146results about How to "Stable performance" patented technology

The invention relates to the technical field of insulating materials, in particular to a flame-retardant high-strength insulating material and a preparation process thereof. The insulating material comprises the following components in parts by weight: 50-60 parts of polyvinyl chloride, 20-40 parts of crosslinked polyethylene, 10-15 parts of an ethylene-vinyl acetate copolymer, 20-40 parts of a flame retardant, 5-15 parts of talcum powder, 10-20 parts of calcium carbonate, 6-12 parts of a compatilizer and 3-8 parts of an antioxidant. The flame retardant is prepared by taking ammonium polyphosphate as an acid source, polydopamine as a charring agent and modified graphene oxide as a reinforcing agent, the flame retardant is added into polyvinyl chloride and a crosslinked polyethylene insulating material base material, and combined with the combined action of an ethylene-vinyl acetate copolymer, talcum powder, calcium carbonate, a compatilizer and an antioxidant, the flame retardant property of the insulating material base material is improved, and the flame retardant property of the insulating material base material is improved. The prepared insulating material not only has excellent mechanical property, but also has excellent flame retardant property, so that the service life of the material is prolonged.

The invention relates to the technical field of hydraulic engineering operation prediction, in particular to a hydraulic engineering operation trend prediction method and system. The method comprises the following steps: acquiring multi-source hydraulic engineering data, and generating a hydraulic engineering three-dimensional model through multi-source space fusion processing and three-dimensional model simulation; performing geometric complexity identification and stress path analysis on the three-dimensional model to determine key nodes in the water conservancy project; historical water conservancy data are obtained, time sequence conversion and potential mode mining are carried out, and potential modes related to engineering are obtained; performing stress superposition comparison on the key nodes of the water conservancy project and the potential mode to generate stress superposition comparison data, and iteratively adjusting the key nodes according to a result to obtain adjusted stress nodes; constructing a prediction model based on the adjusted stress node and the potential mode, performing operation trend prediction, and generating an operation trend prediction result of the water conservancy project; the high-precision and high-adaptability water conservancy project operation trend prediction method is realized.

The invention provides a non-invasive nerve regulation and control device. The non-invasive nerve regulation and control device comprises an optical fiber, an optical fiber fixing device arranged at one end of the optical fiber, a laser light source arranged at the other end of the optical fiber and a photoelectric conversion material positioning and injecting assembly. The photoelectric conversion material positioning and injecting assembly is used for injecting a photoelectric conversion material into a specified solution injection point; the photoelectric conversion material is powdery and comprises nanoparticles capable of converting near-infrared light into electric signals, and the photoelectric conversion material is dispersed in normal saline so as to be injected into biological tissues; the laser light source irradiates laser in a near-infrared band to an area where a photoelectric conversion material injection point is located, so that the laser is converted into an electric signal through the photoelectric conversion material, and the electric signal stimulates an area where a solution injection point is located. The non-invasive nerve regulation and control device has the advantages of non-invasiveness, high efficiency, system uniqueness, stability and programmable control, can realize accurate regulation and control of neurons and neural circuits, and has a wide application prospect.

The invention discloses an operation and maintenance knowledge graph construction method, a track operation and maintenance method and a related device, parameter initialization of a BiRTE model is adopted when a PRGC model is trained, so that the PRGC model has the stability of the BiRTE model in relation extraction, the accuracy of operation and maintenance knowledge triple extraction is ensured, and the operation and maintenance knowledge graph construction method is suitable for the track operation and maintenance. A multi-task learning model is adopted to filter noisy operation and maintenance knowledge triads, noise interference existing in the operation and maintenance knowledge triads is solved, and therefore it is guaranteed that the accuracy and robustness of the constructed operation and maintenance knowledge graph are good.

The invention provides a constant-current power supply unit for an instantaneous high-power load, relates to a system composition and a principle of a novel constant-current power supply unit based on a super capacitor, belongs to the field of power supply system design, and aims to provide a general scheme for solving the problem of power supply of the instantaneous high-power load on a satellite platform. The power supply unit is mainly formed by connecting a constant-current charging module, a super capacitor module and a constant-current discharging module in series. Wherein the super capacitor module is used as an energy power container, the constant-current charging module is used for realizing isolation between a capacitor and a power bus and charging management, and the constant-current discharging module is used for realizing isolation between the capacitor and a load and discharging management. The three modules are integrated into a whole and are externally connected with a bus and a load power supply, and constant-current power supply for an instantaneous high-power load can be realized by utilizing four led-out control pins.

The invention discloses a two-stage space-time diagram network and multi-source information fusion time sequence probability prediction method and device, and relates to the technical field of artificial intelligence and big data analysis. The method comprises the following steps: acquiring historical wind speed sequence data and corresponding target variable sequence data; preprocessing the data, and constructing a training sample according to a preset time sliding window; constructing a time sequence probability prediction framework of the two-stage space-time diagram network and multi-source information fusion; based on the fluctuation correlation of the historical sequence data, constructing an adjacent matrix between nodes; inputting the training sample and the adjacent matrix between the nodes into a wind speed prediction model, training the model through a designed threshold perception loss function of a wind speed-power nonlinear relationship, and outputting a multi-node wind speed prediction probability of a first stage; and inputting the multi-node wind speed prediction probability and the multi-source environmental factor data into the gradient boosting tree model for second-stage prediction, and outputting a multi-node wind power prediction result. According to the invention, prediction errors can be reduced.

The utility model relates to a high-precision radioactive waste liquid solid suspended particle filtering device, and relates to the field of radioactive waste liquid treatment in the nuclear energy technology. The utility model relates to a high-precision radioactive waste liquid solid suspended particle filtering device, which comprises: a filter, which is internally provided with a plurality of filtering membrane tubes and is used for intercepting and removing solid suspended particles in a turbid liquid to be filtered to generate a filtered clear liquid; the slag storage tank is used for collecting and discharging slag liquid generated after filtration of the filter; the gas-liquid mixer is used for mixing the blowback gas with the filtered clear liquid to form a gas-liquid mixture; a high-precision fiber demister is arranged in the gas-liquid separator, and the gas-liquid separator is used for removing water mist from the exhausted gas and exhausting the gas to a ventilation system. Solid suspended particles in the turbid liquid to be filtered can be effectively intercepted and removed, and the cleanliness of the filtered clear liquid is ensured.

The invention discloses a mountainous area bridge girder erection machine transverse moving system and method, and the system comprises a scaffold supporting module which is arranged on the ground and is located between a bridge pier and a second extension section; the temporary supporting modules are detachably connected with the scaffold supporting modules, the multiple temporary supporting modules are arranged in the transverse direction, and the temporary supporting modules are equal to the beam pieces in height and detachably connected with the beam pieces. The bridge erecting machine transverse moving module is arranged on the temporary supporting module; and the bridge girder erection machine transverse moving module moves on the beam pieces and the temporary supporting module so that the bridge girder erection machine can move to the position above a bridge pier located outside the second tunnel. By assembling the temporary supporting module and the scaffold supporting module between the bridge pier and the second extension section, the bridge girder erection machine can directly move to the position above the bridge pier outside the second tunnel, so that the bridge girder erection machine does not need to penetrate through the first tunnel and the second tunnel, time is greatly saved, and during the transfer period of the bridge girder erection machine, the construction efficiency is greatly improved. And the first tunnel and the second tunnel can be used as transportation channels for transporting materials required by construction, so that the overall construction efficiency is further improved.

The utility model relates to a trolley, belongs to the technical field of construction assistance, and particularly relates to a multifunctional trolley which comprises a walking chassis, a walking trolley body support is fixedly connected to the upper surface of the walking chassis, a pulley support is fixedly connected to the top end of the walking trolley body support, a crane beam is arranged on the pulley support, and an electric hoist is arranged on the crane beam. An electric control box is arranged on the walking vehicle body bracket; the heavy formwork can be rapidly and safely moved from one position to another position, the formwork installation process is greatly simplified, manpower and time are saved, labor and time needed by traditional manual operation are avoided, the material transportation efficiency is improved, and the problem that when a bridge concrete anti-collision wall is constructed, the construction efficiency is greatly improved is solved. The problems that in the prior art, workers need to be matched with a crane for formwork installation, the number of reinforcing accessories is large, the installation time is long, construction period and cost control is not facilitated, and therefore the construction efficiency of the concrete anti-collision wall is low are solved.

The utility model relates to the technical field of agricultural machinery, and discloses a stubble cleaning device for agricultural machinery engineering, which comprises a protective shell, an adjusting mechanism is arranged in the protective shell, and a dust falling mechanism is arranged above the protective shell; the adjusting mechanism comprises an auxiliary frame, the auxiliary frame is located in the protective shell, a servo motor is fixedly connected to the upper surface of the protective shell, a threaded rod is fixedly connected to the power output end of the servo motor, a fixing block is fixedly connected to the inner wall of the protective shell, and the bottom end of the threaded rod penetrates through the protective shell and extends into the fixing block. According to the stubble cleaning device for the agricultural machinery engineering, the dust falling capacity is achieved, smoke dust generated in the stubble cleaning process can be degraded, the situation that operators inhale the stubble dust for a long time and harm the body health is avoided, meanwhile, the stubble cleaning depth can be conveniently adjusted according to needs, the applicability of the stubble cleaning device for the agricultural machinery engineering is improved, and the stubble cleaning device is suitable for popularization and application. And the use effect of the stubble cleaning device for agricultural machinery engineering is improved.

The present invention discloses a safety valve test pressure balance integrated device, including a base, two accumulators and a hydraulic cylinder are respectively arranged on the upper end of the base, pipe joints and a bleeder are respectively arranged on the left and right sides of the lower end of the hydraulic cylinder, a pressure gauge, a safety valve and a first straight-through stop valve are respectively arranged on the upper end of the hydraulic cylinder, a pipeline connected to the hydraulic cylinder is arranged on the upper end, the other end of the pipeline away from the hydraulic cylinder is connected to the accumulator return pipe arranged at the lower end thereof, a connecting device is symmetrically arranged on the upper end of the accumulator return pipe, a second straight-through stop valve is arranged on the other end of the pipe joint away from the hydraulic cylinder, a piston is arranged in the hydraulic cylinder, and a piston rod is installed in the piston. The beneficial effects of the present invention are as follows: a plunger-type hydraulic cylinder is provided, which can make the transmission more stable and have a certain impact resistance, and two accumulators are provided at the same time, which can directly increase the upper limit of energy storage, and the accumulator, the hydraulic cylinder and various auxiliary components are integrated together, which can make the whole device more systematic and stable.

The invention belongs to the technical field of fertilizers and relates to a compound fertilizer for black beans as well as a preparation method and application thereof. The compound fertilizer comprises a basic fertilizer, a microbial fertilizer and a trace element fertilizer, and a preparation method of the microbial fertilizer comprises the following steps: treating lignite with sophorolipid and trehalose lipid, treating turf with surfactin, mixing the treated lignite and turf, and then inoculating bacillus subtilis and rhizobium to obtain the microbial fertilizer. Through a unique dual mechanism of carrier synergism and fungicide function complementation, the dry matter cumulant and nitrogen cumulant of the overground part of the black bean are remarkably increased, and finally the yield and quality are remarkably improved.

The embodiment of the invention relates to the technical field of foundation construction, and discloses a two-way cutting mixing pile machine and method for quickly connecting and disconnecting a drill rod, and the two-way cutting mixing pile machine comprises a walking device used for driving the device to move on a foundation; the tower frame is arranged on the walking device, and the tower frame is used for providing support; and a connecting device. According to the bidirectional cutting mixing pile machine and method for quickly connecting and disconnecting the drill rods, through the arrangement of the first drill rod and the second drill rod which are detachable and connectable, when the preset depth of a mixing pile is large, the completion of construction can be ensured through the assembly relay of the two-section type first drill rod and the second drill rod, and certainly, the construction efficiency is improved. Due to the fact that the two-section type first drill rod and the two-section type second drill rod are assembled and constructed, the height of the portions, exposed out of the foundation, of the first drill rod and the second drill rod after the first drill rod and the second drill rod are assembled can be controlled, for example, the stipulation that the height is not larger than 35 m can be met, safety is improved, and meanwhile the stipulation of related policies is met.

The utility model discloses a tubular heat exchanger flange end face flatness continuous detection device which comprises a fixing assembly connected with a supporting bearing, the supporting bearing is installed on a rotating shaft, and a sliding guide rail is vertically installed on the rotating shaft. A ball screw is installed on the sliding guide rail, a movable sliding block is installed on the ball screw, and the bottom of the movable sliding block is connected with a connecting rod used for clamping an external measurer. And rotating power pieces are respectively arranged at one end of the ball screw and the top end of the rotating shaft. Therefore, the device can be applied to flatness detection of a heat exchanger end face flange which is internally provided with a heat exchange pipe and cannot be fixed and positioned by installing an inner supporting mechanism at the pipe diameter of the flange, and continuous measurement of the radial flatness of the flange is realized.

The utility model discloses a cable erecting and supporting device, which comprises a device box, a mounting cylinder I and a mounting cylinder II which are symmetrically and fixedly arranged at the top of the device box, and a lifting movement adjusting assembly arranged in the device box, the lifting movement adjusting assembly comprises guide sliding grooves symmetrically formed in the inner walls of the two sides of the device box, second inclined blocks vertically arranged in the guide sliding grooves in a sliding mode, a connecting frame horizontally and fixedly arranged on the lower sides of the second inclined blocks and universal wheels rotationally arranged on the lower side of the connecting frame, and the universal wheels are arranged in a rectangular array mode. And a cable can be put in from one side of the upper bracket and one side of the lower bracket, the practicability of the device is improved, the cable does not need to be cut or detached, and the cable lifting and supporting height can be adjusted. The utility model belongs to the technical field of cable erection, and particularly relates to a cable erection supporting device which is convenient to adjust the supporting height, has both stability and mobility and can fix a cable without disassembly.

The invention relates to the technical field of preparation of lipid nanoparticles, and particularly discloses proteinized lipid nanoparticles as well as a preparation method and application thereof. Dipalmitoyl phosphatidylcholine, cholesterol, triton X-100, absolute ethyl alcohol, a sodium citrate buffer solution and cell membrane protein are recombined to form cell membrane protein lipidosome with negative charges on the surface; the preparation method comprises the following steps: recombining 4-(N, N-dimethylamino) butyric acid (dilinoleyl) methyl ester, absolute ethyl alcohol, plasmids, triton X-100 and a sodium citrate buffer solution to obtain lipid nanoparticles with positive charges; and wrapping cell membrane protein liposome on the surface of the lipid nanoparticle by utilizing mutual attraction of positive and negative charges to obtain the proteinized lipid nanoparticle. The proteinized lipid nanoparticles can realize gene targeted delivery of specific cells such as suspension cells and primary cells, reduce non-specific uptake, and can be used as a gene delivery carrier.

This invention belongs to the field of daily chemical products technology, specifically relating to an antibacterial care liquid and its preparation method. It is processed from main ingredients and auxiliary ingredients. The auxiliary ingredients include the following components by weight percentage: purified water 89.30%, silver ions 3%, honeysuckle extract 1.2%, wild chrysanthemum extract 1.2%, purslane extract 1.2%, clover extract 1.0%, gentian root extract 1.0%, hyaluronic acid 0.5%, carbomer 0.8%, and triethanolamine 0.8%. The main ingredient is American cockroach extract, and the weight ratio of the main ingredient to the auxiliary ingredients is 3:100. The product of this invention has the effects of repairing skin cells and slowing down skin aging. It can solve the problems of dry and loose skin, and at the same time, it can resist acne and pimples, remove acne marks, lighten scars, and make the skin moist, shiny, and elastic. It also has a good repairing effect on various wounds such as ultraviolet rays and radiation burns, as well as bedsores and frostbite.

The utility model discloses an automobile belt pulley electroplating device which comprises an electroplating pool, a placing plate, a lifting motor, a rotating roller, a sliding block, a stand column, a supporting column, a fixing plate and a sealing plate, the placing plate is arranged on one side of the electroplating pool, the lifting motor is arranged on the upper side of the placing plate, and the rotating roller is arranged on the side, close to the electroplating pool, of the lifting motor. A sliding block is arranged on the lower side of the rotating roller, a sliding groove is formed in the connecting position of the sliding block and the supporting plate, a stand column is arranged on the side, away from the containing plate, of the sliding block, a supporting column is arranged on the side, away from the sliding block, of the stand column, a fixing plate is arranged on one side of the supporting column and is a circular plate, and a sealing plate is arranged on the fixing plate. The size of the sealing plate is matched with the size of the fixing plate. The belt pulley is clamped and fixed through the adjusting plate and the fixing plate, so that the stability of the belt pulley is improved, and meanwhile, the condition that other positions of the belt pulley are electroplated is avoided.

The utility model relates to a splicing and inserting type coagulation reaction grid, in particular to a flocculation grid for water treatment, which is of a net-shaped structure formed by vertically and horizontally inserting hollow pipes, and frames are arranged on the edges of the net-shaped structure. The transverse pipelines are provided with holes matched with the longitudinal pipelines, and a stable framework is formed through precise insertion. Compared with the prior art, the flocculation grid has the remarkable advantages that the stability of the flocculation grid is greatly improved through the interpenetrating structure, and the flocculation grid can resist impact of complex water flow; the porosity can be flexibly changed by adjusting the number, spacing and the like of the pipelines to adapt to different water quality treatment requirements; the hollow pipe design saves materials, is light in weight and convenient to install and transport, and the pipeline can be made of metal or plastic, so that the performance and the cost are further optimized. The flocculation grid is applied to a flocculation basin, can effectively increase turbulent fluctuation of water flow and accelerate colloid flocculation, and has a good application prospect in the field of water treatment.

The utility model discloses a hub with an end cover provided with a sealing plug, belongs to the technical field of hubs, and aims to solve the problems that the connection between the hub end cover and the sealing plug is mostly buckle connection, the sealing plug is inconvenient to disassemble, and the stability of the connection mode is poorer. An end cover body is fixed to the surface of one end of the hub body, a sealing cover is inserted into an inner cavity of one end of the end cover body, four fixing holes distributed at equal intervals in a surrounding mode are formed in the inner circumferential face of the end cover body, and four first threaded rods distributed at equal intervals in a surrounding mode are rotationally connected to an inner cavity of the sealing cover. The peripheral face of the first threaded rod is in threaded connection with a threaded sleeve, and an inserting rod is fixed to one end of the threaded sleeve. According to the device, the sealing cover can be quickly mounted and dismounted, and meanwhile, the sealing cover has certain stability after being mounted, so that the practicability of the device is improved.

The utility model provides a round head movable head cosmetic brush, include: handle, set up the connecting seat of handle upper end and set up the brush head subassembly on the connecting seat, the brush head subassembly includes the cup shape brush head seat of accommodating brush bundle and the brush bundle fixed in it, the brush head seat is connected with the connecting seat through the pivot hinged component along the transverse pivot, is equipped with the positioning mechanism between both, can be in multiple angular position to the brush head subassembly is positioned stably, pivot hinged component is by fork support, ear seat and the shaft pin through it constitute, positioning mechanism adopts the gear ring structure of intermeshing and forms the angle positioning and the damper of grade type, sets up the circular arc transition surface and the annular compression ring in the brush head seat to firm brush bundle. This cosmetic brush can adjust the brush head angle according to the different area of face, uses the nature of close, and positioning is stable, and brush bundle can be dismantled and washes, and the structure is stable, holds comfortably, significantly promotes the convenience and the makeup effect uniformity of makeup.

The invention provides a foam extinguishing agent multi-component composition as well as a preparation method and application thereof. The foam extinguishing agent multi-component composition comprises the following components: 31-150 parts of a short-chain fluorocarbon surfactant, 26-52 parts of an organic silicon surfactant, 35-100 parts of a foaming agent, 12-32 parts of a cross-linking agent, 15-20 parts of a gelling agent and 5-20 parts of a foam stabilizer. The range and grade of fire or explosion accidents caused by battery thermal runaway of the lithium iron phosphate battery energy storage system are reduced to the maximum extent, and casualties and property loss are reduced.

The invention discloses a piezoelectric abutment material capable of resisting bacteria and promoting soft tissue healing as well as a preparation method and application of the piezoelectric abutment material. The antibacterial and soft tissue healing promoting piezoelectric abutment material provided by the invention is high in operability in clinical application, shows excellent piezoelectric responsiveness and electrical stability in the application process of the piezoelectric abutment material, realizes synergistic toughening and reinforcement of the material, and has good application prospects. The mechanical property of the material is also considered while soft tissue closure promotion and electrical characteristics are considered, so that the clinical use feasibility of the material is ensured, and clinical prevention of periimplant diseases and long-term stability of the implant are facilitated.

The invention discloses a nitrogen-rich hollow carbon nanosphere filled Prussian blue analogue composite burning rate catalyst, which is prepared by the following steps: reacting tetraethyl orthosilicate, resorcinol, melamine, formaldehyde and ammonia water in a mixed solvent of water and ethanol to generate nitrogen-rich carbon spheres, then calcining and etching to form nitrogen-rich hollow carbon nanospheres, and finally preparing the nitrogen-rich hollow carbon nanospheres into the Prussian blue analogue composite burning rate catalyst. And respectively filling transition metal nitrate and potassium ferricyanide by using a two-step ultrasonic method, and generating the Prussian blue analogue in the cavity. The nitrogen-rich hollow carbon nanospheres are filled with the Prussian blue analogues through a two-step ultrasonic method, the Prussian blue analogues are limited to the nanometer size through the confinement effect of the nitrogen-rich hollow carbon nanospheres, and meanwhile the synergistic catalysis effect of the nitrogen-rich hollow carbon nanospheres and the Prussian blue analogues is enhanced; the obtained composite burning rate catalyst has a good catalytic effect on AP.

The application discloses a new energy county area power grid frequency voltage cooperative enhancement system and method, relates to the technical field of new energy power grid. The method comprises the following steps: collecting real-time operation parameters of the county area power grid for mode recognition to obtain a current operation scenario label; calling frequency regulation rule fragments and voltage regulation rule fragments matched with the current operation scenario label to construct an initial regulation rule sequence; performing multi-domain constraint calculation on the sequence to establish a frequency-voltage linkage coupling relationship and generate an optimized regulation rule sequence; calculating an influence echo index between regulation actions, and selecting an inhibition type replacement rule fragment to correct the optimized regulation rule sequence when the influence echo index exceeds a preset echo threshold; and performing consistency review on the corrected regulation rule sequence, and triggering a rollback and a replacement branch when the consistency review fails, wherein if the replacement branch is unavailable, a minimum offset solution is performed to generate a final regulation rule sequence. The application significantly improves the stability and reliability of new energy county area power grid operation.

The present invention relates to the technical field of mobile racks, and specifically discloses an exterior wall decoration mobile rack, which also includes a mobile mechanism symmetrically fixed to the exterior wall of a building, a load-bearing plate fixed to a steel rope is slidably connected between the mobile mechanisms, a control box is arranged on the load-bearing plate, the mobile mechanism includes a first plate and a second plate which are sequentially arranged from left to right, the inner sides of the first plate and the second plate are both provided with grooves, the centers of the grooves are fixed with protrusions, a pneumatic connection mechanism is fixedly connected between the second plate and the building body and between the first plate and the second plate, the tops of the first plate and the second plate are both fixedly connected with spring clip buckles, the bottoms of the first plate and the second plate are both fixedly connected with clip grooves, the pneumatic connection mechanism includes a force-bearing rod, an air pump installed inside the force-bearing rod, and a sealing air cushion connected to the air pump, the sealing air cushion is detachably connected with an air outlet pipe, the air pump and the motor are both electrically connected to the control box, and the device solves the problem that a traditional exterior wall mobile rack has a poor effect on the entire exterior wall of the building due to its short length.

The device comprises a center plate and a plurality of supporting plates, a set of oppositely-arranged bearing columns are arranged at the gravitational potential energy high position of the center plate, the center plate is connected with the set of supporting plates in the width direction, the minimum included angle between the supporting plates is 60 degrees, and the supporting plates are connected with the bearing columns in a staggered mode. A first round hole is formed in the center of the center plate. The structure of the device is of a multi-triangle clamping structure, when a multi-time beam structure is clamped, the supporting plate and the bearing column of the device are of a triangular structure, so that the device has stability, when the main beam is clamped, the main beam is firstly placed in the first round hole, at the moment, the main beam clamped by the first round hole is extruded by the bearing column in three directions to achieve stability, and the main beam is clamped by the bearing column. And meanwhile, the diameter of the second circular hole is smaller than that of the first circular hole, so that the second circular hole tightly hoops the main beam.

The invention discloses a carbon-coated copper-nickel bimetallic catalyst as well as a preparation method and application thereof. According to the technical scheme, the carbon-coated copper-nickel bimetallic catalyst comprises active components Cu and Ni and a carbon carrier coating Cu and Ni, the loading amount of Cu is 20.23-23.53% of the total weight of the catalyst, the loading amount of Ni is 2.13-3.86% of the total weight of the catalyst, and the balance is the carbon carrier; according to the catalyst provided by the invention, the reaction activity of the catalyst can be effectively improved, it is ensured that the catalyst has high reaction activity in hydrogen production through ethanol water phase reforming, long-time continuous and stable operation of hydrogen production through ethanol water phase reforming can be ensured, and the catalyst belongs to the technical field of catalysts.

The invention relates to a wireless charging device. The wireless charging device comprises a wireless charging module, an air draft heat dissipation module, a temperature detection module and a control module. The air draft heat dissipation module is used for discharging heat generated in the wireless charging process in an air draft mode. The temperature detection module is used for detecting temperature parameters in the charging process; the control module is in communication connection with the temperature detection module and the air draft heat dissipation module and used for adjusting the working power of the air draft heat dissipation module according to the temperature parameters. The wireless charging module charges a charging terminal, and the temperature detection module continuously collects temperature parameters in the charging process and transmits data to the control module in real time; and the control module adjusts the working power of the air draft heat dissipation module according to the temperature parameter, so that the temperature in the charging process is always maintained in a preset interval, and the temperature of the wireless charging equipment is adaptively adjusted. The current limiting problem caused by high temperature during wireless charging and the abnormal charging condition caused by low temperature are effectively solved.