30results about How to "Increase use" patented technology

The invention relates to the technical field of biology, and discloses a novel polyurethane plastic degrading enzyme and application thereof. The amino acid sequence of the novel polyurethane plastic degrading enzyme MBX1 provided by the invention is as shown in SEQ ID No. 1; the sequence of the coding gene is as shown in SEQ ID No.2. Escherichia coli engineering bacteria constructed by using the coding gene sequence can efficiently express the novel polyurethane plastic degrading enzyme. The method specifically comprises the following steps: cloning an MBX1 gene; the preparation method comprises the following steps: constructing a pET28a-MBX1 expression vector; expression, purification and functional verification of MBX1 protein; the degradation rate of the novel polyurethane plastic degrading enzyme to polyether polyol type polyurethane within 8 hours at the temperature of 50 DEG C and the pH value of 7.5 is 98%. The novel polyurethane plastic degrading enzyme can be applied to biological treatment and related research and development of polyurethane plastics, and has a huge application prospect in biodegradation of the polyurethane plastics.

The invention discloses an insulator convenient to connect with a cross arm, and relates to the technical field of insulators, the insulator comprises an insulating part, a steel foot fixedly connected to the bottom of the insulating part and a mounting seat with a mounting hole, the steel foot is rotatably connected to the mounting seat through a hinged support, and the axial direction of the hinged support is parallel to a wire slot in the top of the insulating part. A lantern ring is arranged on the hinged support in the axial direction of the insulating part in a relatively rotating mode, a first positioning ring and a second positioning ring are fixedly connected to the lantern ring, and when the insulating part is vertically installed, the first positioning ring and the mounting hole are coaxial; and when the insulating part is installed at an inclined angle alpha, the second positioning ring and the mounting hole are coaxial. The mounting angle of the insulating part can be changed through the hinged support, the first positioning ring, the second positioning ring and the lantern ring are arranged, the insulating part can be locked in a vertical state or an inclined state, and the application range is widened. And the connection between the mounting seat and the cross arm and the angle locking of the insulating part can be realized only through a group of bolt connection pairs, so that the mounting is very convenient, and the connection is firm.

The application discloses a modified asphalt for water-based drilling fluid and a preparation method thereof. The modified asphalt for water-based drilling fluid comprises the following raw material components: pretreated reducing slag, acid anhydride modifier, initiator, stabilizer, modifier, modification aid and performance regulator. The modifier is low-grade sulfur. The pretreated reducing slag comprises the following raw material components in weight: inferior reducing slag: 100 parts; oil sand asphalt: 20-60 parts; and pretreatment agent: 0.1-2 parts. The high-softening-point asphalt with high softening point and good hydrophilicity is obtained by modifying the difficult-to-handle inferior reducing slag and oil sand asphalt, and is suitable for being used as main material for producing asphalt water-based drilling fluid.

The present invention relates to a reinforcing material (1) made from the following: a unidirectional reinforcing layer (2) formed by one or more carbon reinforcing threads (3) combined with a polymer fiber layer (4, 5) on each side thereof, wherein the polymer fiber layer is selected from a non-woven web, the polymer part of the reinforcing material accounting for between 0.5% and 10% of the total weight of the reinforcing material (1) and preferably between 2% and 6% of its total weight, the unidirectional reinforcing layer (2) comprising one or more reinforcing threads (3) individually twisted according to a twist of 3 to 15 rpm, preferably 6 to 12 rpm.

The application discloses a kind of safety belt electric cleaning device for electrical equipment, it is related to electromechanical equipment technical field, technical scheme is, including insulating shell, insulating rope, insulating support rod, multiple insulating balls are fixedly installed on the insulating rope, recycling passage, communication passage, air injection passage, sponge barrel are equipped in the inside of insulating shell, the inside of sponge barrel is equipped with multiple evenly distributed annular protrusions, six struts are further equipped in the inside of sponge barrel and are arranged according to annular array with sponge barrel as center, fixed end cap is fixedly connected to one end of the strut, movable end cap is installed to the other end of the strut, dirt on the surface of electrical equipment is dissolved by cleaning fluid and is carried away by insulating rope and insulating ball, avoid dirt and insulating cleaning fluid to splash to the surface of electrical equipment around, all the devices are made of insulating material, can be charged cleaning to electrical equipment.

The present invention relates to the technical field of metal hydrogen embrittlement evaluation test, in particular to a hydrogen embrittlement test method and device for slow strain tensile test evaluation, comprising a test bench, a traction component and a servo motor, wherein the traction component is fixedly installed above the test bench, the traction component comprises a screw, a slide rail, a slider and a fixed plate installed on the slider, the servo motor is fixedly installed above the traction component, and the output shaft of the servo motor is fixedly connected to the end of the screw in the traction component through a coupling, and a traction disc is symmetrically installed at the middle of the fixed plate in the traction component and the upper part of the test bench, the present invention utilizes a detachable and replaceable traction disc as a fixed component for tensile test detection materials, and provides a mutually independent and stable clamping method for a variety of test materials, thereby avoiding the limitations of the current traditional tensile test platform on material selection and improving applicable scenarios and uses.

The invention relates to an aluminum composite material containing metal and / or ceramic and graphite, which is formed by compounding a carbon-graphite material and an aluminum material, has high strength, high heat conductivity coefficient and low thermal expansion coefficient, and can be widely used in industry, and provides a technology for developing the material. The present invention relates to an aluminum composite material containing a metal and / or a ceramic and graphite and a method for producing the composite material, the aluminum composite material containing a metal and / or a ceramic and graphite being obtained by compositing a molded body using a melt of an aluminum metal or an aluminum alloy, a metal and / or ceramic and graphite-containing aluminum composite material which is formed from a material obtained by adding a silica-based binder to the outside of a mixed powder that contains a graphite powder that is not amorphous and a metal powder and / or a ceramic powder, and which has a bending strength of 90 MPa or more. The thermal conductivity in either the XY direction or the Z direction is 240 W / m.K or more, and the thermal expansion coefficient in either the XY direction or the Z direction is 6.0 ppm / K or less.

The utility model discloses a powder coating structure for a color steel plate, which comprises a steel plate frame, a support frame is fixed inside the steel plate frame, rock wool fillers are arranged inside the steel plate frame and on the outer side of the support frame, and the powder coating structure for the color steel plate is characterized in that the support frame is designed into an X-shaped structure. The supporting frames are distributed in the steel plate frame at equal intervals, so that the overall strength of the color steel plate is improved, the deformation probability of the color steel plate is reduced, and the color steel plate has high weather resistance and high chemical stability due to the fluorocarbon paint layer on the color steel plate, is suitable for being used in an acid rain corrosion environment and can be used in a severe environment, and the service life of the color steel plate is prolonged. And due to the gray aluminum powder graphite alkyd paint layer on the color steel plate, the color steel plate has the advantages of good mechanical property, high hardness and good wear resistance, the probability that the paint surface is damaged by foreign objects is reduced, the color steel plate is well protected, and the service life of the color steel plate is prolonged.

The application relates to a modified polyimide pipe and a preparation method and application thereof. The preparation method of the modified polyimide pipe comprises the following steps: modifying graphite oxide powder with an organic amine to obtain graphite oxide powder with amino groups; modifying the graphite oxide powder with amino groups with a silane coupling agent and / or a dianhydride to prepare modified graphite oxide powder; mixing the modified graphite oxide powder with a polyamide acid solution to prepare a mixed solution; coating a core material with the mixed solution, then performing imidization reaction and core extraction to prepare the modified polyimide pipe. The preparation method of the modified polyimide pipe can improve the mechanical properties and lubricating properties of the polyimide, and the outer surface is smooth.

The wastewater recycling system comprises a water storage tank and a booster pump, a water inlet of the water storage tank is connected with the direct water dispenser through a wastewater pipe, a water outlet of the water storage tank is connected with a water outlet pipe, the booster pump is arranged on the water outlet pipe, and a three-way valve is arranged at the outlet end of the booster pump. A first end of the three-way valve is communicated with a water outlet of the water storage tank through a water outlet pipe, a second end of the three-way valve is connected with a ground water device through a first water outlet branch pipe, a third end of the three-way valve is connected with a basement water device through a second water outlet branch pipe, and a power input end of the booster pump is connected with a power source through a remote switch module. Waste water in the water storage tank can be used in a split mode, the purposes of the waste water can be distributed and expanded according to needs, the waste water utilization rate is increased, water is saved, an intelligent terminal can be adopted to remotely control starting and stopping of work of the booster pump, work information of the booster pump can be collected, the automation performance is high, labor input is reduced, and waste water recycling operation is simplified.

The utility model provides an automatic wood feeding machine, belongs to the technical field of wood feeding machines, and solves the technical problems that an existing wood feeding device is generally poor in structural stability, insufficient in motion control precision, difficult to achieve multi-component cooperative motion, low in production efficiency and the like. Comprising a rack assembly, a driving assembly, a first step feeding assembly arranged in an inclined mode and a second step feeding assembly arranged in an inclined mode, the driving assembly is arranged on the rack assembly, and the first step feeding assembly and the second step feeding assembly are arranged in a staggered mode; the first stepped feeding assembly and the second stepped feeding assembly are arranged on the rack assembly in a sliding mode in the same inclined direction, and the driving assembly is located below the first stepped feeding assembly and the second stepped feeding assembly and is in transmission connection with the first stepped feeding assembly and the second stepped feeding assembly. The wood feeding device is stable in supporting and accurate and coordinated in transmission, the wood feeding efficiency is improved, and diversified production requirements can be met.

The invention discloses a DEM and Geomorphs method-based island microscopic landform remote sensing classification method, and relates to the technical field of island landform classification, and the method comprises the steps of island image and water depth data acquisition, island underwater DEM model construction, microscopic landform type division and classification result verification. And establishing a DEM model corresponding to the island reef, extracting each microscopic landform feature corresponding to the island reef, performing division to obtain the corresponding microscopic landform type of the island reef, verifying the correctness of division of the corresponding microscopic landform type of the island reef, and performing corresponding classification adjustment so as to realize efficient island reef microscopic landform remote sensing classification. And corresponding island development and utilization are executed, so that the precision of island landform classification is improved, the island landform classification efficiency is improved, and ecological protection and resource management are facilitated.

The invention relates to Serratia marcescens and its application in preventing and controlling peach borer. The Serratia marcescens is deposited in the General Microbiological Center of China Microbiological Culture Collection Administration, with the deposit number of CGMCC No.29745.

The utility model relates to the technical field of folding unmanned aerial vehicles, in particular to a portable folding multipurpose unmanned aerial vehicle. Comprising a machine body, a control cabin detachably connected with one end of the machine body and a plurality of folding catapult arms rotationally connected with the machine body, and the other end of the machine body is detachably connected with a functional cabin; an engine arm connecting part, a battery box and a functional cabin connecting part are sequentially arranged in the engine body and are coaxially and sequentially connected; the folding catapulting machine arm comprises a machine arm rod, and the machine arm rod is rotationally connected to the machine arm connecting part through a catapulting assembly. And one end, connected with the functional cabin connecting part, of the battery box is coaxially provided with a rotating motor capable of locking the folding catapult arm or releasing the folding catapult arm. The folding catapult arms are matched with the catapult assembly to facilitate contraction and release of the folding catapult arms, the function cabin can increase the purposes of the unmanned aerial vehicle, battery replacement is conducted from one side of the function cabin, and it is not needed to replace batteries from the side of the control cabin like a traditional mode.

The application provides an API monitoring method and device in an energy internet marketing service system and a storage medium, the method comprising: acquiring all APIs that can be called in the energy internet marketing service system, and constructing a two-dimensional dependency matrix based on the dependency relationship of the APIs; monitoring the calling of all the APIs, and generating a calling record for each calling; generating an API calling heat map based on the calling records of all the APIs, and marking the average value of the calling response time of each API in the API calling heat map; determining a bottleneck API affecting the performance of the energy internet marketing service system based on the two-dimensional dependency matrix and the API calling heat map, and processing the bottleneck API. The application determines the bottleneck API affecting the performance of the energy internet marketing service system based on the two-dimensional dependency matrix and the API calling heat map, solves the problem that the calculation resource for determining the bottleneck API is large and the accuracy is not high, and thus the system performance can be recovered as soon as possible.

The utility model discloses an electric power overhaul safety protector which comprises a safety protector body, a telescopic sound-light alarm device is arranged in the safety protector body, and a first reminding structure is arranged on the front face of the safety protector body. Second reminding structures are arranged on the portions, on the upper side and the lower side of the first reminding structure, of the safety protector body, a tool groove is formed in the portion, on the back of the first reminding structure, of the safety protector body, and first telescopic handrail mechanisms are arranged on the two sides of the safety protector body; and the end part, far away from the safety protector main body, of the first telescopic handrail mechanism is connected with a second telescopic handrail mechanism. The safety protector has the advantages of warning non-staff and guaranteeing the safety of the staff.

The embodiment of the application belongs to the technical field of packaging bags, and relates to a food packaging bag, which comprises an outer bag and an inner bag. The outer bag is a breathable bag, and the inner bag is a sealed bag. The inner bag is arranged in the outer bag and detachably connected with the outer bag through a first connecting structure. The technical scheme provided by the application can help better realize food preservation.

The application relates to an intelligent reflector surface phase shift optimization method and system based on unsupervised learning, belonging to the field of communication technology. A base station, a user and an intelligent reflector surface are included. The direct link between the base station and the user is blocked. The input data is indirect cascade channel state information. The data preprocessing step is to convert a one-dimensional channel state information vector into a two-dimensional complex matrix, split the real part and the imaginary part, and additionally add an absolute value part to form three-channel data as the input of a neural network. The whole network is composed of two convolution-attention blocks, a flattening layer and multiple fully connected layers. The attention mechanism selects a squeeze-and-excitation networks network. The model adopts an unsupervised learning method without labels. The loss function is defined as the negative value of the spectral efficiency. Considering that the output of the network needs to meet the phase shift constraint of the IRS, a penalty term is additionally added in the loss function to limit the output. The application has high calculation efficiency, and the phase shift optimization result has certain reference value.

This invention relates to the field of organic synthesis technology, specifically to an iodinated fatty acid ester, its preparation method, and its applications. The preparation method involves carrying out an iodination reaction of an unsaturated fatty acid ester in a mixed system of triphenylphosphine and elemental iodine. The preparation method of this invention is efficient, controllable, highly selective, and capable of generating stable iodinated fatty acid esters, thus expanding the application fields of iodinated polyunsaturated fatty acids.

The invention discloses a telescopic pin chain sliding gear type continuously variable transmission, comprising a connecting frame, a driving spline shaft and a driven spline shaft; the driving spline shaft and the driven spline shaft are arranged in parallel, and the driving spline shaft and the driven spline shaft are rotatably arranged on the connecting frame; speed regulating mechanisms are also arranged at both ends of the driving spline shaft and the driven spline shaft; the driving spline shaft is sleeved with two driving bevel wheels with cone surfaces facing each other. The beneficial effects of the invention are: the telescopic pin chain sliding gear type continuously variable transmission transmits power through the interaction between the telescopic pin and the contact part on the sliding gear, and the contact part between the telescopic pin and the sliding gear can select high pair or low pair transmission, while the traditional mechanical continuously variable transmission transmits power through friction, and the transmission mode is different. Therefore, the present scheme can theoretically transmit sufficiently large power under the condition of enhanced design, overcome the problem of limited power transmission of the traditional continuously variable transmission, and expand the use of the continuously variable transmission.

This invention discloses a baiting method for placing bait and a method for quantifying the absolute rodent density in farmland based on the bait positivity rate and the number of rodents caught by fence traps. The baiting method includes the following steps: A trap-based feeding system (TBS) is deployed in the sample plot. Starting from the fence of the TBS, double rows of 5m x 5m wax blocks are arranged, with each row of wax blocks 180m long and 4cm above the ground. The bait is placed for at least 4 days, and fresh bait is replaced daily. Multiple quadrats are evenly divided at equal intervals along the wax block baiting line, centered on the TBS. Daily checks are conducted to record whether the wax blocks in each quadrat are eaten and the weight of the replaced wax blocks eaten. The bait positivity rate is calculated, the number of rodents caught by the TBS is recorded, and the original rodent density D of the target sample plot is calculated using a formula. R This invention accurately quantifies the absolute rodent density within a sample plot, providing a reliable means for precise prediction and forecasting of rodent infestations in farmland.

The application discloses a roadway repairing machine and relates to the technical field of coal mines.The roadway repairing machine comprises a base, a support, a walking assembly, a first lifting driving element, an anchor breaking assembly and a gangue breaking assembly.The support is arranged on the base in a lifting manner to support the roof of the roadway.The walking assembly is arranged on the two sides of the base and can drive the roadway repairing machine to move.The first lifting driving element is arranged on the base and can drive the walking assembly to lift.The anchor breaking assembly is arranged on the support and can break the anchor of the roof of the roadway.The gangue breaking assembly is arranged on the base and can break the coal gangue.The roadway repairing machine simultaneously integrates the gangue breaking assembly and the anchor breaking assembly, so that the manpower is saved, the efficiency and safety of the roadway repairing of the coal mine are improved, the support can support the roof of the roadway in a lifting manner, the support plays a supporting role, and the functionality of the roadway repairing machine is enriched.

The utility model discloses a kind of tea making assembly matched with capsule coffee machine, including tea making cup, tea receiving cup and the first small teacup and second small teacup of separable and stacked in tea receiving cup, the bottom end of tea making cup is equipped with tea making chamber, the upper end of tea making chamber is equipped with filter screen, the center of filter screen is equipped with siphon column, the bottom end of siphon column is through the bottom end of tea making cup, the water inlet of siphon column is located in tea making chamber, the water outlet of siphon column is towards tea receiving cup, the bottom end in tea making cup is equipped with first magnetic ring, the inside of the upper end of tea receiving cup is equipped with second magnetic ring.The beneficial effects of the utility model are: the utility model is equipped with tea making cup, tea receiving cup and siphon column, can make capsule coffee machine realize tea making function, increase the use of capsule coffee machine, and through control program control hot water filling, utilize siphon phenomenon and automatically suck the tea water that is brewed into tea receiving cup, realize capsule coffee machine automatic tea making, and it is convenient to store, can improve user experience.

The present invention discloses a compass capable of drawing parallel lines, comprising a top fixing unit, a circle drawing unit and a line drawing unit, wherein the line unit and the circle drawing unit are both connected to the top fixing unit, the circle drawing unit can draw a circle, and the line drawing unit and the circle drawing unit can cooperate to draw parallel lines, the top fixing unit is provided with a hinged portion, the circle drawing unit comprises a rotating shaft leg and a circle drawing leg hinged to the hinged portion, the line drawing unit comprises a line drawing leg hinged to the hinged portion, a bracket connected to the bottom of the line drawing leg, a roller connected to the bottom end of the bracket, a second pen matched with the bracket, and a third tightening member connecting the bracket and the circle drawing leg. The device described in the present invention combines a compass with a parallel line drawing tool, and one device has two uses, which increases the use of the tool and makes it more convenient to use.

The invention discloses an oil-based hydrate nucleation inhibitor as well as a preparation method and application thereof. The preparation method of the inhibitor comprises the following steps: (1) heating furfural extract oil to a molten state, filling the furfural extract oil into a reaction kettle, introducing oxidizing gas, and carrying out oxidation heat treatment while stirring; (2) stopping the input of the oxidizing gas, replacing the oxidizing gas in the reaction kettle with shielding gas, and performing closed heat treatment on the material obtained in the step (1) under the shielding gas to obtain an oil-based inhibitor component; and (3) cooling the oil-based inhibitor component obtained in the step (2), placing the cooled oil-based inhibitor component in a solvent, and mixing the cooled oil-based inhibitor component with a light oil product to obtain the oil-based hydrate nucleation inhibitor. The oil-based hydrate nucleation inhibitor prepared by the method can obviously prolong the hydrate induction period and inhibit hydrate nucleation.

This invention provides a switched-capacitor converter and power conversion system, relating to the technical field of integrated circuits. The switched-capacitor converter includes an input terminal, a conversion module, and an output terminal connected in sequence. The conversion module includes a first capacitor branch, a second capacitor branch, and an interleaved cascaded structure connecting the first and second capacitor branches. The first and second capacitor branches each include a predetermined number of capacitors and switching transistors. The interleaved cascaded structure includes a predetermined number of switching transistors. The output terminal includes a first output port connected to the interleaved cascaded structure and a second output port connected to the first and second capacitor branches. The switched-capacitor converter and power conversion system provided by this invention can achieve dual outputs of the switched-capacitor converter, reduce the number of switching transistors and capacitors, and be compatible with multiple operating modes, which helps to meet the needs of miniaturization and cost reduction, thereby contributing to the widespread use of switched-capacitor converters.

This utility model relates to the field of reclosing switch technology, specifically a reclosing switch. The utility model includes a housing, a control panel mounted on the front surface of the housing, and a back plate connected to the back of the housing by screws. An installation compartment is formed on the front surface of the housing, and an operating mechanism and a DC motor are housed inside the installation compartment. An installation plate is fixedly mounted inside the housing near the lower part, and a collection module is mounted on the upper surface of the installation plate. A current transformer is installed at the bottom of the collection module. The operating mechanism includes a trigger spring and a connecting plate. This utility model reduces the overall size of the reclosing switch by using a DC motor instead of the traditional large-volume AC motor, thus forming a reclosing switch that conforms to power grid development and can be widely used. Furthermore, by using a specific collection module to supply current transformers for installation, the overall size of the reclosing switch is reduced while maintaining metering functionality.