喷枪

喷枪

灌溉喷枪

UPLINK POWER ADJUSTMENT METHOD AND DEVICE

The invention provides an uplink power adjustment method and device. The method comprises: determining first downlink path loss and second downlink path loss, wherein the first downlink path loss is downlink path loss measured by user equipment (UE), and the second downlink path loss is actual downlink path loss; generating, according to the first downlink path loss and the second downlink path loss, power adjustment information used to adjust uplink power of the UE; and transmitting, to the UE, the power adjustment information. The invention resolves a technical problem in which UE cannot adjust transmission power accurately in the related art.

Travel backpack strap

The utility model discloses a travel backpack strap which comprises a first strap, a second strap and two supporting mechanisms, the first strap and the second strap are distributed left and right, and a tightening binding strap used for tensioning the second strap is sewn at the middle section of the first strap. The two supporting mechanisms are arranged at the top end of the first strap and the top end of the second strap respectively, each supporting mechanism comprises an arc-shaped stainless steel supporting elastic piece, a tensioning belt and a first rough surface, and a first hook surface is sewn on each tensioning belt. The utility model relates to a travel backpack strap which is convenient for supporting a backpack filled with heavy objects by using two supporting mechanisms, so that the backpack cannot frequently collide with the hip of a back wearer, and the first strap and the second strap can be tensioned together without being frequently pulled up by hands, and the travel ...

Three-dimensional printing device and method for sodium silicate sand mold

The invention provides a sodium silicate sand mold three-dimensional printing device and method.The sodium silicate sand mold three-dimensional printing device comprises a rack, a forming assembly, a sand paving assembly, a jetting assembly and inflation equipment, a mixture is paved at the bottom of a cylinder body through the sand paving assembly to form a sand bed for sand mold printing, and the forming assembly is connected with the jetting assembly; the spraying assembly sprays a water-soluble catalyst to a sand bed in the cylinder body, the cover plate covers the cylinder body and forms a sealed cavity, the inflation equipment rapidly inflates carbon dioxide gas into the sealed cavity, and air before vacuumizing is replaced, so that rapid hardening of a sodium silicate sand mold is achieved. And sand mold printing and carbon dioxide blowing are both carried out in the cylinder body, stations do not need to be replaced, and the sand mold printing efficiency and precision can be improved ...

Three-dimensional memory and preparation method thereof

The invention provides a three-dimensional memory and a preparation method thereof. The preparation method of the three-dimensional memory comprises the following steps: forming a laminated structure comprising stacked dummy gate layers and interlayer insulating layers on one side of a substrate, forming a plurality of stepped steps by each adjacent dummy gate layer and interlayer insulating layer, and exposing at least one part of the interlayer insulating layer of each stepped step; forming a buffer layer covering the step; removing the part, covering the side wall of the stepped step, of the buffer layer to form a plurality of interval grooves; forming a dielectric layer filling the interval groove and covering the step; and forming a contact hole which penetrates through the dielectric layer and the buffer layer and extends to the dummy gate layer farthest from the substrate.

Pump risk assessment method based on decision tree

A risk assessment method for a pump based on a decision tree comprises the steps of collecting pressure data, recognizing the maximum pump pressure establishing process, sending the data to a cloud end, training a decision tree model, and conducting comparison assessment on theoretical time and actual time. According to the risk assessment method for the pump based on the decision tree, monitoring is easy, due to the fact that the pump pressure is monitored, and then the whole maximum pump pressure establishing process is extracted, compared with a method for monitoring vibration, the method has the advantages that no extra noise signal interference result exists; according to the method, the overall performance of the pump can be preliminarily judged by analyzing the pump pressure establishing process of the pump, when the performance of the pump is reduced due to abrasion, the pump pressure establishing process of the pump can be monitored, and therefore overall risk assessment is conducted ...

Ultra-wide frequency band multichannel quasi-optical feed network design method and system

The invention discloses an ultra-wide frequency band multichannel quasi-optical feed network design method and system, and the method comprises the steps: converting an antenna feed beam width parameter into a Gaussian beam waist radius of a corresponding frequency band according to a stationary orbit microwave radiometer, and enabling the Gaussian beam waist radius to serve as an input parameter of a quasi-optical feed network; according to the insertion loss index of the quasi-optical feed network, carrying out different polarization channel separation by adopting a polarization grid; a shared ellipsoidal reflector is adopted to converge beams, and the size of a quasi-optical feed network device is reduced; a folding layer ellipsoid reflector or a plane reflector is added to carry out folding layer layout on partial channels to form a double-layer compact quasi-optical feed network; parameters of the multi-channel shared ellipsoidal reflector are optimized to reduce channel beam distortion ...

Concentric forest sample plot investigation and measurement method

The invention relates to a concentric forest sample plot investigation and measurement method, which uses a mobile measurement terminal for measurement, and comprises the following steps: (1) determining a sample plot type, a new sample plot and a traditional fixed sample plot, executing a step (2) and an intelligent fixed sample plot, and executing a step (3); (2) presetting center coordinates of the concentric forest sample plot, and arranging electronic positioning piles at the center of the concentric forest sample plot; (3) the mobile computing terminal and the mobile measuring terminal are started, and the mobile computing terminal is connected with the mobile measuring terminal; (4) the mobile computing terminal establishes connection after activating the electronic positioning pile, and obtains the position of the electronic positioning pile; and (5) connecting the mobile measurement terminal with the electronic positioning pile, and measuring the sample wood in the concentric forest ...

INTELLIGENT FIRE MONITOR SYSTEM BASED ON MACHINE VISION, AND WORKING METHOD THEREFOR

An intelligent fire monitor system based on machine vision, and a working method therefor, which relate to the field of firefighting. The intelligent fire monitor system comprises a visual servo mechanism and a fire monitor (8). The visual servo mechanism comprises an infrared camera (1), a natural light camera (2) and a mechanism support (3), and the visual servo mechanism is mounted above the fire monitor by means of the mechanism support. The fire monitor comprises a fire monitor head (4), a water intake pipe (7), a first stepping motor (5) and a second stepping motor (6), wherein the first stepping motor is mounted below the fire monitor to adjust the horizontal angle of the fire monitor, and the second stepping motor is mounted in the middle of the fire monitor to adjust the pitch angle of the fire monitor head. Therefore, a fire scene is homed in on and tracked in a fire extinguishing operation process, a fire extinguishing agent is rapidly and accurately conveyed to a fire area, ...

Pressure-adjustable hydro-pneumatic suspension with self-adaptive load

The invention discloses a load-adaptive pressure-adjustable hydro-pneumatic suspension which comprises a load detection device, a hydraulic control structure and a middle-rear axle hydro-pneumatic suspension body. The inflation pressure of the energy accumulator of the hydro-pneumatic suspension can be actively adjusted according to the load condition of a vehicle, and the problem that the compressible stroke of the hydro-pneumatic cylinder is insufficient when the vehicle is heavy-loaded is solved. The inflation pressure of the energy accumulator can be actively adjusted, the low rigidity during light load and the high rigidity during heavy load are achieved, the damping performance of the vehicle is met, the comfort of the vehicle is improved, and the load and passing performance of the vehicle are improved.

Large-span space steel structure support

The invention discloses a large-span space steel structure support which comprises a box body, a steel column is arranged in the box body, and a steel rolling shaft assembly is arranged at the bottom of the steel column and used for reducing friction force, so that the steel column can slide under the action of an external load; the energy consumption assembly comprises connecting pieces symmetrically arranged on the surface of the steel column and guide rods arranged in the box body, the guide rods and the connecting pieces are connected through energy consumption pieces, and the energy consumption pieces deform to consume earthquake energy borne by the steel column; the rolling shaft round bars of the steel rolling shaft assembly in the support can reduce friction force and can slide under small external load, so that the natural vibration frequency of the space grid steel structure is effectively changed, and the shock insulation effect is achieved; and sliding can be conducted under ...

Valve element space vibration testing device and method based on virtual binocular vision

The invention discloses a valve element space vibration testing device and method based on virtual binocular vision. The device comprises a synchronous lifting mechanism and an optical imaging device. The synchronous lifting mechanism can synchronously lift the optical imaging device; according to the optical imaging device, the optical principle is applied, through experimental equipment such as a reflecting mirror and a beam splitter prism, a virtual double-eye light path is built, simultaneous measurement of vibration is achieved, a corresponding image processing method is provided, the problem of segmentation of the overlapped part of a valve element is solved, errors caused by edge sawtooth are greatly eliminated, and the measurement accuracy is improved. Accurate positioning of the valve element feature points is achieved.

VEHICLE-MOUNTED LARGE-FLOW FIRE-FIGHTING FOAM FLUID MIXING SYSTEM

Disclosed is a vehicle-mounted large-flow fire-fighting foam fluid mixing system, comprising a supply kit, a mixing kit, a control kit and a pipeline kit, wherein the supply kit comprises an auxiliary air supply device, a fire-fighting water pump, an integral foam pump, a fire-fighting water pump main electric motor, and a coupler; the mixing kit comprises a fire monitor interface, a foam generation device, and a fluid mixing device; the control kit comprises a foam mixing proportion single-chip microcomputer control system, an alarm module, a power supply module, an auxiliary air compressor device switch module, a frequency converter, and a central control display screen; and the pipeline kit comprises air flow guide pipes, fire-fighting water pipes, foam liquid pipes, and pipeline valves. With regard to the problems of flow fluctuation and low foaming efficiency of vehicle-mounted foam fire-fighting equipment, the present invention optimizes a design, uses a new control strategy for controlling ...

Risk description method and device for unknown network threats, equipment and storage medium

The invention relates to the technical field of information security, and discloses an unknown network threat risk description method, device and equipment and a storage medium, and the method comprises the steps: training an unknown network threat detection equipment set according to a to-be-processed network data packet and a preset immune algorithm; when the unknown network threat detection equipment set detects an unknown network threat, the concentration of the unknown network threat detector is synchronously and dynamically evolved along with the intensity of the unknown network threat; obtaining the detection equipment concentration of the unknown network threat, and calculating the asset importance of a target network; describing the unknown network threat risk of the host and the unknown network threat risk of the whole network according to the detection equipment concentration and the target network asset importance; through the above mode, when unknown network threats are detected ...

Automatic processing device for moisture-proof pad

The invention belongs to the technical field of travel article processing equipment, particularly relates to an automatic processing device for a moisture-proof pad, and provides the following scheme aiming at the problems that manual shearing is generally needed in the conventional moisture-proof pad processing process, the drying efficiency is low and the processing efficiency is reduced: the automatic processing device for the moisture-proof pad comprises a processing box, a film coating assembly and a drying assembly, the film covering assembly comprises a mounting plate, a material box and a film covering wheel, the material box is fixedly mounted at the bottom of the mounting plate, a discharging opening is formed in the bottom of the material box, the film covering wheel is rotationally connected into the discharging opening, an electric push rod is fixedly mounted at the bottom of the mounting plate, and a shear knife is fixedly connected to the output end of the electric push rod ...

Water-based coating for HP Indigo ink

The invention relates to a water-based coating for HP Indigo ink and a preparation method of the water-based coating. The water-based coating comprises the following raw material components in parts by weight: 15-20 parts of water-based acrylic resin emulsion; 40 to 75 parts of a waterborne polyurethane resin emulsion; 10 to 20 parts of a water-based wax emulsion; 5 to 15 parts of a water-based EVA resin emulsion; 5 to 20 parts of water-based polyamide resin; 20 to 35 parts of filler; 1-2 parts of a thickening agent; 0.1 to 0.3 part of a defoaming agent; and 70 to 90 parts of deionized water. The water-based coating provided by the invention is applied to HeP Indigo and takes a water-based polyurethane emulsion as a main body and a water-based acrylic resin emulsion, a water-based wax emulsion, a water-based EVA (Ethylene Vinyl Acetate) resin emulsion and a water-based polyamide resin emulsion as auxiliary materials; nano SiO2 and Al2O3 are used as fillers; according to the present invention ...

GAS-POWDER SEPARATED THREE-PHASE JET FIRE MONITOR SYSTEM

A gas-powder separated three-phase jet fire monitor system, comprising a gas-powder separated three-phase fire monitor head (2), a filter (3), a nitrogen booster (4), and a dry powder tank (1); the dry powder tank (1) is connected to a powder inlet pipe of the gas-powder separated three-phase fire monitor head (2) by means of a pipeline, a nitrogen outlet pipe of the gas-powder separated three-phase fire monitor head (2) is connected to one end of the nitrogen booster (4) by means of the filter (3), and the other end of the nitrogen booster (4) is connected to the dry powder tank (1). The system has a simple structure and is easy to use, and a cyclonic separation device of a dry-powder pipeline in the fire monitor can separate out nitrogen for transporting ultra-fine dry powder, so that ultra-fine dry powder and a water-based extinguishing agent are sufficiently mixed, lowering the degree of atomization of a jet, and increasing the range of the fire monitor; in addition, the separated nitrogen ...

DUAL-SPRING HIGH-PRECISION HYSTERESIS-TYPE PRESSURE CONTROL VALVE

A dual-spring high-precision hysteresis-type pressure control valve comprises an upper valve body (8), a lower valve body (1), a dual-spring pressure regulating valve, a spring energy storage linkage mechanism, and a main valve. The dual-spring pressure regulating valve comprises a coarse adjustment stud (12), a coarse adjustment spring (10), a fine adjustment stud (13), a fine adjustment spring (11), a spring guiding sleeve (7), and a pressure regulating spool (6). The spring energy storage linkage mechanism comprises a guide block (5), a spool control linkage (17), an extension spring (18), an extension spring lever (2), and an extension spring slide hook (3). One end of the spool control linkage (17) is connected to the guide block (5), and the other end is connected to a main spool transmission rod (28) by a pin (19). The extension spring slide hook (3) sleeves on the guide block (5). One end of the lever (2) is disposed below the extension spring slide hook (3) and drives the extension ...

Portable medicine taking device

The invention relates to a portable medicine taking device, which effectively solves the problems that the operation is complicated and tablets are easy to pollute during medicine taking. Comprising a main body shell in the vertical axial direction, a rotating cylinder with an upward opening is coaxially and rotationally connected into the main body shell through a supporting plate, a fixing plate is coaxially arranged in the main body shell, a receding groove is formed in the upper end of the fixing plate, a falling pipe is arranged on the rear side of the fixing plate, a medicine containing pipe is arranged at the upper end of the main body shell, a pressing rod is slidably connected into the rotating cylinder, and a containing groove is formed in the inner side wall of the rotating cylinder; a rotating column is coaxially arranged in the rotating cylinder, an annular groove is formed in the outer surface of the rotating column, a guide column is arranged at the inner end of the pressing ...

Application of vitex negundo prevention preparation in preparation of medicine for preventing or treating viral hepatitis A

The invention belongs to the technical field of medicines, and particularly relates to application of a negundo chastetree fruit prevention preparation in prevention or treatment of viral hepatitis A. Pharmacological experiments show that the Jingkang preparation has a remarkable inhibition effect on the HAV-DNA level of infected duck serum, can remarkably inhibit the activity of hepatitis A virus, can be used for preventing and treating viral hepatitis A, has a definite clinical curative effect, has an effect superior to that of Jingkang antisepsis powder, and has a wide clinical application prospect.

SELF-COOLING PRESSURE REDUCING VALVE

A self-cooling pressure reducing valve is provided, applicable to an oil/coal chemical device in an industrial mining enterprise, and comprising a cooling valve core (1), an upper bonnet (2), a guide bonnet (3), a valve body (4), a cooling valve seat (5), an air guide sleeve (6), and a turbine cooling device (8). The cooling valve core (1) comprises a valve core (12) and a valve core cooling fin (13). The cooling valve seat (5) comprises a valve seat bushing (14), a valve seat housing (15), a heat pipe (16), and a valve seat cooling fin (17). A plurality of heat pipes (16) fixed to the valve seat cooling fin (17) are circumferentially disposed outside the valve seat bushing (14). The turbine cooling device (8) comprises a fan housing (18) and a turbine (19) disposed at a medium inlet. A medium is used to drive the turbine (19) such that the fan housing (18) is driven to rotate. The air guide sleeve (6) disposed in an outermost position directionally guides airflow such that the valve core ...

Method for measuring ring upsetting friction coefficient based on image recognition

The invention discloses a circular ring upsetting friction coefficient determination method based on image recognition, and belongs to the technical field of upsetting friction coefficient determination, and the method comprises the following steps: S1, collecting an image of an upset circular ring sample; s2, the inner contour of the upset circular ring sample in the image is extracted through an image edge extraction method, and the inner contour is further extracted through a sub-pixel edge extraction method to obtain an edge contour; the inner diameter, represented by the edge contour, of the upset circular ring is obtained; and S3, on the basis of the standard friction coefficient theoretical calibration curve, the friction coefficient after upsetting is calculated through the inner diameter of the ring after upsetting, the original inner diameter before upsetting, the original height before upsetting and the target height after upsetting. Through two-round edge feature extraction, ...

Preparation method of inhalation type budesonide ultrafine crystal with adjustable particle size

The invention discloses a preparation method of an inhalation type budesonide ultrafine crystal with an adjustable particle size. The preparation method comprises the following steps: (1) dispersing and dropwise adding a budesonide solution A into a copious cooling environment of-100 to-200 DEG C, and rapidly curing liquid drops into sphere-like composite particles; and (2) under the action of stirring, adding the solidified sphere-like composite particles in the step (1) into an emulsifier-containing aqueous solution at the temperature of-5 DEG C to 15 DEG C to obtain the budesonide superfine crystal. The particle size of the budesonide ultrafine crystal can be effectively adjusted by changing the concentration of the solution A. The obtained ultrafine crystal product is a spheroid with uniform particle size, has a roundness value of 0.6-1.0, a CV value of 20%-30% and an average particle size range of 1-10 [mu] m, has a unique crystal form, is suitable for being developed into an inhalation ...

Camera and laser radar fusion calibration optimization method

The invention provides an optimization method for fusion calibration of a camera and a laser radar, and the method comprises the following steps: S1, obtaining the point cloud data of the laser radar and the image data of the camera, and carrying out the calibration of the camera, and obtaining an internal reference matrix; s2, obtaining calibration plate point cloud information according to the laser radar point cloud data obtained in the step S1; s3, randomly generating an external parameter matrix based on the relative position constraint between the camera and the laser radar; s4, the calibration plate point cloud information is projected to the image according to the external parameter matrix and the camera internal parameter matrix, and the generated optimal matrix is selected according to the coincidence degree and the matching error of the calibration plate in the projected image, the structure is reasonable, the calibration accuracy is high, and the limitation on the calibration ...

Magnetomotive single-channel breather valve and oil gas recovery system

The invention discloses a magnetomotive single-channel breather valve and an oil gas recovery system. The magnetomotive single-channel breather valve comprises a pressure-adjustable single-channel single-valve-plate breather valve, the pressure-adjustable single-channel single-valve-plate breather valve comprises a magnetomotive valve plate opening and closing device and a valve plate assembly. A magnetomotive valve plate control mechanism is designed by utilizing the principle of spring energy storage, the valve plate is opened under the two working conditions of overpressure and vacuum in the tank, and high-pressure steam in the tank is released or air is supplemented to balance the pressure in the tank. An oil vapor condensation mechanism based on a vortex tube, a condensed oil mist separation mechanism, a residual oil vapor adsorption filter and an oxygen suction valve filter are designed, and oil vapor discharged during overpressure release is recycled, so that the amount of oil vapor ...

Hydraulic shovel main pump early fault diagnosis method and device based on LSTM flow prediction model

The invention discloses a hydraulic shovel main pump early fault diagnosis method and device based on an LSTM flow prediction model, and the method comprises the steps: collecting data at an edge end, and screening data related to a main pump as input data; performing uniformity processing on the acquired input data; carrying out training test splitting on the processed input data; the LSTM model is trained, the optimal parameters of the model are obtained by using Girdsearch CV, and the optimal model is stored; and predicting the flow of the main pump by using the stored LSTM model. According to the invention, the LSTM model has good performance in a long time sequence and is applied to mining. And under the right rotation constant speed working condition, other multivariate time series data which can be actually measured are used for predicting main pump flow data which are not actually measured. And the predicted flow of the main pump is relatively accurate, and the error is relatively ...

Shaft shoulder angle adjustable type friction stir welding stirring head suitable for angle joint

The invention provides a shaft shoulder angle adjustable type friction stir welding stirring head suitable for an angle joint, which comprises a stirring head main body, a movable shaft shoulder is arranged at the front end of the stirring head main body, a stirring needle channel is arranged on the movable shaft shoulder, and a stirring needle of the stirring head main body can pass through the stirring needle channel. The movable shaft shoulder is installed at the front end of the stirring head body, the stirring needle channel is formed in the movable shaft shoulder and used for allowing a stirring needle of the stirring head body to pass through, the angle of the movable shaft shoulder is adjusted, welding tasks of angle joints of different angles can be coped with, and the use range of the friction stir welding stirring head is widened.

Network flow control method and electronic device

The invention provides a network flow control method and an electronic device, and relates to the technical field of Internet. The network flow control method comprises the following steps: firstly, receiving a user request data flow sent by a task distribution device; then, determining whether the number of to-be-processed user requests contained in the user request data stream is larger than a first threshold value or not; and if so, adding a sub-thread for processing the to-be-processed user request; secondly, distributing each to-be-processed user request in the user request data stream to each sub-thread; and finally, receiving feedback information sent by each sub-thread after the sub-thread finishes processing the to-be-processed user request, and sending first prompt information to the task distribution device according to the feedback information. Therefore, the automatic control of the network flow can be realized, the response speed of the system is improved, and the protection ...

Unknown network threat adaptive discovery method based on gene evolution and evolution

The invention provides an unknown network threat adaptive discovery method based on gene evolution and evolution, and the method is characterized in that the method comprises the following steps: S1, carrying out the evolution and evolution of a network threat gene, so as to generate an immature detector; s2, after an immature detector is generated, autologous tolerance is carried out on the immature detector, and the immature detector is evolved into a mature detector; s3, sending the generated mature detector to an immunodetection center in a vaccine form; and S4, carrying out antigen presentation on the to-be-processed network data, and discovering unknown threats in the to-be-detected antigen by judging whether the antigen is matched with the detector in the immunodetection center. According to the method, unknown network attacks or variations of known network attacks can be identified through some existing typical network attack gene segments.

Welding and milling integrated friction stir welding device suitable for box type pipe component

According to the welding and milling integrated friction stir welding device suitable for the box type pipe component, the two sides of a supporting base are slidably connected with a movable cross beam, a friction stir welding mechanism is arranged below the movable cross beam, and a to-be-welded component is fixed to a pedestal in the welding direction of the friction stir welding mechanism in a limiting mode; a milling mechanism is installed behind the side face of the friction stir welding mechanism and used for removing surface burrs and flashes generated after the friction stir welding mechanism welds a weld joint of a to-be-welded component, and an internal wedge-shaped support is fixed to the upper limit of the pedestal and used for effectively supporting the interior of the to-be-welded component. Effective support can be formed in the to-be-welded component through the internal wedge-shaped support, the internal wedge-shaped support is suitable for the to-be-welded pipe component ...

Novel coupler capable of adjusting and centering through bearings and cross-shaped sliding blocks

The invention provides a novel coupling which is adjusted and centered through bearings and a cross-shaped sliding block, after a motor coupling body and a motor shaft are assembled in a transition fit mode, pin holes are drilled in a matched mode, then pin shafts are installed, the four bearings are fixed to the motor coupling body through the pin shafts with caps, and the pin shafts are fixed through electric welding after penetrating through the holes of the motor coupling body. Four bearings are fixed on the screw coupling body through pin shafts with caps. In order to ensure the centering quality of the screw coupling body and the rotating component, the inner hole of the coupling body is firstly sleeved on the end shaft of the transmission component. The wedge block and the screw coupling body are mutually fastened through a screw, a positioning pin hole is machined in the state, and a positioning pin is installed. In order to ensure that the wedge block does not interfere with the ...

Assembled special-shaped suspender module replacement device and replacement method

The invention belongs to the technical field of bridge engineering, and particularly relates to a split mounting type special-shaped suspender module replacing device and method. The invention belongs to the technical field of bridge engineering, and particularly relates to a split mounting type special-shaped suspender module replacing device and method. The device comprises an assembled hoop matched with the shape of the section of an arch rib, the top end of a temporary sling is fixed to an upper positioning point of the assembled hoop in an angle-adjustable mode through a universal joint module, the bottom end of the temporary sling is fixed to a lower hanging beam, tensioning of the temporary sling is achieved through a compensation jack, and a bridge deck system cross beam is placed above the lower hanging beam. The problem that the angle of the temporary sling is difficult to adjust due to variable angles of the special-shaped arch bridge suspender can be solved, meanwhile, the size ...

Data acquisition and synchronization method and system based on strategy intermediate layer

The invention provides a data acquisition and synchronization method and system based on a policy intermediate layer, computing equipment and a computer readable storage medium, and the method comprises the steps: obtaining client user behavior data through a point burying mode, and forwarding the data to a real-time computing module and an offline computing module for user risk feature calculation; wherein the real-time calculation module generates a plurality of real-time data sets and hash tables containing user real-time risk characteristic data, and the real-time data sets and the hash tables are synchronized to the cache service together with results of the offline calculation module, so that a strategy intermediate layer request is efficiently responded, the risk characteristic data is returned, and the flexible, efficient and comprehensive anti-cheating method is realized.

Intercooler core structure design method

The invention aims to provide an intercooler core structure design method, which comprises the following steps of: on the basis of a determined effective width of a core, giving variation ranges of six factors including fin height, thickness and length of an air side and a gas side, dividing the variation range of each factor into five equal parts, listing an orthogonal table of five numerical values of the six factors, and determining the effective width of the core according to the orthogonal table. Carrying out an orthogonal test; by comparing the calculation results of the pressure loss and the core body size, selecting the optimal group of parameters as the reference of the next orthogonal calculation; and selecting the level number again for orthogonality, selecting a smaller interval for calculation, comparing, selecting the optimal group of parameters as the reference of the next orthogonal calculation, and finally obtaining the optimal fin size of the intercooler core through three ...

Defect identification method and device in three-dimensional sand mold printing and sanding process

The invention provides a defect identification method and device in a three-dimensional sand mold printing and sanding process, and the method comprises the steps: obtaining image data in the three-dimensional sand mold printing and sanding process, and constructing a printing mask pattern of a to-be-printed picture and a defect mask pattern corresponding to the sand bed image data, the printing mask pattern and the defect mask pattern are subjected to bitwise operation, a defect recognition mask pattern is obtained, the defect recognition mask pattern comprises defect positions and defect types, whether the sanding defect affects the printing process of the current layer of the three-dimensional sand mold or not is judged according to the defect recognition mask pattern, and preset operation is executed. The method has the beneficial effects that the defects generated in the sand paving process are monitored according to the defect identification mask pattern, and the influence of the ...

Network anomaly detection method and device based on deep learning, equipment and medium

The invention discloses a network anomaly detection method and device based on deep learning, equipment and a medium, and the method comprises the steps: responding to received initial log data, carrying out the feature extraction of the initial log data according to a preset constant event template, so as to generate a template character sequence, and according to a preset sliding window, through setting a sliding rule, carrying out the feature extraction of the initial log data; the method comprises the steps of obtaining a template character sequence of initial log data, segmenting the template character sequence to generate a target log sequence and a label template character, detecting the target log sequence according to a preset anomaly detection model to generate a target template character corresponding to the target log sequence, and determining that the network behavior corresponding to the initial log data is abnormal under the condition that the target template character is ...

Underwater pile foundation construction soil texture detection device

The invention belongs to the technical field of soil sampling, and particularly relates to an underwater pile foundation construction soil detection device which comprises a sampling assembly and a detection assembly. The sampling assembly can clean impurities in the first target area and sample a soil layer of the first target area; the detection assembly can detect whether sundries exist in the first target area or not, when the sundries exist in the first target area, the detection assembly can control the sampling assembly to be inserted into the sundries to clean the sundries in the first target area, and then the sampling assembly samples a soil layer in the first target area; when the detection assembly detects that no sundries exist in the first target area, the detection assembly can control the sampling assembly to sample a soil layer in the first target area; the detection assembly is used for detecting whether sundries exist at the water bottom or not, the sampling assembly ...

Self-replacement arch bridge suspender and cable force control method

The invention belongs to the technical field of bridge engineering, and particularly relates to a self-replacement type arch bridge suspender and a cable force control method. The self-replacement type arch bridge suspender comprises an upper lifting point and a lower lifting point, the top end of a middle suspender is hinged to the upper lifting point, the bottom end of the middle suspender is sleeved with a connecting block, and lifting hooks are symmetrically arranged on the two sides of the connecting block, so that the lifting hooks are in hooking fit with two sets of lifting rings symmetrically arranged at the lower lifting point; a section of rod body, extending out of the connecting block, of the middle lifting rod is provided with an external thread section, and the external thread section is in threaded fit with a fastening nut; a cable force sensor for testing the cable force of the middle suspender on line is also arranged on the middle suspender; the load-bearing structure ...

Risk control method and device for unknown network threats, equipment and storage medium

The invention relates to the technical field of information security, and discloses a risk control method and device for an unknown network threat, equipment and a storage medium, and the method comprises the steps: determining that the network threat is an unknown network threat when it is detected that the equipment type of the network threat is a target equipment type; calculating known network threats similar to the target gene segment according to the unknown network threats; determining a target threat specific immune strategy according to the known network threats similar to the target gene segments; performing risk control on the unknown network threat according to the target unknown threat specific immune strategy; through the above mode, when the unknown network threat is detected, the target threat specific immune strategy is determined according to the known network threat similar to the target gene segment, and then risk control is performed on the unknown network threat by ...

Adversarial sample detection method, system and equipment based on incremental learning and medium

The invention discloses an adversarial sample detection method based on incremental learning, and the method comprises the steps: an adversarial sample detection model training step: collecting a normal business sample data set, attacking the normal business sample data set through employing a plurality of adversarial attack modes, generating a plurality of types of adversarial samples, and training an adversarial sample detection model based on incremental learning; a known attack confrontation sample detection step: based on an incremental learning confrontation sample detection model, performing preliminary filtering detection on a confrontation sample of a known attack type; an unknown attack confrontation sample detection step of randomly adopting a similarity comparison judgment method or a confrontation sample distance model decision method according to the characteristics of the unknown type of confrontation attack sample, and outputting an original sample with a detection result ...

Ground calibration system and method for antenna emissivity of stationary orbit microwave radiometer

The invention discloses a ground calibration method for the antenna emissivity of a stationary orbit microwave radiometer. The method comprises the following steps: completing emissivity tests on the surface of a large-aperture antenna reflecting surface under different incident angles by adopting resonant cavity test equipment in a normal-temperature and normal-pressure environment; in a vacuum environment, controlling the physical temperature of the reflecting surface of the antenna to the state in the previous step, and measuring the self radiation of the reflecting surface by adopting a standard microwave radiometer; calculating the normalized irradiation power of the standard radiometer at different positions of the reflecting surface, weighting the measured value of the physical temperature of the antenna, the measured value of the emissivity at normal temperature and normal pressure and the normalized irradiation power to calculate the self-radiation of the reflecting surface, and ...

Active pressure adjusting system and method for unbalanced load of front axle of truck

The invention discloses an active pressure adjusting system and method for unbalanced load of a front axle of a truck, and belongs to the technical field of mechanical devices and transportation. Comprising a three-position six-way valve, the three-position six-way valve comprises a front axle balance detection mechanism and a pressure regulation execution mechanism used for controlling the pressure of oil gas suspension air chambers on the left side and the right side of a front axle, and whether the front axle is in a balance state or not is automatically detected through the front axle balance detection mechanism; and then the front axle balance detection mechanism controls the pressure adjusting execution mechanism to adjust the pressure of oil-gas suspension air chambers on the left and right sides of the front axle, so that the axle is finally in a balanced state, and the engineering vehicle is prevented from rolling. The device is simple in structure, high in reliability, rapid in ...

Split type friction stir welding stirring head with length-adjustable stirring needle

The split friction stir welding stirring head with the length-adjustable stirring needle comprises a stirring head shell, a clamping handle and the detachable stirring needle are sequentially installed in the stirring head shell towards the welding direction, external threads are arranged on the periphery of the clamping handle, and an adjusting disc is connected to the periphery of the clamping handle in a driving mode through the threads; the adjusting disc is fixedly installed in the stirring head shell in a limited mode, and an aperture-adjustable aperture shaft shoulder is installed between the bottom of the stirring head shell and the detachable stirring needle and used for compensating an outer side gap between a stirring needle channel of the stirring head shell and the detachable stirring needle. The length of the stirring needle can be adjusted at will so as to adapt to welding of different plate thicknesses; a gap between the conical stirring needle and the shaft shoulder when ...

Method, device and equipment for generating anomaly detection model supporting privacy protection

The invention discloses an anomaly detection model generation method and device supporting privacy protection and electronic equipment, and the method comprises the steps: sending a preset global model and a preset key pair to a plurality of clients, the preset key pair comprising a preset public key and a preset key, receiving a plurality of encrypted local anomaly detection models fed back by the plurality of clients according to the preset global model and the preset public key, aggregating the plurality of encrypted local anomaly detection models to generate a target global model, and generating a local anomaly detection result according to the target global model and the plurality of encrypted local anomaly detection models. The method comprises the steps of generating a plurality of encrypted sparse sub-networks in one-to-one correspondence with a plurality of clients, sending the plurality of encrypted sparse sub-networks to the plurality of corresponding clients one by one, realizing ...

Fixed sample plot resetting method

The invention relates to a fixed sample plot resetting method. The method comprises the following steps: (1) arranging electronic positioning piles at sample piles of a fixed sample plot; (2) setting an electronic positioning pile monitoring password; (3) resetting the fixed sample plot, starting the mobile measurement terminal, connecting the mobile calculation terminal, and searching and connecting the electronic positioning pile by using the mobile calculation terminal; (4) calculating a slant distance and an azimuth angle from the electronic positioning pile to the center of the mobile measurement terminal; and (5) constructing a horizontal coordinate system taking the center of the mobile measurement terminal as an original point, calculating the coordinate of the electronic positioning pile by acquiring the slant distance and azimuth angle from the electronic positioning pile to the center of the mobile measurement terminal in real time, and navigating to the sample pile of the fixed ...

Friction stir welding tool for longitudinal non-thinning welding of aluminum alloy I-shaped component

The friction stir welding tool for longitudinal non-thinning welding of the aluminum alloy I-shaped component comprises a pedestal, portal frames are slidably connected to the two sides of the pedestal, an auxiliary cross beam is arranged on one side of each portal frame, and a friction stir welding mechanism is arranged below a main cross beam of each portal frame; a sheet pre-laying mechanism is arranged below the auxiliary cross beam; a to-be-welded component is fixed to the pedestal in the welding direction of the friction stir welding mechanism in a limiting mode, and the sheet pre-laying mechanism is used for pre-laying a sheet at the weld joint of the to-be-welded component to compensate a shaft shoulder press-in area of the friction stir welding mechanism. According to the friction stir welding device, the sheet pre-laying mechanism is arranged, the aluminum alloy sheet with the mark consistent with that of base metal is laid at the to-be-welded area, the shaft shoulder is pressed ...

Ceramic product inner hole machining clamp mechanism and method

The invention relates to the technical field of inner hole machining, in particular to a ceramic product inner hole machining clamp mechanism and method.The ceramic product inner hole machining clamp mechanism comprises a bottom plate, a supporting frame is fixedly installed on the rear side of the upper surface of the bottom plate, a hanging plate is fixedly installed on the upper portion of the supporting frame, and drilling units are symmetrically installed on one side of the hanging plate left and right; an adjusting rod is rotated to drive a stopping plate to fix a moving plate, so that a placing frame fixes the position of a placing plate, a ceramic flowerpot can be better drilled, a placing cylinder drives a clamping plate to move downwards, and when the clamping plate moves downwards, a clamping piece clamps the clamping plate, so that the clamping piece moves downwards; according to the ceramic flowerpot drilling device, the buffering force can be conveniently adjusted during flowerpot ...

Method for constructing sequencing library and application

The invention relates to a method for constructing a sequencing library and application. The method for constructing the sequencing library comprises the following steps: S1, performing terminal repair and adenylate tail addition on a nucleic acid sample to obtain an adenylate tail-added product; s2, connecting the adenylic acid tail adding product with a joint to obtain a joint connection product; wherein the terminal repairing and adenylate tail adding are continuously carried out; wherein the connection of the adenylic acid tail product and the linker is continuously carried out; wherein a second buffer solution is adopted for connecting the adenylic acid tail adding product with the linker, and the second buffer solution does not comprise divalent cations and adopts low-molecular-weight PEG (Polyethylene Glycol). By adopting the library construction method disclosed by the invention, one-tube-to-bottom operation can be realized, the whole-process reaction is carried out in one system ...

Design method and system of pump station heat dissipation system based on Bio-TRIZ bionic theory

The invention discloses a design method and system of a pump station heat dissipation system based on a Bio-TRIZ bionic theory, and the method comprises the steps: firstly determining improvement energy and conflicts in a pump station heat dissipation structure, building a conflict matrix, and determining a Bio-TRIZ special solution; meanwhile, by combining a Bio-TRIZ biological instance library, a biological special solution of a Bio-TRIZ special solution is matched, and a related biological special solution is found through the biological instance library to support the bionic design; then, verification is carried out from the aspects of function similarity, structure similarity, boundary condition similarity and the like, and a biological instance with the highest bionic value is selected; and finally, analyzing the biological special solution, carrying out modeling by adopting a geometric feature reconstruction method, and applying the bionic model to optimization of the pump station ...

Quasi-optical device radiation performance evaluation device and method

The invention provides a quasi-optical device radiation performance evaluation device and method, the device comprises a signal transmitting assembly and a signal receiving assembly, and the method comprises the following steps: propagating a generated Gaussian beam signal to a tested device at a preset incident angle; one part of the Gaussian beam signal transmitted to the tested device is reflected by the tested device, and the other part of the Gaussian beam signal is transmitted out of the tested device; respectively receiving the reflected Gaussian beam signal and the transmitted Gaussian beam signal, and respectively acquiring reflected radiation field data and transmitted radiation field data; and solving a transmission radiation performance influence factor and a reflection radiation performance influence factor of the tested device. According to the method, Gaussian beam signals are transmitted and reflected through a tested device, the transmitted and reflected Gaussian beam signals ...

Buffer solution composition, kit and application

The invention relates to a buffer solution composition, a kit and application. The buffer solution composition comprises a first buffer solution and a second buffer solution, and the first buffer solution comprises a Tris buffer solution, divalent cations, monovalent cations, ATP and dNTP; the second buffer solution comprises a Tris buffer solution, dithiothreitol and low-molecular-weight PEG (Polyethylene Glycol), and the second buffer solution does not comprise divalent cations. When the buffer solution composition is used for constructing a next-generation sequencing library, the production of linker dimer byproducts can be remarkably reduced.