KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kim, Myoung Jin
Lee, You Jeong
Kim, Se Hun
Shin, Seon Mi
Abrégé
Probiotics encapsulated with calcium carbonate, includes: calcium carbonate; and probiotics. The probiotics encapsulated with calcium carbonate have a particle size of 0.9 to 9.2 μm. The probiotics encapsulated with calcium carbonate have a calcium carbonate content of 17% to 98%. The probiotics encapsulated with calcium carbonate have an intestine-reaching cell count of 8 to 11 Log CFU/g. The calcium carbonate reacts with bile and is converted into hydroxyapatite.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Yoon, Sung Hwan
Park, Ju Won
Abrégé
The present invention relates to a battery fire extinguishing device which prevents, delays, or extinguishes a battery fire by applying an electric field to a battery when there is a sign of a battery fire. The present invention comprises a battery, and electrode plates formed on both poles of the battery and applying an electric field to the battery when there is a sign of a fire in the battery, and thereby, the present invention prevents, delays, or extinguishes a battery fire by applying an electric field to the battery when there is a sign of a battery fire.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Lee, Byeong Woo
Abrégé
The present invention relates to a flame-retardant sheet composition for a lithium secondary battery, characterized by delaying the spread of fire, and a flame-retardant sheet using same and, more specifically, to a sheet composition for delaying the spread of fire by controlling the temperature during thermal runaway, wherein the sheet composition includes: 20-40 parts by weight of at least one thermoplastic binder selected from polyvinyl acetate, polyvinyl alcohol, polyethylene, polyvinyl acetate-versatate, polyethylene-vinyl acetate, polyurethane, polystyrene, polyacrylate, polymethacrylate resin, polyacrylamide, and polyethylene terephthalate; 1-10 parts by weight of an organic binder; 1-5 parts by weight of a crosslinking agent; 30-50 parts by weight of an inorganic flame retardant; 10-20 parts by weight of a glass network former; 1-5 parts by weight of a plasticizer; 1-5 parts by weight of an additive; and 50-150 parts by weight of a solvent.
Korea Maritime University Industry-Academic Cooperation Foundation (République de Corée)
Inventeur(s)
Shim, Do Sik
Abrégé
A method for manufacturing a lightweight part including a porous metal matrix having a functional resin bonded thereto is disclosed. The method includes a porous metal matrix preparation step of preparing a porous metal matrix; a base layer deposition step in which while a nozzle of a FDM (Fused Deposition Modeling) 3D printer moves along a first predetermined movement coordinate path, the nozzle heats and extrudes a resin filament toward a surface of the porous metal matrix to infiltrate a molten resin into closed pores or depressions in the surface of the porous metal matrix, thereby forming a base layer bonded to the surface of the porous metal matrix; and a build layer deposition step in which while the nozzle moves along the first set movement coordinate path or a predetermined second set movement coordinate path different from the first set movement coordinate path, the nozzle heats and extrudes the resin filament toward the base layer such that one or more flat or curved build layers are deposited on the base layer, wherein the resin filament is made of a functional resin material.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29K 705/00 - Utilisation de métaux, leurs alliages ou leurs composés pour des pièces préformées, p. ex. pour des inserts
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Lee, Won Ju
Kim, Jeong Kuk
Abrégé
A ballast water tank airflow-based power generator, according to one embodiment of the present invention, comprises: an air duct which has one side, where a tank-side opening is formed, communicatively connected to a ballast water tank of a ship, and has a turbine-side opening formed in a position spaced from the tank-side opening; a turbine module which is equipped with a turbine housing and a Wells turbine, the turbine housing being detachably coupled to the air duct by means of a fastening member, and having formed therein a duct-side opening communicating with the turbine-side opening, and an inlet/outlet opening communicating with the outside, and the Wells turbine being disposed inside the turbine housing and undergoing a rotating operation on the basis of an airflow; and a generator which is connected to the turbine and carries out power generation, wherein a first coupling part and a second coupling part having an inclined female/male structure are formed in the tank-side opening of the air duct and the duct-side opening of the turbine module, thereby enabling convenient coupling and effective prevention of separation caused by vibration.
B63J 3/04 - Entraînement des auxiliaires par l'ensemble moteur autre que celui de la propulsion
B63B 73/20 - Construction ou assemblage de modules de navires préfabriqués ou de pièces autres que les sous-ensembles de coque, p. ex. de salles des moteurs, de gouvernails, d'hélices, de superstructures, de couchettes, de casiers ou de soutes
B63B 73/40 - Construction ou assemblage de navires ou de structures marines, p. ex. coques ou plateformes en pleine mer caractérisés par les procédés d’assemblage
F03D 9/32 - Mécanismes moteurs à vent spécialement adaptés à l’installation dans des endroits particuliers sur des objets mobiles, p. ex. des véhicules
F03D 80/00 - Détails, composants ou accessoires non prévus dans les groupes
6.
METHOD FOR MASS SYNTHESIS OF CARBON NANOTUBES AND CARBON NANOTUBES SYNTHESIZED THEREBY
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kang, Jun
Choi, Jae Hyuk
Lee, Won Ju
Jo, Gyu Jang
Kim, Se Hyeon
Kim, Dae Yeong
Abrégé
The present invention relates to a method for mass synthesis of carbon nanotubes and carbon nanotubes synthesized thereby and, more specifically, to a method for mass synthesis of carbon nanotubes and carbon nanotubes synthesized thereby, wherein the method enables not only the synthesis of a catalyst at a high rate through plasma generation without a separate reductant but also the continuous mass synthesis of high-purity carbon nanotubes. The technical essences of the present invention are a method for mass synthesis of carbon nanotubes and carbon nanotubes synthesized thereby, the method comprising: a first step of supplying a CNT growth material containing a carbon precursor; a second step of disposing a pair of metal wires in a solution mixed with a metal salt, and applying electric power to the metal wires to generate plasma; and a third step of thermally treating the CNT growth material and the catalyst.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Yoon, Sung Hwan
Park, Ju Won
Abrégé
The present invention relates to a battery fire extinguishing device which prevents, delays, or extinguishes a battery fire by applying an electric field to a battery when there is a sign of a battery fire. The present invention comprises a battery, and electrode plates formed on both poles of the battery and applying an electric field to the battery when there is a sign of a fire in the battery, and thereby, the present invention prevents, delays, or extinguishes a battery fire by applying an electric field to the battery when there is a sign of a battery fire.
H01M 50/691 - Dispositions ou procédés pour le drainage des liquides des boîtiersNettoyage des boîtiers de la batterie ou de la cellule
A62C 3/16 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les installations électriques, p. ex. chemins de câbles
A62C 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
8.
PROBIOTICS ENCAPSULATED WITH CALCIUM CARBONATE AND METHOD FOR PREPARING SAME
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kim, Myoung Jin
Lee, You Jeong
Kim, Se Hun
Shin, Seon Mi
Abrégé
The present invention relates to probiotics encapsulated with calcium carbonate and a method for preparing same. More specifically, the present invention relates to: probiotics encapsulated with calcium carbonate that improve an intestinal reach rate, probiotic stability during freeze-drying, and storage stability by encapsulating probiotics with calcium carbonate; and a method for preparing same.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kim, Myoung Jin
Abrégé
A method for recovering high-purity magnesium sulfate includes: a pre-precipitation step of mixing an alkali precipitant and seawater; a concentration step of reacting a precipitate formed in the pre-precipitation step with sulfuric acid, followed by filtering to obtain a first eluate; a first precipitation step of adding ethanol to the first eluate, and then removing a first precipitated solid to obtain a second eluate; and a second precipitation step of precipitating magnesium sulfate solid by further adding ethanol to the second eluate from which the first precipitated solid has been removed.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
BORGEN SC CORP. (République de Corée)
Inventeur(s)
Lee, Seojeong
Lee, Changui
Abrégé
Provided is a method for identifying and evaluating a hazard that may occur when artificial intelligence is applied to a marine field system. The method of the present invention comprises: an expected hazard defining step for a marine AI system; a hazard factor selecting step for schematizing a control structure of the marine field system, displaying a list of hazard factor candidates, and generating and storing a list of selected hazard factor candidates upon selection from a user; an unsafe action analyzing step for defining an unsafe action (UA), receiving, from the user, an input of a cause of the unsafe action (UA), and storing same; a hazard level evaluating step for calculating a degree of hazard and a hazard level on the basis of a degree of damage effect and occurrence likelihood for each unsafe action, receiving an input of safety requirements, and storing same; and a report generating step for generating a report on the basis of pieces of data from the above steps.
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
11.
ALUMINUM ALLOY WITH REDUCED RESIDUAL STRESS, AND MANUFACTURING METHOD THEREFOR
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Lee, Eun Kyung
Moon, Gi Hoon
Lee, Jun Yeop
Abrégé
The present invention relates to an aluminum alloy with reduced residual stress, and provides an aluminum alloy which is an Al-Cu alloy containing a transition metal, and which has, during post-solution-annealing quenching, residual stress lower than that of an Al-Cu alloy containing no transition metals. The alloy of the present invention can inhibit dimensional deformation and damage, which can be caused by residual stress.
C22C 21/12 - Alliages à base d'aluminium avec le cuivre comme second constituant majeur
C22F 1/057 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages d'alliages avec le cuivre comme second constituant majeur
B22D 21/00 - Coulée de métaux non ferreux ou de composés métalliques, dans la mesure où leurs propriétés métallurgiques affectent le procédé de couléeUtilisation de compositions appropriées
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Jeon, Yongseok
Jung, Jong Min
Abrégé
The present invention relates to a battery module comprising a three-dimensional pulsating heat pipe. Such battery module comprising a three-dimensional pulsating heat pipe comprises pulsating heat pipes which are each disposed in respective spaces between a plurality of battery cells and which each comprise a plurality of heat pipes connected so as to communicate with each other. Thus a dry-out phenomenon resulting from the evaporation of a working fluid may be prevented.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kim, Myoung Jin
Kim, Geun Young
Kim, Se Hun
Shin, Seon Mi
Abrégé
There is provided a method for producing calcium carbonate by utilizing seawater and calcinated shells, and calcium carbonate and a calcium agent produced thereby. The method for producing calcium carbonate includes: eluting calcium by mixing calcinated shells, seawater, and sugar; and generating calcium carbonate by injecting carbon dioxide into the calcium eluate generated in the eluting calcium. The calcium agent includes vaterite-type calcium carbonate.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Choi, Hyeung Sik
Abrégé
There is provided a solar power generator having a variable shape which can secure a maximum solar power generation area by being unfolded horizontally and upward in the case of performing solar power generation and can be transformed to have a minimum volume by being transformed into a box shape in the case of not performing solar power generation. The solar power generator includes a base frame, four solar panel members for forming a box which are respectively coupled to four sides of the base frame, a rotation drive source for rotating each of the four solar panel members, a tube member, a lower surface of which is fixed to a center portion of an upper surface of the base frame, an air injection and discharge part, a top plate for the tube member, and a plurality of solar panel assemblies for tube member sidewalls.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Doh, Deog-Hee
Kim, Ue Kan
Abrégé
Provided are a floating bunkering station and method for producing, storing and supplying an environment-friendly fuel. A floating bunkering station for producing, storing and supplying an environment-friendly fuel according to one embodiment may comprise: a floating body floating offshore; LNG/LPG, ammonia, methanol and ethanol storage and supply units installed on the floating body and for storing and supplying LNG or LPG, ammonia, methanol and ethanol received from LNG or LPG, ammonia, methanol and ethanol carriers or an environment-friendly fuel conversion unit; a hydrogen storage and supply unit installed on the floating body and for storing and supplying hydrogen received from at least one from among a hydrogen carrier, the environment-friendly fuel conversion unit, and a hydrogen production unit; and the environment-friendly fuel conversion unit for collecting the generated LNG or LPG and supplying same to the LNG/LPG storage and supply unit, reacting methane or carbon monoxide received from the LNG/LPG storage and supply unit with water to produce hydrogen, and transferring the produced hydrogen to the hydrogen storage and supply unit. In addition, the present invention generates ammonia by means of a chemical combination of hydrogen and nitrogen, and, conversely, may isolate hydrogen from ammonia. In addition, the present invention may collect and store hydrogen by cooling LNG.
B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p. ex. portant des appareils séparateurs huile-eau
B63B 25/16 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
C01B 3/12 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés inorganiques comportant un hydrogène lié électropositivement, p. ex. de l'eau, des acides, des bases, de l'ammoniac, avec des agents réducteurs inorganiques par réaction de la vapeur d'eau avec l'oxyde de carbone
C01B 3/34 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants
C01B 3/04 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés inorganiques, p. ex. de l'ammoniac
KOREA MARITIME UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Oh, Jin Seok
Abrégé
A load area tracking type ship battery management system is proposed. The ship battery management system includes a calculation unit for generating SFOC curve data periodically by calculating specific fuel oil consumption (SFOC) versus ship load factors, a LF setting unit for specifying a ship load factor point as a light load factor (LF) point in the SFOC curve data, a HF setting unit for specifying a ship load factor point as a heavy load factor (HF) point, a Emax setting unit configured to obtain a highest point (Emax) of generator efficiency, a Rmin setting unit for calculating battery charging efficiency in the LF to obtain a smallest load factor point (Rmin) bearing a generator load by battery charging, and a Rmax setting unit for calculating battery charging efficiency in the HF to obtain a highest load factor point (Rmax) bearing the generator load by battery discharging.
B63B 79/40 - Surveillance des caractéristiques ou des paramètres de fonctionnement des navires en opération pour le suivi des operations des navires, p. ex. le suivi de leur vitesse, de leur itinéraire ou de leur calendrier d’entretien
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
17.
METHOD FOR MANUFACTURING LIGHTWEIGHT COMPONENT HAVING POROUS METAL COMBINED WITH NON-POROUS METAL
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Shim, Do-Sik
Park, Han-Byeol
Abrégé
A method for manufacturing a lightweight component is disclosed. The method for manufacturing a lightweight component comprises: a first step of planarizing the surface of a porous metal base material by placing a metal plate on the surface of the porous metal base material; a second step of simultaneously irradiating a laser beam on the metal plate and supplying metal powder while linearly moving a nozzle of a directed energy deposition (DED) apparatus in one direction, wherein the linear movement is repeated while the laser beam is irradiated at an output capable of melting the base material, the metal plate, and the metal powder to form multiple rows of molten pools which overlap one another on the surface of the porous metal base material; and a third step in which the multiple rows of molten pools rapidly coagulate in sequences such that metal layers are deposited on the surface of the porous metal base material.
B22F 10/25 - Dépôt direct de particules métalliques, p. ex. dépôt direct de métal [DMD] ou mise en forme par laser [LENS]
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p. ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p. ex. du débit ou de la direction
B22F 10/47 - Structures destinées à soutenir des pièces ou des articles pendant la fabrication et retirées par la suite caractérisées par des caractéristiques structurelles
B22F 7/00 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage
B22F 7/02 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de couches successives
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kim, Myoung Jin
Abrégé
Disclosed is a method for recovering high-purity magnesium sulfate, in which ethanol is added twice to seawater to separate calcium and magnesium. The method for recovering high-purity magnesium sulfate comprises: a pre-precipitation step of mixing an alkali precipitant and seawater; a concentration step of reacting a precipitate formed in the pre-precipitation step with sulfuric acid, followed by filtering to obtain a first eluate; a first precipitation step of adding ethanol to the first eluate, and then removing a first precipitated solid to obtain a second eluate; and a second precipitation step of precipitating magnesium sulfate solid by further adding ethanol to the second eluate from which the first precipitated solid has been removed.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Shim, Do Sik
No, Jae Yeop
Abrégé
A surface lamination method using a direct energy deposition (DED) device without making pores between bead rows is disclosed. The surface lamination method using the DED device without making pores between bead rows forms a first bead row laminated by means of a first linear movement of a nozzle of the DED device, and a second bead row laminated so as to be partially overlapped with the first bead row by means of a second linear movement of the nozzle of the DED device for overlapping the first bead row, and increases the laser output of the DED device if the inclination of a surface to be laminated is increased.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Yoon, Sung Hwan
Kim, Young Min
Park, Ju Won
Abrégé
The present invention relates to a method for extinguishing a fire and controlling smoke by means of an electric field and, more specifically, to a fire extinguishing system, using an electric field, for extinguishing a fire and moving smoke by means of ionic wind due to neutron and ionic charge, by applying an electric field when the fire occurs. The present invention principally relates to a fire extinguishing system, using an electric field, comprising: a first electrode disposed so as to be positioned in the center of a fire; a second electrode disposed so as to be positioned in the periphery of the fire; and a power supply apparatus for supplying a power source to the first electrode and second electrode to apply an electric field to a hydrocarbon-based fire which is ionized when the fire occurs, thereby extinguishing the fire or moving smoke by means of ionic wind due to neutron and ionic charge.
A62C 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
A62C 3/16 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les installations électriques, p. ex. chemins de câbles
H02B 13/025 - Dispositions pour la sécurité, p. ex. en cas de surpression ou d'incendie causés par un défaut électrique
21.
METHOD FOR PRODUCING CALCIUM CARBONATE BY UTILIZING SEA WATER AND BURNED SHELLS, AND CALCIUM CARBONATE AND CALCIUM AGENT PRODUCED THEREBY
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kim, Myoung Jin
Kim, Geun Young
Kim, Se Hun
Shin, Seon Mi
Abrégé
Disclosed are a method for producing calcium carbonate by utilizing sea water and burned shells, and calcium carbonate and a calcium agent produced thereby. The method for producing calcium carbonate by utilizing sea water and burned shells, especially, a method for producing vaterite calcium carbonate, comprises: a first step of mixing burned shells, sea water, and a sugar to elute calcium; and a second step of injecting carbon dioxide into the calcium eluate obtained through the first step to produce calcium carbonate.
B01J 19/10 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage utilisant des vibrations de fréquences audibles ou des ultrasons
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Ko, Junghyuk
Kim, Hyeonjong
Abrégé
Proposed are a smart walking aid device and method for rehabilitation of Parkinson's disease patients. According to one embodiment, a smart walking aid method using a smart walking aid device for rehabilitation of Parkinson's disease patients comprises the steps of: collecting acceleration data generated when walking by using an acceleration sensor of a sensor unit worn on both ankles of a user; counting the number of steps considered as steps by computing and processing the acceleration data collected; by using a wireless communications module, transferring the number of steps counted to a display unit worn on the user's wrist; and displaying the number of steps counted through a display of the display unit.
A61B 5/11 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G01C 22/00 - Mesure de la distance parcourue sur le sol par des véhicules, des personnes, des animaux ou autres corps solides en mouvement, p. ex. en utilisant des odomètres ou en utilisant des podomètres
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Lee, Seung Jae
Yun, Seok Hee
Ji, Hae Jun
Kim, Seong Jae
Lee, Seung Jae
Abrégé
Disclosed is a spirally heating submarine pipeline including: a conduit which transports a high temperature high pressure fluid from a submarine oil well; and a heating unit disposed in a spiral structure inside based on an outer circumferential surface of the conduit. The heating unit includes an electric heating wire that is installed along the spiral structure to generate heat; a heat insulator that is installed in the form of fully surrounding the electric heating wire and preserves the generated heat; and a heat insulating cap for isolating the heat insulator from the conduit or the heat insulating layer and is provided so as to increase the temperature of the flow in the pipe to prevent the production of a pipe flow interfering material when the fluid is transported in the conduit.
F16L 53/38 - Chauffage par résistance ohmique en utilisant des éléments de chauffage électrique allongés, p. ex. des fils ou des rubans
E21B 36/00 - Aménagements pour le chauffage, le refroidissement ou l'isolation dans les trous de forage ou dans les puits, p. ex. pour être utilisés dans les zones de permagel
E21B 36/04 - Aménagements pour le chauffage, le refroidissement ou l'isolation dans les trous de forage ou dans les puits, p. ex. pour être utilisés dans les zones de permagel utilisant des réchauffeurs électriques
F17D 1/18 - Amélioration du transfert des liquides ou exécution du transfert de produits visqueux par modification de leur viscosité par échauffement
E21B 43/01 - Procédés ou dispositifs pour l'extraction de pétrole, de gaz, d'eau ou de matériaux solubles ou fusibles ou d'une suspension de matières minérales à partir de puits spécialement adaptés à l'extraction à partir d'installations sous l'eau
24.
Method for manufacturing porous carbon material doped with heterogeneous element and porous carbon material doped with heterogeneous element prepared therefrom
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (USA)
Inventeur(s)
Kang, Jun
Kim, Dae Young
Abrégé
A method for manufacturing a porous carbon material doped with a heterogeneous element and a porous carbon material doped with a heterogeneous element manufactured using the method are proposed. The method includes melting carbon precursor powder that contains one or more kinds of heterogeneous elements selected from metal and nonmetal to prepare a precursor melt; disposing a pair of metal wires in the precursor melt; and applying power to the metal wires to perform plasma-discharge, thus forming and aggregating carbon nanoparticles doped with the heterogeneous element while having a micropore and thereby forming a porous carbon material having a meso-macro hierarchical pore structure. As the heterogeneous element is bound to carbon of the carbon precursor, the carbon nanoparticles are formed in an amorphous structure while being doped with the heterogeneous element, thus increasing an active site.
H01M 4/587 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx pour insérer ou intercaler des métaux légers
B01J 19/08 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage
C01B 32/05 - Préparation ou purification du carbone non couvertes par les groupes , , ,
H01M 4/02 - Électrodes composées d'un ou comprenant un matériau actif
H01M 10/054 - Accumulateurs à insertion ou intercalation de métaux autres que le lithium, p. ex. au magnésium ou à l'aluminium
25.
METHOD FOR PRODUCING NITROGEN-CARBON AGGREGATE HAVING HIERARCHICAL POROUS STRUCTURE, NITROGEN-CARBON AGGREGATE PRODUCED THEREBY, AND SODIUM-ION BATTERY COMPRISING SAME
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kang, Jun
Kim, Dae Young
Abrégé
The present invention relates to a method for producing a nitrogen-carbon aggregate having a hierarchical porous structure, a nitrogen-carbon aggregate produced thereby, and a sodium-ion battery comprising same. Such present invention relates to a method for producing a nitrogen-carbon aggregate having a hierarchical porous structure, a nitrogen-carbon aggregate produced thereby, and a sodium-ion battery comprising same, the method comprising: a first step for producing a precursor solution comprising a nitrogen-containing carbon precursor; a second step for disposing a pair of metal wires in the precursor solution; and a third step for, by performing plasma discharge by applying electric power to the metal wires, thereby enabling the nitrogen to bind to the carbon of the carbon precursor, forming nitrogen-doped carbon nanoparticles having a turbostratic structure and having micropores on the surface thereof, and, by means of the aggregation of the carbon nanoparticles, forming an aggregate having a meso-macro hierarchical porous structure, wherein active sites of the aggregate are increased by means of the nitrogen doping.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Lee, Won Ju
Choi, Jae Hyuk
Kang, Jun
Lee, Chang Hee
Lee, Ji Woong
Choi, Yong Seok
Abrégé
The present invention relates to a ship ballast water tank air flow-based power generation apparatus and an electric power supply system for a ship emergency device, and provides a ship ballast water tank air flow-based power generation apparatus and an electric power supply system for a ship emergency device, which comprise a ship ballast water tank, a turbine, and a generator and thus can be compatibly employed in all existing ships. Furthermore, the present invention enables utilization of energy generated due to air flow and thus promotes economical efficiency and convenience.
F03D 9/32 - Mécanismes moteurs à vent spécialement adaptés à l’installation dans des endroits particuliers sur des objets mobiles, p. ex. des véhicules
F03D 3/00 - Mécanismes moteurs à vent avec axe de rotation sensiblement perpendiculaire au flux d'air pénétrant dans le rotor
F03D 80/00 - Détails, composants ou accessoires non prévus dans les groupes
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kang, Jun
Ko, Jung Hyuk
Kim, Dae Yeong
Abrégé
The present invention relates to a method for preparing a carbon nanotube-carbon nanofiber composite, and a carbon nanotube-carbon nanofiber composite prepared thereby. The subject matters of the present invention are a method for preparing a carbon nanotube-carbon nanofiber composite, and a carbon nanotube-carbon nanofiber composite prepared thereby, the method comprising: a first step of dissolving an alkali metal precursor in a solvent to prepare an alkali metal precursor solution; a second step of dissolving a carbon-containing polymer in the alkali metal precursor solution to prepare a spinning solution; a third step of electrospinning the spinning solution to prepare carbon-containing polymer nanofibers having surfaces to which the alkali metal precursor is bound; a fourth step of heat-treating the carbon-containing polymer nanofibers to prepare carbon nanofibers having surfaces to which the alkali metal precursor is bound; and a fifth step of heat-treating the carbon nanofibers while a carbon source is supplied, so that the alkali metal precursor is activated as an alkali metal nanocatalyst, and the carbon source is bound to the surfaces of the carbon nanofibers by the nanocatalyst, and crystallizes and grows into carbon nanotubes, thereby preparing carbon nanofibers having surfaces to which the carbon nanotubes are bound.
D06M 11/74 - Traitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du carbone ou ses composés avec du carbone ou du graphiteTraitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du carbone ou ses composés avec des carburesTraitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du carbone ou ses composés avec des acides graphitiques ou leurs sels
D01F 9/12 - Filaments de carboneAppareils spécialement adaptés à leur fabrication
D01D 5/00 - Formation des filaments, fils ou similaires
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Shim, Do Sik
Abrégé
A hard facing method for a press die, of the present invention, comprises: a preheating step of preheating a press die prepared as a base structure; a lamination step of forming a hard facing layer on the base structure by providing a high speed tool steel powder to the preheated base structure while forming a molten pool by using a laser; and a post-heat treatment step of sequentially performing a quenching step and a tempering step in a state in which the hard facing layer is formed on the base structure.
B22F 7/02 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de couches successives
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
B22F 3/24 - Traitement ultérieur des pièces ou objets
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kang, Jun
Kim, Dae Yeong
Abrégé
The present invention relates to a method for mass synthesis of carbon nanotubes using an alkali metal catalyst and carbon nanotubes synthesized thereby and, more specifically, to the synthesis of pure carbon nanotubes using an alkali metal catalyst based on a Group 1 element other than hydrogen, not using non-alkali metal catalysts such as iron, cobalt, and nickel. The subject matters of the present invention are a method for mass synthesis of carbon nanotubes using an alkali metal catalyst, and carbon nanotubes synthesized thereby, the method comprising the steps of: preparing a carbon source; forming an alkali metal catalyst precursor solution by dissolving, in a solvent, an alkali-metal-containing compound, which is based on an alkali metal; and spraying and heat-treating the alkali metal catalyst precursor solution while the carbon source is supplied, so that the alkali metal of the alkali metal catalyst precursor solution being sprayed agglomerates as a nanocatalyst, and the carbon source is dissolved by the nanocatalyst and crystallized to grow into carbon nanotubes and at the same time, the nanocatalyst is removed as the nanocatalyst vaporizes.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
GLOBAL FRONTIER HYBRID INTERFACE MATERIALS (République de Corée)
Inventeur(s)
Kang, Jun
Kim, Kwang Ho
Abrégé
The present invention relates to a method for increasing the reversible capacity of an anode electrode material for alkali-ion batteries and, more specifically, to a method for increasing the reversible capacity of an anode electrode material for alkali-ion batteries, wherein, after synthesizing a carbon material in which the inside of carbon is doped by plasma with an alkali metal in a solution, the doped alkali metal is desorbed by an ether-based electrolyte to form new void spaces to maximize the storage capacity of the alkali metal, thereby allowing reversible capacity to be increased while compensating for Coulombic efficiency.
KOREA MARITIME UNIVERSITY INDUSTRYACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Yoon, Ji Ho
Woo, Ye Sol
Jeong, Jae Hak
Abrégé
The present invention relates to a hydroquinone-resorcinol complex inclusion compound and a method for capturing or storing a low-molecular gas using same, and specifically, to a hydroquinone-resorcinol complex inclusion compound that can capture or store a low-molecular gas at normal temperature and pressure, and a method for capturing or storing low molecular gas using the same. The hydroquinone-resorcinol complex inclusion compound according to the present invention has the effects of being able to: synthesize small gas molecules into an inclusion complex using low pressure, have a high gas storage amount, and maintain gas storage performance even at normal pressure or room temperature.
B01D 53/04 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
C01B 3/00 - HydrogèneMélanges gazeux contenant de l'hydrogèneSéparation de l'hydrogène à partir de mélanges en contenantPurification de l'hydrogène
Electronics and Telecommunications Research Institute (République de Corée)
Korea Maritime University Industry-Academic Cooperation Foundation (République de Corée)
Inventeur(s)
Park, Sung-Ik
Kim, Jeong-Chang
Lee, Jae-Young
Kwon, Sun-Hyoung
Kim, Hyeong-Seok
Kim, Heung-Mook
Hur, Nam-Ho
Abrégé
Disclosed herein are an apparatus and method for decoding a bootstrap signal. The apparatus for decoding a bootstrap signal according to an embodiment of the present invention includes an operation unit for calculating the relative cyclic shift and the channel gain estimate of a received bootstrap signal and correcting the channel gain estimate using the relative cyclic shift, and a decoding unit for decoding the bootstrap signal using the corrected channel gain estimate.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kang, Jun
Choi, Jae Hyuk
Lee, Won Ju
Jo, Gyu Jang
Kim, Se Hyeon
Kim, Dae Yeong
Abrégé
The present invention relates to a method for mass synthesis of carbon nanotubes and carbon nanotubes synthesized thereby and, more specifically, to a method for mass synthesis of carbon nanotubes and carbon nanotubes synthesized thereby, wherein the method enables not only the synthesis of a catalyst at a high rate through plasma generation without a separate reductant but also the continuous mass synthesis of high-purity carbon nanotubes. The technical essences of the present invention are a method for mass synthesis of carbon nanotubes and carbon nanotubes synthesized thereby, the method comprising: a first step of supplying a CNT growth material containing a carbon precursor; a second step of disposing a pair of metal wires in a solution mixed with a metal salt, and applying electric power to the metal wires to generate plasma to thereby synthesize a catalyst through a reduction of the metal salt into a metal atom; and a third step of thermally treating the CNT growth material and the catalyst to dissolve the carbon precursor in the catalyst, thereby continuously synthesizing carbon nanotubes while growing carbon nanotubes.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADAMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Lee, Seung Jae
Yun, Seok Hee
Ji, Hae Jun
Kim, Seong Jae
Lee, Seung Jae
Abrégé
The present invention relates to a spirally heating submarine pipeline which can prevent wax and hydration from occurring within a submarine pipeline during fluid transportation from a subsea production plant. More specifically, the present invention relates to a technology for a spirally heating submarine pipeline wherein an electric heating wire having a semicircular cross-sectional shape is laid in a spiral structure while being arranged inside a pipeline so as not to protrude out of the outer circumferential surface of the pipeline, whereby thermal conductivity and fluid flow in the pipeline can be improved.
F17D 1/18 - Amélioration du transfert des liquides ou exécution du transfert de produits visqueux par modification de leur viscosité par échauffement
F24H 1/10 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant
F16L 53/38 - Chauffage par résistance ohmique en utilisant des éléments de chauffage électrique allongés, p. ex. des fils ou des rubans
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Yun, Sangkook
Abrégé
A freezer is disclosed. A freezer according to an embodiment comprises: a compressor configured to discharge a refrigerant in the gas state; a condenser configured to cool and liquefy the refrigerant discharged from the compressor; a liquid-gas separator configured to primarily expand the refrigerant liquefied in the condenser to an intermediate pressure to collect the refrigerant in the liquid state and the gas state; and an evaporator which cools a predetermined space as the refrigerant in the liquid state flows from the liquid-gas separator into the evaporator and then is secondarily expanded to a final pressure and thus absorbs heat and is gasified, and which guides the refrigerant in the gas state in the liquid-gas separator to the compressor.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Gug, Seung Gi
Abrégé
A buoy system according to one embodiment of the present invention includes a buoy body configured to provide buoyance; a fixing belt configured to fasten the buoy body to a ship structure; an auto-release unit configured to release the buoy body to be buoyed by releasing the fixing belt when a predetermined water pressure is reached; and an auto-reel chain box fixed to the ship structure, being opened in conjunction with releasing of the fixing belt, and including a chain which is reeled out when the buoy body is buoyed, wherein the auto-reel chain box comprises: a weight provided in the auto-reel chain box and being movable upward and downward according to a water pressure and buoyance; a pulley provided in the auto-reel chain box, having the chain wounded thereon and a plurality of teeth on an outer circumferential surface thereof; and a shaft having one end connected to the weight and the other end engaging with the teeth to fix the pulley and provided to be rotatable around a portion fixed in the auto-reel chain box.
B63B 22/08 - Dispositifs d'ancrage comportant des moyens pour larguer ou pousser à la surface une bouée immergée, p. ex. pour marquer l'emplacement d'objets coulés
B63C 7/26 - Moyens pour marquer l'emplacement d'objets immergés, p. ex. de navires coulés
37.
METHOD FOR MANUFACTURING HIGH-PURITY VATERITE-TYPE AND CALCITE-TYPE CALCIUM CARBONATE BY USING INDIRECT CARBONATION OF SEAWATER
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kim, Myoungjin
Jeon, Junhyeok
Abrégé
22 is eluted using seawater as a solvent, so that calcium can be eluted with high efficiency using magnesium contained in seawater; the purity of calcium carbonate can be increased by using the alkaline industrial byproducts to precipitate magnesium in seawater, which disturbs the production of high-purity calcium carbonate; and vaterite-type and calcite-type calcium carbonate having high purity of 99.9% or higher can be economically manufactured by utilizing seawater instead of a high-cost solvent.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
GLOBAL FRONTIER HYBRID INTERFACE MATERIALS (République de Corée)
Inventeur(s)
Kang, Jun
Kim, Kwang-Ho
Abrégé
The present invention relates to a lithium-carbon composite having cavities formed therein, and a method for producing same, and the technical essence thereof is that the present invention includes: a step for adding a lithium precursor to an organic solvent having an aromatic ring and mixing same; a step for arranging a pair of metal wires inside the organic solvent; a step for forming a lithium-carbon composite, in which a carbon body is doped with lithium, through plasma discharge inside a solution; and a step for annealing the lithium-carbon composite to remove the hydrogen inside the lithium-carbon composite and form cavities inside the lithium-carbon composite. Accordingly, a lithium-carbon composite can be simply synthesized using plasma discharge inside a solution, and the synthesized lithium-carbon composite can be annealed to form cavities therein and thereby enhance the lithium charging-discharging performance of a lithium secondary battery adopting the lithium-carbon composite.
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (République de Corée)
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Park, Sung-Ik
Kim, Jeong-Chang
Lee, Jae-Young
Kwon, Sun-Hyoung
Kim, Hyeong-Seok
Kim, Heung-Mook
Hur, Nam-Ho
Abrégé
Disclosed are a device and a method for decoding a bootstrap signal. A device for decoding a bootstrap signal according to one embodiment of the present invention comprises: a calculation unit which calculates a relative cyclic shift value and a channel gain estimate of a received bootstrap signal and compensates for the channel gain estimate by using the relative cyclic shift value; and a decoding unit for decoding the bootstrap signal by using the compensated channel gain estimate.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY (République de Corée)
KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE (République de Corée)
Inventeur(s)
Jeon, Tae-In
Bark, Hyun Sang
Lee, Sang Jun
Noh, Sam Kyu
Kim, Jun Oh
Oh, Seung Jea
Ji, Young Bin
Abrégé
A terahertz (THz) probe waveguide for cancer surgery is proposed. According to one embodiment, the THz probe waveguide comprises: a tube having an inner space part; a core part accommodated in the inner space part of the tube, spaced apart at a predetermined interval from the tube, and disposed in an axial direction; and a transceiver chip formed at a rear side of the core part and having a THz-wave transmitter (Tx) and receiver (Rx) formed on a substrate so as to transmit and detect a THz wave, wherein a front end of the core part is guided to an outer side of a front end of the tube such that the THz wave transmitted from the transceiver chip can be transferred.
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
41.
METHOD FOR PREPARING TWO-DIMENSIONAL MATERIAL BY USING ADSORPTION INHIBITORY SURFACE TREATMENT
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Ahn, Ji Hoon
Jeon, Woo Jin
Jeong, Seong Jun
Abrégé
The present invention relates to a method for preparing a two-dimensional material of which the electrical properties are improved by increasing a crystalline size by adopting an adsorption inhibitor. More specifically, disclosed is a method for preparing a two-dimensional material by using an adsorption inhibitory surface treatment, the method comprises the steps of: (1) adopting an adsorption inhibitor in a substrate having adsorption sites so as to adsorb the adsorption inhibitor thereon; (2) forming, by using atomic layer deposition, a two-dimensional material on the adsorption sites on which the adsorption inhibitor has not been adsorbed; and (3) crystallizing the formed two-dimensional material. The method for preparing a two-dimensional material by using an adsorption inhibitory surface treatment, according to the present invention, has the effects of: obtaining a two-dimensional material in the form of a thin film that is uniform with respect to a wide area; enabling a plastic material, which is vulnerable to heat, to be freely applied to a substrate as the method is performed at a low processing temperature; and increasing the crystallinity of a two-dimensional material, thereby being capable of preparing a two-dimensional material having excellent charge mobility.
C23C 16/04 - Revêtement de parties déterminées de la surface, p. ex. au moyen de masques
C23C 16/455 - Revêtement chimique par décomposition de composés gazeux, ne laissant pas de produits de réaction du matériau de la surface dans le revêtement, c.-à-d. procédés de dépôt chimique en phase vapeur [CVD] caractérisé par le procédé de revêtement caractérisé par le procédé utilisé pour introduire des gaz dans la chambre de réaction ou pour modifier les écoulements de gaz dans la chambre de réaction
C23C 16/30 - Dépôt de composés, de mélanges ou de solutions solides, p. ex. borures, carbures, nitrures
C23C 16/22 - Revêtement chimique par décomposition de composés gazeux, ne laissant pas de produits de réaction du matériau de la surface dans le revêtement, c.-à-d. procédés de dépôt chimique en phase vapeur [CVD] caractérisé par le dépôt de matériaux inorganiques, autres que des matériaux métalliques
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Gug, Seung Gi
Abrégé
An automatically detaching danger marking buoy is disclosed. A buoy system according to an embodiment of the present invention comprises: a buoy body for providing buoyancy; a retaining belt for retaining the buoy body on a ship structure; an automatically detaching device configured such that, when a predetermined water pressure is reached, the same releases the retaining by the retaining belt and allows the buoy body to automatically detach and float; and an automatic reel chain box which is retained on the ship structure, which is interlocked with the release of the retaining by the retaining belt and is accordingly opened, and which comprises a chain that is extended when the buoy body floats. The automatic reel chain box comprises: a weight provided inside the automatic reel chain box to be able to move upward/downward by means of water pressure and buoyancy; a pulley which is provided inside the automatic reel chain box, around which a chain is wound, and which has a plurality of teeth provided on the outer peripheral surface thereof; and a shaft, one end portion of which is coupled to the weight, the other end portion of which meshes with the teeth and retains the pulley, and which is provided to be able to rotate about a fixed part inside the automatic reel chain box by means of the upward/downward movement of the weight.
B63C 7/26 - Moyens pour marquer l'emplacement d'objets immergés, p. ex. de navires coulés
F21W 111/047 - Utilisation ou application des dispositifs ou des systèmes d'éclairage pour la signalisation, le balisage ou l'indication, non prévues dans les groupes pour les voies navigables pour les bouées lumineuses
43.
TIN/MAGNESIUM THIN FILM FORMED ON ZINC PLATED LAYER AND MANUFACTURING METHOD THEREFOR
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Lee, Myeong-Hoon
Park, Jun-Mu
Hwang, Sung-Hwa
Abrégé
The present invention relates to a tin/magnesium thin film formed on a zinc plated layer and a method for manufacturing the same. The method comprises the steps of: preparing a substrate on which a zinc plated layer is formed; physically depositing magnesium (Mg) and tin (Sn) on the surface of the zinc plated layer to form a magnesium thin film and a tin thin film; and diffusing zinc, magnesium, and tin atoms through heat treatment to form a thin film in which tin/magnesium mutual solubility and intermetallic compounds are present. Due to these features, it is possible to provide a shielding effect and sacrificial anode property by the diffusion between components and the formation of intermetallic compounds through a physical vapor deposition method and the heat treatment. Furthermore, it is possible to obtain the effect that a tin/magnesium thin film can be produced on a zinc-plated substrate stably, densely-stably and rapidly by comprehensively considering and controlling the influence of crystal orientation according to production conditions.
C23C 10/28 - Diffusion à l'état solide uniquement d'éléments métalliques ou de silicium dans la couche superficielle de matériaux métalliques au moyen de solides, p. ex. au moyen de poudres, de pâtes
C23C 28/02 - Revêtements uniquement de matériaux métalliques
44.
BATTERY-LINKED HIGH-EFFICIENCY POWER MANAGEMENT SYSTEM AND METHOD FOR SHIP AND OFFSHORE PLANT
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Oh, Jin-Suck
Abrégé
The present invention relates to a battery-linked high-efficiency power management system and method for a ship and an offshore plant, the system comprising: at least one load connected to a ship; a PMS connected to a plurality of generators so as to control operation of the generators such that the main power is supplied to the load; a BMS connected to a predetermined battery pack so as to control charging/discharging of a battery within the battery pack such that auxiliary power is supplied to the load; and a BPMS operating by linking the PMS and the BMS, wherein the BPMS comprises: a communication unit for transmitting and receiving a state value of the battery or the generators from each of the BMS and the PMS; a setting information input unit for receiving, from an external user, setting information on the battery, the generators, or a heavy load request; a storage unit for mapping the received state value with the inputted setting information and storing the same; a control mode selection unit for selecting any one mode among a preset standby mode, a charge mode, a discharge mode, and a heavy load control mode on the basis of the state value and the setting information; an algorithm execution unit for executing a preset algorithm according to the selected mode. Therefore, a battery is maintained in a mostly charged state so as to supply power through the battery in a heavy load having a short time of use or a specific peak load, thereby reducing the capacity of the generators and the number of operating generators.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kim, Myoung-Jin
Jung, Sungsu
Kim, Dami
Jeon, Junhyeok
Cho, Taeyeon
Abrégé
The present invention relates to a storage of a carbon dioxide and a production of a high-purity calcium carbonate using an indirect carbonation of alkali industrial byproducts. Particularly, the present invention provides a method for storing a carbon dioxide through the production of high-purity calcium carbonate, comprising a first step of adding a solvent to the alkali industrial byproducts to thereby elute calcium; a second step of separating the calcium eluate from the residual byproduct; a third step of performing a carbonation reaction in which carbon dioxide is introduced into the calcium eluate to thereby produce a calcium carbonate; a fourth step of separating the calcium eluate into the calcium carbonate and a solvent after the carbonation reaction; and a fifth step of reusing the solvent of the fourth step as the solvent of the first step, wherein the solvent is a chelating reagent of which the stabilization constant with calcium is smaller than the stabilization constant of calcium carbonate.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
MATTRON CO., LTD. (République de Corée)
Inventeur(s)
Sohn, Kyungrak
Kim, Hyunsik
Abrégé
The present invention relates to a system for preventing a welding accident by using power line-based legacy-line communication. According to the present invention, the welding machine system for preventing a welding accident by using power line-based legacy-line communication comprises: a power control unit for controlling the supply of power; a welding device for receiving power from the power control unit through a first power line; a portable welding feeder for receiving power from the welding device through a second power line and supplying a welding wire at a predetermined speed; a wearable communication unit for receiving work position information and evacuation guidance information; a sensor unit, which is attached to the portable welding feeder and detects an emergency situation of the surroundings; a first communication unit, which is attached to the portable welding feeder, receives and delivers the work position information from the wearable communication unit and emergency situation information from the sensor unit, and delivers received evacuation guidance information to the wearable communication unit; a first signal coupling unit, which delivers information outputted from the first communication unit to the second power line, and collects information delivered through the second power line and delivers the collected information to the first communication unit; a first bypass unit for delivering information between the first power line and the second power line by bypassing the welding device; a second bypass unit for delivering information between the first power line and the outside by bypassing the power control unit; and a management server for transmitting the evacuation guidance information to the second bypass unit by determining whether an emergency situation has occurred for each work position on the basis of information received from the second bypass unit.
B23K 37/00 - Dispositifs ou procédés auxiliaires non spécialement adaptés à un procédé couvert par un seul des autres groupes principaux de la présente sous-classe
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Lee, Kang Ki
Choi, Jae Sun
On, Nu Ri
Abrégé
A prompt port facility is disclosed. The prompt port facility can comprise: a hull; a docking facility for mooring the hull at a predetermined location, and shipping or loading/unloading by using at least one crane provided on an upper part of the hull; an electricity generation module producing electricity through an electric generator arranged inside the hull, so as to supply the electricity to the outside; and a desalination module arranged inside the hull, and desalinating seawater, by using electric energy or thermal energy, so as to supply the desalinated seawater to the outside.
B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p. ex. portant des appareils séparateurs huile-eau
B63B 27/10 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des grues, ponts roulants ou portiques
B63J 1/00 - Aménagements relatifs aux installations de production d'eau douce sur les navires, p. ex. par évaporation et condensation de l'eau de mer
B63B 21/50 - Dispositifs d'ancrage pour navires spéciaux, p. ex. pour plates-formes flottantes de forage ou dragues
B63B 25/00 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet
B63B 35/50 - Navires ou constructions flottantes pour aéronefs
B63B 25/16 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
B63B 21/00 - Apparaux de manœuvreApparaux de déhalage, de remorquage ou de pousséeAncrage
C02F 103/08 - Eau de mer, p. ex. pour le dessalement
48.
DEVICE FOR PARTIALLY RE-LIQUEFYING BOIL-OFF GAS OF LIQUEFIED NATURAL GAS FOR SHIP
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Yun, Sang Kook
Kang, Hee-Ja
Kim, Nam Kug
Abrégé
The present invention relates to a device for partially re-liquefying boil-off gas of liquefied natural gas for a ship, wherein the device compresses boil-off gas (BOG) generated in an LNG storage tank (100) for a ship, re-liquefies the compressed boil-off gas, and stores the re-liquefied boil-off gas. The present invention provides the configuration of a device for partially re-liquefying boil-off gas of liquefied natural gas for a ship, the device comprising: a storage tank (100) for storing LNG; a first heat exchanger (170) for exchanging heat using low-temperature heat of the low-temperature BOG boil-off gas discharged from the storage tank (100); a compressor (130) for compressing boil-off gas introduced through the first heat exchanger (170) into high-pressure gas at 250-300 bar; a branch portion (210) comprising a second channel (200) for transferring the high-pressure gas discharged from the compressor (130) to the first heat exchanger (170) and a first channel (190) for transferring the same to a precooler (120); a precooler (120) for cooling the high-pressure gas discharged through the first channel (190) to a state of -25 to 30ºC and 300 bar; a second heat exchanger (180) for additionally cooling the high-pressure gas discharged through the precooler (120) using flash gas at -162ºC; a pressure-reducing/expanding valve (140) for merging compressed gases cooled through the second heat exchanger (180) of the first channel (190) and the first heat exchanger (170) of the second channel (200) and pressure-reducing the same to an atmospheric state, thereby expanding the same; and a liquid/gas separator (160) for separating the boil-off gas that has been pressure-reduced by the pressure-reducing/expanding valve (140) into a saturated liquid and a saturated gas, transferring the flash gas to the second heat exchanger (180), and transferring the saturated liquid to the storage tank (100). The liquefaction process using the partial re-liquefaction device according to an embodiment of the present invention is a method for re-liquefying a larger amount of BOG, and the method substantially reduces the cost of the partial re-liquefaction device and provides an efficient system that reduces energy consumption.
Korea Maritime University Industry-Academic Cooperation Foundation (République de Corée)
Inventeur(s)
Kim, You Taek
Kim, Do Yeop
Kim, Jun Seong
Abrégé
Disclosed is an apparatus for decreasing a thrust of a radial flow turbine. The apparatus includes a rotary shaft having an axial through-hole in the interior thereof, a rotor assembled in the rotary shaft and having a rotor hub and rotor blades formed on an outer peripheral surface thereof, a casing configured to isolate the rotary shaft and the rotor from the outside, and a shaft seal configured to maintain a seal between the rotary shaft and the casing.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kim, Hwanseong
Abrégé
The present invention relates to a multiple moving rack configuring device for configuring a multiple moving rack device in which moving racks are provided split into modules, and for grouping each of the moving racks and synchronizing and sending same in the longitudinal direction, the lateral direction or the longitudinal and lateral directions; wherein the invention comprises moving racks (15), which are modularised into a plurality of rows or the like, together with a governor unit (11) for governing the moving racks (15), a moving rack control unit (14) and a communication unit (13), such that it is possible to reduce operating costs consequent on the modularisation of the moving racks (15), and wherein, by effecting synchronous control at a constant drive speed despite the moving racks (15) having mutually different weights, it is possible to minimise consequent shaking and twisting and facilitate movement and so shorten the overall working time. Also, in an example of the present invention, a system is provided for controlling the electrical power of moving racks that move logistical items within a factory or logistics centre, being a multiple moving rack electrical-power supply control system comprising: a fixed rack of which one or more is (are) provided on one side of the factory or logistics centre, and which is (are) provided with an integrated power control unit for converting an externally supplied alternating-current single-phase or three-phase power source into a direct-current power source such that the power source is supplied to the moving racks that move the logistical items via a power transmission connector unit, and for ascertaining and controlling the charge state of the moving racks; and the moving racks which are provided with a power-transmission connector that supplies power and with a power-receiving connector that receives power by coupling to a power connector provided on one side of the fixed rack or the moving rack, and which comprises a fastening sensing unit for checking the state of coupling between connectors, and with a moving-rack proximity-sensing unit for confirming proximity or otherwise of the fixed rack or of moving racks.
B65G 1/10 - Dispositifs d'emmagasinage mécaniques avec supports relativement mobiles pour faciliter l'insertion ou l'enlèvement des objets
B65G 1/137 - Dispositifs d'emmagasinage mécaniques avec des aménagements ou des moyens de commande automatique pour choisir les objets qui doivent être enlevés
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
G01R 31/02 - Essai des appareils, des lignes ou des composants électriques pour y déceler la présence de courts-circuits, de discontinuités, de fuites ou de connexions incorrectes de lignes
51.
HIGH-EFFICIENCY TERAHERTZ TRANSCEIVER ENABLING FREQUENCY MODULATION
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE (République de Corée)
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY (République de Corée)
Inventeur(s)
Jeon, Tae-In
Noh, Sam-Kyu
Ji, Young-Bin
Lee, Sang-Jun
Oh, Seung-Jae
Park, Hyeon-Sang
Jeong, Ki-Young
Kim, Sang-Hoon
Kim, Jun-Oh
Abrégé
The present invention relates to a high-efficiency THz receiver enabling frequency modulation. The high-efficiency THz receiver enabling frequency modulation according to the present invention comprises: an active layer; a photoconductive antenna positioned on the upper section of one side of the active layer; a nano grating antenna (NGA) formed on the photoconductive antenna; a semiconductor substrate positioned on the lower section of the other side of the active layer; and a surface plasmon coupler (SPC) positioned on the boundary surface between the substrate upper surface and the active layer, wherein the active layer is formed as an indium gallium arsenide (InGaAs) thin film or a dissimilar laminated thin film comprising an InGaAs/InAlAs multi-quantum well (MQW) layer, and the photoconductive antenna comprises: a parallel metal transmission line which extends in parallel at a certain length; central protrusions which protrude symmetrically so as to face inwardly at the central area of the parallel metal transmission line; and electrode pads which extend symmetrically on both ends of the parallel metal transmission line. The NGA is positioned on the central protrusions of the photoconductive antenna, and may have at least one pattern patterned and consecutively arranged thereon. The SPC may be positioned on the lower surface of the active layer, may have a plurality of patterns formed thereon by being periodically patterned so as to form a concentric circle, may have other forms of patterns, and may be formed of a metallic material. In addition, the high-efficiency THz receiver enabling frequency modulation according to the present invention is configured so as to be applied to a THz-wave receiver (Tx) or receiver (Rx) comprising discrete devices, or to be applied to a THz transceiver for generating and detecting a THz wave using a single photoconductive antenna on a single substrate and to be applied to a Tx and a Rx which are spaced at certain intervals and integrated on the single substrate, thereby being capable of transmitting and detecting the THz wave within the discrete devices or a single device. Due to said configuration, the high-efficiency THz receiver enabling frequency modulation according to the present invention can increase THz-wave generation and output and measurement sensitivity by integrating the NGA and the SPC. Simultaneously, the high-efficiency THz receiver is configured such that frequency can be modulated while the THz wave generated at a certain bandwidth passes through a surface plasmon resonance structure, thereby being able to have frequency selectivity.
H01S 3/10 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p. ex. commutation, ouverture de porte, modulation ou démodulation
52.
ZERO VOLTAGE TRANSCEIVER OPERATING IN TERAHERTZ BAND
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY (République de Corée)
KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE (République de Corée)
Inventeur(s)
Jeon, Tae-In
Noh, Sam-Kyu
Ji, Young-Bin
Oh, Seung-Jae
Park, Hyeon-Sang
Jeong, Ki-Young
Kim, Sang-Hoon
Park, Dong-Woo
Kim, Jun-Oh
Abrégé
The present invention relates to a zero voltage transceiver operating in the terahertz (THz) band. The zero voltage transceiver operating in the THz band according to the present invention includes: a substrate; a transmitter Tx disposed on the substrate, transmitting THz waves and not using a bias voltage; a receiver Rx disposed at a certain interval from the transmitter Tx and detecting the THz waves, wherein the transmitter Tx includes a metal wire that has a certain thickness and line width, and the receiver Rx includes a second active layer disposed on the substrate; and a photoconductive antenna disposed on the second active layer. Through such a configuration, the zero voltage transceiver operating in the THz band according to the present invention does not use a bias voltage and thus remarkably improves a signal to noise ratio, may use a laser pulse having low peak power, and may be safely used even when it is applied to medical diagnostic equipment to be used on the human body.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATOIN FOUNDATION (République de Corée)
Inventeur(s)
Lee, Youngho
Kim, Changgoo
Kim, Byungha
Abrégé
The present invention relates to a floating wave power generator using a cross-flow turbine and, more particularly, to a floating wave power generator using a cross-flow turbine, capable of generating electric power by operating the turbine using rolling motion generated by waves. The floating wave power generator using a cross-flow turbine according to the present invention comprises: a floating body, which is provided with a space therein, and the front and rear of the exterior of which are in the form of a flat hull, and which floats on the sea; a case comprising first and second case parts which are provided apart from one another on either inner side of the floating body and have a fluid accommodated therein; a fluid communication tube, which is provided as a tube extending from the lower parts of the sides, which face one another, of the first and second case parts and communicating therewith, and through which the fluid flows; a cross-flow turbine installed on one inner side of the fluid communication tube so as to rotate according to the flow of the fluid through the fluid communication tube; a generator provided inside the floating body, for generating electric power by receiving the power of the cross-flow turbine; and an air communication tube, which is provided as a tube extending from the upper parts of the sides, which face one another, of the first and second case parts and communicating therewith, and through which air flows, wherein the cross-flow turbine comprises a flywheel, the fluid flowing through the fluid communication tube by rolling according to rolling motion while floating on the sea rotates the cross-flow turbine, and the generator generates the electric power by the rotation power of the cross-flow turbine.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Lee, Youngho
Kim, Changgoo
Park, Jihoon
Abrégé
The present invention relates to an energy storage apparatus and, more specifically, to an energy storage apparatus using a power generation turbine by a high-pressure working fluid in a liquid state and a compressed gas in an enclosed space. The energy storage apparatus according to the present invention comprises: a first tank for storing a working fluid in a liquid state; a second tank for storing a gas and compressing or expanding the gas by the working fluid entering/exiting same; a working fluid supply channel having one end fastened to the lower end of the first tank and the other end fastened to the lower end of the second tank so as to supply the working fluid to the second tank; a working fluid return channel having one end fastened to the lower end of the first tank and the other end fastened to the lower end of the second tank so as to return the working fluid to the first tank; a storage pump provided on the working fluid supply channel, for supplying the working fluid stored in the first tank to the second tank, thereby generating stored energy in the form of a compressed gas; and a power generation turbine provided on the working fluid return channel and rotated by the pressure of the working fluid returned by the expansion of the gas inside the second tank, thereby generating electrical energy.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Oh, Jin-Seok
Abrégé
Disclosed are a system and a method for managing energy of a ship. The system and method for managing the energy of the ship according to one embodiment of the present invention includes: a main generation unit having a plurality of generators to supply power to loads of the ship; an emergency generation unit having a storage battery for charging electric energy generated from a wind power generation source using wind power and a solar power generation source using sunlight; a load power measurement unit for measuring the amount of used power in the loads of the ship; an environment measurement unit for measuring environmental data including seawater temperature and outdoor temperature; and a control unit for operating only one among the plurality of generators by controlling the amount of produced power of the main generation unit or the emergency generation unit according to the amount of used power measured in the load power measurement unit and the environmental data measured in the environment measurement unit.
Korea Maritime University Industry-Academic Cooperation Foundation (République de Corée)
Inventeur(s)
Jeon, Tae In
Lee, Eui Su
Abrégé
A terahertz band filter for filtering, in a frequency band, a terahertz wave propagating between a pair of metal plates with an upper parallel surface facing a lower parallel surface includes a sheet parallel to the upper and lower parallel surfaces, which is disposed between the metal plates and is spaced apart therefrom, and at least one slit located in the sheet to face the upper and lower parallel surfaces, wherein the sheet comprises a single slit to function as a notch filter for blocking in a specific frequency band.
G02B 6/293 - Moyens de couplage optique ayant des bus de données, c.-à-d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux avec des moyens de sélection de la longueur d'onde
57.
BIOLOGICAL TREATMENT METHOD AND WASTE-WATER TREATMENT AGENT FOR REFRACTORY WASTEWATER
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
BM CO., LTD (République de Corée)
Inventeur(s)
Kim, Hong-Gi
Kim, Jong-Tae
Koh, Sung-Cheol
Kim, In-Soo
Abrégé
The present invention relates to a biological treatment method for sewage and wastewater, tannery wastewater and livestock manure, and, more particularly, relates to a biological treatment method and a waste-water treatment agent for refractory wastewater, whereby not only is it possible to treat refractory wastewater biologically without any physical/chemical pre-processing but it is also possible to reduce the occurrence of the odours and the sludge which occur in the process of wastewater treatment. The biological treatment method for refractory wastewater of the present invention comprises: a step of producing a complex microbial liquid by maintaining, at between 15 and 28°C, a complex microbial liquid obtained by mixing between 0.01 and 1 percent by weight of mixed microorganisms BM-S-1 (Repository Deposit No. KCTC 11789BP), between 0.1 and 1 percent by weight of powdered chaff, between 0.1 and 1 percent by weight of powdered peat moss, between 1 and 5 percent by weight of molasses, between 0.01 and 1 percent by weight of shiitake mushroom waste wood dust and between 92 and 98 percent by weight of water; a mixed stock production step entailing the mixing of from 50 to 95 percent by weight of a culture stock with from 5 to 50 percent by weight of the complex microbial liquid; a high-temperature inoculation step in which from 0.01 to 1 part by weight of mixed microorganisms (BM-S-1) is inoculated into 100 parts by weight of the mixed stock, under high-temperature conditions of between 65°C to 85°C; a culturing step involving culturing of the mixed stock that has undergone the high-temperature inoculation; a drying step in which the cultured mixed stock is dried; a microbial starting broth production step in which the dried mixed stock is cultured in the liquid state; and a microbe activation step in which the microbe population is multiplied in order to introduce the microbial starting broth, that has undergone the microbial starting broth production step, into wastewater.
C02F 103/24 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant du traitement d'animaux, p. ex. de volaille ou de poissons, ou de parties de ceux-ci provenant de tanneries
C02F 103/20 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'élevage d'animaux
58.
MICROBIAL PREPARATION COMPRISING MIXED MICROORGANISMS, AND A BIOLOGICAL TREATMENT METHOD FOR RIVERS AND LAKES AND A SLUDGE AUTODIGESTION PROCESS USING THE SAME
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
BM CO., LTD (République de Corée)
Inventeur(s)
Kim, Hong-Gi
Kim, Jong-Tae
Koh, Sung-Cheol
Kim, In-Soo
Abrégé
The biological treatment method for rivers and lakes using a microbial preparation of the present invention comprises: a step of producing a complex microbial liquid by maintaining, at between 18 and 30°C, a microbial liquid obtained by mixing between 0.01 and 1 percent by weight of mixed microorganisms of Repository Deposit No. KCTC 11789BP (BM-S-1), between 1 and 10 percent by weight of chaff powder, between 1 and 10 percent by weight of powdered peat moss, between 1 and 5 percent by weight of shiitake mushroom waste wood, between 1 and 10 percent by weight of molasses and a balance of water (80 to 95 percent by weight); producing a mixed stock comprising between 70 and 90 percent by weight of one or more types of culturing stock selected from the group consisting of chaff powder, peat moss powder, rice bran powder and shiitake mushroom waste wood dried dust and between 10 and 30 percent by weight of the complex microbial liquid; a high-temperature inoculation step in which from 0.01 to 1 part by weight of mixed microorganisms (BM-S-1) is inoculated into 100 parts by weight of the mixed stock, under high-temperature conditions of between 65°C to 90°C; a culturing step involving culturing of the mixed stock that has undergone the high-temperature inoculation; a drying step in which a microbial preparation is produced by drying the mixed stock that has passed through the culturing step; and an introduction step in which the microbial preparation is introduced into a polluted river or lake.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Chang, Ji-Ho
Abrégé
The present invention relates to a method for manufacturing highly efficient multi-junction solar cells, and aims to address the technical subject matter of a method for manufacturing highly efficient multi-junction solar cells using II-VI compound semiconductors which is characterized by including a process consisting of growing a II-VI compound semiconductor thin film comprising no In on a GaSn substrate. Thus, light of entire wavelength band of solar light can be efficiently absorbed without requiring a material such as In, which is becoming expensive due to the expected exhaustion thereof, thereby significantly reducing the costs of fabricating a solar cell and enabling the implementation of a highly efficient solar cell at a low cost.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Choi, Hyeung Sik
Abrégé
The present invention relates to a gravity compensator of a motor for naturally compensating load moment according to a rotation angle of a load, wherein the load moment results from the gravity torque in accordance with the rotational angle. The gravity compensator comprises: a supporting frame; a rotational shaft which is prepared to allow the rotation thereof in relation to the supporting frame; a load which is fixed to the rotational shaft and is rotated together with the rotational shaft; a driving motor which provides a rotational force to the rotational shaft to drive the rotation of the rotational shaft; and a torsion bar which has one end thereof coupled to the rotational shaft to form a rotating end that rotates together with the rotational shaft and includes the other end thereof coupled to the supporting frame to form a fixed end that does not rotate with the rotational shaft. Gravity compensation can be performed with an even simpler structure compared to the prior art, and thus the invention can be applied to a very small-sized motor.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
JEONJU UNIVERSITY OFFICE OF INDUSTRY-UNIVERSITY COOPERATION (République de Corée)
Inventeur(s)
Song, Young-Chae
Yoo, Kyu-Seon
Lee, Song-Keun
Abrégé
The present invention relates to a floating-anode microbial fuel cell. More specifically, the present invention relates to a microbial fuel cell having an anaerobic unit, an electrode unit and an outflow unit. In this microbial fuel cell, the electrode unit includes an anode disposed to float horizontally on surface water and a cathode provided horizontally at the bottom of a cathode-reaction tank, and a separating layer for separating the cathode and the anode. The microbial fuel cell is characterised in that the cathode is immersed in, by way of example, a liquid substance containing organic matter and sewage or waste water flowing in a thin fashion horizontally in an anaerobic state, and the anode is formed in such a way that it floats horizontally on the water surface with one of its surfaces in contact with an air layer, while the other surface is in contact with the water layer on the water surface. The microbial fuel cell according to the present invention is advantageous in that it can continuously produce electric power with a high yield from the liquid substance containing organic matter such as sewage or waste water, and it allows the organic matter to be stabilised.
KOREA MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (République de Corée)
Inventeur(s)
Kang, In Ho
Abrégé
Provided is a band-pass filter using a λ/4 transmission line. According to an embodiment of the present invention, a band-pass filter using a support layer formed of a semiconductor wafer, a circuit unit constructed on the support layer or between multilayered insulating layers formed on the support layer, and a λ/4 transmission line formed on the circuit unit includes: at least one miniaturized λ/4 transmission line with capacitors connected in parallel to an input/output connection portion of a coupled line with ends shorted in the diagonal direction; and a ground plane surrounding the band-pass filter.