344results about How to "Improve capture efficiency" patented technology

The invention relates to the technical field of chemical engineering and machine learning, and provides a method for predicting the solubility of carbon dioxide in a deep-eutectic solvent based on a machine learning model, and the method comprises the steps: collecting CO2 solubility data, carrying out the coding and feature descriptor conversion of a deep-eutectic solvent molecular structure through an open-source chemoinformatics software package RDKit, and constructing a data set. Four algorithms of XGBoost, random forest, a deep neural network and a convolutional neural network are adopted to construct a model, and hyper-parameters are optimized through grid search and k-fold cross validation. After the model is trained, the prediction performance is evaluated, and the optimal model is selected for CO2 solubility prediction. The method improves prediction efficiency and accuracy, has strong adaptability and generalization ability, and provides an effective tool for formula optimization of the eutectic solvent and improvement of CO2 capture efficiency.

The invention belongs to the technical field of wind power generation, and discloses a wind power plant digital twin modeling system and a use method, the system comprises an equipment module, the equipment module comprises a biological bionic adaptive fan blade system, a quantum sensing network, a laser radar system, a high-resolution multi-modal imaging system and an intelligent autonomous flying robot group system; the network module comprises a 5G private network, a quantum communication network and an edge computing network; the data module comprises a distributed database system, a big data processing platform and an AI training platform; the AI module comprises a wind regime prediction model, a power prediction model, an equipment health state monitoring model and a self-adaptive control algorithm model; the application module comprises a digital twinborn visualization platform, a holographic mixed reality operation and maintenance system and an intelligent scheduling system. Modeling and intelligent management of the wind power plant can be realized, the power generation efficiency can be improved, the operation and maintenance cost can be reduced, and the service life of equipment can be prolonged.

The invention relates to the technical field of formaldehyde adsorption, in particular to a preparation method of modified activated carbon for removing formaldehyde, which comprises the following steps: S1, performing acidification pretreatment on coconut shell charcoal, and grafting the pretreated coconut shell charcoal with polyethyleneimine to obtain activated carbon loaded with polyethyleneimine; s2, carrying out dipping treatment and cyclohexanol treatment on the activated carbon loaded with polyethyleneimine to obtain functionalized activated carbon; s3, reacting the magnesium-aluminum hydrotalcite with a quaternary ammonium salt solution and a sodium benzenesulfonate solution to obtain modified hydrotalcite; reacting the modified hydrotalcite with a vinyl silane coupling agent to obtain vinyl hydrotalcite; s4, the vinyl hydrotalcite and 4-amino-3-hydrazino-5-sulfydryl-triazole are subjected to a reaction, and secondary modified hydrotalcite is obtained; and S5, dispersing the secondary modified hydrotalcite and the functionalized activated carbon in water, and adding glutaraldehyde to obtain the modified activated carbon. The modified activated carbon prepared by the preparation method disclosed by the invention realizes selective recognition, efficient adsorption and catalytic degradation of formaldehyde.

The invention discloses a mine microalgae carbon sequestration emission reduction and resource recycling system. The system comprises eight modules including a microalgae culture and closed pipeline photobioreactor microalgae culture module, a CO2 capturing and conveying module and a microalgae after-harvesting and processing module. The prepared culture medium and CO2 captured by an air return way are injected into a closed pipeline photobioreactor through a conveying pipeline, and the closed pipeline photobioreactor is provided with various sensors. Monitoring data are uploaded to the intelligent data analysis and optimization module for analysis and processing, and solution filling and environment parameters are intelligently adjusted through the intelligent monitoring and automatic control module; and collecting combustible gas generated by anaerobic fermentation of the microalgae, processing the primarily screened microalgae, and filtering the mine wastewater. According to the method, efficient culture of mine microalgae, efficient emission reduction and resource utilization of CO2 in a mine return airway and cyclic utilization of wastewater can be achieved, the green and low-carbon sustainable development concept is met, and a new solution is provided for the technical field of mine carbon dioxide emission reduction.

The invention discloses a remote catching net catching device and belongs to the technical field of catching, the height of the device is smaller than the outer diameter, the device is launched in the radial direction of the device, and the device comprises an intermediate control module, an external launching module and a catching net; the multiple external injection modules are located on the periphery of the middle control module, the adjacent external injection modules are detachably connected, and the external injection modules are detachably connected with the middle control module; the catching net is located in an annular cavity formed by splicing a plurality of external shooting modules, and one end of the catching net is connected with the external shooting modules; the intermediate control module is used for receiving an operation instruction, and according to the instruction of the operation instruction, the intermediate control module delays or instantly emits the external emission module to the outside so as to ensure that the capturing net is horizontally unfolded above the front part of the target object; the external shooting module pulls the catching net to move downwards so that the catching net can fall on the target object. According to the device, the catching net is approximately in a horizontal opening state and does forward parabolic motion, it is guaranteed that the catching net can fall down from the position above a target object, the effective catching area is increased, and the catching efficiency is improved.

The invention discloses a Roots blower with a filtering structure, and particularly relates to the technical field of Roots blowers, the Roots blower comprises a base, a main motor is fixedly mounted at the upper end of the base, a Roots blower body is fixedly mounted at the upper end of the base, and vibration separation assemblies are jointly arranged at the front part and the lower end of the inner surface of a shell; and a wet-type filtering assembly is arranged at the rear part of the inner surface of the shell. According to the Roots blower with the filtering structure, by arranging the liquid film mechanism, the cloth bag device and the plugging mechanism, air can be filtered in a dry-wet combined mode, so that large-particle or small-particle dust and impurities in the air can be effectively removed, the filtering capacity and effect are improved, and the service life of the Roots blower is prolonged. The formed liquid film can efficiently capture dust in the air, the gas-liquid contact area is increased, so that dust particles are more easily in contact with the liquid film and are captured, and the capture efficiency of fine particulate matters including tiny dust particles can be remarkably improved.

The invention relates to a single cell capturing method, which comprises the following steps that a single cell to be captured is injected into a micro-fluidic chip containing a micropore coupling micro-cavity through fluid, the chip comprises a base material and a main channel arranged on the base material, the surface of the main channel is provided with a plurality of micropores and micro-cavities corresponding to the micropores, and the micro-cavities are communicated with the main channel; after the main channel is filled with the fluid, the fluid in the main channel is kept static, so that the single cells fall into the micropores under the action of gravity; after the single cells are captured by the micropores, the fluid is introduced again to discharge the uncaptured single cells; and the chip is overturned and inclined after being discharged, so that the single cells enter the micro-cavity. The technical problems that in the prior art, single cell capture efficiency is low, capture precision is insufficient, complex external equipment is needed for control, and single cell capture, culture and the like cannot be completed in the same chip are solved.

The present invention discloses a foam capturing and eliminating device, comprising a foam capturing mechanism and a foam eliminating mechanism, wherein the foam capturing mechanism conveys the captured foam to the foam eliminating mechanism for elimination, the foam capturing mechanism being arranged on the foam eliminating mechanism, the foam digging bucket comprising a rotating shaft, a bucket body, a protective tube and a plurality of foam digging units located in the bucket body, when the foam digging unit of the foam capturing mechanism rotates relative to the rotating shaft, the first scraper of the foam digging unit cuts the foam, and at the same time, the foam enters the foam containing chamber and is conveyed to the foam outlet driven by the rotation of the foam digging unit, and enters the foam inlet channel of the foam eliminating mechanism from the foam outlet for elimination of foam, compared with the technical scheme of pumping foam in the prior art, the present invention actively cuts, destroys and conveys the foam to the foam eliminating mechanism through the foam digging unit, thereby solving the technical problem of difficulty in capturing due to poor fluidity of ultra-stable foam and improving the efficiency of foam capturing and elimination of foam.

The invention discloses efficient oil removal and purification equipment in a deep sea gas field ethylene glycol enriching system, and belongs to the technical field of petroleum treatment, the efficient oil removal and purification equipment comprises purification equipment composed of multiple stages of oil removal devices, the oil removal devices are connected stage by stage through communicating pipes, and each oil removal device comprises a separation pipe, a coalescence module and an oil removal film module, and the coalescence module and the oil removal film module are arranged in the separation pipe; the coalescence module and the oil removal film module are arranged, a coalescence technology and an oil removal film technology are combined, a set of dual separation system is constructed, the combined technology shows obvious advantages when an oil-water mixture with high emulsification degree is treated, a super-hydrophilic fiber bed layer is arranged in the oil removal film module, the fiber bed layer utilizes a water film barrier effect, and the oil removal effect of the oil-water mixture is improved. According to the oil-water separator, the oil-water mixture can be further captured and polymerized without being completely polymerized by the coalescer, and a multi-layer design is adopted, so that the oil-water mixture is treated for multiple times when passing through the equipment, the whole-process treatment from crude separation to fine separation is realized, and the overall separation efficiency of the equipment is greatly improved.

The utility model belongs to the technical field of biological trapping devices, and particularly relates to a lake benthos trapping device which comprises a device body, the device body comprises a trapping box and shunting assemblies, the shunting assemblies are arranged on the two sides of the trapping box and comprise arc-shaped plates and shunting pipelines arranged in the arc-shaped plates, and the shunting pipelines are of hollow structures. A supporting rod is arranged in the base, and a plurality of fan blades are rotationally connected to the supporting rod; the trapping box comprises a first fixing frame, a second fixing frame, a fixing rod, a trapping outer net and a trapping inner net, the trapping inner net is arranged on one side of the first fixing frame and communicated with the trapping outer net, and the trapping outer net and the fixing rod are both arranged between the first fixing frame and the second fixing frame; a counterweight assembly is arranged on one side of the first fixed frame; through the shunting assembly and the counterweight assembly in the device, the water flow impact force in the advancing process can be effectively reduced, shaking caused by non-uniform filtered water quantity is avoided, and the stability of the trapping device is effectively improved.

The invention relates to the technical field of wind power generation, and discloses a method for reducing damage to a yaw mechanism of a wind power generation system through pneumatic unbalance adjustment, and the method comprises the following steps: S1, arranging sensors to monitor blades, a wind field and a vibration state; s2, fusing data, and calculating pneumatic unbalance; s3, constructing a model to predict the change of the wind field; s4, adjusting the balance load of the blade load; s5, optimizing a yaw angle adjustment strategy; s6, yaw action is reduced, and operation is optimized; and S7, health state prediction faults are monitored. The pneumatic load and the pneumatic unbalance degree of the blade are monitored in real time, the micro pneumatic actuator and the dynamic balance weight module are combined, the pneumatic performance and the load distribution of the blade are dynamically adjusted, the impact load and the vibration amplitude borne by the yaw mechanism are effectively reduced, in addition, a torque limiting and intelligent damping protection mechanism is adopted, and the service life of the yaw mechanism is prolonged. The fatigue damage accumulated value and the part abrasion degree of the yaw mechanism are fundamentally reduced, and therefore the service life of the yaw mechanism is prolonged.

The invention belongs to the technical field of power electronic converter control, and discloses a control method of a grid-forming type doubly-fed asynchronous wind power generation system with power control capability, which comprises a control process of a rotor-side converter and a control process of a grid-side converter, and is characterized in that the rotor-side converter forms a grid-forming type characteristic at a motor stator winding port, and the grid-side converter forms a grid-forming type characteristic at a motor stator winding port; the energy injected into the direct current bus capacitor is controlled; the grid-side converter maintains the input and output energy balance of the DC bus capacitor so as to control the voltage of the DC bus capacitor to be constant; the control process of the rotor side converter comprises a frequency support control loop, a power control loop, a voltage and current inner loop and pulse width modulation control, and the control process of the grid side converter comprises a direct current voltage control loop, a reactive power control loop, an alternating current control loop and pulse width modulation control. According to the invention, the capability of controlling the output power can be provided while the network construction type power dynamic index is realized.

The invention provides an innovative rapid screening process of a novel liquid-liquid phase change absorbent for CO2 capture. According to the method, system components are screened by dropwise adding a physical solvent and water, the composition and the load interval of the phase change solvent are determined, and the split-phase load critical value is accurately determined by adopting a back titration method. The screening process is simple and efficient in step, is suitable for various complex liquid-liquid phase change solvent systems, greatly improves the solvent screening efficiency, and is particularly suitable for efficient solvent screening for CO2 capture. The absorbent screened by the process shows excellent CO2 absorption performance at normal temperature and normal pressure, and has the advantages of easy control of phase change conditions, low regeneration energy consumption and the like. The absorbent is not only suitable for CO2 capture of industrial emission sources of coal-fired power plants, cement plants, steel plants and the like, but also suitable for CO2 emission reduction and resource utilization processes in various environmental protection scenes.

A direct air carbon capture system coupled with a closed cooling tower fan comprises a direct air carbon capture device coupled with the closed cooling tower fan through a heat exchanger; a fan of the closed cooling tower is communicated with a gas path of the heat exchanger and is used for conveying wet and hot air in the closed cooling tower to the heat exchanger; the heat exchanger is used for cooling and dehumidifying wet and hot air, and the treated adsorption gas is conveyed to the direct air carbon capture device; the direct air carbon capture device comprises at least one group of adsorption-desorption towers and is used for carrying out direct carbon capture and thermal desorption on the adsorbed gas to obtain high-concentration CO2 gas. And other air conveying devices do not need to be additionally arranged to provide power, so that the energy consumption is reduced, the traditional treatment flow is optimized, the complexity of the system is reduced, and the cost is greatly reduced. The heat exchanger is adopted to treat wet and hot air, collected heat energy is used for providing energy for the CO2 thermal desorption process, waste heat utilization is achieved, and the energy utilization rate is increased.

The utility model discloses an oil-water separator with a filtering device, and relates to the field of oil-water separation equipment, the oil-water separator comprises a separation mechanism and a sedimentation mechanism, the separation mechanism comprises a treatment box, the oil-water separator is provided with an aeration mechanism, a water inlet bin receives and temporarily stores an oil-water mixture, it is ensured that the oil-water mixture uniformly flows into a subsequent separation bin, and the oil-water separation efficiency is improved. An aeration mechanism is arranged at the bottom of a partition plate of a water inlet bin, when gas is injected through an aeration opening, a large number of tiny bubbles are generated, the bubbles make contact with an oil-water mixture in the rising process, and the oil-water separation effect is improved. According to the present invention, the gas is introduced into the water inlet chamber, the adhesion action is utilized to carry tiny oil drops to float, such that the oil drop separation is accelerated, the separation time is shortened, the aeration mechanism ensures that the gas is uniformly dispersed in the water inlet chamber, and especially the wedge-shaped surface increases the contact area of the gas and the mixture, and improves the oil drop capturing efficiency.

The invention discloses an angle-adjustable animal power generation ear tag which comprises a main body shell and a fixing piece, the fixing piece and the main body shell are connected through an angle adjusting structure, the angle adjusting structure comprises a rotating seat arranged on the main body shell, and a rotating cavity is formed in the rotating seat; the rotating cavity is provided with a plurality of bayonets which are distributed at intervals in the circumferential direction; the angle adjusting structure further comprises a rotating head which is arranged on the fixing piece and extends into the rotating cavity, and the rotating head is provided with a buckle capable of rotating and switching between the bayonets. The fixing piece and the main body shell are connected through the angle adjusting structure, when the friction nanometer power generation unit is applied to a specific animal, the performance at different angles is detected after the angle is adjusted, the contact condition of the friction nanometer power generation unit is optimized, and therefore the friction nanometer power generation unit is always kept at the optimal angle in the using process. To maximize the generation of triboelectric charges, this dynamic adjustment mechanism significantly improves energy capture efficiency.

The invention relates to the technical field of environmental protection, in particular to a novel low-energy-consumption analysis method for trapping carbon dioxide in marine diesel engine tail gas by using a compound amine absorbent, which comprises the following steps: S1, reacting the compound amine absorbent containing amino and carboxyl with carbon dioxide in the marine diesel engine tail gas; and S2, separating the original compound amine absorbent in the step S1 from the tail gas through a selective membrane separation technology. According to the method, low-energy-consumption analysis of the carbon dioxide in the tail gas of the marine diesel engine is realized through the efficient trapping capability of the novel compound amine absorbent and a selective membrane separation technology, and the energy consumption and the operation cost of the system are remarkably reduced. The novel compound amine absorbent has high selectivity and high reaction activity, carbon dioxide can be efficiently captured under the conditions of low temperature and pressure, and the use amount and regeneration energy consumption of the absorbent are reduced; a selective membrane separation technology is used for efficiently separating carbon dioxide and other gas components, so that the purity and the trapping efficiency are improved.

The invention discloses a nucleic acid detection sensor based on S9.6 antibody bivalent capture, and belongs to the technical field of biological detection. The sensor comprises hairpin probes H0, H1 and H2, a single-chain probe I and an electrode or a chip which is self-assembled with an S9.6 antibody, the single-chain probe I is used for initiating H1 and H2 to generate a hybridization chain reaction so as to prepare a signal amplification material, in the presence of target nucleic acid, the hairpin probe H0 is recognized and opened and is hybridized with the prepared signal amplification material so as to form a compound, the compound contains two sections of DNA / RNA double strands, the DNA / RNA double strands are specifically recognized by an S9.6 antibody so as to be captured on a sensing interface, and the DNA / RNA double strands are captured by the S9.6 antibody. And determining the content of target nucleic acid by analyzing the signal change on the sensing interface. The method is suitable for any single-stranded nucleic acid detection, the detection process is simple, convenient and rapid, and high-sensitivity detection performance is obtained.

The invention provides a quantitative blending device for pesticide preparation production, and relates to the technical field of pesticide blending, the quantitative blending device comprises a fixed outer cylinder, the bottom of the inner side of the fixed outer cylinder is provided with a driving motor, the output end of the driving motor is provided with a gear, and the inner side of the fixed outer cylinder is provided with two guide rails; a storage cover is mounted on the outer side of the fixed outer cylinder; a driving cylinder is mounted at the top of the outer side of the storage cover, the output end of the driving cylinder penetrates through the outer side of the storage cover, a servo motor is mounted on one side of the storage cover, and two driving wheels are mounted on the inner side of the storage cover; and a detachable barrel cover is mounted at the top of the fixed outer barrel in a closed manner. Toxic peculiar smell generated in the fixed outer barrel in the pesticide feeding and mixing process is effectively absorbed through the air suction ring, the poisoning risk caused by pesticide smell leakage to workers is avoided, and the problems that when the blending device is started in the subsequent stage, the gas injection risk is caused by internal high pressure, and toxic gas escapes are solved.

The invention provides a DNA tetrahedron-based compound as well as a preparation method and application thereof, and belongs to the field of medicines. The invention designs a bioactive composite hydrogel scaffold modified by a functionalized DNA tetrahedron compound containing BMP-2, and the functionalized BMP-2 binding peptide is stably combined with a tetrahedron framework structure with a unique three-dimensional space structure and fine programmability in a chemical click mode. And further preparing with methacrylated hyaluronic acid to obtain the composite hydrogel stent. The functional DNA tetrahedron compound can efficiently capture BMP-2, the composite hydrogel scaffold can capture endogenous BMP-2 in a targeting manner in the early stage of bone defect and stimulate stem cell osteogenic differentiation so as to promote in-situ osteogenesis, a series of complications caused by delivery of exogenous bone morphogenetic protein-2 are avoided, the in-vivo stability is poor, and the in-vivo bone morphogenetic protein-2 can be used for preparing the bone morphogenetic engineering scaffold. The method has the advantages of high safety, high cost and the like, and has a good application prospect.

The invention relates to an optical fiber optical tweezers probe for multi-particle capture, a preparation method and application. The optical fiber optical tweezer probe comprises a single single-mode optical fiber, one end of the single single-mode optical fiber is a cone-like end, and a black porous carbon-based thermoplastic polyurethane polymer is attached to the surface of the end portion of the cone-like end. The optical fiber optical tweezers probe is manufactured according to the following path: one end of a single single-mode optical fiber is sequentially twisted and subjected to electrode discharge; twisting the other end of the single single-mode optical fiber, placing a thermoplastic polyurethane optical fiber coating in an exposed optical fiber twisting area, and performing tapering treatment, so that the other end of the single single-mode optical fiber is provided with a black porous conical transition area with carbon-based thermoplastic polyurethane polymerization after the treatment. By applying the scheme, when the optical fiber optical tweezers probe is prepared, other additional optical elements and additional experimental materials are not inserted, and low-cost and high-efficiency particle aggregation capture based on the single-mode optical fiber can be realized.

The invention relates to a trace sample extracellular vesicle enrichment method based on a synergistic effect. According to the method, 1, 2-distearoyl-sn-glycerol-3-phosphoethanolamine (DSPE) and tetravalent titanium ions (Ti (IV)) are modified in a channel of a micro-fluidic chip, and synergistic enrichment of the extracellular vesicles in a trace sample is realized by utilizing a dual affinity effect. The method is based on a synergistic enrichment principle, can simply, conveniently and efficiently realize high-selectivity, high-purity and high-recovery-rate separation of the extracellular vesicles in the trace sample, has the advantages of few required samples, wide application range, low use cost, high enrichment efficiency and the like, and has important significance on efficient separation of the extracellular vesicles in the trace sample.

The utility model provides a methanol catalytic synthesis system utilizing carbon dioxide in dry quenching circulating gas, which is characterized in that an inlet of a desulfurizing tower of a dry quenching circulating gas decarburization system is used for introducing the dry quenching circulating gas, and a purified gas outlet of the desulfurizing tower is connected with a gas inlet of a decarburization absorption tower; an absorption liquid outlet of the decarburization absorption tower is communicated with an absorption liquid inlet of the desorption tower, an absorption liquid outlet of the desorption tower is communicated with an absorption liquid inlet of the decarburization absorption tower, a flue gas outlet of the desorption tower is communicated with an inlet of the CO2 separation device through the flue gas cooler, and a CO2 gas outlet of the CO2 separation device is communicated with an inlet of the catalytic reactor through the compression device; a hydrogen outlet of the coke oven gas hydrogen production system is communicated with an inlet of the catalytic reactor through the compression system, and methanol is synthesized from carbon dioxide generated by a dry quenching production unit in a coking plant and hydrogen generated by a coke oven gas unit in the catalytic reactor, so that effective utilization of resources is realized.

The invention relates to the technical field of gas separation materials, in particular to a preparation method of a silane coupling agent modified nano ZSM-5 mixed matrix membrane. The method mainly comprises the following steps: preparation of nano ZSM-5, preparation of silane coupling agent modified nano ZSM-5, preparation of a Pebax-1657 solution, synthesis of a silane coupling agent modified nano ZSM-5 filler, preparation of a membrane casting solution, treatment of the membrane casting solution and preparation of a mixed matrix membrane. The invention aims to introduce a silane coupling agent into nano ZSM-5 by utilizing a blending method to prepare the silane coupling agent modified nano ZSM-5, the silane coupling agent modified nano ZSM-5 has excellent CO2 adsorption performance, so that the problems of low permeability and selectivity of a membrane material to CO2 / N2 are solved, and the silane coupling agent modified nano ZSM-5 is compared with beta-cyclodextrin (beta-CD) which is also rich in CO2 affinity groups. The invention further shows that the silane coupling agent modified nano ZSM-5 mixed matrix membrane has excellent permeability and high CO2 / N2 selectivity.

The invention relates to the technical field of plasma electrodes, in particular to an intelligent temperature control and bubble elimination plasma electrode system and a control method thereof.The intelligent temperature control and bubble elimination plasma electrode system comprises an electrode tip, a ceramic insulating layer, an outer electrode, a miniature temperature sensor array, an electromagnetic field modulation device and an optimized electrode surface microstructure design, the outer layer is a ceramic insulating layer, the outer layer of the ceramic insulating layer is an outer electrode, the miniature temperature sensor array covers a key working area and realizes a temperature acquisition function by connecting a temperature sampling circuit in parallel, and the electromagnetic field modulation device enables the ceramic insulating layer to generate micro vibration by regulating and controlling the electromagnetic field intensity and frequency so as to promote bubble discharge. The method has the effect that the size of the plasma electrode is not increased while temperature acquisition and bubble removal are achieved.

The invention relates to blood concentration detection, in particular to a reagent and a method for detecting a monoclonal antibody drug and an anti-monoclonal antibody drug antibody. The reagent for detecting the monoclonal antibody drug and the anti-monoclonal antibody drug antibody comprises a reagent C and a reagent D, wherein the reagent C comprises a mouse anti-F (ab) 2 monoclonal antibody-1 coupling luminous marker and mouse anti-F (ab) 2 monoclonal antibody-2 coupling biotin; the reagent D comprises a macromolecular monoclonal antibody drug coupled luminous marker and F (ab) 2 coupled biotin; the mouse anti-F (ab) 2 monoclonal antibody-1 coupling luminous marker and the macromolecular monoclonal antibody drug coupling luminous marker are mouse anti-F (ab) 2 monoclonal antibody-1 and macromolecular monoclonal antibody drugs which are marked by luminous markers. According to the invention, the monoclonal antibody drug and the anti-drug antibody thereof can be simultaneously detected by one sample, the reaction steps are fewer, and the reaction time is shorter.

The application relates to a point cloud three-dimensional target detection method and system based on a local attention Mamba model, which comprises the following steps: obtaining a key point cloud subset from a point cloud; inputting the key point cloud subset into a local attention Mamba model composed of N hierarchical stacks, and sequentially performing the following steps on each level: for each point, obtaining a neighborhood point set through a hash table index, generating local attention weights based on element-by-element multiplication interaction, and weighting and aggregating neighborhood features to obtain local geometric features; then modeling global long-range dependencies of the local geometric features by using a bidirectional Mamba module, and outputting global features as the input of the next layer; and inputting the global features output by the last level into a bird's eye view backbone network to obtain a three-dimensional target detection result. The application forms a progressive feature learning mechanism of local perception and global enhancement, and significantly improves the expression ability and reasoning efficiency of a point cloud backbone network.

The utility model relates to gas monitoring technical field, specifically disclose a kind of underground gas storage leak monitoring device, including box, air guide mechanism and gas detector;The air guide mechanism includes ventilating cylinder, fan blade and drive mechanism, and the ventilating cylinder includes fixed section and movable section;The drive mechanism is used to drive fan blade to rotate ventilation in ventilating cylinder and drive movable section to rotate around vertical shaft;Gas detector is arranged in the box and detects the gas in ventilating cylinder.The utility model drives ventilating cylinder to realize one hundred and eighty degrees reciprocating swing by drive mechanism, cooperates the fan blade negative pressure adsorption of air guide mechanism, compared with passive diffusion monitoring, significantly improve gas capture efficiency, shorten the leakage response time, and the detection range is expanded from single point to surface domain and direction.By worm simultaneously drive bevel gear set and worm wheel, only one power source can realize gas suction and direction adjustment, simplify mechanical structure, reduce the fault node, improve system operation reliability.

The application relates to the technical field of outdoor mosquito killing devices, in particular to a foldable outdoor mosquito killing device. The device comprises a collecting mechanism, the top of the collecting mechanism is provided with a light mosquito attracting mechanism, and the top of the light mosquito attracting mechanism is provided with a smell mosquito attracting mechanism; the device is provided with an ultraviolet lamp, a solid bait and a gas permeable hole, the ultraviolet lamp and the solid bait are matched with each other, the ultraviolet lamp can emit ultraviolet light to attract mosquitoes with phototaxis, and the solid bait releases smell through the gas permeable hole to attract mosquitoes relying on olfaction. Therefore, the device can efficiently trap the screened mosquito group through the double stimulation of light and smell, and the trapping efficiency of mosquitoes with different tropisms is obviously improved compared with a single trapping mode.

The invention discloses a method for triggering shooting based on image change, which comprises the following steps of: detecting the number of identification blocks of a current image: if the number of the identification blocks of the current image is detected to exceed a capture threshold value, triggering a high-speed camera shooting instruction; and if it is detected that the number of the identification blocks of the current image does not exceed a capture threshold value, setting the current image as a previous image, and obtaining a new shot image. Compared with a traditional image feature recognition algorithm, on the premise that the image block judgment precision is kept, the final judgment of the image blocks is accelerated, the lens capture efficiency of a high-speed camera is improved, and key information can be shot as much as possible under the condition that a small memory is used.