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

The invention discloses a simulation experimental method for a dynamic effect of coal and gas outburst. The simulation experimental method comprises the following steps: A, preparing a coal and gas outburst experimental system, wherein the system comprises a pressure container and a pipeline system which are fixed on the ground, a material inlet, an inflating hole and a sensor hole are formed in the pressure container, an outburst hole is formed in the pressure container, the outburst hole is connected with an explosion discharging device, the explosion venting device comprises a diameter variable pipe, a first bursting piece and a second bursting piece, whether the diameter variable pipe and the pressure container are inflated is controlled by a control chip according to the pressure intensity measured by the first sensor and the second sensor; B, filling coal particles into the pressure container from the material inlet; and C, gradually inflating the pressure container and the diameter variable pipe for increasing the pressure, and controlling the first bursting piece and the second bursting piece to be burst, so that the coal and gas outbursts. According to the simulation experimental method for the dynamic effect of the coal and gas outburst, the overall experimental effect of the dynamic effect is guaranteed to the maximal extent, and theoretical basis is provided for protecting and controlling the disaster of the coal and gas outburst.

The invention discloses a method for manufacturing a sample containing non-through cross joints. The method comprises the following steps: arranging a T-shaped iron sheet in a sample preparation mold;pouring by adopting a gypsum material; after the initial setting of the rock-like sample is completed, removing the suspension clasp and the T-shaped iron sheet are removed, wherein a gap existing inthe rock-like sample is a non-through cross joint of the rock-like sample. According to the method, sheet insertion on a rock-like sample with certain strength is prevented; the problem of possible failure of sheet insertion is solved, multiple groups of cross joints can be prefabricated at the same time, the positions of the cross joints can be controlled by adjusting the positions of the suspension clasps, the strength uniformity of the manufactured rock sample containing the non-through cross joints is well guaranteed, and the experimental effect is guaranteed. The method is applied to thefield of preparation methods of rock-like sample.

The invention discloses a flow field visual measurement experimental device based on matched index of refraction. The device comprises a main loop system, a first cooling loop system, a second coolingloop system and a bypass branch. The bypass branch divides the main loop system into a first part and a second part, the first cooling system is located at the first part, the second cooling loop system is located at the second part, and the first part includes a liquid tank, a conventional centrifugal main pump and a main heat exchanger, the first cooling system also includes a main heat exchanger, the first cooling system takes away the heat generated by working of the conventional centrifugal main pump on fluid through the main heat exchanger so as to control the temperature of the main loop system, the second part includes an electromagnetic flowmeter and a test section, the second cooling loop system is set between the electromagnetic flowmeter and the test section, and the second cooling loop system is set for controlling the fluid temperature of the test section, and the bypass branch regulates the flow passing through the test section.

The invention relates to the field of chemical reaction devices, and in particular, relates to a container-free ultramicro chemical reaction observation device. The invention discloses the container-free ultramicro chemical reaction observation device composed of a base, a protective cover, a protective cover top cover, a reagent adding device, a cleaning device and a waste liquid collector. The protective cover is mounted on the base, the protective cover top cover is mounted at the top of the protective cover, a plurality of hole sites are formed in the surface of the protective cover top cover, and the hole sites are used for mounting the reagent adding device and the cleaning device; the waste liquid collector is arranged below the reagent adding device and the cleaning device and is used for receiving a reaction product or cleaned waste liquid. The chemical reaction observation device solves the problems that an existing chemical reaction observation device is poor in observationeffect and is not universally popularized in teaching. The device is simple in structure, low in cost, convenient to manufacture, easy and convenient to operate and convenient to popularize.

The invention discloses a simple small projectile launcher enabling a projectile to obliquely enter water at medium and low speeds. The simple small projectile launcher comprises a guide rail, a spring, the projectile, strings, a fixing device and a baffle. The guide rail comprises a hollow cylinder part located on the front section and provided with double holes and a half hollow cylinder part located on the rear section, the spring is put in the hollow cylinder part on the front section, the upper half portion of the hollow cylinder on the rear section is hollowed out, and the lower half portion of the hollow cylinder on the rear section serves as a projectile movement rail. The strings are bound on the baffle and penetrate out of the small holes in the front end of the guide rail, the spring is put between the baffle and the guide rail, the fixing device is used for pressing the projectile on the guide rail, and the tail of the projectile makes contact with the baffle. The simple small projectile launcher has the beneficial effects that the device is simple, the operation is easy, disassembly is easy and convenient, speed variables can be controlled, and the cost is low.

The invention discloses a bill number identification method and system based on a deep neural network, and the method comprises the steps: sequentially carrying out the graying processing, binarization processing, normalization processing and two-dimensional image mapping one-dimensional data processing of an obtained two-dimensional mixed-shot bill original image, and greatly reducing the data size while maintaining the image information. Time waste caused by data transmission is reduced, and user experience is improved; by designing an OCTC model, introducing a one-dimensional convolution operation to perform feature extraction and image category calculation on image data, and using a plurality of small-size convolution kernels to increase a model receptive field, the experimental effect is ensured, the model parameter quantity is reduced, the effect of a lightweight model is realized, and storage and use by a user are facilitated; according to the method, the user can receive the judgment result of the number of bills in the image while uploading the image, the user experience of a mixed shooting bill recognition system is improved, meanwhile, the system is helped to carry out subsequent bill target detection and content recognition tasks, and real-time work of the system is achieved.

The invention discloses an absorption cell structure of a medicine absorption sampling system. The absorption cell structure is characterized in that a permeation film is arranged at the center of theabsorption cell, a mother liquor cavity is formed on one side of the permeation film, and an absorption cavity is formed on the other side of the permeation film; a mother liquor outlet is formed inthe top of the mother liquor cavity, and a mother liquor inlet is formed in the bottom of the mother liquor cavity; a drainage hole is formed in the top of the absorption cavity, and a solvent entrance is formed in one side of the bottom of the absorption cavity. Via the magnetic effect, the stirrer is driven to rotate, so that the stirrer is rotated in the absorption cavity to simulate the bloodflowing in a human body, the experiment is facilitated, and the use effect is good.

The invention belongs to the technical field of bioexperiments, and particularly relates to a cleaning light-resisting airing box for the immunohistochemical stain experiment. The cleaning light-resisting airing box comprises an outer shell, a control panel, a hatching cleaning device, an airing device, a moisturizing layer and an electric plate layer, wherein the outer shell is a rectangular boxbody, the hatching cleaning device, the airing device, the moisturizing layer and the electric plate layer are arranged in the box body of the outer shell, the control panel is arranged on one side ofthe upper surface of the box body of the outer shell, a cover plate used for sealing and covering the box body is arranged adjacent to the control panel on the upper surface of the box body of the outer shell; an on-off key and a temperature and humidity regulating button are arranged on the control panel; a display screen is further arranged to display time, temperature and humidity. The cleaning light-resisting airing box integrates the three functions of resisting light, cleaning and airing, the probability of fluorescence quenching is reduced, the dust pollution is reduced, a sheet is prevented from cracking, the degree of cleanliness of the sheet is improved, and the experiment effect of the immunofluorescence is guaranteed.

The invention discloses a separation method of colonic intraepithelial lymphocytes (IEL). The separation method comprises the following steps: carrying out euthanasia on a mouse; pulling out a whole large intestine from an ileocecal region to a rectum position and transversely cutting; putting the intestine into a small culture dish; putting the intestine into 20ml of IEL isolation buffer; pre-heating in a water bath to 37 DEG C and cutting the intestine into small sections with the length of 4mm-5mm; putting the intestine sections into 60ml of the IEL isolation buffer; stirring tissues in the IEL isolation buffer for 30min; filtering intestine extract by a filtering system; washing a beaker by 20ml of RPMI 1640 containing glutamine; filtering a washing solution and sub-packaging IEL extract into two 50ml plastic tubes; and taking an obtained sediment dyed flow antibody. The method disclosed by the invention has the characteristics of convenience in operation, time saving and labor saving, and is suitable for popularization and application.

The invention discloses a water-phase method for preparing surface modified functional cadmium sulfide ultrafine particles, which belongs to the technical field of cadmium sulfide preparation method. According to the method, cadmium nitrate and sodium sulfide are adopted as raw materials, and mercaptoacetic acid is adopted as a modifying agent. An experiment method comprises the steps that: a cadmium nitrate solution is continuously stirred, and mercaptoacetic acid is gradually dropped in; when mercaptoacetic acid addition is finished, a reaction is sufficiently carried out for a period of time; the pH value is regulated by using a sodium hydroxide solution, such that the mixture is alkaline; when solution pH value is stable, nitrogen is delivered in for removing oxygen; a sodium sulfide solution is gradually dropped in; the mixture is heated and the temperature is controlled, and the mixture is sufficiently stirred for a period of time, such that a final CdS/-SCH2COOH sample is obtained. According to the water-phase method for preparing surface modified functional cadmium sulfide ultrafine particles, during the preparation process, cadmium sulfide ultrafine particle surface functionalizing can be directly realized. The process flow is simple, and the reaction is easy to operate. The method is a high-efficiency functional cadmium sulfide ultrafine particle preparation method.

The invention provides a multifunctional needle for experimental animal ear margin intravenous injection dosing transfusion and fixing. The needle comprises a transfusion pipe, a three-way adjusting valve and a needle tube. One end of the transfusion pipe is provided with a syringe, a fixing clip is arranged on the syringe, the three-way adjusting valve is installed in the transfusion pipe, and three channels of the three-way adjusting valve are connected with the front section and the rear section of the transfusion pipe and the needle tube respectively. The multifunctional needle can achieve ear margin intravenous injection dosing, anesthesia, transfusion and fixing of experimental animals, achieves firm fixing, can conduct injection dosing, anesthesia and transfusion simultaneously without pulling and inserting the syringe for multiple times, enables an experiment to go on wheels and ensures experiment effects.

The invention discloses a quantitative filling test tube. The test tube comprises a test tube body. The test tube body comprises a cylindrical glass tube. The lower part of the glass tube is an arc bottom. The radian of the arc bottom is 2.14. The top of the glass tube is provided with a filling pipe. A plug is arranged in the top end of the filling pipe. The filling pipe is a cylindrical pipe. The bottom of the filling pipe is provided with a tapered bottom, and the radian of the tapered bottom is 1:1.36. The lower end of the filling pipe is sleeved in the glass tube. A rubber sealing ring is arranged between the external wall of the filling pipe and the internal wall of the glass tube. The quantitative filling test tube has the advantages that the shortages of prior art can be overcome, and the structural design is reasonable and novel.

The invention discloses a method for preparing a honeycomb molecular sieve adsorbent by using red mud; the honeycomb molecular sieve adsorbent is prepared from the following raw materials: molecular sieve raw powder, water, red mud, an organic auxiliary agent, anti-crack glass fiber and citric acid, and the honeycomb molecular sieve adsorbent is obtained by mixing, pugging, extrusion forming, drying and roasting the raw materials. The red mud solid waste is recycled, meanwhile, the adsorbent has the advantages of being high in strength, large in adsorption capacity and good in regeneration effect, the adsorbent can be used for industrial VOCs adsorption, the production cost is reduced, meanwhile, a large amount of red mud can be fully recycled, no residues exist after roasting, the adsorption performance is not affected, the product quality is improved, the fracture toughness of the honeycomb zeolite adsorbent is improved, and the integrity of the adsorbent is ensured.

The invention discloses a molecular hybridization instrument and an application method thereof. The molecular hybridization instrument comprises a rack body, wherein a suction head placing part, a sample placing part, a reaction part, a control manipulator and a manipulator movement driving mechanism, wherein the reaction part is provided with a rotary bin and a reaction bin, the rotary bin is rotatably arranged in the rack body, the reaction bin is arranged in a placement cavity of the rotary bin, and the reaction bin is provided with a reaction cavity; and the control manipulator is providedwith a suction head operating mechanism, a liquid adding and liquid discharging operating mechanism and a control mechanism, the control manipulator is provided with a suction head mounting station,a sample liquid sucking station as well as a sample liquid injecting station and a liquid adding and liquid discharging station which are respectively corresponding to the suction head placing part, the sample placing part and the reaction part. The molecular hybridization instrument disclosed by the invention is reasonable in structural design and smaller in volume and can be used for carrying out an experiment of detecting more samples, and time required by the experiment is shorter and experiment effect is better.

The invention discloses a rapid bacillus concentration detection device which comprises a bottom plate, wherein a driving device is fixedly connected with the left side of the top of the bottom plate;a heating device is arranged at the top of the driving device; the driving device comprises an air cylinder; a piston is connected with the inner cavity of the air cylinder in a sliding manner; a moveable rod is fixedly connected with the top of the piston through a fixing part; and the top of the moveable rod penetrates through the driving device, extends to the inner cavity of a heating deviceand is fixedly connected with a push plate. Due to cooperation of the driving device, the heating device, a liquid outlet tube, a first liquid discharge tube, a second liquid discharge tube and a third liquid discharge tube, the rapid bacillus concentration detection device achieves an effect of sampling bacillus for multiple times, solves the problem that a conventional bacillus concentration detection device cannot take samples for multiple times, improves the accuracy of bacillus concentration detection, and thus ensures experiment results of bacillus concentrations.