14results about How to "Convenient experiment" patented technology

The utility model discloses an animal fixing device for experiments, relates to the technical field of medical experiments, and solves the problem that an animal cannot be turned over quickly and conveniently while being fixed by the conventional animal fixing device. The operation panel and the telescopic frame are arranged in the box body, one end of the operation panel is hinged to the box body through a pin shaft, the operation panel is provided with a protrusion, the box body is provided with a groove, the protrusion is matched with the groove, the operation panel is provided with a through groove, the telescopic frame is connected with the through groove in a sliding mode, and the telescopic frame is connected with the through groove in a sliding mode. According to the utility model, the experimental part of the experimental animal can be simply and quickly changed, the operation of personnel is convenient, and the efficiency can be improved.

This invention discloses a multi-level context compression method and system, belonging to the field of information processing technology. Before performing multi-level compression, the method first performs semantic pre-screening, using a lightweight embedding model to evaluate the information entropy and semantic importance of messages, achieving context-aware dynamic budget allocation. Then, it performs multi-level compression sequentially: the first level is content budget control, which enforces an upper limit on the aggregated content size of each message before lightweight compression; the second level is fragment compression, selectively removing historical content with feature gating; the third level is lightweight compression, performing lightweight content compression and supporting delayed boundary message processing; the fourth level is context folding, performing fine-grained selective compression based on the dialogue state graph, retaining key decision nodes; and the fifth level is complete summarization, performing a complete content summary when resource usage exceeds a threshold. This invention also introduces reinforcement learning optimization, dynamically adjusting the compression strategy based on task completion rate feedback. This invention achieves a strategy that prioritizes fine-grained compression over coarse-grained summarization, differential compression based on semantic importance, topological compression based on graph structures, and adaptive strategy optimization.

The utility model belongs to the field of heavy truckles, and particularly relates to a heavy truckle walking testing machine which comprises a base, a mounting assembly is arranged at the top of the base and comprises two vertical plates fixedly connected to the top of the base, a PLC control device is fixedly connected to the outer side of one of the vertical plates, and the PLC control device is fixedly connected to the outer side of the other vertical plate. And sliding cylinders are slidably connected into the two vertical plates. A handle is rotated to drive a rotating disc to rotate, so that a first screw rod moves, sliding barrels are driven to move, the two sliding barrels are far away from an experiment wheel, a gear ring is driven to move, an insertion rod is separated from an insertion hole, a rotating ring is driven to be separated from an auxiliary groove at the same time, and the experiment wheel is separated. The experiment wheel can be supported by the stabilizing assembly, so that the experiment wheel can be replaced more conveniently, the time for replacing the experiment wheel is shortened, the working efficiency is improved, experiments of different road conditions can be conveniently carried out on the trundle through replacement of the experiment wheel, and the practicability of the device is improved.

This invention discloses a minimally invasive and controllable processing device for wheat grain skin, comprising: a feeding unit for storing wheat grains and discharging individual grains; a conveying unit for receiving wheat grains discharged from the feeding unit and driving them along a preset path in a single-grain carrying manner; a stress application unit for applying stress to the wheat grains on the conveying unit, causing cracks to form on the wheat grain skin; a visual inspection unit for acquiring and recognizing images of the wheat grains processed by the stress application unit to determine whether the crack formation state of the wheat grain skin meets the standards; and a rejection unit configured to reject unqualified wheat grains based on the detection results of the visual inspection unit, thus completing the sorting of qualified wheat grains. This invention achieves automation and precision in minimally invasive processing of wheat grain skin, greatly improving work efficiency, while also ensuring high consistency of the processed wheat grains, facilitating experiments.

The invention relates to a reagent and a kit for rapidly enriching microorganism DNA (deoxyribonucleic acid) and application of the reagent and the kit. The reagent comprises a first reagent, and the first reagent comprises a polyaluminum chloride solution and / or a polyferric chloride solution; the reagent further comprises a second reagent, and the second reagent comprises a sodium hydroxide solution. The reagent provided by the invention can be used for quickly and efficiently enriching DNA of microorganisms and sensitively detecting the species of microorganisms in a sample.

The application discloses a kind of based on ex vivo cell cosmetic detection equipment, including detection mechanism, the inside of the detection mechanism is provided with sterilization mechanism, the detection mechanism includes shell, the top of the shell is equipped with two storage grooves, the inner wall bottom of two storage grooves is fixed and is penetrated with discharge pipe, the inner wall one side of the shell is fixed with first hollow block, the inside of the first hollow block is provided with first recessed block, the inner wall other side of the shell is installed electric telescopic handle, the telescopic end of the electric telescopic handle is fixed with connecting plate, the inside of the shell is fixed with rectangular plate.The application can double, multiple detection to cosmetic by setting detection mechanism, that is, it can improve the detection accuracy of heavy metal detection device in cosmetic, effectively improve the use efficiency of cosmetic detection device, and facilitate better ex vivo cell cosmetic experiment in later period.

The invention discloses a CO2 huff-puff effect evaluation method, device and equipment and a storage medium, the method comprises the following steps: firstly, judging crude oil types, and determining a judgment parameter I and a judgment parameter II by combining the sum of carbon number contents corresponding to the crude oil types before and after huff-puff and the sum of carbon number contents corresponding to non-raw material types before and after huff-puff; according to the method, on the basis of raw material types, a CO2 throughput effect evaluation result is obtained by combining a threshold range to which a judgment parameter I and a judgment parameter II belong. According to the method, the CO2 huff-puff effect is evaluated from the perspective of crude oil total hydrocarbon composition and light-medium-heavy component change rules, and the CO2 huff-puff effect is qualitatively and quantitatively evaluated through the microscopic change of crude oil total hydrocarbon components.

The application provides a wind wave current sea ice coupling experiment device and experiment method based on a wave-making method, and belongs to the field of ship and ocean engineering experiments. The application solves the problem that the existing scheme cannot meet the requirements of wind wave current sea ice coupling experiments. The experiment device comprises a wind-making system, a wave-making system, a current-making system and a wave-absorbing device. The wind-making system and the wave-making system are arranged on the same side of the outside of an elongated ice water pool. The wave-absorbing devices are arranged on the two sides of the inside of the elongated ice water pool. The current-making system is arranged in the center of the elongated ice water pool along the length direction. The current-making system comprises a jet pipe, a flow partition plate and a bidirectional current-making pump. The number of the bidirectional current-making pump is two. The two bidirectional current-making pumps are arranged on the left and right sides of the flow partition plate. The device is mainly used for wind wave current sea ice coupling experiments.

The utility model relates to the technical field of EP tube mixing equipment, in particular to an instrument for oscillating and mixing a plurality of EP tubes, which comprises an oscillator, a control panel and a handheld top cover, and further comprises an oscillating interface arranged on the oscillator, a bearing bottom column is arranged in the oscillating interface, an upper bearing column is detachably mounted on the bearing bottom column, and a lower bearing column is detachably mounted on the upper bearing column. A plurality of fixing clamping rings are installed on the bearing bottom column and the bearing upper column, and pipe frames are detachably installed among the multiple fixing clamping rings. The storage component is mounted on the bearing bottom column and is used for storing the EP pipe; the EP pipe rack is provided with the connecting parts, a multi-layer combined assembly mode can be adopted through the connecting parts, the number of the usable EP pipe racks is increased, meanwhile, the EP pipe rack can be rapidly assembled and disassembled, an experiment can be conveniently carried out, meanwhile, experimental data errors can be reduced, and the experimental efficiency is improved. And thus, an expected accurate data result can be conveniently achieved.

This utility model discloses an easily adjustable microbial self-healing concrete testing device, relating to the field of microbial concrete testing devices, specifically an easily adjustable microbial self-healing concrete testing device, including a base, a collection tank fixedly installed at the top of the base, a graduated cylinder fixedly installed at the bottom of the collection tank, the graduated cylinder communicating with the collection tank, a fixing frame fixedly installed at the top of the base, an adjustable pressure pump that can adjust the output power, effectively changing the water pressure and flow rate, thereby making the experimental data more accurate and diverse, a temperature controller is provided, which can be adjusted to different temperatures according to the materials selected in the experiment, observing the repair effect of the repair material at different temperatures, improving the reliability of the data, and a toothed plate and other structures are provided, which, after repeated slow pressurization, can make the cracks of the sample meet the specified range to the greatest extent, thereby facilitating subsequent experiments, reducing the sample discard rate, and reducing experimental costs.

The application discloses a kind of vehicle slope driving dynamics characteristic simulation test systems, including mechanical executive mechanism and measurement and control system;Mechanical executive mechanism includes six degrees of freedom platform, conveyor belt and Ackerman steering electric drive car model;Conveyor belt is fixed to six degrees of freedom platform, and Ackerman steering electric drive car model is placed on conveyor belt;Six degrees of freedom platform is used to simulate slope terrain;Measurement and control system includes inclination simulation drive subsystem, conveyor belt measurement and control subsystem and electric drive car model vehicle-mounted control subsystem, respectively for the control and monitoring of six degrees of freedom platform, conveyor belt and Ackerman steering electric drive car model, realize vehicle slope driving dynamics characteristic simulation test.The application adopts six degrees of freedom platform, conveyor belt and Ackerman steering electric drive vehicle model to form experimental platform, can test full slope terrain, flexibly simulate slope of different angles, substantially reduce real physical environment experiment cost.

The utility model belongs to the field of tire durability tests, and particularly relates to a tire durability testing machine which comprises a base, two first vertical plates are fixedly connected to the top of the base, a PLC control device is fixedly connected to the outer side of one of the first vertical plates, a rotating assembly is arranged between the two first vertical plates, and the rotating assembly is fixedly connected with the PLC control device. The rotating assembly comprises a rotating stick fixedly connected between the two first vertical plates. According to the utility model, a pull rod is pulled to drive a second sliding rod to move, so as to drive a limiting tooth to move, so that the limiting tooth is separated from a limiting gear, and then a transmission plate is rotated to drive an auxiliary assembly and a mounting assembly to rotate, so that the outer side of an experimental wheel is propped against the outer side of a tire, and the tire can realize experiments of various road conditions; and the transmission plate can rotate, so that the position of the experiment wheel can be changed at will, the device can carry out experiments on tires with different sizes, and the adaptability of the device is improved.

The invention relates to a novel multifunctional fixed experimental platform, which belongs to the field of precise clamping and fixing tests and comprises a support guide assembly, a micro damping moving assembly, a precise control assembly and a clamping and fixing assembly. Wherein the tiny damping moving assembly can greatly reduce the influence of friction force generated by tiny deformation of the tested metamaterial on a final experimental result through a guide rail sliding block structure of the tiny damping moving assembly, and meanwhile, the precise control assembly can be suitable for fixing various complex metamaterial structures due to the high-degree-of-freedom deformation capability of the precise control assembly. According to the invention, the problem that the experimental result is not authentic, consistent and accurate because the surface of a universal test platform has a large friction factor in the positive and negative Poisson's ratio ballast and tension experiments of the conventional metamaterial structure is solved, and meanwhile, the mechanism is suitable for various complex working conditions and has the characteristics of high degree of freedom and high adaptability.

The invention discloses a uniaxial anisotropic magnetoresistive device and a preparation method and application thereof, the device comprises a substrate, a first non-magnetic metal electrode, an oxygen-terminated Cr < 2 > C-based MXene active layer and a second non-magnetic metal electrode, the first non-magnetic metal electrode is deposited on an insulating layer of the substrate, and the second non-magnetic metal electrode is deposited on an insulating layer of the substrate. The oxygen-terminated Cr < 2C >-based MXene active layer is deposited on the first non-magnetic metal electrode, the second non-magnetic metal electrode is arranged above the oxygen-terminated Cr < 2C >-based MXene active layer, and the first non-magnetic metal electrode, the oxygen-terminated Cr < 2C >-based MXene active layer and the second non-magnetic metal electrode are sequentially stacked to form a vertical transport structure. The non-magnetic metal / Cr < 2 > CO < 2 > active layer / non-magnetic metal sandwich structure is adopted, so that multi-layer magnetic lamination and complex exchange coupling design are avoided; remarkable AMR response to the magnetization direction in the plane containing the normal of the layer is realized, and the directional selectivity magnetic resistance characteristic which is highly sensitive to an out-of-plane component and is basically insensitive to an in-plane component is realized.