A fluorescence detection kit for the enzymatic activity of activated complement C1s, a detection method using the same, and use of the same are provided for a purpose of detecting the enzymatic activity level of the activated complement C1s in a sample. Specific capture and magnetic separation of C1s in a C1s standard or a sample to be tested are performed based on a magnetic bead precoated with a C1s recombinant antibody. After non-specific binders are removed, a fluorescence resonance energy transfer (FRET) fluorescein labeled substrate peptide for enzyme digestion by C1s is added, and a fluorescence signal in an obtained reaction system is detected with a microplate reader. Accordingly, the enzymatic activity of activated C1s is quantitatively determined by detecting changes of a fluorescence intensity.
A surface-enhanced Raman scattering (SERS)-based test kit for Staphylococcus aureus includes a magnetic nanosphere, gold/silver core-shell nanoparticles (Au—Ag NPs), Au nanoparticles (Au NPs), a SERS signaling molecule, a rolling circle amplification (RCA) template, a target aptamer, a complementary deoxyribonucleic acid (cDNA) and a single-stranded deoxyribonucleic acid (ssDNA). A detection method for S. aureus using the SERS-based test kit is also provided.
C12Q 1/6834 - Enzymatic or biochemical coupling of nucleic acids to a solid phase
C12Q 1/689 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms for bacteria
3.
Guide vane body with vortex suppression structure ring and axial-flow nuclear reactor coolant pump
Provided are a guide vane body with a vortex suppression structure ring and an axial-flow nuclear reactor coolant pump (RCP), including a rim cover plate, a hub cover plate, guide vane blades and a diffuser, where the hub cover plate is coaxially arranged in the rim cover plate, and a flow channel is placed between the hub cover plate and the rim cover plate, and a plurality of guide vane blades are placed in the flow channel in an array; and an outlet end of the hub cover plate is connected with the diffuser, and an outer wall of the diffuser gradually expands along a fluid flow direction; a diversion ring is arranged circumferentially on an inner wall at the outlet side of the rim cover plate, and the vortex suppression structure ring is placed at an outlet edge of the diversion ring.
A method for designing a cylindrical skiving tool without a geometric relief angle is provided. The method includes: designing a teeth number and a crossed shaft angle of a tool; calculating a barrel-shaped conjugate surface conjugated to a tooth surface of a to-be-machined gear; determining an offset of a rake face of the cylindrical skiving tool from a middle section of the barrel-shaped conjugate surface; designing a helix angle of the tool; designing a rake angle of the tool; calculating an edge profile of the rake face; obtaining design parameters and mounting parameters of the skiving tool; manufacturing the tool according to the design parameters of the tool, and performing skiving on a skiving machine according to the mounting parameters of the tool. The present disclosure provides a skiving method under a spatially-offset conjugate condition, to solve the problems of fast accuracy degradation and short service life.
B23P 15/36 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters for thread cutting
The present disclosure provides an air-assisted ultrasonic magnetization electrostatic nozzle, and belongs to the technical field of agricultural equipment. The air-assisted ultrasonic magnetization electrostatic nozzle includes a Laval tube, a liquid inlet section, a charging electrode plate, and a resonant cavity. After being accelerated by the Laval tube, an air impacts a liquid that enters through the liquid inlet section arranged at an outlet end of the Laval tube. The liquid is impacted into fine droplets and the fine droplets are positively electrified after passing through the charging electrode plate arranged at an outlet end of the liquid inlet section, to obtain electrified droplets. The electrified droplets enter the resonant cavity and are magnetized, to obtain magnetized droplets. The magnetized droplets are atomized and sprayed out by a metal film arranged at an outlet end of the resonant cavity. In the present disclosure, with the arrangement a metal oscillator, the Laval tube, and the charging electrode plate, the atomized droplets are magnetized and electrified, so that the atomized droplets are more effectively adsorbed on plants in an aeroponic chamber, to accelerate the root system growth of aeroponically propagated crops. With the arrangement of a temperature-regulating device, airflows with different temperatures can be output according to the temperature of the aeroponic chamber, so as to regulate the environmental temperature and promote the rapid growth of the plants.
A multi-task joint perception network model and detection method for traffic road surface information can simultaneously detect a lane line and a drivable area. A coordinate attention mechanism is integrated into a traditional feature extraction network to ensure that a feature extraction effect is enhanced while a calculated amount is not increased. In a neck network, a dilated convolution residual module is proposed to enhance performance of prediction of details by the network, and a decoder part shares features of the drivable area into lane line detection to enhance a lane line detection effect under complex road conditions. In a training stage, there is provided a alternating optimization training method to improve integral segmentation performance of the model. The multi-task joint perception network model and detection method realizes quite high accuracy and excellent speed performance in a challenging BDD100K dataset.
G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
G06V 10/26 - Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
G06V 10/32 - Normalisation of the pattern dimensions
G06V 10/77 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]; Blind source separation
G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
7.
PREPARATION METHOD OF NANOSCALED DYE@ZIF-8-BASED COLORIMETRIC SENSOR AND APPLICATION THEREOF IN FOOD QUALITY EVALUATION
A method of preparing a nanoscaled dye@ZIF-8-based colorimetric sensor is provided, in which a ZIF-8 nanomaterial is first prepared from Zn(CH3COO)2 and the 2-methylimidazole, and then the ZIF-8 nanomaterial is dispersed with ethanol and mixed with a colorimetric solution. The resultant mixed solution is added with polyethylene glycol-300 and applied to a substrate to obtain the nanoscaled dye@ZIF-8-based colorimetric sensor. This application further provides an evaluation method using the nanoscaled dye@ZIF-8-based colorimetric sensor, in which a back propagation neural network is established as the food quality evaluation model to evaluate the food quality.
G01N 21/78 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
A data optimization method for a food fermentation process is provided. Process data of the food fermentation process is acquired, and a multi-scale cross-correlation feature filter (MCFF) is constructed. Feature data corresponding to the process data is extracted in real time based on the MCFF, and processed. A data prediction model corresponding to the feature data is created through a machine learning method, and based on the data prediction model and an optimization algorithm, predicted optimization control data corresponding to the food fermentation process is generated in real time. A data optimization system is further provided.
A modeling method for electromagnetic forces and vibration response of a SPM machine, belonging to the field of combined electromagnetic field and structural mechanics computation. First, build the circuit-based EMN model, regular EMN model, and discrete EMN model with equivalent magnetic source and permeance for the different regions of the SPM machine. Second, based on the spatial relationships between each part in the SPM machine, the EMN models of each region are interconnected to form a complete model of the discrete EMN model. The non-sinusoidal high-frequency current harmonics are introduced as input excitation to the discrete EMN model. The global nonlinear matrix equation is solved simultaneously to determine the magnetic flux density in the air gap permeance elements, enabling the air gap electromagnetic force density calculation. Subsequently, the calculated electromagnetic force density is transformed into concentrated forces on the surface of the stator teeth.
G06F 119/14 - Force analysis or force optimisation, e.g. static or dynamic forces
10.
USE OF HUMAN UMBILICAL CORD MESENCHYMAL STEM CELL-DERIVED SMALL EXTRACELLULAR VESICLE (hucMSC-sEV) IN PREPARATION OF DRUG FOR TREATING TYPE 2 DIABETES MELLITUS (T2DM)
The present disclosure provides use of a human umbilical cord mesenchymal stem cell-derived small extracellular vesicle (hucMSC-sEV) in preparation of a drug for treating type 2 diabetes mellitus (T2DM), and belongs to the technical field of biomedicine. In the present disclosure, experiments have verified that the hucMSC-SEV can effectively reduce blood glucose in a db/db mouse model, improve a morphological disorder of pancreatic islets, and increase a number of β cells. Moreover, the hucMSC-sEV can also remodel pancreatic β cells by reversing apoptosis and dedifferentiation of the β cells. It is confirmed that the hucMSC-sEV is an effective pharmaceutical ingredient that improves pancreatic islet functions, and can effectively ameliorate T2DM, regulate glucose homeostasis, improve a pancreatic islet structure, and increase a quality of the pancreatic islet β cells, thereby achieving therapeutic effects from a root cause of the disease.
A dynamic antimicrobial hydrogel based on natural receptor-ligand recognition, and a preparation method and use thereof are provided. A ligand vancomycin and a receptor AA-based material each are first modified with a modification material, and then a photoinitiator is added to prepare a hydrogel material under irradiation of ultraviolet (UV) light. In the hydrogel, a three-dimensional (3D) network structure is formed through crosslinking. After undergoing a fracture under an external pressure, the hydrogel can rapidly heal itself through crosslinking due to a ligand-receptor interaction and a multi-hydrogen-bond interaction, which bio-mimicks a natural ligand-receptor interaction to realize the dynamics of the hydrogel material. The high antiomicrobial activity of vancomycin imparts the functionality of the hydrogel material; and the physiologically-derived monomer improves the biocompatibility and reduces the biological toxicity.
A preparation method for heterogeneous Mg alloys bar with high elastic modulus. It provides a preparation method of solid-liquid composite casting in a specific mold to produce the heterostructured metallic bars composed of high elastic modulus metal and low elastic modulus Mg alloy. Subsequently, the microstructure of heterogeneous Mg alloys bars is adjusted by the specific deformation and heat treatment. Heterogeneous Mg alloys bars without oxide inclusions and with good interfacial bonding were prepared through this method. The improvement of elastic modulus is obtained by tailoring the heterogeneous microstructure.
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
B22D 19/00 - Casting in, on, or around, objects which form part of the product
B22D 21/00 - Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
C22F 1/02 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
A counter-flow indirect dew-point evaporative cooler is provided, including a plurality of working channels provided parallel to each other, where adjacent working channels are separated from each other by a partition wall; in a gas flow direction, an interior of each working channel is divided into a dry channel and a wet channel; directions of airflow in the adjacent working channels are opposite, so dry channels and wet channels in the adjacent working channels are also oppositely provided, and thus the airflow in the adjacent working channels is in a counter-flow configuration; a product air outlet is provided at a junction of the dry channel and the wet channel; air to be treated enters the wet channel along a straight line from the dry channel to become working air, and obtained product air is discharged from the product air outlet.
A method for determining ciprofloxacin in a meat product based on an enzyme-linked upconversion fluorescence and potassium titanium oxalate system is provided. An enzyme-linked upconversion nanoparticle solution is mixed with an aptamer-bound magnetized polydopamine solution to obtain a fluorescence-ultraviolet dual-signal detection system. A fluorescence standard curve and a colorimetric standard curve for the ciprofloxacin content determination are created through the fluorescence-ultraviolet dual-signal detection system in combination with potassium titanium oxalate and hydrogen peroxide. A fluorescence intensity signal characteristic value and an ultraviolet absorbance signal characteristic value of a meat sample solution are determined. A ciprofloxacin content in the meat sample is calculated according to the fluorescence standard curve and the colorimetric standard curve.
The present invention belongs to the field of organophosphorus pesticide (OP) detection, and relates to a method for detecting an OP by a microfluidic chip based on a fluorescent sensing film. A porous fluorescent sensing film and the microfluidic chip are first constructed. The fluorescent sensing film is fabricated through layer-by-layer self-assembly of a platinum nanoparticle@oxalate-metal-organic framework (MOF) composite and a porous two-dimensional (2D) nanosheet, and has the functions of specifically detecting OPs and blocking macromolecular interferents. The microfluidic chip includes a sample channel, injection channels, reaction tanks, microfluidic channels, a detection tank, and an optical fiber channel, such that sample pretreatment and detection processes are integrated in the chip. An OP detection system is established by combining a portable constant-pressure syringe pump, a laser, a spectrometer, a signal transmitter, and a signal indicator, such that test devices are miniaturized and integrated and the OP detection is standardized.
A cryogenic laser shock device and method are provided. The device includes a cooling box, a transition chamber, a laser shock chamber, and a master control system. In the method, a sample is cooled by the cooling box, a temperature of the sample is measured in real time by a cryogenic probe, gas in the cooling box is pumped out after the temperature of the sample is stabilized to a set temperature, the cooling box is moved to the laser shock chamber in a vacuum state, and a cryogenic laser shock is implemented through cooperation of a mechanical arm and a three-dimensional motion platform.
A sphere precision machining device and a machining method comprise a cavity, an abrasive grain stream, and a circulation device. The cavity holds the workpiece, and comprises two hollow hemispheres, each of said two hemispheres being provided with a main flow channel. Said main flow channel is connected to the cavity. One end of the main flow path of each of the two said hemispheres is connected to a circulating means by which a stream of abrasive grains is made to grind the workpiece. A plurality of main flow channels are disposed homogeneously inside the hemisphere, each of said main flow channels being provided with a plurality of branch flow channels connected to the cavity, said branch flow channels tapering in the flow direction. The present disclosure uses the difference in abrasive grain flow pressure on the surface of the workpiece to achieve precision machining.
B24C 3/32 - Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
B24C 1/08 - Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. by making use of liquid-borne abrasives
B24C 9/00 - Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
18.
MULTI-FREQUENCY ULTRASOUND COUPLED MULTI-NOZZLE FOOD ADDITIVE MANUFACTURING DEVICE AND METHOD
A multi-frequency ultrasound coupled multi-nozzle food additive manufacturing device and method are provided. A multi-frequency ultrasound coupling printing system is set up on a multi-nozzle additive manufacturing device, which improves the rheological properties of high-viscosity and large-particle food ink by generating a cavitation effect through the high-frequency vibration of ultrasound and improves the printability of food ink while retaining the nutrients and texture of the food ink. The application of the multi-frequency ultrasound coupled multi-nozzle device to food additive manufacturing enables it to achieve a smaller nozzle diameter and higher printing speed than conventional additive manufacturing systems, which improves the printability of the food ink while realizing large-scale production. The multi-frequency ultrasound coupled multi-nozzle food additive manufacturing device and method can also improve the digestive and functional properties of foodstuffs by utilizing multi-frequency ultrasound, and enhance the sensory and nutritional qualities of the printed products.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
19.
DEVICE AND METHOD FOR MEASURING AND CALIBRATING GROUND PRESSURE OF SEEDING DEPTH LIMITING WHEEL
A device for measuring and calibrating the ground pressure of the seeding depth limiting wheels includes: a main body, connected to a pair of depth limiting wheels; a pressure adjusting member, arranged on the main body and configured to adjust a pressure of the depth limiting wheels to ground; a pressure sensor, arranged on the main body and configured to detect an actual pressure output by the pressure adjusting member; and a pressure acquisition calibrator, configured to detect a ground pressure applied by the depth limiting wheels on ground; and automatically fit a plurality of actual pressures and a plurality of ground pressures to establish a model for measuring ground pressure of a pair of depth limiting wheels. The device can automatically acquire a plurality of actual pressures and a plurality of ground pressures to establish a model for measuring ground pressure of a pair of depth limiting wheels.
A photoelectric detection model transfer and sharing method and an Internet of Things monitoring and evaluation system based on a cloud service are provided. The transfer and sharing method includes: invoking a temperature compensation model and a spectrum transfer model to calibrate spectrum information of agricultural product samples, and invoking a detection model to compute the calibrated spectrum information to obtain detection results of the agricultural product samples. The Internet of Things monitoring and evaluation system calibrates spectrum information by using a spectrum transfer and sharing method, invokes a detection model for computing, and returns detection results to a detection terminal in real time, thereby realizing remote monitoring and evaluation of the quality of agricultural products.
The present disclosure provides a variable-rate spray control system based on an annular application structure and a tree canopy volume (TCV) calculation method thereof. The TCV calculation method includes: acquiring in real time, by using vertical/horizontal scanning two-dimensional (2D) LiDAR, point cloud data of a variable-rate sprayer in motion in an orchard environment; acquiring speed information of the variable-rate sprayer by using a speed sensor; dividing spraying regions according to an angle at which contacts of nozzles on an annular application structure are mutually spaced on an arc; filtering interferences by setting a threshold range, calculating a sector area of a tree canopy according to trunk distance information from the horizontal LiDAR and point cloud information from the vertical LiDAR within the threshold range, and calculating a TCV in combination with the information of the speed sensor and a scanning cycle of the vertical LiDAR.
B05B 12/12 - Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target responsive to conditions of ambient medium or target, e.g. humidity, temperature
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
A tilt rotor-based linear multi-rotor unmanned aerial vehicle (UAV) structure for crop protection and a control method thereof are provided. The tilt rotor-based linear multi-rotor UAV structure for crop protection includes main lift power structures, tilt power structures, and a main frame structure, where the main frame structure is located in a middle; the main lift power structures are distributed at left and right ends of the main frame structure; and the tilt power structures are symmetrically distributed between the main frame structure and the main lift power structures. A vector power structure is adopted to ensure flexible attitude changes and smoother and more accurate UAV operations, and improve the operation efficiency. Meanwhile, the tilt rotor-based linear multi-rotor UAV structure is adapted to the complex working environment in China's ever-changing terrains.
A pressure self-controlled irrigation and pesticide application spray nozzle for a micro-irrigation system, the spray nozzle mainly comprising a spray nozzle body (1), a spray nozzle cap (10), a spring sleeve (7), flow guide holes (2), a spring washer (3), a mist spraying nozzle (4), a rotary acceleration chamber (5), a compression spring (6), circular-arc-shaped flow passages (8), a thread (9), refraction faces (11), an engagement recess, flow guide slots (15), a connecting rod movable hole (16), and a connecting rod (17). The spray nozzle is provided with a double-flow-passage structure. The spray nozzle body (1) is internally provided with the spring sleeve (7) and the spring washer (3). Water flow pressure is controlled to push the spring washer (3) to drive the spring sleeve (7) to move vertically, thereby achieving the switching between two operating modes, i.e., irrigation and mist spraying.
A01M 7/00 - Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
B05B 1/30 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
A driven gas-liquid separation starting device, a gas-liquid chamber is communicated with a pump channel, a rotation mechanism is arranged in the gas-liquid chamber; a second cam mechanism is arranged in a primary gas-liquid separation chamber, which is divided by a baffle and the second cam mechanism into primary gas-liquid separation units, spiral gas-liquid separation mechanisms in contact with the second cam mechanism are arranged the primary gas-liquid separation unit; a first cam mechanism is arranged in a self-priming chamber, a secondary gas-liquid separation chamber is in contact with a rolling pair through a supporting connecting rod, a volume of the secondary gas-liquid separation chamber is changed by rotation of the first cam mechanism, to carry out further gas-liquid separation on a mixed gas-liquid fluid with a high gas content obtained through separation in the primary gas-liquid separation chamber; an exhaust chamber is arranged on the self-priming chamber.
A hybrid transmission device with a mechanical continuously variable transmission and a control method thereof are provided. The device includes an input shaft assembly, a front planetary gear transmission assembly, a rear planetary gear transmission assembly, an output shaft, and a mechanical continuously variable transmission. Single transmission modes and hybrid transmission modes are implemented through combination and engagement/disengagement of brakes and clutches. The device and the method realize free switching among various transmission modes and integrates the single transmission modes and the hybrid transmission modes, thereby increasing the degree of freedom in adjustment and expanding the speed regulation range. Input and output shafts of a front cup wheel and ring disc transmission mechanism and a rear cup wheel and ring disc transmission mechanism are coaxial, so that the structure is compact and intermediate rollers can stably and reliably transmit large torque.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
F16H 61/66 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings
A mechanical-double ring-hydraulic composite transmission mechanism includes an input member, a convergence mechanism, a hydraulic transmission mechanism, a double ring mechanism, an output member, a clutch assembly, and a brake assembly. The clutch assembly connects a left planetary gear train to a right planetary gear train. The clutch assembly connects the input member to the hydraulic transmission mechanism, the double ring mechanism, the left planetary gear train, and the right planetary gear train. The clutch assembly connects the hydraulic transmission mechanism to the right planetary gear train. The clutch assembly connects the double ring mechanism to the left planetary gear train. The clutch assembly connects the left planetary gear train and the right planetary gear train to the output member. A continuous transmission ratio between the input member and the output member is provided by adjusting a displacement ratio of the hydraulic transmission mechanism.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
27.
OVERALL HYDRAULIC PERFORMANCE PREDICTION METHOD FOR SINK-TYPE DISHWASHER
Wenling Fluid Machinery Technology Institute, Jiangsu University (China)
Inventor
Wang, Xikun
Li, Yalin
Sun, Haichao
Gao, Yuhan
Li, Mingxuan
Fang, Yujian
Abstract
Method for predicting the overall hydraulic performance of a sink-type dishwasher. Process begins with unsteady numerical computation on a dishwasher pump under static conditions to obtain a characteristic pump curve. Using this curve, rotation velocity adaptation coefficient (Ad) and axial velocity coefficient (Bd) are determined. Mapping relationship is established between composite superposition virtual impeller and composite impeller. Passive rotation velocity of the volute and the nozzle flow rate are calculated using GMO model and virtual impeller. A jet mass source is established, using the nozzle flow rate and the volute's passive rotation velocity as boundary conditions. This leads to a non-submerged rotating jet flow computation with a multi-nozzle setup using the VOF method. This approach streamlines the dishwasher's intricate multi-physics, conserves computing resources, and effectively resolves issues related to free surface divergence and estimating the volute's passive rotation speed, leading to an accurate prediction of the dishwasher's overall hydraulic performance.
G06F 30/17 - Mechanical parametric or variational design
A47L 15/00 - Washing or rinsing machines for crockery or table-ware
G01M 99/00 - Subject matter not provided for in other groups of this subclass
28.
SUSPENDED SELF-BALANCING SELF-CRUISING ONLINE WATER QUALITY MONITORING DEVICE, ONLINE WATER QUALITY MONITORING METHOD, AND ONLINE WATER QUALITY ASSESSMENT METHOD
A suspended self-balancing self-cruising online water quality monitoring device, an online water quality monitoring method, and an online water quality assessment method are provided. The device includes a suspension cabin main body, a communication and control system, and a suspended carrying platform configured for self-balancing attitude adjustment. Suspension feet configured to drive the suspension cabin main body to implement self-balancing attitude adjustment, cruising, or fixed-point suspension are arranged outside the suspension cabin main body. The communication and control system is configured to plan a W-shaped water-region cruising path and sampling points thereon according to a topography of a water region, control the water sample testing device to test quality of water along the sampling points online, assess water quality of the water region according to an online testing result, and output the water quality of the water region. The device achieves precise positioning and self-cruise monitoring are achieved.
A superhydrophilic thick-film pH sensor based on chemical etching, and a preparation method thereof are provided. The superhydrophilic thick-film pH sensor includes: a substrate, and a working electrode and a reference electrode that cover surfaces of the substrate. The working electrode includes a titanium sheet attached to one side of the substrate; a front part of an outer surface of the titanium sheet is covered with a titanium dioxide sensitive layer; an electrically-conductive layer is attached to the other side of the substrate; the reference electrode is located on the electrically-conductive layer, and a surface of the reference electrode is coated with a naphthol layer; and an insulating gel wraps the substrate to expose only the working electrode and the reference electrode. The working electrode is obtained by soaking the titanium sheet in an 80° C. NaOH solution, and is integrated with the reference electrode to produce the thick-film pH sensor.
A rotary tillage, sowing, ditching and pressing compound operation machine includes a fertilization and sowing device, an intermediate rotary tillage and ditching device, a frame, a liftable ditcher, and a multi-stage press wheel device. The multi-stage press wheel device includes a front press wheel and a rear press wheel. The front press wheel includes a front press roller shaft, front press rollers, and connecting rods. The rear press wheel includes a connecting plate, a rear press roller shaft, and a rear press roller. A first end of the connecting plate is connected to the rear press roller shaft by a support, and the connecting plate is connected to the frame in a manner of a sliding pair. The rear press roller is mounted on the rear press roller shaft in a manner of a revolving pair, and the rear press roller is located behind the liftable ditcher.
A01B 35/08 - Other machines for working soil with non-rotating tools drawn by animal or tractor with rigid tools
A01B 61/04 - Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
A01B 63/00 - Lifting or adjusting devices or arrangements for agricultural machines or implements
31.
LASER PEEN FORMING DEVICE AND METHOD WITH ADJUSTABLE ABSORBING LAYER
The present disclosure provides a laser peen forming device and method with an adjustable absorbing layer. The laser peen forming device with the adjustable absorbing layer includes a laser peening system, an x-y-z three-axis machining platform, and a working tank, where the working tank is secured on the x-y-z three-axis machining platform; the laser peening system is located above the working tank; a laser irradiation system and a three-dimensional information acquirer are further arranged above the working tank; a workpiece, a tool anode, a heating device, and a temperature sensor are arranged in the working tank; the workpiece is connected to a cathode of an electric box; the tool anode is connected to an anode of the electric box; the tool anode is located above the workpiece and keeps a predetermined distance from the workpiece; and the working tank is connected to a phosphating solution flowing system.
A preparation method and use of a BiOX/N-doped biochar nanocomposite, where X is I or Br is provided. The preparation method includes the following steps: step 1: preparation of an N-doped biochar; step 2: preparation of an acidified N-doped biochar; and step 3: preparation of the BiOX/N-doped biochar nanocomposite. In the present disclosure, a discarded crayfish shell, crab shell, or tofu residue is used as a raw material to prepare the BiOX/N-doped biochar nanocomposite, to realize the transformation of a renewable biological resource from waste into treasure. A photoelectric sensor is constructed based on the BiOX/N-doped biochar nanocomposite that can realize the detection of adenosine triphosphate (ATP) or Escherichia coli (E. coli).
A cooperative control module, an adaptive cruise system and a control method thereof, and a vehicle are provided. The adaptive cruise system comprises a vehicle sensor module, a driving environment intelligent sensing module, a vehicle state response estimation module, an adaptive cruise and controllable suspension cooperative control module, and a power control module. The control method of adaptive cruise is optional, one is according to the cruise speed set by the driver, and the other one is according to the cruise comfort set by the driver. In the case of adaptive cruising according to cruise comfort, the optimal cruise speed is intelligently calculated by the adaptive cruise and controllable suspension system based on driving conditions and driver's demands. The controllable suspension is controlled cooperatively during cruising, and the suspension control parameters are adaptively switched according to the performance requirements of the vehicle under different driving conditions.
B60W 50/06 - Improving the dynamic response of the control system, e.g. improving the speed of regulation or avoiding hunting or overshoot
B60W 50/00 - CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
34.
Rapid fermentation method for shrimp paste based on combined strain fortification
Enterococcus faecalis X1 were deposited in the Chinese typical culture preservation center under preservation numbers CCTCC NO: M 2022487 and CCTCC NO: M 2022486, respectively. Two strains were employed to ferment the small hairy shrimp in two steps, utilizing each strain's properties, which enabled the fermentation capacity to be maximized to increase the fermentation speed and stabilize the quality. In addition, the pollution of miscellaneous bacteria is inhibited by strain-enhanced fermentation.
A physical simulation method for a forging process of a nickel-base superalloy includes: subjecting a nickel-base superalloy sample to heating, heat preservation, and quenching successively to obtain a pretreated sample; and subjecting the pretreated sample to heating, first heat preservation, cooling, repeated compression-cooling treatments, second heat preservation, and quenching successively to obtain a simulated sample, where the compression-cooling treatments are repeated at least three times. In the physical simulation method, multi-pass compression-cooling deformation is adopted to simulate a forging process of a nickel-base superalloy, and this forging simulation method is close to an actual forging process, has an excellent simulation effect and high operability, and involves simple operations. The physical simulation method is suitable for a variety of nickel-base superalloys of a same forging method. The simulated sample is not much different from a same part of a forging obtained after actual forging in terms of a structure and hardness.
G01N 1/44 - Sample treatment involving radiation, e.g. heat
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
36.
Three-layer fruit or vegetable preservative film with temperature-controlled release under mechanical driving power, and preparation method thereof
In the present disclosure, a temperature-sensitive inner layer solution, a deformation intermediate layer solution, and a rigid outer layer solution are first prepared and spray-coated layer by layer on a surface of a fruit or vegetable, such that three preservative film layers are produced successively and can be used for the preservation of the fruit or vegetable.
A method of strengthening through real-time coupling of electrical pulses and laser shock waves is provided. The initial time and duration of the electrical pulses are controlled to be matched with the initial time and duration of the laser shock waves, so that the electrical pulses and the laser shock waves are coupled in real time for material strengthening, the plasticity and the strength of the material are greatly improved, and a large area of the workpiece is uniformly strengthened. By simultaneously introducing the electrical pulses into the pulse current-assisted LSP, a great strengthening effect is achieved through the combination of the electrical pulses and the pulse current-assisted LSP in a short time, thereby reducing the internal defects of the material to a certain extent and further increasing the fatigue life of the material.
An insertion and deletion (InDel) molecular marker of a hisD gene of ultrasonically-mutagenized Salmonella typhimurium (S. typhimurium) and use thereof are provided. Through ultrasonic mutagenesis to S. typhimurium and sequencing, it is found that all InDel mutations occur in a core mutation region of the hisD gene. Therefore, the core mutation region is used as the InDel molecular marker to determine an insertion or a deletion of a gene reverse mutation, and the InDel molecular marker can also be used to analyze a relationship between a sequence of the hisD gene and a function of a protein encoded thereby.
C12Q 1/689 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms for bacteria
39.
Ratooning rice harvesting header and harvester including the same
The present disclosure provides a ratooning rice harvesting header and a harvester including the same. The ratooning rice harvesting header includes a multi-layer adjustable disc cutter, a header, and an ear cutter. The multi-layer adjustable disc cutter is mounted below the header and located below a rear portion of the ear cutter. The ear cutter is mounted at a front end of the header. The multi-layer adjustable disc cutter includes at least one group of multi-layer disc cutting assemblies. Each group of multi-layer disc cutting assemblies includes two multi-layer disc cutting assemblies. Each of the multi-layer disc cutting assemblies includes three layers of vertically arranged blades. The use of the multi-layer adjustable disc cutter in cooperation with the ear cutter can reduce the straw-grain ratio of the part cut from the crops to reduce the power consumption of the harvester.
A structure self-adjusting type vehicle-mounted magnetic suspension flywheel battery coping with multiple operation modes and an operating method thereof are provided. An ant-nest type channel is formed in a radiator of the flywheel battery along a circumferential direction, and a plurality of counterweight magnetic adsorption devices are symmetrically embedded in a flywheel lower sphere. When the flywheel battery operates in a charging mode, a standby mode or a discharging mode, the operation mode of the motor is flexibly changed according to different recovered energy levels or output energy levels, and the loss in the magnetic bearing system is reduced through matching of different types of magnetic bearings according to different disturbance levels. The low-loss, high-safety and stable operation of the vehicle-mounted magnetic suspension flywheel battery in various operation modes can be realized.
A single winding hybrid excitation magnetic field modulation motor includes a stator, a rotor, a winding and a permanent magnet. The stator includes a stator iron core, a permanent magnet and a winding. The stator iron core includes stator teeth and stator yoke. Each stator tooth is split into an equal number of split teeth facing the air gap side. All permanent magnets are embedded in the grooves between the split teeth on the same stator tooth, the polarity of all permanent magnets located on the same stator tooth is the same, and the polarity of the permanent magnets on the adjacent stator teeth is opposite. A single non-overlapping concentrated winding is wound on all stator teeth, and DC current and AC current are simultaneously passed into each set of windings, in which field winding and permanent magnet are excited together to form hybrid excitation.
H02K 3/28 - Layout of windings or of connections between windings
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
42.
Aluminum alloy flux-cored welding wire and fabrication method thereof
An aluminum alloy flux-cored welding wire and a fabrication method thereof are provided. In the present disclosure, a mixed salt is used as a filler for the flux-cored welding wire, and a reaction between the mixed salt and a welding base metal is directly induced through welding heat to produce in situ nanoparticles, which not only reduces a production cost of the welding wire, but also enhances the bonding between the added particles and the base metal through the prominent wettability between the in-situ enhancement particles and the base metal; and a rare earth element is added to significantly refine grains, which provides a new idea for the selection of a flux-cored welding wire for 7XXX aluminum alloy welding.
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K 35/28 - Selection of soldering or welding materials proper with the principal constituent melting at less than 950°C
B23K 35/36 - Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
B23K 35/40 - Making wire or rods for soldering or welding
43.
METHOD FOR HIGHLY-SENSITIVE AND RAPID DETECTION OF PESTICIDE RESIDUE BASED ON IMPRINTED METAL-ORGANIC FRAMEWORK PROBE
A method for highly-sensitive and rapid detection of a pesticide residue based on an imprinted metal-organic framework (MOF) probe is provided. A molecularly imprinted MOF enzyme-mimic probe is used as a colorimetric probe to catalyze the oxidation of a substrate, thereby enabling a color change of a system; a low-cost filter paper is used as a substrate for supporting the colorimetric probe, including a quality control zone, a standard zone, and a detection zone; in the quality control zone, the optimal colorimetric analysis parameters can be selected according to the temperature, humidity, and light, etc. of an environment to be tested; the standard zone is a standard colorimetric zone obtained through the dropwise addition of standards with different concentrations and is provided to establish a colorimetric analysis mathematical model; and the detection zone is provided for the detection of an actual sample.
G01N 21/78 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
G01N 21/77 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
44.
Adaptive device for header capable of performing lodging detection based on laser sensor and control method thereof
An adaptive device includes an transmission assembly and a laser sensor control assembly, where the transmission assembly includes a rotating shaft of a roller, a harvesting part, a motor base plate, a transmission belt of the harvesting part, a transmission shaft of a motor A, motor arms, the high-power motor A, a high-power motor B, a transmission shaft of the motor B, a transmission belt of the roller, and a rotating shaft of the harvesting part; and the laser sensor control assembly includes the motor base plate, upright lifting columns, a control base plate, a battery, a power distribution board, a voltage reduction module, electronic speed controllers, a main control board, a low-power motor, a laser sensor base plate, a laser sensor, tube clamps, a rotating shaft of the laser sensor, and a bearing for stabilizing the rotating shaft of the laser sensor.
A01D 41/12 - Combines, i.e. harvesters or mowers combined with threshing devices - Details of combines
A01D 41/127 - Control or measuring arrangements specially adapted for combines
G01S 17/88 - Lidar systems, specially adapted for specific applications
G05B 11/42 - Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
45.
METHOD AND DEVICE FOR INDUCED LOCALIZED ELECTRODEPOSITION ON BACK SIDE OF THIN-WALLED WORKPIECE THROUGH LASER IRRADIATION
A method used to repair a workpiece through a combination of laser and an electrochemical reaction is provided. A tool anode is arranged on the back side of the workpiece and is spaced therefrom. A laser beam is focused on an outer surface of the workpiece to realize localized repairing on the back side. The method realizes localized coating repairing on the back side of the workpiece through coordination between the thermal effect of the laser and the electrochemical deposition based on the characteristic of high thermal conductivity of the workpiece. The electrodeposition reaction does not occur in regions that do not need to be repaired. The operating process is simple, the cost of the plating solution is largely reduced, and the problem that the coating on the inner wall of the thin-walled workpiece is difficult to repair due to stripping is solved.
A Bacillus velezensis (B. velezensis) strain bred through ultrasound-assisted adaptive evolution and use thereof are provided. In the present disclosure, a B. velezensis strain (B. velezensis CICC 23571) is used as a starting strain, and an ultrasound-assisted adaptive evolution process is performed, where a proportion of organic nitrogen in a medium is continuously reduced and proportions of inorganic nitrogen and a sugar source are increased to obtain a B. velezensis mutant strain with a high polypeptide yield. Different metabolic pathways in the mutant strain are enhanced, such that the mutant strain can efficiently convert inorganic nitrogen into organic nitrogen or reduce the deaminization of organic nitrogen, and finally a yield of polypeptides is greatly increased.
A strong-robustness method for extracting early degradation features of signals and monitoring an operational status of a device is provided. Acquired vibration signal data of a rotating mechanical device is grouped at equal time intervals in a chronological order. Compression conversion is performed on the data, a newly defined function is solved, thereby a performance degradation index of the device is obtained. Data of the device in a normal status is obtained by determining an overall trend of an Exponentially Weighted Moving Average (EWMA) statistic, and a control limit for the EWMA statistic is constructed by using the data in the normal status. The calculated performance degradation index of the device is converted into an EWMA statistic, and the EWMA statistic is compared with the control limit. If the EWMA statistic does not fluctuate about a center line or exceeds the control limit, a monitored state is out of control.
The present disclosure provides a two-stage cavitation generator for organic wastewater treatment, including a shrouded impeller, a stator, and a rotor. The shrouded impeller includes a front cover plate, blades, and a rear cover plate. Several blades are evenly distributed between the front cover plate and the rear cover plate. A working surface of the blade is an arc surface, and a back of the blade protrudes locally, so that a flow channel between the back of the blade and a working surface of its adjacent blade is narrowed locally, forming a throat structure. An outlet of the shrouded impeller is provided with the stator and the rotor, and the stator is located at an outer edge of the front cover plate and fixed on an inner wall of a volute. The rotor is mounted on the rear cover plate.
The present disclosure provides a high-efficiency and low-damage potato combine harvester, including a digging device, a conveyance and separation device, a separation and elevation reversing device, a potato collection box, and a control unit. The digging device is provided at a front end of the potato combine harvester. The conveyance and separation device is provided behind the digging device, and configured to perform preliminary conveyance and separation on a potato-soil-stem mixture dug by the digging device. The separation and elevation reversing device is provided at a side of the conveyance and separation device, and configured to separate the potato-soil-stem mixture from the conveyance and separation device and elevate potatoes to the potato collection box. The potato collection box is located at a tail end of the separation and elevation reversing device, and configured to load the potatoes and feed weight information of carried potatoes back to the control unit.
A generalized autocorrelation method for bearing fault feature extraction under a variable rotational speed condition includes: resampling an original vibration signal in an order domain based on instantaneous phase information by using an order tracking processing method, to greatly weaken a frequency modulation phenomenon; further weakening background noise in consideration of a correlation between a plurality of adjacent fragments by using a generalized autocorrelation method; and controlling an accumulation of periodic disturbances by considering only a correlation between several adjacent signal fragments based on that conventional noise resistant correlation (NRC) methods consider a correlation between all signal fragments and cannot eliminate influence of accumulated periodic disturbances. Compared with the conventional methods, this method overcomes the difficulties caused by mutually restricting signal features, and achieves a better effect.
A method for three-dimensional (3D) characterization of a molybdenum disulfide sample based on machine learning (ML) includes: subjecting the molybdenum disulfide sample to optical imaging and atomic force microscopy (AFM) characterization; constructing and training a model through a random forest (RF) algorithm based on a dataset of a correspondence between a color feature of an optical image and AFM height data of the molybdenum disulfide sample; and inputting a color feature value of the optical image of the molybdenum disulfide sample into the model to acquire height data of the molybdenum disulfide sample, and filtering to remove a local noise and a local abnormal point, so as to acquire a final 3D characterization image. The present disclosure has high characterization accuracy and is helpful for scientific researchers to quickly analyze the thickness of a molybdenum disulfide sample through optical imaging without AFM or other characterization instrumentation.
G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
G06V 10/56 - Extraction of image or video features relating to colour
52.
ALUMINUM MATRIX COMPOSITE WITH HIGH STRENGTH, HIGH TOUGHNESS, HIGH THERMAL CONDUCTIVITY, AND GOOD WELDABILITY FOR 5G BASE STATION AND PREPARATION METHOD THEREOF
An AMC, and in particular to an AMC with high strength, high toughness, high thermal conductivity, and good weldability for a 5G base station and a preparation method thereof. A strip of the AMC with high strength, high toughness, high thermal conductivity, and good weldability for a 5G base station can be prepared by an electromagnetically and ultrasonically-controlled twin-roll continuous casting device developed and designed based on chemical composition designing, in-situ nanoparticle strengthening and refinement, and REM microalloying. The composite strip prepared by this technology has fine grains, nano-REM precipitated phases in grains, and in-situ nano-ceramic particles with high thermal conductivity at grain boundaries, which significantly improves strength, toughness, and thermal conductivity of the alloy at room temperature, and increases a grain boundary content and effectively improves roll cold weldability of the alloy strip since the alloy composition design with a low melting point and the significant grain refinement.
B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
B22D 11/115 - Treating the molten metal by using agitating or vibrating means by using magnetic fields
A gear-hydraulic-rhombic pyramid integrated multi-mode hybrid transmission device includes an input assembly, a hydraulic transmission mechanism, a front planetary gear mechanism, a rhombic pyramid-type continuously variable transmission mechanism, a rear planetary gear mechanism, an output assembly, a clutch assembly, and a brake assembly. The clutch assembly connects an output end of the input assembly to an input end of the hydraulic transmission mechanism and an input end of the front planetary gear mechanism. The clutch assembly connects an output end of the hydraulic transmission mechanism to the front planetary gear mechanism and the rear planetary gear mechanism. The clutch assembly connects the front planetary gear mechanism, the rhombic pyramid-type continuously variable transmission mechanism, the rear planetary gear mechanism, and the output assembly in sequence. The clutch assembly and the brake assembly provide a continuous transmission ratio between the input assembly and the output assembly.
F16H 47/08 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion
F16H 63/30 - Constructional features of the final output mechanisms
54.
Weldable in-situ nano-strengthened rare-earth metal containing aluminum alloy with high strength and toughness and preparation method thereof
The present disclosure relates to an aluminum alloy material, and specifically to a weldable in-situ nano-strengthened rare-earth metal (REM)-containing aluminum alloy with high strength and toughness and a preparation method thereof. In the present disclosure, in-situ nano-ceramic particles and REMs simultaneously introduced into an Al—Zn—Mg alloy can effectively refine the grains and significantly improve the strength and toughness of the alloy; and REM-containing nano-precipitated phases and in-situ nanoparticles distributed in the grains or at grain boundaries can also significantly increase a recrystallization temperature of the alloy, effectively inhibit the dynamic recovery, reduce the re-dissolution of alloying elements, and improve the weldability of the alloy.
C22C 21/10 - Alloys based on aluminium with zinc as the next major constituent
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/053 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
55.
USE OF ERGOTHIONEINE (EGT) FOR PREVENTION AND TREATMENT OF SEPSIS
The present disclosure discloses use of ergothioneine (EGT) for the prevention or treatment of sepsis. The present disclosure studies the anti-inflammatory mechanism of ergothioneine in sepsis, aiming to provide a therapeutically effective dose and reveal the signaling pathway ergothioneine probably acts on in the treatment of sepsis, and provide experimental data support for the understanding of the mechanism behind the systemic inflammatory reactions of sepsis and for the use of ergothioneine as a new drug for treatment. The present disclosure also provides ergothioneine (EGT) loaded on a nanocarrier, and use thereof in the prevention or treatment of sepsis.
A system includes a hollow shaft, a drum, an absolute encoder, a driving mechanism, a conveyor belt, a photoelectric sensor, and a controller. A structural optimization design method of the drum is provided on the basis of theoretical calculation of a seeding track of the drum-type seed-metering device, a theoretical model of a conveying position of a tray and a seed-metering angle is built with the aim of continuously sowing grains to the center of each hole, the conveying position of the tray and a rotating position of suction holes on the drum are monitored in real time on a seedling raising line, and a difference value between the actual position of the suction holes and the theoretical seed-metering angle and a change rate of the difference value are calculated and serve as input parameters to design a fuzzy controller of the rotation speed of the drum.
B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged
B65G 47/84 - Star-shaped wheels or devices having endless travelling belts or chains, the wheels or devices being equipped with article-engaging elements
57.
Method for preparing superhydrophobic surface of aluminum alloy through laser peening
The present disclosure provides a method for preparing a superhydrophobic surface of an aluminum alloy through laser peening, including the following steps: coating a surface of the aluminum alloy as an absorption layer with an organic component-containing confinement layer to obtain a coated aluminum alloy, where the organic component-containing confinement layer is a mixed organic solution including 5 mL to 10 mL of perfluorooctyltriethoxysilane (FOTS), 100 mL to 200 mL of absolute ethanol, and 30 mL to 50 mL of distilled water; and subjecting a surface of the coated aluminum alloy to the laser peening to form the superhydrophobic surface.
C23C 22/02 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using non-aqueous solutions
C23C 22/05 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
Based on a perception of an external environment of an autonomous vehicle, a driving style is recognized according to driving characteristic parameters indicating a driving aggressiveness degree and a mode shift preference, in response to a complexity of an individual driving behavior cognition. After the driving style is recognized, in accordance with group behavior characteristics of the motion bodies in the environment, a time-varying complex dynamical network is established based on a complex network with the motion bodies as nodes and roads as constraints, to serve as a complex environment model of the autonomous vehicle. Finally, the nodes in the complex environment model are parametrically represented to realize the node difference cognition of the complex environment. The nodes in the complex environment model are hierarchized by using an agglomerative algorithm to realize the hierarchical cognition of the complex environment.
The present disclosure provides a permanent-magnet fault-tolerant in-wheel motor based on an active sensorless strategy and drive and design methods thereof. The present disclosure proposes the permanent-magnet fault-tolerant in-wheel motor drive system based on an active sensorless strategy by considering sensorless operation performance in advance in a motor design stage. The present disclosure adopts fractional-slot concentrated windings, and ingeniously arranges alternating poles, a multi-layer magnetic barrier, and auxiliary permanent magnets, thus improving a sensorless operation accuracy of the motor while ensuring fault tolerance of the motor. The present disclosure proposes a frequency-band-adaptive secondary harmonic suppression strategy at a control layer to suppress an influence of a secondary salient harmonic on position observation and improve dynamic response performance of a system.
H02K 1/279 - Magnets embedded in the magnetic core
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
H02K 1/02 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the magnetic material
H02K 21/22 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
H02P 21/13 - Observer control, e.g. using Luenberger observers or Kalman filters
H02P 21/22 - Current control, e.g. using a current control loop
A rapid detection tool for a coaxial relationship based on a photosensitive material and a detection method using the same are used to detect coaxiality of two through-holes in the same workpiece to be detected. An image processing unit and a control unit are mounted outside a light-shielding box. Light sources, cameras, sensors, and an air cylinder are mounted in the light-shielding box. A photosensitive plate coated with a photosensitive resin is placed between the two holes, and two sides are irradiated by the light sources. Coordinates of centers of circular patterns formed on the photosensitive plate are calculated so that a coaxial relationship between the two holes can be accurately obtained. An output rod of the air cylinder is controlled to extend outward to reject a workpiece to be detected not meeting requirements.
Disclosed is a multi-model predictive control method for a Pichia pastoris fermentation process, including: dividing prior data into m training sample clusters by using a fuzzy C-means algorithm (FCM); obtaining, for each sample cluster, a corresponding prediction model by using a least squares support vector machine (LSSVM) and an improved particle swarm optimization method (IPSO); then, designing a corresponding predictive controller; and finally, calculating a deviation between an output of an object and an output of each sub-prediction model at each sampling time to establish a multi-model fusion predictive controller. According to the method, the adaptive ability of the model is improved and an actual state of a nonlinear system is described more accurately.
G05B 19/4155 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
62.
Continuous automatic twisting and winding device and method for polymer fiber artificial muscles
A continuous automatic twisting, and winding device and method for the polymer fiber artificial muscle are provided. The device includes a wire feeding mechanism, polymer fibers, a twisting mechanism, a winding mechanism, a translation mechanism, and a base plate. The center axis of the rolling bearing I in the wire feeding mechanism is horizontally aligned with the center axis of the spline shaft in the winding mechanism; the polymer fibers are generally nylon fibers, polyester fibers, etc.; the twisting mechanism, winding mechanism and the translation mechanism are mounted on the base plate; the twisting mechanism articulation seat in the twisting mechanism is fixed on the front support seat in the winding mechanism; the mounted bearing in the translation mechanism is connected to the spline shaft in the winding mechanism by interference fit. The guide rod in the translation mechanism is mounted on the rear support seat in the winding mechanism.
A method and a system for detecting pesticide residues in tea based on a surface-enhanced Raman scattering (SERS) sensor are provided. An octahedral gold-silver hollow cage-based sensor is prepared, mixed with a pesticide standard solution and analyzed to obtain SERS spectral data. The SERS spectral data is processed, and a quantitative model is established based on the processed SERS spectral data. Based on the quantitative model, the detection of thiram and pymetrozine in tea samples can be completed. By means of an octahedral cuprous oxide template, gold-silver octahedral hollow cage (Au—AgOHCs) nanomaterials are prepared by reduction of gold and silver ions and removal of the template by acid dissolution, so as to prepare the SERS sensor, which can be applied to the rapid and quantitative detection of thiram and pymetrozine in tea samples.
A process for smelting high-speed steel by using an intermediate frequency furnace-LF furnace-VD includes: firstly, melting a steel material in an intermediate frequency furnace, smelting until the steel material is melted, adjusting chemical components, and then performing deoxidation and slagging; performing electric heating for steel tapping, sending the steel tapping into an LF furnace for smelting, heating to 1470-1510° C., and adjusting the chemical components; and finally, sending these components into a VD furnace for vacuum treatment, and performing steel tapping after the components are qualified. A slagging process in the intermediate frequency furnace is used, then the coarse adjustment of chemical components, the primary deoxidation, and the slagging are performed in the intermediate frequency furnace. After the molten steel is sent to the LF furnace, the slag adjustment can be performed. A content of oxygen in the molten steel can be controlled within 10 ppm after the VD vacuum treatment.
The present disclosure relates to an eccentric extreme high-speed-rate laser hybrid manufacturing method for a rotary engineering component. By positioning an extreme high-speed-rate laser direct energy deposition machining head at a predetermined eccentric distance, the damage caused by reflected light to the machining head is effectively reduced, to prolong a service life of the machining head. Also a conventional form of a molten pool in extreme high-speed-rate laser direct energy deposition can be changed, namely from a “falling” form caused by a high-speed movement and a gravity to a “climbing” form. Thus, in extreme high-speed-rate laser direct energy deposition machining, the molten pool has a longer time to fully contact a surface of the rotary engineering component to form desirable bonding performance.
B22F 10/38 - Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
B22F 10/25 - Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
B22F 10/31 - Calibration of process steps or apparatus settings, e.g. before or during manufacturing
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 80/00 - Products made by additive manufacturing
66.
Method for photo-curing four-dimensional (4D) printing of multi-layer structure with adjustable shape recovery speed, and multi-layer structure prepared by photo-curing 4D printing
The present disclosure provides a method for photo-curing 4D printing of a multi-layer structure with an adjustable shape recovery speed, and a multi-layer structure printed thereby. The multi-layer structure printed by the method for photo-curing 4D printing of the multi-layer structure with the adjustable shape recovery speed includes a plurality of deformation units sequentially connected in series, and each of the plurality of the deformation units includes two slow layers, a fast layer, and a transition layer; and the fast layer is arranged between the two slow layers, and the transition layer is arranged between at least one of the two slow layers and the fast layer. In the present disclosure, a low cross-linking layer is doped with a nanocarbon light-absorbing material to solve the problem that the low cross-linking layer is prone to over-curing when a high cross-linking layer is printed on the low cross-linking layer.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29K 75/00 - Use of polyureas or polyurethanes as moulding material
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
An analysis of a surface mounted permanent magnet (SPM) machine by a 2D meshless method is provided. The 2D meshless method includes steps: discrete nodes are arranged in the region to be solved; based on Taylor expansion and weighted least squares principle, the derivative value of vector potential can be approximated as a linear combination of vector potential values of each node in the support region; partial differential equations are converted into algebraic equations; by solving the algebraic equations, the vector potential of each node can be calculated, and then the distribution of the flux line and the flux density can be obtained. According to the electromagnetic calculation constraints of the machine, parameters such as the back electromotive force and electromagnetic torque of the machine can be obtained.
A continuously variable transmission with both equal-difference output and equal-ratio output includes an input mechanism, a hydraulic transmission mechanism, a planetary-gear-set convergence mechanism, an equal-difference output mechanism, an equal-ratio output mechanism, a clutch assembly, and a brake. The clutch assembly connects an output end of the input mechanism to an input end of the hydraulic transmission mechanism and the planetary-gear-set convergence mechanism and connects an output end of the hydraulic transmission mechanism to the planetary-gear-set convergence mechanism. The clutch assembly connects the planetary-gear-set convergence mechanism to the equal-difference output mechanism and the equal-ratio output mechanism. The clutch assembly connects the equal-ratio output mechanism to the equal-difference output mechanism. A continuously changing transmission ratio between the input mechanism and the equal-difference output mechanism/the equal-ratio output mechanism is provided by adjusting a displacement ratio of the hydraulic transmission mechanism and selectively controlling engagement of the clutch assembly and the brake.
F16H 1/28 - Toothed gearings for conveying rotary motion with gears having orbital motion
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
F16H 3/12 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
F16H 37/02 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings
69.
Weakly-supervised sound event detection method and system based on adaptive hierarchical pooling
The present disclosure provides a weakly-supervised sound event detection method and system based on adaptive hierarchical pooling. The system includes an acoustic model and an adaptive hierarchical pooling algorithm module (AHPA-model), where the acoustic model inputs a pre-processed and feature-extracted audio signal, and predicts a frame-level prediction probability aggregated by the AHPA-module to obtain a sentence-level prediction probability. The acoustic model and a relaxation parameter are jointly optimized to obtain an optimal model weight and an optimal relaxation parameter based for formulating each category of sound event. A pre-processed and feature-extracted unknown audio signal is input to obtain frame-level prediction probabilities of all target sound events (TSEs), and sentence-level prediction probabilities of all categories of TSEs are obtained based on an optimal pooling strategy of each category of TSE. The disclosure has good versatility in being applicable to audio classification, complex acoustic scene, and locating in weakly-supervised sound event detection.
G10L 25/78 - Detection of presence or absence of voice signals
G10L 25/18 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
G10L 25/30 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the analysis technique using neural networks
70.
Method for reducing electromagnetic vibration of permanent magnet motor with fractional slot concentrated winding
The present disclosure provides a method for reducing the electromagnetic vibration of a fractional slot concentrated winding (FSCW) permanent magnet (PM) motor, which provides a guidance for the low vibration design of FSCW PM motor. The implementation of the method includes: Based on Nyquist Shannon sampling theorem, the modulation effect of electromagnetic force in the air gap is obtained, and the electromagnetic force component that contributes the most to the electromagnetic vibration of the FSCW PM motor is determined. The equivalent analytical model of PM flux density is established to obtain the phase relationship between different flux density harmonics. According to Maxwell stress equation, the internal relationship between each order of flux density harmonics and electromagnetic force harmonics is obtained. A new magnet structure of the PM motor is designed, and specific flux density harmonics are injected to reduce the electromagnetic force and electromagnetic vibration of the FSCW PM motor.
H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
H02K 5/24 - Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
H02P 21/05 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting
H02P 21/14 - Estimation or adaptation of machine parameters, e.g. flux, current or voltage
H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
71.
METHOD FOR HEAT-TREATING BORON STEEL, AND BORON STEEL WITH HIGH STRENGTH AND GOOD TOUGHNESS, AND USE THEREOF
The disclosure provides a method for heat-treating a boron steel, which includes: carburizing a boron steel on a surface thereof to obtain a carburized boron steel; austenitizing the carburized boron steel at a temperature of 885-895° C. for 25-35 min, to obtain an austenitized boron steel; sequentially subjecting the austenitized boron steel to an oil quenching and a tempering, wherein the oil quenching is performed at a temperature of 55-65° C. for 29-31 min.
A biosensing platform for in-situ sampling and target detection based on upconversion luminescence, including: an upconversion luminescent paper-based microfluidic device, an upconversion luminescent biosensor, and a portable detection device based on smartphone imaging. The upconversion luminescent paper-based microfluidic device is configured to sample a to-be-detected substance in situ. The upconversion luminescent biosensor is configured to allow a target to specifically recognize the to-be-detected substance. The portable detection device is configured to detect a content of the to-be-detected substance. The upconversion luminescent biosensor is prepared as follows. (S1) An upconversion nanoparticle seed is prepared. (S2) Core-shell upconversion nanoparticles are prepared. (S3) Core-shell-shell upconversion nanoparticles (UCNPs) are prepared. (S4) The UCNPs is subjected to hydrophilic modification. (S5) The hydrophilically-modified UCNPs are modified with DNA. (S6) The DNA-modified particles obtained from step (S5) are modified with a dye. The to-be-detected substance is 17β-estradiol (17β-E2).
A flexible guide vane structure of a mixed flow pump with adjustable flow area, a mixed flow pump and an adjustment method are provided. The flexible guide vane structure includes a flexible guide vane and a flexible guide vane adjusting device. The flexible guide vane adjusting device includes a support rib, a support rib base and a base driving mechanism. As the skeleton of the flexible guide vane, the support rib realizes the shape change of the flexible vane through the base driving mechanism and the support rib base. In the mixed flow pump, the flexible guide vane adjusting device is installed inside the blade hub. Through the flow section feedback regulation system, the angle of the support rib is adjusted based on the real-time working condition of the mixed flow pump to adjust the flow area of the blade and achieve the best working condition.
A stress and texture morphology controlling method for preparing a super-hydrophobic surface of an aluminum alloy by laser etching includes the following steps: pretreating a surface of an aluminum alloy; fixing a pretreated aluminum alloy to an ultrasonic vibration platform, continuously charging flowing liquid nitrogen to a to-be-machined surface of the aluminum alloy, and controlling a flow of the liquid nitrogen to cool the to-be-machined surface of the aluminum alloy and keep the to-be-machined surface of the aluminum alloy at a low temperature; keeping stable flowing of the liquid nitrogen on the to-be-machined surface of the aluminum alloy after the to-be-machined surface of the aluminum alloy is cooled, using the ultrasonic vibration platform to generate a high-frequency ultrasonic vibration field, and etching the to-be-machined surface of the aluminum alloy to form a super-hydrophobic textured micro-nano structure surface; and reducing a surface energy of the super-hydrophobic textured micro-nano structure surface.
An impeller wake vortex dissipation device under stall condition of a mixed flow pump includes a guide vane and a wake vortex dissipation device. The pump is evenly divided into n guide vane channels by N evenly distributed guide vanes. A wake vortex dissipation device is set in each guide vane channel, and one end of the wake vortex dissipation device is fixedly connected to the inner wall of the pump body. Therefore, each wake vortex dissipation device is located in the middle and upper part of the guide vane channel and does not occupy the lower guide vane channel; the wake vortex dissipation device is provided with a dissipative hole pair, which are used to dissipate the energy of the wake vortex of the impeller.
A method for conveying and dropping seedlings based on a device for conveying and positioning a seedling tray of an automatic transplanter, wherein the device for conveying and positioning the seedling tray of the automatic transplanter includes a platform for conveying the seedling tray, a first sensor, a second sensor, a plurality of push rods, and a control system. The platform is configured for conveying the seedling tray to be below seedling picking claws. The push rods are evenly distributed on the platform. The seedling tray is placed between adjacent two of the push rods. The first sensor is mounted close to the seedling picking claws and configured for identifying the seedling tray. The second sensor is mounted on a rack of the platform for conveying the seedling tray and configured for identifying the push rods. The control system controls the platform for conveying the seedling tray.
A microfluidic biosensing platform based on upconversion luminescence, including: an upconversion luminescence biosensor for specifically recognizing EDCs and a microfluidic chip. The microfluidic chip includes a sample injection pool, a biosensor injection pool, an arc-shaped channel, a separation channel and a detection pool. An inlet of the arc-shaped channel is communicated with the sample injection pool and the biosensor injection pool, and is configured for mixing and reacting the biosensor with the sample. The separation channel is communicated with an outlet of the arc-shaped channel, and is configured for magnetic separation of the biosensor. The detection pool is communicated with the outlet of the separation channel, and is configured for completing the enhanced luminescence-based quantitative detection of EDCs.
A bionic sweat gland and a bionic skin include a shell and a porous medium. A heat dissipation pipe is arranged inside the shell, that is filled with porous media. The pores formed by the porous medium in the heat dissipation pipe gradually decrease along the evaporation flow direction and the gap of the porous medium is filled with evaporation liquid. The shell is a permeable structure, which is used to absorb evaporation liquid from the environment. The top of the shell is provided with a number of through holes connected with the heat dissipation pipe for discharging evaporation liquid to the outside. The bionic sweat gland and the bionic skin can adapt to the effect of tensile and shear forces generated on the surface of flexible materials such as electronic skin during use.
B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
F28D 15/04 - 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 with tubes having a capillary structure
79.
Stator-based permanent magnet field-enhanced hybrid-excitation motor capable of operating under multiple working conditions and drive control method thereof
A stator-based permanent magnet field-enhanced hybrid-excitation motor capable of operating under multiple operating conditions and a driving control method thereof are provided. The motor includes a stator, excitation windings, permanent magnets, a rotor, armature windings, and an air gap. The stator is a structure with double-cross-shaped stator modules. A power converter of the motor by four H-bridges is formed. Incoming and outgoing ends of the excitation winding are each connected with a center point of one H-bridge arm, and incoming and outgoing ends of a three-phase winding are each connected with a center point of one H-bridge arm to form an open winding structure; the H-bridge of the excitation winding is connected in series with a bus of the open winding structure of the three-phase winding; every three bridge arms of the open winding structure form a group; and a switch transistor is arranged between each two groups.
H02K 19/12 - Synchronous motors for multi-phase current characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing
H02K 21/30 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets with armatures rotating within the magnets having annular armature cores with salient poles
A multi-intelligence federated reinforcement learning (FRL)-based vehicle-road cooperative control system and method at the complex intersection use a vehicle-road cooperative control framework based on the Road Side Unit (RSU) static processing module and the vehicle-based dynamic processing module. The historical road information is supplied by the proposed RSU module. The Federated Twin Delayed Deep Deterministic policy gradient (FTD3) algorithm is proposed to connect the federated learning (FL) module and the reinforcement learning (RL) module. The FTD3 algorithm transmits only neural network parameters instead of vehicle samples to protect privacy. Firstly, FTD3 selects only specific networks for aggregation to reduce the communication cost. Secondly, FTD3 realizes the deep combination of FL and RL by aggregating target critic networks with smaller Q-values. Thirdly, RSU neural network participates in aggregation rather than training, and only shared global model parameters are used.
A method for preparing a super-hydrophobic aluminum alloy surface through flat-topped laser peening includes the following steps: pretreating an aluminum alloy surface; evenly coating the pretreated aluminum alloy surface with a nanoscale carbon powder layer; performing unconstrained peening treatment on the aluminum alloy surface using a square spot flat-topped nanosecond pulsed laser with the nanoscale carbon powder layer serving as an absorption layer, where beams are kept perpendicular to the aluminum alloy surface all the time; and removing residual carbon nanopowder after the peening, and reducing surface energy of the aluminum alloy material through low-temperature heat treatment, to obtain a super-hydrophobic aluminum alloy surface with micro-nano multiscale structures. According to the present disclosure, the carbon content near the surface layer of the aluminum alloy material is increased, and the hardness and wear resistance of the prepared hydrophobic surface can be effectively improved.
A fluid-induced vibration energy harvesting apparatus with a non-rotating bluff body is provided. The apparatus does not use a common design method of rigidly securing a bluff body to an elastic beam in a design of the bluff body, but adopts a manner of connecting the bluff body and the elastic beam through a rotating shaft and a connecting shaft. Because a kinematic pair at a connection position is a rotating pair, the bluff body will only vibrate transversely and will not rotate, thereby achieving an effect of increasing an amplitude at the same frequency, and finally realizing an increase of converted electric energy and improving the conversion efficiency.
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
83.
Ultra-thin vehicle-mounted magnetic suspension flywheel battery and operating method thereof
An ultra-thin vehicle-mounted magnetic suspension flywheel battery for an electric vehicle and an operating method thereof are provided. A motor bracket, an axial flux motor, a flywheel, and an inner stator, a coil, and a permanent magnet of a five-degree-of-freedom magnetic bearing are coaxially arranged in a shell from top to bottom. The flywheel consists of an upper layer, a middle layer, and a lower layer which are continuous. An upper annular groove is formed in a middle of a flywheel upper annular layer of the upper layer. The axial flux motor is placed in the upper annular groove. An annular inner groove, a middle-layer annular cavity, and a lower annular groove are communicated with each other and jointly used for placing the inner stator, the coil, and the permanent magnet of the five-degree-of-freedom magnetic bearing.
A tumbler-type vehicle-mounted flywheel energy storage device with five-degree-of-freedom magnetic suspension support for an electric vehicle is provided. A flywheel is formed into a bowl by a metal flywheel rotor and a composite material ring by interference fit. The metal flywheel rotor comprises an upper-section ring, a mid-section hollow hemisphere, and a lower-section ring. The composite material ring is closely fitted outside the upper-section ring to form a bowl-shaped bowl opening part. An annular axial thrust disc protrudes inward in a radial direction from an inner wall on a bottom end of the upper-section ring. An area above the axial thrust disc is a bowl opening empty slot layer, and an area below the axial thrust disc is a sphere empty slot layer and a bowl bottom empty slot layer in sequence, which form an inner cavity of the flywheel. A supporting frame is fitted in an inner stator.
H02K 7/09 - Structural association with bearings with magnetic bearings
H02K 7/02 - Additional mass for increasing inertia, e.g. flywheels
85.
Unified open-circuit fault-tolerant control method for vector control drive system and direct torque control drive system of five-phase permanent magnet fault tolerant motor
A unified open-circuit fault-tolerant control method for a vector control (VC) drive system and a direct torque control (DTC) drive system of a five-phase permanent magnet fault-tolerant motor are provided. The control method adopts a unified open-circuit fault-tolerant control strategy. The unified open-circuit fault-tolerant control strategy includes: obtaining a predetermined torque, obtaining predetermined direct-axis and quadrature-axis voltages, analyzing a fault-tolerant mechanism to obtain fault-tolerant currents, obtaining winding phase voltages in a fault mode based on the fault-tolerant mechanism, and obtaining fault-tolerant voltages based on a back-electromagnetic force (EMF). The unified open-circuit fault-tolerant control strategy suitable for the VC drive system and the DTC drive system is proposed based on chaotic pulse width modulation (CPWM). The control method essentially reveals the fault-tolerant mechanism, and solves the problem of variable and complicated fault-tolerant control schemes corresponding to various basic control algorithms.
H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
H02P 21/22 - Current control, e.g. using a current control loop
H02P 21/05 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting
H02P 21/10 - Direct field-oriented control; Rotor flux feed-back control
86.
Apparent resistivity-depth section generating method for short-offset electromagnetic exploration
The present disclosure provides an apparent resistivity-depth section generating method for short-offset electromagnetic exploration, including: determining, in field zones divided quantitatively based on the induction number, positions of a recording point for each of observation points and frequencies or a time window thereof, and taking determined positions of the recording point as the assignment point for the observation point and the frequencies or the time window thereof, where one survey line of an axial configuration generates one apparent resistivity-depth section along the survey line; and one survey line of an equatorial configuration typically generates one apparent resistivity-depth section along the survey line, and apparent resistivity-depth sections along connecting lines from the observation points to the source which are the same as observation points in the number.
G01V 3/12 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with electromagnetic waves
G01V 3/28 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
87.
Adaptive quantitative sub-packaging method for fried rice with multiple side dishes in central kitchen and apparatus therefor
The present invention belongs to the technical field of food processing, and in particular, relates to an adaptive quantitative sub-packaging method for fried rice with multiple side dishes in a central kitchen and an apparatus therefor. The present invention mainly includes self-construction of a key side dish recognition model, self-evaluation of the key side dish recognition model, adaptive quantification of batch fried rice, and the apparatus matched with the three-step operation.
B65B 57/14 - Automatic control, checking, warning or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of articles or material to be packaged
B65B 25/00 - Packaging other articles presenting special problems
B65B 1/06 - Methods of, or means for, filling the material into the containers or receptacles by gravity flow
B65B 1/32 - Devices or methods for controlling or determining the quantity or quality of the material fed or filled by weighing
B65B 43/52 - Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using roller-ways or endless conveyors
88.
Material-based subdomain hybrid cellular automata algorithm for material optimization of thin-walled frame structures
The present invention provides a material-based subdomain hybrid cellular automata algorithm for solving material optimization of thin-walled frame structures, including an outer loop and an inner loop: the outer loop is to define and update the target cost for the inner loop; the inner loop is to adjust material using a PID control strategy according to the nominal flow stress of a current cell and the nominal flow stress of candidate materials, so that a current cost of the inner loop converges to the target cost. During the execution of the inner loop, the cellular material update rule based on the PID control strategy is employed to update cellular material, to define the candidate material library and the nominal flow stress, to update the nominal flow stress of current cell, to compare the nominal flow stress with the actual flow stress of each material in the candidate material library, to select the candidate material closest to the nominal flow stress as the selected material grade for the current cell and to replace the material parameters of the current cell with the mechanical parameters of the selected material. The present invention can efficiently solve nonlinear the dynamic response optimization problems containing a large number of material variables, significantly improving the robustness of the algorithm.
The present disclosure provides a portable apparatus for detecting early crop diseases based on spatial frequency domain imaging. The apparatus includes an end cover, a spatial frequency domain imaging apparatus, a dark box body, a telescopic section, and an opening-and-closing apparatus connected in sequence. The detection method includes: putting a crop sample to be detected into the dark box body from a bottom; projecting structured light of sine grey scale patterns with different spatial frequencies to the crop sample; after the sine gray scale pattern is switched each time, acquiring, by a camera, a diffuse reflection image of a surface of the crop sample once; after capturing all diffuse reflection images, performing uniformity correction on the images, demodulating the images, and extracting an alternating current component; and inputting an alternating current component image to a trained disease detection model, and determining whether the crop sample has a disease.
G06V 10/774 - Generating sets of training patterns; Bootstrap methods, e.g. bagging or boosting
G06V 10/46 - Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
A self-priming apparatus for quick no-water startup includes a front-stage inlet chamber, a middle-stage gas-liquid separation chamber, and a rear-stage gas-liquid separation chamber. A plurality of two-stage chamber gas-liquid separation one-way channels are symmetrically arranged between adjacent chambers of the front-stage inlet chamber, the middle-stage gas-liquid separation chamber and the rear-stage gas-liquid separation chamber. A plurality of one-way outlets are symmetrically arranged in an inner cavity of the rear-stage gas-liquid separation chamber. By decreasing or increasing the volumes of an outer cavity and an inner cavity of the front-stage inlet chamber, water is sucked in due to pressure difference and water intake and preliminary gas-liquid separation are carried out. The middle-stage gas-liquid separation chamber is configured for gas-liquid separation. By decreasing or increasing the volume of the inner cavity of the rear-stage gas-liquid separation chamber, water is rapidly expelled due to pressure difference and gas-liquid separation is carried out.
A multi-mode hydro-mechanical hybrid transmission device includes an input member, a hydraulic transmission mechanism, a mechanical transmission mechanism, a convergence mechanism, an output member, a clutch assembly, and a brake assembly. The clutch assembly connects an output end of the input member to an input end of the hydraulic transmission mechanism, the mechanical transmission mechanism, and the convergence mechanism. The clutch assembly connects an output end of the hydraulic transmission mechanism to the convergence mechanism. The clutch assembly connects the mechanical transmission mechanism to the convergence mechanism. The convergence mechanism is connected to the output member. Continuously changing transmission ratios are provided between the input member and the output member by adjusting a displacement ratio of the hydraulic transmission mechanism and selectively controlling engagement of the clutch assembly and the brake assembly.
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
F16H 61/70 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements
F16H 39/00 - Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
F16H 61/66 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings
92.
Pulse current-assisted laser peen forming and hydrophobic surface preparing method for aluminum alloy
A pulse current-assisted laser peen forming and hydrophobic surface preparing method for an aluminum alloy includes the following steps: placing a pretreated aluminum alloy onto a shock platform, where electrodes are respectively provided at two ends of the aluminum alloy, and flowing silicone oil covers a surface of the aluminum alloy; determining a laser energy; applying a high-frequency pulse current to the surface of the aluminum alloy through the electrodes, where a shot peening laser generates a laser beam according to the laser energy to shock the surface of the aluminum alloy, and under an action of an electrical pulse and laser shock, the aluminum alloy shows a bent arc-shaped surface, with a shock surface forming a porous micro-nano multi-stage surface; and performing chemical modification on the shock surface of the aluminum alloy to reduce a surface energy of the material, thereby obtaining a super-hydrophobic arc-shaped aluminum alloy surface.
An ultrasonic preparation method of protein peptide-polysaccharide nanoparticles loaded with bioactive components is conducted as follows: Chitosan solution containing 1% glacial acetic acid is added gently to the casein phosphopeptide solution containing quercetin stock solution in an equal volume under constant magnetic stirring; pH is adjusted accordingly before subjecting the mixture solution to ultrasonic treatment; after ultrasonication, the quercetin-loaded casein phosphopeptide-chitosan nanoparticles are obtained by freeze-drying. In the process of using the electrostatic interaction between the casein phosphopeptide and the chitosan to embed the quercetin, the present disclosure employed the multi-mode ultrasonic processing technology to facilitate the cross-linking of the polypeptide and the polysaccharide through the physical force of ultrasound. This enabled the complex encapsulation to incorporate additional bioactive components. The quercetin product exhibited excellent encapsulation efficiency, good water solubility, good light and thermal stability, and strong antioxidant properties, which significantly expanded the bioavailability of quercetin in the gastrointestinal tract.
A23L 33/105 - Plant extracts, their artificial duplicates or their derivatives
A23L 29/275 - Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of animal origin, e.g. chitin
94.
Magnetic field coupling analysis and modulation method for field-modulated permanent magnet motor based on harmonic group
A magnetic field coupling analysis and modulation method for a field-modulated permanent magnet motor based on a harmonic group is provided. The method includes: if a permanent magnet excitation source includes an outer surface-mounted permanent magnet and an intermediate permanent magnet and an armature magnetic source is an outer armature winding, acquiring a normal flux density component of an outer air-gap magnetic field of the motor; if the permanent magnet excitation source includes an inner surface-mounted permanent magnet and the intermediate permanent magnet and the armature magnetic source is an inner armature winding, acquiring a coupled flux density component of the outer air-gap magnetic field; calculating a coupling effect ratio, a harmonic characteristic factor, and a harmonic coupling efficiency in sequence from an air-gap flux density; determining positive and negative coupled harmonics according to the harmonic coupling efficiency; and establishing positive and negative coupled harmonic groups respectively.
The present disclosure provides a superparamagnetism-modified and neutrophil exosome biomimetic vesicle-based biological preparation for drug delivery, and a preparation method thereof, belonging to the technical field of engineered nanovesicle drug loading systems. The superparamagnetism-modified and neutrophil exosome biomimetic vesicle-based biological preparation for drug delivery prepared by the preparation method acts on tumor cell lines. It is found that the superparamagnetism-modified and neutrophil exosome biomimetic vesicle-based biological preparation for drug delivery can specifically target tumor cells, induce tumor cell apoptosis, and inhibit tumor growth. The biological preparation significantly extends a survival time of mice and improves an efficacy of drugs against cancers.
A61K 47/69 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
C12N 5/0787 - Granulocytes, e.g. basophils, eosinophils, neutrophils or mast cells
B03C 1/02 - Magnetic separation acting directly on the substance being separated
A61K 47/52 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an inorganic compound, e.g. an inorganic ion that is complexed with the active ingredient
96.
CHARACTERISTIC INFORMATION EXTRACTION METHOD AND PORTABLE DETECTION SYSTEM FOR SMALL-MOLECULE VOLATILE SUBSTANCES
A characteristic information extraction method of a small-molecule volatile substance, including: dividing a surface-enhanced Raman scattering (SERS) spectrum of the small-molecule volatile substance to obtain n wavelength subintervals, where n is a positive integer; sampling the n wavelength subintervals through weighted bootstrap sampling (WBS) to obtain Wwavelength subintervals, where W is a positive integer less than n; and screening the W wavelength subintervals to obtain desired wavelength subintervals. This application also provides a rapid detection method and a portable detection system of a small-molecule volatile substance.
A method of preparing a dye-functionalized flexible upconversion-luminescence solid-phase sensor, including: preparation of upconversion-luminescence nanoparticles, preparation of an upconversion nanoparticle-doped solid-phase sensor, and preparation of a dye-functionalized flexible upconversion-luminescence solid-phase sensor. A method for detecting a gaseous pollutant is also provided, including: preparing a dye-functionalized flexible upconversion-luminescence solid-phase sensor through the above method; establishing a prediction model; and substituting a fluorescence intensity of a sample into the prediction model to calculate the gaseous pollutant concentration in the sample.
G01N 21/78 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
98.
Quick no-water startup apparatus for centrifugal pump
A quick no-water startup apparatus for a centrifugal pump includes, from top to bottom in sequence, one-way passages (1), a self-priming chamber housing (41), sliding devices (5), a self-priming chamber (4), chamber partition plates (2) a concave-convex impeller (3), inlet channels (6) connected on two sides of the self-priming chamber (4), a spring device (7) of an upper-side x-shaped gas-liquid separation device, the upper-side x-shaped gas-liquid separation device (8), upper and middle-side gas-liquid separation device connecting shafts (9), a middle-side gas-liquid separation device (10), lower-side backflow-type gas-liquid separation devices (11), v-shaped backflow channels (122), an inverted v-shaped inlet channel (121), and an inlet. The quick no-water startup apparatus of the present invention enables the centrifugal pump to directly enter a normal operating condition after no-water startup, and 36 times of air exhaust can be completed while the concave-convex impeller (3) in the self-priming chamber (4) rotates by a circle in the early stage. Besides, the apparatus is provided with the upper, middle, and lower gas-liquid separation devices to fully realize separation of gas and liquid, so that gas can be exhausted more quickly and the chamber is filled with water. Therefore, the working efficiency is significantly improved and the operation process is greatly simplified.
Color sorting method for small-grain agricultural products combining area scanning photoelectric characteristic and line scanning photoelectric characteristic
A color sorting method for small-grain agricultural products combining an area scanning photoelectric characteristic and a line scanning photoelectric characteristic is provided. The present invention obtains an area scan image of small-grain agricultural product materials on a conveyor belt by using an area scan camera, which can accurately extract area array features of the materials and realize accurate identification of the unqualified materials. At the same time, the present invention can provide key parameters for accurate positioning during free falling of the materials while identifying the unqualified materials by using the area scan image, and can cooperate with the line scan positioning camera and the pneumatic nozzle to achieve high-speed elimination of the unqualified materials.
B07C 5/342 - Sorting according to other particular properties according to optical properties, e.g. colour
G06F 18/2134 - Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods based on separation criteria, e.g. independent component analysis
100.
MICROTEXTURED PROTON EXCHANGE MEMBRANE FOR FUEL CELL AND PROCESSING METHOD THEREOF
The present invention provides a microtextured proton exchange membrane for a fuel cell and a processing method thereof. A plurality of concave-convex composite textures are distributed in a gradient pattern of being dense inside and sparse outside on a cathode surface of the proton exchange membrane for the fuel cell. The plurality of concave-convex composite textures are petal-shaped and each include a pit and a protrusion. The protrusion is arranged along an edge of the pit, and a plurality of hemi-ellipsoidal micro-pits are uniformly distributed on an inner surface of the pit. The cathode surface is divided into a central region, an intermediate region, and a peripheral region according to distances between the adjacent concave-convex composite textures, and in each of the regions, the distances between the adjacent concave-convex composite textures are gradually increased from inside to outside in a gradient pattern.
patents
