97results about How to "Conducive to screening" patented technology

The invention discloses a plastic part injection molding excess material recycling mechanism, and belongs to the technical field of injection molding excess material recycling. The plastic part injection molding excess material recycling mechanism comprises a shell, a partition plate is vertically arranged in the shell, a discharging plate is horizontally connected between the shell and the partition plate, and a feeding groove plate is arranged on one side wall of the shell; a discharging frame and a movable door are arranged on the front side wall and the rear side wall of the shell correspondingly, the discharging frame corresponds to the discharging plate, a cleaning assembly located below the discharging plate is arranged in the shell, the cleaning assembly corresponds to the feeding groove plate, a transferring assembly is arranged on the side, away from the cleaning assembly, of the partition plate, and a smashing assembly located above the discharging plate is arranged on the inner side of the shell. And a screening assembly corresponding to the movable door is movably arranged between the crushing assembly and the discharging plate, a drying assembly matched with the transferring assembly and the screening assembly is arranged on the shell, and the device has the advantages of comprehensive cleaning, stable transferring, rapid crushing, reciprocating screening, double drying, reliable structure and easy and convenient operation.

The utility model discloses a dust falling structure for a concentrating machine, which relates to the field of mine machinery, and comprises a box body, a feed hopper is fixedly arranged at the right part of the upper end of the box body, and screening components are fixedly arranged at the bottom positions of the left part and the right part of the inner wall of the box body. According to the dust falling structure for the concentrating machine, ore particles of different sizes can be classified and collected through the screening assembly, the screening effect can be obvious due to the vibration effect of the screening plate, and the possibility that the three screening net areas are blocked can be reduced. And when the sieve plate vibrates, the plurality of shifting plates drive the ore materials to quickly move on the guide plate, so that the area between the lower part of the feeding hopper and the guide plate can be prevented from being blocked. Dust generated in the box body can be absorbed through the dust falling assembly, dust on the two filter plates can be scraped off through the cleaning assembly, and the dust enters the collecting box through the two inclined grooves.

The invention discloses a gas phase fingerprint spectrum of a transverse meridian mat. The gas phase fingerprint spectrum comprises a peak 1-5, and the retention time of the peak 1-5 is 16.89 + / -0.1 min, 17.36 + / -0.1 min, 17.89 + / -0.1 min, 19.37 + / -0.1 min and 19.6 + / -0.1 min in sequence; the construction method of the gas-phase fingerprint of the membranaceous beautyberry root comprises the following steps: crushing membranaceous beautyberry root to obtain membranaceous beautyberry root powder, adding water into the membranaceous beautyberry root powder, adding ethyl acetate, slightly boiling for 4 hours, naturally cooling to room temperature, standing for layering, and collecting an ethyl acetate layer as a test solution; carrying out liquid chromatography detection on the test solution; the method comprises the following steps: collecting 10 or more membranaceous beautyleaf root medicinal materials, carrying out detection operation according to the method, comparing obtained detection results, and selecting common characteristic peaks to obtain the gas-phase fingerprint spectrum of membranaceous beautyleaf root. The gas-phase fingerprint spectrum constructed by the method can be used for rapidly and accurately determining and identifying the membranaceous beautyberry root traditional Chinese medicinal material.

The invention discloses an MYH9-RD auxiliary screening system and an MYH9-RD auxiliary screening method based on blood cell morphology. Comprising an image acquisition module, an image detection module and an image analysis module, wherein the image acquisition module is responsible for acquiring a Wright stained peripheral blood image of a case to be screened; the image detection module is responsible for acquiring an independent image of each blood cell; the image analysis module is responsible for acquiring blood cell category information, leukocyte form information and platelet size information; the counting and processing module is responsible for generating an analysis result of a case to be screened; the related disease judgment module is responsible for generating an MYH9-RD screening result; and the result output module is responsible for outputting the screening result. According to the method, the morphology of the special cells of the peripheral blood is accurately identified and the number of the cells is accurately calculated through an artificial intelligence algorithm, so that the defects of incomplete visual capture and easy fatigue of human beings are overcome, misdiagnosis and missed diagnosis caused by personal errors or subjective differences are reduced, accurate identification of the cell morphology is realized, and the working efficiency is greatly improved; and early, rapid and efficient screening of the MYH9-RD is facilitated.

The present invention discloses an ultrasonic airflow screen, comprising a body, a feed tray, a screen, an ultrasonic mechanism, a negative pressure mechanism and a material recovery mechanism, wherein the upper end of the body is open and has a cavity inside, the feed tray is arranged at the upper end of the body, the feed tray is provided with a feed port and a blowing mechanism, the screen is arranged at the upper end of the feed tray, and a cover is also arranged on the top of the screen, the ultrasonic mechanism comprises an ultrasonic generator and an ultrasonic conduction ring connected to one end of the ultrasonic generator and arranged on the screen, the negative pressure mechanism comprises a vacuum fan arranged in the body cavity, the material recovery mechanism comprises a separator arranged outside the body, one end of the vacuum fan is connected to the upper end of the separator through a pipeline, and the other end is connected to the air outlet on the side wall of the body, one side of the separator is connected to the feed port through a pipeline, and a discharge port is arranged at the bottom of the separator. The present invention screens materials through ultrasonic waves, combines blowing with blowing blades and negative pressure feeding, can effectively avoid material agglomeration and can screen quickly.

The invention discloses a clindamycin phosphate processing hydrolysis device and method, and particularly relates to the technical field of injection preparation, the clindamycin phosphate processing hydrolysis device comprises a supporting frame, a hydrolysis mixing assembly is arranged on the supporting frame, the hydrolysis mixing assembly comprises a sliding seat arranged on the supporting frame, the sliding seat is in sliding connection with the supporting frame, and a hydrolysis cylinder is arranged at the bottom of the sliding seat. Clindamycin phosphate powder is prevented from being stacked together due to friction force, the amplitude plate and the heating plate can generate high-frequency amplitude, raw liquid clindamycin phosphate powder molecules can be fully mixed together easily, meanwhile, the temperature of the raw liquid clindamycin phosphate powder during evolutionary hydrolysis can be controlled through the heating plate, and therefore the raw liquid clindamycin phosphate powder can be obtained. Compressed airflow is conveyed into the aeration pipe, is aerated in the hydrolysis cylinder through the aeration pipe, and is stirred by matching with the rotation of the connecting disc, the filter screen plate, the first stirring blade and the second stirring blade, so that the caking of a stock solution and lindamycin phosphate powder can be effectively avoided, and the hydrolysis quality and effect are ensured.

The invention discloses gradient utilization and recovery equipment for new energy automobile batteries, relates to the field of battery recovery, and solves the problem that existing recovery equipment is difficult to normally convey solid disintegrating slag, the gradient utilization and recovery equipment comprises an equipment shell and a feeding cylinder fixedly mounted at the top of the equipment shell, and a crushing wheel set is mounted on the inner side of the feeding cylinder; a first storage box is fixedly installed on the inner wall of the bottom of the equipment shell, a second storage box is fixedly installed on the left side of the first storage box, and a water injection valve extending to the outer side of the equipment shell is fixedly installed on the outer side of the second storage box. The material screening mechanism is used for screening liquid raw materials and solid raw materials in the equipment shell, and the material screening mechanism is mounted on the inner side of the equipment shell; through the screening mechanism, the crushed battery raw materials can be received in batches, a solid material and a liquid material in the battery raw materials are separated in a rotary conveying mode, the solid raw material and the liquid raw material in the battery raw materials can be screened out conveniently, and therefore the rapid screening effect is achieved.

The utility model provides a device for producing deodorant cat litter, and relates to the field of cat litter. The device for producing the deodorization type cat litter comprises a box body, a mounting plate which is obliquely arranged downwards is hinged to the interior of the box body, and a screen is embedded into the mounting plate; a control assembly is arranged in the box body and located below the bottom of the mounting plate. The control assembly is used for driving the mounting plate to rotate up and down in a reciprocating mode with the hinged position as the center. And an air exhaust assembly is arranged in the box body and located above the screen, and the air exhaust assembly is used for exhausting dust in the box body. According to the device for producing the deodorization type cat litter, cat litter materials are screened in the closed box body, the situation that generated dust drifts away and pollutes the surrounding environment can be prevented, meanwhile, the dust can be pumped to the outer side of the box body under the action of the air exhaust assembly, and the situation that the production quality of the cat litter materials is affected due to the fact that the drifting dust is clamped in the cat litter materials is avoided; the use effect is good.

The invention discloses a natural spice flavor full-component recovery and extraction device and method, and belongs to the technical field of spice processing.The natural spice flavor full-component recovery and extraction device comprises a processing drying mechanism, a processing smashing mechanism, a smashing assisting mechanism and a recovery and extraction mechanism, the processing and drying mechanism is used for drying raw materials, the two crushing auxiliary mechanisms are symmetrically located on the two sides of the processing and crushing mechanism and are in sliding fit with the processing and crushing mechanism, and the recycling and extracting mechanism communicates with the processing and crushing mechanism. And a processing and conveying mechanism is arranged between the recovery and extraction mechanism and the processing and crushing mechanism. Natural spices can be crushed, so that permeation of supercritical fluid and extraction of flavor components are facilitated, the dried spices are crushed into proper particle sizes, the contact area between the spices and the supercritical fluid can be increased through small particles, and extraction of the flavor components is facilitated.

The utility model relates to the technical field of plastic feeding, and discloses a packaging bag plastic feeding device which comprises a bottom plate, a material guiding bin is fixedly arranged at the top of the bottom plate, the inner wall of the material guiding bin is of a hollow structure, a feeding pipe is fixedly connected to the top of the material guiding bin, a rotating assembly is fixedly arranged at one end of the material guiding bin, and a drying assembly is fixedly arranged at the top of the bottom plate. An impurity removal assembly is fixedly arranged on one side of the feeding pipe, a filter screen is detachably arranged in the feeding pipe, a discharging pipe is fixedly arranged at the bottom of the end, away from the rotating assembly, of the guiding bin, a control valve is fixedly arranged outside the discharging pipe, a weight sensor is fixedly arranged outside the control valve, and a control panel is fixedly installed at the top of the bottom plate. According to the plastic particle drying device, the drying assembly is arranged, the draught fan, the heating box, the ventilation holes, the anti-falling net and other structures are matched with one another, wet plastic particles can be dried conveniently, and therefore the uniform thickness of the plastic particles can be kept, and subsequent packaging bag machining is facilitated.

The utility model discloses a field reclamation stoning machine for agricultural planting, which relates to the technical field of agricultural equipment and comprises a plowing roller of a plowing rack, a sieve-shaking frame mounted on the plowing rack, a swing plate hinged to the arc-shaped transition bottom and a rolling part mounted on the sieve-shaking frame and used for transporting soil to the arc-shaped transition, a plurality of layers of screening rollers are rotationally connected to the swing plate, a stone receiving bag is installed on the ploughing rack, and the bottom of the stone receiving bag is located at the front end of the screening roller on the lowermost layer; according to the field reclamation stone removing machine, multiple layers of screening rollers with different diameter sizes are designed to screen stones and soil, on one hand, the stones and the soil can be stripped conveniently, soil can be reserved conveniently, on the other hand, multi-layer screening of the soil is facilitated, and the efficiency is improved. And when too many stones are collected, the pulling assembly pulls the swing plate to swing at first, soil separation is optimized, and the stones in the stone receiving bag are poured out.

The utility model discloses a transducer sealing installation structure of a vibrating screen, and relates to the technical field of vibrating screen equipment. The vibrating screen comprises a screen frame and a screen mesh, the screen mesh is installed on the inner side wall of the screen frame, a fixing assembly is installed on the outer side wall of the screen frame, and a sealing assembly is installed on the outer side wall of the screen mesh. A connecting column is installed on the outer side wall of a sealing rubber ring of the sealing assembly, a sealing ring is installed on the outer side wall of the connecting column, and a transducer is installed on the right side wall of the connecting column. A fixing block is installed on the upper side wall of a bearing block of the fixing assembly, a buffer spring is installed on the inner side wall of the bearing block, a protection pad is installed at the moving end of the buffer spring, and a fixing column is installed on the left side wall of the bearing block. The vibrating screen and the transducers are connected in a sealed mode through the sealing assembly, leakage is avoided, the transducers of different sizes can be fixed through the fixing assembly, and meanwhile a certain protection effect is achieved.

The utility model relates to the field of organic fertilizer production, in particular to organic fertilizer extrusion granulation equipment. The organic fertilizer extrusion granulation equipment comprises a supporting base, an extrusion granulation device and a discharging device are installed at the upper end of the supporting base, and a discharging opening facing the position of the discharging device is formed in the side portion of the extrusion granulation device; a feeding pipe which is obliquely arranged is mounted at the side part of the extrusion granulation device; a feeding hopper is mounted at one end, close to the lower position, of the feeding pipe; an inclined vibrating screen plate is installed in the discharging device, and at least two kinds of leakage holes with different hole diameters are formed in the vibrating screen plate. According to the organic fertilizer extrusion granulation equipment provided by the utility model, the vibrating screen plate arranged in the blanking device is inclined, so that particles with different sizes can be screened when all particle raw materials are loaded and unloaded on the vibrating screen plate, and the screening effect is better.

The utility model belongs to the technical field of solid granule screening, and particularly relates to medicine solid granule screening equipment which comprises a shell, a feeding hopper is fixedly installed at the top of the shell, a discharging opening communicated with a feeding opening of the shell is formed in the bottom of an inner cavity of the feeding hopper, and a sliding groove is formed in the position, located on one side of the discharging opening, in the feeding hopper. A sliding groove is formed in the outer shell, a baffle is installed in the sliding groove in a sliding mode, a plurality of first screening rods and an inclined plate are sequentially and fixedly installed in the outer shell and located under the discharging port from top to bottom, and a second fixing plate is fixedly installed in the outer shell and located at the bottom of the tail ends of the first screening rods. According to the solid granule screening device, the situation that excessive solid granules are added at a time to affect the screening effect is avoided, the whole device can screen out the solid granules of three sizes, the screening effect is better, and the solid granules of each size are more uniform in size.

The utility model discloses a separating device for tailing pulp, which comprises a separator, and a pulp inlet pipeline is mounted on the separator; a baffle is fixed to the surface of the separator, a primary treatment assembly is installed on the separator, the filtering effect is improved through vibration, a secondary treatment assembly is connected to the separator, particles and clear water are separated through centrifugal force, the overall separation efficiency is improved, and a conveying assembly is installed on the separator. According to the separation device for the tailing slurry, a vibration motor vibrates to drive a first sieve plate to vibrate, the first sieve plate drives a second sieve plate to vibrate through a buffer piece at the bottom, large particles in the introduced tailing slurry are screened through vibration of the second sieve plate, and the large particles are conveniently screened out; through vibration screening, the problem that due to the fact that particles block meshes of a copper mesh grate, cleaning needs to be conducted, and the efficiency is affected is solved, and the problem that the filtering efficiency is reduced due to the fact that the position of an existing copper mesh grate is fixed is solved.

The invention discloses a roller type screening device capable of automatically adjusting a roller gap. The lower ends of the plurality of rocker frames are detachably mounted at the lower parts in the two side walls at equal intervals respectively; the reset pieces are detachably installed at the two ends of the interior of each rocker frame respectively; the driving assembly is connected to the lower portion of each rocker frame, one end of the driving assembly penetrates through the side wall of the end to be connected with a driving chain wheel, and the other end of the driving assembly penetrates through the side wall of the end to be connected with a driven chain wheel; the screening roller is rotationally connected to the upper portion of each rocker frame; the driving chain ring is arranged on the driving chain wheel in a surrounding manner; the driven chain rings are arranged on the screening roller chain wheels and the driven chain wheels in a surrounding mode, wherein the screening roller chain wheels and the driven chain wheels are vertically opposite. The screening rollers are supported by the elastic rockers, the roller gap can be increased within a certain range, when bolts falling from the upstream are larger than the roller gap, the screening rollers are automatically bounced off, the gap is increased, the bolts fall down, then the screening rollers are reset, and the gap returns to the normal value.

The raw material screening machine for nut processing comprises a box body, a mounting frame and a screening plate, an inner cavity of the box body is fixedly connected with a set of connecting rods, the outer portions of the connecting rods are fixedly connected with a separating plate, one side, located below the separating plate, of the inner cavity of the box body is fixedly connected with a collecting frame, and the interior of the collecting frame is slidably connected with a dust collecting box. The top of the box body is fixedly connected with a feeding hopper, the top of the feeding hopper is fixedly connected with a feeding pipe, the feeding pipe extends into an inner cavity of the box body and is located above the right side of the separating plate, an air pump is arranged at the end, away from the feeding hopper, of the top of the box body, the output end of the air pump is fixedly connected with an air outlet pipe, and the other end of the air outlet pipe is fixedly connected with an exhaust square pipe. And the exhaust square pipe is arranged on the inner wall of the box body. Through mutual cooperation of the air pump, the exhaust square pipe and the separation plate, sundries in nut raw materials can be removed, the sundries and nuts are prevented from being packaged together, the quality of the screened nuts is improved, repeated manual picking is not needed, the workload of workers is relieved, and the input cost is reduced.

The invention discloses a touch screen detection device for smartwatch production, and relates to the field of smartwatch touch screen detection.The touch screen detection device comprises a fixed supporting frame, a side edge supporting frame A, a sleeving guide rail, a detection plate body, a side edge bending connecting plate, a transverse expansion piece A and a transverse expansion piece B. One side of the top of the fixed supporting frame is fixedly connected with a circuit control box; the top of the fixed supporting frame is fixedly connected with a touch screen detector, and the top surface of the fixed supporting frame is fixedly connected with a touch screen fixer A, a touch screen fixer B, a touch screen fixer C and a touch screen fixer D. In the detection process, the intelligent watch touch screen can be well fixed; the detection data of the touch screen of the smart watch can be more accurate, refined outer screen strength detection can be realized, and the overall detection has the characteristics of being more accurate, faster and better in effect.

The utility model discloses a sieve shaker for processing traditional Chinese medicinal materials, which belongs to the technical field of medicinal material processing devices and comprises a main base, a plurality of support springs are mounted on the top surface of the main base, a movable seat is fixedly connected among one ends of the support springs, and a plurality of vibration motors are mounted on the top surface of the movable seat; the vibrating screen assembly comprises a middle mounting frame, four groups of base components, a vibrating screen seat and a plurality of re-filtering nets, the middle mounting frame is fixedly connected to the top surface of the movable seat, each of the four groups of base components comprises a rotating shaft seat, a placement seat and an insertion positioning rod, and the rotating shaft seats are rotationally connected to the top surface of the middle mounting frame. According to the traditional Chinese medicinal material processing vibration screening machine, raw materials are preliminarily screened through the linear screen assembly, the screened materials can fall into the vibration screening base, the movable motor drives the vibration screening base to move circumferentially, vibration screening operation is completed, the vibration screening efficiency is improved, meanwhile, the screening effect is good, and production operation is facilitated.

The present invention discloses a fatty acid value rapid detection instrument, including a main shell, a dark box and a control box. One end of the main shell is provided with a mounting port corresponding to the dark box, a plurality of color sensors are fixedly inserted on the inner wall of the dark box, the control box is fixedly connected to the inner wall of the main shell, and the bottom of the main shell is fixedly connected with a base plate; a touch screen and an indicator light are fixedly embedded on the top of the main shell, a control switch and a data connector are fixedly embedded on the outer wall of the main shell, and a controller, a memory, a power supply, a signal receiver and a signal transmitter are arranged in the control box. The instrument of the present invention has a built-in large-capacity battery, which can be used in standby mode for 6 hours. It also has a data storage function and can export data to a computer. It is easy to carry as a whole and can be used for outdoor experiments and offices, solving the problem of no fatty acid value judgment at the purchase site. At present, it can be used for rapid detection of fatty acid values ​​of corn, wheat and rice, and is convenient for rapid screening of old grain and spoiled grain.

The invention discloses a high-efficiency combined ore screening machine, comprising a frame, an upper screening device is installed on the frame, a lower screening device is installed on the frame and receives the screened material of the upper screening device below the upper screening device, the upper screening device and the lower screening device are both inclined and have the same inclination direction, the head end of the lower screening device and the head end of the upper screening device are staggered front and back, a material guiding device is inclined between the head end of the upper screening device and the head end of the lower screening device, and a discharging device is respectively arranged at the end of the upper screening device, the end of the lower screening device and the bottom of the lower screening device; the device comprises two screening devices connected up and down, has a compact structure and occupies a small space, and the two screening devices are staggered, so that the effective screening path of the screen becomes longer and the screening effect is better; and the two screening devices vibrate separately, and their respective frequencies are adjustable, so that the screening effect is good, and at the same time, the motor loss is small and the noise is low.

The utility model provides a pet food processing and drying device, and belongs to the technical field of pet food processing. Comprising a drying box and a top cover arranged at the top of the drying box, the top cover is provided with a feeding channel, and the drying device further comprises a discharging part A, a filter screen, a discharging part B and a box body auxiliary swinging part; the discharging part A is arranged on the drying box and can movably divide an inner cavity of the drying box into two parts; the filter screen is arranged at the inner bottom of the drying box; a discharging port used for discharging screened food is formed in the bottom of the side wall of the drying box, and the discharging piece B is arranged on the outer wall of the drying box and can movably block the discharging port. And the box body auxiliary swinging piece is arranged at the bottom of the drying box and can promote food which is dried and screened in the drying box to be turned over. The dog food drying and screening processes are combined, and the production efficiency of the dog food is improved.

The invention discloses a urine metabolism small molecule combination, the urine metabolism small molecule combination is 2, 3-pinanediol, on the other hand, the invention provides application of the urine metabolism small molecule combination in specific disease detection, and particularly relates to application of 2, 3-pinanediol as a biomarker in early lung cancer detection. Compared with the prior art, the urine metabolism micromolecule composition for early detection of lung cancer and the application thereof have the advantages that the urine metabolism micromolecule composition for early detection of lung cancer can be used for detecting the human body function state based on urine metabolites.

The utility model discloses corn flour screening equipment which comprises a machine body, a partition plate is fixedly installed in the machine body, a discharging pipe is fixedly installed at the bottom of the partition plate, an electromagnetic valve is fixedly installed on the discharging pipe, a motor is fixedly installed on one side of the machine body, a feeding pipe is fixedly installed on the other side of the machine body, and a sealing cover covers one end of the feeding pipe. A second rotating shaft is fixedly mounted on an output shaft of the motor, the second rotating shaft is inserted into the machine body, a plurality of stirring blades are fixedly mounted on the outer side of the second rotating shaft, an electric heating plate is fixedly mounted on the rear side in the machine body, and two sieve plates are arranged in the machine body and located below the discharging pipe; the aperture of the upper sieve plate is larger than that of the lower sieve plate; the stirring blades are driven by the motor to stir corn flour to be matched with the electric heating plate to dry the corn flour, and therefore the problems that due to the fact that the corn flour is wet, the screening effect is poor, and the screening efficiency is low are solved.

The invention relates to the technical field of immunodetection, in particular to an anti-human phosphorylated Tau181 rabbit monoclonal antibody, an anti-human phosphorylated Tau217 rabbit monoclonal antibody, a preparation method and combined detection application, provides two anti-human phosphorylated Tau rabbit monoclonal antibodies, and provides preparation, application and a combined application method of the two antibodies. The antibody has good accuracy and sensitivity in detection of a phosphorylated Tau marker, can be applied to sandwich ELISA, indirect ELISA, immunochromatography, chemiluminescence or flow detection fields and the like, and is beneficial to discovery and screening of patients suffering from early Alzheimer's disease; the invention provides an antibody pair formed by applying the two antibodies to immunodetection and jointly applying the two antibodies to immunodetection, the advantages of high accuracy, high sensitivity and low background are shown in detection, the G122 (p-Tau217)-G69 (p-Tau181) antibody pair can detect two indexes of Tau181 and Tau217 at a time, and compared with a common two-step detection method, the G122 (p-Tau217)-G69 (p-Tau181) antibody pair is quicker and more convenient, and the accuracy is guaranteed.

The utility model provides a sorting type air bellow which comprises an air bellow body used for sorting materials, a feeding port is formed in the top of the air bellow body, a first discharging port is formed in the bottom of the air bellow body, and a second discharging port is formed in the side face of the air bellow body. The feeding pipe is communicated with a feeding hole in the top of the air bellow main body; wherein the top of the air bellow main body is a winnowing part, the inner wall of the winnowing part is fixedly connected with a feeding channel which spirally extends downwards along the inner wall, the second discharging port is formed in the passing position of the feeding channel, and a second discharging pipe is in butt joint with the position of the second discharging port; the second discharging pipe and the feeding channel are formed on one side of the winnowing part in a tangent mode. The structure of the mechanism is simple, the screening effect is good in actual use, the structure of the mechanism is simple, and in the combined use process of all the assemblies, the number of movable assemblies of equipment is small, and durability is good.

The embodiment of the invention provides a single-channel electroencephalogram sleep analysis method and related equipment, and belongs to the technical field of electroencephalogram signal processing and sleep health monitoring. The method comprises the following steps: carrying out preprocessing and time sequence enhancement on a single-channel electroencephalogram signal; extracting local and global features by using a double-branch feature encoder; feature distribution alignment between a source domain and a target domain is realized through a double-contrast adversarial learning module in combination with cross-view time sequence contrast learning and conditional adversarial alignment; dynamically adjusting a target domain sample weight based on information gain through a learnable reweighting module so as to correct label distribution offset; and finally, high-precision sleep staging or OSAHS event detection is realized by utilizing a classifier. According to the method, the generalization ability and robustness of the model in a cross-subject scene are remarkably improved, accurate analysis can be achieved only through single-channel electroencephalogram signals, the hardware cost and the use threshold are reduced, and the method is suitable for scenes such as family sleep monitoring and telemedicine screening.

The utility model discloses a seed screening and cleaning device, and relates to the technical field of seed screening. The device comprises a bottom plate, two mounting plates are arranged at the top end of the bottom plate, and a top plate is arranged at the top ends of the mounting plates. The driving component can drive the first filter cartridge to rotate, so that seeds can be driven to continuously turn over and be filtered, impurities such as dust mixed in the seeds can be raised, the dust can be sucked away and filtered under the action of the dust suction component, and the seed screening efficiency is improved. Meanwhile, the dust concentration detector can detect the dust concentration in the air in the whole filtering process, when the dust concentration detector detects that the dust concentration reaches a set value, a signal can be sent to the controller, and the controller can control the voice broadcaster to broadcast to prompt that collection of dust impurities is completed; and then the filtered seeds can be taken out, the filtering effect on the seeds can be guaranteed, the overall occupied space is small, and use is convenient.

The efficient plastic raw material screening device comprises a box body, a fixed plate and filter plates, the bottoms of the two filter plates are each provided with a pair of connecting columns, the bottoms of the connecting columns are fixedly connected with a movable plate, tooth grooves are formed in the movable plate, and sliding grooves are formed in the positions, located on the two sides of the tooth grooves, of the movable plate; the box body is fixedly connected with a group of fixing plates below the two filter plates, first motors are arranged at the tops of the two groups of fixing plates, the output ends of the first motors are connected with gears through rotating shafts, the gears are meshed with the tooth grooves, connecting blocks are symmetrically arranged at the tops of the fixing plates and located on the two sides of the first motors, and pulleys are arranged at the tops of the connecting blocks; the pulleys are slidably connected into the sliding grooves. Plastic raw materials are injected into the box body, two first motors are started to enable gears to rotate, then a movable plate drives a connecting column to enable a filter plate to move left and right, the plastic raw materials of different specifications can fall on different filter plates, the whole plastic raw material screening process is conducted in the box body through the device, and the screening effect can be better.

The invention discloses an enterovirus and EV-A71 typing kit based on an HNB-LAMP (Hepatitis B Narrow Band Loop-Mediated Isothermal Amplification) coupled CRISPR / Cas12a technology and a use method of the kit. According to the invention, the difficulty of simultaneous detection of enterovirus and EV-A71 typing by a traditional detection technology is overcome, an HNB-LAMP coupled CRISPR / Cas12a technology is successfully developed on the premise of not reducing the sensitivity and accuracy of the detection method, simultaneous detection of two targets of enterovirus and EV-A71 typing can be completed within 50 min, the sensitivity of enterovirus is 101 copies / [mu] L, the detection sensitivity of EV-A71 is 100 copies / [mu] L, the detection sensitivity of EV-A71 is 100 copies / [mu] L, the detection sensitivity of EV-A71 is 100 copies / [mu] L, the detection sensitivity of EV-A71 is 100 copies / [mu] L, and the detection sensitivity of EV-A71 is 100 copies / [mu] L. The comprehensive accuracy is 95.7%, and the method has the characteristics of rapidness, high sensitivity and high accuracy.