148results about How to "Performance will not affect" patented technology

The invention provides a lithium ion battery. The lithium ion battery comprises a shell, and an electrode group and an electrolyte which are sealed in the shell, and the electrode group comprises a positive electrode, a negative electrode and a diaphragm positioned between the positive electrode and the negative electrode, wherein the positive electrode comprises a positive conductive matrix and a positive material adhered to the positive conductive matrix, and the positive material comprises a lithium iron phosphate positive active material, a lithium-containing additive, iron phosphate, a conductive agent and a positive binder; the lithium-containing additive is selected from one or more of Lix1Niy1Mnz1O2, Lix2M1y2Oz2, a silicate series positive active material and Lix3M2(WOz3), and the primary particle diameter of iron phosphate is not lower than 20mum; and the negative electrode comprises a negative conductive matrix and a negative material adhered to the negative conductive matrix, the negative material comprises a negative active material and a negative binder, and the negative active material comprises graphite and lithium titanate. The over-discharge resistance capability of the lithium ion battery made in the invention is excellent.

The invention pertains to the technical field of composite material science and environmental protection and relates to opening coal dust polluting inhibitor and the preparation method thereof. The inhibitor is the hydrophilic material compounded by a plurality of compounds, and every compound and the weight percentage thereof is that: 15-20 percent main film forming resin, 25-30 percent auxiliary film forming resin,1-2 percent thickening agent, 15-20 percent dispersant, 2-3 percent mould inhibiting antiseptic agent, 1-2 percent anti-sedimentation agent, 2 percent defoamer, 15-20 percent powder and 3-5 percent color paste. The invention adopts the theory of gravity flow mat gloss solidification, which effectively overcomes the disadvantages of uneven film forming thickness, long film forming time, poor stability of film layer, etc of original self-solidification inhibition materials. The invention has low price, and production thereof is simple and practical; in addition, the invention has remarkable economic, environmental and social benefits, and is applicable to treat raised dust pollution in the fields of shipping, power, mine, road, metallurgy, etc.

The invention discloses a coating fabric with high water pressure resistance and high moisture penetrability, which comprises a bearing layer, a waterproof layer coated on the bearing layer, a micropore layer coated on the waterproof layer and a protective layer coated on the micropore layer, wherein the protective layer is a wear-resistant coating with a micropore structure and is a hydrophilic waterproof and penetrable polyurethane coating with a hydrophilic function; the micropore layer in the middle is a micropore waterproof and penetrable polyurethane coating with a micropore structure; and the bottom layer of the fabric coating is a waterproof layer which has favorable film formation property and can provide a hydrophilic waterproof and penetrable polyurethane coating with high water pressure resistance. The fabric provided by the invention has the characteristics of higher water pressure resistance, high penetrability and wearing comfortability.

The invention discloses a Beta-Ga2O3 based solar-blinded ultraviolet photoelectric detector array and a preparation method thereof, and relates to the photoelectron technical field; the detector array comprises the following structures from bottom to top: a Beta-Ga2O3 luminous absorption layer, a lower electrode layer, an oxide film insulating layer and an upper electrode layer; the Beta-Ga2O3 luminous absorption layer is formed by growing a Beta-Ga2O3 film on a substrate; the lower electrode layer comprising column wires and interdigital electrodes is formed on the Beta-Ga2O3 luminous absorption layer; the oxide film insulating layer is arranged on the lower electrode layer; the most top layer is the upper electrode layer comprising line wires; the oxide film insulating layer is arranged in middle of the intersection portion of the line wires and column wires; the anode of each column of the interdigital electrode is connected on the column wire of the same column; the line wire is connected with the cathode of each line interdigital electrode; the prepared detector array is packaged by a ceramic packaging unit, thus obtaining the Beta-Ga2O3 based solar-blinded ultraviolet photoelectric detector array. The Beta-Ga2O3 based solar-blinded ultraviolet photoelectric detector array is strong in process controllability, low in cost, simple in operation steps, good in repeatability, short in development period, and can be massively produced.

The invention discloses a signal to leakage noise ratio (SLNR)-based two-stage precoding method in a large-scale MIMO FDD system. The operation complexity of precoding design of a first stage of each group of users is low, and the overall rate performance of the SLNR two-stage precoding method provided by the invention is superior to a JSDM precoding method proposed by Junyoung Nam et al. In addition, the method provided by the invention performs precoding design based on the SLNR of each group of users, does not cause channel state information loss, and does not influence performance of SLNR two-stage precoding even if angles of arrival of sending signals of two adjacent groups of users and a base station overlap.

The invention relates to an intelligent terminal application system based on network structure, which at least comprises one local network with intelligent terminal, access network, and fireproof wall; the first server area with several different server groups while each group has at least one server with different functions, and the first server area has authorization domain analysis server; network load balancer connected to the fireproof wall and the first server area, to select one of minimum-load server to connect the intelligent terminal, according to the requested server group and the load of server.

A magnetorheological (MR) fluid device including a pressurized MR liquid with an improved performance is provided. Also provided is a method for minimizing cavitation of a common magnetorheological device, comprising providing an MR fluid within the device with a pressure of at least 100psi. The device as provided minimizes cavitation in the device, and can be broadly used in the railway vehicle suspension system with excellent performance.

The invention relates to a high-sinking-resistance transparent primer and a preparation method thereof. The high-sinking-resistance transparent primer is particularly suitable for application on a wood substrate and especially suitable for application on a substrate with deeper wood-grain guide tubes. The primer is prepared from a main paint, a curing agent and a diluter in a mass ratio of 1:0.5:(0.3-1):0.5:0.7. The main paint is prepared from the following raw materials in parts by mass: 55-70 parts of small-oil-length alkyd resin, 5-15 parts of castor oil modified alkyd resin, 3-10 parts of zinc stearate, 0-30 parts of talcum powder, 0.5-1 part of anti-settling agent, 0.3-1 part of defoamer, 0.2-0.5 part of leveling agent, 0.1-0.5 part of wetting and dispersing agent, 0.1-0.3 part of drier and 5-15 parts of environment-friendly mixed solvent. The primer can be well combined with the substrate after being applied, and has excellent properties in the aspect of wood grain / guide tube filling. After the primer is placed for a long time, the paint film of the finish paint can not shrink, and can not generate the phenomenon of sinking.

The invention provides a voltage transformation circuit control system and method based on automatic optimizing model-free controller. The system comprises a virtual model-free controller with a compensation factor, a performance determining module, and a performance optimizing module. The virtual model-free controller with the compensation factor is used for establishing a control rate output module with an output compensation factor. The performance determining module is used for determining an object function according to output voltage required to be achieved by a voltage transformation circuit, and setting an upper limit of the number of performance optimizing times, and controlling the number of optimizing times of the performance optimizing module according to whether the voltage transformation circuit reaches optimal performance at present. The performance optimizing module is used for optimizing the step length sequence of the control rate, the weight parameter of the control rate, and an output rate compensation factor coefficient by using an optimization algorithm so as to obtain the optimized step length sequence of the control rate, the optimized weight parameter of the control rate, and the optimized output rate compensation factor coefficient.

The invention discloses a method for testing the transaction performance of a terminal. A test tool comprises a client, a database and a server; a user makes a transaction template and test cases at the client and stores the transaction template and the test cases in the database; and during testing, the server receives a test command and adopts a processing mode comprising the following steps of: a, loading the transaction template and the test cases to a memory pool from the database; b, initializing an extraction algorithm for extracting transactions from the memory pool; c, starting communication connection among the server, an acquiring platform and an encryptor; d, setting communication links as required; e, serving as terminal processed transactions; f, calculating whether an interval between the current time and last statistical time is more than or equal to a statistical period or not, and outputting transaction statistical information according to the statistical period when the condition is met; and g, returning to the step d and circularly processing transactions interacted with communication. By the method for testing the performance, multi-level related transactions can be supported, the actual transaction situation can be truly simulated, and test continuity is ensured.

The invention discloses a vehicle-mounted antenna and a manufacturing method of the vehicle-mounted antenna. The vehicle-mounted antenna comprises a shell body and an antenna radiating portion, wherein the shell body is provided with a cavity, the antenna radiating portion is arranged in the cavity, and the antenna radiating portion is formed through the laser direct structuring (LDS) technology. Because the cavity of the shell body of the vehicle-mounted antenna is provided with the antenna formed through the LDS technology, the antenna is not high, and not easy to break off, and generates no noise. The antenna is formed through the LDS technology, and is in an integrated structure. Unlike a bar-like antenna which is directly bent in the prior art, the vehicle-mounted antenna is good in performance.

The invention provides a monitoring method of a testing process, a test management server and a test server. The monitoring method of the testing process comprises the following steps of: sending a data acquiring request sent by the test management server; receiving test performance data sent by the test server, wherein the test performance data comprises the current network performance sampling data of the test server, and the current error quantity and error information of the test server; displaying the current network performance sampling data of the test server, and the current error quantity and error information of the test server; and determining according to the current error quantity and error information of the test server and displaying the current state of the test server. According to the invention, the test server is monitored and the state of the test server is acquired in time; and the test management server and the test server are independently arranged so that the monitoring of the test server can not influence the performance of the test system of the test server.

The invention relates to a fabricating method of a semiconductor device. The method comprises the following steps: a semiconductor substrate comprising a core device region and input / output device region is provided, and gate dielectric layers and gatespositioned on the gate dielectric layers are formed on the semiconductor substrates of both the core device region and the input / output device region; the gates are taken as masks, and the first ion implantation is performed in the semiconductor substrates of both the core device region and the input / output device region; rapid thermal annealing is performed, low-doped source drain regions are formed in the semiconductor substrates at the both sides of the gate dielectric layers of both the core device region and the input / output device region; wall clearance are formed on both the gate dielectric layers of the core device region and the input / output device region and on the side walls of the gates; the gates and the spacers are taken as masks, and the third ion implantation is performed in the semiconductor substrates of the core device region and the input / output device region to form a heavily doped source drain region. The method can adjust the saturation current of the device, and improve the reliability of the input / output device.

The invention provides a tracing and monitoring method of a multi-stage fracturing flow-back fluid. The tracing and monitoring method of the multi-stage fracturing flow-back fluid comprises the following steps of injecting a tracer agent into each formation in the horizontal well multi-stage fracturing operation process; in the fracturing fluid flow-back process, periodically detecting the concentration of the tracer agent in the fracturing flow-back fluid; and according to the detected concentration of the tracer agent, calculating amounts of a fracturing fluid and formation water in the fracturing flow-back fluid of each formation and drawing the section of the fracturing flow-back fluid of each formation so as to analyze a fracturing situation of each formation. According to the tracingand monitoring method of the multi-stage fracturing flow-back fluid, the fracturing situation of each formation can be quantitatively monitored; the judged fracturing situation is visual and accurateand can be quantitatively analyzed, and the error of the fracturing situation is small; and an important guiding effect on the fracturing work of the same formation is realized. After the fracturingsituation is obtained by using the tracing and monitoring method of the multi-stage fracturing flow-back fluid, a design scheme can be optimized for situations of different formations so that the fracturing targeted property is higher, the purposefulness is higher and the significance in the actual production is important.

The invention relates to a battery pole piece, a preparation method of the battery pole piece, and a battery, and relates to the technical field of batteries. The mainly adopted technical scheme is asfollows: the battery pole piece comprises a current collector, an active material coating and a PTC (positive temperature coefficient) material coating, wherein the surface of the current collector comprises a first area and a second area, the active material coating is coated on the first area, and the PTC material coating is coated on the second area. The preparation method of the battery polepiece comprises the following steps: preparing a PTC material slurry, coating the PTC material slurry on the second area of the current collector, preparing an active material slurry, and coating theactive material slurry on the first area of the current collector. The battery comprises the above battery pole piece. The battery pole piece is mainly used to reduce the probability of thermal runaway occurring when the battery is short-circuited or the temperature is too high, and the safety of the battery is improved.

The invention discloses a self-suction multiple-stage centrifugal pump with a variable-scale separation net. The self-suction multiple-stage centrifugal pump comprises the variable-scale annular separation net and an annular net frame. The variable-scale separation net and the net frame are closely attached together to be mounted between a centrifugal pump outlet and a backflow hole and are closeto the centrifugal pump outlet. The scales of grids, in the circumferential direction of the separation net, of the separation net change constantly. According to the specific change rule, smaller-scale and closer separation nets are distributed in areas high in bubble concentration and axial speed, bubble backflow is stopped, and bubble floating is accelerated; and larger-scale and sparser separation nets are distributed in areas small in bubble concentration and low in axial speed, backflow flowing resistance of the self-suction stage is reduced, and self-suction is accelerated. According tothe self-suction multiple-stage centrifugal pump, turbulent flow in a pump casing cavity at different rotating speeds is fully rectified, flowing uniformity is obviously enhanced after the flow passes through the variable-scale separation net, the fluid speed is reduced, and pressure is enhanced; and fluid kinetic energy can be converted into pressure potential energy better, and the pressure difference between an inlet cavity and an impeller inlet is increased.

The invention discloses a method for connecting a carbon fiber reinforced aluminum-based composite with a metal, relating to a method for connecting the composite with the metal. The invention solves the problem of serious interface reaction between reinforced phase carbon fibers and aluminum and degraded property of a base material due to high integral heating temperature of the traditional welding method. The method comprises the steps of: firstly, weighing aluminum powder, mixing with copper oxide powder, ball-grinding to obtain mixed powder; secondly, making the mixed powder into an intermediate layer with a relative density being 60 percent to 80 percent and a thickness being 1-3mm, storing in a sealing manner; and thirdly, placing the intermediate layer between the carbon fiber reinforced aluminum-based composite and the metal for assembling a sandwich, heating to 500 DEG C under the condition of the pressure being 5MPa, preserving the temperature for 5-10min, and furnace-cooling to room temperature. The invention can realize the connection of the carbon fiber reinforced aluminum-based composite with the metal at a temperature of 500 DEG C, and is applied to the field of connecting the aluminum-based composite with the metal. The joint strength can reach 50.7MPa.

An unsupervised hash method based on an auto-encoder comprises the steps: establishing a stack type denoising auto-encoder and training the stack type denoising auto-encoder by using a training set, wherein the stack type denoising auto-encoder comprises M encoding layers, a hash layer and M decoding layers which are fully connected in sequence; establishing a stack type auto-encoder with the samestructure as the stack type denoising auto-encoder by using parameters in the stack type denoising auto-encoder, and inputting the images in the training set into the stack type denoising auto-encoder in batches for training; removing a decoder in the final stack-type auto-encoder, and taking the reserved M encoding layers and hash layers as a retrieval network; inputting a to-be-retrieved imageinto the retrieval network to obtain the output of the hash layer; and quantifying an output result of the hash layer to obtain a hash code, calculating a Hamming distance between the to-be-retrievedimage and the hash code of the image in the database, and taking the image with the smallest Hamming distance from the to-be-retrieved image in the database as a retrieval result of the to-be-retrieved image. The unsupervised hash method has excellent retrieval and clustering effects at the same time.

The invention relates to a transparent medium antenna which comprises a radiation carrier and a substrate, wherein the radiation carrier is made of graphene; the substrate is a transparent, plastic and viscous substrate; and the radiation carrier is bonded on the substrate. Compared with the prior art, the antenna keeps transparent and ultrathin within a visible spectrum range; the antenna can achieve all functions of a traditional technology antenna; the conductivity of the antenna is much higher than that of a traditional copper antenna; the antenna is convenient to use, and can be mounted in any position inside and outside equipment in a bent shape by the substrate; the wear resistance, the tensile property and the flexibility of the antenna are much higher than those of the traditional copper antenna; and the antenna is convenient to mount, and can meet a stricter structural requirement.

A method for improving an iron powder forming property belongs to the technical field of powder metallurgy forming. Pressed blank density can be increased by using good lubricating performance of sulfide. Iron powder and ferrous sulfide powder are mixed in a ball mill and annealed in a hydrogen furnace after being mixed evenly, and the ferrous sulfide is distributed on the surface of the iron powder evenly. In a pressing process, the ferrous sulfide has a lubricating effect, friction condition among powder particles is improved, the forming property is improved, and a blank with the density as 7.2g / cm<3>-7.6g / cm<3> can be obtained. The method has the advantages that the iron powder forming property is good, the blank with higher density can be obtained under low pressing pressure, loss of a grinding tool is reduced, simultaneously sulfur does not affect the performance of iron-based parts, and the process is simple and suitable for industrialized production.

The invention discloses a graphene-distributed multi-physical-quantity sensor array system. The graphene-distributed multi-physical-quantity sensor array system comprises an array circuit board and array circuits, wherein the array circuits are distributed on the array circuit board; a plurality of graphene-distributed multi-physical-quantity sensor sub-modules connected with the array circuits are arranged on the array circuit board; each graphene-distributed multi-physical-quantity sensor sub-module comprises four physical quantity sensors including a graphene strain sensor, a graphene pressure sensor, a graphene temperature sensor and a graphene humidity sensor.

The invention provides a device and a method for recovering a low-concentration spinning waste liquid produced during preparation of a hollow fiber membrane. The device comprises a concentration unit and a distillation unit which are connected with each other, wherein the spinning waste liquid is concentrated by the concentration unit and then enters the distillation unit; the concentration unit comprises a waste liquid tank, a first conveying pump and a microfiltration membrane, the waste liquid tank is connected with the microfiltration membrane through the first conveying pump, and the microfiltration membrane is further connected to the waste liquid tank; the distillation unit comprises a concentration liquid tank, a second conveying pump, a distillation kettle and a rectifying tower, the concentration liquid tank is connected with the distillation kettle through the second conveying pump, and the distillation kettle is further connected to the rectifying tower. According to the recovery method, the low-concentration spinning waste liquid is concentrated and directly distilled, then organic solvents and additives are recovered, the performance of the recovered materials is good, and the economical performance of the recovery process is greatly improved.

The invention relates to a manufacturing method of thin elastic PU synthesized leather. One side of a thin elastic base cloth is attached with a layer of machine woven cloth, and the other side of the base cloth is compounded with a PU layer via wet processing of synthesized leather, then the base cloth is dried and molded, and the machine woven cloth is peeled during a coiling process; wherein, the base cloth and the machine woven cloth are fuzzed in a single surface, the fuzzed surface of the machine woven cloth is attached to the non-fuzzed surface of the base cloth by low concentration hydrophilic adhesive, and the PU layer is compounded to the fuzzed surface of the base cloth. The invention adopts the method of compounding a machine woven cloth to the rear surface of the base cloth, leads the machine woven cloth to bear the tension during the conveying process so as to prevent the thin elastic base cloth from distorting during the conveying process, thus enhancing the fabricating performance of the base cloth; the woven cloth is peeled during the coiling process, so high quality product can be obtained. The adhesive for the fuzzed surface of the machine woven cloth is attached to the non-fuzzed surface of the base cloth, and the dried adhesive is adhered and remained on the fuzzed surface of the machine woven cloth during the peeling process, which does not influence the performance of the PU synthesized leather.

The invention relates to application of nanoscale coating additive for effectively decomposing formaldehyde; the active ingredient of the nanoscale coating additive for effectively decomposing formaldehyde is nanometer TiO2 lyosol; in the invention, the nanometer TiO2 for rapidly decomposing the formaldehyde is added in the coating to effectively remove indoor formaldehyde; the method is non-toxic and harmless, has no secondary pollution, low cost and strong universality, and is simple and easy.

The invention provides a lithium ion battery. The lithium ion battery comprises a shell, and an electrode group and an electrolyte which are sealed in the shell, the electrode group comprises a positive electrode, a negative electrode and a diaphragm positioned between the positive electrode and the negative electrode, a positive material layer comprises a lithium iron phosphate positive active material, iron phosphate, a conductive agent and a positive binder; the smallest particle size of the iron phosphate is not lower than 20mum; a negative material layer comprises a negative active material layer, and the negative active material layer comprises lithium and / or a lithium alloy, a negative active material and a negative binder; or the negative material layer comprises the negative active material layer and lithium and / or the lithium alloy adhered to the negative active material layer, and the negative active material layer comprises the negative active material and the negative binder; and the negative active material comprises graphite and lithium titanate. The over-discharge resistance capability of the lithium ion battery made in the invention is excellent.

The invention discloses an efficient polyester composite catalyst and a preparation method and application thereof. The efficient polyester composite catalyst is transparent colloid, a dispersoid of the transparent colloid is a complex formed by Ti, Si, P, O, C, H and metal M or a gathered product of the complex; and the metal M is one or more of IA group metals, IIA group metals, VIII group metals and IIB group metals. The preparation method of the efficient polyester composite catalyst comprises the following steps: carrying out mixing reaction on a titanium source, a silicon source and alcohol A to obtain a product X; mixing organic acid with alcohol B to obtain a mixed solution Y; carrying out mixing reaction on the product X and the mixed solution Y to obtain a product Z; and carryingout mixing reaction on the product Z, a phosphorus source and metal salt to obtain the efficient polyester composite catalyst. The efficient polyester composite catalyst is applied to catalyzed polyester synthesis. The polyester composite catalyst does not coagulate or flocculate when meeting water, and has high efficiency and high selectivity.

The invention discloses a composite coating. The composite coating comprises the following components in parts by weight: 40-50 parts of fluorocarbon resin, 0.5-2 parts of graphene, 0.5-1 part of polyamide rheological agent, 5-15 parts of modified phosphate, 0.5-2 parts of dispersing agent, 0.5-2 parts of coupling agent, 5-10 parts of modified resin and 10-20 parts of solvent. The following two technical problems are mainly solved: I. the functions of the primer and the top coat are unified and the aim of convenience in construction is achieved; and II. graphene is used as a functional filler to achieve the function of high barrier, so corrosive media are difficult to permeate substrates, thus improving the salt spray, chemicals, weather and damp heat resistance of the coating.

The invention discloses a mobile terminal and an antenna system thereof. The antenna system comprises an antenna body and an earth antenna, wherein the earth antenna is arranged to be an easily touched area when the mobile terminal is held, and the earth antenna is connected to the main ground of the mobile terminal. Therefore, the earth antenna for connecting the main ground of the mobile terminal is embedded in an original antenna system, equivalently, ''false ground'' is smartly introduced into the original antenna system, and through the introduction of the ground, the sensitive area (namely the easily touched area when the mobile terminal is held) of the antenna system becomes insensitive, so that the influence of the held area on hands becomes small, the problem that the performance of some frequency bands of the antenna under the mobile terminal when the mobile terminal is held with hands is deteriorated is effectively solved, left hand and right hand balance of the antenna is realized, the antenna performance of the mobile terminal cannot be influenced, and the antenna performance can be even improved in partial frequency bands.

The invention discloses an energy supply system and a control strategy of lithium batteries of an electric automobile, applied to energy storage and distribution of an electric automobile. Three super-capacitors are arranged between a lithium battery pack (1) and a motor and energy recycling system (2) of the automobile in parallel. With the system, the lithium batteries are less prone to large current charge-discharge impact, and thus the service life of the lithium batteries is prolonged extremely; as the life of the super-capacitors is long, the whole life of the system is prolonged, working conditions of large current discharging of the lithium batteries are reduced, and the safety of the batteries is enhanced. Current does not change greatly, so that the estimation on remaining capacity of the lithium batteries and the battery equalization are facilitated, and the algorithm complexity of a battery management system is lowered. Recycled energy is directly stored in the super-capacitors, does not need to be charged into the lithium battery pack to serve as power, and can be directly used by a motor, so that the recycled energy use ratio is enhanced, and the battery use cost is lowered.