573 results about "Experimental model" patented technology

Variant human MLH1 and MSH2 genes are provided. Methods of using these variant genes to diagnose hereditary non-polyposis colorectal cancer (HNPCC) and / or determine a patient's susceptibility to developing HNPCC are also provided. Methods and compositions for identifying new variant MLH1 of MSH2 genes are also provided. In addition, experimental models for hereditary non-polyposis colorectal cancer comprising these variant genes are provided.

An optical metrology system includes model approximation logic for generating an optical model based on experimental data. By eliminating theoretical model generation, in which the fundamental equations of a test sample must be solved, the model approximation logic significantly reduces the computational requirements of the metrology system when measuring films formed on patterned base layers. The experimental model can be created by selecting an expected mathematical form for the final model, gathering experimental data, and compiling a lookup model. The lookup model can include the actual measurement data sorted by output (attribute) value, or can include “grating factors” that represent compensation factors that, when applied to standard monolithic model equations, compensate for the optical effects of grating layers.

Method of cyclic anchoring itinerant (CAI) propulsion uses a phenomenon of anchored float horizontal motion as wave rises. The method repeats a cycle: Detaching the anchor from an immobile medium as a wave begins descent; Accelerating it in new position as the wave descends; Reattaching it to said medium as a wave rises. The medium can be railway or water. Respectively a trolley or a glider works as the anchor. To drag as anchor the glider orients perpendicular to the link. Improvements: adding an auxiliary propeller accelerating the glider, connecting bow and aft gliders with a single boom, making it telescopic, adding a small submarine hull for permanent observation water space, scientific researches, entertainment. The method allows to reequip watercrafts to all-weather, ocean going watercrafts with an unlimited range of operation. These solutions can be widely used in marine rescue remedies. Experimental models of CAI propulsion system show remarkable results.

The invention provides a simulation test system and a simulation test device of train network control software. The simulation test device comprises a man-machine interaction unit, a controlled plant creating unit, a vehicle-mounted electrical connection creating unit, a simulation interface creating unit and a simulation control unit, and the simulation test system of the train network control software comprises at least one group of pull-in control unit test systems; each pull-in control unit test system comprises the simulation test device and at least one set of network control system core equipment which comprises a central control unit, the central control unit is switched into a vehicle bus and a train bus, and the simulation test device is switched into the vehicle bus; and the central control unit is electrically connected with a hard wire of the simulation test device, and the simulation test devices in two or more than two pull-in control unit test systems are connected through an Ethernet. The simulation test system and the simulation test device provided by the invention can directly service development and test of the train network control system software, and can quickly construct an experimental model, shorten development cycle, and reduce economic cost.

The invention relates to a yageine derivative and salts of compounds. The invention synthesizes the novel yageine derivative compounds which can strengthen the antineoplastic activity and reduce the toxicity of a nervous system through the structural modification to locus 1, 2, 3, 7 and 9 of beta-carboline parent nuclei of yageine. The compounds can be used for preparing drugs used to treat various tumor diseases through the screening study of in vivo and in vitro anti-tumor experimental models.

The invention relates to a condensate gas reservoir blockage relieving physical simulation experimental device and a condensate gas reservoir blockage relieving physical simulation experimental method, and belongs to the technical field of oil field development experiment. The experimental device consists of a condensate gas reservoir model, an injection system, a production system and a data analysis system. The experimental device is used for performing preparation for simulating a rock core of a gas layer main model and simulating a rock core of a near wellbore zone model; the prepared rock cores are subjected to vacuum pumping and saturated gas condensation; a condensate gas reservoir blockage relieving experimental model is built; condensate gas reservoir seepage flow passage blockage simulation experiments and blockage relieving simulation experiments are performed; a condensate gas reservoir blockage relieving scheme is made according to obtained experimental data; the stratum temperature, the pressure and the depletion development process of the condensate gas reservoir can be simulated in a laboratory; the dynamic simulation of the depressurizing production and the gas injection swallowing-spitting blockage relieving of the condensate gas reservoir is realized; the blockage relieving gas injection quantity and the injection period of the simulated condensate gas reservoir are determined; the operation is simple and convenient; the implementation is easy; and the investment of a large amount of labor, materials and money on site is not needed.

The invention discloses a multi-scale porous structure light weight modeling method oriented to 3D printing, and belongs to the field of computer aided design and industrial design manufacture. Undera condition that characteristic constraints and a stress condition are given, through a compact support radial basis function interpolation, a smooth multi-scale porous model is constructed; the multi-scale porous model is applied to light weight modeling, and a feasible solving solution is given; through the 3D printing, an entity experiment model is obtained and is subjected to engineering stress verification; according to engineering verification result analysis, a parameter is corrected to enable the hole change of an optimization model to more approach to practical stress requirements; and through the above loop iteration process, a light weight model which meets stress requirements is obtained. By use of the method, a light weight purpose of the entity model can be truly realized, sothat the light weight design optimization period of the model is greatly shortened, the porous structure obtained by design has the advantages of smoothness, full connectivity, controllability and quasi-self-supporting, and the effectiveness and the manufacturability of light weight can be accurately guaranteed.

The invention discloses a method for improving the accurate pressure measurement by optical pressure sensitive material. The method comprises the following steps that: the design and arrangement for carrying out experiment measurement are preset; the optical pressure sensitive material is painted on the surface of an experimental model; the experiment arrangement and preparation are carried out; the preoperation of a measuring system and an experimental facility are carried out, then the experiment measurement is actualized; after the paint calibration, the model is corrected; finally, the pressure distribution of the model surface is acquired. The method can radically eliminate and solve the problem that error caused by local atmosphere pressure influences the precision of the experiment measurement.

The invention relates to an experiment apparatus for simulating a pitching / jawing / rolling over three-freedom degree forced movement of an aircraft in a wind tunnel. The apparatus comprises an experiment apparatus support, a pitching movement device, an L type rocking arm, a jawing movement supporting rod, and a rolling over movement supporting rod. The apparatus is mainly characterized in that: the central axis of the pitching movement device, the central axis of the jawing supporting rod, and the central axis of the rolling over supporting rod are perpendicular mutually; and the three central axises are intersected at one point. The pitching movement device is fixed on the experiment apparatus support and is connected with one end of the L type rocking arm, so that the L type rocking arm is driven to make pitching movements. The other end of the L type rocking arm is connected with the jawing movement supporting rod; a rotating shaft of the jawing movement supporting rod is connected with the rolling over movement supporting rod by a connection rod, so that the rolling over movement supporting rod is driven to make jawing movements; and a rolling-over rotating shaft of the rolling over movement supporting rod is fixedly connected with a model. The rolling over movement supporting rod, the jawing movement supporting rod, and the rotating shaft of the pitching movement device are driven by a motor; and a decelerator is added at the front end of the motor that is controlled by a computer. Therefore, the experimental model can make movements according to a given movement role; and a feedback control algorithm is used to improve control precision.

The invention discloses an optimization method of shield excavation parameters under the condition of a compound stratum. The method is characterized by comprising the following steps of (1) carrying out shield excavation orthogonal experimental design; (2) collecting excavation data; utilizing a data collection and storage system of a shield tunneling machine to collect and record experimental data; collecting the thrust, the rotating speed of a cutter, the excavation speed, the foam solution adding amount, the foam concentration and the cutter torque by the data collection system during the experiment process; collecting data at a time after excavating 20mm every time, wherein the experimental excavation length of each group is 1.6m; (3) building a shield excavation parameter mathematical model; designing an orthogonal experimental model according to the shield construction process, carrying out nonlinear regression analysis on data collected by the orthogonal experiment, respectively building an excavation speed model and a cutter torque model of earth pressure balance shield, confirming the reasonable excavation parameters under the condition of the compound stratum through resolving, and optimizing the excavation parameters, so that the safety of shield construction is improved, and the service life of the shield tunneling machine is prolonged.

The invention relates to an unsteady cavitation flow-excited vibration multi-field synchronous measurement system for a water tunnel experiment and belongs to the ship and underwater vehicle engineering and water conservancy and hydropower engineering technology field. The system is composed of an experimental section, an experimental model, a high-speed camera, a synchronous trigger switch, a laser Doppler vibration meter, a data acquisition instrument, a data processing system / computer and display assembly and a light source. According to the system of the invention, rising edge voltage signals are generated through the synchronous trigger switch, trigger signals are controlled by using the voltage signals, and therefore, the signal acquisition starting instructions of the high-speed camera and the laser Doppler vibration meter are controlled quantitatively and precisely, and the quantitative and accurate synchronous measurement of an unsteady cavitation flow field and a structure field can be realized; and data obtained through multi-physical field synchronous acquisition are subjected to preprocessing, time-domain analysis, frequency-domain analysis and time-frequency analysis,and therefore, reliable analysis experimental data can be provided for the study of fluid-structure interaction characteristics.

The invention relates to a double-hole complementary network ventilation experimental model, which is characterized by comprising an exhaust section (11), a short road section (12) and an air supply section (13), wherein sections (1 and 2) are positioned on the exhaust section (11) in an uplink; a section (3) is positioned on the short road section (12) in the uplink; sections (4 and 5) are positioned on the air supply section (13) in the uplink; sections (6 and 7) are positioned on the air supply section (13) in a downlink; a section (8) is positioned on the short road section (12) in the downlink; the sections (9 and 10) are positioned on the exhaust section (11) on the downlink; an exhaust outlet of the uplink and an air supply outlet of the downlink are connected through an air duct; a fan (15) is arranged in the air duct; an air supply outlet of the uplink and an exhaust outlet of the downlink are connected with an air duct; and a fan (14) is arranged in the air duct. The model has the characteristics of small funding and high safety, and is suitable for fields of tunnel management, ventilation, lighting, monitoring, disaster prevention, maintenance and the like.

The invention relates to a method for apperceiving and reconstructing a non-vision structural form of a near space vehicle model. The method comprises the following steps: on the basis of a distributed embedded dispersed bragg fiber grating sensing array, sensing and detecting strain information of each measuring point of a test model, and utilizing a certain curvature conversion algorithm to convert the strain information into curvature information; on the basis of a curvature interpolation, calculating the related coordinate value of each point of wings and frame of the test model according to a three-dimensional space curve fitting algorithm of orthogonal curvature information; utilizing a coordinate fuse algorithm to obtain an absolute coordinate value of each point of the model; and lastly, reconstructing the deformation state and the low-frequency vibrating form of the test model according to a computer graphic processing technology and realizing the three-dimensional visual real-time display for the change in the model form. An experimental system for the method comprises a simulated near space vehicle model, a fiber grating network analyzer with a network service function, a high-performance computer and a display, wherein the fiber grating sensing array is embedded into the surface of the simulated near space vehicle model.

The invention discloses a similar material proportion determining method used in a physical simulation experiment. The similar material proportion determining method used in the physical simulation experiment includes the steps that (1) physically similar materials of a typical property rock stratum are selected, a series of physically similar materials are made according to the different proportions of aggregates, cementing materials and additives, and a database is built; (2) a physical simulation experiment model is selected, and the types of the physically similar materials and the similarity proportion are determined; (3) each simulation rack stratum mechanical parameter of the physical simulation experiment model is determined; (4) the types, proportion and detailed consumption amounts of the physical simulation experiment model are determined; (5) a physically similar material proportion scheme is generated, and experiment model pavement is carried out; (6) an indoor experiment is carried out according to the physical simulation experiment scheme, evaluation values are analyzed, the physical proportion scheme is corrected, and each mine stratum physically similar material proportion database is built. The similar material proportion determining method used in the physical simulation experiment is simple, standard, reasonable and feasible in step, and capable of effectively changing the situations that standardability is poor in the experiment, too much qualitative analysis is needed, and accuracy and repeatability are poor.

The invention discloses a dynamic water quicksand stratum reinforcement grouting diffusion rule visual simulation experimental device and method. The device comprises an experimental box, a hydraulic pressure control loading system, a vertical hydraulic loading mechanism and a lateral hydraulic loading mechanism, a double liquid chemical grouting system and a test system connected to a computer. The method adopts an engineering geomechanical experimental model with a coal measure stratum physical analog simulation material, a waterproof stratum and an aquifer of certain height filled in the experimental box, aquifer grouting and water-plugging reinforcement visual physical simulation test is carried out hermetically under the conditions of circulating dynamic water pressure and vertical and horizontal lateral stress to acquire or quantitatively describe and analyze the diffusion rule of double liquid chemical grout in the water-bearing sandstone layer or quicksand layer, thus realizing visual simulation experiment of the double liquid component chemical grouting and water-plugging process under a similar water burst or water inrush condition. The method can effectively recognize and reveal the slurry diffusion and consolidation characteristics under a mining dynamic water condition, determine rational grouting and water-plugging parameters, and evaluate the grouting effect.

The invention relates to a circulating water tunnel-based synchronous measuring system for unsteady cavitating flows and belongs to the technical field of marine and underwater vehicle engineering and hydraulic and hydro-power engineering. According to the connectional relation, a laser generator emits laser which is guided to an experimental model though a laser guide arm; the laser guide arm is connected in order with the laser generator and a computer mainframe case; a high-speed camera acquires an image which is transmitted to the computer mainframe case; a pressure sensor acquires a pressure strength signal which is transmitted to another computer through a signal conditioner and a data acquisition card; the top of an experimental segment is provided with transparent organic glass; a synchronous trigger switch controls the high-speed camera and the data acquisition card at the same time. The system has the advantages that various experimental measurement devices are enabled to synchronously observe and measure a cavitating flow field and finally, the unsteady cavitation process, which is complex multi-field coupling flow, is comprehensively researched on.

The invention discloses a synchronous data acquisition system used in a wind tunnel based on stable dynamic pressure control. The data acquisition system comprises a pressure sensor, a pressure acquisition system, an aerodynamic force balance unit, an aerodynamic force acquisition system, a standard pressure source, an industrial personal computer (IPC), a stable dynamic pressure sensor, an accuracy control device, an aerodynamic parameter system and a motor fan, wherein, the pressure sensor measures the pressure in the low-speed wind tunnel and transmits the measured pressure value to the pressure acquisition system; the aerodynamic force balance unit measures aerodynamic force on an experimental model and outputs the measured aerodynamic force value to the aerodynamic force acquisition system; the standard pressure source respectively calibrates the pressure sensor, the pressure acquisition system and the stable dynamic pressure sensor so as to obtain calibration factors, the calibration factors are transmitted to the IPC so as to obtain a controlled process mathematical model for stable dynamic pressure control, and then the controlled process mathematical model is transmitted to the accuracy control device; the accuracy control device drives the pressure acquisition system, the aerodynamic parameter system and the aerodynamic force acquisition system to perform synchronousdata acquisition; the stable dynamic pressure sensor acquires variation of a flow field in the low-speed wind tunnel, and then the variation value is transmitted to the IPC; and the IPC controls the motor fan to rotate. The data acquisition system disclosed by the invention has the advantages that manpower is saved, high-accuracy data can be obtained, the operating method is simple and practical,the cost is low and the application prospect is wide.

The present invention relates a method for isolating four cell types from a single umbilical cord as pure cultures. These cell lines (epithelial cells, fibroblasts, smooth muscle cells and endothelial cells) can be characterised and utilised in experimental models and for therapeutic purposes. Particularly, the umbilical cells isolated herein are used to form a tissue replacement or engineered living composition. Also, the isolated umbilical cells of the invention may have the potential of progenitor cells.

The invention provides an experiment device and an experiment method for simulating thermal jet flow interference. The experiment device comprises a hypersonic wind tunnel, an experiment model, a bracket, a Laval internal nozzle, a model nozzle, a heater, an air storage tank, an air cylinder and a CF4 / SF6 gas cylinder, wherein an air source is compressed and expanded through the hypersonic wind tunnel and then becomes hypersonic airflow to provide an experiment with external flow; a CF4 / SF6 gas is mixed with air and then provides the experiment with internal jet flow; the specific heat ratio required by the experiment is obtained through controlling the molar mixing ratio and the temperature of the CF4 / SF6 gas and air, so that the requirements on specific heat ratio simulation of the jet flow in the experiment are met; and simulation of a jet flow interference experiment of the specific heat ratio of the jet flow is achieved in a common wind tunnel. The experiment method has the advantages of being relatively long experiment time, free of pollution, low in thermal load and low in cost, and therefore, the experiment method can be used as an effective means for evaluating the performance of the spray pipe of a hypersonic aerocraft.

The invention relates to a multilateral well experimental model, a multilateral well experimental system and a sand filling method. Experimental sand is filled into the upper part of the multilateral well experimental model, and the lower part of the experimental model is used for simulating bottom water. A bottom water diffusion plate is arranged between the upper and lower parts. A layer of gauze element is arranged between the bottom water diffusion plate and the upper part of the experimental model. According to the multilateral well experimental model, the influence of edge water and the bottom water of an oil reservoir on the productivity of a multilateral well and the distribution of a near-well pressure field is effectively simulated under boundary conditions closer to various boundaries such as the bottom water, the edge water and enclosure in a real oil reservoir environment, so that the influence of different boundary conditions on the productivity of an oil well can be obtained.

A digested phagocyte prepared by contacting in vitro a phagocyte with a foreign microorganism and isolating the phagocyte so contacted; a process for producing the same; and a process and a kit in which these are utilized are disclosed. An experimental model, which enables in vitro evaluation of a phagocytotic function of phagocytes, is provided.

Highly efficient gene transfer into primate-derived embryonic stem (ES) cells has successfully been achieved by using a simian immunodeficiency virus vector (SIV) pseudotyped with VSV-G protein, which is a surface glycoprotein of vesicular stomatitis virus (VSV) The present invention provides simian immunodeficiency virus vectors for gene transfer to primate ES cells. The method for gene transfer to primate ES cells using the vectors of the present invention is useful in, for example, research into embryology and disease, clinical applications, and experimental models for primates. The method is also useful in assaying and screening for genes and reagents able to enhance the specific differentiation of tissues or cells, and which are useful in preparing desired cells or tissues differentiated from ES cells.

The invention discloses a stress and displacement continuous measuring method for coal mine similar simulation experiments.The method comprises the steps that on the basis of a similar simulation experiment model, under the effect of similar simulation experiment loads, stress and displacement changes of a model rock stratum before breaking are automatically and continuously measured and recorded, and whole-process data measurement of stress and displacement of a similar simulation model overlying rock layer before breaking is achieved.According to the adopted similar simulation model, the structure is simple, use is convenient, stress and displacement measurement is accurate and reliable, stress and displacement change whole-process data of the model rock layer before breaking is automatically and continuously measured and recorded in the similar simulation experiment process, and an early-stage theoretical foundation is provided for coal mine design mining construction.

The invention discloses a vehicle-bridge coupling power experimental model device, and belongs to the technical field of railroad bridge engineering. The experimental model device consists of a model vehicle and a model bridge, wherein the model bridge comprises a multi-span continuous beam, a bridge pier, an acceleration section and a deceleration section. The model vehicle is processed according to the size and structure of a real vehicle. The vehicle is pulled to different positions and heights of the acceleration section by an electric motor, and then is released by power down so as to ensure that the vehicle passes through the bridge at different speeds. The deceleration section is provided with a two-stage deceleration device to consume the kinetic energy of the vehicle, and simultaneously, in order to prevent the vehicle from rebounding, the end part of the deceleration section is provided with an anti-rebounding device. By using the experimental model device, the real structures of the vehicle and the bridge can be known, and the power coupling action process between the vehicle and the bridge when the vehicle passes through the bridge can be simulated.

The invention discloses an inclination angle measurement error data correction system and method of an experimental model in a wind tunnel when the experimental model is placed in the wind tunnel to be subjected to a blowing experiment. The inclination angle measurement data correction system comprises a data preprocessing module, a model training module and an error data correction module, and the correction method comprises three steps: data preprocessing, model training and error data correcting. The invention provides a multi-stage and multi-model fusion error correction method based on a neural network model as a basic model, the model fitting degree is higher, the calculation result is more accurate, the nonlinear error, caused by vibration of the model under the wind action, in data measured actually by an inclination angle sensor can be corrected well, and the correction error of the correction system can be controlled within 0.004-0.01 degree near the 0 degree.

The invention discloses a low-speed wind tunnel virtual flying experimental model attitude measuring system. The system comprises an airborne power supply, an embedded attitude measuring computer, a heading attitude reference system, an inertial measuring unit and a system calibration computer; the airborne power supply, the embedded attitude measuring computer, the heading attitude reference system and the inertial measuring unit are arranged inside an aircraft model; measuring information of the heading attitude reference system and measuring information of the inertial measuring unit enter the embedded attitude measuring computer through a serial bus; a computing result of the embedded attitude measuring computer is sent to the system calibration computer through the Ethernet in a wireless mode; the system calibration computer is arranged outside a wind tunnel experimental section. According to the low-speed wind tunnel virtual flying experimental model attitude measuring system, the angular velocity and attitude angle of the model are directly measured through pure inertial measuring elements, an air flow angle is indirectly calculated and obtained by utilizing a transformational relation of the attitude angle peculiar to a virtual flying experiment and the air flow angle, and therefore attitude measuring information of the virtual flying experimental model is obtained.

The invention relates to an HUVEC (human umbilical vein endothelial cell) separation, culture and subculture method belonging to the technical field of biology. The method comprises the following steps: (1) separation of HUVEC: taking a fresh umbilical cord, cleaning with a sterile PBS (phosphate buffer solution) containing penicillin-streptomycin, adding collagenase to perform water bath digestion at 37 DEG C, centrifuging the digestion solution, then adding an M199 culture medium, transferring into a gelatin-coated culture bottle, and culturing in a CO2 incubator at 37 DEG C; (2) culture of HUVEC: after the HUVEC is cultured at 37 DEG C for 24 hours, pouring out the culture medium, cleaning with the PBS, adding a fresh M199 culture medium, and afterwards, changing the culture medium once every two days, wherein the HUVEC can be subcultured generally after being cultured for 5-7 days; and (3) subculture of HUVEC: pouring out the culture medium, cleaning with the PBS, adding the digestion solution to digest the cell, adding a DMEM (dulbecco's modified eagle medium) containing serum to terminate the reaction once the cell is rounded, centrifuging the digested cell, and adding a fresh culture medium, wherein the HUVEC subcultured for 2-3 generations is used for experiments. The separated HUVEC is economical and practical, is simple and easy to use, and is beneficial to obtaining required in-vitro experimental model cells.

The invention relates to a combined underground pipeline space fire safety research model device. The device is formed by freely combining a plurality of integrated pipe gallery modules which are of the same structure and detachably assembled together. The combined module includes a variable-frequency ventilation device, a fire source device, a slope adjustment device, a fire detection device anda fire fighting system. One end of main pipe galleries is fixed on a support frame, and the other end is supported by a jack and the slope thereof can be adjusted. A mobile trolley equipped with a burning oil pan and a cable rack can slide in the pipe galleries to change the position of the fire source. The pipe gallery modules can be disassembled and assembled freely. Combined modules can be combined to form a multilayer or multi-compartment pipe gallery. After the fire detection device issues a warning, corresponding fire extinguishing media (such as water or gas) can be provided for fires of different fire source power through the control on the fire fighting system. The device provides an integrated, convenient and flexible small-size comprehensive pipe gallery scale experimental model, which can realize arbitrary combination of different pipe gallery structures, fire fighting systems, fire detection devices, ventilation modes, fire source types and pipe gallery slopes and meet theneeds of experimenters to carry out simulation experiments on the fire conditions of various complex pipe galleries.

The invention discloses a method for executing layout optimization on experimental model analysis measurable nodes of numerical control machining equipment, which comprises the following steps: (1) obtaining the overall structure modal shape of the equipment and a corresponding modal shape matrix through finite element simulation; (2) determining and selecting a modal shape sensitive component of the equipment and a corresponding shape matrix by utilizing the overall structure modal shape; (3) selecting surface measurable nodes from the modal shape sensitive component, wherein the surface measurable nodes are used as objects to be optimized in layout; (4) performing iteration elimination on the surface measurable nodes by using an effective independence method; and (5) executing linear even node distribution on the modal shape sensitive component by adopting the Shannon's sampling theorem. Through the method for executing the layout optimization on the experimental model analysis measurable nodes of the numerical control machining equipment, the defects in the aspects that the traditional modal testing efficiency is low, the time is long and the like can be overcome, and the number of the measurable nodes and the positions of the measurable nodes can be optimized, and the testing efficiency can be increased on the premise of ensuring natural frequency and shape identification in numerical control machine structure modal testing.

The invention belongs to the field of hydraulic experimental model facilities and particularly relates to an automatic control type circulating water tank for simulating the instantaneous dam break. The circulating water tank comprises a water tank, a gate, a water level control system and a gate lifting control system. The water level control system comprises a water injection pipe, a water inlet pipe and a water guide pipe which are connected through a three-way pipe fitting, wherein the water guide pipe is connected with a circulating water pump. The water level control system further comprises a gate upstream water level gauge and a gate downstream water level gauge, wherein the gate upstream water level gauge and the gate downstream water level gauge are respectively arranged in a gate upstream water tank and a gate downstream water tank. The gate lifting control system comprises a vertical rack arranged on the front surface of a gate door plank and matched with the driving gear of a motor, and a lifting guide rail fixedly erected on the water tank along a guide rail. During the lifting process of the gate door plank, a pair of vertical guide bars on the back surface of the gate door plank are always fittingly kept in the vertical guide grooves of the lifting guide rail. An automatic air drying device is arranged in the gate downstream water tank, so that the conduction of dry bed experiments is facilitated. The circulating water tank is stable, automatic and efficient.