65results about How to "Guaranteed experimental results" patented technology

The invention relates to an automated mechanical arm stimulating device for an animal memory training system, which fundamentally solves the problems of excessive anthropic factor involvement and untimely and inaccurate stimulation of a stimulating system in the traditional maze device. The automated mechanical arm stimulating device comprises an orthogonal coordinate robot positioning system, a PLC (Programmable Logic Controller) system, a test mouse position detecting system and a stimulating system, wherein the orthogonal coordinate robot positioning system is established by adopting a rapid linear positioning mechanism; the test mouse position detecting system comprises four photoelectric thru-beam sensors which are respectively arranged at the door openings of the animal memory training system; the stimulating system comprises a mechanical arm with three pipelines; and the three pipelines respectively correspond to water, gas and food stimulation and respectively realize the supply of water, gas and foods by the PLC system. The automated mechanical arm stimulating device is used for more timely and accurately stimulating a test animal by matching with the animal memory training system formed by a closed rotary maze and ensures the test effect of the animal memory training system.

The invention discloses a tensile fixture for a plate-type sample and a using method of the tensile fixture, the tensile fixture comprises an upper fixture and a lower fixture, and the end parts of the upper fixture and the lower fixture are respectively provided with a T-shaped notch matched with the end part of the tensile sample; at least two T-shaped clamping blocks which are matched with theT-shaped notch and used for clamping a tensile sample are detachably installed in the T-shaped notch, and pressing plates are installed on the two side faces of the T-shaped notch respectively. The using method of the tensile fixture comprises the step of respectively installing the upper fixture and the lower fixture in an upper chuck and a lower chuck of a universal material testing machine to carry out a tensile test. When the tensile fixture provided by the invention is used for carrying out a tensile test on a plate-type tensile sample, the tensile sample can be clamped and fixed withoutperforating the end part of the tensile sample, so that the phenomenon that the tensile fixture slips and cannot clamp the sample tightly due to long-time use can be effectively prevented, and the experimental effect of the tensile test is effectively ensured.

The invention relates to an automated mechanical arm stimulating device for an animal memory training system, which fundamentally solves the problems of excessive anthropic factor involvement and untimely and inaccurate stimulation of a stimulating system in the traditional maze device. The automated mechanical arm stimulating device comprises an orthogonal coordinate robot positioning system, a PLC (Programmable Logic Controller) system, a test mouse position detecting system and a stimulating system, wherein the orthogonal coordinate robot positioning system is established by adopting a rapid linear positioning mechanism; the test mouse position detecting system comprises four photoelectric thru-beam sensors which are respectively arranged at the door openings of the animal memory training system; the stimulating system comprises a mechanical arm with three pipelines; and the three pipelines respectively correspond to water, gas and food stimulation and respectively realize the supply of water, gas and foods by the PLC system. The automated mechanical arm stimulating device is used for more timely and accurately stimulating a test animal by matching with the animal memory training system formed by a closed rotary maze and ensures the test effect of the animal memory training system.

The invention discloses a multi-cavity casing pressure test device and method, the multi-cavity casing pressure test device comprises a base, a bottom cavity separation ring, a casing test piece and a cover plate, the casing test piece is a cylindrical thin-wall piece, the upper end face and the lower end face of the casing test piece are provided with outer boss surfaces extending in the horizontal direction, the outer boss surface of the lower end face is provided with a connecting hole, and the connecting hole is communicated with the bottom cavity separation ring. The connecting holes are used for being connected with a base, the base is of a disc structure, an annular protrusion is arranged on the base, the connecting holes are formed in the upper end face of the annular protrusion of the base, a bottom cavity separation ring is arranged on the base, and a cover plate is arranged above the bottom cavity separation ring. The testing device is compact in structure and easy to install and adjust, the pressure load can be accurately applied to all the cavities of the test piece through the testing device, and the purpose of checking the structural rigidity and the welding quality stability of the casing test piece in a cavity dividing mode is achieved. The device is high in universality, can be used for similar aero-engine case pressure tests, is wide in application range, and has high engineering application value.

The invention discloses an anti-influenza virus or anti-inflammatory drug screening model based on living lung slices, which is characterized in that it comprises the following steps: first infecting the living lung slices with the virus, and then applying the drug to be tested to the virus-infected Live lung slices, and finally verify the effect of the drug to be tested by detecting changes in virus titers and related cytokines. The invention also discloses a method for constructing the screening model, which includes: preparation of lung slices, optimization of thickness of lung slices, evaluation of the correlation between neuraminidase activity and virus titer, and selection of inflammatory factors. Through this invention, a drug screening method based on living lung slices is constructed, which is more accurate and effective than traditional cell models in line with real body conditions.

The invention discloses a multifunctional wooden table. The multifunctional wooden table comprises a bottom cabinet, a storage cabinet, balance columns and a main table surface, wherein the storage cabinet is arranged above the bottom cabinet; the bottom ends of the four balance columns are arranged on the four corners of the upper surface of the storage cabinet; the heights of the balance columnscan be randomly adjusted; and the top ends of the four balance columns are arranged on the four corners of the lower surface of the main table surface. According to the multifunctional wooden table,the balance of the main table surface can be freely adjusted through the arrangement of the balance columns, so that the main table surface meets the experiment requirements; due to an additionally arranged movable table surface, the area of the table surface can be expanded, more physical instruments can be placed, and the experiment operation is facilitated; and when the excessive physical instruments do not need to be placed, the movable table surface can be stored in a storage groove, so that the occupied area of a physical instrument experiment table is reduced, and the space is saved.

The invention provides a preparation method for a smooth flat soft thin layer. The method comprises the following steps: heating mixed liquor of agar or gelatin and water and carrying out full stirring so as to form a prepared solution; evenly spreading a heatproof thin film on the surface of horizontally-arranged smooth flat glass with a temperature of 40 to 60 DEG C; disposing a bounding frame onto the surface of the heatproof thin film; slowly dumping the prepared solution into the interior of the bounding frame; cooling the prepared solution so as to form a soft thin layer; taking the bounding frame down, separating the heatproof thin film and the soft thin layer from the glass and tearing down the heatproof thin film adhering to the soft thin layer; etc. The preparation method for the smooth flat soft thin layer in the invention has the advantages of simple steps, a reasonable design and convenient operation; the prepared product is smooth and flat, capable of guaranteeing experimental effects.

The invention discloses an experiment auxiliary method, device and equipment, and the method comprises the steps: loading a method model of an experiment method to be experimented, and recording the operation specification information corresponding to the experiment operation of the experiment method in each experiment scene; sending operation specification information corresponding to the experiment operation in the current experiment scene to an experimenter; and collecting and recording experiment process data generated by experiment operation performed by the experimenter based on the operation specification information in the current experiment scene. According to the invention, the training cost of experimenters can be effectively reduced, and the timeliness, accuracy and recording efficiency of experimental data recording are improved.

The invention discloses a method for putting coal at the bottom of a two-dimensional similar material test bench. The specific steps are as follows: S1: Connect the fixing holes on the front and rear sides of the bottom of the two-dimensional similar material test bench with support brackets, and place between the two support brackets Install multiple sets of coal discharge turning devices, and then lock the locking device; S2: The channel steels are respectively located on the corresponding support brackets, and the experimental similar materials are placed on the coal discharging turning devices; S3: Wait for the similar experimental materials to solidify and then remove the front groove Steel, excavate a coal seam of a certain width at one end of the two-dimensional similar material test bench, and then seal the front side of the similar material for the test with transparent plexiglass; S4: Open the locking device, and use a wrench to lock it on the rotating shaft in the coal turning device Coal discharge steel plate, the coal discharge steel plate of this application can control the size of the coal discharge opening, and can be closed immediately and quickly after coal discharge, thus effectively preventing the lateral leakage of top rock model debris and ensuring the experimental effect.

The invention provides a precision compressor for purification production and processing of an ultra-pure element via an adsorption method. The precision compressor comprises a box body, wherein a purification mechanism and a backflow mechanism are arranged in the box body, a purification cylinder of the purification mechanism is arranged in the box body, a purity monitoring instrument of the backflow mechanism is arranged in the purification cylinder, the number of backflow pipes is two, each backflow pipe is provided with a one-way valve, and the other ends of the two backflow pipes separately communicate with a control box. According to the invention, the backflow mechanism is arranged in the box body, and the purity monitoring instrument is arranged in the backflow mechanism; when a small amount of gas which is not completely purified flows out of an adsorption box, the purity monitoring instrument controls an electromagnetic valve to be closed, the one-way valves on the backflow pipes are opened at the same time, and gas which does not reach the standard enters the control box from the backflow pipes and is subjected to adsorption and impurity removal again until the gas completely reaches the standard; and thus, the situation that a small amount of gas is blended into a collecting device is avoided, so purification accuracy is ensured, and experiment effect is ensured.

The invention discloses a reaction chamber and a molecular hybridization instrument. The reaction chamber includes a plurality of unit chambers arranged in parallel, each unit chamber has an independent reaction chamber, the reaction chamber is vertically arranged, and the reaction chamber The upper part of the chamber is provided with multiple sets of elastic injection ports and air pressure balance ports. The injection ports and air pressure balance ports are in a closed state in a natural state. Each unit chamber corresponds to a group of elastic injection ports and air pressure balance ports. The reaction chamber of the present invention can be applied to a molecular hybridization instrument, which reduces the volume of the molecular hybridization instrument and saves working space. And the setting of the air pressure balance port can ensure the balance of the reaction chamber air pressure. The injection port and the air pressure balance port are in a closed state in a natural state, which ensures that the liquid in the reaction chamber flows out or overflows when the reaction chamber is rotated, ensuring that the molecular hybridization The instrument can perform experiments and reactions better.

The invention relates to the technical field of metal material experimental devices, provides a system for testing the melting point of magnesium metal, and aims to solve the problems that in the existing magnesium metal melting point testing system, the environment variables are difficult to control, the state of the magnesium metal cannot be visually monitored in real time in testing process, and the real-time relation between the temperature and the weight of the magnesium metal cannot be established. The system comprises a hollow box body and a box door embedded in the front wall of the box body, a heating mechanism is arranged on the top wall of the box body, and a gas circulation mechanism is arranged above the heating mechanism; a weighing mechanism is arranged in an inner cavity of the box body, the heating mechanism comprises a heating furnace wall vertically installed on the top wall of the box body, a cylindrical quartz furnace cavity is vertically formed in the heating furnace wall in a penetrating manner, and the outer side of the annular side wall of the quartz furnace cavity is sleeved with a heating pipe. The system is particularly suitable for accurately testing the melting point of the magnesium metal, and has higher social use value and application prospect.

The invention discloses a thermostatic impregnation device used for a laboratory. The thermostatic impregnation device comprises a thermostatic oven and a rotary drum, wherein a left rotating shaft and a right rotating shaft are respectively and fixedly arranged at two ends of the rotary drum and rotatably connected with a support; the rotary drum and the support are arranged inside the thermostatic oven; the support is connected with and fixedly arranged at the bottom part of the thermostatic oven; the right rotating shaft penetrates through the side wall of the thermostatic oven and is rotatably connected with the side wall of the thermostatic oven; the right end of the right rotating shaft is fixedly connected with the output shaft of a motor; and the motor is fixedly arranged on and connected with the side wall of the thermostatic oven. When an impregnation experiment is performed, a sealed impregnation container filled with an impregnation solution is fixedly arranged inside the rotary drum; the door of the thermostatic oven is closed; the temperature of the interior of the thermostatic oven is set; the motor is started and drives the rotary drum arranged in the thermostatic oven to rotate; thus, the impregnation solution can be experimented under the conditions of a constant temperature and continuous and uniform shaking, so experimental effects can be effectively guaranteed, and the accuracy of experimental data is improved.