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Transparent soil model test device for mining area pile foundation bearing force and test method
InactiveCN105696632ASimple test operationImprove scientific research efficiencyFoundation testingEmulsionSoil model
The invention discloses a transparent soil model test device for mining area pile foundation bearing force. The transparent soil model test device comprises a base, a sand box, a transparent soil model box, an electronic scale, a pile body, a loading device, a CCD industrial camera and a laser linear generator. The sand box is arranged on the base. An open hole is formed in the bottom of the sand box. The electronic scale is arranged below the open hole and used for measuring the weight of outflow sand. The transparent soil model box is embedded in the upper portion of the sand box. The bottom face of the transparent soil box is a layer of emulsion film and used for isolating transparent soil from sand soil. The pile body is arranged in the transparent soil. A pile cap is arranged at the pile top. The load is applied to the pile cap. The pile body is provided with marking points for monitoring displacement of the pile body. The laser linear generator is arranged on one side of the test device. By the adoption of the transparent soil model test device, mining subsidence caused by coal mining is simulated through a sand leakage method, so that the mining area earth surface soil mass subsidence process is simulated; and meanwhile, the method can be used for earth surface soil mass horizontal movement or vertical movement caused by similar human engineering activities by changing the sand leakage position and the pore size.
Owner:HENAN POLYTECHNIC UNIV
Device for testing underwater high-speed object generated along with supercavity
InactiveCN102095569ASignificant mutual disturbanceClarify the internal and external boundaries of vapor/liquid two-phase flowHydrodynamic testingInstabilityEngineering
The invention discloses a device for testing an underwater high-speed object generated along with supercavity, which comprises a high pressure gas source, a box body support rack, a high speed camera, an industrial personal computer, a membrane, a safety interceptor, a water tank, a water tank cover, a flat plate, a ball valve, a transmitting tube, a reinforced plate, a gas conduit, a fastening plate and a transmitting tube support rack. The object to be tested is driven and accelerated through nitrogen or helium released by the high pressure gas source and is then transmitted through the transmitting tube to enter the water tank filled with liquid, and when the object to be tested passes through the free face of the liquid from top to bottom and from bottom to top, a flow field having water inflow and water outflow generated along with the supercavity is generated. The generated supercavity flow has relatively clear inner and outer boundaries of a vapor / liquid two-phase flow, and with the help of various optical instruments and flow field visualization instruments, complex fluid dynamics behavior processes, such as the balance state of the gas inside vacuoles, the interaction of the free face and the supercavity, the instability of a vapor / liquid interface, the development of a turbulent boundary layer and the like, can be studied and comprehended.
Owner:ZHEJIANG SCI-TECH UNIV
Ping-pong competition information statistical system based on video processing technology
InactiveCN105426444AEasy to operateStrong real-timeGymnastic exercisingSpecial data processing applicationsWhole bodyStatistical analysis
The invention discloses a ping-pong competition information statistical system based on video processing technology. The ping-pong competition information statistical system comprises a competition video real-time acquiring and processing system, a competition data statistics and analysis system and a competition statistical information application system, wherein the three systems support one another and cooperate via an on-site local area network, so as to fulfill acquiring, processing, statistics, analysis and publishing of competition statistical information basic data together. The ping-pong competition information statistical system takes simple operation, and high real-time performance, accuracy and interactivity as technical principles, integrates the functions of competition statistical information acquiring, transmission, processing, saving and the like into a whole body, services ping-pong competition information statistics, and can provide competition statistical information to each player and each trainer of all participating teams quickly and accurately, so that the trainers can visually and conveniently research the application regularities of various technologies of the players in an on-the-spot competition and carry out adjustment promptly.
Owner:HOHAI UNIV CHANGZHOU
Near-field effect error analysis method
ActiveCN104063544AResearch intuitiveSpecial data processing applicationsArray elementRadio frequency
The invention relates to a near-field effect error analysis method and belongs to the field of radio frequency simulation. Conventional work such as three-element array antenna near-field effect error analysis in China is all based on analytic methods, which are simple, but cannot achieve accurate results and be applicable in an unlimited frequency range. Therefore the near-field effect error analysis method aims to meet the requirements on high frequency and high precision in radio frequency simulation. According to practical application, the near-field effect error analysis method starts with three array element of a three-element array, develops a computational electromagnetic numerical method, combines electromagnetic simulation software to simulate the near-field effect of a three-element array antenna simultaneously, an azimuth-angle and pitch-angle near-field effect error correction table, and obtains a correct target recurrence position through near-field effect error correction. The near-field effect error analysis method is simple and easy and meets the requirements on high frequency and high precision in radio frequency simulation.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Forced vibration damping compound pendulum experimental instrument
InactiveCN105280059AResearch intuitiveThe means of experimental measurement are advancedEducational modelsPush and pullLiquid crystal
Provided is a forced vibration damping compound pendulum experimental instrument. A compound pendulum formed by a rigid thin rod, a pendulum bob and an arc pendulum sheet is adopted to serve as a research object of forced vibration. The compound pendulum and a mobile rotating shaft are connected to form a whole body, which is disposed in a mobile rotating shaft box through a bearing. The compound pendulum can freely swing. The mobile rotating shaft box is disposed on a slide block and a linear guide rail. A speed regulation motor pushes and pulls the mobile rotating shaft box by means of an eccentric shaft on a driving wheel and also a connecting rod device, the circular motion of the eccentric shaft on the driving wheel of the motor is transformed to the reciprocating rectilinear motion of the mobile rotating shaft box, and then energy is transmitted for forced vibration of the compound pendulum. Furthermore, a non-contact type magnetic angle sensor is utilized to measure rotation conditions of the driving wheel of the speed regulation motor and the compound pendulum, and measured parameters and a corresponding changing curve are displayed on a colorful liquid crystal screen of an instrument host in a quantified manner.
Owner:南京千韵电子科技有限公司 +1
Launching device for water super cavity and high-speed object to access water
InactiveCN102322770ASignificant mutual disturbanceClarify the internal and external boundaries of vapor/liquid two-phase flowProjectilesEngineeringHigh pressure
The invention discloses a launching device for a water super cavity and a high-speed object to access water. The launching device comprises a high-pressure gas source, a box support frame, a high-speed photographing instrument, an industrial control computer, a diaphragm, a safety interceptor, a water tank, a ball valve, a launching tube, a flat plate, a pressure gauge, an electromagnetic valve, a tube valve connector, a cylinder valve connector, a high-pressure cylinder, a supporting plate, a supporting column, a gas conduit interface, a gas pressure measurement interface and a gas control switch. A tested object is driven and accelerated through nitrogen released by the high-pressure gas source, and is launched by the launching tube to enter the water tank; and when the tested object passes through the free surface of liquid from top to bottom and from bottom to top, a flow field together with inlet water and outlet water generated by the super cavity is generated. By using various optical instruments and flow field visualized instruments together, the collapse principle of cavitation bubbles around the object when the high-speed object accesses the water and the complex fluid dynamics behavior between two nonlinear free boundaries of the liquid surface and the cavity surface revolved when the high-speed object vertically accesses the water can be researched.
Owner:ZHEJIANG SCI-TECH UNIV
Forced-vibration damping pendulum
A damping pendulum serves as a study object of forced vibration, the pendulum which is composed of a pendulum rod which is made of a rigid thin rod and a pendulum bob is suspended on a moving rotating shaft through a central bearing and a bearing sleeve, a driving lever is fixed on the bearing sleeve which is connected with the pendulum rod of the pendulum, and the pendulum rod of the pendulum, the bearing sleeve and the driving lever are connected into a whole. The driving lever penetrates a piston rod lantern ring of an air damping cylinder which is installed above a damping box, and the driving lever drives a piston rod to move back and forth when the pendulum swings. The magnitude of the damping force exerted on the driving lever by the piston rod of the air damping cylinder can be changed by adjusting an air flow valve on the air damping cylinder. An adjustable-speed motor is connected with the damping box through a crankshaft connecting rod system, the moving rotating shaft is driven to conduct reciprocating linear motion in the horizontal direction through a clamping opening below the damping box, and the periodic compulsive force in the horizontal direction is provided for the moving rotating shaft, so that the pendulum obtains energy required for maintaining of the stable forced vibration state.
Owner:NANJING INST OF TECH
Probe for scanning probe microscope, preparation method of the probe, and detection method of the probe
ActiveCN105510638AEnables in situ characterizationReal-time detectionScanning probe microscopyMaterials scienceAtomic physics
The invention provides a probe for a scanning probe microscope. The probe is formed by a probe arm and a probe point, wherein the probe point includes a probe point body, a thermal resistance material layer, a conducting layer or a magnetic conducting layer; and the conducting layer is connected with the thermal resistance material layer, and is used for detecting changes of the thermal resistance material resistance. The probe can be used for in-situ representation for magnetism-electricity-heat multi-parameter of multi-function materials so as to visually research the coupling rule and mechanism between electricity-heat, magnetism-heat and magnetism-electricity-heat of the materials in situ.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Probe for scanning probe microscope, preparation method of the probe, and detection method of the probe
ActiveCN105510639AEnables in situ characterizationReal-time detectionScanning probe microscopyElectricityScanning electron microscope
The invention provides a probe for a scanning probe microscope. The probe is formed by a probe arm and a probe pointer, wherein the probe pointer is formed by a probe pointer body, a film 1, a film 2 and a film 3 which are arranged on the surface of the probe pointer successively; the film 1 is provided with conductivity; the film 2 is provided with electrical insulating properties; the film 3 is provided with magnetism and conductivity or the film 3 is provided with conductivity; the material of the film 1 is different from the material of the film 3; and the film 1, the film 2 and the film 3 form a thermocouple structure. The probe can be used for in-situ representation for magnetism-electricity-heat multi-parameter of multi-function materials so as to visually research the coupling rule and mechanism between electricity-heat, magnetism-heat and magnetism-electricity-heat of the materials in situ.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
AFM(atomic force microscope)-based method for testing surface roughness of aggregate
InactiveCN108333389AImprove clarityImprove accuracyScanning probe microscopyTechnology researchSurface roughness
The invention relates to an AFM(atomic force microscope)-based method for testing the surface roughness of an aggregate. The method comprises the steps of 1) preparing an aggregate test piece; 2) testing the surface roughness of the aggregate in the tapping mode of the AFM; 3) exporting the three-dimensional coordinate information obtained during the test through Nanoescape Analysis; 4) carrying out the validity verification on the contour arithmetic mean deviation Ra of the surface roughness of the aggregate; 5) detecting the distinguishing performance of the surface roughness of the aggregate by adopting an independent sample t in SPSS software. According to the AFM(atomic force microscope)-based method for testing the surface roughness of the aggregate, the AFM is used as a main tool inthe nano technology research and is applied to the fields of new-generation microelectronic chips, optical systems, new materials, bioengineering and the like. In the prior art, less research is conducted on the AFM technology for testing the surface roughness of the aggregate, and the analysis of the surface roughness of the aggregate is very limited. For the research on the surface roughness ofthe aggregate, most of the researchers adopt the fractal theory.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
Method and system for testing skid resistance of asphalt mixture based on digital image technology
PendingCN110738636AReduce sensitivityReduce energy consumptionImage enhancementImage analysisSoil scienceLaser scanning
The invention provides a method and a system for testing skid resistance of an asphalt mixture based on a digital image technology. The method comprises the following steps: preparing an asphalt mixture test piece; scanning the test piece by laser to obtain scanning data; acquiring a test piece structure evaluation index; and evaluating the skid resistance according to the structure evaluation indexes. According to the method, the three-dimensional coordinates of the asphalt mixture are obtained through laser scanning, the structure evaluation indexes of the asphalt mixture are calculated, andthe proper structure evaluation indexes are optimized and determined to evaluate the skid resistance of the asphalt mixture. The test method has low sensitivity to the environment; accurate data canbe obtained under various complex conditions, guiding significance is achieved for describing the local pavement microstructure to study the pavement skid resistance, operation is easy, energy consumption is low, the speed is high, a large amount of digital information can be stored in a short time, and study on the surface morphology of the bituminous mixture is visual and high in accuracy.
Owner:BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE +1
Power distribution network experiment network monitoring system
ActiveCN110380515AFlexible adjustmentEasy to buildEmergency protective circuit arrangementsFault location by conductor typesCommunication unitOptical Module
The invention discloses a power distribution network experiment network monitoring system. The system includes an operation unit, a control unit and a communication unit, wherein the operation unit includes a local module, a remote module and an adjusting module, one end of the local module is connected with the adjusting module and further sends a first signal, the other end of the local module and the remote module sends a second signal to the control unit, the control unit is connected with the operation unit and is used for receiving the second signal and identifying, processing and converting the second signal to form a third signal, the communication unit can receive the third signal and further feeds back a fourth signal to the control unit according to the third signal. The systemis advantaged in that phase-to-phase short-circuit faults and grounding faults of a distribution network small current grounding system are simulated, a physical dynamic model is utilized to more visually and effectively study fault characteristics of the small current grounding system, a grounding mode can be flexibly adjusted, and non-grounded systems can be easily constructed with local switchoperation or remote protocol remote control.
Owner:SHANGHAI WISCOM SUNEST ELECTRIC POWER TECH
Method for detecting passivation film of cold rolled electroplated tin steel plate
InactiveCN109579746AMeet the requirements of morphology characterizationResearch intuitivePreparing sample for investigationOptically investigating flaws/contaminationThree dimensional shapeOptical surface
The invention discloses a method for detecting a passivation film of a cold-rolled electroplated tin steel plate, which mainly solves the technical problem that the surface morphology and the uniformity of passivation film of the cold-rolled electroplated tin steel plate cannot be detected in the prior art. The invention provides a method for detecting the passivation film of a cold-rolled electroplated tin steel plate, comprising the following steps of: 1) preparing a base sample, and cutting it into cold-rolled annealed electroplated tin substrates with surface cleaned and a size of 10 mmx15mm as base samples; 2) electroplating the base sample to obtain a electroplated tin steel plate, and cutting the electroplated tin steel plate into three pieces of 10 mmx5 mm, respectively labeled assample 1, sample 2 and sample 3; 3) passivating the sample 2 and sample 3; 4) respectively measuring the three-dimensional shape of the sample 1, the passivated sample 2, and the passivated sample 3by a three-dimensional optical surface profiler. The method for detecting passivation film of cold rolled electroplated tin steel plate realizes the accurate detection of the passivation film of the cold-rolled electroplated tin steel plate.
Owner:SHANGHAI MEISHAN IRON & STEEL CO LTD
Electronic anti-escaping device
ActiveCN102968651AFriendly human-computer interfaceEasy to operateData processing applicationsCo-operative working arrangementsProgrammable read-only memoryReal-time clock
The invention relates to an electronic anti-escaping device. The electronic anti-escaping device comprises an electronic wristlet (01), a handset (02) and special host computer monitoring software (03). The electronic wristlet (01) comprises a power supply module (10), a global positioning system (GPS) module (11), an SI4432 wireless module (13) and a warning module (14) which are respectively connected with a central processing unit (CPU) module (12), wherein the power supply module (10) comprises a charging and electric quantity indication module (101) and a voltage conversion module (102). The handset (02) comprises a power supply module (20), a GPS module (21), an SI4432 wireless module (23), a 2.4-inch thin-film transistor (TFT) screen display module (24), an electronically erasable programmable read-only memory (EEPROM) module (25), a real-time clock module (26), a keyboard module (27), a secure digital (SD) card module (28) and a warning module (29) which are respectively connected with a CPU module (22), wherein the power supply module (20) comprises a charging and electric quantity indication module (201) and a voltage conversion module (202). The special host computer monitoring software (03) comprises a database management module (30) and a map information module (31). The handset (02) acquires position information of the electronic wristlet (01) in a wireless mode, and then transmits the position information to the special host computer monitoring software (03) through a universal serial bus (USB) interface.
Owner:HUZHOU ZHILI CHILDRENS CLOTHING DEV
Anti-slide pile soil arching effect evolution mechanism visualization model test device and test method
PendingCN109030781AConvenient researchResearch intuitiveEarth material testingSoil archingSheet steel
The present invention relates to an anti-slide pile soil arching effect evolution mechanism visualization model test device and a test method. The device comprises a visualization model box, a loadingdevice, standard sand, two-side baffle plates, a material dropping plate, a loading plate, a steel plate of a replacement pile, a cushion block and a digital camera arranged outside the visualizationmodel box. The method comprises the following steps: by using the loading plate, gradedly acting a load on the soil via the loading plate; rotating a bottom rotating plate to allow the material dropping plate to drop; loading until that the soil in the visualization model box is collapsed and damaged; and separately shooting the image(s) of the standard sand by the side of the visualization modelbox under the loads of all grades in the test process with the digital camera. According to the test device and the test method, the deformation and development law of the soil around the pile underthe action of the external load can be studied more conveniently and intuitively via the visualization model test.
Owner:SHANDONG JIANZHU UNIV +1
BANCR gene overexpression lentivirus vector, BANCR lentivirus, construction methods and application
InactiveCN106811485AResearch intuitiveUnderstand strong and weak expressionsFermentationVector-based foreign material introductionLentivirusViral vector
The invention provides a BANCR gene overexpression lentivirus vector, a BANCR lentivirus, construction methods and application, and relates to the technical field of molecular biology. The BANCR gene overexpression lentivirus vector is constructed on the basis of an LV5 lentivirus overexpression vector expressing green fluorescin, is integrated with a BANCR gene, solves the technical problem of an overexpression vector required in BANCR gene study, and allows the BANCR gene study to be more visual. The construction method of the BANCR gene overexpression lentivirus vector is simple in flow and high in positive rate. The BANCR lentivirus has high biological safety. In addition, the invention further provides the construction method of the BANCR lentivirus and the application of the BANCR gene overexpression lentivirus vector and / or BANCR lentivirus in preparation of a BANCR gene overexpression cell.
Owner:KUNMING MEDICAL UNIVERSITY
Horizontal projectile motion demonstration device for high school physics
InactiveCN111899608ACompact structureReasonable throw pathEducational modelsProjectile motionClassical mechanics
The invention provides a horizontal projectile motion demonstration device for high school physics. The device comprises a rack, a lifting table, a background roller shutter assembly, a ball feeding assembly, a ball serving assembly and a sand table, and the lifting table is arranged on the rack in a lifting mode. The background roller shutter assembly and the ball feeding assembly are arranged onthe upper side of a top plate of the lifting table. The ball serving assembly is arranged on the lower side of a top plate of the lifting table. The ball serving assembly is connected to the lower end of the ball feeding assembly; a roller shutter of the background roller shutter assembly moves up and down between the machine frame and the lifting table, the sand table is arranged on the rack andlocated on the lower side of the roller shutter, a rail at one end of the ball serving assembly extends to one side of the roller shutter, and square paper is detachably arranged on the front side ofthe roller shutter. The horizontal projectile motion demonstration device provided by the invention solves the problems that an existing demonstration device is not visual in physical horizontal projectile motion demonstration process and a horizontal projectile motion path cannot be recorded.
Owner:郭俊滔
Device for recording level and obligue throw motion track
The utility model relates to a device which can record the trajectories such as level throw and obligue throw, belonging to the experimental device field, which comprises an iron plate (1), a lodestone (2), a piece of trajectory record paper (3), a level-throw motion orbit (4), an obligue-throw motion orbit (5) and a liquid injector (6). The utility model has the advantages of simple structure and convenient usage; with the device, the student can research, observe and analyse the trajectories of object motion more intuitively and more clearly; thus the device is suitable for experiments of schools and research institutions with very strong practicability.
Owner:XIANGMING MIDDLE SCHOOL SHANGHAI
RT-PCR primer and method for amplifying estrogen receptor alpha genes in female chinemys reevesii
InactiveCN107653302ARapid expansionAccurate amplificationMicrobiological testing/measurementDNA/RNA fragmentationTotal rnaGene
The invention discloses a RT-PCR primer and method for amplifying estrogen receptor alpha genes in female chinemys reevesii. The RT-PCR primer comprises a primer pairs as shown in SEQ ID No:1 and SEQID No:2. The method comprises the following steps: 1) extracting total RNA of a to-be-amplified sample; 2) reversely transcribing the extracted total RNA into cDNA; 3) amplifying the cDNA by using theRT-PCR primer; PT-PCR primer is the PT-PCR primer. According to the invention, a set of RT-PCR primers are designed, the total RNA of the to-be-amplified sample is extracted, and then reverse transcription is conducted to obtain the cDNA. The cDNA is amplified by using the RT-PCR primer. Under the premise of cost reducing, a great number of estrogen receptor alpha genes in female chinemys reevesii fallopian tubes are amplified rapidly and accurately, and large-scale and more intuitive studies of the estrogen receptor alpha genes in the female chinemys reevesii are effectively achieved.
Owner:ANHUI NORMAL UNIV
Method for observing transformation surface relief of eutectoid steel pearlite by confocal laser microscope
ActiveCN101532963BQuick researchResearch intuitiveMaterial analysis by optical meansCrucibleLaser Microscopy
A method for observing transformation surface relief of eutectoid steel pearlite by a confocal laser microscope belongs to the field of metallographical detection of material, and is characterized in that a sample is put in a heating crucible of a confocal laser microscope after polishing in the first step, and argon is used for protecting atmosphere after creation of vacuum; heating is carried out till the austenitizing temperature of 850 to 900 DEG C and heat preservation lasts 150 to 180 seconds in the second step; cooling is carried out till the temperature of 600 to 710 DEG C with the cooling speed of 3 to 7 DEG C per second. The invention solves the problem that the transformation surface relief of eutectoid steel pearlite is difficult to be observed by the confocal laser microscope, thereby obtaining the method for observing transformation surface relief of eutectoid steel pearlite by the confocal laser microscope.
Owner:SHOUGANG CORPORATION
Launching device for water super cavity and high-speed object to access water
InactiveCN102322770BSignificant mutual disturbanceClarify the internal and external boundaries of vapor/liquid two-phase flowProjectilesEngineeringHigh pressure
Owner:ZHEJIANG SCI-TECH UNIV
Simulation fault device with temperature control
PendingCN109839576AEasy to buildScientific and reasonable designFault locationDynamic modelsEngineering
The invention discloses a simulation fault device with temperature control, which includes a housing with accommodation space. The housing also includes a front panel for adjustment and a rear panel for wiring, and the rear panel includes a power supply terminal and a power switch; the power supply terminal is provided with L, N, G terminals; the accommodation space is internally provided with a processing unit capable of simulating occurrence of a fault; the processing unit also includes a radiator, a partition board and a motherboard; and the radiator is arranged in placement space formed byepoxy boards. The device disclosed in the invention is mainly used to simulate an inter-phase short-circuit fault and a grounding fault of a distribution network grounding system, the physical process and the phenomena of the original system can be reflected more intuitively, research on the fault characteristics of the small current grounding system by adopting a physical dynamic model is more intuitive and effective, the grounding mode can be adjusted flexibly, and through local switch operation or remote protocol remote control, a non-grounding system can be easily constructed.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD SUQIAN POWER SUPPLY BRANCH +2
A probe in a scanning probe microscope, its preparation method and detection method
ActiveCN105510639BEnables in situ characterizationReal-time detectionScanning probe microscopyElectricityScanning electron microscope
The invention provides a probe for a scanning probe microscope. The probe is formed by a probe arm and a probe pointer, wherein the probe pointer is formed by a probe pointer body, a film 1, a film 2 and a film 3 which are arranged on the surface of the probe pointer successively; the film 1 is provided with conductivity; the film 2 is provided with electrical insulating properties; the film 3 is provided with magnetism and conductivity or the film 3 is provided with conductivity; the material of the film 1 is different from the material of the film 3; and the film 1, the film 2 and the film 3 form a thermocouple structure. The probe can be used for in-situ representation for magnetism-electricity-heat multi-parameter of multi-function materials so as to visually research the coupling rule and mechanism between electricity-heat, magnetism-heat and magnetism-electricity-heat of the materials in situ.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Time sequence control measuring device and method based on supersonic vortex structure
InactiveCN111579209ASolve randomnessSolve the problem that the driving section pressure cannot be adjusted accuratelyHydrodynamic testingControl systemMechanical engineering
The invention discloses a time sequence control measuring device and method based on a supersonic vortex structure. The device comprises a supersonic vortex generating device, and a measurement control system and a membrane rupturing device which are connected with the supersonic vortex generating device, wherein the membrane rupturing device is arranged at one end of the supersonic vortex generating device, the measurement control system is connected with the supersonic vortex generating device through a sensor to collect pressure signals and carry out image collection by taking the pressureas a triggering condition, and flow field information of supersonic vortexes at a specific moment is obtained by setting delay time of the control system. According to the method, compressible vortexstructures with different modes can be accurately controlled and generated, the pressure of the driving section is accurately adjusted, and the supersonic compressible vortex structure is rapidly andeffectively obtained.
Owner:SHANGHAI JIAO TONG UNIV
A transparent soil model test device and test method for pile foundation bearing capacity in mining area
The invention discloses a transparent soil model test device for mining area pile foundation bearing force. The transparent soil model test device comprises a base, a sand box, a transparent soil model box, an electronic scale, a pile body, a loading device, a CCD industrial camera and a laser linear generator. The sand box is arranged on the base. An open hole is formed in the bottom of the sand box. The electronic scale is arranged below the open hole and used for measuring the weight of outflow sand. The transparent soil model box is embedded in the upper portion of the sand box. The bottom face of the transparent soil box is a layer of emulsion film and used for isolating transparent soil from sand soil. The pile body is arranged in the transparent soil. A pile cap is arranged at the pile top. The load is applied to the pile cap. The pile body is provided with marking points for monitoring displacement of the pile body. The laser linear generator is arranged on one side of the test device. By the adoption of the transparent soil model test device, mining subsidence caused by coal mining is simulated through a sand leakage method, so that the mining area earth surface soil mass subsidence process is simulated; and meanwhile, the method can be used for earth surface soil mass horizontal movement or vertical movement caused by similar human engineering activities by changing the sand leakage position and the pore size.
Owner:HENAN POLYTECHNIC UNIV
Micro-combustor for visualization research
InactiveCN109210534AResearch intuitiveEasy to placeGaseous fuel burnerCombustorBiochemical engineering
The invention discloses a micro-combustor for visualization research. The micro-combustor is characterized in that a base, a boss, thread holes, combustors, an air outlet, a plurality of filter screens, a groove and an air inlet are included; the air inlet is formed in the lower end of the base; fuel and an oxidizer are mixed inside the air inlet; the boss is arranged at the other end of the base;the combustors are installed on the base to form communication through the thread holes; the filter screens with different mesh numbers are arranged between the boss and the groove. In considerationof materials of the combustors being quartz glass, the morphological structure of flames and the transition law of unstable flames in the combustion process can be observed intuitively, and certain visualization research value is achieved.
Owner:JIANGSU UNIV
Metalloenzyme active site comparison method based on pharmacophore and alpha-carbon characteristics
ActiveCN113077840AAccurate identificationComprehensive representationMolecular designProteomicsPharmacophoreSolvent accessibility
The invention discloses a metalloenzyme active site comparison method based on pharmacophore and alpha-carbon characteristics. A large number of metalloenzyme crystal structures are collected to construct a metalloenzyme information library, active sites of each metalloenzyme are identified based on a metal ion and solvent accessibility principle, and a pharmacophore characteristic model and an alpha-carbon characteristic model are constructed according to surface atoms and surface amino acids of the active sites; and by performing similarity comparison and crystal structure superposition on the target metalloenzyme and the active site feature model in the metalloenzyme information base, and comprehensively considering similarity scoring and superposed structure features, and other metalloenzymes similar to the active site of the target metalloenzyme are outputted. According to the method, pharmacophore characteristics and structural characteristics of active sites are comprehensively considered, and information of the active sites of the metalloenzyme is accurately and comprehensively represented; and according to the method, when an active site similarity result is obtained, a metalloenzyme crystal structure is superposed, metalloenzyme similar to target metalloenzyme is obtained, visual analysis is more sufficient and detailed, and more clues are provided for drug discovery of the target metalloenzyme.
Owner:SICHUAN UNIV
Substance for treating and/or preventing tumors, and design method and preparation method thereof
PendingUS20220008462A1Uniform and stableConducive to survivalMammal material medical ingredientsImmunological disordersDiseaseBiological body
Provided is a method of designing and preparing a substance for treating and / or preventing a tumor, wherein, a stable structure corresponding to a tumor-related substance is used as the substance for treating and / or preventing the tumor. The essence of disease is the imbalance of organism structural system. The imbalance of the structure of substance in the organism structure system will cause diseases related to the substance. Disclosed is a method that the organism regulates genes or the expression of genes, restores the balance of the structures of substances in the organism structural system, and treats and / or prevents a disease related to the tumor, through the self-adaptation and self-organization of the structure system of the organism after recognizing the stable structure corresponding to the substance.
Owner:DONG FUTIAN
Computerized Fluidic System and Methods of Use for Characterization of Molecular Networks in Complex Systems with Automated Sampling, Data Collection, Assays and Data Analytics
PendingUS20220246243A1Reduces infrastructure and staffing needResearch intuitiveData visualisationBiostatisticsMolecular networkAssay
Our biology, in health and disease, is characterized by multiple cooperating molecules in highly regulated networks. Derangements of these networks can identify imminent severe worsening of disease, known as “the tipping point”. Identifying this change early has been shown to predict worsening, but also, to reveal opportunities for specific molecular therapies to halt disease progression. Unfortunately, there are no tools currently available to characterize molecular networks in humans or to see important changes coming. The current invention is a computer system linked to computer networks and data sources, to micro- and milli-fluidic sampling and assay devices. It uses advanced data analytics to examine the available data and to learn how to recognize impending trouble at a time when there are recognizable processes to block, and before it is too late for treatment.
Owner:ROSENBLOOM ALAN JOHN
A method for adsorbing uranyl in waste water by using silica composite material
ActiveCN106710659BImprove adsorption capacityEasy to recycleRadioactive decontaminationSorbentSolid particle
The invention discloses a method for adsorbing uranyl in waste water with a silicon dioxide composite. The method comprises the following steps that 1, a silicon dioxide material is utilized for carrying out normal pressure micro plasma discharging treatment, and therefore an adsorbent is prepared; 2, the waste water containing uranyl is adjusted till the pH ranges from 4 to 6.8, the adsorbent is put in the waste water, stirring and adsorbing are carried out for 36 h to 48 h, after filtering, filtrate is centrifugally treated to further separate solids in the waste water, and the solid particles are collected. The method is easy to operate, high in adsorption efficiency and good in waste water treatment effect, the adsorption effect can be monitored in real time, and good industrial practical prospects are achieved.
Owner:江西城宏实业有限公司
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