63results about How to "Relief speed" patented technology

The invention relates to the field of ink and discloses an aqueous metal ink. The aqueous metal ink comprises a metallic pigment, an aqueous resin dispersion, a surfactant, polyethylene micronized powder, a dispersant, an antioxidant, a defoamer and deionized water, wherein the aqueous resin dispersion is one or the combination of aqueous acrylic resin solution, which is nonacid and does not contain sulfides and oxides, aqueous polyurethane resin and aqueous silicone acrylate resin. The invention also discloses the preparation method of the aqueous metal ink. The aqueous metal ink provided bythe invention is very stable and aging resistant and has high adhesive force, the cost of the aqueous metal ink is lowered by 30 to 40 percent, and the preparation process is simple.

The invention provides a zeolite-like lightweight heat preservation and sound insulation board applied to a building outer wall, or wall filling of a nonbearing wall or a building top layer. The board comprises dry powder slurry and lightweight aggregate, wherein the dry powder slurry is a zeolite-like geopolymer formed by the excitation of a composite alkali excitant and comprises the following components in percentage by weight: 70-85 percent of coal ash, 5-15 percent of phosphorus slag, 8-20 percent of composite alkali excitant and 0.1-0.3 percent of anticracking fiber; the lightweight aggregate is EPS (Expandable Polystyrene) granules; and the charge ratio of the dry powder slurry to the lightweight aggregate is (89-95): (5-15). The zeolite-like lightweight heat preservation and soundinsulation board has low volume weight, high compression strength, favorable heat preservation and heat insulation properties and good sound absorption effect on various frequency bands of sound waves. The invention also provides a production method of the zeolite-like lightweight heat preservation and sound insulation board. The method has simple process conditions and is easy to realize.

The invention provides a quantum key classification providing method for improving electric power data transmission security. The method comprises the following steps that a communication initiating party judges whether a local key length meets the present communication requirement or not; a communication receiving party judges whether the own residual local key length meets the present communication requirements or not after receiving the present communication request; the communication receiving party starts the quantum key encryption communication; the communication initiating party starts the quantum key encryption communication. According to the quantum key classification providing method for improving the electric power data transmission security provided by the invention, while the problem that the quantum key distribution speed is unmatched with the service requirement speed is relieved, an encryption service, which meets the respective security requirements, is provided for data transmission of an electric power system with different security levels, and the practicability of the quantum encryption technology in the electric power system is greatly improved.

The invention provides a circuit board control cabinet for automation equipment. The circuit board control cabinet comprises a cabinet case (1), a circuit board installing assembly (3), a fixing frame (6) and a lifting circuit board opening part (7), wherein the cabinet case (1) is used for containing the circuit board installing assembly (3), the fixing frame (6) and the lifting circuit board opening part (7) and provided with a doorway area (8). The doorway area (8) is used by a user for operating and maintaining the circuit board control cabinet. The circuit board installing assembly (3) is provided with a stand column shaft (31). A plurality of circuit boards (4 and 5) are installed on the stand column shaft (31) in a pivoting mode from top to bottom. Each circuit board can independently pivot relative to the stand column shaft (31). The fixing frame (6) is vertically and fixedly arranged in the cabinet case (1).

The invention discloses a low-rotating-speed double-layer propcopter which comprises a rack and propellers, wherein the propellers are mounted on the rack by a center shaft; the double-layer propellers are the upper-layer propeller and the lower-layer propeller respectively; a rotating direction of the upper-layer propeller is opposite to that of the lower-layer propeller; each of the upper-layer propeller and the lower-layer propeller comprises two blades respectively; every two blades are symmetrically arranged on the two sides of the center shaft respectively by a connecting rod; concave structures are formed on the lower surfaces of the blades; when the load capacity is 200kg, the corresponding area sum of the four blades is 6-15m<2>; the length of each blade is 1.8-2.5m; and the width of each blade is 0.6-1.5m. The low-rotating-speed double-layer propcopter has the advantages that the large-blade propellers have lower rotating speeds, the abrasion of accessories is less, the service life is longer, a failure rate is lower, a use ratio of engine power is increased, engines with smaller sizes can be adopted, the mass is lighter, the cost is lower, more energy is saved, and a market prospect is better.

The invention discloses a real-time street view image semantic segmentation method based on deep multi-branch aggregation, and relates to a computer vision technology. A popular encoder-decoder structure is adopted; the method comprises the following steps: firstly, transforming a lightweight image classification network as a basis to serve as an encoder; dividing the encoder into different sub-networks, and sending features in each sub-network into a designed multi-branch feature aggregation network and a global context module; performing enhancement on spatial details and semantic information on features needing to be aggregated by using a lattice-type enhancement residual module and a feature transformation module in the multi-branch feature aggregation network; and finally, according to the sizes of the feature maps, aggregating the output feature maps of the global context module and the output feature maps of the multi-branch feature aggregation network step by step from small to large so as to obtain a final semantic segmentation result map. While the streetscape image with a large resolution is processed, high streetscape image semantic segmentation precision and real-time prediction speed are maintained.

The invention discloses a MoS2 phototransistor capable of improving photoelectric detection performance and a manufacturing method thereof, and relates to the technical field of photoelectric detection. Based on a novel 2D/0D hybrid interdigital phototransistor, high responsivity, a ultrafast response speed and self-powered photoelectric detection performance are realized. The phototransistor comprises a Si/SiO2 substrate, double-layer MoS2 thin films, a Pt electrode, InP@ZnS quantum dots and a silver film, and the plurality of double-layer MoS2 thin films are arranged on an upper surface of the Si/SiO2 substrate; a Pt electrode is manufactured on the upper surfaces of the double-layer MoS2 thin films and the Si/SiO2 substrate to serve as a drain-source electrode; the Pt electrode is an interdigital electrode, a thickness of the Pt electrode is 50nm, a width of the Pt electrode is 2 microns, a finger length of the Pt electrode is 300 microns, and a width distance between the two electrodes is 5 microns; the InP@ZnS quantum dots are manufactured on the surfaces of the Si/SiO2 substrate, the double-layer MoS2 thin films and the Pt electrode; and the silver film is manufactured on a back surface of the Si/SiO2 substrate to serve as a back gate electrode. Due to a design of a 2-micron interdigital Pt electrode, a plasma resonance effect can be achieved, and photoresponsivity is improved; and introduction of an asymmetric Pt/MoS2 Schottky barrier can effectively balance a dilemma of the photoresponsivity and a photoresponse speed.

The invention discloses an air supply system of a rail vehicle carriage. The air supply system comprises a carriage air supply passage arranged above a vehicle in-built roof. An air outlet of the carriage air supply passage is provided with a longitudinal beam section, the longitudinal beam section is internally provided with an air cavity, and a plurality of section air outlets are formed in the longitudinal beam section and located below the vehicle in-built roof. According to the air supply system, air is horizontally blown out from the top of a carriage, great airflow cannot exist in the carriage, and the comfort level is high in the carriage; and the air is buffered in the air cavity before being blown into the carriage, and the air speed is stable.

The invention relates to the technical field of red fire ants control, in particular to a high-efficiency insecticide powder for killing red fire ants, the active ingredient of which is beta-cypermethrin, and the mass percentage of beta-cypermethrin is 0.05% to 1%. Beta-cypermethrin is a contact insecticide with high insecticidal activity and fast knockdown speed. The content of the present invention is 0.05%~1%, which can effectively alleviate the contact activity and knockdown speed of this variety, so that it can bring the drug to the ant nest, Three days later, the poisoning intensified and the RIFA gradually died; activated clay and talcum powder have a high melting point and are easy to crush, and the crushed mesh can reach more than 1,000 mesh, thereby promoting the penetration of the drug into the villi of the RIFA body and carrying the drug to the already superficial interior , killing the whole nest of ants; the present invention uses talcum powder, activated clay and beta-cypermethrin to mix, which can effectively prevent the ground from being affected by the dissolution of the medicine when it is wet, and avoid water pollution at the same time.

The invention discloses a circuit board control cabinet with a replaceable pivot drive area (41). The circuit board control cabinet comprises a cabinet shell (1), a ventilating system (2), a circuit board placement component (3), a fixed mount (6) and a lifting type circuit board opening component (7), wherein the cabinet shell (1) is used for accommodating the ventilating system (2), the circuit board placement component (3), the fixed mount (6) and the lifting type circuit board opening component (7), and provided with a gate area (8) where a user can operate and maintain the circuit board control cabinet; the ventilating system (2) is sued for inputting cooling air into the cabinet shell; the circuit board placement component (3) is provided with a stand column shaft (31) on which a plurality of circuit boards (4, 5) are pivotally installed from the top down, and the circuit boards can pivot relating to the stand column shaft (31) independently from one another.

The invention provides a video CDN (Content Delivery Network) scheduling optimization method and device. The method is applied to a scheduling server. On the basis of traffic control, a target scheduling server requested by a client is synthesized. In general, the target scheduling server is determined by the client based on own practical downloading speed, so through combination of an emergency parameter and a target operation state of the scheduling server, a video server is allocated for a scheduling request, traffic and downloading speed demands can be satisfied to the greatest extent, andthe problem that the scheduling server cannot take the downloading speed and traffic control into consideration at the same time can be mitigated or even avoided.

The invention relates to the technical field of water conservancy facilities, in particular to a river dam and a dike system. The river dam comprises an interception dam, multiple flow guide supporting pillars and multiple flow guide channels arranged in the interception dam, wherein the flow guide supporting pillars are arranged at the upstream face end of the interception dam and used for dredging sediment deposited at the bottom of a riverbed; the flow guide channels are sequentially arranged along the height direction of the interception dam from top to bottom; the two ends of each flow guide channel communicate with the upstream and the downstream of the interception dam, a cover plate is arranged at one end of at least one flow guide channel, the flow guide channels can be guided or intercepted by the cover plates so that the water level of an upstream watercourse can be adjusted, and thus the technical problems of a large sludge storage quantity and a slow flood discharge speed, existing in the prior art, of the upstream of the river dam are alleviated.

The invention relates to a preparation method of lithium difluorophosphate. The preparation method comprises the steps: reacting lithium hexafluorophosphate, oxalate and silicon tetrachloride in an organic solvent, wherein the reaction is carried out in a protective atmosphere, and the molar ratio of the lithium hexafluorophosphate to the oxalate to the silicon tetrachloride is 1:(1-1.5):(0.55-0.75). According to the preparation method, lithium difluorophosphate can be simply, conveniently and efficiently synthesized at room temperature, and a high-purity lithium difluorophosphate product meeting the use requirements of a battery electrolyte can be obtained through simple treatment after reaction. The preparation method provided by the invention has the advantages of low preparation cost,simple reaction flow, strong operability, suitability for industrial production and the like.

Provided is a circuit board control cabinet with a cooling water pipe (70). The circuit board control cabinet comprises a cabinet shell (1), the cooling water pipe (70), a circuit board arrangement assembly (3), a fixing frame (6) and an elevating type circuit board opening component (7). The cabinet shell (1) is used for accommodating a ventilation system (2), the circuit board arrangement assembly (3), the fixing frame (6) and the elevating type circuit board opening component (7) and is provided with an entrance area (8). The entrance area (8) is used by a user to operate and maintain the circuit board control cabinet. The ventilation system (2) is used for inputting cooling air into the cabinet shell (1). The circuit board arrangement assembly (3) is provided with a stand column shaft (31) which is pivotally provided with multiple circuit boards (4,5) from the top to the bottom. Each circuit board can pivotally rotate relative to the stand column shaft (31) in a mutual independent way.

The invention proposes a three-needle group liquid filling and sealing machine, which includes a filling needle and an inflation needle fixed on a support, the liquid medicine is connected to the filling needle through a pipeline, the gas storage tank is connected to the inflation needle through a pipeline, and the packaging bottle Located on the conveyor chain below the filling needle and inflation needle, a material tray is provided at the end of the conveyor chain, and a group of short suction needles are arranged side by side at the filling needle; the lower end of the inflation needle is closed at the bottom, and the lower end of the inflation needle A plurality of transverse air-filling holes are arranged along the circumferential direction. The use of the present invention can effectively solve the problem of foam overflow generated in the liquid medicine subpackaging process, reduce the loss of medicine, and also reduce the packaging failure rate caused by the foam overflow of the liquid medicine, and improve the quality of production operation.

The invention relates to a preparation method of a 4-pyridine methylamine bromide optimized tin-lead mixed perovskite solar cell. The preparation method comprises the following steps: cutting ITO conductive glass and cleaning; preparing a hole transport layer; preparing a perovskite precursor solution added with PyABr; preparing a perovskite thin film; preparing an electron transport layer; and preparing a metal electrode. In a perovskite precursor solution, a pyridine group can generate a strong binding effect with metal ions of lead and tin, so that the crystallization kinetics is changed, the problem that the film forming and crystallization speed is too high in the preparation process of the tin-lead mixed perovskite thin film is solved, and oxygen is prevented from reacting with Sn2+. The iodide ions can improve the crystal quality of the perovskite and supplement the iodine vacancy defect, so that the defect state density in the perovskite is further reduced, and the recombination of carriers is inhibited. Under the combined action of the two ions, the defects in the tin-lead perovskite are effectively passivated, the photoelectric property of the tin-lead mixed perovskite is obviously improved, and the stability is also effectively improved.

The invention discloses a circuit board control cabinet capable of shielding electromagnetic interference. The circuit board control cabinet capable of shielding electromagnetic interference comprises a cabinet shell (1), a ventilation system (2), a circuit board arrangement assembly (3), a fixing frame (6) and a lifting type circuit board opening assembly (7), wherein the cabinet shell (1) is used for containing the ventilation system (2), the circuit board arrangement assembly (3), the fixing frame (6) and the lifting type circuit board opening assembly (7) and is provided with a doorway region (8); the doorway region (8) is used for a user to operate and maintain the circuit board control cabinet; the ventilation system (2) is used for inputting cooling air into the cabinet shell (1); the circuit board arrangement assembly (3) is provided with a stand column shaft (31); multiple circuit boards (4 and 5) are mounted on the stand column shaft (31) from top to bottom in a pivoted mode; both the circuit boards can independently pivot relative to the stand column shaft (31).

Provided is a circuit board control cabinet with a double-dovetail-groove structure guide rail. The circuit board control cabinet comprises a cabinet shell (1), a ventilation system (2), a circuit board arrangement assembly (3), a fixing frame (6) and an elevating type circuit board opening component (7). The cabinet shell (1) is used for accommodating the ventilation system (2), the circuit board arrangement assembly (3), the fixing frame (6) and the elevating type circuit board opening component (7) and is provided with an entrance area (8). The entrance area (8) is used by a user to operate and maintain the circuit board control cabinet. The ventilation system (2) is used for inputting cooling air to the cabinet shell (1). The circuit board arrangement assembly (3) is provided with a stand column shaft (31).

The invention belongs to the technical field of motor control and discloses a control method and an experiment platform of a driving system of a permanent magnet synchronous motor. The experiment platform comprises a permanent magnet synchronous motor controller, a vehicle simulation load, a permanent magnet synchronous motor driving rack and a temperature measurement system; the control method comprises the steps that magnetic field directional control is controlled based on an optimal signal injection strategy; the magnetic field directional control is used for online estimating the temperature of a stator winding of the permanent magnet synchronous motor; a loss model is established; an active heat management control strategy is executed for performing dynamic limitation on the currentand the temperature of the permanent magnet synchronous motor through the estimated stator winding temperature; and efficiency optimization control of the permanent magnet motor is carried out on thebasis of the constructed loss model based on an improved golden section method. By virtue of the control method and the experiment platform, the operation performance limit of the driving motor underthe electric heating constraint can be maximized, the reliability of the electric automobile can be improved and the maintenance cost can be lowered.

The invention belongs to the technical field of material production and discloses a method for synthesizing a manganese oxide attapulgite composite material through a microwave method. The method comprises the following steps: adding treated attapulgite into H2SO4; carrying out microwave treating and filtering; washing with distilled water until a mixture is neutral; centrifuging and removing liquid; carrying out microwave drying, grinding and sieving and preserving; adding an MnSO4 solution and sodium dodecyl sulfate into the acid activated attapulgite; carrying out ultrasonic treatment to obtain dispersed attapulgite; carrying out microwave treatment and completely evaporating moisture; sufficiently dispersing Mn<2+> to inner surfaces of attapulgite pore channels; adding the attapulgiteinto a NaOH solution and carrying out the ultrasonic treatment to enable OH<-> ions and the Mn<2+> dispersed in to attapulgite micro-pores to generate Mn(OH)2; washing with distilled water until liquid is neutral; centrifuging and removing the liquid, so as to remove the free Mn(OH)2 on the surface of the attapulgite; carrying out microwave drying and neutralizing acid and alkali in wastewater. The method disclosed by the invention has the effects of improving the dispersity of manganese oxide and combining the adsorption performance of the attapulgite, and can be used for enhancing a degradation capability of the manganese oxide on difficult-to-treat nitrobenzene type wastewater.

The invention belongs to the technical field of a vegetable seedling raising and breeding automatic device, and discloses an intelligent automatic loading system and a loading method for vegetable seedling breeding, wherein a control program is built in a computer, and the time interval of seeds falling into a hole tray is adjusted according to the required sowing density; the transverse bar and the longitudinal bar are controlled to slide on the electric track, and the seeds are filled into the hole tray in an orderly and accurate position; the missing image information of the seeds in the cave plate is collected by the camera installed on the cave plate and fed back to the computer to control the closing of the gear button to the circular valve. As that transverse rod and the longitudinal rod slide on the electric track under the action of the control program, the device of the invention orderly and accurately fills the see into the hole tray, the process automatically and efficiently replaces the working process of artificial vegetable seedling breeding and filling, and simultaneously improves the survival rate of the seeds, which is suitable for large-scale popularization and use.

The invention discloses a water cup for making sesame paste, which relates to the field of cups. The water cup for making sesame paste includes a cup body and a cup cover set on the cup body, a cup handle is installed on the side wall of the cup body, and an inner cavity is provided in the middle of the cup cover , the inner cavity is equipped with a motor, and the cup cover is rotated on one side facing the cup body, and an electric stirring rod connected to the motor is installed; the edge position in the cup cover is provided with an annular cavity, and the bottom of the annular cavity A plurality of through holes communicating with the cup body are opened, and a plurality of through grooves are installed on the outer side of the cup cover. A ventilation pipe communicating with the cup body is installed on the side wall of the end close to the cup cover, and the end of the ventilation pipe away from the cup body is higher than the cup body. The water cup for making sesame paste of the present invention prevents the sesame paste powder from agglomerating during the soaking process.

The invention discloses an electric vehicle charging scheduling method considering the demand matching degree, relates to the technical field of electric power system control, and solves the problems of under response, over response, low solving convergence speed and the like in the electric vehicle charging scheduling process, and the method comprises the following steps: establishing an electric vehicle charging load prediction model of a trip chain; inputting the sorted information into a model for predicting the charging load of the electric vehicle to obtain a prediction result; establishing an electric vehicle scheduling model of the demand matching degree; inputting the prediction result in the step 1 into the scheduling model in the step 2, and solving through a fuzzy cuckoo algorithm to obtain a scheduling scheme; according to the method, the improved trip chain is used for predicting the load of the electric vehicle, the charging load of the electric vehicle in different time and space is predicted, various factors such as the number of the electric vehicle and the battery capacity can be considered, and the prediction result is more real and reasonable.