207results about How to "Facilitate experimental research" patented technology

The invention discloses a wind sand environment and engineering wind tunnel simulation device, in particular to a large opening direct-flow air blowing typed wind sand environment and engineering wind tunnel simulation device which is specially used for simulating wind sand movement and sand control engineering; the wind sand environment and engineering wind tunnel simulation device comprises a tunnel body which comprises an air inlet section (3), a transition section (4), a damp part with a damper (5), a first diffuser (6), a stabilization section (7), a contraction section (8), a speed vehicle (9), a testing section (10) and a second diffuser (11) which are sequentially connected one after another; and the power system is connected with the air inlet section (3) and is used for providing the power for the wind tunnel by a DC motor. The wind sand environment and engineering wind tunnel simulation device can truly simulate the wind sand control, thus pushing the wind sand control technique to go ahead; furthermore, the wind sand environment and engineering wind tunnel simulation device can carry out the test for preventing the diffusion of contamination and the test for the building dynamics characteristic and the like.

The invention relates to a device and method for preparing a rock-like material structural plane and utilizing the rock-like material structural plane to a shearing test. The device comprises a test part manufacturing system, a test part system, a loading system and a data acquisition system. The device provided by the invention can realize preparation of the rock-like material structural plane and a weak intercalated layer structural plane containing different fillers, and researches on shearing properties of the structural plane can be realized.

The invention discloses a method for preparing a deep sub-micron device sample for an in-situ transmission electron microscope. Ion beams are focused into ion beams with a small size for performing microdissection or grinding by utilizing an electromagnetic lens by adopting a focused ion beam system, accurate positioning sample preparation can be performed, and a deep sub-micron device is obtained. The method comprises the following steps: cutting and thinning the sample by adopting the focused ion beams so as to obtain a thinned sample, inclining a sample stage at 52+ / -(0.5-1.5) degrees relative to the finally thinned sample through conventional focused ion beams, and innovatively inclining the sample stage at 52+ / -7 degrees. The invention also provides a deep sub-micron device sample for the in-situ transmission electron microscope. The sample comprises multiple discrete nano devices which are regular in shape and have the width of less than 20nm and the thickness of less than 100nm. The sample is suitable for research on the in-situ transmission electron microscope and has the high significance in research on the performance of the deep sub-micron device.

The invention discloses a dry core-taking device and a core-taking method for a soft rock. The dry core-taking device for the soft rock comprises a core-taking drill bit, an internal wind cooling system and an external wind dust suction system. The method comprises the following steps: firstly, assembling various parts before taking the core, and mounting the assembled pats on a core-taking machine; injecting the compressed, dried and cooled air into the inner wall of a core-taking pipe through an annular air blower in the core-taking process, thus rapidly dissipating the heat generated by grinding of the drill bit and the rock; reducing the temperature of the drill bit and a rock sample, and timely discharging the residual rock waste between the inner wall of the drill bit and the rock core from a waste outlet in the outer wall of a rock core pipe of the drill bit; simultaneously forming a closed hollow cavity by a dust suction hood, the rock, the rock core pipe and the like; and preventing the rock waste and cold air from leaking outside, and discharging the rock waste and heat through the dust suction system. Through coordination operation of the components, dual functions of cooling the drill and discharging waste are achieved; the dry core-taking device is suitable for dry and anhydrous core taking of soft rocks; the integrity of a soft rock sample structure can be ensured; and the rock sample processing quality and the core-taking efficiency can be improved.

The invention relates to a blast furnace first slag experiment method and a first slag experimental furnace which solves the problem that the current experiment method can not well guide the optimization of furnace material structure for first slag can not be acquired. The first slag experimental furnace comprises an electric furnace and an air distribution cabinet, wherein the electric furnace is provided with a hearth pipe; a graphite crucible positioned on a graphite base is arranged in the hearth pipe; the upper end of the graphite crucible is provided with a center press rod, and the upper end of the center press rod penetrates through the hearth pipe and is provided with an inserted thermocouple; a material surface load readjusting device is arranged on the center press rod; the upper end of the hearth pipe is provided with an upper cover, an exhaust opening and a displacement sensor, and the lower end is provided with a material receiving box and communicated with the air distribution cabinet by a reducing gas inlet; and a pressure difference transmitter is arranged on a connecting pipeline of the reducing gas inlet and the air distribution cabinet. The experiment method obtains first slag by simulating the blast furnace condition through the first slag furnace, records all detecting data on line and carries out chemical analysis and microscopic detection on the first slag, thereby having important guide significance for optimizing the furnace material structure.

The invention discloses a bearing-gear multi-fault coupled simulation experiment table, which comprises a first direct-current adjustable speed motor and an input shaft which passes through a gear box body and is connected with the first direct-current adjustable speed motor. The input shaft is connected with a transmission shaft of a bearing box body, a mandrel of the bearing box body is provided with a replaceable bearing housing, one side of the replaceable bearing housing is provided with a tip and a top tray, the input shaft in the gear box body is sleeved with an input shaft shifting slide gear, a gear box middle shaft and a gear box output shaft which extends out of the gear box body and is connected with a second direct-current adjustable speed motor are also arranged in the gear box body, the gear box middle shaft is provided with a middle shaft pinion and a middle shaft gearwheel, and the gear box output shaft is provided with an output shaft shifting slide gear which is meshed with the middle shaft pinion. The experiment table not only can simulate respective fault rotating table, but also can synchronously simulate fault states of a bearing and a gear so that the fault characteristics are closer to the actual conditions on site, and the experimental study and production practice are combined more conveniently.

The invention discloses a vacuum preloading and electroosmosis combined testing device. The vacuum preloading and electroosmosis combined testing device comprises a tempered glass model box, wherein a measurement hole site is formed on the tempered glass model box, a minitype pore water pressure gauge is arranged in the tempered glass model box and penetrates through the measurement hole site to be connected with an external instrument by an information wire, a plastic drainage plate is vertically inserted in the middle in the tempered glass model box, a reinforcing steel bar is inserted in the tempered glass model box, the reinforcing steel bar is connected with an anode binding post, a conductive copper wire is connected with a cathode binding post, a main drainage pipe is connected with a suction filtration bottle which is connected with a vacuum pump by a pipeline, a vacuum meter is arranged on the main drainage pipe, and the suction filtration bottle is arranged on an electronic scale; lateral displacement scales are marked on the tempered glass model box horizontally, and multiple lateral displacement scales are distributed on the tempered glass model box in the height direction. The vacuum preloading and electroosmosis combined testing device also provides a vacuum preloading and electroosmosis combined testing method. The vacuum preloading and electroosmosis combined testing device can be used for conveniently and rapidly simulating a soft foundation after being subjected to vacuum-electroosmosis combined treatment in a room, can accurately measure the vacuum degrees and the pore water pressures of soil bodies at different positions, and can clearly observe the bending change of the plastic drainage plate in a solidifying process of the soil bodies.

The invention discloses a blade tip coupled cooling experiment system for turbine blades of a gas turbine. The blade tip coupled cooling experiment system comprises a high temperature main flow channel, a U-shaped cooling channel, an experimental test section and a data acquisition and analysis system, wherein the high temperature main flow channel comprises a temperature control box, and a main flow gas pump, a main flow gas flow stabilization tank, a main flow gas heater and a main flow three-way electromagnetic valve which are sequentially connected; the U-shaped cooling channel comprises acold flow outlet vacuum pump, and a cold flow inlet gas pump, a cooling gas flow stabilization tank, a cooling gas heater and a cold flow inlet three-way electromagnetic valve which are sequentiallyconnected; the experimental test section comprises a U-shaped cooling channel, a high-temperature main flow channel and a blade tip plate with a through hole in the center, and an embedded plate is embedded in the through hole; the data acquisition and analysis system comprises a cooling channel infrared thermal imager, a main flow channel infrared thermal imager, a CCD camera, and a data acquisition and analysis computer connected with the cooling channel infrared thermal imager, the main flow channel infrared thermal imager and the CCD camera; and an outlet of the main flow three-way electromagnetic valve is communicated to an inlet of the high temperature main flow channel, and an outlet of the cold flow inlet three-way electromagnetic valve is communicated to an inlet of the U-shaped cooling channel.

The invention is applicable to the field of producing optical fiber devices, and provides an optical fiber tapering device and method. The optical fiber tapering device comprises a bottom plate, a rotating module, a heating furnace, and a heating pipe, wherein the bottom plate is used for supporting; the rotating module is arranged on the bottom plate, and used for rotating and stretching to-be-treated optical fiber connected on the rotating module; the heating furnace is arranged on the bottom plate and arranged in parallel to the rotating module, and used for heating a part of to-be-treated optical fiber to a fusion state so as to facilitate stretching; and the heating pipe is arranged in the heating furnace and used for the to-be-treated optical fiber to penetrate through so as to fix the to-be-treated optical fiber and prevent a part, positioned in the heating pipe, of the to-be-treated optical fiber from being oxidized in heating. The invention further relates to an optical fiber tapering method based on the optical fiber tapering device, and the method comprises the following steps: interspersing, placement, winding, ventilation, heating, stretching and the like. The device realizes the laboratory manufacturing of micronano-level optical fibers, the cost of the optical fiber tapering device can be lowered, and the device is suitable for use in experimental study.

The invention provides a performance test table for a rear shock absorber, which can exert lateral force to perform friction experiment researches. The test table adopts a motor (1) as a shock excitation power source, wherein the motor (1) is arranged above a test table beam (2) and connected with a straight rod (4) through a transmission system (3). The straight rod (4) vertically penetrates through the beam (2), a force sensor (5) is fixed on the straight rod (4), a displacement sensor is connected with the rear shock absorber (7), a horizontal rod (8) is vertically connected with the rear shock absorber (7), and a weight rod (9) is vertically connected with the horizontal rod (8) and downwards perpendicular to the ground. The test table adopts a mechanical excitation structure and mechanical uploading lateral force, is simple in structure and easy to control, and brings convenience to performance tests.

The invention relates to a stimulation, recording and administration combined device for the research on the use of ippocampal field potentials of mouse and rat, belonging to a device used in medical electrophysiologic experiment of animals and mainly solving the difficult technical problem that the current device has low successful rate in field potation guidance owing to complex operations and plenty of consumed time and used drugs. The technical proposal of the invention is that: a stimulation, recording and administration combined device for the research on the use of ippocampal field potentials of mouse and rat comprises an eccentric circle dual-pole stimulating electrode, a hollow single-pole recording electrode, an electrode fixation device and a recording electrode core, wherein the eccentric circle dual-pole stimulating electrode and the hollow single-pole recording electrode are arranged inside the electrode fixation device in parallel, and the recording electrode core is arranged in an administration hole in the center of the hollow single-pole recording electrode. The device further comprises an administration device consisting of a hollow administration catheter, a hose and a microinjector, wherein the upper end of the hollow administration catheter is connected with one end of the hose the other end of which is connected with the microinjector.

The invention provides a kit and a method capable of quickly separating adipose tissue-derived stem cells. The kit comprises a washing liquid, a cell culture fluid A, a cell culture medium B and a cell digestive juice, wherein the washing fluid is normal saline (containing 0.9% sodium chloride); the cell culture medium A is a Knockout-DMEM liquid medium containing 100 ng / mL LIF and 100 ng / mL bFGF cytokines; the cell culture medium B is fetal bovine serum; and the cell digestive juice is a collagenase type I enzyme solution with a mass to volume percent concentration of 0.2%. Compared with a conventional separation culture method, the cells obtained by the kit have high purity and fast propagation. Generally, a primary cell culture can be completed in seven days; the primary cells are sub-cultured by using the culture solution, and cell density can reach 90% in 2-3 days. The kit and the method provide a rich source for further experimental study by using the adipose tissue-derived stem cells.

Integrated medium frequency current and electric field exciting equipment comprises a single chip microcomputer central control unit, an insulation or contact integrated electrode, a signal generation unit, a power amplification unit and an output switching module. The insulation or contact integrated electrode is formed by a current exciting part and an electric field exciting part, the signal generation unit is connected with the single chip microcomputer central control unit and generates exciting signals of different shapes and frequencies under the control of the single chip microcomputer central control unit, the power amplification unit is connected with the signal generating unit and amplifies the exciting signals, the output switching module is connected with the power amplification unit, enables the amplified exciting signals to be connected to one lead wires under the control of the single chip microcomputer central control unit. According to the integrated medium frequency current and electric field exciting equipment, medium frequency electric field excitation or medium frequency current excitation can be carried out on the cells or the tissue of tumors according to the selection of experimenters, and the two kinds of excitation can also be carried out alternatively to observe synergistic effects.

The invention discloses an ocean thermocline and halocline simulation device. The ocean thermocline and halocline simulation device comprises a thermocline and halocline simulation water tank, a thermocline and halocline water injection device, a temperature control box and a small-sized refrigerator, wherein the thermocline and halocline simulation water tank is respectively connected with the thermocline and halocline water injection device, the temperature control box and the small-sized refrigerator; a heating rod, a salinity sensor, a lower-layer temperature sensor and an upper-layer temperature sensor are arranged in the thermocline and halocline simulation water tank in sequence from bottom to top; and the thermocline and halocline water injection device consists of a freshwater tank, a drainage tube and water injection sponge. When the ocean thermocline and halocline simulation device is in use, firstly half the volume of salt water is put into the thermocline and halocline simulation water tank, then freshwater at the upper part is injected by the water injection device, and the temperature reduction of the freshwater at the upper part and the temperature rise of the salt water at the lower part are controlled by the temperature control box, so that a temperature difference is generated between the freshwater at the upper part and the salt water at the lower part; after the temperature is stabilized, an ocean thermocline and halocline layer on which temperature and salinity drastically change is formed at the junction of the freshwater at the upper part and the salt water at the lower part.

The invention discloses an immunofluorescent staining and interpretation method for circulating tumor cells. The method comprises the following steps: S10, performing centrifugal treatment on a blood sample diluted with a phosphoric acid buffer solution, and removing erythrocyte and leukocyte in the blood sample; S20, moistening the treated blood sample with the phosphoric acid buffer solution, adding a stationary liquid for immobilizing cells in the blood sample, adding a permeabilization liquid for permeabilization, and further adding a confining liquid for sufficient confining; and S30, dripping dye liquids of anti-pan-CK-FITC, anti-CD45-AF59 and anti-Vimentin-FITC into the treated blood sample at a dark place, performing light shielded incubation, removing the dye liquids, adding a nucleic acid fluorescent dye to continue incubation. The interpretation method comprises steps of scanning observation and result interpretation. Compared with the prior art, the dyeing method disclosed by the invention has the advantages of being simple and convenient to operate, easy to popularize and the like, and the interpretation method has the advantages of being accurate interpretation and the like.

The invention discloses an experimental device and an experimental method for linear dynamic sealing characteristics of sealing rings. The experimental device comprises a base, wherein a rodless cylinder is mounted on the base, a shaft is arranged at the top of the rodless cylinder and sleeved with a sleeve assembly, and the bottom of the sleeve assembly is fixedly connected with a slider on the rodless cylinder; three sealing ring mounting parts are arranged in the sleeve assembly along the shaft at intervals, the sealing rings are mounted in the sealing ring mounting parts and can reciprocate with the sleeve assembly along the shaft, an accommodating cavity penetrated by the shaft is formed between every two adjacent sealing ring mounting parts in the sleeve assembly, and a pressure regulating device and a pressure sensor are also mounted on the surface of the sleeve assembly. According to the experimental device for linear dynamic sealing characteristics of the sealing rings, the slider of the rodless cylinder drives the sleeve assembly to reciprocate along the shaft, the working state of the sealing rings during linear reciprocation can be simulated after the sealing rings are mounted at the mounting parts, the sealing rings and the shaft form friction pairs in the process, and the friction characteristics of the sealing rings can be experimented.

The embodiment of the invention discloses an ADN based single-component thruster adopting low-temperature plasma concerted catalysis. The ADN based single-component thruster comprises a spouting section, an ionization section, a catalysis section and a combustion chamber which are coaxially connected sequentially, wherein the two ends of the spouting section and the two ends of the ionization section are pressed by a front flange plate and a middle flange plate; an integrated structure formed by the catalysis section and the combustion chamber and the ionization section are pressed by the middle flange plate and a rear flange plate; the spouting section comprises the front flange plate, a front insulator and an anode chassis as well as gas and liquid supply tubes separately used for providing an ADN liquid propellant and gas; the ionization section comprises a cylindrical anode, a middle insulator, a barrel-shaped cathode, a rear insulator and the middle flange plate which are sequentially connected to the anode chassis; the middle flange plate and the front flange plate are matched and pressed through a locking bolt; the catalysis section comprises a rear flange plate and a catalysis bed; and the combustion chamber comprises an optical test window and a reserved sensor jointing base. The AND based single-component thruster has various ignition ways, and is of great significance in completely converting an existing catalysis dissociation ignition way.

The invention discloses a two-freedom-degree hybrid stepping motor for bionic eyeballs of a robot. The stepping motor comprises a first freedom degree motor, a second freedom degree motor and output shafts, wherein the first freedom degree motor is of a circular structure with a notch, the second freedom degree motor is of a circular structure with an opening, the notch is matched with the opening, and the planes of the two motors are perpendicularly orthogonal; the first freedom degree motor and the second freedom degree motor both comprise stators and rotors, the stators and the rotors can relatively move in the planes of the motors, and the two-freedom-degree movement of the output shaft of one freedom degree motor can be achieved through respective independent movement of the two freedom degree motors. The two-freedom-degree hybrid stepping motor has the advantages of being simple in structure and manufacture technology, convenient in analysis design, high in mechanical integration level, high in open-loop operation location accuracy, easy in performance experiment test and favorable for shortening the development period of products and improving the performance and the competitiveness of the products.

The invention discloses a carbon dioxide blasting impact dynamic monitoring test device. The carbon dioxide blasting impact dynamic monitoring test device comprises a CO2 blasting impact test system,wherein the CO2 blasting impact test system is provided with a dynamic stress test system and a static stress test system; the CO2 blasting impact test system consists of a stress loading mechanism, ablasting impact mechanism and a gas collection mechanism; the stress loading mechanism comprises a test piece stress loading part and two ring flanges; the two ring flanges are arranged one after theother side by side; and the stress loading part is arranged between the two ring flanges. The carbon dioxide blasting impact dynamic monitoring test device can perform in-situ integral test on dynamic information of coal bodies under blasting impact, and has the beneficial effects that I, a cylindrical test piece adopted in the test can be directly taken from the site, so that the disturbance ofindoor machining on the original structure of the test piece is avoided; II, an impact source is provided by liquid CO2 phase change blasting, so that butt joint of the test piece is facilitated, andthe blasting performance parameters can be controlled conveniently; III, various observation sheets can be arranged conveniently; and IV, the problems of heaviness, high cost and inconvenience in thetest for large test pieces are solved.

The invention discloses an experiment device and testing method of a uniaxial BREE solution. The experiment device mainly comprises a high temperature creep fatigue testing machine, an upper beam, a lower beam, sample clamps, a first rod sample, a second rod sample, a heating furnace, a high temperature displacement sensor, a temperature controller and a measurement system. The upper beam and the lower beam are fixed to the high temperature creep fatigue testing machine, the two parallel sample clamps are arranged between the upper beam and the lower beam, and the first rod sample and the second rod sample are fixed to the two sample clamps; the first rod sample and the second rod sample are provided with the heating furnace and the high temperature displacement sensor, the temperature controller is connected with the first rod sample and the second rod sample, and the measurement system is connected with the high temperature creep fatigue testing machine. The testing method includes the steps that the high temperature displacement sensor tests displacement deformation of the rod samples, and the relation between plastic stress and the cycle times is obtained, so that the structural stability limit is obtained. The experiment device and testing method can be used for testing and evaluating of the structural stability limit under the condition of uniaxial load and similar working conditions.

The invention discloses a method for measuring near-field light intensity distribution by utilizing the arrangement shape of nano particles. It is a method that uses the strong gradient force generated by the evanescent field to operate nanoparticles, and detects the near-field light intensity distribution according to the arrangement pattern generated after the operation. After the nanoparticles are placed in the near-field region of the fine structure, the rapidly decaying evanescent field can provide the gradient force required to capture the particles, so as to realize the stable and efficient capture operation of the nanoparticles. The three-dimensional optical trap formed in the near-field region can balance the external interference force, and stably capture and confine the nanoparticles near the light intensity pole. Therefore, the pattern shape formed by the final arrangement of the particles can reflect the light intensity distribution in the fine-structure near-field region. Utilizing the arrangement shape of nanoparticles in the near-field region, the precise detection of near-field light intensity on fine-structured surfaces can be realized.

The invention relates to an experimental system for analyzing a dynamic scaling trend of geothermal water, is conducive to research on a scale forming problem of the geothermal water and optimization of a scale inhibitor, and belongs to the technical field of geothermal exploitation. The experimental system consists of an auxiliary system, a visualization system, a detection system, a storage system and a heating system. After several simple experimental components are properly adjusted, a complete set of experimental system can be formed through combination; according to specific experimental requirements, different types of experimental components can be selected, each experimental component is visualized, the dynamic forming process of geothermal scales can be intuitively observed, and the scale inhibiting effect can be researched after the scale inhibitor is added. The experimental system is small in space occupancy, simple in structure, convenient to operate, low in cost and real-time in detection, and is conductive to research on scale formation of the geothermal water and a scale inhibiting problem.

The invention discloses experimental equipment for simulating the water flow and sediment bed-forming process. A seepage separating groove is formed in the center position of a water tank; a water inlet front pool communicating with the seepage separating groove is arranged at the front end of the seepage separating groove; the water inlet end of a water inlet pipe is connected to a water supply box; the water outlet end of the water inlet pipe extends to the water inlet front pool; a seepage outflow channel is formed in the rear end of the water tank; a river outflow channel is formed in the rear end of the seepage separating groove; the seepage outflow channel is formed under the river outflow channel; a desilting water passing bucket is arranged on the lower portion of an outlet of the river outflow channel; a water collecting box is arranged on the lower portion of the seepage outflow channel; a circulation pipeline connects the lower portion of the water collecting box with a water draining chamber; the front end of the bottom of the water tank is hinged to the front end of a second supporting frame; a gradient adjusting device is arranged at the rear end of the bottom of the water tank; and an air blower, a spraying pipe, a lighting pipe and an image collector are arranged inside an experimental shed at the top end of the water tank. The experimental equipment has the beneficial effects that the gradient is adjustable, and illumination, precipitation and air blowing can be simulated.

The invention discloses an accurate-control underwater multi-bubble generation test device which comprises a mobile phone, a high-speed video camera, a water tank, a single chip microcomputer controlmodule, energy storage voltage booster circuits, discharge circuits and a plurality of discharge electrodes. The single chip microcomputer control module is connected with the mobile phone, the high-speed video camera and the multiple discharge electrodes, the discharge electrodes are positioned in the water tank, each energy storage voltage booster circuit, the corresponding discharge circuit andthe corresponding discharge electrode are correspondingly connected with one another, the distances between the discharge electrodes and the heights of the discharge electrodes can be adjusted, discharge voltage and discharge delay parameters of the multiple discharge electrodes can be set and monitored by APP (application) software of the mobile phone, energy storage voltage boosting can be carried out by the energy storage voltage booster circuits under the control of the single chip microcomputer control module to provide discharge voltages to the discharge electrodes, the discharge circuits can be closed and opened under the control so as to trigger the discharge electrodes to generate multiple bubbles, and the high-speed video camera can synchronously work under the control. The accurate-control underwater multi-bubble generation test device has the advantages that the discharge voltages and discharge delay for generating the multiple bubbles can be accurately controlled by the accurate-control underwater multi-bubble generation test device, accordingly, the multiple bubbles in diversified forms can be generated, charge voltages can be monitored, and states of the multiple bubbles can be synchronously observed.

The invention relates to a pressure cylinder type liquid-solid mixed jet experimental device. The device comprises a bracket, an abrasive tank is fixed on the bracket; the upper surface of the abrasive tank is connected with a water tank through a pipeline A; a discharge hole A is formed in the bottom end of the abrasive tank; the discharge hole A is connected with a sand mixing chamber through apipeline B; a discharge hole B is formed in the bottom end of the sand mixing chamber; the discharge hole B is connected with a nozzle; a pressure cylinder is connected above the sand mixing chamber;the pressure cylinder comprises a cylinder body A and a cylinder body B; the positions, close to the top end and the bottom end, of the side face of the cylinder body A are connected with an electromagnetic reversing valve through a pipeline C and a pipeline D. An oil tank is further connected with an electromagnetic overflow valve and a plunger pump, an outlet of the plunger pump is connected with the electromagnetic reversing valve, and the position, close to the bottom end, of the side face of the cylinder body B is connected with a water tank through a pipeline E; the invention is simple and reasonable in structure, diverse in function and convenient to maintain.

The invention belongs to the technical field of geotechnical model test researches and relates to an impact rolling model tester and application thereof. The tester comprises a test control chamber, a traction device, slide guides, an impact wheel, a test chamber and a main framework, wherein the traction device comprises an alternating-current motor, an inhaul cable, a guide pulley and a pulley stay bar; one end of the inhaul cable is fixedly arranged on a winding pulley of the alternating-current motor; the other end of the inhaul cable is connected with a connecting fixed block; the guide pulley is arranged on supports through the pulley stay bar; the slide guides comprise two parallel and horizontal polish rods; sleeves are respectively welded at the top ends of the polish rods; the polish rods are respectively and fixedly arranged at both sides above the test chamber through the sleeves by two supports which are vertical with the ground; and the wheel shaft of the impact wheel is connected with a rocker arm through a connecting rod. According to the impact rolling model tester, an impact rolling action process on a soil body can be simulated. The impact rolling model tester is used for researching the reinforcement mechanism and the influencing factor of the impact rolling technology.

The invention relates to a pulse downdraft type high-temperature fixed bed gasification furnace, and belongs to the field of thermal power engineering. Pulse gas inlet channels, high-temperature steam inlet channels and a product gas outlet channel are formed in a gasification furnace body; the high-temperature steam inlet channels are symmetrically formed in the throat part of the gasification furnace body; the pulse gas inlet channels are formed above the high-temperature steam inlet channels; the product gas outlet channel is formed in the lower part of the gasification furnace body. According to the high-temperature fixed bed gasification furnace, high-heat-value solid fuels such as biomass, urban wastes and medical wastes can be gasified, the gasification efficiency, the gasification intensity and the fuel gas quality are high, the wastes can be harmlessly treated, reduced and recycled, the environmental protection effect is remarkable, the economic benefit is huge, and the market prospect is wide.

The invention provides an artificial slope surface structure for physical resistance experiment measurement,which comprises a base,an angle adjusting disc and a sliding block; an upward side guard board is fixedly connected with the front end and the rear end of the base respectively,a charging head is arranged in the front end plane of the side guard board at the front end of the base,and a datatransmission interface is arranged in the rear end plane of the side guard board at the rear end of the base. According to the invention,an inclined plate capable of ignoring force of friction,a first-stage friction bottom plate,a second-stage friction bottom plate and a third-stage friction bottom plate are arranged,and the friction resistance relationship among the first-stage friction bottom plate,the second-stage friction bottom plate and the third-stage friction bottom plate is 1-fold,2-fold and 3-fold sequentially,thereby being capable of forming a sharp contrast experiment at the time of performing the physical experiment,and facilitating accepting more vivid learning experience for students,regular growth of friction resistance facilitates summarizing various stress relationships on the inclined plate for the students.

The invention provides a double strut automatic control transformation adsorption experimental system with a self pressure charging system. The output end of a material supply device of the double strut automatic control transformation adsorption experimental system is connected with the input end of an adsorptive separation device thereof. The output end of the adsorptive separation device is connected with the input end of a product accumulation device. The adsorption column of the adsorptive separation device comprises a double adsorption column, a magnet valve set, a temperature pickup, a pressure pickup and a precision pressure gauge. The material supply device comprises at least two sets of raw material gas tanks, gas distributing tanks connected with the raw material gas tanks by a pipeline and a gas feed pressuring cylinder P1. All gas distributing tanks are connected by junction valves. The product accumulation device comprises a product tank and a product gas pressuring cylinder P2. A control system controls the opening and closing of the magnetic vale and the pressuring cylinder of each pipeline in the raw material supply device, the adsorptive separation device and the product accumulation device by the computer program so as to realize the separation and purification on gas. The double strut automatic control transformation adsorption experimental system is mainly used for simulating the industrial adsorption and separation process in a laboratory and provides the reference for industrial adsorption separation application data and process flow.