58results about How to "Solve the request" patented technology

The invention discloses a processing method of a spinneret plate, which comprises the following steps: acquiring a plate material, and pretreating the plate material to obtain a blank of the spinneret plate; the blank is installed on an automatic punching machine tool, punching is conducted on the same position of the blank for at least three times, modification treatment is conducted after punching of the blank is completed every time, and the spinneret plate is obtained. The invention further discloses the lyocell spinneret plate. According to the spinneret plate, the same position in the spinneret plate blank is subjected to multiple times of punching and other operations, spinneret orifices formed through multiple times of punching are low in roughness and higher in size precision, meanwhile, the strength of materials in the orifices is enhanced, and the problems that in spinning production, yarn breaking and doubling are likely to happen, adhesion is likely to happen, and the plate replacement cleaning difficulty is large can be solved.

The invention relates to the technical field of concurrent processing, in particular to a concurrent processing method and system for requests with sequence requirements, equipment and a medium. The method comprises the following steps: receiving a plurality of request tasks with a sequence requirement, grouping the tasks according to a preset condition to form a plurality of request task groups, then adding all the request task groups into a to-be-processed pool, creating a unique group identifier, recording final modification time, forming a group list, and sending the request task groups to the to-be-processed pool. Whether idle slots exist in the concurrent slots or not is continuously checked, when the idle slots are found, the target request task group with the earliest modification time is selected from the group list, the first request task is taken out to serve as the target request task, meanwhile, the target request tasks distributed to the different concurrent slots are processed, and efficient concurrency is achieved; when a certain target request task is executed, releasing the concurrence slot occupied by the target request task; the contradiction between sequence requirements and concurrent processing is solved, balanced utilization of system resources is realized, and the processing efficiency is improved.

The invention relates to the technical field of underground pipe network damage diagnosis, in particular to an underground pipe network damage diagnosis and analysis system based on an SAR satellite technology. The method comprises the following steps: firstly, collecting an SAR image of a target area of an urban underground pipe network, processing imaging data by adopting differential interference, calculating earth surface deformation and generating two-dimensional earth surface deformation data; then performing three-dimensional scanning on the deformation area by adopting LiDAR measurement to generate three-dimensional terrain point cloud data; performing spatial fusion analysis on the two-dimensional surface deformation data and the three-dimensional topographic point cloud data to obtain three-dimensional surface deformation data of a deformation area, and obtaining damage diagnosis information of the underground pipe network in combination with basic data of the underground pipe network; by combining the sensing data of the deformation area, the accuracy and efficiency of underground pipe network damage diagnosis are improved. The deformation rate and accumulated deformation are calculated through the time sequence InSAR technology, prediction and early warning of potential damage are achieved, and the method is suitable for large-range long-term monitoring of the urban underground pipe network.

The invention discloses a photovoltaic module with an edge creepage area and a preparation method thereof. The method comprises the following steps: providing upper glass, a battery piece, lower glass, a welding strip, a confluence plate and a confluence groove; a slot is formed in any end surface of the confluence groove; the battery piece is pasted on the upper glass, the lower glass is pasted on the battery piece, and one end of the battery piece is connected with the welding strip; the welding strip is bent by 90 degrees relative to the battery piece, so that part of the structure of the welding strip extends upwards along the lower glass and is perpendicular to the battery piece; arranging a bus board on a partial structure of the welding strip, and electrically connecting the battery piece with a bus bar on the bus board through the welding strip; inserting a part of the structure of the welding strip into the slot of the confluence groove, so that the welding strip and the confluence plate are sealed in the confluence groove, and the part of the structure of the confluence groove is arranged on the lower glass; the photovoltaic module can be connected with external equipment through the confluence groove; and filling a packaging adhesive layer between the welding strip and the glass under the condition that the welding strip is not contacted with the confluence groove to complete the preparation of the photovoltaic module.

The invention discloses a redundancy-based hardware failure time division multiplexing detection circuit and method, and the method comprises the steps: enabling the counting of an input selection counter to be connected with a first input completion mark outputted by an upstream circuit, and enabling the counting of an output selection counter to be connected with a second input completion mark outputted by a downstream circuit; the output end of the input selection counter is connected with the enabling end of the input selector muxin, and the output end of the output selection counter is connected with the enabling end of the output selector muxout; the input end of the input selector muxin is connected with the output of the upstream circuit, the output end of the input selector muxin is connected with the input end of the redundant circuit, the input end of the output selector muxout is connected with the output of the hardware circuit, and the output end of the output selector muxout is connected with one input end of the comparator; the input end of the redundant circuit is connected with the output end of the input selector muxin, the output end of the redundant circuit is connected with the other input end of the comparator, and the output end of the comparator is connected with the control register.

The embodiment of the invention discloses a method for generating an artifact image, electronic equipment, a storage medium and a product. The method comprises the following steps: generating a to-be-processed image corresponding to an original ultrasonic image; randomly adding a mask area in the to-be-processed image to obtain a mask image, and determining a target pixel value corresponding to a pixel point of the mask area in the mask image to obtain a to-be-used image; determining an artifact superposition image according to the pixel value corresponding to each pixel point in the to-be-used image; and determining a target artifact image of the original ultrasonic image according to the original ultrasonic image and the artifact superposition image. According to the technical scheme provided by the embodiment of the invention, the target artifact image corresponding to the original ultrasonic image can be generated without annotating a large number of data samples, and the effects of high efficiency and convenience in generating the target artifact image are achieved.

The invention provides a building curtain wall mounting support which comprises a base, a first adjusting assembly is arranged on the base and comprises a first adjusting cylinder and a first adjusting rod, the first adjusting cylinder can move on the base, and a clamping jaw is arranged at one end of the first adjusting rod; a mounting bracket, a cross shaft, a rotating bracket and a supporting frame are arranged on the base, the cross shaft comprises a first shaft rod and a second shaft rod, the first shaft rod is rotationally connected with the mounting bracket, the second shaft rod is rotationally connected with the rotating bracket, two second adjusting assemblies are further arranged on the base, and each second adjusting assembly comprises a second adjusting cylinder and a second adjusting rod. A first spherical head is arranged at one end of the second adjusting cylinder, a first mounting seat is arranged on the base, a second spherical head is arranged at one end of the second adjusting rod, and a second mounting seat is arranged on the rotating support. The technical problems that an existing curtain wall supporting structure is high in construction requirement and poor in universality are solved, and the technical effect that the inclination direction, the angle and the installation position of the panel can be flexibly adjusted conveniently is achieved.

The utility model discloses an underground wet-spraying concrete mixing plant with a multi-layer composite structure, and belongs to the technical field of mining. Comprising a gravel storage chamber, a dosing machine chamber, a stirrer chamber and an auxiliary material chamber which are sequentially communicated, and the height of a bottom plate of the stirrer chamber is lower than that of bottom plates of the dosing machine chamber and the auxiliary material chamber; the sandstone material storage chamber is communicated with the batching machine chamber through a forklift transportation connection way; a batching machine storage bin, a gravel weighing hopper and a horizontal conveying belt are arranged in the batching machine chamber, and the front end of the horizontal conveying belt extends into the stirrer chamber; the mixer chamber is communicated with the main slope ramp through the cement tanker linking way; a concrete mixing tank and a cement vertical tank are arranged in the mixer chamber; the auxiliary material chamber is internally communicated with the main slope ramp through a roadway, a cement horizontal tank, an additive tank and a mixing water tank are arranged in the auxiliary material chamber, and the additive tank and the mixing water tank are communicated to the upper part of the cement vertical tank through pipelines.

The invention relates to the technical field of electronics, and discloses a photovoltaic power station equipment upgrading management method and device, computer equipment and a medium. According to the method provided by the invention, target equipment capable of being upgraded in a photovoltaic power station is determined based on the equipment category, the equipment performance parameter attenuation rate and the service life of each piece of equipment in the photovoltaic power station; target equipment performance parameters after the target equipment is upgraded are determined based on the upgrading information corresponding to the different types of equipment and the equipment performance parameters before the target equipment is upgraded, and upgrading management is carried out on the target equipment based on the upgraded target equipment performance parameters. According to the invention, timely upgrading of the equipment parameters of the equipment capable of being upgraded in the photovoltaic power station is realized, and the equipment performance and the productivity of the photovoltaic power station are ensured to meet the current technical requirements.

The invention discloses a super-heavy-load petroleum and natural gas drilling machine, and belongs to the technical field of petroleum drilling machine devices. The structure comprises a base and a derrick arranged on the base, a winch is arranged on the base, a crown block and a liftable traveling system are arranged at the top of the derrick, the winch is connected with the crown block and the traveling system through a well drilling steel wire rope, and the traveling system is controlled to ascend and descend through the winch; according to the super-heavy-load petroleum and natural gas drilling machine, through the design of the winch and the brake device, the action process of the whole winch can be effectively controlled, the working condition requirements of whole lifting, tripping, drilling and the like can be further met, and then the working efficiency and reliability of the drilling machine are effectively improved; the installation and transportation efficiency of the winch is improved; and the maintenance workload is reduced.

The embodiment of the present application discloses an image retrieval method, an electronic device and related products, the method comprising: obtaining a target area in a target image; when the target area is an area of ​​interest, determining a first global descriptor according to an index of a target object in the area of ​​interest, and searching according to the first global descriptor to obtain a first search result set, the first search result set including N reference objects; extracting features from each of the N target objects to obtain key point local features, and aggregating to obtain N first area aggregated local features; obtaining reference key point local features of the area of ​​interest, and aggregating the reference key point local features into a second area aggregated local feature of a fixed length; comparing the second area aggregated local features with the N first area aggregated local features to obtain a comparison result, and determining K reference objects based on the comparison result. The use of the embodiment of the present application can improve the efficiency of image retrieval.

This invention provides a large-angle, ultra-large-area operable roof skylight system, belonging to the field of skylight construction technology. It includes fluorocarbon-coated welded steel pipes, conversion channel steel, a custom-made waterproof aluminum alloy support frame, an aluminum alloy fixing frame, an aluminum alloy operable sash, and insulated tempered laminated glass. The fluorocarbon-coated welded steel pipes and fluorocarbon-coated square steel serve as the main and secondary keels of the operable roof skylight system, respectively. The conversion channel steel connects to the main and secondary keels. The custom-made waterproof aluminum alloy support frame and aluminum alloy fixing frame are fixed to the conversion channel steel with screws. The aluminum alloy operable sash is fixed to the aluminum alloy fixing frame via hinges. The lower end of the electric window opener is hinged to the fluorocarbon-coated welded steel pipe via a connecting steel component, and the upper end is fixed to the skylight frame via a base. This invention enables a large-angle opening of the ultra-large-area skylight, achieving the effect of fully opening the ultra-large-area skylight before the flue gas fills the smoke storage chamber. Furthermore, the skylight maintains good water tightness and air tightness when closed.

The invention discloses a miniature new energy automobile network topology architecture, which comprises an automobile body controller BCM and a gateway module GW, and is characterized in that the automobile body controller BCM and the gateway module GW are respectively connected with a P-CAN, a C-CAN, a B-CAN, a diagnosis CAN and an LIN; the P-CAN is a power CAN, and the P-CAN is connected with an MCU (Microprogrammed Control Unit), a BMS (Battery Management System), a CDU (Condition Data Unit) and a gear switch; the C-CAN is a chassis intelligent driving CAN, and an ESC, an EPB, an EPS and an ACU / EDR are connected to the C-CAN; according to the method, four paths of CANs and one path of LIN are planned, and the problem that the network load rate is too high due to the fact that a vehicle body stabilization system (ESC), a front collision warning (FCW), a lane departure warning (LDW), a door opening warning (DOW) and other functions are added is solved. According to the invention, the independent diagnosis CAN is planned, and the technical requirements of the country on the isolation and access authentication of information inside and outside the vehicle and the like of vehicle information safety regulations are met.

The invention relates to the technical field of coatings, discloses a high-pressure anti-pollution flashover coating and a refined preparation system thereof, and solves the problems that a coating structure is not stable enough due to the fact that an existing high-pressure anti-pollution flashover coating is low in mechanical strength and adhesive force, and a coating preparation device is not refined enough and cannot be used for uniformly and effectively preparing the coating. The formula of the high-pressure anti-pollution flashover coating comprises the following components in percentage by mass: 3-28% of fluorinated silicone rubber; 3-7% of an anti-arc agent, wherein the anti-arc agent is made of aluminum oxide; the organic composite solvent comprises 1.2 to 3.5 percent of trichloroethylene and 1.2 to 3.5 percent of tetrachloroethylene; the nanoscale high-insulation reinforcing material comprises the following components in percentage by weight: 1-4% of nano aluminum oxide and 1.2-4.2% of nano silicon dioxide; 0.3 to 0.6 percent of a curing agent; 0.02 to 0.05 percent of a catalyst; the high-pressure anti-pollution flashover coating has good mechanical strength and adhesive force, the stability of the coating structure is improved, the coating preparation device is more refined, and the coating can be uniformly and effectively mixed and stirred.

The invention discloses a dynamic self-repairing PI-based nano protective coating for a crease-free folding screen. The dynamic self-repairing PI-based nano protective coating is prepared from a polyimide matrix, a dynamic cross-linking agent, self-repairing microcapsules, a surface-modified nano inorganic filler and a surface energy regulator, the polyimide matrix is obtained by polymerizing aromatic dianhydride and a diamine monomer containing a flexible chain segment, and the flexible chain segment comprises an ether bond or a methylene chain segment; the shell material of the self-repairing microcapsule is polyurea or polyurethane, and the core material of the self-repairing microcapsule is a polyimide repairing agent; the surface modified nano inorganic filler is SiO2 or Al2O3 nano particles subjected to surface grafting modification by a silane coupling agent. The preparation method has the beneficial effects that the coating prepared by the preparation method simultaneously realizes the basic performances of high hardness, high toughness, high light transmittance and strong adhesion, has the efficient grading self-repairing capability aiming at damages of different scales, and finally passes more than one hundred thousand times of extreme bending fatigue tests; the problems of balance of multi-performance requirements, single repair mechanism and low efficiency in the prior art are solved.

A cleaning and draining combined structure of a tailing pond comprises a tailing pond dam body, a dry beach area is close to the right side of the tailing pond dam body, and deposited tailings, muddy water and clear water are sequentially close to the right side of the dry beach area. A drainage well is arranged on the muddy water, the bottom end of the drainage well is connected with a culvert, and an air cushion floating bridge is arranged on the drainage well and connected to clear water; a siphon is laid on the air cushion floating bridge, one end of the siphon is located in clear water, the other end of the siphon is located in the drainage well, one end of the siphon is a siphon water inlet, the other end of the siphon is a siphon water outlet, and the siphon water outlet is lower than the siphon water inlet; the sedimentation area is subjected to reservoir emptying through stoping tailings, muddy water close to the sedimentation area is gradually settled into clear water and directly overflows into the drainage well, and if the water quality does not completely meet the requirement after reservoir emptying, the clear water is taken and drained into the drainage well through a siphon; the problems that sewage treatment burden and sewage treatment cost are increased due to the fact that muddy water directly enters the drainage well and the culvert are solved, and the flood prevention capacity in the flood season is improved through the combined structure.

The invention provides a circulating system equipped with a submersible type cylindrical linear induction electromagnetic pump, which is characterized in that the electromagnetic pump is arranged in a container filled with liquid metal along the longitudinal direction, an inert gas tank is arranged for sealing, and a radiating fin structure is arranged on the outer side of an external stator of the electromagnetic pump. According to the submersible electromagnetic pump circulation system, the occupied area and weight of the liquid metal circulation loop are remarkably reduced, the service life of the liquid metal circulation loop under different working condition requirements is greatly prolonged, and the requirements of deep sea, deep space and other extreme environments for robustness and light weight of equipment can be effectively met.

The invention discloses an adsorption-type cold electricity steam combined supply system capable of continuously and stably working, relates to the technical field of energy supply, and solves the problems that an existing adsorption-type refrigeration heat source is unstable, and resources consumed for preparing high-temperature steam are large. A first water tank is communicated with first adsorption equipment and second adsorption equipment through two groups of water inlet and outlet pipelines respectively; the water tank II is respectively communicated with the adsorption equipment I and the adsorption equipment II through two groups of water inlet and outlet pipelines; the evaporator is respectively communicated with the adsorption equipment I, the adsorption equipment II and the condenser; the condenser is also respectively communicated with the adsorption equipment I and the adsorption equipment II; the hydrogen fuel battery pack is communicated with the water tank II through a group of water inlet and outlet pipelines; and the condenser is communicated with the high-temperature steam preparation unit. The hydrogen fuel battery pack and the adsorption type refrigerating unit are combined, the hydrogen fuel battery pack forms a primary power generation set and serves as a heat source of the adsorption type refrigerating unit, a stable and continuous heat source is provided for the adsorption type refrigerating unit, and a stable heat source is provided for preparation of high-temperature steam.

This utility model provides a positive and negative electrode connection structure for electronic cigarettes, including a cartridge body, an atomizing core assembly, and a lower sealing assembly. The atomizing core assembly is disposed inside the cartridge body, and the lower sealing assembly is disposed at the lower end of the cartridge body. The lower sealing assembly includes a lower sealing silicone, a cartridge base, and an electrode metal sleeve. The lower sealing silicone has an atomizing mounting position that mates with the atomizing core assembly. The electrode metal sleeve is fitted onto the lower end of the cartridge body. The atomizing core assembly has a first pin and a second pin. An electrode block is disposed at the center of the lower end of the cartridge base. The electrode metal sleeve has a clearance hole that mates with the electrode block. The first pin is electrically connected to the electrode block, and the second pin is electrically connected to the electrode metal sleeve. The beneficial effects are: by setting the electrode metal sleeve, the contact area for establishing an electrical connection between the electrode and the pin of the cigarette device can be effectively increased, and the electrode block being disposed at the center can effectively prevent the positive and negative electrodes from being reversed with the pin of the cigarette device.

The utility model discloses an assembly type anti-slurry-leakage steel formwork for concrete structure pouring. The steel formwork is composed of a combined panel unit, a reinforcing unit and an anti-slurry-leakage structure. The combined panel unit comprises a plurality of panel basic frames and panel pieces, and the panel basic frames and the panel pieces are connected through concave-convex clamping structures. The reinforcing unit comprises a plurality of fixing rods which are connected in a clamped mode, the fixing rods are arranged on the outer side face of the combined panel unit in a surrounding mode to form a panel reinforcing frame, and the panel reinforcing frame is used for tensioning the distance between the panel basic frame and the panel pieces and locking and fixing the panel basic frame and the panel pieces. The device is simple in structure, and undesirable conditions such as mold expansion and slurry leakage are practically prevented; meanwhile, stability and reliability are achieved, the engineering construction quality and efficiency are powerfully guaranteed, circulation is convenient, the device can be used for pouring construction of concrete structures of different sizes, the space needed by supporting is small, the requirement for the narrow construction environment is met, and very good practical value and popularization prospects are achieved.

The invention relates to the technical field of anchor rod trolleys, in particular to an anchoring control system and method of an anchor rod trolley and a storage medium, and the anchoring control system comprises a control module, and an operation module, a sensor module and an execution module which are electrically connected with the control module; the operation module performs working mode switching and action control; and according to the equipment state information detected by the sensor module, the working mode switching instruction and the action control instruction, the control module judges whether the working mode is switched or not according to the currently stored working mode flag bit, and then controls the execution module to execute the action corresponding to the working mode. According to the invention, the automatic control of the anchor rod mechanism is realized, the operation is simpler and more convenient, the operation efficiency and the construction efficiency are improved, and the problem that a mechanical full-hydraulic direct-control anchor rod trolley has higher requirements on the experience and the operation proficiency of operators can be solved.

The polypropylene composite material comprises the following components in parts by weight: 58-91 parts of polypropylene resin; 5.5 to 13 parts of a compound scratch resistant agent; 5-10 parts of linear low density polyethylene; 5-10 parts of an elastomer; 10 to 23 parts of compound talcum powder; the compound scratch-resistant agent is a compound of high-density polyethylene and a scratch-resistant auxiliary agent in a weight ratio of (3-10): 1; the compound talcum powder is a compound of non-polar talcum powder and polar talcum powder in a weight ratio of (1-7): 1. The polypropylene composite material disclosed by the invention has the advantages of high surface hardness, strong binding force with glue and high drawing rate, and is suitable for workpieces with high-speed blasting and collision requirements.

The utility model discloses a material moving mechanism for a foam laminating device, which comprises a rack, and a transmission module, a cache module and a stock bin module which are arranged on the rack, and the transmission module comprises a carrier for loading products and a transmission track for conveying the carrier; the cache module comprises a secondary positioning plate arranged on the side edge of the transmission track; a material moving mechanical arm is arranged between the secondary positioning plate and the stock bin module, and a secondary positioning mechanical arm is arranged between the secondary positioning plate and the carrier. According to the material moving mechanism, the material taking mechanical arm and the secondary positioning mechanical arm are arranged, a machine shell of the attaching device can be smaller and can meet the requirement for the stroke of the mechanical arms, the two sets of mechanical arms have functions and operate at the same time, and the working efficiency is improved.

The present disclosure provides a kind of blade section bending stiffness optimization method and device, electronic equipment and storage medium, it is related to blade structure design technical field, by establishing the design architecture of basic reinforcement layer, main reinforcement layer and auxiliary reinforcement layer cooperation, first in first preset position setting main reinforcement layer and iteration adjustment its geometric parameter, after main reinforcement layer reaches process limit, again in second preset position, add auxiliary reinforcement layer, and fixed main reinforcement layer parameter iteration optimization auxiliary reinforcement layer geometric parameter, formed the systematic design system of multiple reinforcement layer, multiple preset position, geometric parameter iteration adjustment, therefore, it can solve the problem that the stiffness direction imbalance caused by lacking multidimensional parameter collaborative adjustment system in prior art, only using single reinforcement strategy and not setting reinforcement layer position reasonably, difficult to meet preset tolerance, material redundancy and high risk of structural failure.

The invention discloses a driving circuit for signal power composite isolation transmission, and belongs to the field of power electronics. The driving circuit comprises a main transmission circuit, and a forward time slot distribution circuit, a reverse time slot distribution circuit, a forward signal circuit and a reverse signal circuit which are connected with the main transmission circuit, two ends of the main transmission circuit are respectively connected with the main control unit and the power device, and the main transmission circuit receives input power of the main control unit and a driving signal of the forward signal circuit and outputs driving voltage to control on and off of the power device; the main transmission circuit adjusts the operation state according to the received feedback signal; the forward time slot distribution circuit is connected with the forward signal circuit and the main control unit, and the reverse time slot distribution circuit is connected with the reverse signal circuit and the power device; the main control unit performs early warning according to the received fault signal; and the forward time slot distribution circuit and the reverse time slot distribution circuit control the working state of the main transmission circuit according to different signals. The driving signal and the driving power are simultaneously transmitted through the single isolation channel.

The invention discloses a phase-coded signal sidelobe suppression method based on a particle swarm optimization cancellation algorithm, and aims to overcome the defects that a phase-coded signal is too high in main-sidelobe ratio and cannot adapt to a target echo scene with a relatively large dynamic state, an accurate optimization target function is constructed, a decoding element is solved by adopting a PSO algorithm, and the phase-coded signal sidelobe suppression method based on the particle swarm optimization cancellation algorithm is realized. In combination with over-threshold detection and a sidelobe cancellation suppression algorithm, sidelobe suppression of phase-coded signals of different coding modes is realized, and the method mainly comprises the following steps: step 1, constructing a target function; step 2, according to the constructed objective function, solving an optimal filter coefficient by adopting a PSO (Particle Swarm Optimization) algorithm: step 3, carrying out side lobe suppression filtering; and 4, performing out-of-band side lobe cancellation suppression.

The invention discloses a sample signal enhancement device and a detection system, and relates to the technical field of laser detection, the sample signal enhancement device comprises a first plano-concave lens and a second plano-concave lens which are arranged opposite to each other, the first plano-concave lens and the second plano-concave lens are confocal at the center of a sample bin, the sample bin is arranged between the first plano-concave lens and the second plano-concave lens, the plane of the first plano-concave lens is plated with a first wavelength laser transmitting film, the concave surface of the first plano-concave lens is plated with a second wavelength laser reflecting film, and the concave surface of the second plano-concave lens is plated with a second wavelength laser reflecting film; the frequency doubling crystal is arranged between the first plano-concave lens and the sample bin and is used for converting the laser with the first wavelength penetrating through the first plano-concave lens into laser with the second wavelength; and the laser with the second wavelength is circularly reflected between the first plane-concave lens and the second plane-concave lens and excites a sample in the sample bin to generate a sample signal.

The present application provides a method and system for predicting a coronal mass ejection event, the method comprising: collecting relevant data of CME within a set time period, obtaining characteristic parameter values ​​of 10 coronal mass ejection events after preprocessing; inputting the characteristic parameter values ​​of the 10 coronal mass ejection events into a pre-established and trained CME judgment model to obtain a prediction of whether the CME will reach the earth; based on the parameter weights obtained by the CME judgment model, the characteristic parameter values ​​of the 10 coronal mass ejection events are matched with the historical events in the pre-established CME historical database to find the closest historical event; for the CME predicted to reach the earth, the arrival time of the earth is calculated. The advantage of the present application is that in terms of ensuring the completeness of the input features, it largely solves the accuracy and refinement requirements of the prediction model, and has special reference significance for the current space weather business forecast.

This invention relates to the field of mixing device technology and discloses a mixing device for producing chemical additives for oilfield fracturing. The device includes a mixing tank and a main drive shaft. The mixing tank is internally equipped with a mounting frame, a wall scraper, and a shearing blade. The mounting frame is located inside the mixing tank, and the wall scraper is fixedly mounted on the mounting frame. Two shearing blades are symmetrically arranged on both sides of the mounting frame. This mixing device for producing chemical additives for oilfield fracturing, through the linkage of the main drive shaft, internal gear disc, slider, and spacing adjustment mechanism, allows the main shaft to rotate forward, first driving the two shearing blades to approach to their minimum spacing before rotating as a whole. In reverse rotation, it first drives the two shearing blades to move away to their maximum spacing. This creates a high-shear zone to break up agglomerates during the feeding stage and expands the shearing blade spacing during the maturation stage to reduce shear force. This achieves adaptive adjustment of shear strength according to the process stage, solving the problem that traditional mixing methods, due to their single strength, cannot simultaneously meet the requirements of dispersion and maturation.

The application discloses an NFC antenna structure for a mobile terminal, which comprises a first differential coil and a second differential coil, the first differential coil and the second differential coil are arranged in two different areas of the mobile terminal respectively; the first differential coil and the second differential coil are electrically connected through a connector, so that the first differential coil and the second differential coil form a combined differential coil in electricity; the combined differential coil is electrically connected with an NFC chip in the mobile terminal to provide a read-write function. The embodiment of the application can solve the problem that the existing differential coil cannot meet the chip and authentication requirements in a limited space.