Abstract

The present invention provides a method for producing a genetically sterile fish, which reliably makes cultured fishes sterile, wherein edible parts of the cultured fishes are large and the flesh quality and the color of the cultured fishes are favorable, and a method for using the genetically sterile fish to mass-produce the genetically sterile fish. The present invention is a method for producing a genetically sterile fish by knocking out, by genome editing, a follicle-stimulating hormone receptor gene of a breeding target fish. The present invention is a method for mass-producing a genetically sterile fish, wherein: a next generation genetically sterile individual is produced, by transplanting, to a germ cell deficient individual, germ cells of the genetically sterile individual which has been obtained by the method for producing a genetically sterile fish; and then the germ cell deficient individual is produced by knocking out, by genome editing, a dead end gene.

IPC Classes  ?

• A01K 67/0276 - Knock-out vertebrates
• C12N 15/09 - Recombinant DNA-technology
• C12N 15/12 - Genes encoding animal proteins

Abstract

Provided is a method for obtaining the germ cell lineage of an oviparous vertebrate more efficiently than conventional techniques. A host oviparous vertebrate is prepared at a developmental stage after the development of black pigmentary cells in the retina and before the formation of multiple layers of germ cells in the genitals, and isolated undifferentiated germ cells from a donor oviparous vertebrate are transplanted into the host oviparous vertebrate.

IPC Classes  ?

• A01K 67/02 - Breeding vertebrates
• C12N 5/0735 - Embryonic stem cellsEmbryonic germ cells
• C12N 5/075 - OocytesOogonia
• C12N 5/076 - Sperm cellsSpermatogonia
• C12N 5/10 - Cells modified by introduction of foreign genetic material, e.g. virus-transformed cells

Abstract

The purpose of the present invention is to provide an actually usable aquaculture method for octopus or the like.　The above-mentioned problem can be solved by a gelled feed composition for dibranchiates according to the present invention, the feed composition containing: at least one compound selected from the group consisting of taurine, glycine, alanine, and arginine; and a protein.

IPC Classes  ?

• A23K 20/142 - Amino acidsDerivatives thereof
• A01K 61/10 - Culture of aquatic animals of fish
• A23K 50/80 - Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs

Abstract

The transplant fish production method includes selecting a donor fish species, selecting first and second fish species which are a combination that could be sterile, producing a hybrid fish species of the selected first fish species and second fish species, and transplanting reproductive cells of the donor fish species into the produced hybrid fish species.

IPC Classes  ?

• A01K 67/02 - Breeding vertebrates

Abstract

This anchor device (20) comprises a shaft member (22) which extends along a central axis (A) and which has a tension member (85) attached thereto, and a first plate member (30) and a second plate member (40) that are configured to be capable of rotating relative to one other about the central axis (A), wherein: the first plate member (30) has a first rear end portion (31) that is farthest from the center axis (A) in a direction in which the first plate member (30) extends and in a direction orthogonal to the center axis (A); the second plate member (40) has a second rear end portion (41) that is farthest from the central axis (A) in a direction in which the second plate member (40) extends and in a direction orthogonal to the central axis (A); and the anchor device (20) is configured to be capable of changing from a folded state in which the first rear end portion (31) and the second rear end portion (41) are close to each other to an unfolded state in which the first rear end portion (31) and the second rear end portion (41) are separated from each other.

IPC Classes  ?

• B63B 21/34 - Anchors rigid when in use with two or more flukes
• B63B 21/26 - Anchors securing to bed
• F03D 13/25 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors specially adapted for offshore installation

Abstract

[Problem] To inhibit scale formation on an inner wall of a flow passage, and/or corrosion of the inner wall of the flow passage. [Solution] A scale-inhibiting system 1 comprises: a piping 11 in which a hydrophilic liquid L1 flows; a storage unit 12 which is provided at an outflow port of the piping 11, and stores the hydrophilic liquid L1 and a hydrophobic liquid L2 having specific gravity different from that of the hydrophilic liquid L1; a circulation piping 13 having one end connected to a portion of the storage unit 12 where the hydrophobic liquid L2 is stored, and another end connected to the piping 11; and a pump 14 which is provided in the circulation piping 13, and generates multiphase flow of the hydrophilic liquid L1 and the hydrophobic liquid L2 in the piping 11 by injecting the hydrophobic liquid L2 stored in the storage unit 12 into the piping 11.

IPC Classes  ?

• F16L 58/00 - Protection of pipes or pipe fittings against corrosion or incrustation
• C02F 5/00 - Softening waterPreventing scaleAdding scale preventatives or scale removers to water, e.g. adding sequestering agents
• F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
• F28F 19/00 - Preventing the formation of deposits or corrosion, e.g. by using filters
• F28G 9/00 - Cleaning by flushing or washing, e.g. with chemical solvents

Abstract

Provided is an induction heating device capable of controlling the heating distribution of a coil while suppressing distortion of a power supply current. The heating device according to one embodiment comprises: three converters (11, 12, 13) that directly convert three power supply currents of a three-phase AC power supply (30) to three high-frequency AC currents having a frequency higher than the frequency of the power supply currents; and three coils (21, 22, 23) that heat an object (50) to be heated by means of harmonic alternating currents supplied individually from the three converters (11, 12, 13). The three coils (21, 22, 23) are disposed so that the distance between the centers thereof is not more than the diameter of the coils.

IPC Classes  ?

• H05B 6/44 - Coil arrangements having more than one coil or coil segment
• H05B 6/04 - Sources of current

Abstract

The method for producing a fish includes an fsh introduction step (S2) in which DNA comprising a constitutive promoter and a gene that is functionally linked to the promoter and that encodes a follicle-stimulating hormone is introduced into a fertilized fish egg. The constitutive promoter and the gene that is functionally linked to the promoter and that encodes a follicle-stimulating hormone are introduced into the genome of the fish. The method for producing a fish gamete includes a step in which germline stem cells of another type of fish are transplanted into the abdominal cavity of fry of such a fish.

IPC Classes  ?

• C12N 15/16 - Hormones
• A01K 67/027 - New or modified breeds of vertebrates
• C12N 5/075 - OocytesOogonia
• C12N 5/076 - Sperm cellsSpermatogonia

Abstract

The purpose of the present invention is to provide a fish feed capable of increasing highly unsaturated fatty acid in muscle.　This problem can be solved by means of a fish feed according to the present invention, the fish feed containing a plant-based raw material and a highly unsaturated fatty acid–containing microorganism.

IPC Classes  ?

• A23K 50/80 - Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
• A23K 10/16 - Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions
• A23K 20/158 - Fatty acidsFatsProducts containing oils or fats

Abstract

Provided is a navigation assistance device capable of obtaining an obstacle zone by target in consideration of an allowance. A navigation assistance device for obtaining an obstacle zone by target from a relationship between an own ship and a target ship includes a margin acquisition unit that acquires a margin indicating the degree of allowance, and an arithmetic unit that obtains a margin position which is a position separated from at least any of the bow or stern of the target ship in a target occupied space set with reference to the position of the target ship by a distance determined according to the margin, obtains a collision course based on a position determined according to the motion vector of the target ship with reference to the margin position, and calculates the obstacle zone by target based on the obtained collision course.

IPC Classes  ?

• B63B 43/18 - Improving safety of vessels, e.g. damage control, not otherwise provided for preventing collisionImproving safety of vessels, e.g. damage control, not otherwise provided for reducing collision damage
• B63B 49/00 - Arrangements of nautical instruments or navigational aids
• G08G 3/02 - Anti-collision systems

Abstract

The purpose of the present invention is to provide: a method for easily producing a hybrid (a hybrid fish) using a surrogate parent fish; and a hybrid fish.　This problem can be solved by the method according to the present invention for producing a hybrid between two fish species belonging to the same family, the two fish species belonging to different genera. The method for producing a fish hybrid includes: (A) (a-1) a step for transplanting undifferentiated germ cells of a second fish into a larva of a first fish to obtain a male surrogate of the second fish, and (a-2) a step for mating a female first fish with the male surrogate; or (B) (b-1) a step for transplanting undifferentiated germ cells of a second fish into a larva of a first fish to obtain a female surrogate of the second fish, and (b-2) a step for mating a male first fish with the female surrogate; or (C) (c-1) a step for transplanting undifferentiated germ cells of a first fish into a larva of a third fish to obtain a male surrogate of the first fish, (c-2) a step for transplanting undifferentiated germ cells of a second fish into a larva of the third fish to obtain a female surrogate of the second fish, and (c-3) a step for mating the male surrogate of the first fish with the female surrogate of the second fish.

IPC Classes  ?

• A01K 67/027 - New or modified breeds of vertebrates
• A01K 61/10 - Culture of aquatic animals of fish

Abstract

Provided is a detection device comprising a laser control unit for performing control so as to emit laser at the sea surface, an image acquisition unit for acquiring a sea surface image obtained by imaging the sea surface, and a detection unit for detecting marine life using scattered light due to scattering of the laser included in the sea surface image. Provided is a detection device comprising a radio wave control unit for performing control so as to emit radio waves at the sea surface, a radio wave information acquisition unit for acquiring information regarding reflected radio waves produced by reflection of the radio waves, and a detection unit for detecting marine life using the permittivity of the reflected radio waves.

IPC Classes  ?

• G01V 8/10 - Detecting, e.g. by using light barriers
• G01S 13/04 - Systems determining presence of a target
• G01V 3/12 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with electromagnetic waves

Abstract

A thermoelectric generation apparatus (1) comprises: a thermal battery (10) in which a first electrode (11) and a second electrode (12) are opposed with an electrolyte (13) therebetween, and which is configured to output an electromotive force by causing an oxidation-reduction potential difference between the first electrode (11) and the second electrode (12) due to a temperature change in the first electrode (11) and the second electrode (12); and a control unit (40) that controls the circulation of fluid with respect to the inside or outside of the thermal battery (10). The control unit (40) switches between a first state in which a high-temperature fluid is introduced as the fluid, and a second state in which a low-temperature fluid is introduced as the fluid.

IPC Classes  ?

• H01M 14/00 - Electrochemical current or voltage generators not provided for in groups Manufacture thereof
• H01M 50/77 - Arrangements for stirring or circulating the electrolyte with external circulating path
• H10N 15/00 - Thermoelectric devices without a junction of dissimilar materialsThermomagnetic devices, e.g. using the Nernst-Ettingshausen effect

Abstract

A linear synchronous machine (1) comprises a field part (10) and an armature part (30). The field part (10) comprises a first field part (11), a second field part (12) opposed to the first field part (11), and a third field part (13) positioned between the first field part (11) and the second field part (12). The armature part (30) comprises a first armature part (31) positioned between the first field part (11) and the third field part (13), and a second armature part (32) positioned between the second field part (12) and the third field part (13). The first field part (11) includes a plurality of first magnets (21). The second field part (12) includes a plurality of second magnets (22). The third field part (13) includes a plurality of third magnets (23). The first magnets (21) and the second magnets (22) are respectively arranged in Halbach arrays.

IPC Classes  ?

• H02K 41/03 - Synchronous motorsMotors moving step by stepReluctance motors
• H02K 1/34 - Reciprocating, oscillating or vibrating parts of the magnetic circuit

Abstract

The purpose of the present invention is to provide a novel anti-WSSV agent which can prevent infection by a white spot syndrome virus (WSSV) before the infection occurs. The present invention provides: an anti-WSSV agent containing a lignin component such as lignin sulfonate as an active ingredient; and a method for preventing infection of white spot disease, the method comprising administering the agent to a crustacean. The lignin component is a component derived from a sulfite digestion method of a lignocellulose raw material, and preferably comprises an extracted component. The anti-WSSV agent can be used preferably for a crustacean that is subjected to marine culture or fish cultivating, and can be used more preferably for shrimp. The anti-WSSV agent can be used as a feed for crustaceans such as shrimp or a water treatment agent for marine culture or fish cultivating.

IPC Classes  ?

• A23K 20/111 - Aromatic compounds
• A01K 61/59 - Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
• A01N 65/00 - Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
• A01P 1/00 - DisinfectantsAntimicrobial compounds or mixtures thereof
• A23K 50/80 - Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs

Abstract

The present invention detects the luminance level of light having an intensity exceeding the saturation level of an image sensor. Provided is a method that can be used for detecting the luminance level of light from a high-luminance light source. The method comprises: a step for receiving light from a first light emitting element by means of an image sensor; a step for detecting, in a light reception region in which the light from the first light emitting element has been received, a first saturation region in which the amount of the received light is greater than a saturation level of the image sensor; and a step for determining the size of the first saturation region as a first detection value that represents the luminance level of the light from the first light emitting element.

IPC Classes  ?

• H04B 10/11 - Arrangements specific to free-space transmission, i.e. transmission through air or vacuum

Abstract

A fluid container that can prevent a container from being in contact with a heat source fluid and stably hold the heat source fluid, even if corrosive, in the container to perform heat recovery and the like. A first fluid and a second fluid are both allowed to flow into and out of a container body 10. The second fluid is supplied into the container body by a second fluid supply unit 30 to form a layer of the second fluid flowing down along an inner surface of the container body 10, causing the second fluid to be interposed between the first fluid and the inner surface of the container body. This eliminates deterioration of the container body due to corrosion of the container body by the fact that the first fluid has contact with the inner surface of the container body, as well as scale precipitation from the first fluid.

IPC Classes  ?

• F28C 3/04 - Other direct-contact heat-exchange apparatus the heat-exchange media both being liquids

Abstract

A radial flux synchronous machine includes a stator in a cylindrical shape provided with a plurality of magnetic poles, an inner rotor disposed radially inward of the stator and having an inner armature opposing the magnetic pole from radially inward, and an outer rotor disposed radially outward of the stator and having an outer armature opposing the magnetic pole (from radially outward.

IPC Classes  ?

• H02K 16/02 - Machines with one stator and two rotors
• B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
• H02K 21/26 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with rotating armatures and stationary magnets

Abstract

[Problem] To provide a method for obtaining a germline of an oviparous vertebrate animal efficiently as compared to conventional techniques. [Solution] After black pigment cells are developed in the retina, a host oviparous vertebrate animal that is in a developmental stage prior to formation of multiple layers of germ cells in a genital organ is prepared, and isolated undifferentiated germ cells originating from a donor oviparous vertebrate animal are transplanted in the host oviparous vertebrate animal.

IPC Classes  ?

• A01K 67/02 - Breeding vertebrates
• C12N 15/09 - Recombinant DNA-technology
• C12Q 1/04 - Determining presence or kind of microorganismUse of selective media for testing antibiotics or bacteriocidesCompositions containing a chemical indicator therefor
• C12N 5/075 - OocytesOogonia
• C12N 5/076 - Sperm cellsSpermatogonia
• C12N 5/10 - Cells modified by introduction of foreign genetic material, e.g. virus-transformed cells

Abstract

A determination device includes: a sway detector that detects sway of a person when the person moves; and a controller. The determination device performs spectrum analysis by resolving sway data outputted from the sway detector into frequency components. In a spectrum obtained from the spectrum analysis, a first peak, a second peak, and a third peak sequentially appear in order of increasing frequency. The controller determines a state of a body of the person based on the first peak, the second peak, and the third peak.

IPC Classes  ?

• B25J 9/16 - Programme controls
• A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons

Abstract

The present invention achieves an agent against white spot syndrome virus that has an excellent effect of controlling white spot syndrome virus. An agent against white spot syndrome virus according to one embodiment of the present invention contains an ingredient derived from Rhodovulum sp.

IPC Classes  ?

• A01N 63/20 - BacteriaSubstances produced thereby or obtained therefrom
• A01K 61/59 - Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
• A01N 25/00 - Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of applicationSubstances for reducing the noxious effect of the active ingredients to organisms other than pests
• A01P 1/00 - DisinfectantsAntimicrobial compounds or mixtures thereof
• C12N 1/20 - BacteriaCulture media therefor
• C12P 1/04 - Preparation of compounds or compositions, not provided for in groups , by using microorganisms or enzymesGeneral processes for the preparation of compounds or compositions by using microorganisms or enzymes by using bacteria

Abstract

Provided is a navigation assistance device with which it is possible to determine a navigation obstacle zone by taking into account a margin. This navigation assistance device allows for determination of a navigation obstacle zone based on the relationship between one vessel and another vessel. The navigation assistance device comprises: a margin extent acquisition unit that acquires a margin extent indicating the extent of a margin; and a computation unit that determines a margin position, which is a position away from the position of at least one of the bow or the stern of the other vessel by a distance determined according to the margin extent in a target occupied space set with respect to the position of the other vessel, that determines a collision course on the basis of a position determined according to the motion vector of the other vessel with respect to the margin position, and that calculates the navigation obstacle zone on the basis of the thus determined collision course.

IPC Classes  ?

• G08G 3/02 - Anti-collision systems
• B63B 43/18 - Improving safety of vessels, e.g. damage control, not otherwise provided for preventing collisionImproving safety of vessels, e.g. damage control, not otherwise provided for reducing collision damage
• B63B 49/00 - Arrangements of nautical instruments or navigational aids

Abstract

The present invention provides a Ti-O-based material in which the Ti-O-based material containing oxygen as a chemical component is used as a material constituting a device for handling supercritical water to reduce refining cost. The Ti-O-based material according to an embodiment of the present invention contains oxygen as a chemical component, wherein the oxygen content is 0.05 mass% to 3.0 mass% with the remainder being made up by titanium and unavoidable impurities, and in a supercritical water oxidation test carried out by placing a crucible containing a sample of the Ti-O-based material or a sample of pure titanium and an empty crucible that does not contain a sample in a reactor, the weight increase per unit area of the sample of the Ti-O-based material after the test is equal to or smaller than the weight increase per unit area of the sample of the pure titanium.

IPC Classes  ?

• C22C 14/00 - Alloys based on titanium
• C22C 1/02 - Making non-ferrous alloys by melting
• B01J 3/00 - Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matterApparatus therefor

Abstract

The purpose of the present invention is to provide a method for controlling CyHV-2 infectious diseases in fish. The present invention pertains to a composition for use in controlling cyprinid herpesvirus 2 (CyHV-2) infectious diseases in fish, the composition containing attenuated CyHV-2.

IPC Classes  ?

• A61K 39/245 - Herpetoviridae, e.g. herpes simplex virus
• A61K 35/763 - Herpes virus
• A61P 31/22 - Antivirals for DNA viruses for herpes viruses
• C12N 7/04 - Inactivation or attenuationProducing viral sub-units

Abstract

This waterborne mobility system 1 has: a management device 10; and at least one battery-powered boat 20 that is wirelessly connected to the management device 10 and is moved in a predetermined management area. The waterborne mobility system is provided with: an information acquisition unit 111 that acquires positional information about, and a battery residual amount of, the battery-powered boat 20; a port distance calculation unit 112 that calculates a distance between the battery-powered boat 20 and each of ports P1 to P4 on the basis of the positional information; a cruising distance calculation unit 113 that calculates a cruising distance on the basis of the battery residual amount; an arrival-possibility determination unit 114 that determines a possibility of arrival at each of the ports P1 to P4 on the basis of the cruising distance and a corresponding one of the distances; and a ship steering mode change unit 115 that, when the possibility of arrival satisfies a predetermined danger criterion, changes a ship steering mode from a user ship steering mode to a forced navigation mode.

IPC Classes  ?

• B63B 49/00 - Arrangements of nautical instruments or navigational aids
• G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
• G06Q 50/30 - Transportation; Communications
• B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor

Abstract

Provided are a fluid container and a heat exchange device, wherein: by preventing the container from coming into contact with a heat source fluid, even a corrosive heat source fluid is stably held in the container, and heat recovery and the like can be performed; and a state in which the degradation of the inside of the container is unlikely to occur can be easily ensured without using high-cost members, thereby suppressing manufacturing costs. While a first fluid and a second fluid can be introduced and discharged into and from a container body 10, a second fluid supply unit 30 supplies the second fluid into the container body, and a layer of the second fluid flowing down along the inner surface of the container body 10 is formed, so that the layer of the second fluid is interposed between the first fluid inside the container body and the inner surface of the container body. Therefore, it is possible to suppress degradation of the container body 10 due to corrosion of the container body caused by the first fluid introduced into the container body coming into contact with the inner surface of the container body 10 and due to scale precipitation from the first fluid, and thus the first fluid can be present inside the container body without any problem.

IPC Classes  ?

• F28C 3/04 - Other direct-contact heat-exchange apparatus the heat-exchange media both being liquids
• F28C 3/06 - Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour

Abstract

A radial gap type synchronous machine (1) comprises: a cylindrical stator (10) provided with a plurality of magnetic poles (11); an inner rotor (20) which is disposed radially inward of the stator (10), and which has an inner armature (21) opposing the magnetic poles (11) from radially inward direction; and an outer rotor (30) which is disposed radially outward of the stator (10), and which has an outer armature (31) opposing the magnetic poles (11) from radially outward direction.

IPC Classes  ?

• H02K 16/02 - Machines with one stator and two rotors
• H02K 21/26 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with rotating armatures and stationary magnets
• B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor

Abstract

A scale thickness estimating system according an embodiment includes: a fluid temperature acquiring unit that acquires a temperature of a fluid flowing in a pipe; a flow path outer surface-temperature acquiring unit that acquires a temperature of an outer surface of the pipe; a heat flux acquiring unit that acquires a heat flux on the outer surface of the pipe; a flow path wall-thermal conductivity acquiring unit that acquires a flow path wall thermal conductivity of the pipe; a scale thermal conductivity acquiring unit that acquires a scale thermal conductivity of scale depositing on an inner surface of the pipe; and a scale thickness estimating unit that estimates a thickness of the scale based on the temperature of the fluid, the temperature of the outer surface, the heat flux, the flow path wall thermal conductivity, and the scale thermal conductivity.

IPC Classes  ?

• G01K 17/00 - Measuring quantity of heat
• F23J 3/02 - Cleaning furnace tubesCleaning flues or chimneys
• F23M 5/08 - Cooling thereofTube walls
• G01B 21/08 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness

Abstract

The purpose of the present invention is to inexpensively obtain a titanium material which contains α-Ti phase crystals and exhibits the largest possible ductility at room temperature and at low temperatures.　This titanium material has a texture comprising α-Ti phase crystals, the (10-10) plane of the crystal lattice of said crystals has a preferred orientation in the drawing direction, and the (0001) plane of the crystal lattice of said crystals is substantially parallel to the surface. Such a titanium material can be produced by drawing a titanium material containing α-Ti phase crystals at a temperature at which it is possible for the α-Ti phase crystals to maintain the α-Ti phase, and sintering the titanium material obtained by the drawing.

IPC Classes  ?

• C22F 1/18 - High-melting or refractory metals or alloys based thereon
• C22C 14/00 - Alloys based on titanium
• C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working

Abstract

Disclosed is a method for determining the sex of yellowtails, the method comprising a step of identifying whether an amino acid residue at position 143 in polypeptide encoded by the HSD17B1 gene of yellowtails is a glutamic acid residue or a glycine residue; a nucleic acid molecule or a primer set which is for use in said method; or a kit comprising the same, for determining the sex of yellowtails. The method according to the present invention is useful in that the genetic sex of yellowtails can be accurately determined.

IPC Classes  ?

• C12Q 1/6879 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for sex determination

Abstract

A radial-gap type superconducting synchronous machine 1 is prepared which includes a rotor 20 having, on its peripheral side, a convex magnetic pole 21 which includes, at its distal end part, bulk superconductors 30. When viewed in the direction of the rotational axis C1 of the rotor 20, the magnetic pole center side of the bulk superconductors 30 is disposed nearer to a stator 10 than the magnetic pole end side of the bulk superconductors 30. A ferromagnet 28 is disposed on the rotational axis C1 side of the bulk superconductors 30. A magnetizing apparatus 100 is disposed outside the bulk superconductors 30 in the radial direction of the rotor 20. Magnetization of the bulk superconductors 30 is performed by directing magnetic flux lines from the magnetizing apparatus 100 toward the bulk superconductors 30.

IPC Classes  ?

• H02K 55/00 - Dynamo-electric machines having windings operating at cryogenic temperatures
• H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
• H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
• H02K 55/04 - Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
• H02K 1/2793 - Rotors axially facing stators
• H01F 6/00 - Superconducting magnetsSuperconducting coils
• H01F 13/00 - Apparatus or processes for magnetising or demagnetising

Abstract

foowsfoowss.

IPC Classes  ?

• G01N 25/18 - Investigating or analysing materials by the use of thermal means by investigating thermal conductivity
• F22B 37/38 - Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
• G01K 13/02 - Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
• G01K 17/08 - Measuring quantity of heat conveyed by flowing media, e.g. in heating systems based upon measurement of temperature difference

Abstract

Provided is a norovirus deactivator, including a lysozyme component that includes at least one kind selected from lysozyme and/or a salt thereof, and a denatured product thereof.

IPC Classes  ?

• A61K 38/47 - Hydrolases (3) acting on glycosyl compounds (3.2), e.g. cellulases, lactases
• A61K 9/16 - AgglomeratesGranulatesMicrobeadlets
• A61K 9/20 - Pills, lozenges or tablets
• A61K 9/00 - Medicinal preparations characterised by special physical form
• C12N 7/00 - Viruses, e.g. bacteriophagesCompositions thereofPreparation or purification thereof
• C12N 9/36 - Hydrolases (3.) acting on glycosyl compounds (3.2) acting on beta-1, 4 bonds between N-acetylmuramic acid and 2-acetylamino 2-deoxy-D-glucose, e.g. lysozyme

Abstract

Disclosed is: a method for determining the sex of yellowtails, the method comprising a step for identifying whether an amino acid residue at position 143 in polypeptide encoded by the HSD17B1 gene of yellowtails is a glutamic acid residue or a glycine residue; a nucleic acid molecule or a primer set which is used in said method; or a kit which is for determining the sex of yellowtails and comprises the same. The method according to the present invention is useful in that the genetic sex of yellowtails can be accurately determined.

IPC Classes  ?

• C12Q 1/686 - Polymerase chain reaction [PCR]
• C12N 15/11 - DNA or RNA fragmentsModified forms thereof
• C12Q 1/6879 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for sex determination

Abstract

Provided is a rotary machine capable of increasing cooling efficiency while preventing an increase in the weight and cost of a rotor even in a case where the diameter of the rotor is increased. A rotary machine including a rotor which is rotatable around a rotational axis, and a cooling device, wherein the rotor includes: a hollow cooling medium flow section provided in a center portion of the rotor in a radial direction and extending along the rotational axis; and a cooling target provided outward of the cooling medium flow section in the radial direction, and the rotary machine comprises a stationary section pipe which introduces a liquid phase cooling medium generated by cooling in the cooling device into the cooling medium flow section, and returns a gas phase cooling medium present in an inside of the cooling medium flow section from the cooling medium flow section toward the cooling device, the rotor including: a leading passage which leads the liquid phase cooling medium to a region which is in the vicinity of the cooling target through a first opening formed in a side surface of the cooling medium flow section, the side surface extending along the rotational axis; and a return passage which returns the gas phase cooling medium to the inside of the cooling medium flow section, the gas phase cooling medium being generated by evaporation of the liquid phase cooling medium in the region which is in the vicinity of the cooling target, by heat exchange between the liquid phase cooling medium and the cooling target.

IPC Classes  ?

• H02K 55/04 - Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings
• H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
• H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
• H02K 9/20 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing

Abstract

The present invention relates to a composition for controlling the infection of shrimp by Vibrio bacteria that express a toxin A and a toxin B. The present invention further relates to a method for controlling the infection of shrimp by Vibrio bacteria that express shrimp toxin A and toxin B, the method including the administration to or ingestion by shrimp of this composition.

IPC Classes  ?

• A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
• A23K 20/147 - Polymeric derivatives, e.g. peptides or proteins
• A23K 50/80 - Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
• A61P 31/04 - Antibacterial agents

Abstract

This aquatic animal escape device 1 is designed for a fixed net and provided with a net body 2 provided with a slit 3 having an end 3a and an end 3b, and buoys 51, 52 provided on the net body 2. The buoy 51 is provided in a buoy attachment region U1 and the buoy 52 is provided in a buoy attachment region U2.

IPC Classes  ?

• A01K 69/00 - Stationary catching devices for fishing

Abstract

A rotary machine cools a cooling target inside a rotor rotatable around a rotational axis, includes a condenser section disposed outside the rotor and condenses a gas phase cooling medium into a liquid phase cooling medium; an evaporator section disposed inside the rotor, and evaporates the liquid phase cooling medium generated by condensation in the condenser section into the gas phase cooling medium, by heat exchange between the cooling target and the liquid phase cooling medium; and a coupling pipe flows the liquid phase cooling medium and the gas phase cooling medium between the evaporator section and the condenser section, wherein the coupling pipe has a pipe structure in which a liquid phase cooling medium passage flows the liquid phase cooling medium generated by the condensation in the condenser section and a gas phase cooling medium passage flows the gas phase cooling medium generated by evaporation in the evaporator section.

IPC Classes  ?

• H02K 9/20 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
• H02K 55/02 - Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type
• H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
• F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
• H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
• H02K 55/04 - Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings

Abstract

An underwater propulsion device 1 according to one embodiment of the present invention provides a propulsion force to a body 131 of an underwater exploration apparatus 130, and is provided with: a propeller 10 that has a cylindrical propeller shaft 11 and propeller blades 12 provided to the tip of the propeller shaft 11; a drive part 20 that rotationally drives the propeller 10; and a support shaft 30 that rotatably supports the propeller 10 and that is inserted into the propeller shaft, wherein the support shaft 30 is provided with a wire insertion hole CH which is provided in a longitudinal direction so as to include a center axis C of the support shaft 30 and through which can be inserted a wire 160 to be towed by the underwater exploration apparatus 130.

IPC Classes  ?

• B63H 23/34 - Propeller shaftsPaddle-wheel shaftsAttachment of propellers on shafts
• B63C 11/48 - Means for searching for underwater objects
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor

Abstract

The present invention develops a marker of a genetic trait of high growth in Epinephelus fuscoguttatus to thereby provide a method whereby a fish having a genetic trait of high growth can be discriminated without killing any individuals. By using genetic markers developed with regard to Epinephelus bruneus, a genetic map of E. fuscoguttatus was prepared. Cultured E. fuscoguttatus fish were classified into a heavy-weight group and a light-weight group and then subjected to QTL analysis with use of the aforesaid genetic markers. As a result, six main genetic markers affecting the genetic trait of high growth were found out, said genetic markers being Ebr00010FRA (SEQ ID NO: 1) and Ebr00935FRA (SEQ ID NO: 2) which are DNA marker loci on linkage group 12 and Ebr00846FRA (SEQ ID NO: 3), Ebr00924FRA (SEQ ID NO: 4), CfuSTR210 (SEQ ID NO: 5) and Ebr01255FRA (SEQ ID NO: 6) which are DNA marker loci on linkage group 21.

IPC Classes  ?

• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving nucleic acids
• C12N 15/09 - Recombinant DNA-technology

Abstract

5 is dispersed and each provided with a top surface, a bottom surface, and side surfaces, combined together, in which superconducting bulk magnet, bulk material units, each comprising a superconducting bulk material and a bulk material reinforcing member arranged so as to cover a side surface of the same, are arranged facing the same direction and contacting each other to form an assembly, a side surface of the assembly is covered by an assembly side surface reinforcing member, a top surface and bottom surface of the assembly are respectively covered by an assembly top reinforcing member and an assembly bottom reinforcing member, and the assembly side surface reinforcing member, the assembly top reinforcing member, and the assembly bottom reinforcing member are joined into an integral unit, is provided.

IPC Classes  ?

• H01F 6/00 - Superconducting magnetsSuperconducting coils
• C01G 1/00 - Methods of preparing compounds of metals not covered by subclasses , , , , in general
• C01G 3/00 - Compounds of copper
• H01F 1/11 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
• H01B 12/02 - Superconductive or hyperconductive conductors, cables or transmission lines characterised by their form
• C04B 35/45 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on copper oxide or solid solutions thereof with other oxides

Abstract

A radial-gap type superconducting synchronous machine 1 is prepared which includes a rotor 20 having, on its peripheral side, a convex magnetic pole 21 which includes, at its distal end part, bulk superconductors 30. When viewed in the direction of the rotational axis C1 of the rotor 20, the magnetic pole center side of the bulk superconductors 30 is disposed nearer to a stator 10 than the magnetic pole end side of the bulk superconductors 30. A ferromagnet 28 is disposed on the rotational axis C1 side of the bulk superconductors 30. A magnetizing apparatus 100 is disposed outside the bulk superconductors 30 in the radial direction of the rotor 20. Magnetization of the bulk superconductors 30 is performed by directing magnetic flux lines from the magnetizing apparatus 100 toward the bulk superconductors 30.

IPC Classes  ?

• H02K 55/00 - Dynamo-electric machines having windings operating at cryogenic temperatures
• H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
• H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
• H02K 55/04 - Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
• H02K 1/27 - Rotor cores with permanent magnets
• H01F 6/00 - Superconducting magnetsSuperconducting coils
• H01F 13/00 - Apparatus or processes for magnetising or demagnetising

Abstract

The present invention relates to a monoclonal antibody that specifically recognizes undifferentiated germ cells of scombridae fish, wherein the monoclonal antibody is an antibody against undifferentiated germ cells isolated from a testis or an ovary of scombridae fish. The present invention provides an antibody that can isolate undifferentiated germ cells of scombridae fish.

IPC Classes  ?

• C07K 16/18 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans
• A01K 67/02 - Breeding vertebrates
• C12N 5/075 - OocytesOogonia
• C12N 5/076 - Sperm cellsSpermatogonia
• C12N 15/09 - Recombinant DNA-technology
• C12P 21/08 - Monoclonal antibodies

Abstract

The present invention relates to a marker for identifying germ cells, comprising (I) a marker for identifying germ cells having engraftability at a host gonad and/or (II) a marker for identifying germ cells not having engraftability at a host gonad. The present invention provides a germ cell marker that can identify the presence or absence of engraftability at a host gonad in fish.

IPC Classes  ?

• C12N 15/09 - Recombinant DNA-technology
• C07K 16/18 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans
• C12N 5/075 - OocytesOogonia
• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving nucleic acids

Abstract

[Problem] To provide a denitrification device and an aquatic organism rearing system that can efficiently denitrify rearing water for an aquatic organism under an aerobic condition. [Solution] A denitrification device 20 according to an embodiment of the present invention for rearing water used to rear aquatic organisms comprises: a filtration tank 21 to which the rearing water retained in a rearing water - tank 2 is supplied via a pump 3; a filter material 22 that is accommodated within the filtration tank 21 and on which denitrification bacteria for causing nitrogen in the form of nitrate in the rearing water to undergo reduction, and an intermittent water discharge unit 23 for intermittently performing an oxygen uptake operation by discharging the rearing water accumulated in the filtration tank 21 into the rearing water tank 2 to expose the filter material 22.

IPC Classes  ?

• A01K 63/04 - Arrangements for treating water specially adapted to receptacles for live fish
• C02F 3/06 - Aerobic processes using submerged filters
• C02F 3/10 - PackingsFillingsGrids
• C02F 3/34 - Biological treatment of water, waste water, or sewage characterised by the microorganisms used

Abstract

A rotating machine allows a body to be cooled in a rotor rotating around a rotation axis line to be cooled by the thermosiphon effect and is provided with: a condensing unit disposed outside the rotor and condensing a refrigerant; an evaporation unit for evaporating, inside the rotor, the liquid-phase refrigerant condensed by the condensing unit to exchange heat with the body to be cooled; and a connecting pipe allowing the refrigerant to flow back and forth between the evaporation unit and the condensing unit and having a bend portion. The connecting pipe has a pipe structure in which a liquid-phase refrigerant flow path in which the liquid-phase refrigerant condensed in the condensing unit circulates and a gas-phase refrigerant flow path in which the gas-phase refrigerant evaporated in the evaporation unit circulates are each provided separately. This makes it possible for the rotating machine to stably maintain a heat transport capability between the condensing unit and the evaporation unit even when the entire device tilts or swings.

IPC Classes  ?

• H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
• F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
• H02K 9/20 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing

Abstract

Provided is a rotating machine with which an increase in cooling efficiency can be achieved while preventing an increase in weight and cost of a rotor even when the diameter of the rotor is increased. The rotating machine is provided with a rotor rotating around a rotation axis line and a cooling machine. The rotor is provided with: a hollow refrigerant circulation portion formed at a radial direction central part along the rotation axis line; and a body to be cooled provided outside the refrigerant circulation portion in the radial direction. The rotating machine is provided with a fixed portion pipe for introducing a liquid-phase refrigerant cooled by the cooling machine into the refrigerant circulation portion, and for returning a gas-phase refrigerant in the refrigerant circulation portion from the refrigerant circulation portion to the cooling machine side. The rotor is equipped with: an introduction flow path for guiding the liquid-phase refrigerant to the vicinity of the body to be cooled via a first opening portion formed in a side wall along the rotation axis line of the refrigerant circulation portion; and a return flow path for returning, into the refrigerant circulation portion, the gas-phase refrigerant produced as a result of the liquid-phase refrigerant evaporating at the vicinity of the body to be cooled and thereby exchanging heat with the body to be cooled.

IPC Classes  ?

• H02K 55/04 - Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings
• H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Abstract

A lateral rollover risk warning device can report vehicle rollover risk in real time during traveling with no need for inputting radius of a curved path in advance. It includes a first acceleration sensor detecting an external force applied in up-down direction of a vehicle body; an angular velocity sensor detecting a rotation around vehicle axis of vehicle body; and a second acceleration sensor detecting an external force in right-left direction of vehicle body, with an arithmetic part using detection results given by first acceleration sensor and angular velocity sensor to calculate a limit index of vehicle being led to a rollover, and using detection result given by second acceleration sensor to calculate a comparative index to be compared with limit index in real time; and a reporting part using limit index and comparative index to report lateral rollover risk warning information telling the rollover risk.

IPC Classes  ?

• B60R 21/0132 - Electrical circuits for triggering safety arrangements in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters
• B63B 43/00 - Improving safety of vessels, e.g. damage control, not otherwise provided for
• B60R 16/023 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems
• G01M 1/12 - Static balancingDetermining position of centre of gravity
• B60W 40/13 - Load or weight
• B63B 39/14 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude for indicating inclination or duration of roll

Abstract

This transplant fish production method includes selecting a donor fish species, selecting first and second fish species which are a combination that could be sterile, producing a hybrid fish species of the selected first fish species and second fish species, and transplanting reproductive cells of the donor fish species into the produced hybrid fish species.

IPC Classes  ?

• A01K 67/027 - New or modified breeds of vertebrates
• C12N 5/071 - Vertebrate cells or tissues, e.g. human cells or tissues
• C12N 15/09 - Recombinant DNA-technology

Abstract

b0 as initial setting data, arithmetic part 31 calculating total weight M, being based on vertical oscillation center-of-gravity-specific natural vibration value identified and initial setting data.

IPC Classes  ?

• G01G 19/08 - Weighing apparatus or methods adapted for special purposes not provided for in groups for incorporation in vehicles
• G01G 19/02 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing wheeled or rolling bodies, e.g. vehicles
• G01G 3/16 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of frequency of oscillations of the body

Abstract

Provided is a superconducting bulk magnet in which multiple superconducting bulk bodies are combined, wherein it is possible to prevent damage to the superconducting bulk bodies and generate a strong magnetic field. A superconducting bulk magnet in which RE2BaCUO5 is dispersed in a monocrystalline RE1Ba2Cu3Oy (RE is Y or one or more element selected from among rare-earth elements, and 6.8≤y≤7.1), and in which a plurality of superconducting bulk bodies provided with a top surface, a bottom surface, and side surfaces are combined, wherein the superconducting bulk magnet is characterized by having a configuration in which: bulk body units comprising the superconducting bulk bodies and bulk-body reinforcement members disposed so as to cover the side surfaces of the superconducting bulk bodies are disposed so as to be oriented in the same direction and to contact each other to form an aggregate body, the side surfaces of the aggregate body being covered by aggregate-body side-surface reinforcing members, the top and bottom surfaces of the aggregate body being covered by an aggregate-body top reinforcing member and an aggregate-body bottom reinforcing member, and the aggregate-body side-surface reinforcing members, the aggregate-body top reinforcing member, and the aggregate-body bottom reinforcing member being integrated.

IPC Classes  ?

• H01F 6/00 - Superconducting magnetsSuperconducting coils
• C01G 1/00 - Methods of preparing compounds of metals not covered by subclasses , , , , in general
• C01G 3/00 - Compounds of copper
• H01B 12/02 - Superconductive or hyperconductive conductors, cables or transmission lines characterised by their form
• H01F 1/11 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites in the form of particles

Abstract

Provided are an underwater propulsion device and underwater search device that have reduced vibrations and are capable of performing fine posture control while ensuring necessary propulsion force even during low speed operation. An underwater propulsion device (1) includes: a body (2) with a conical tail portion; a flow passageway (4) having an intake opening (6) in an outer peripheral surface of the body (2) and a discharge opening (7) in the tail portion on the downstream side of the intake opening (6); at least one pump (3) including an impeller (5) disposed in the flow passageway (4); a cylindrical diffuser (8) attached to the body (2) in such a manner as to surround the outer periphery of the discharge opening (7); and a plurality of direction control wings (9) disposed circularly on the outer surfaces of the body (2) in the vicinity of the downstream of the discharge opening (7) and pivotally mounted to the body (2) on the upstream ends thereof.

IPC Classes  ?

• B63C 11/48 - Means for searching for underwater objects
• B63H 11/08 - Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
• B63H 11/103 - Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means to increase efficiency of propulsive fluid, e.g. discharge pipe provided with means to improve the fluid flow
• B63H 11/107 - Direction control of propulsive fluid

Abstract

The present invention addresses the problem of providing a method for inducing the differentiation of separated germ cells into a germline, said method being suitable for practical use, by, in a surrogate parent fish farming method, improving the engraftment ability of transplanted germ cells to a host gonad and increasing the transplantation efficiency. To solve the problem, provided is a method for inducing the differentiation of separated germ cells into a germline by intraperitoneally transplanting separated fish-derived germ cells having been separated from fish testicle or ovary into a host fish individual before or after hatching, said method comprising: preliminarily acquiring an antibody capable of specifically recognizing an undifferentiated germ cell having an engraftment ability to a host gonad; using the antibody, separating and concentrating spermatogonia having an engraftment ability to a host gonad from the separated fish-derived germ cells to be used in the intraperitoneal transplantation into the host fish; and intraperitoneally transplanting the separated germ cells into the host fish before or after hatching to thereby improve the engraftment ability of the germ cells to the host fish gonad and induce the differentiation of the separated germ cells into the germline.

IPC Classes  ?

• C12N 5/076 - Sperm cellsSpermatogonia
• C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
• C12N 5/075 - OocytesOogonia
• A01K 67/02 - Breeding vertebrates
• C12P 21/08 - Monoclonal antibodies

Abstract

In this water-containing fluid composition, which includes a processed lysozyme and/or salt thereof, the fluorescence intensity defined below is 5,000 or more, and the processed lysozyme and/or salt thereof is dissolved into the water-containing fluid composition while being in contact with a polar organic solvent, wherein the content of the polar organic solvent in the water-containing fluid composition is 55-90 mass%, inclusive. Fluorescence intensity: Fluorescence intensity obtained by measuring, under the conditions of an excitation wavelength of 390 nm (excitation bandwidth of 10 nm) and a fluorescence wavelength of 470 nm (fluorescence bandwidth of 10 nm), a solution obtained by reacting, for 30 minutes at room temperature, a solution obtained by adding 25 µL of an 8 mM 1,8-anilinonaphthalene sulfonate methanol solution to 5 mL of a dilute solution obtained by diluting the water-containing fluid composition with a phosphate buffer solution (pH 7.0) such that the concentration of the processed lysozyme and/or salt thereof is 0.05 mass% in terms of solid content and the phosphate concentration is 0.2M

IPC Classes  ?

• A01N 63/00 - Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
• A01N 25/02 - Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of applicationSubstances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
• A01N 25/22 - Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of applicationSubstances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
• A01P 1/00 - DisinfectantsAntimicrobial compounds or mixtures thereof
• A23L 3/3571 - Microorganisms; Enzymes
• A61K 9/10 - DispersionsEmulsions
• A61K 9/12 - AerosolsFoams
• A61K 35/54 - OvariesOvaOvulesEmbryosFoetal cellsGerm cells
• A61K 38/46 - Hydrolases (3)
• A61K 47/04 - Non-metalsCompounds thereof
• A61K 47/10 - AlcoholsPhenolsSalts thereof, e.g. glycerolPolyethylene glycols [PEG]PoloxamersPEG/POE alkyl ethers
• A61P 31/04 - Antibacterial agents
• A61P 31/12 - Antivirals
• A61P 31/14 - Antivirals for RNA viruses
• C12N 9/36 - Hydrolases (3.) acting on glycosyl compounds (3.2) acting on beta-1, 4 bonds between N-acetylmuramic acid and 2-acetylamino 2-deoxy-D-glucose, e.g. lysozyme

Abstract

　There is readied a radial gap-type superconducting synchronous machine (1) in which a rotor (20) has convex-shaped magnetic poles (21) on the outer periphery side, the distal end part of the magnetic poles (21) has a bulk superconductor (30), the bulk superconductors (30) are disposed so that the magnetic-pole-center-section side is nearer a stator (10) than the end-section sides as viewed in the direction of the axis of rotation (C1) of the rotor (20), and a ferromagnetic body (28) is disposed on the side of the bulk superconductors (30) towards the axis of rotation (C1) of the rotor (20). A magnetization device (100) is disposed on the bulk superconductor (30) radially outward with respect to the rotor (20). Magnetization is performed through directing the magnetic lines of flux from the magnetization device (100) towards the bulk superconductor (30).

IPC Classes  ?

• H02K 55/02 - Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type
• H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

Abstract

The present invention addresses the problem of providing a method for producing fish gametes in techniques of farmed fish production using a surrogate parent fish, said method being applicable to a surrogate parent fish of a different species and thus broadening the scope of fish species usable as the surrogate parent fish. To solve this problem, provided is a method for producing fish gametes using a surrogate parent fish, said method comprising: hybridizing a first fish, which can serve as a surrogate parent fish for a donor fish, with a second fish, which cannot serve as a surrogate parent fish for the donor fish, to construct a hybrid fish capable of serving as a surrogate parent fish for the donor fish; and, using the hybrid fish thus constructed as a recipient, transplanting separated germ cells of the donor fish thereinto and thus inducing differentiation to a germ cell line.

IPC Classes  ?

• A01K 67/02 - Breeding vertebrates
• A01K 61/00 - Culture of aquatic animals
• C12N 15/09 - Recombinant DNA-technology

Abstract

　Provided is a rollover danger warning device that can notify in real time during travel that a vehicle is in danger of rolling over, without requiring advance input of the radius of a curved road. The rollover danger warning device is provided with a first acceleration sensor (11) for detecting external force acting vertically on the vehicle body, an angular velocity sensor (12) for detecting rotation of the vehicle body centered around a vehicle wheel (6), and a second acceleration sensor (13) which is a left-right-direction physical quantity detection means for detecting external force acting on the vehicle from the left or right; a calculation unit (21) uses the detection results of the first acceleration sensor (11) and the angular velocity sensor (12) to calculate a limit index at which the vehicle (1) will roll over, uses the detection result of the second acceleration sensor (13) to calculate in real time a contrast index to be contrasted with the limit index, and uses the limit index and the contrast index to output rollover danger warning information notifying of the danger of rollover from a notification unit (24).

IPC Classes  ?

• B60R 21/0132 - Electrical circuits for triggering safety arrangements in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters
• B63B 43/00 - Improving safety of vessels, e.g. damage control, not otherwise provided for
• G01M 1/12 - Static balancingDetermining position of centre of gravity

Abstract

The present invention addresses the problem of reducing increases in fat content ratio due to culturing and increases in fat content ratio due to species of fish when rearing cultured fish or natural fish that have been caught, and of providing reared fish which have good flavor and texture and in which excessive lipid content is reduced without impacting the weight of the fish. During a pre-shipment rearing period of cultured fish or natural fish that have been caught, the lipid content of reared fish is reduced by rearing the fish using a feedstuff for fish lipid reduction, wherein, of the essential amino acids in a fish rearing feedstuff that is made to contain a required amount of essential amino acids that are necessary for growth depending on the species of fish, an excess content of lysine, said content being the same or more than the required amount of amino acids that are necessary for growth, is mixed into the feedstuff. Reared fish which have good flavor and texture and in which excessive lipid content is reduced are provided by applying the abovementioned method to a method for reducing increases in fat content ratio due to culturing and increases in fat content ratio due to species of fish when rearing cultured fish or natural fish that have been caught, and by rearing fish using the feedstuff for fish lipid reduction for a short period of time during the pre-shipment rearing period.

IPC Classes  ?

• A23K 1/18 - specially adapted for particular animals
• A23K 1/16 - supplemented with accessory food factors; Salt blocks

Abstract

A norovirus inactivator comprises at least one lysozyme component selected from a lysozyme and/or a salt thereof and a modified product of the lysozyme and/or the salt.

IPC Classes  ?

• A61K 38/46 - Hydrolases (3)
• A61K 31/045 - Hydroxy compounds, e.g. alcoholsSalts thereof, e.g. alcoholates
• A61K 31/047 - Hydroxy compounds, e.g. alcoholsSalts thereof, e.g. alcoholates having two or more hydroxy groups, e.g. sorbitol
• A61P 31/14 - Antivirals for RNA viruses

Abstract

Superconducting field poles each include a superconducting coil body formed by spirally winding a superconducting wire material, a ferromagnetic outer magnetic field-deflecting member arranged on an end face of the superconducting coil body at a radially outer side of a rotor, and a ferromagnetic inner magnetic field-deflecting member arranged on an end face of the superconducting coil body at a radially inner side of the rotor.

IPC Classes  ?

• H02K 55/04 - Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings
• H02K 1/24 - Rotor cores with salient poles
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
• H02K 3/18 - Windings for salient poles

Abstract

Provided is a capsize risk level calculation system which can calculate a capsize risk level providing an index of the capsize risk on an oscillation of hull without using hull information. This system includes an acceleration sensor detecting a reciprocating motion in an up-down direction of a vessel as an oscillation in an up-down direction of a virtual oscillation center axis; an angular velocity sensor detecting a simple pendulum motion in a rolling direction around the vessel center axis as a simple pendulum motion of the vessel COG around the oscillation center axis; and an arithmetic part calculating a capsize risk level from an oscillation radius connecting between the oscillation center axis and the vessel COG, and a capsize limit oscillation radius connecting between the oscillation center axis and the vessel metacenter, which are obtained on the results of detection by the acceleration sensor and the angular velocity sensor.

IPC Classes  ?

• B63B 3/00 - Hulls characterised by their structure or component parts
• G01C 21/00 - NavigationNavigational instruments not provided for in groups
• B63B 39/14 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude for indicating inclination or duration of roll
• G01B 21/00 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant

Abstract

Provided is a loading weight detection device which is applicable to a wide variety of mobile objects and is able to accurately detect a loading weight with a smaller number of input variables. A loading weight detection device is provided with: a touch panel (33) which accepts inputs of a tare (ma) and an initial setting freight weight (mb0); a shaking detection unit (20) which detects the shaking of a freight vehicle; a computing unit (31) which functions as a natural vibration specification means for specifying, as a pitching natural vibration value, natural vibration in an empty weight direction on the basis of shaking data detected by the shaking detection unit (20); and a storage unit (32) which stores, as initial setting data, the tare (ma) and the initial setting freight weight (mb0) together with the pitching natural vibration value specified by the computing unit (31) in a state where the freight vehicle is loaded with freight with the initial setting freight weight (mb0), and the computing unit (31) computes a total weight (M) on the basis of the specified pitching natural vibration value and the initial setting data.

IPC Classes  ?

• G01G 19/03 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
• G01G 19/08 - Weighing apparatus or methods adapted for special purposes not provided for in groups for incorporation in vehicles

Abstract

[Problem] To provide an underwater communication system capable of extending the communicable distance of radio wave communication in water or in the sea. [Solution] An underwater communication system (1) according to an embodiment is provided with: a hermetically sealed structure (2) having an outer shell (2a) of watertight structure, the hermetically sealed structure (2) being disposed under water when in use; a non-conductive transmission medium (3) one end of which is in contact with the outside of the outer shell (2a) and at least part of which is disposed under water when in use; transmission/reception means (11) for transmitting/receiving a radio wave via the one end of the transmission medium (3), the transmission/reception means (11) being accommodated inside the outer shell (2a) of the hermetically sealed structure (2); and transmission/reception means (12) for transmitting/receiving the radio wave via the other end of the transmission medium (3); the outer circumference of the transmission medium (3), excluding contact surfaces between the transmission medium (3) and the outer shell (2a), being covered with a radio-wave-leakage prevention member (4) for reflecting the radio wave.

IPC Classes  ?

• H04B 13/00 - Transmission systems characterised by the medium used for transmission, not provided for in groups

Abstract

Provided is a lateral rollover limit detection system which can determine the lateral rollover danger of a structure for which the weight or the weight distribution has not been clarified. A placement board, springs, and detection object are provided as a structure in which the placement board is supported with springs on both sides of an oscillation central axis with an acceleration sensor for detecting the reciprocating motion in an up-down direction of the placement board, and an arithmetic part which, on the basis of the inclination angle of the placement board in a direction of rotation around the oscillation central axis with respect to the horizontal plane in a standstill state of the detection object and the detection result by the acceleration sensor, calculates a limit center-of-gravity height beyond which the detection object is rolled over for a center-of-gravity location on the placement board of the structure being provided.

IPC Classes  ?

• G01M 1/00 - Testing static or dynamic balance of machines or structures
• G01M 1/12 - Static balancingDetermining position of centre of gravity
• G01M 17/06 - Steering behaviourRolling behaviour
• B60W 40/13 - Load or weight

Abstract

The invention addresses the problem of providing farmed fish or caught wild fish which are in a "fatty" state in which the intramuscular lipid content in the fish is increased and the taste and texture are improved when the farmed fish or the caught wild fish are shipped out, and also providing a fish-rearing feed therefor. The problem is solved by: preparing a fish-rearing feed for increasing the intramuscular lipid content in fish, the fish-rearing feed containing the required amount of essential amino acids deemed necessary for fish to grow, the fish-rearing feed being prepared by using essential amino acids other than lysine to satisfy the required amount of amino acids needed for fish growth, and adjusting the amount of lysine, as an essential amino acid, contained in the feed so that the lysine content is at or below the required amount of essential amino acids needed for growth; using the fish-rearing feed, administering the fish-rearing feed for a period of two to seven days before shipment, and rearing the farmed fish during the rearing period before shipment of the farmed fish to increase the intramuscular lipid content of the farmed fish; and providing the farmed fish in a "fatty state."

IPC Classes  ?

• A23K 1/18 - specially adapted for particular animals
• A01K 61/00 - Culture of aquatic animals
• A23K 1/16 - supplemented with accessory food factors; Salt blocks

Abstract

There is provided a highly versatile center-of-gravity detecting system which can accurately detect the center of gravity of not only a container cargo vehicle but also various detection objects. It has a placement board for placing a detection object thereon; springs for supporting the placement board with an elastic force; an acceleration sensor for detecting a reciprocating motion of the detection object in an up-down direction; an angular velocity sensor for detecting a simple pendulum motion of the detection object around a roll direction oscillation central axis; and an X-axis restriction guide part for restricting a movement of the placement board in an X-axis direction, a data processing apparatus calculating a center-of-gravity height in the up-down direction from the roll direction oscillation central axis to the center of gravity of the detection object on the basis of the detection results by the acceleration sensor and the angular velocity sensor.

IPC Classes  ?

• G01M 1/00 - Testing static or dynamic balance of machines or structures
• G01M 1/22 - Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables

Abstract

Superconducting field-pole magnets (28a to 28c) have: a superconducting coil body (27) obtained by helically winding a superconducting wire material; a ferromagnetic outer-side magnetic field-deflecting member (60) disposed on an end face on the outer side of a rotor of the superconducting coil body in the radial direction; and a ferromagnetic inner-side magnetic field-defecting member (50) disposed on an end face on the inner side of a rotor of the superconducting coil body in the radial direction.

IPC Classes  ?

• H02K 55/04 - Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings

Abstract

[Problem] To objectively ascertain the relationship between differences in the hypoxia tolerance of flounder and genetic factors, and using this lineage of fish, to develop a DNA marker associated with the appearance source of the hypoxia tolerance by quantitative trait analysis (QTL method) of hypoxia tolerance, and develop a method for identifying hypoxia-tolerant flounder using this marker. [Solution] A method for identifying whether flounder is hypoxia-tolerant, the method comprising a step for amplifying a sequence that includes a microsatellite sequence that is the sequence of a microsatellite region, or a portion thereof, of the following a) or b) of DNA extracted from the flounder, the eggs thereof, or a processed product of the same. a) 809th through 1158th bases of base sequence No. 1 and b) 507th through 788th bases of base sequence No. 1.

IPC Classes  ?

• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving nucleic acids
• C12N 15/09 - Recombinant DNA-technology

Abstract

Provided is a DNA vaccine for use in fish which induces protective immunity against pseudotuberculosis. As the active component, this DNA vaccine contains DNA containing a nucleotide sequence that encodes a polypeptide that is immunogenic against Photobacterium damselae subsp. piscicida, or contains an expression vector containing said DNA.

IPC Classes  ?

• A61K 39/00 - Medicinal preparations containing antigens or antibodies
• A61K 39/02 - Bacterial antigens
• A61P 31/04 - Antibacterial agents
• C12N 15/09 - Recombinant DNA-technology

Abstract

A method for coating the surface of a substrate in which coating layers (3a1, 3a2) are formed on the surface of a substrate (W), wherein the annular distal-end surface of a coating material (2) formed to a cylindrical shape is brought into contact with the substrate (W), and the coating material (2) is moved relative to the surface of the substrate (W) while being caused to rotate, whereby the material constituting the coating material (2) is transferred onto the surface of the substrate (W) and the coating layers (3a1, 3a2) are formed. A coating process can thereby be performed on the substrate surface in an efficient manner. In addition, properties of the surface of the substrate (W) such as friction wear properties can be improved in an effective manner depending on the material constituting the coating material (2).

IPC Classes  ?

• B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
• C23C 26/00 - Coating not provided for in groups

Abstract

The present invention relates to a surface modification method for carbon steel, by which surface modified steel having both corrosion resistance and abrasion resistance in seawater is obtained. A surface modification method for carbon steel, wherein processing for embedding hard powder harder than a round shaft of the carbon steel in the surface of the round shaft of the carbon steel is performed by rotating the round shaft, bringing the tip of a tool into contact with the outer peripheral surface of the round shaft, relatively moving the round shaft and the tool in the axial direction of the round shaft while rotating the tool, and supplying the hard powder into a contact portion between the round shaft and the tool, processing for embedding metal in the surface of the round shaft is performed by rotating the round shaft in which the hard powder is embedded, bringing the tip of a pin containing metal having a higher ionization tendency than the carbon steel into contact with the outer peripheral surface of the round shaft, and relatively moving the round shaft and the pin in the axial direction of the round shaft while rotating the pin, and thereby a hard film and a metal film coexist on the surface of the round shaft.

IPC Classes  ?

• C23C 24/06 - Compressing powdered coating material, e.g. by milling
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
• B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
• C23C 26/00 - Coating not provided for in groups

Abstract

The present invention provides an overturn risk calculation system capable of calculating a degree of risk of overturning that represents an index of an overturn risk on the basis of hull oscillation without the use of hull information. The present invention is provided with: an acceleration sensor for detecting vertical reciprocal motion of a boat (7) as vertical oscillation about a virtual-oscillation center axis (O); an angle speed sensor for detecting a simple pendulum motion in a rolling direction relative to the center axis of the boat (7) as a simple pendulum motion relative to the oscillation center axis (O) of the center of gravity (G) of the boat (7); and a calculating unit for calculating the oscillation radius (1) connecting the oscillation center axis (O) and the center of gravity (G) of the boat (7), and an overturn limit oscillation radius Lmax connecting the oscillation center axis (O) and a metacenter (M) of the boat 7, both radii being obtained on the basis of the detection results obtained from the acceleration sensor (4) and the angle speed sensor (5).

IPC Classes  ?

• B63B 43/02 - Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
• B63B 39/14 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude for indicating inclination or duration of roll
• B63B 49/00 - Arrangements of nautical instruments or navigational aids

Abstract

Within surrogate parent fish farming and the like where host fish are used, separated germ cells of a different lineage or different species than the host fish are transplanted into the host fish, and differentiation into a germline is induced, the present invention addresses the problem of providing a method for improving the ability to implant the transplanted separated germ cells into host gonads and increasing the transplantation efficiency in inducing differentiation into a germline by transplanting the separated germ cells. To solve this problem, a method for inducing, into a germline, separated germ cells obtained by transplanting fish-derived separated germ cells into a host fish individual by transplantation into the abdominal cavity of a peri-hatching host fish comprises rearing the host fish individual having undergone transplantation at a lower water temperature than a host rearing water temperature prior to transplantation, the temperature also having no adverse impact on the survival and development of the host fish individual, for a length of time needed for the separated germ cells having been transplanted into the abdominal cavity of the host fish to move to and be implanted in the host fish gonads, thereby improving the ability to implant the separated germ cells into the host fish gonads and increasing the transplantation efficiency in inducing differentiation into a germline by transplanting the separated germ cells.

IPC Classes  ?

• A01K 67/027 - New or modified breeds of vertebrates
• A01K 67/00 - Rearing or breeding animals, not otherwise provided forNew or modified breeds of animals
• C12N 5/076 - Sperm cellsSpermatogonia

Abstract

[Aim] Provided are a high-efficiency and energy loss-free controller for a ship propulsion device and a ship propulsion system that allow a ship to move forward and turn at a minimum speed during low-speed operation only with a forward thrust component. [Solution] A controller (5) for a ship propulsion device comprises: a processor (7) which controls processing of the entire controller; a motion curve table (8) which accommodates a dimension-less motion curve of a propeller or an impeller (2); control factor setting means (9) which sets a control factor of the motion curve; velocity command cycle interval determination means (10) which determines a command cycle interval of a rotational speed of the impeller; velocity command value calculation means (11) which calculates a command value of the rotational speed of the impeller at each command cycle interval; and velocity command output means (12) which outputs a velocity command with respect to propulsion device driving means in order to match the command value of the rotational speed of the impeller calculated by the velocity command value calculation means (11).

IPC Classes  ?

• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
• B63H 5/07 - Arrangements on vessels of propulsion elements directly acting on water of propellers
• B63H 11/08 - Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
• B63H 21/21 - Control means for engine or transmission, specially adapted for use on marine vessels

Abstract

Provided is a rollover limit detection system that makes it possible to determine the risk of rollover of a structure for which the weight or weight distribution is not known in advance, the determination being made on the basis of a rollover limit height calculated by calculating as the rollover limit height the height of a limiting center of gravity at which the structure would roll over. The present invention is provided with: an acceleration sensor (13) for detecting upward and downward reciprocating motion of a loading plate (10), the mounting plate (10), springs (12), and a detection target (40) being configured so that the areas of the mounting plate (10) on both sides of a rocking central shaft (16) are each supported by the springs (12); and is also provided with a computation unit (31) for calculating as a rollover limit height lmax the height of a limiting center of gravity at which the detection target (40) mounted on the mounting plate (10) would roll over in the direction of rotation at a center-of-gravity position on the mounting plate (10) of the structure, the calculation being made on the basis of the detection result from the acceleration sensor (13) and an angle of incline (α) in the direction of rotation about the rocking central shaft (16) of the mounting plate (10) with respect to the horizontal plane when the detection target (40) is at rest.

IPC Classes  ?

• G01M 1/12 - Static balancingDetermining position of centre of gravity

Abstract

A center-of-gravity detecting system includes a motion detector for detecting a vertical motion of a travelling object and a horizontal motion of the travelling object, and an arithmetic unit that calculates a center-of-gravity location of the travelling object using the frequency of a vertical motion of the travelling object, a frequency of the horizontal motion of the travelling object, a central angle of the horizontal motion of the travelling object, and the width of the traveling object. The arithmetic unit calculates a center-of-gravity location, using the frequency of the vertical motion, a frequency of the horizontal motion, the center-of-gravity location, and the length of the travelling object in the travel direction.

IPC Classes  ?

• G01M 1/12 - Static balancingDetermining position of centre of gravity
• G01C 15/00 - Surveying instruments or accessories not provided for in groups
• G01M 1/10 - Determining the moment of inertia
• B60W 40/13 - Load or weight
• G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions
• B60T 8/172 - Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
• B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit

Abstract

Provided is a highly versatile center-of-gravity detection system capable of accurately detecting the center of gravity of various detection subjects without being limited by a container freight car. The present invention is provided with a loading plate (10) on which a detection subject (40) is loaded, springs (12) having elastic force for supporting the loading plate (10), an acceleration sensor for detecting reciprocal movement of the detection subject (40) in the vertical direction, an angular velocity sensor for detecting simple pendulum movement of the detection subject (40) about a rolling-direction oscillation axis (16), and an X-axis restricting guide (21) for restricting movement of the loading plate (10) in the X-axis direction, and the height of the center of gravity from the rolling-direction oscillation axis (16) to the detection subject (40) in the vertical direction is computed by a data processing device (3) on the basis of the detection results of the acceleration sensor (13) and the angular velocity sensor (14).

IPC Classes  ?

• G01M 1/12 - Static balancingDetermining position of centre of gravity

Abstract

[Problem] To provide an underwater communication system the purpose of which is underwater activity and for which there are no holes in an outer shell of a sealed structural body. [Solution] In the present invention the following are provided: a sealed structural body (2) having an outer shell (5) of a watertight structure to be disposed underwater; a transmission means (9) disposed inside of the sealed structural body (2) and capable of wireless transmission; a non-conductive transfer medium (4) one end of which is in contact with the outside of the outer shell (5) of the watertight structure, without making a hole in such outer shell; and a reception means (10) that wirelessly transmits an electric signal from the transmission means (9), and receives the electric signal from the other end of the transfer medium (4) that is far from the outer shell (5).

IPC Classes  ?

• H04B 13/00 - Transmission systems characterised by the medium used for transmission, not provided for in groups

Abstract

An inclination angle calculation device comprises a motion detector for detecting motions of a traveling object during travel, in two directions included in a cross-section surface of the traveling object, the two directions being orthogonal with each other; and an arithmetic unit for calculating an inclination angle of the traveling object during travel in the cross-section surface, using a frequency of the motion in one of the two directions and a rolling frequency in the other direction of the two directions.

IPC Classes  ?

• G01C 9/02 - Measuring inclination, e.g. by clinometers, by levels Details
• G06F 15/00 - Digital computers in generalData processing equipment in general
• G01C 9/06 - Electric or photoelectric indication or reading means
• B60W 40/112 - Roll movement
• B60W 40/12 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to parameters of the vehicle itself
• B60W 30/04 - Control of vehicle driving stability related to roll-over prevention
• G01M 1/12 - Static balancingDetermining position of centre of gravity

Abstract

A joint includes a housing and a refrigerant tube connected to a refrigerant source and communicated with a target part in a rotating machine. A rotating member is loosely fitted inside with the refrigerant tube and fixed to a rotary part of the rotating machine. A relatively rotating member has a fixed-side member and rotating-side member. The fixed-side member is connected to the refrigerant tube via a refrigerant tube extension section. The rotating-side member is connected to the rotating member via a rotating member extension section. A refrigerant zone is formed by spaces defined between the refrigerant tube and the rotating member, and between the refrigerant tube and rotating member extension sections. A sealing member is installed between the fixed-side and rotating-side members. A vacuum chamber and pressure chamber are defined within the housing.

IPC Classes  ?

• F16L 27/00 - Adjustable jointsJoints allowing movement

Abstract

The present invention provides a method for producing a composition containing 2-acyl-lysophosphatidylserine, the method comprising: (a) a step for obtaining a composition containing phosphatidylserine by causing phospholipase D to act on a starting material containing phosphatidylcholine while in the presence of serine; and (b) a step for obtaining a composition containing 2-acyl-lysophosphatidylserine by causing phospholipase A1 to act on the composition containing phosphatidylserine while in the presence of at least one type of additive selected from a group consisting of (I), (II), and (III). (I) represents at least one monovalent cationic salt selected from a group consisting of sulfates, phosphates, nitrates, citrates and tartrates, (II) represents a gum, and (III) represents an emulsifier.

IPC Classes  ?

• C12P 7/64 - FatsFatty oilsEster-type waxesHigher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl groupOxidised oils or fats
• A61K 31/685 - Diesters of a phosphorus acid with two hydroxy compounds, e.g. phosphatidylinositols one of the hydroxy compounds having nitrogen atoms, e.g. phosphatidylserine, lecithin
• A61P 25/00 - Drugs for disorders of the nervous system

Abstract

The disclosed system and method reliably identifies multiple positioning targets underwater using a simple configuration. Provided is an underwater positioning system that can reliably identify multiple underwater positioning targets (2A-2N) using a simple configuration by acquiring agreeing detection signals (S14R, S14L), which are acquired from the transmission of ultrasonic identification data (SA-SN) generated from each of multiple ultrasonic transmitting devices (5), which are provided to the multiple underwater positioning targets (2A-2N), by a pseudo-noise signal (S3) that includes signal line (C1-C24) identification data with a logical code sequence of a designated bit number, and cross-correlating a cross-correlation standard signal (S13) and ultrasonic identification data (SA-SN) received at a central positioning device (6).

IPC Classes  ?

• G01S 3/808 - Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
• G01S 5/18 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves

Abstract

A centroid detection device (100) is provided with an oscillation detector (14) for detecting pitching in the dead weight direction during the traveling of a traveling body, and rolling in the widthwise direction during the traveling, and a computing unit (15). The computing unit (15) computes the frequency of the pitching in the dead weight direction of the traveling body, the frequency of the rolling in the widthwise direction thereof, the angle of the center of the rolling in the widthwise direction thereof, and the centroid position in the dead weight direction on a cross-sectional surface perpendicular to the traveling direction of the traveling body, and the centroid position in the widthwise direction using a width dimension. Also, the computing unit (15) computes the frequency of the pitching in the dead weight direction of the traveling body, the frequency of the rolling in the traveling direction thereof, the centroid position in the dead weight direction thereof, and the centroid position about the traveling direction of the traveling body using the length of the traveling direction thereof.

IPC Classes  ?

• G01M 1/12 - Static balancingDetermining position of centre of gravity

Abstract

The object is to provide a method for improving the engraftment ability of transplanted germ cells to the germ gland of a host and thus increasing the transplantation efficiency in transplanting the separated germ cells, in the case of, for example, farm-rising a surrogate parent, i.e., transplanting separated germ cells of a fish to a host fish and inducing the differentiation of the transplanted cells into a germ cell line. As a means for achieving the aforesaid object, disclosed is a method comprising intraperitoneally transplanting separated germ cells into a peri-hatching host fish individual, said separated germ cells being donated by a fish differing in family or species from the host fish, to thereby induce the differentiation of the separated germ cells into a germ cell line, wherein the transplanted host fish individual is raised in a temperature zone, which corresponds to the growth temperature range in the juvenile/fry stage of the fish donating the separated germ cells and in which the host fish can be raised, to thereby improve the engraftment ability of the separated germ cells to the germ gland of the host fish and increase the transplantation efficiency in transplanting the separated germ cells.

IPC Classes  ?

• C12N 5/10 - Cells modified by introduction of foreign genetic material, e.g. virus-transformed cells
• C12N 15/09 - Recombinant DNA-technology
• A01K 67/02 - Breeding vertebrates

Abstract

Disclosed is an inclination computation device (100), comprising a fluctuation sensor (14) that senses fluctuations, when a moving body is in motion, in two mutually orthogonal directions upon a cross section of the moving body wherein the two directions are present; and a computation unit (15) that employs the frequency of fluctuation in one of the two directions and the frequency of rolling in the other of the two directions to compute the inclination of the moving body when in motion upon the cross section thereof.

IPC Classes  ?

• B60W 40/12 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to parameters of the vehicle itself
• G01C 9/08 - Means for compensating acceleration forces due to movement of instrument
• G01M 1/12 - Static balancingDetermining position of centre of gravity

Abstract

Disclosed are: a medicinal agent and a method, both of which can prevent and treat the infection by a VHSV; a method for removing VHSVs from a specific water area; and a method and a kit for detecting a VHSV in a simple manner and with high sensitivity. Specifically disclosed are: a VHSV-binding aptamer which can bind to a VHSV and/or a polypeptide capable of being expressed in the virus and has an activity of preventing a host from the infection by a VHSV; and a method for detecting a VHSV and/or a polypeptide capable of being expressed in the virus, using the VHSV-binding aptamer.

IPC Classes  ?

• C12N 15/09 - Recombinant DNA-technology
• A61K 31/7088 - Compounds having three or more nucleosides or nucleotides
• A61P 31/12 - Antivirals
• G01N 33/543 - ImmunoassayBiospecific binding assayMaterials therefor with an insoluble carrier for immobilising immunochemicals
• G01N 33/569 - ImmunoassayBiospecific binding assayMaterials therefor for microorganisms, e.g. protozoa, bacteria, viruses

Abstract

A small-sized lightweight rotary joint for low-temperature application. A rotary joint for low-temperature application comprises: a housing (2); a non-rotation refrigerant pipe (3) provided within the housing (2) and having one end connected to the outside refrigerant source and the other end communicated with a portion to be cooled within a rotary machine; a rotatable rotation member (4) provided within the housing (2), having the refrigerant pipe (3) loosely inserted therethrough, and having one end affixed to the rotation section of the rotary machine; and a cylindrical relative rotation member (5) coaxial with both the refrigerant pipe (3) and the rotation member (4), having an affixed-side member (5a) affixed to the inner surface of the housing (2), and having a rotation-side member (5b) disposed so as to be rotatable inside the affixed-side member (5a). The affixed-side member (5a) is connected to the refrigerant pipe (3) through a refrigerant-pipe extension section (3a), and the rotation-side member (5b) is connected to the rotation member (4) through a rotation-member extension section (4a). The space (7) between the refrigerant pipe (3) and the rotation member (4) and the space (8) between the refrigerant-pipe extension section (3a) and the rotation-member extension section (4a) form a refrigerant region. A seal member (10) is provided between the affixed-side member (5a) and the rotation-side member (5b). A vacuum chamber and a pressure chamber are defined within the housing (2) by the peripheral wall of the refrigerant pipe (3), the refrigerant-pipe extension section (3a), and the affixed-side member (5a) of the relative rotation member (5).

IPC Classes  ?

• F16L 27/08 - Adjustable jointsJoints allowing movement allowing adjustment or movement only about the axis of one pipe
• F16C 19/08 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with two or more rows of balls
• F16J 15/43 - Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force

Abstract

Provided is a koi herpes virus-specific antigen peptide that will react with an anti-koi herpes virus antibody but will not react with anti-cyprinid herpesvirus; an anti-koi herpes virus-specific antibody that is koi herpes virus-specific but does not show crossability with cyprinid herpesvirus, and a test kit and detection kit that use this koi herpes virus-specific antigen or anti-koi herpes virus-specific antibody. A region useful as the primary antigen of koi herpes virus (KHV) was discovered from the koi herpes virus genome DNA. It was confirmed that an antibody wherein the antigen is this region does not display crossability with cyprinid herpesvirus (CHV), but has high koi herpes virus (KHV) detection sensitivity.

IPC Classes  ?

• C07K 14/03 - Herpetoviridae, e.g. pseudorabies virus
• C07K 16/08 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from viruses
• G01N 33/569 - ImmunoassayBiospecific binding assayMaterials therefor for microorganisms, e.g. protozoa, bacteria, viruses

Abstract

Genomic DNA from a yellowtail is subjected to a PCR method or a nucleic acid amplification reaction method using an yellowtail-derived nucleic acid as a template, wherein the PCR method or the nucleic acid amplification reaction method is carried out using, as primers, oligonucleotides comprising the nucleotide sequences: 5'-TTTCATTGTGGCGCTCAG-3' and 5'-GGTTGTAATGTGTCCCAG-3' both of which are produced based on a gene marker for genetic linkage group (LG) 12 in an yellowtail genetic linkage map. A product of the method is subjected to a gel electrophoresis method to analyze the product. In this manner, the genetic sex of the yellowtail can be determined. This technique enables the determination of the genetic sex of an immature yellowtail with reliability without killing the yellowtail.

IPC Classes  ?

• C12N 15/09 - Recombinant DNA-technology
• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving nucleic acids

Abstract

A center-of-gravity detection system includes a vehicle capable of carrying cargo and adapted to be towed by a towing vehicle, a shake detector configured to detect shakes in the directions of the self-weight and width of the towed vehicle during travel of the towed vehicle, and an arithmetic unit. The arithmetic unit is configured to derive, based upon physical quantities that correlate with the shakes, the location of the center of gravity, in three-dimensional space, of the towed vehicle.

IPC Classes  ?

• G06F 17/10 - Complex mathematical operations

Abstract

Disclosed is a means for distinguishing between a germ cell derived from a donor (tuna) and a germ cell derived from a heterogeneous recipient fish in the tuna germ cell differentiation induction method comprising transplanting a primordial germ cell derived from tuna into an early embryo of the recipient fish. The amino acid sequence for Vasa of bluefin tuna is compared with those of other fishes (eastern little tuna, bonito, chub mackerel, southern mackerel, bullet tuna and frigate tuna), and an amino acid sequence region specific to bluefin tuna is identified. By using the amino acid sequence specific to bluefin tuna as an antigen, a monoclonal antibody capable of specifically recognizing a primordial germ cell, a spermatogonium, an oogonium or an oocyte derived from bluefin tuna can be successfully produced.

IPC Classes  ?

• C12N 15/00 - Mutation or genetic engineeringDNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purificationUse of hosts therefor
• C07K 16/18 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans
• C12N 5/10 - Cells modified by introduction of foreign genetic material, e.g. virus-transformed cells
• C12N 15/02 - Preparation of hybrid cells by fusion of two or more cells, e.g. protoplast fusion
• C12N 15/09 - Recombinant DNA-technology
• G01N 33/53 - ImmunoassayBiospecific binding assayMaterials therefor

Abstract

It is intended to provide a gene, a polynucleotide or a polypeptide which is specifically expressed in a fish immature germ cell, and an antibody binding specifically to the above-described polypeptide. It is also intended to provide a method of separating an immature germ cell from a donor fish by using the above-described antibody without resorting to transfer a marker gene such as GFP gene and a method of identifying an immature germ cell originating in a fish. Namely, use is made of a polypeptide shown by the following (A), (B), etc. or a polynucleotide, etc. encoding the same: (A) a polypeptide comprising the amino acid sequence represented by No. 1 to No. 1705 in SEQ ID NO:2; and (B) a polypeptide comprising an amino acid sequence derived from the amino acid sequence represented No. 1 to No. 1705 in SEQ ID NO:2 by substitution, deletion, insertion or addition of one to several amino acids and being specifically expressed in a fish immature germ cell.

IPC Classes  ?

• C12N 15/09 - Recombinant DNA-technology
• A01K 67/02 - Breeding vertebrates
• C07K 14/705 - ReceptorsCell surface antigensCell surface determinants
• C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
• C07K 19/00 - Hybrid peptides
• C12N 5/06 -
• G01N 33/53 - ImmunoassayBiospecific binding assayMaterials therefor

Abstract

Provided is a method whereby a polar health functional ingredient such as &ggr;-oryzanol, tocopherol or polyphenols can be purified and obtained by a practically available, convenient and effective procedure. Also provided is a health functional ingredient-containing material which is produced by the above-described method and can be effectively used. A material containing a polar health functional ingredient such as &ggr;-oryzanol, tocopherol or polyphenols is extracted with an organic solvent and the obtained extract is subjected to an adsorption treatment with the use of a dry defatted cereal bran as an adsorption carrier. Thus, a dry defatted cereal bran comprising the polar health functional ingredient such as &ggr;-oryzanol, tocopherol or polyphenols adsorbed and concentrated therein is produced. The dry defatted cereal bran, which comprises the polar health functional ingredient adsorbed and concentrated therein, or a concentrate of the health function ingredient produced by the above-described method is applicable for purposes over a broad range without any restriction in using as a material.

IPC Classes  ?

• A23L 1/30 - containing additives (A23L 1/308 takes precedence);;
• A23K 1/00 - Animal feeding-stuffs
• A23K 1/16 - supplemented with accessory food factors; Salt blocks
• A23L 1/302 - Vitamins
• A23L 2/52 - Adding ingredients

Abstract

Disclosed is an antioxidative composition which can be produced from relatively inexpensive raw materials derived from natural products, has excellent antioxidant effect on a feed raw material, and is safe and inexpensive. Specifically disclosed is an antioxidative composition for a feed raw material, which is characterized by comprising a scum produced during the process of production of a plant oil, an oil-soluble electron donor, and a plant-derived liquid oil as a viscosity-reducing agent.

IPC Classes  ?

• A23K 1/00 - Animal feeding-stuffs
• A23K 1/16 - supplemented with accessory food factors; Salt blocks

Abstract

A method of feeding shrimp larvae which comprises supplying the larvae into a feeding tank together with jellyfish parasitized thereby and then feeding the larvae in the state of being parasitic on the jellyfish. An apparatus for feeding shrimp larvae wherein a symbiotic feeding tank (1), in which the larvae are fed in the state of being parasitic on the jellyfish, and a jellyfish feeding tank (2) are connected together via a pipe (3), through which water and the jellyfish are supplied from the jellyfish feeding tank (2) to the symbiotic feeding tank (1), and the pipe (3) is provided with a switching valve (7).

IPC Classes  ?

• A01K 61/00 - Culture of aquatic animals
• A01K 63/06 - Arrangements for heating or lighting in, or attached to, receptacles for live fish

Abstract

It is intended to provide a naturally derived antioxidant having an affinity for oxidation of fats and oils containing an unsaturated fatty acid or an oxidizable substance having an unsaturated bond, a high safety, and a stable antioxidative effect. It is achieved by an antioxidant for an unsaturated fatty acid, an unsaturated fatty acid-containing fat and oil, or an oxidizable substance having an unsaturated bond containing as an antioxidative active ingredient, an emulsified product of highly polyunsaturated natural fatty acid ester having two or more hydrogen atoms at the bis-allylic position. The emulsified product of highly polyunsaturated natural fatty acid ester having two or more hydrogen atoms at the bis-allylic position such as α-linolenic acid, arachidonic acid, EPA, docosapentaenoic acid, or DHA has an antioxidative effect on an unsaturated fatty acid, an unsaturated fatty acid-containing fat and oil, or an oxidizable substance having an unsaturated bond. The antioxidant of the invention can be used as an antioxidant for a food and drink, a pharmaceutical, a cosmetic, a feed, or the like containing an unsaturated fatty acid or an oxidizable substance having an unsaturated bond.

IPC Classes  ?

• C11B 5/00 - Preserving by using additives, e.g. anti-oxidants
• A23D 9/00 - Other edible oils or fats, e.g. shortenings or cooking oils
• A23L 3/3463 - Organic compounds; Microorganisms; Enzymes
• A61K 8/37 - Esters of carboxylic acids
• C09K 15/06 - Anti-oxidant compositionsCompositions inhibiting chemical change containing organic compounds containing oxygen

Abstract

For examining whether or not a germ cell derived from a donor fish, which is transplanted into a heterogeneous recipient fish by surrogate fish technique, is grown and matured in a gonad of the recipient fish, it is required to utilize, as an indicator, a trait which is expressed specifically in the germ cell and can be used for distinguishing the recipient fish from the donor fish. Vasa gene, which is a gene specific to a germ cell, is specific to a primordial germ cell and/or a spermatogenous cell/oogonium, and the expression of Vasa gene is not observed in a somatic cell. The sequences of Vasa genes of a tuna, a chub mackerel, a spotted mackerel, an eastern little tuna and a drumfish are determined, and the expression of each of the genes is utilized as a maker for a germ cell. It is possible to detect only a tuna Vasa gene specifically from Vasa gene sequences which are highly conserved in fishes, without the need of sequencing. Therefore, it is possible to identify a tuna-derived germ cell in a gonad of a recipient fish in a simple and reliable manner. Thus, a tuna fish can be grown and bred with good efficiency. By utilizing the above-mentioned knowledge, it becomes possible to detect a germ cell derived from a donor fish from a germ cell derived from a heterogeneous recipient fish with good efficiency even when, besides a tuna fish, a fish belonging to the order Perciformes is used as a donor fish.

IPC Classes  ?

• C12N 15/09 - Recombinant DNA-technology
• C07K 14/46 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans from vertebrates
• C07K 16/18 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans
• C07K 19/00 - Hybrid peptides
• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving nucleic acids

Abstract

A PCR method is carried out on DNA from a Japanese flounder using, as primers, oligonucleotides having the following nucleotide sequences: 5'-GTGGACATTT GTACTCCACA GACCA-3' and 5'-GTGAGCGGGT ACATGTGTGT GAG-3' for Poli185TUF or oligonucleotides having the following nucleotide sequences: 5'-CCTCACAAAG ATATTTGTAC AGGTGCA-3' and 5'-CATCTTTAGG TCACATTGTC ACTGCTG-3' for Poli109TUF. The products produced by the PCR method are subjected to gel electrophoresis. A Japanese flounder which has a band at 212 bp with respect to Poli185TUF is determined to be a male, while a Japanese flounder which has a band at 144 bp with respect to Poli109TUF is determined to be a male. This method enables to determine a genetic sex of a Japanese flounder without fault prior to the sex differentiation period of the Japanese flounder.

IPC Classes  ?

• C12N 15/09 - Recombinant DNA-technology
• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving nucleic acids

Abstract

A device (100) for detecting a gravity center has vehicles (11, 12) towed by a towing vehicle and on which a cargo can be placed, a rolling detector (14) for detecting movement and rolling in the directions of the own weight and width of the vehicles (11, 12) in traveling, and a calculation unit (15). The calculation unit (15) obtains the position of the center of gravity, in a three-dimensional space, of the vehicles (11, 12) based on a physical quantity correlating with the rolling.

IPC Classes  ?

• G01M 1/12 - Static balancingDetermining position of centre of gravity
• B60R 21/00 - Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
• G01G 19/12 - Weighing apparatus or methods adapted for special purposes not provided for in groups for incorporation in vehicles having electrical weight-sensitive devices

Abstract

A superconductive rotating electric machine drive control system exhibiting a high efficiency and having a small size and a light weight and a superconductive rotating electric machine drive control method applied to the system. The superconductive rotating electric machine drive control system and method relating to a form of the invention for performing control so that the field current If2 supplied to the superconductive field wiring meets the following equation (11) (11) depending on the variation of the electric power delivered between a synchronized rotating electric machine and an electric power machine where If2 is the field current supplied to superconductive field wiring of a synchronized rotating electric machine, I is the line current, E2 is the induced electromotive force of the synchronized rotating electric machine, Vt is the terminal voltage, k4 is a constant, n2 is the number of turns of the superconductive field wiring, &ngr; is the rotational speed of the synchronized rotating electric machine, ϑ is the power factor angle, r2 is the resistance of the synchronized rotating electric machine, and 씟2 is the reactance of the synchronized rotating electric machine.

IPC Classes  ?

• H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
• B63H 19/00 - Marine propulsion not otherwise provided for
• H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode