380 results about "Beaker" patented technology

A method for detecting circularity of silicon carbide micro powder relates to the technical field of silicon carbide detection, and comprises the following steps: S1, turning on a flowing particle imager, preheating and then carrying out background detection; s2, adding standard particles into the sample pool, and enabling the flowing particle imager to perform automatic focusing; s3, adding the prepared silicon carbide micro powder sample into a sample pool, and detecting by using a flowing particle imager; and S4, storing the detection result, checking the silicon carbide micro powder particle image, and recording the detection result. The preparation of the silicon carbide micro-powder sample comprises the following steps: S31, adding the dried silicon carbide sample into a dry and clean beaker; s32, sequentially adding an impregnating compound, a dispersing agent and deionized water into the beaker; s33, carrying out ultrasonic dispersion; and S34, taking out the uniformly mixed sample. The method can solve the technical problem of detection failure caused by easy agglomeration of the silicon carbide sample when the flowing particle imager is used for detecting the circularity of the silicon carbide micro powder.

A heating assembly is arranged on the outer side of the bottom of an inner shell, an outer shell comprises an outer side shell forming a vacuum layer with the side wall of the inner shell, the outer shell further comprises an outer bottom shell, and the outer bottom shell, the outer side shell and the outer wall of the lower bottom of the inner shell form a containing cavity for containing the heating assembly. The outer shell comprises an outer side shell forming a vacuum layer with the side wall of the inner shell, the side edge heat preservation effect is good, the outer bottom shell, the outer side shell and the outer wall of the lower bottom of the inner shell form a containing cavity for containing a heating assembly, the whole body is independent, reliable and convenient to carry, can be matched with a power line or a power source to be carried, is lighter, and can be electrically connected when the power source is needed. And the inner shell and the outer shell are arranged, so that cleaning and disinfection are facilitated, the containing cavity for containing the heating assembly is formed, good heat preservation can be achieved, and the complete heating effect is achieved.

The application provides a funnel spout and beaker position detection method, system, terminal and medium, comprising: acquiring a video of experimental operation; extracting any image in the video and inputting the image into a ResNet18 model to obtain the position relationship of the funnel spout and the beaker on both sides; inputting the key frame of the video into a CRNN model to obtain the drop state of the funnel spout; and judging whether the funnel spout and the beaker are attached to the wall according to the position relationship of the funnel spout and the beaker on both sides and / or the drop state of the funnel spout. The application performs multi-directional detection and judgment, avoids misjudgment, greatly improves the test accuracy, and saves a large amount of manpower cost.

The present application relates to laundry liquid preparation technical field, specifically disclose a kind of detection device for stickiness of laundry liquid preparation, including base and device body, the top of base is connected with device body by telescopic cylinder, the bottom of device body is provided with detection mechanism, the top of base is slidably installed with moving plate, the top of moving plate is rotatably installed with rotating frame, the inside of moving plate is provided with drive mechanism for driving rotating frame rotation adjustment, the two sides of rotating frame outer wall are provided with clamping mechanism for clamping and fixing beaker with laundry liquid sample. In the application, during the process that device body drives rotor to detect laundry liquid in beaker, clamping mechanism can clamp and fix beaker, avoid beaker to move or tilt during detection process, ensure the stability of beaker during detection process is not affected, to improve the precision of laundry liquid stickiness detection.

The invention discloses a preparation method for improving the deacetylation degree of chitosan, which comprises the following steps: step S1, crushing crab shells, cleaning the processed eriocheir sinensis shells, drying at 65 DEG C, grinding the dried crab shells, and sieving with a 100-mesh sieve to prepare crab shell powder; s2, plasma pretreatment: mixing the crab shell powder with distilled water according to the ratio of 1: 20 (w / v), performing pretreatment by adopting atmospheric pressure plasma jet, putting a beaker loaded with a crab shell powder solution into a 180 rpm magnetic stirrer, treating for 60 minutes under the conditions that the power is 750 W and the gas flow is 1.2 L / min, washing to be neutral, and drying at 65 DEG C to obtain the plasma pretreated crab shell powder, the deacetylation degree of chitosan is increased by 4-7% through plasma pretreatment, the product purity is equivalent to that of commercial chitosan, and the production cost is saved; the performance of the chitosan extracted by the method is superior to that of chitosan extracted by a traditional chemical extraction method.

The utility model relates to a water-soluble hexavalent chromium filtering and collecting device, which belongs to the field of laboratory collection, and comprises a Buchner funnel (1) and a tray (2), the Buchner funnel (1) comprises a funnel opening (3) and a funnel neck (4), the funnel neck (4) is arranged at the bottom of the funnel opening (3), the funnel neck (4) is connected with the tray (2), the Buchner funnel (1) is taken out, and a beaker (11) filled with filtrate is taken out at the same time. The Buchner funnel (1) is provided with a suction filtration bottle (5), the suction filtration bottle (5) is provided with an extraction opening (6), the extraction opening (6) is connected with an extraction pipe (7), the extraction pipe (7) is connected with the suction filtration bottle (5), and the suction filtration bottle (5) is connected with the suction filtration bottle (5). The exhaust pipe (7) is connected with a vacuum pump (8), so that the filtering effect is improved, and the filtering is faster.

The application discloses a preparation method of a lithium battery negative electrode material Mo2C / NiO@GO carbon nanofiber, and comprises the following steps: S1, weighing nickel oxide, ammonium molybdate tetrahydrate and a solvent and performing ultrasonic treatment; S2, weighing a high-molecular surfactant, adding the high-molecular surfactant into a beaker and stirring at normal temperature to obtain a spinning solution; S3, adopting a needle tube to suck the spinning solution and performing electrostatic spinning to obtain a precursor, taking down the precursor after spinning is completed, and drying the precursor in an oven; S4, pre-sintering the dried precursor; S5, performing suction filtration on the pre-sintered precursor; and performing heat treatment on the suction filtration and drying precursor to obtain the required lithium ion battery negative electrode material. The preparation method of the application obtains the Mo2C / NiO@GO material with a three-dimensional network structure, improves the specific surface area and the conductivity of the negative electrode material, and the obtained battery has high specific capacity and good cycle stability, and has significant economic value.

According to the cleaning and separating device for the magnetic metal particles, through cooperation of the overturning motor, the beaker containing barrel, the rotating motor, the water adding faucet, the flushing faucet, the peristaltic pump, the water tank, the electromagnetic valve and the controller, a beaker is placed in the beaker containing barrel to be clamped and fixed, the device is started, and the magnetic metal particles are separated from the beaker containing barrel. The water adding faucet at the top adds quantitative degaussing water into the beaker, meanwhile, the magnet at the bottom is driven by the rotating motor to work for preset time, adsorption of the magnet and magnetic particles in the beaker, rotation stopping of the magnet at the bottom and water pouring by overturning the beaker by about 95 degrees are achieved, and the actions of water adding, magnet rotating, beaker overturning and beaker aligning are cyclically conducted. After the water pouring action is completed, the transverse flushing faucet is started to move rightwards to extend into the beaker for flushing, and after transverse flushing is completed, the beaker is aligned, the beaker is taken out, and the magnetic particulate matter is taken out. The device is simple in structure, convenient to operate, high in treatment efficiency, good in magnetic particle cleaning and separating effect and beneficial to application and popularization.

The utility model discloses a kind of cell crushing devices for biological gene detection, it is related to cell crushing technical field, including crushing box, the front surface of crushing box is equipped with box door, hinged joint is connected between the box door and crushing box, the bottom of crushing box is fixedly connected with multiple supporting feet, and the top of crushing box is embedded with operating panel, the middle position of box door is embedded with visual window, the inside of crushing box is fixedly connected with ultrasonic generator near top position, the bottom of ultrasonic generator is connected with conducting rod, the inner surface of crushing box is connected with auxiliary positioning structure.The utility model said a kind of cell crushing devices for biological gene detection, can be positioned to the position of beaker loaded with cell liquid, can be adjusted to the appropriate position, can ensure the accuracy of cell crushing position, can be conveniently supported to the placement seat after adjustment, can improve the relative stability of cell crushing device work.

The invention relates to a preparation method and application of conductive adhesive hydrogel based on cyclodextrin, required components comprise a water-soluble adhesive, PEDOT: PSS, PVA and a water-soluble ionic conductive agent, and the water-soluble ionic conductive agent adopts one of NaCl, KCl or sodium citrate. The preparation method comprises the following steps: 1, adding the ionized water and the PEDOT: PSS dispersion liquid into a beaker, and uniformly stirring; 2, adding PVA, a water-soluble ionic conductive agent and a water-soluble adhesive into the mixed solution formed in the step 1, and standing to enable PVA particles to absorb water and swell; 3, stirring the mixed solution prepared in the step 2 under a heating condition to uniformly dissolve the components to obtain a precursor mixed solution of the hydrogel; and 4, performing freeze-thaw cycle on the precursor mixed solution obtained in the step 3 to form a stable physical cross-linked network, thereby obtaining the conductive adhesive hydrogel. The precursor mixed solution prepared by the invention has excellent printability, and the hydrogel formed after crosslinking simultaneously shows the characteristics of high conductivity, stable adhesion and low modulus.

The invention relates to the technical field of copper-clad plate preparation, in particular to a method for detecting a prepreg glass yarn cavity, which comprises the following steps: preparing a prepreg sample; preparing a crystal glue solution, namely mixing 15-25 parts of an acrylic monomer, 5-10 parts of a solvent and 0.5-1 part of an accelerant, and pouring the mixture into a beaker; sequentially adding 40-60 parts of an acrylic polymer, 3-5 parts of a coupling agent, 0.1-0.5 part of a surface treating agent and 15-20 parts of transparent powder, fully mixing, and uniformly stirring by using a stirrer to obtain a crystal glue solution; glue filling is conducted on a prepreg sample through the crystal glue solution to manufacture a prepreg sample slice, after the slice is ground, the slice is observed through a microscope, and detection of the glass yarn cavity of the prepreg sample is completed. Through a special glue pouring method, the cavity condition can be observed in a prepreg state, the glass yarn cavity can be detected without pressing a copper-clad plate, and the time and the labor cost are saved.

The invention relates to the fields of environmental protection, fire protection and new materials, in particular to a nano-silver self-assembled efficient disinfectant synthesized by a water extract of epimedium stems. The method comprises the following steps: weighing 10 g of epimedium stem powder, putting the epimedium stem powder into a beaker, then adding 100 mL of purified water into the beaker, putting the beaker on an electrothermal furnace, heating until boiling, then heating for 30 min, after a solid-liquid mixture is cooled, filtering impurities by using gauze, centrifuging for 10 min at a speed of 4000 r / min, retaining supernate, and fixing the volume to 100 mL; 0.17 g of silver nitrate powder is weighed and added into a beaker, then 100 mL of purified water is added for dissolution, and a silver nitrate solution is prepared; adding 20mL of the water extracting solution of the epimedium stems after constant volume into the beaker; mixing the solution, and stirring for 2 hours by using a magnetic stirrer; and the temperature is 60 DEG C to obtain the herba epimedii water extract-nano-silver self-assembled solution.

The invention discloses a preparation method of nano sulfur, which comprises the following steps: (1) adding 5-10 g of sublimed sulfur and 50 mL of N-methyl pyrrolidone into a 300 mL round-bottom flask, then placing the round-bottom flask in an oil bath at 25-125 DEG C, and stirring for 15-60 min; and (2) filtering the mixture to take filtrate, then adding the filtrate into a 300 mL beaker, adding 100-200 mL of deionized water into the beaker at one time at normal temperature under vigorous stirring, and continuously stirring for 5-10 minutes. And (3) centrifugally separating the mixture at 8000-12000 rpm for 5-10 min or filtering the mixture to obtain a precipitate, and washing the precipitate with deionized water for 3 times. And (4) placing the washed precipitate in a vacuum drying box at 80 DEG C, and drying for one night to obtain the nano sulfur. Researches show that sublimed sulfur is taken as a raw material, N-methyl pyrrolidone is taken as a solvent, deionized water is taken as a titration solvent, nano sulfur is prepared by adopting a heterogeneous titration method, and the method is simple in process, easy to operate, easy in condition control, low in synthesis cost and suitable for industrial large-scale production.

The invention relates to an Au / Ag / g-C3N4 composite material and a preparation method thereof.The preparation method comprises the steps that urea, silver nitrate and HAuCl4 are added into a clean beaker and tightly wrapped with tinfoil, deionized water is added for dissolution, and then magnetons are added and stirred on a magnetic stirrer in a dark place till the magnetons are completely dissolved; drying the mixture solution in a drying oven, grinding the mixture solution into powder by using an agate bowl after the mixture solution is completely dried, and putting the powder into a corundum porcelain boat; the preparation method comprises the following steps: performing thermal polymerization treatment on a mixed grinding material of urea, silver nitrate and HAuCl4, heating a tubular furnace to 540 DEG C under the protection condition of argon flow, keeping the constant temperature for 1-3 hours, and finally cooling the tubular furnace to room temperature in an argon atmosphere environment to obtain the Au / Ag / g-C3N4 composite material. Au and Ag are introduced to weaken hydrogen bonds in carbon nitride, so that the technical problem that future application of existing g-C3N4 is limited by specific surface area, insufficient visible light absorption and carrier recombination is solved.

The utility model discloses a purification device for precious metal platinum recovery in the technical field of platinum recovery, which comprises a support table, a blanking mechanism and a pushing mechanism arranged above the support table, a quartz beaker arranged on the left side of the support table, a second rubber base plate arranged at the rear end of the quartz beaker, and a motor body mounted at the rear end of the second rubber base plate. A connecting plate is fixedly mounted on the outer wall of the motor body, telescopic rods are fixedly mounted at the left end and the right end of the connecting plate correspondingly, and the purifying device for precious metal platinum recovery is composed of a supporting table, a discharging mechanism and a pushing mechanism. According to the device, core assemblies such as clamping and overturning of the quartz beaker, precise liquid injection of the electric control valve, solid-liquid separation of the nylon net body, automatic pushing of the gas rod body and high-temperature smelting of the fire-jet head are modularly integrated, so that full-process automatic continuous operation of acid leaching impurity removal, waste liquid recovery, washing and drying and smelting purification is realized; the problem of low efficiency of multi-container step-by-step operation in the traditional process is effectively solved, the operation safety is improved, and the precious metal loss rate is reduced.

The invention provides a magnesium oxide activity detection device, and belongs to the technical field of detection instruments, the magnesium oxide activity detection device comprises a fixed base, a mounting groove is reserved in the fixed base, a heating electric furnace module is arranged in the mounting groove, an asbestosed wire gauze is arranged on the heating electric furnace module, a beaker is arranged on the asbestosed wire gauze, and three vertical rods are arranged on the fixed base. The three vertical rods are fixedly connected through a connecting cross rod, a thermometer is placed in the beaker, a support is arranged between the vertical rods and the thermometer, and the two ends of the support are connected with the thermometer through a fastener A and a fastener B and the vertical rods respectively. The magnesium oxide activity detection device solves the problems that when a thermodetector in an existing magnesium oxide activity detection device is assembled on a vertical rod through a bolt and an annular buckle, tools such as a wrench need to be used for assisting in the adjusting process, and use is inconvenient.

1. The name of the design product: beak cup. 2. The use of the design product: for beak cup. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. Name of the product in this design: Lid-covered beaker. 2. Purpose of this design: It is used to hold solutions or as a reactor, and can withstand strong acid and alkali liquids to prevent the loss of substances in the liquid during high-temperature and long-term processing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other matters requiring explanation: The cup body of this design product is made of transparent material.

The utility model discloses an analytic titration device for medicine inspection, which relates to the technical field of medicine detection and comprises an operating frame and a rotating disc, the rotating disc is positioned inside the operating frame and is rotatably connected with the operating frame, a mounting frame is fixedly mounted at the bottom of the operating frame, and a motor is fixedly mounted at the bottom of the mounting frame. The transmission device has the advantages that the transmission shaft rotates with the disc as the center point, and rotates along the sliding groove formed in the rotating disc while rotating, so that the rotating disc is driven to rotate through operation of the transmission shaft and matching of the transmission shaft and the sliding groove; the burette above the beaker can be changed while the rotating disc rotates, so that the burette does not need to be disassembled and remounted, the problem of frequently replacing the burette is effectively solved, the operation sequence is simplified, the experiment failure caused by untimely titration is avoided, and the detection progress is improved.

The application provides a deep rock in-situ heat preservation coring microbead composite material and a preparation method thereof, characterized in that: hollow microbeads and epoxy resin are weighed and placed in a beaker, a mechanical stirrer is used for stirring, the slurry uniformly stirred is transferred into a mold, and heating is performed in an oven according to a curing temperature rising program. The application also provides an epoxy resin hollow microbead composite material, characterized in that: the epoxy resin hollow microbead composite material is S60 hollow microbead composite material, when the volume fraction of S60 hollow microbeads in the composite material is 50%, the compressive strength reaches 143.84 MPa; further, the epoxy resin hollow microbead composite material is prepared by the above preparation method.

The utility model discloses a beaker placing tray for a battery tester, which belongs to the technical field of battery testing equipment and comprises a base, a plurality of accommodating grooves are uniformly distributed at the top of the base along the circumferential direction, and elastic clamping mechanisms are arranged on the inner walls of the four sides of each accommodating groove. A beaker is positioned through four-direction synchronous clamping, one side of the base is rotationally connected with an openable cover plate through a hinge piece, a plurality of sealing assemblies are installed on the bearing face of the cover plate, the sealing assemblies and the corresponding containing grooves form an axial alignment relation, and when the device is closed, multi-stage sealing protection is formed. Through structure optimization, stable positioning of the beaker, multi-stage sealing protection and ordered cable management are realized.

This invention discloses a simulated oxidation detection device and method for lead-acid battery casings, including a heating furnace, a beaker placed on the furnace, and an adjusting bracket placed on the side of the furnace. One end of the adjusting bracket extends above the beaker, and a temperature measuring element and a sample are connected to the adjusting bracket, with the temperature measuring element and the sample immersed in cooling water. During detection, the heating furnace is turned on, and cooling water from a workshop water bath is placed in the beaker, with the internal water temperature heated to a stable 40℃±1℃. Two prepared samples are taken: sample A is wrapped with a PE protective film, and sample B is without a film. They are connected to the bracket, with one end immersed in water, and continuously bathed for 24 hours. Finally, the two samples are compared with a control sample. Compared with existing technologies, this invention has a scientifically sound structure, is simple and convenient to operate, and can screen out batches of ABS granules with poor acid resistance and heat resistance at the material stage, preventing them from flowing into subsequent injection molding and battery assembly processes, thus eliminating the phenomenon of discoloration and mottling of the casing from the source.

The invention discloses visual extraction equipment which comprises a supporting and adjusting device, an extraction bottle, a medicament bottle, a beaker and a material receiving vessel and further comprises a shaking device, the shaking device is arranged on the supporting and adjusting device, the supporting and adjusting device comprises an operation table, and one side of the top end of the operation table is fixedly connected with a supporting side plate; a supporting plate is fixedly connected to one end of the top end of the supporting side plate, two first anti-slip strips are symmetrically and fixedly installed at the top end of the supporting plate, a first moving plate is movably connected to the top end of the supporting plate, and two sliding clamping plates are symmetrically and fixedly connected to the bottom end of the first moving plate. When liquid medicine and an extraction agent are added into the extraction bottle, the discharge amount can be confirmed through the scale marks on the outer side of the medicine bottle, and the visual dosage control mode can ensure that the amount of the extraction agent added into the extraction bottle each time meets the experiment or production requirements.

The utility model discloses a high-sealing rotary evaporator, and relates to the technical field of evaporators. The device comprises a base, one end of the base is fixedly connected with a water bath heater, one end of the base is provided with a three-way pipe, the top of the three-way pipe is fixedly connected with a condensation pipe, the bottom of the three-way pipe is fixedly connected with a collecting pipe, the input end of the three-way pipe is fixedly connected with a connecting pipe, and the top of the connecting pipe is fixedly connected with a vacuum pump; the input end of the connecting pipe is rotationally connected with an air guide pipe. When the locking threaded ring is pulled to be arranged at the input end of the air guide pipe in a sleeving mode, the locking threaded sleeve is screwed to be in threaded connection with the locking threaded ring, one end of the T-shaped sealing ring is pushed to be inserted into the first rubber sealing ring, and therefore the first rubber sealing ring is extruded to deform and fills a gap between the locking threaded ring and the air guide pipe; therefore, the connection stability and sealing performance between the evaporation beaker and the gas guide pipe are effectively improved, and the evaporation efficiency of the device and the accuracy of experimental results are improved.

The utility model discloses a geological soil detection sample preparation device which comprises a sample preparation table, baffles are vertically installed at the two ends of the sample preparation table, a lifting plate is horizontally arranged over the sample preparation table, the bottom end of a lead screw is in transmission connection with a driving motor, a plurality of insertion openings are evenly formed in the lifting plate, and the insertion openings are in transmission connection with the lead screw. Sliding blocks are horizontally installed at the two ends of the lifting plate, first grooves are formed in the inner side walls of the baffles in the length direction, and the sliding blocks slide in the first grooves in a matched mode; the device has the beneficial effects that the plurality of funnels are correspondingly placed in the plurality of sockets, so that the plurality of funnels can quickly add sample soil or reagents into the plurality of beakers which are correspondingly placed below, the efficiency of preparing a plurality of samples is improved, and meanwhile, the height of the lifting plate is adjusted; the distance between the funnel and the beaker below the funnel can be shortened, so that the filled materials are prevented from overflowing, the volatilization is reduced, and the experiment precision is ensured.

The invention relates to the technical field of adsorbents, and discloses a preparation method and application of a sunflower stem pith foam adsorption material.The preparation method comprises the steps that microfibrillated cellulose, quaternized chitosan and sunflower stem pith powder are put into a beaker to be mixed, a cross-linking agent is added, and stirring cross-linking is conducted; and then cryopreserving and thawing to prepare the composite sunflower stem pith foam adsorption material with the dispersed sunflower stem pith powder wrapped by the chitosan. Chitosan is used as a support to support and disperse sunflower stem pith powder, so that sunflower stem pith agglomeration is avoided, and active adsorption sites are increased. The adsorption capacity of the sunflower stem pith foam adsorption material prepared by the method is greatly increased, the adsorption capacity of Congo red is 9 times that of uncompounded sunflower stem pith, the performance is greatly improved, and the sunflower stem pith foam adsorption material can be applied to adsorption of hydrophobic and anionic azo dyes and has a good application prospect. The adsorbent has the advantages of low cost, simplicity in preparation, no chemical pollution, reproducibility, excellent adsorption performance and the like.

The application provides a synthetic leather hydrolysis resistance accelerated test water bath device, and relates to the technical field of water bath devices.The device comprises a heating water bath and beakers, a water bath tank is formed in the top of the heating water bath, detachable equal division fixing mechanisms are arranged in the water bath tank, the internal alkali solution capacity of multiple groups of beakers can be automatically equalized, operation errors generated by manual solution preparation are eliminated, and the reaction conditions of test samples in each group are consistent; meanwhile, the mechanisms can position and fix the multiple groups of beakers, and unify the water bath placement height of the beakers, so that the problems of beaker deviation and dumping caused by water bath fluctuation and buoyancy are reduced, the heating and hydrolysis environment of samples in each group is completely consistent, the accuracy, stability and comparability of parallel test data are greatly improved, in addition, the device is convenient to disassemble and assemble, has high universality, the water bath temperature can be stabilized by cooperating with a cover plate, and the overall test efficiency is improved.

The utility model provides a heating device for chemical analysis, which comprises a base and is characterized by further comprising a beaker clamping mechanism, a door-shaped bracket, a stirring and heating assembly, a rotating mechanism and a lifting mechanism, wherein the base is provided with a heating pad used for heating a beaker and an inserting groove located in the outer side of the heating pad, the beaker clamping mechanism is movably inserted into the inserting groove, and the stirring and heating assembly used for stirring and heating objects contained in the beaker is arranged above the beaker clamping mechanism. A beaker clamping mechanism is arranged on the base, a stirring and heating assembly is arranged on the beaker clamping mechanism and connected with the rotating mechanism used for driving the stirring and heating assembly, the rotating mechanism is connected with the lifting mechanism arranged on the door-shaped support, and the door-shaped support is arranged on the base and located above the beaker clamping mechanism, the stirring and heating assembly and the rotating mechanism. The beaker heating device realizes integral heating of contents in the beaker, is convenient for operators to move the heated beaker, and avoids accidents such as scalding or slipping caused by directly taking the hot beaker.

The application provides a method and system for judging whether a beaker experiment is successful, comprising: obtaining a video stream of the beaker experiment and performing region of interest detection; a plurality of images containing the region of interest obtained by the region of interest detection constitute a picture set of a region of interest period of the beaker experiment; a full convolutional neural network (FCN) model is trained based on the picture set of the region of interest period of the beaker experiment; the picture set of the region of interest period is subjected to strong supervision target classification frame by frame based on the trained FCN model, and a classification result of each frame in the picture set of the region of interest period is obtained; and whether the experiment operation in the video stream is successful is determined based on the classification result of each frame in the picture set of the region of interest period. The data required by the application is greatly reduced, and the application is suitable for video data size in actual experiment operation process; and the target region can be quickly focused on by detecting the region of interest, and the detection precision is effectively improved.

The utility model discloses a carbon nanotube dispersing device which is characterized in that solvent temporary storage cylinders are symmetrically erected at the upper parts of the left side and the right side of a cabinet body, flow meters are fixedly communicated with the centers of the bottoms of the solvent temporary storage cylinders, and liquid guide pipes are fixedly communicated with the centers of the bottoms of the flow meters; the liquid guide pipes oppositely extend into the inner side of the cabinet body, the bottom ends of the liquid guide pipes are correspondingly erected at top openings of beakers, transparent graduated scales are embedded and fixed in the middle of the front side of the solvent temporary storage barrel in the vertical direction, an isolation door plate is assembled on the front side of the cabinet body, and the left side of the isolation door plate is rotationally connected with the cabinet body through hinges; according to the ultrasonic dispersion cabinet, the sealing performance of the internal environment of the cabinet body is always kept in the ultrasonic dispersion process, the safety of the whole operation is ensured while the external environment pollution is reduced, in addition, the quantitative introduction operation of a dispersing agent and an organic solvent can be accurately controlled, and the efficiency of the carbon nano tube in the ultrasonic dispersion operation is improved.