25results about How to "Increase catch rate" patented technology

This invention discloses a magnetic solid-phase extraction method for detecting trace amounts of glucocorticoids in hydrophilic media, belonging to the field of sample pretreatment and chromatographic analysis technology. The method includes: adjusting the pH of a hydrophilic medium sample containing glucocorticoids and adding an ionic strength modifier to obtain a pretreated sample; mixing a magnetic covalent organic framework-based composite nanomaterial with the pretreated sample and performing oscillatory extraction under a dynamic gradient magnetic field to adsorb the glucocorticoids onto the material surface; separating the material adsorbed with glucocorticoids using an external magnetic field and discarding the supernatant; performing ultrasonic-assisted elution of the material using an elution solvent and collecting the eluent; and detecting the eluent using high-performance liquid chromatography-diode array detector (HPLC-DID) and calculating the glucocorticoid concentration based on a standard curve.

This invention relates to the field of waste gas treatment technology, and discloses a centralized waste gas purification device and process for industrial smelting production. The centralized waste gas purification device for industrial smelting production includes a settling chamber shell. A rectangular frame is arranged above the dust collection hopper of the settling chamber shell. Multiple dust collection plates are horizontally and linearly distributed at equal intervals within the rectangular frame. A movable plate is arranged between adjacent dust collection plates. Multiple air guides are vertically arranged at equal intervals on both sides of the movable plate. Driving components are installed on both sides of the settling chamber shell. The inclined air guides forcibly change the airflow direction and extend the flow path. On the one hand, this increases the residence time of particles, which is beneficial for large particles to escape the airflow and fall into the dust collection hopper. On the other hand, it drives small dust particles to move to the vicinity of the dust collection plates, where the electret material of the dust collection plates can adsorb the small dust particles.

This invention relates to a nonwoven fabric (1) for use as a toner sealant to prevent toner leakage from the outer peripheral surface of the end of a rotating body carrying powder toner in an image forming apparatus. The surface of the nonwoven fabric (1) has recesses (2) and protrusions (3) extending along the length direction (4) of the nonwoven fabric. The recesses (2) are groove-shaped. The average fiber diameter of the constituent fibers (6) is 14.0 μm or less. The orientation of the constituent fibers (6) of the nonwoven fabric (1) is orthogonal or inclined relative to the length direction (4) of the nonwoven fabric (1). The constituent fibers (6) are not thermally bonded to each other. The angle of the orientation of the constituent fibers (6) relative to the length direction (4) of the nonwoven fabric (1) is preferably 45° to 135°.

The invention discloses an electron beam cold bed smelting energy control method for improving the titanium alloy inclusion removal rate and application, and relates to the technical field of metallurgical smelting. The control method specifically comprises the steps that a process functional area of the electron beam cold bed furnace is divided into a smelting area A, a refining area B and a refining area C; wherein the smelting area A is subdivided into a central area A1, a middle lower area A2 and edge areas A3 and A4; the refining area B is subdivided into areas B1, B2 and B3 in the melt flowing direction; the refining area C is subdivided into areas C1, C2 and C3 in the melt flowing direction; energy differentiation distribution is carried out on the refining area B and the refining area C; the energy control method acts on the titanium alloy smelting process, the shape of a molten pool can be actively reconstructed, a thermal shock pit beneficial to sedimentation and an ascending flow field beneficial to floating interception are formed, and the removal rate of low-density inclusions is effectively increased.

This utility model discloses an anti-clogging quartz sand purification and impurity separation device, including a box for separating and purifying quartz sand. A filter assembly for grading and purifying quartz sand is fixedly installed on the inner wall of the box. Self-cleaning components for blowing down quartz sand that is blocked on the filter assembly are fixedly installed at the left and right ends of the box, corresponding to the positions of the filter assembly. By setting the filter assembly in a stepped structure to perform graded filtration of quartz sand, the gradient screening can reduce the accumulation on the screen surface and greatly improve the target particle size capture rate. By setting the self-cleaning component that automatically cleans the inside of the box using air pressure, the quartz sand accumulated on the filter assembly can be drooped down by air pressure, thereby preventing clogging of quartz sand during the separation process and greatly improving work efficiency.

The application provides a non-target detection device and system based on a nanopore and a detection method thereof, the non-target detection device and system based on a nanopore are used for non-target detection of a complex matrix through a nanopore, feature extraction is performed on a nanopore detection graph, and sample classification is realized through model construction, the detection method does not make a prior definition on a to-be-detected target, and various molecular information existing in serum is acquired in a net catching manner, non-target capture and overall state analysis of various molecules in serum are realized, and a new way of rapid and portable disease screening is provided.The application breaks through the limitation of traditional single marker detection by combining the nanopore technology and machine learning, and is expected to promote the development of precision medicine in a more efficient and comprehensive direction.

The application discloses an atmospheric pollutant automatic sampling and analyzing method and device, extracts periodic opening rules of an emission source from a sampling flow time sequence zero fluctuation deviation period, implements concentrated sample enrichment with a differential pressure abnormal jump as a trigger condition in a discharge node time window; the enriched sample is subjected to multi-wavelength differential optical detection to generate an original absorption intensity, a pure reference absorption value is extracted by using a single-component dominant signal in a multi-component covariance degree sudden drop period, an adaptive updated cross-sensitivity correction matrix is established to realize accurate quantification; the quantitative result is compared with a meteorological diffusion prediction value in each period, near-end emission contribution is identified according to the consistency of the downwind matching strength, an emission rule index is generated from the periodic rhythm of the concentration residual after correction; the instrument baseline drift is diagnosed in the index low period, reliable data sets are screened, a traceability list is constructed, a detection and analysis report is generated, and the emission peak sample capture rate, multi-component quantitative accuracy and long-term credibility of the traceability conclusion are improved.

The utility model relates to the technical field of automobile paint spraying, and solves the problems that paint liquid is splashed along with swinging of parts during paint spraying and coating, the splashed paint liquid causes inconvenience in cleaning in the later period, and meanwhile, the paint liquid which cannot be collected also causes hazardous waste emission and causes waste. The automobile coating splash-proof paint spraying device comprises a bottom plate, a waste liquid box is arranged on one side of the top of the bottom plate, a T-shaped frame is fixedly connected to the top of the waste liquid box, connecting rods are fixedly connected to one side of the top of the T-shaped frame in an axial symmetry mode, and a driving motor is fixedly connected to one side of one end of each connecting rod; a collecting assembly used for preventing splashing of automobile paint spraying and coating and collecting and filtering waste liquid is arranged on the other side of the top of the bottom plate and comprises a collecting box arranged on the other side of the top of the bottom plate, the top of the collecting box is connected with a filtering cylinder in a penetrating mode, an inserting groove is formed in the surface of the filtering cylinder, and an inserting plate is inserted into the inserting groove.

This invention discloses a passive oscillating arc dual-wire additive manufacturing particle-reinforced coating system, belonging to the technical field of surface modification equipment. It includes a worktable, a cladding coating welding torch, a coaxial powder feeding particle reinforcement system, a powder feeding mechanism, a wire feeding mechanism, and a high-frequency reciprocating oscillating arc mechanism. The cladding coating welding torch is mounted on a vertical Z-axis platform. The coaxial powder feeding particle reinforcement system includes a coaxial powder feeding welding torch with a powder feeding channel inside. The powder feeding mechanism is connected to the powder feeding channel. The wire feeding mechanism includes a first wire feeder and a second wire feeder. This invention uses the coaxial powder feeding particle reinforcement system to precisely introduce argon-carried particle reinforcement material into the arc molten pool, achieving stable particle delivery and uniform distribution under argon protection. The high-frequency reciprocating oscillating arc mechanism drives the workpiece to achieve rapid oscillation in the width direction, significantly improving the uniformity and density of the formed coating.

The dust filtering device of the grain elevator comprises a grain distributing box and a dust removing mechanism, a grain conveying mechanism is fixedly arranged at the top end of the grain distributing box, a first supporting frame is fixedly arranged on the periphery of the lower end of the grain distributing box, and a second vibration motor is fixedly arranged on one side of the grain distributing box. A volute fan is fixedly arranged on one side of the dust removal mechanism, a first vibration motor is fixedly arranged on the other side of the dust removal mechanism, a dust removal pipe is fixedly arranged at the position, close to the lower end of the first vibration motor, of the other side of the dust removal mechanism, a collection box is arranged at the bottom end of the dust removal mechanism, and second supporting frames are fixedly arranged on the periphery of the lower end of the dust removal mechanism. The dust removal mechanism comprises a shell. The grain distribution box has the beneficial effects that most dust of grains can be stripped in front of a dust removal system through the grain distribution box, the device is provided with a quick disassembly structure, the filter screen can be disassembled and assembled without tools, and daily cleaning and maintenance are facilitated.

This utility model belongs to the field of wooden pallet production and discloses a waste disposal device for a wooden pallet production line. It includes a flow guide component for driving airflow to suck up waste, and a collection component at the bottom of the flow guide component for holding water to absorb and retrieve the waste. A spray component is located behind the flow guide component for circulating water mist to absorb the waste. The flow guide component includes a main box structure for supporting the rotating waste absorption, and a secondary box structure at the top of the main box structure for guiding the waste-laden air downwards. An air supply hose is installed on one side of the top of the secondary box structure, and a gas collection hood is installed at the end of the air supply hose. This waste disposal device for a wooden pallet production line solves the problems of low efficiency, high dust levels, and difficult cleaning in traditional waste disposal through an integrated process of "negative pressure adsorption—water mist capture—mechanical separation." It combines high efficiency, environmental friendliness, and low maintenance costs, making it particularly suitable for the dust control needs of the wood processing industry.

This utility model discloses a cleaning and collection mechanism for dyeing and printing equipment, relating to the field of dyeing and printing pollution treatment. The key technical features are: a housing with a water inlet at the top and a water outlet at the bottom; an air inlet on the front and an air outlet on the back; two spray pipes and a guide pipe connected to the water inlet inside the housing; and a first filter plate and several second filter plates fixedly connected inside the housing. The first filter plate has gaps at its bends to allow airflow. This utility model's combination of guide plates and spray pipes improves the debris capture rate through mechanical interception and water washing, and reduces the kinetic energy of the debris, making it easier for the debris to be captured by the water curtain at the second filter plates. The captured debris is collected with the water flow and discharged from the outlet. The wetted debris does not get airborne, making it easy to handle. Simultaneously, both the first and second filter plates are continuously flushed by water, reducing maintenance frequency.

The utility model relates to the technical field of sewage treatment, and solves the problems that during sewage treatment, garbage in water is attached to a grid, directional cleaning and collection cannot be realized, inconvenience is brought to later cleaning, the cleaning difficulty is increased, the grid is blocked after a long time, and the water passing rate is influenced. The grid for sewage treatment comprises a gantry frame, fixing plates are symmetrically arranged on the inner side wall of the gantry frame, a motor A is arranged at the top end of one fixing plate, the output end of the motor A penetrates through the fixing plate to be fixedly connected with a rotating shaft A, and the surface of the rotating shaft A is sleeved with a grid belt. The side, away from the rotating shaft A, of the grid belt is sleeved with a rotating shaft B, the two ends of the rotating shaft B are rotationally connected with the fixing plates through bearings, and a plurality of conical rods are arranged on the surface of the grid belt. A trapezoidal frame is fixed to the top of the gantry frame, a motor B is arranged on the side face of the trapezoidal frame, and the output end of the motor B penetrates through the trapezoidal frame and is fixedly connected with a roller.

The application relates to the technical field of Internet of Things, and discloses an energy efficiency collaborative optimization method based on Internet of Things, which comprises the following steps: a value-structure-energy efficiency ternary coupling model is constructed to uniformly model data value, system structure and energy distribution; a double-layer recursive optimization architecture is constructed, which comprises two mutually recursive optimization layers, namely a perception layer and a relationship layer; an adaptive tensor decomposition method is introduced to process value-relationship-time three-dimensional data; a multi-time scale energy efficiency equalizer is realized to simultaneously process short-term energy efficiency optimization and long-term energy efficiency planning; and a hybrid optimization objective function based on information entropy and graph centrality is constructed. The application combines cognitive computing and graph computing technologies, realizes the collaborative evolution of data value and system structure, and improves the data acquisition value by 35% under the same energy consumption condition or reduces the energy consumption by 42% under the same data value requirement; the adaptation speed of the system to environmental changes is improved by 3.7 times; and the energy efficiency stability is improved by 78%.

The utility model belongs to the oil fume purifier technical field especially, is an oil fume purifier of oil -water separation, including the shell body, the separation bin of being located in the shell body, electric field subassembly and support mechanism, the side of shell body is equipped with the dismounting opening for dismounting electric field subassembly, the position of shell body side corresponds the electric control box that has hinged to the dismounting opening, the support mechanism includes: the sheet metal support that is fixed in the separation bin and is located on the sheet metal support sheet metal support plate, wherein, the sheet metal support plate is equipped with the oil -leading structure for guiding the flow of oil dirt, electric field subassembly can pull formula set up on sheet metal support plate, in the utility model, the oil -leading structure of support mechanism can quickly lead out the oil dirt, avoids the contact part of electric field subassembly and support structure to deposit, ensures that electric field subassembly pulls smoothly, solves the problem of jam, the cooperation of honeycomb perforation and anode cylinder makes the airflow distribution more even, and oil fume particle capture rate is high, and separation efficiency is high.

The utility model provides a kind of dust removal mechanical device of negative pressure for five-axis double swing head, it is related to numerical control machine tool technical field, to solve the problem that double swing head working condition is prone to interference and cannot guarantee suction port is always close to cutting area, and collision often causes suction head damage or jamming, including upper flange;Upper flange bottom is provided with dust removal telescopic pipe;Dust removal telescopic pipe bottom is provided with lower flange;Lower flange bottom is provided with dust removal soft chain;Floating joint bottom is provided with connecting piece;Connecting piece bottom is connected with lower flange;Upper flange top side is provided with cylinder;Upper flange top is provided with dust collection pipe. Two groups of cylinders are controlled synchronous telescoping by background control device, to drive lower flange to move downwards and stretch dust removal telescopic pipe, dust collection pipe and dust removal soft chain setting, form all-around package to tool, improve dust removal effect, capture rate is significantly improved, the floating joint and connecting piece set, in multiple poses, passive close to cutting area and have collision self-protection ability.

The application discloses a target tracking method based on an improved CamShift algorithm, and relates to the field of visual target tracking. The method comprises the following steps: acquiring image data, and pre-processing the image data; using a target detection algorithm to detect the target of the pre-processed image data, so as to obtain a tracking target; tracing the historical track of the tracking target, using a Lagrange interpolation method to generate a track prediction window, and using a Kalman filtering algorithm to correct the track prediction window, so as to obtain a corrected track prediction window; improving a continuous adaptive mean shift algorithm through a search window dynamic adjustment strategy, and using the improved continuous adaptive mean shift algorithm to track the tracking target based on the corrected track prediction window, so as to obtain a tracking result. The one-dimensional interpolation polynomial is constructed through the Lagrange interpolation method, and the tracking performance of the continuous adaptive mean shift algorithm on high-speed or nonlinear targets is effectively improved.

The invention belongs to the technical field of the Internet of Things, and particularly relates to an intelligent linkage method for user security and protection equipment based on the Internet of Things. The method comprises the following steps: dynamically generating a high-simulation virtual device at a home fog node to trap an attacker; capturing interaction behaviors and generating a standardized log; identifying an attack intention through a pre-trained multi-layer perceptron model; when the confidence exceeds a threshold value, isolating real equipment and broadcasting attack characteristics to the community security network; and cooperative neighbor nodes construct an isolation sandbox, redirect attack traffic and inject false information to consume resources thereof. According to the method, through the technical scheme, active trapping, intelligent identification and group collaborative countering are realized, the early warning and defense capability of the home Internet of Things on zero-day attacks is remarkably improved, and high-value threat intelligence is generated.

The utility model discloses a scum collecting device of a sewage sedimentation tank and a sewage tank adopting the scum collecting device, and aims to solve the problems that the scum collecting efficiency is low, scum is easy to disturb and fine classification is difficult to realize in the prior art. The device comprises a supporting frame, a lifting structure is arranged on the supporting frame, and the movable end of the lifting structure is connected with a scum collecting structure. The scum collecting structure comprises a scum collecting hopper, and at least one detachable baffle is arranged at the two ends of the scum collecting hopper. The device is characterized in that a plurality of residue filtering plates which are arranged at intervals in the lifting direction are connected into the scum collecting hopper in a sliding mode, residue filtering holes are formed in the residue filtering plates, the diameters of the residue filtering holes of the adjacent residue filtering plates are unequal, and preferably, the diameter of the upper residue filtering plate is larger than that of the lower residue filtering plate. The scum collecting hopper is preferably funnel-shaped and initially located at the bottom of the funnel-shaped sedimentation tank, scum enters the hopper due to gravity, and fine classification of waste residues with different particle sizes is achieved through multiple stages of residue filtering plates. After the scum is fully collected, the collecting hopper is lifted through the lifting structure, and the classified scum can be respectively taken out by opening the baffle plate. The device does not need to move repeatedly in water, scum confusion is avoided, source fine classification treatment of waste residues is achieved, and the device is simple in structure and convenient to operate.

This invention discloses a teaching method for intelligent simulation analysis of fall risk in elderly hypertensive patients based on machine learning, belonging to the field of fall risk simulation analysis technology. It includes: acquiring patients' frailty data to obtain a frailty dataset; classifying patients into at least three risk levels based on the frailty dataset, with each risk level corresponding to a different time folding coefficient, thus obtaining a frailty level classification item. This invention establishes a triangular assessment system of age, comorbidities, and cognition, and dynamically compensates for the underestimation of elderly or multi-disease patients by traditional models through a frailty adjustment coefficient, thereby improving the accuracy of high-risk patient identification. Furthermore, through intelligent time window compression technology, the monitoring period is automatically scaled based on the frailty level, shifting the golden window for patient intervention earlier, increasing the monitoring frequency for severely frail individuals, and improving the high-risk event capture rate.

The invention provides a natural collection device and method for in-situ quantitative analysis of food source composition of benthonic animals in suspended load, and relates to the technical field of ecological monitoring of benthonic organisms. The device comprises a streamline cavity, a built-in water flow speed reducing pipe and a suspended load collecting bin. The water flow speed reducing pipe is of a reducing S-shaped bent pipe structure with the front small and the rear large, a water inlet of the water flow speed reducing pipe is in a horn mouth shape, and a long notch is formed in the bottom in the axial direction. The device is suspended in water through the steel wire rope, water flow naturally flows into the speed reducing pipe, and after the water flow is gradually decelerated through the S-shaped reducing bend, suspended load stably settles through the long notch and enters the collecting bin. The in-situ layered collection of the suspended load is realized in a passive and low-disturbance mode, the problems of sample distortion and missed collection of fine particles caused by large water flow disturbance of a traditional device are effectively solved, the accuracy and reliability of food source analysis are remarkably improved, and the device is suitable for long-term ecological monitoring of different water area environments.

The invention relates to an optimized laying method for offshore marine fishery resource gill net investigation, and belongs to the technical field of marine fishery resource investigation. The technical problems that in existing gill net investigation, the capture accumulation effect is obvious, variety coverage is incomplete, the fishing harvesting rate is low, and the data standardization degree is low are solved. According to the method, a laying mode (4h * 3) that the total time length is 12 h and each time period is divided into 4 h is adopted, the fishing harvesting rate can be remarkably increased, the coverage degree of the types of the fishery resources in the investigated water area is enhanced, community structure composition is truly reflected, a scientific and feasible technical scheme is provided for standardization of offshore marine fishery resource investigation, and the method is suitable for popularization and application. The method is suitable for survey work of fishery resources in Laizhou bay and sea areas such as near-shore shallow sea of similar temperate zones, marine ranching demonstration areas and the like.

The invention discloses a miniaturized intelligent cooperative control airborne laser communication terminal, and the terminal comprises a coarse aiming unit which comprises a universal rotary table and is used for achieving the large-angle range coarse positioning and posture adjustment of the laser communication terminal, and providing a basic positioning reference for the subsequent fine aiming adjustment; the fine sighting unit is driven by piezoelectricity-electromagnetism in a hybrid mode, is matched with the coarse sighting unit, obtains positioning information of the coarse sighting unit and is used for achieving small-angle high-precision correction and compensating for positioning errors of the coarse sighting unit; the intelligent control unit is respectively connected with the coarse aiming unit and the fine aiming unit, and is used for receiving an external control instruction and scanning information fed back by the coarse aiming unit and the fine aiming unit, and generating and outputting a corresponding driving control signal; the invention further discloses an application method of the airborne laser communication terminal. The direct-driven coarse aiming unit is adopted to improve the coarse aiming efficiency, the fine aiming performance is considered through piezoelectric-electromagnetic hybrid driving, platform vibration from low frequency to high frequency can be comprehensively compensated, and the tracking precision and the link stability are improved.

Provided is a sample analyzer that achieves an increase in the capturing rate of magnetic particles. A sample analyzer includes a channel configured to introduce a sample liquid containing magnetic particles bound to a specific substance into a capturing region, a supply unit configured to supply the sample liquid to the channel, a capturing unit having a magnetic field structure for generating a magnetic field and configured to adsorb the magnetic particles to the capturing region by the magnetic field, a measurement unit configured to measure the specific substance captured to the capturing region, and a discharge unit configured to discharge the magnetic particles from the channel after measurement by the measurement unit. The magnetic field structure includes a plurality of magnets arranged outside the channel and having different magnetization directions, and the plurality of magnets are arranged so as to make the magnetic flux density on a channel side larger than that on a side facing the channel.

The application discloses a static adsorption type plastic and metal solid waste grading separation device, and relates to the technical field of solid waste separation.The device comprises a grading box, a first fixed plate is fixedly connected to the bottom end of the grading box, a spring is fixedly connected to the bottom outer wall of the first fixed plate, a table plate is fixedly connected to the end of the spring away from the first fixed plate, a suction box and a support frame are fixedly connected to the bottom of the table plate; a grading screening assembly is arranged in the grading box; a dust collection assembly for adsorbing metal particles and a discharge assembly for releasing voltage are arranged in the suction box.In the application, the grading separation mode of "grading screening combined with large-particle-size air separation and small-and-medium-particle-size static adsorption" is adopted, so that efficient separation of solid wastes with different particle sizes and different materials is realized, and the structure linkage design of screening, air separation and static adsorption greatly improves the separation efficiency and purity, and meets the use requirement of people.