114results about How to "Increase collection rate" patented technology

The invention relates to the field of solar cells, particularly provides a heterojunction cell, and aims to solve the problem that the passivation effect of the side face of an existing heterojunction cell is poor. In order to achieve the purpose, the heterojunction cell disclosed by the invention comprises a substrate, a first passivation layer and a second passivation layer, the substrate is provided with a first surface, a second surface and a side surface adjacent to the first surface and the second surface; the first passivation layer is located on the first surface of the substrate and is plated around the side surface and the second surface of the substrate; the second passivation layer is located on the second surface of the substrate. The first passivation layer which is plated to the side surface and the second surface in a winding manner can passivate the edge composite area of the substrate, so that the possibility that carriers are compounded in the edge composite area is reduced, the probability that the carriers moving to the edge composite area are collected is improved, and the efficiency of the cell is improved.

The invention discloses a method for planning a data acquisition path of an energy-aware unmanned aerial vehicle. The method comprises the following steps: 1) constructing a system model; 2) unmanned aerial vehicle flight constraint limitation and optimization problem generation; 3) constructing a reward function of the unmanned aerial vehicle; and 4) training the neural network by adopting a deep reinforcement learning DDQN algorithm with a priority experience playback mechanism, and finally obtaining a group of parameters capable of maximizing accumulated rewards by the neural network, thereby obtaining a data collection path for maximizing the data collection rate and the safe landing rate of the unmanned aerial vehicle in a given environment. According to the method, the unmanned aerial vehicle can find a data collection path with the maximum data collection rate and safe landing rate in a given environment.

The invention discloses a continuous automatic micro-nano metal powder production device and method. The continuous automatic micro-nano metal powder production device comprises an ultrasonic atomization system, a high-temperature pyrolysis system, a product collection system and a tail gas treatment system which are sequentially connected. The product collection system comprises a physical separation device and an electrostatic-magnetic field synergistic adsorption device; the electrostatic-magnetic field synergistic adsorption device comprises an electrostatic collection device and a magnetic field adsorption device arranged on the outer side of the electrostatic collection device. The electrostatic collection device comprises a positive electrode electric field arrangement mechanism and a negative electrode electric field arrangement mechanism, and the positive electrode electric field arrangement mechanism is arranged in a cylindrical inner cavity of the negative electrode electric field arrangement mechanism; the positive electric field arrangement mechanism comprises a trunk and a plurality of positive electrode plates distributed in the axial direction of the trunk. Metal powder is collected in a physical separation, high-voltage static electricity and magnetic field cooperation mode, the problems that nanoscale and micron-sized fine powder is prone to leakage and difficult to collect are effectively solved, the powder collection rate is increased, and effective recycling of products is ensured.

The invention relates to a carbon and nitrogen dual-recovery method and device for collecting grease and phycocyanin in an algae-bacterium symbiotic sewage treatment system, and the method comprises the following steps: 1, carrying out mud-water separation on phycomycete suspension taken out from the sewage treatment system to obtain phycomycete biomass precipitate; 2, extracting grease in the precipitate in the first step by adopting a chloroform-methanol solution, and collecting the grease to recover carbon; and step 3, adding a hydrochloric acid solution into the biomass extracted in the step 2, heating and stirring, and collecting phycocyanin in supernate to recover nitrogen. According to the method disclosed by the invention, the mode of firstly collecting the grease to extract the carbon and then collecting the phycocyanin to extract the nitrogen is adopted, so that grease loss caused in the process of collecting the phycocyanin is avoided, the collection rate of the grease is improved, and dual recovery of the carbon and the nitrogen can be realized.

A leakage-proof vibration harvester comprises a crawler-type walking mechanism, a fruit output mechanism, a chassis which is installed at the front end of the fruit output mechanism and provided with a U-shaped opening, and a clamping jaw vibration assembly which can clamp a tree trunk and vibrate, and the clamping jaw vibration assembly is hung on a machine frame, extending forwards, of the fruit output mechanism through a spring. The left half umbrella assembly is installed on the left side of the chassis and is in seamless connection with the left side of the fruit output mechanism, the right half umbrella assembly is installed on the right side of the chassis and is in seamless connection with the right side of the fruit output mechanism, and after the right half umbrella assembly and the left half umbrella assembly are opened, the ends of the right half umbrella assembly and the left half umbrella assembly intersect to form a closed collecting umbrella; the base plate closes the U-shaped opening to surround the trunk along with opening of the right half umbrella assembly and the left half umbrella assembly, or opens the U-shaped opening along with folding of the right half umbrella assembly and the left half umbrella assembly. The fruit collecting efficiency is improved, the harvesting efficiency is improved, and damage to trunks is reduced. The invention further provides a harvesting method of the leakage-proof vibration harvester.

The invention discloses a crushing mechanism in a papermaking beater, which belongs to the technical field of papermaking equipment and comprises an equipment box, a crushing box is arranged at the top of the equipment box, crushing rollers are arranged on two sides in the crushing box, a grinding box is arranged in the equipment box, a grinding disc is arranged in the grinding box, and a driving motor is arranged at the top of the equipment box. A transmission shaft is arranged at the output shaft end of the driving motor, a filter plate is arranged at the bottom end of the interior of the equipment box, an inclined cutter plate is arranged at the bottom end of the transmission shaft, a first scraper is arranged on one side of the top of a mesh of the filter plate, and a second scraper is arranged below the inclined cutter plate. The raw materials are preliminarily crushed, then the preliminarily crushed raw materials are ground by the grinding disc, and finally, the ground raw materials are sheared through the second scraper at the bottommost layer and the first scraper arranged on one side of the meshes of the filter plate, so that the ground raw materials are sheared into short fibers with the size of the composite meshes, the consistency of the sizes of the raw materials is guaranteed, and the rate of finished products of the fibers is improved.

The invention provides MOCVD (Metal Organic Chemical Vapor Deposition) equipment which comprises a reaction cavity, a planetary plate for bearing a substrate is arranged in the reaction cavity, a plurality of rotating units are arranged on the planetary plate, and at least one mark is arranged on the edge of each rotating unit; the MOCVD equipment further comprises an image acquisition device used for acquiring an image of the rotating unit; the view field range of the image acquisition device at least covers part of the motion trail of the mark; the image acquisition parameter adjusting module is used for adjusting working parameters of the image acquisition device; and the image processing module is configured to calculate the actual rotation speed of the corresponding rotating unit based on the acquired marked image. The invention further provides a satellite disc rotating speed measuring method. According to the invention, the actual rotation speed of the satellite disc can be obtained, and the actual rotation speed can be used for accurately adjusting the air flow for driving the satellite disc to rotate, so that the surface temperature of the substrate meets the process requirement, and the yield of substrate processing is improved.

The invention relates to the technical field of crushing devices, and discloses a special neodymium iron boron crushing device which comprises a shell, a conveying table is mounted on the inner wall of the shell, and a dustproof shell is fixedly connected to the left side of the shell; according to the neodymium-iron-boron crushing device, when neodymium-iron-boron crushing work is started, neodymium-iron-boron is put into a feeding opening in the top of the shell, then the neodymium-iron-boron is crushed through a crushing roller, the crushed neodymium-iron-boron falls to the top of a second sieve plate, the neodymium-iron-boron falling to the top of a first sieve plate can be shaken and screened, and the neodymium-iron-boron crushing efficiency is improved. According to the neodymium iron boron crushing device, neodymium iron boron which is not crushed thoroughly is conveyed out through the conveying table and then thrown into the device again to be crushed, the neodymium iron boron which is crushed to be qualified falls down through holes of the sieve plate I, and meanwhile, the neodymium iron boron can be screened more finely, so that during subsequent secondary crushing, the neodymium iron boron can be crushed more thoroughly.

The invention provides a preparation method of a solar cell and the solar cell, and the method comprises the steps: firstly, providing an initial wafer; processing the initial wafer by adopting a laser process to obtain a substrate layer of which the first surface is provided with a plurality of groove regions and non-groove regions; a first tunneling dielectric layer is formed on the first surface, and the thickness of the first tunneling dielectric layer located in the groove area is larger than that of the first tunneling dielectric layer located in the non-groove area; then, an amorphous silicon layer is formed on the side, away from the substrate layer, of the first tunneling dielectric layer, and the thickness of the amorphous silicon layer located in the groove area is larger than that of the amorphous silicon layer located in the non-groove area; carrying out doping treatment on the amorphous silicon layer to obtain a doped layer; and finally, forming a first electrode on a part of the surface of the groove region. The preparation method of the solar cell can improve the performance of the solar cell.

The invention provides an iron ore deep hole downward fan-shaped hole arrangement mining method which comprises the following steps: step 1, performing stope arrangement, arranging an upper vein-following transportation roadway and a rock drilling chamber at the upper part of a stope for ore transportation and drilling operation, and arranging a lower vein-following transportation roadway, an ore removal gate roadway and an ore loading access road at the lower part of the stope for ore transportation and loading; 2, cutting transverse roadways and cutting wells, correspondingly arranging bottom and top cutting transverse roadways at the center or the end part of the stope to form a blasting free surface, digging the cutting wells in the hanging wall of the ore body, and penetrating through the bottom and top cutting transverse roadways to provide a space for blasting operation; and thirdly, fan-shaped deep holes are arranged, and the downward fan-shaped holes of the deep holes are formed in the chamber to replace original vertical hole arrangement mining, so that the method can better adapt to the geological conditions, the mining efficiency is improved, a larger ore body area can be covered, the ore collection rate is improved, and the mining cost is reduced.

The utility model discloses a solar panel orientation adjusting device, which comprises a group of sun tracking driving components and a plurality of groups of concrete platforms which are arranged on the ground, one end of the top of each concrete platform is hinged with a mounting column, and the top end of each mounting column is hinged with a solar panel main body. A first arc-shaped rack is mounted at one end, close to the mounting column, of the solar panel main body; the output end of the sun tracking driving assembly is connected with a mounting shaft, and first gears are evenly mounted on the outer side of the mounting shaft. According to the utility model, through the sliding connection of the second arc-shaped rack and the arc-shaped guide cylinder and the hinge joint of the mounting column and the concrete platform, the warp direction of the solar panel main body can be adjusted through the rotation of the mounting column, and through the hinge joint of the second arc-shaped rack and the mounting column with the solar panel main body, the weft direction of the solar panel main body can be further adjusted. Therefore, the collection rate of the solar energy can be increased by adjusting to fully face the sunlight.

The invention relates to the technical field of chain skimming machines, and discloses a chain skimming machine for a rectangular pool, the chain skimming machine comprises a conveying mechanism and a skimming mechanism, the conveying mechanism is arranged on a sedimentation tank, the skimming mechanism is arranged on the conveying mechanism, the skimming mechanism comprises a conveying frame and a skimming plate, the conveying frame comprises a cross beam and a guide rod, and the skimming plate comprises a main plate and an auxiliary plate. The cross beam is horizontally arranged on the conveying mechanism, the guide rods are arranged at the ends of the cross beam respectively and are in sliding fit with the cross beam, and driving units for driving the guide rods to move are further arranged between the guide rods and the cross beam; the main plate is horizontally arranged on the cross beam, the auxiliary plate is arranged on the guide rod, the moving area of the auxiliary plate and the moving area of the main plate partially coincide, and the auxiliary plate is rotationally hinged to the guide rod and rotates around the vertical plane along with fluctuation of the inner wall of the sedimentation tank through the swing unit. When the gap between the skimming plate and the tank wall is too large, the auxiliary plate is close to the tank wall in a self-adaptive manner to make up the gap, so that the effect of cleaning the scum is achieved.

The utility model discloses a kind of tail cutting devices of plastic bottle processing, belong to tail cutting device technical field, it includes pedestal, the rear of the pedestal upper end face is equipped with mobile tail cutting structure, the center of the pedestal upper end face is equipped with clamping structure on two sides, the center of the pedestal upper end face is equipped with dust extraction structure in front, in addition, the utility model, by the combination of multiple buffer columns and compression springs of rectangular arrangement, can realize multiple point elastic contact according to the actual shape of plastic bottle, avoid the damage of bottle body caused by local stress concentration, the sliding fit design of sliding plate and clamping plate, so that rubber clamping pad can automatically adjust contact angle with bottle body contour, always keep maximum contact area in clamping process, solve the problem that fixed clamping surface is unstable to special-shaped bottle body clamping, the elastic coefficient of compression spring is optimized design, enough clamping force can be provided to ensure that bottle body does not shake when cutting, and overload protection can be realized through excessive compression when sudden external force, reduce equipment failure rate.

The present invention discloses a LoRaWAN network polling scheduling method and system. The present invention divides the frequency band range of the LoRaWAN uplink channel into units of gateways, and binds the terminal address to the gateway in the network server; before the terminal is connected to the network, the network access multicast message is monitored at the agreed network access multicast frequency point, and the network access multicast message is responded to and listened to when the network access multicast message contains its own address; the network server sends a multicast message through the gateway, and before each round of sending the service polling multicast message, the terminal that did not reply in the last polling and the newly added terminal are screened out, and the network access multicast message is sent to these terminals; after receiving the service polling multicast message, the terminal reports data only when the message contains its own address, and when reporting, the working frequency in the frequency point group is determined according to the order of the terminal's own address in the address list. The present invention can solve the problems of packet loss, conflict, and collision in the LoRaWAN wireless network, and fully improve the utilization rate of the wireless channel.

The utility model discloses a color material dispersion testing machine, wherein the color material dispersion testing machine comprises a base, an extrusion device, a heating device and a collecting device. The extrusion device is arranged on the base. The extrusion device comprises a feeding hopper, a driving assembly and an extrusion pipe. The feeding hopper is located at the input end of the extrusion pipe and is used for inputting color material. The driving assembly is used for dispersing color material and outputting the color material through the output end of the extrusion pipe. The heating device is arranged at the output end of the extrusion pipe. The heating device is used for melting the color material. The collecting device is detachably connected to the output end of the heating device. The collecting device comprises a fan and a color developing strip. The fan is used for blowing the color material from the heating device to the color developing strip to present color development. The color material does not need to be manually transferred from dispersion to collection of color, which has high automation degree. The problems of loss, pollution and state change caused by manual transfer of the color material are avoided. The collection rate of color material dispersion is improved, and the accuracy and reliability of the test are improved.

The utility model relates to dust removal board technical field, and disclose a kind of fixed structure of dust removal board for flue gas purification, including filter box, vibration plate is movably installed in the inside of filter box, installation component is fixedly installed in vibration plate bottom, the installation component contains the limiting frame fixedly installed in vibration plate bottom.The utility model compares with traditional fixed structure, the fixed structure is through positioning block one, positioning column and spring, it is convenient to limit and fix dust removal board, at the same time, through vibration motor drives dust removal board whole to vibrate, through dust removal board vibration design driven by vibration motor, effectively improve the dust removal efficiency, through the waste gas particle of adhering and shaking off, prevent accumulation and enhance particle collision, improve the capture probability, at the same time, vibration promotes particle more easily to fall off to filter box bottom, optimization collection process, reduce escape, improve collection rate.

The invention relates to the technical field of solar cells, and provides a back contact cell, a cell assembly and a photovoltaic system, the back surface of a silicon wafer of the back contact cell is provided with a first region and a second region which are alternately arranged at intervals, the first region and the second region are separated by a spacer region, and a first polarity doping layer is stacked in the first region. The second polarity doping layer is arranged in the second region in a stacked mode, and the second polarity doping layer and the first polarity doping layer are separated through a spacer region. A plurality of first isolated doping parts are arranged in the spacer region, and the first isolated doping parts are not in contact with the first polarity doping layer and the second polarity doping layer. Therefore, the plurality of independent first isolated doping parts are arranged in the spacer region, and the first isolated doping parts can form floating junction passivation in the spacer region, so that the passivation effect of the spacer region can be improved, the collection rate of carriers can be improved, and the efficiency of the back contact battery is improved.

The utility model relates to a solid-liquid raw material separating and filtering device which comprises a tank body, a blowing assembly, a vacuum valve, a pressure release valve and a filtering assembly, the filtering assembly comprises a filtering bag and is installed in the tank body, an upper sealing cover is installed at the top end of the tank body, a discharging sealing cover is installed on the bottom end face of the tank body, and the vacuum valve and the pressure release valve are installed on the upper sealing cover. A feeding valve is further installed on the upper sealing cover, a powder discharging valve and a liquid discharging valve are installed on the discharging sealing cover, the feeding valve and the powder discharging valve are both communicated with the inner space of the filtering bag, the liquid discharging valve is communicated with the filtering liquid space outside the filtering assembly, and the blowing assembly comprises an air inlet pipe and a blowing pipe. Powder filtered by the device is located in the filtering assembly, liquid is located outside the filtering assembly, the powder can be prevented from being attached to the inner wall of the tank body, the device is provided with the blowing assembly for blowing the filtering bag, the filtering efficiency can not be affected in long-time use, and the device further has the advantages of being small in damage degree to powder particles and low in loss in the separating and filtering process.

The utility model relates to the technical field of laser cladding, and discloses an ultra-high-speed laser cladding device which comprises a clamping machine tool, a driving arm and a laser head, a supporting frame corresponding to the laser head is installed on one side of the driving arm, a collecting box is installed on the supporting frame, and a screening unit used for screening cladding powder is installed in the collecting box. According to the laser cladding device, the supporting frame is installed on one side of the driving arm, the collecting box is placed on the supporting frame, when the driving arm drives the laser head to carry out cladding on a workpiece, the driving arm drives the collecting box to move through the supporting frame at the same time, the collecting box is located under the laser head, and cladding powder falling off from the workpiece can be collected by the collecting box; and waste is reduced, so that the production cost is reduced, and the practicability is improved.

The portable mayfly naiad observation collector comprises a collecting cylinder, a mounting plate and a cover cylinder, an annular interlayer with an upward opening is arranged in the side wall of the collecting barrel; a plurality of guide ropes are arranged at the bottom of the interlayer around the axis of the collecting barrel; the ends, away from the collecting cylinder, of the multiple guide ropes are connected to the edge of one side of the mounting plate, and the multiple guide ropes are parallel to one another. A sliding hole is formed in the mounting plate, and a hollow sleeve penetrating through the sliding hole is arranged at the position, at the sliding hole, of the other side of the mounting plate; an opening of the cover cylinder faces downwards, and the cover cylinder is located between the collecting cylinder and the mounting plate and arranged in the annular interlayer in a sliding mode; a guide hole is formed in the side wall of the cover cylinder in the axis direction of the cover cylinder. The guide rope penetrates through the guide hole; one end, far away from the opening, of the cover cylinder is provided with a plurality of air holes and a traction rope; the pulling rope is arranged in the sleeve in a sliding mode, and one end of the pulling rope penetrates out of the sleeve. The problems that a traditional collecting tool is complex in structure or needs a matched tool and is inconvenient to carry in field operation are solved.

According to the attitude control mechanism for collecting the multiple metal nodules and the control method of the attitude control mechanism, the attitude control mechanism is composed of an attitude measuring mechanism and a four-connecting-rod control mechanism, and the attitude measuring mechanism is fixed to a main frame of a mining system in a cantilever mode; the four-connecting-rod control mechanism is hinged to the hydraulic collecting device and a main frame of the mining system. According to the attitude control method, the attitude of the collecting device is measured in real time through the attitude measuring mechanism and compared with the initial attitude, the stroke of stretching needed by each control oil cylinder in the four-connecting-rod control mechanism when the corresponding attitude is adjusted is calculated through an algorithm, and then real-time adjustment is conducted through hydraulic pressure; the problem of attitude offset of the acquisition device caused by changes of submarine topography and geological conditions is solved. According to the control mechanism and method, it can be guaranteed that the ore collection rate is always at a high level, and therefore the reliability and stability of operation of a collection system are improved.

The present invention belongs to the technical field of oil processing, and specifically is an oil-residue separation device for oil processing, comprising a filter box and a conical liquid guide cover installed on the upper end surface of the filter box, and a tea residue recovery cover is fixedly connected to one side of the conical liquid guide cover, a tea oil filter cartridge is installed in the inner cavity of the conical liquid guide cover, and the tea oil filter cartridge is plugged and connected with one side of the tea residue recovery cover, the lower end of the tea residue recovery cover is fixedly connected with a material guide cover, the inner cavity of the tea oil filter cartridge is rotatably connected with a conveying auger, a feeding port is provided on one side of the upper end of the tea oil filter cartridge, and a funnel is fixedly connected at the feeding port on one side of the upper end of the tea oil filter cartridge, and a grease filter assembly is plugged into one end of the filter box; the problem is that a small amount of black tea seeds will remain in the grease squeezed out by the filter press, and if the grease is not filtered for the second time, black and fine oil residues will remain in the grease, which will not only affect the purity of the grease, but also affect the appearance of the grease and cause quality problems.

The utility model provides an electroplating automation line air curtain type fan cover which comprises a first fan cover and a second fan cover, the first fan cover and the second fan cover are parallel to each other and are symmetrically arranged, the bottom of the first fan cover is fixedly installed on one side groove edge of an electroplating bath, and the bottom of the second fan cover is fixedly installed on the other side groove edge of the electroplating bath. The first fan cover and the second fan cover have the same structure; the air curtain type fan cover for the automatic electroplating line can adapt to waste gas treatment of electroplating baths with different widths by adjusting the frequency converter, is wide in application range, can effectively prevent waste gas in the electroplating baths from overflowing, and can quickly collect the waste gas, so that the waste gas can be treated in a centralized manner; the operation effect of the device can fully meet the clean production standard of the electroplating industry, the workshop environment is purified, and the waste gas collection rate is improved.

The invention belongs to the technical field of feeding devices, and discloses a screening type feeding device which comprises a device body, a feeding port is formed in the top end of the device body, a discharging port is formed in one side of the bottom end of the device body, and a screening assembly and a negative pressure assembly are arranged in the device body. Firstly, the motor and the negative pressure fan are started, then raw materials are fed into the device body from the feeding port, the raw materials fall at the top end of the screen, powder flying in the raw material feeding process and the screening process is sucked in from the material suction pipe, guided into the material guide groove through the connecting pipe and the negative pressure pipe and finally discharged into the device body again to be mixed with the screened raw materials, and the raw materials are screened. According to the feeding and screening device for the bread, flying powder is sucked in, dust generated in the raw material adding and screening process can be reduced, the cleanliness of the working environment is improved, the health of surrounding workers is guaranteed, and the quality of the bread and the food safety are indirectly improved.

This invention discloses a low-temperature vacuum distillation apparatus for synthesizing tert-butyl ester compounds, comprising: a distillate tank, made of transparent borosilicate glass, for holding the tert-butyl ester compound solution to be distilled. Its transparency allows operators to easily observe the state and level of the internal solution and monitor the distillation process. The invention also includes a vacuum pump that precisely adjusts the system pressure according to distillation requirements, achieving vacuum distillation. At lower pressures, the boiling point of the tert-butyl ester compounds decreases, allowing distillation at lower temperatures and avoiding the degradation of compound activity by high temperatures. This is particularly suitable for purifying heat-sensitive tert-butyl ester compounds, ensuring product quality and performance. A temperature sensor is installed in the water bath heating tank to monitor the water bath temperature in real time and feed the signal back to the control system of the heating panel for precise temperature control.

The utility model discloses a kind of edge corner processing structures for cow leather dancing shoes upper leather processing, including roller conveyor, processing support is installed on the roller conveyor, lifting support is installed on the inboard of the roller conveyor, lifting feeding cutter is installed on the processing support, the lifting feeding cutter includes collection cylinder, a pair of lifting grooves are set up on the processing support, lifting extrusion block is installed in the inboard of the lifting groove, the utility model relates to leather upper production technical field, full-process automation, in combination with roller conveyor, lifting feeding cutter and intelligent control system, complete from leather feeding, extrusion forming to cutting separation Full-automatic operation, significantly reduce manual intervention.

The utility model discloses a kind of waste gas collecting devices in crystal hot diamond plating film process, it is related to waste gas treatment technical field, including gas collecting hood and mounting plate, the upper end of the gas collecting hood is equipped with profiled pipe, the upper end of the mounting plate is sequentially equipped with prefiltering device, condensation recovery component, fine filter device and air draught fan from left to right, the upper end of the mounting plate is equipped with control system, the inner wall of the profiled pipe is equipped with pressure sensor, the inner wall of the gas collecting hood is equipped with concentration sensor.The utility model, by prefiltering device, condensation recovery component, fine filter device and the multistage processing of activated carbon adsorption tower, gradually remove dust, volatile organic compounds and other harmful substances in waste gas, so that waste gas is fully purified, meet environmental protection emission requirement.

The application discloses a kind of based on photon crystal microcavity's storage and calculation integrated light chip and preparation method thereof, belong to optical quantum chip field.Light chip includes by lower to upper arrangement substrate, first contact layer, n-type GaAs contact layer, second contact layer and p-type GaAs contact layer;N-type electrode is prepared on step surface, step surface is formed by etching p-type GaAs contact layer and second contact layer and etching part n-type GaAs contact layer;Multiple p-type electrodes are prepared on the surface of p-type GaAs contact layer;Etching forms two-dimensional photonic crystal structure, which includes a photonic crystal waveguide and multiple photonic crystal microcavities, two gratings are etched at both ends of the photonic crystal waveguide, and air grooves are prepared below the two-dimensional photonic crystal structure and the grating.The light chip of the application can realize the optical calculation of matrix vector product and store the optical signal.

The utility model relates to the technical field of oil-gas separation, in particular to a self-gravity spiral type oil-gas separator, which comprises an outer barrel, the spiral part is arranged in the outer barrel; the vacuum pump is arranged on the outer barrel, the spiral part comprises a round barrel, and the bottom of the round barrel is fixed to the circle center of the bottom in the outer barrel; the exhaust middle cylinder is arranged at the center of the barrel; the inner circumference of the spiral blade is fixed with the circumference of the exhaust middle cylinder, and the outer circumference is fixed with the inner wall of the barrel; the center of the lower disc is provided with a through hole and is fixed with the top of the barrel; the upper disc is located at the top of the lower disc and fixed to the outer barrel; the lower discharge pipe is connected with the lower disc; and the upper calandria penetrates through the lower disc and is connected with the upper disc. Oil-gas separation operation is achieved through an assembly composed of the outer barrel, the spiral part and the vacuum pump, gas-containing oil is discharged downwards in a spiral mode by means of self weight, centrifugal force generated by the spiral can facilitate oil-gas separation, oil in separated gas is intercepted through multiple filtering structures, the oil collection rate is better, and the gas purity is higher.

The present invention belongs to the field of cell sorting technology, and specifically relates to a cell sorting system and a method for sorting bad cells. The cell sorting system includes: at least one cell screening device, and a controller for controlling the cell screening device; the cell screening device includes: a culture dish, and a vibrator is arranged below the culture dish; wherein the vibrator is electrically connected to the controller; a water outlet is provided on the side wall of the culture dish, and a water outlet valve is arranged at the water outlet; the controller controls the vibrator to vibrate so that the non-adherent cells in the culture dish float up; after the liquid level of the culture fluid in the culture dish is higher than the water outlet, the controller controls the water outlet valve to open to discharge the culture fluid containing the non-adherent cells. The cell sorting system has a simple structure, can realize cell sorting, and improve the cell collection rate.