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253results about How to "Meet the needs of development" patented technology

Method for extracting and purifying cannabidiol from China-hemp

The invention belongs to the technical field of extraction and purification of plant ingredients and particularly relates to a method for extracting and purifying cannabidiol from China-hemp. In the method, an ingredient of cannabidiol is extracted from floral leaves in a mature period of the China-hemp according to a supercritical CO2 extraction technique, a cannabidiol extract is further purified by macroporous adsorbent resin and a rapid purification system, a cannabidiol content of an obtained product is 98% or higher, and the cannabidiol product does not contain a psychotoxic ingredient tetrahydrocannabinol. According to the method, a chemical organic solvent is not used in an extraction process, so that the method is environment-friendly and is low in toxicity and high in efficiency; the loss of cannabidiol in an adsorption elution process is reduced in a purification process, so that the impurity ingredients such as tetrahydrocannabinol and the like are effectively removed, and the use of an organic regent is decreased, so that the purification cost is lowered, and the environmental pollution is reduced. The product is high in yield and purity, and the requirement for development of a value-added product of the China-hemp, in particular to the market requirement of the active ingredient of the cannabidiol product in the China-hemp, can be met, and especially, the cannabidiol product has the great application advantage in the pharmaceutical field.
Owner:DAQING BRANCH OF HEILONGJIANG ACAD OF SCI

Preparing method of nano-Fe3O4 coating carbon nanotube magnetic composite material

This invention belongs to nanometer compound materials process and application technique field and to one carbon nanometer tube and ferriferous oxide compound materials process. This invention discloses one nanometer ferriferous oxide to cover carbon nanometer magnetic compound materials. This invention can process carbon nanometer tube in aqua forties for regurgitation and its surface leads in carbonyl, hydroxyl group and carboxyl group function groups, wherein, under outer magnetic field, the groups can be absorbed onto nanometer tube surface Fe3+ and Fe2+ with OH-1 to generate deposition reaction.
Owner:BEIJING UNIV OF CHEM TECH

Integration method of large-scale coastal newly reclaimed beach agricultural land ecologicalization exploitation

The present invention discloses an integration method of large-scale coastal newly reclaimed beach agricultural land ecologicalization exploitation, and belongs to the field of agricultural land ecological exploitation. The integration method mainly comprises four links including the space planning technology, the land consolidation technology, the soil improvement technology and the ecological management and protection technology of coastal beach agricultural land exploitation, and the four links commonly form the comprehensive control integration technology (system) of coastal large-scale newly reclaimed beach agricultural land ecologicalization exploitation. By adoption of the integration technology, the coastal soil salinization problem can be expected to be radically solved in 3-5 years. On the basis of coastal beach space planning and land consolidation, the target of coastal saline land improvement can be rapidly achieved by utilization of the modes including natural desalination, irrigation and loosening desalination and green manure back to field, and requirements of agricultural land exploitation are satisfied.
Owner:NANJING UNIV

Embedded gateway for wireless network protocol conversion between WiFi and ZigBee

An embedded gateway for WiFi and ZigBee wireless network protocol conversion belongs to the wireless communication network technology field, the embedded gateway comprises a microprocessor, a system bus and a peripheral circuit which is connected with the microprocessor, and the peripheral circuit comprises a Flash memory, a SDRAM memory, an asynchronous serial communication port, an Ethernet interface, a JTAG interface, a USB interface, a USB wireless network card, a GPIO interface and a ZigBee wireless transceiving module. The embedded gateway has the advantages of low cost and small size, and the embedded gateway is applicable to mass production and fixed-point layout in project development; the data processing speed is fast; the reliability is high, the functions are powerful; the power consumption is lower and the embedded gateway can be used for a long time under special circumstances. The embedded gateway can realize the protocol conversion and data forwarding between the wireless ZigBee network and the wireless WiFi network, thereby realizing the interoperability between the two wireless networks.
Owner:SHANDONG UNIV

Method for manufacturing high frequency copper-clad plate

The invention discloses a method for manufacturing a high frequency copper-clad plate. The high frequency copper-clad plate is manufactured by taking a high frequency material, namely polytetrafluorothylene (PTFE) as a base material and cladding a copper clad on two surfaces of the PTFE through PFA. The manufacturing method comprises the steps of cutting, pretreatment, laminating hot pressing, edge cutting and the like. The method adopts the PTFE with low dielectric constant as a medium for filling the high frequency material, and the manufactured high frequency copper-clad plate has lower dielectric constant and less dielectric loss; and by testing, the dielectric constant can reach 2.0 to 2.2, the dielectric loss is lower, and the high frequency copper-clad plate makes the information transmit more clearly and really during information transmission, and can meet the requirement of 3G information development.
Owner:黄威豪

Technological process for extracting aucubin from fruits of eucommia ulmoides oliver

The invention relates to a technological process for extracting aucubin from fruits of eucommia ulmoides oliver, which comprises the following steps: cutting the fruits of the eucommia ulmoides oliver into pieces, extracting with water or ethanol solution as an extraction solvent, and purifying the obtained extracting solution with macroporous resin to obtain the aucubin the purity of which is more than 50%. The technological process has the advantages of low toxicity, safety, short process time, no environmental pollution, simple and convenient operation, easy industrialization enlargement, high yield and good purity of the product, thus meeting various needs for development of drugs taking the fruits of the eucommia ulmoides oliver as main raw materials.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

Software system configuring tool of ARM series microprocessor

The invention, software system configuring tool of ARM series microprocessor, realizes quick configuration of imbedded application software system of various ARM microprocessors / controllers, obtains practical configuration based on ARM microprocessors / controllers, with rich program code base based on bottom hardware and strong adaptability of embedded hardware system, established on embedded ARM hardware system, and by means of simple and easily used visual human-machine interface, downwards forms bottom software composed of a minimal software system containing starting codes, system initializing codes and the like, and external and interface drivers, and upwards forms top software composed of a board support package based on direct software system of ARM instruction set or selected multi-tasking real-time operating system, callable application program interface function library and directly useable application program framework, by combining embedded extensive and rich code database and by means of adaptation and optimization stage by stage. The software system configuring tool is applied to design of embedded system, reduces development cycle to the utmost, research and development costs and threshold, strengthens reliability and high efficiency of system, and smoothly realizes design of functional application program so as to promote embedded products into market fast.
Owner:河南博元电力科技股份有限公司 +4

Integral catalyst for preparation hydrogen by methyl alcohot reformation and its preparation method

An integrated catalyst for preparing H2 from methanol by reformation is composed of cellular ceramic carrier, the internal coated layer, and the external coated active component and cocatalyst coating. It features that its heat absorbing reaction and heat releasing reaction take place on a same catalyst bed layer, resulting in high dynamic response.
Owner:上海舜华新能源系统有限公司 +1

Construction and identification method of molecular marking fingerprint of Dendrobium huoshanense and similitude species thereof

The invention relates to a method for constructing and identifying molecular marker fingerprint chromatogram of Dendrobium huoshanense and similar species thereof, which solves the problems that a method of identifying medicinal plants in the prior art has high cost, complicated procedures and long time consumption. The method comprises the steps of: 1, the collection of Dendrobium huoshanense samples; 2 the extraction and purification of DNA of genomes of the samples; 3. ISSR-PCR amplification; 4, agarose gel electrophoresis; 4, the construction of ISSR molecular marker fingerprint chromatogram of the samples to be tested; and 5, the identification of Dendrobium huoshanense germplasm by utilizing the constructed ISSR molecular marker fingerprint chromatogram. The method has the advantages that the method saves the time and the cost, and can obtain an accurate and reliable identification chromatogram through the extraction to DNA of Dendrobium plants, the ISSR-PCR amplification, and the agarose gel electrophoresis; the method has the advantages of simplicity, convenience, quickness, good repetitiveness, and high resolution on the identification of raw materials which are easy to confuse in appearance; and the method can identify in a seedling stage, which has important effect on ensuring the accuracy and stability of base resources of medicinal materials.
Owner:陈乃富

Business message transmission method and system

The invention is in use for solving heavy burden on gateway system caused by increased traffic capacity. The method includes steps: PROXY1 front-end processor connected to SP receives service information sent from SP to terminal; PROXY1 routes the service information, and sends the service information from SP to corresponding SmsApp main handling process; SmsApp handles the service information, and sends the handled service information to PROXY2 front-end processor connected to SMSC based on route of called party; PROXY2 sends the handled service information to corresponding SMSC based on number of the called party. Through scheme of adding more numbers of PROXY front-end processor, the invention raises access capability, and realizes load balancing.
Owner:HUAWEI TECH CO LTD

High strength chain steel for mine, and preparation method thereof

The present invention discloses a high strength chain steel for mine, and a preparation method thereof. The high strength chain steel comprises, by weight, 0.21-0.25% of C, 0.15-0.35% of Si, 0.20-0.25% of Mn, less than or equal to 0.015% of P, less than or equal to 0.015% of S, 0.40-0.65% of Cr, 0.60-0.70% of Ni, 0.07-0.15% of Cu, 0.02-0.05% of Alt, less than or equal to 0.012% of N, and the balance of Fe. The preparation method comprises steps such as electric furnace or converter smelting, refining outside the furnace, steel billet continuous casting and heating rolling, wherein nitrogen content in the steel is less than or equal to 80 ppm and oxygen content in the steel is less than or equal to 30 ppm after refining outside the furnace, a steel billet soaking temperature is 1150-1250 DEG C, a rolling staring temperature is 1000-1180 DEG C, a rolling finishing temperature is 830-980 DEG C, and annealing is performed to obtain the high strength chain steel for mine. Internal and external qualities of the obtained steel of the present invention meet high strength ring chain processing requirements of customers, and market requirements are met.
Owner:NANJING IRON & STEEL CO LTD

Basic software general configurator for electronic controllers

InactiveCN102043622AMeet the developmentAdapt to configuration needsSpecific program execution arrangementsBackground analysisResource management
The invention discloses a basic software general configurator for electronic controllers, which comprises an analyzer, a graphic configuration interface generation module, a parameter configuration module, a background analysis module and a project resource management module. A configuration item, namely an object is placed in a configuration description file and is analyzed by the analyzer to form a configuration item template tree, and the graphic configuration interface generation module generates a graphic configuration interface according to the configuration item template tree, so that the configuration object is separated from the graphic configuration interface; and when the configuration object is modified, only the configuration description file needs modifying, so that the graphic configuration interface can be modified. Therefore, the basic software general configurator for the electronic controllers can meet the configuration requirements of different electronic controllers and the development requirement of an embedded software system.
Owner:成电汽车电子产业园(昆山)有限公司

Method for preparing magnetic compound material of ferric oxide cladded carbon nanotube

The invention discloses a method for preparing magnetic composite material of a carbon nanometer tube covered with di-iron trioxide. The invention makes the carbon nanometer tube reflux in the nitric acid, to introduce several function groups such as carboxyl group, hydroxyl group and carbonyl group in the tube wall, which can adsorb iron ions in the solution. Then the iron ions adsorbed in the tube wall react with the hydroxide ion in the ammonial solution, which coated the hydroxide ion on the tube, and the tube can be coated with di-iron trioxide by calcining. The invention provides a simple way to get composite material, good performance soft magnetic material, which is facilitating to industrial production, and may be used in the areas of high-density magnetic recording material, wave-absorbing material, ink for electrophotographic copying, broad-cellulae transformer, noise filter, voltage transformer for communicating and so an.
Owner:DONGHUA UNIV

Method for preparing nano-pore structured polyethylene terephthalate (PET) foams by foaming through supercritical CO2

The invention aims to provide a method for preparing a polyethylene terephthalate (PET) nano-pore foaming material by inducing crystallization of PET through supercritical CO2, and aims to overcome the defect in the prior art and meet the development requirements of related fields. The PET is swelled and permeated by the supercritical CO2 at appropriate temperature, so that a large amount of CO2 can be dissolved in a PET substrate, and the crystallization of the PET can be induced when the concentration of the CO2 reaches a certain specific value; and therefore, a special crystal form and crystallinity distribution of the PET substrate are induced after the PET is swelled for appropriate time, temperature is quickly raised under the condition to make the CO2 in the PET substrate be supersaturated, and the foaming PET material with nano-aperture is obtained by nucleating and foaming.
Owner:EAST CHINA UNIV OF SCI & TECH

Nanometer fluid for compact oil reservoir imbibition oil discharging and preparation method thereof

The invention relates to nanometer fluid for compact oil reservoir imbibition oil discharging and a preparation method thereof. The nanometer fluid for compact oil reservoir imbibition oil discharging is prepared from the following ingredients through being metered by using the total weight as 100: 0.1 to 1 percent of hydrophobic nanometer silicon dioxide, 0.01 to 1 percent of surfactants, 0.1 to 1 percent of auxiliary dispersants and the balance water. The preparation method and the process are simple; the large-scale use in the oil field can be realized; after the injection into the stratum, the nanometer fluid for compact oil reservoir imbibition oil discharging generates a wedge-shaped thin film in a contact region of rock and oil; by using the structure, the forward thrust can be generated; the auxiliary effects of capillary pressure reduction, wettability reversal, phase seepage change hysteresis effect and the like generated by the system are combined; the oil can be peeled away from the rock surface; the goal of improving the yield is achieved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Foaming agent for forming CO2 foams and preparation method thereof

The invention discloses a foaming agent for forming CO2 foams and a preparation method thereof. The foaming agent contains alkylhydroxypropyl phosphobetaine as the basic component. In terms of 100 parts, the rest components are 3-20 parts of alkyl phosphate, 1-5 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 3-15 parts of lauryl imidazoline betaine, and 20-120 parts of water. The foaming agent for forming CO2 foams disclosed in the invention can form stable CO2 foams, thus meeting the needs of oilfield development.
Owner:CHINA PETROLEUM & CHEM CORP +1

Method for anonymous communication as well as registering method and access node adopted in same

The invention discloses a method for anonymous communication, which is applied to a network with a separating framework of identity identifiers and position identifiers and comprises the following steps of: sending an anonymous communication request to the network by a terminal; after the anonymous communication request is received by the network, allocating an anonymous identity identifier to the terminal, and returning the anonymous identity identifier to the terminal; and sending a data message to a communication opposite end by the terminal through an access node accessed in the terminal in the network, wherein the source address of the data message is the anonymous identity identifier of the terminal, and the destination address is the identity identifier of the communication opposite end of the terminal. The solution for separating the identity identifiers from the position identifiers based on the method provided by the invention can provide an anonymous space on the basis of constructing a real-name trust domain to satisfy the requirements of business development. Under the separating framework of the identity identifiers and the position identifiers, the real-name trust domain is ensured by network credit, and the business of the anonymous space is developed by the network according to business authorization.
Owner:ZTE CORP

Porphyra haitanensis germ plasma identification fingerprint construction method and its uses

The utility model relates to a reconstruction method and application for identifying fingerprint chromatogram of porphyra haitaensis, belonging to fingerprint chromatogram of porphyra haitaensis, in particular to reconstruction method and application for identifying fingerprint chromatogram of porphyra haitaensis. The utility model provides a rapid accurate reconstruction method for identifying fingerprint chromatogram of porphyra haitaensis and the application for realizing the porphyra haitaensis identification automation, which is characterized in that porphyra haitaensis specimens are collected; genome DNA of various specimens is refined and purified; the PCR is enlarged, the refined genome DNA is utilized as a template, SRAP molecule marking analysis is performed by the optimized experimental system; the representative SRAP multi-state bars are selected for reconstructing the DNA fingerprint chromatogram of various specimens; the reconstructed DNA fingerprint chromatogram is converted to the identifiable digital fingerprint by computer, and then is inputted to the fingerprint chromatogram identification software, thereby the digital fingerprint database of porphyra haitaensis is established. The utility model is used for follow-up porphyra haitaensis automation identification.
Owner:JIMEI UNIV

Information management system and information management method

ActiveCN104199955AAchieve Logical IsolationMeet decision analysisDatabase updatingFinanceComputer moduleBusiness data
The invention discloses an information management system. The information management system comprises a data receiving module, a data report generating module and a data uploading module, wherein the data receiving module is used for respectively receiving text data transmitted from an upgraded bank core system and text data transmitted from a non-upgraded bank core system; the data report generating module is used for generating a business report and an analysis report; the business report is logically isolated from the analysis report; data of the business report are independently loaded and processed; and the data uploading module is used for respectively uploading the reports to corresponding platforms. The information management method comprises the following steps of receiving data; generating data reports; and uploading the data. By the information management system and the information management method, generation and showing of new business data are supported on the premise that the overall structure of the existing system is not greatly adjusted, and functions of the system are well fulfilled.
Owner:BANK OF CHINA

Battery replacement station for heavy truck

The invention relates to the technical field of new energy automobiles, in particular to a battery replacement station for a heavy truck. The battery replacement station comprises a container assembly, a ground guide mechanism, an intelligent crane, a lifting appliance and battery packs; the container assembly comprises a first container and a second container; a channel used for allowing a vehicle body to pass through is formed in the second container in a penetrating mode; the ground guide mechanism is arranged in the channel; a plurality of standby battery packs used for replacement are arranged in the first container; the top of the first container communicates with the top of the second container; rails are arranged on the two sides of the interiors of the first containers and the second container; the intelligent crane used for lifting is arranged on the rails; the lifting appliance is arranged on the output end of the intelligent crane; the container assembly is further providedwith a third container; and the third container is connected to the second container in a butt joint mode. The battery replacement station are formed by quickly assembling the containers and has theadvantages of being convenient to transfer, compact in layout, high in battery replacement efficiency and worthy of popularization.
Owner:南京米特能源科技有限公司

Distributed maintenance-free intelligent direct current power supply system based on single batteries and control method thereof

The invention discloses a distributed maintenance-free intelligent direct current power supply system based on single batteries and a control method thereof. The system comprises at least one group of storage batteries and a distributed maintenance module connected with the storage batteries, the distributed maintenance module is connected with an intelligent control system, and the intelligent control system is connected with the storage batteries through an online bridge connection module and a UPS direct current system. According to the system, the newest power electronic technology and the embedded technology are employed, and a distributed intelligent charging, discharging, and monitoring integrated module is developed; determination of failed batteries, online bridge connection of failure batteries, and online capacity checking are realized; the conventional mode of a direct current cabinet, battery tour inspection, and manual regular maintenance is replaced by the extensible distributed module and a unified background; the conventional mode of regular checking of the capacity of the storage battery and discharging and charging maintenance is changed, and a technical realization method of the intelligent direct current power supply system for distributed online monitoring, online balanced maintenance, online activation, online capacity checking, online bridging of the failure batteries, and data remote transmission monitoring of the single batteries is provided.
Owner:STATE GRID CORP OF CHINA +1

Interactive data extension method based on Poisson image fusion and image stylization

The invention discloses an interactive data extension method based on Poisson image fusion and image stylization, which comprises the steps of extracting engine defects by reading annotation information of an original image based on an interactive data enhancement mode of Poisson image editing, and constructing a defect information base; adjusting the training parameters in the style migration model based on a Pytorch framework, and converting the style of the defect information into the style of the corresponding position in the background image to obtain a new defect image; fusing the new defect image and the background image, correcting a fusion boundary by using Poisson fusion, reducing a fusion trace, obtaining an engine hole detection image with a new defect, and using the engine hole detection image with the new defect as an extended image for model training of an engine hole detection image defect detection task; and performing interactive data expansion on the plurality of original images to generate a plurality of new defect images, taking the original images and the new defect images as an image binary classification data set, and judging the new defect images.
Owner:CIVIL AVIATION UNIV OF CHINA

Consensus establishment method based on lot drawing mechanism, devices and readable storage medium

The embodiment of the invention discloses a consensus establishment method based on a lot drawing mechanism, devices and a readable storage medium, and relates to the field of information processing.The method, the devices and the medium are used to reduce time consuming of consensus algorithms in the lot drawing mechanism. The method of the embodiment of the invention includes: acquiring first data, which are broadcast by an accounting node of an end-position block in a block chain, by a current node; using a local private key to carry out signature on a hash value of the first data to obtain second data; carrying out hash operation on the second data to obtain a local candidate hash value; then determining a broadcast moment, which corresponds to the local candidate hash value, according to the first algorithm; then broadcasting the local candidate hash value to the block chain at the broadcast moment corresponding to the local candidate hash value, determining alternate hash valuesaccording to an order of time when foreign candidate hash values are received; and selecting a target hash value from the local candidate hash value and the alternate hash values, wherein a node corresponding to the target hash value is an accounting node of a to-access block.
Owner:LAUNCH TECH CO LTD

High-speed high- precision servo linear motor sliding table

The invention discloses a high-speed high-precision servo linear motor sliding table which comprises a sliding table base, a lower sliding table is slidably connected with the sliding table base, and an upper sliding table is slidably connected to the lower sliding table; the upper sliding table and the lower sliding table respectively slide along the directions of X-axis and Y-axis which form an angle of 90 DEG, and the sliding table base, the upper sliding table and the lower sliding table are cast from cast iron. The invention has simple structure, wide speed range, good speed characteristics, high positioning precision, low noise and less wear, and can completely satisfy the requirements of numerical control machine development; compared with the traditional sliding table, the servo linear motor sliding table is more economical and practical; and the servo linear motor sliding table can be applied to high-precision feeding mechanisms of numerical control turning machines, and can also be applied to precision sliding tables of numerically controlled milling machines and processing centers.
Owner:九川(浙江)科技股份有限公司

Coiled tubing resistant to corrosion of small amount of CO2 and H2S and manufacturing method thereof

The invention discloses coiled tubing resistant to corrosion of a small amount of CO2 and H2S. The plate components of the coiled tubing include, by mass percent, 0.02%-0.08% of C, 0.15%-0.35% of Si, 0.4%-0.9% of Mn, 0.009% or less of P, 0.002% or less of S, 0.2%-0.6% of Cu, 3.0%-6.0% of Cr, 0.1%-0.25% of Ni, 0.2%-0.5% of Mo, 0.01%-0.04% of Ti, 0.015%-0.05% of Al, 0.02%-0.08% of Nb, 0.02% or less of Re, and the balance Fe and unavoidable impurities, wherein Re comprises La, Ce and Eu. By preparing a coiled plate, longitudinally shearing the coiled plate, carrying out lengthening through butt welding, forming and welding, finally, distressing treatment is carried out on welded seams and a tubing body, the coiled tubing resistant to corrosion of a small amount of CO2 and H2S is obtained. The CO2 corrosion resistance of the coiled tubing is three times or more that of ordinary C-Mn steel, the manufacturing cost does not exceeds 1.5 times that of common coiled tubing, and the coiled tubing is an economical coiled tubing product and can meet requirements of gas field development in the environment containing a small amount of CO2 and H2S.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Cation-type anti-swelling clay stabilizer containing N-heterocyclic quaternary ammonium salt and synthesis method thereof

The invention belongs to the technical field of oilfield development, and in particular relates to a cation-type anti-swelling clay stabilizer containing N-heterocyclic quaternary ammonium salt and a synthesis method thereof. The clay stabilizer is generated by performing reaction between anhydride naphthalene and dodecanol to generate dodecyl anhydride naphthalene half-ester, performing solution polymerization reaction with 2-(dimethylamino)chloromethane hydrochloride to generate an intermediate, and finally performing reaction with 2-bromomethylpyridine, wherein the molar ratio of the anhydride naphthalene to the dodecanol to the 2-(dimethylamino)chloromethane hydrochloride to the 2-bromomethylpyridine is 1:1-1.6:1.1-1.5:0.8-1.7, preferably 1:1.1:1.2:1.5. The clay stabilizer is characterized by wide source of raw materials, simple synthesis process, small usage and high reservoir adaptability. The clay stabilizer is good in temperature resistance and salt resistance, the temperature of 220 DEG C can be resisted, the degree of mineralization of 220000mg / L can be resisted, and the compatibility is excellent. The clay stabilizer can be strongly adhered to the surface of clay, is not prone to decomposition, and is long in duration and high in anti-swelling rate which exceeds 98 percent.
Owner:CHINA PETROLEUM & CHEM CORP +1

Continuous long fiber thermoplastic polypropylene compound specially used for automobile air bag frame and preparation method thereof

The invention discloses a continuous long fiber thermoplastic polypropylene compound specially used for an automobile air bag frame and a preparation method thereof. The continuous long fiber thermoplastic polypropylene (LFTPP) compound specially used for an automobile air bag frame is prepared from polypropylene, continuous long glass fiber, a heat stabilizer, a nucleating agent specially used for polypropylene, and a flexibilizer, and solves the defect of poor low-temperature impact performance of LFTPP. In order to solve the problem that high viscosity of the flexibilizer does not facilitate the infiltration of glass fiber, an LFT double infiltration die head process is adopted in the invention; infiltration of continuous long glass fiber by polypropylene is realized in a high temperature melt die head in the first step, and coating of thermoplastic elastomer and part of polypropylene is realized in a low temperature melt groove in the second step. The material of the invention has excellent high temperature rigidity and low temperature toughness, dimension stability, heat resistance, and durability, and meets material requirements of automobile air bag frames.
Owner:SHANGHAI KINGFA SCI & TECH +1

Improved method and device for establishing comprehensive load model

The invention discloses an improved method and device for establishing a comprehensive load model. Considering the distributed photovoltaic low-voltage crossing condition, the invention adjusts the reactive current command adaptively. According to the grid-connected control strategy and feed-forward decoupling strategy, the corresponding control block diagram is obtained. The total transfer function of the control block diagram is calculated and the equivalent load model of photovoltaic grid connection is constructed. Build the equivalent load model of energy storage and grid-connected, buildthe load model of photovoltaic energy storage distributed generation; According to the characteristics of electric vehicle charge and discharge, the electric vehicle charge and discharge load model isestablished. Finally, on the basis of the traditional integrated load model, a new generalized integrated load model is constructed by adding the above-mentioned distributed power supply and the charge-discharge characteristics of electric vehicles. The invention considers the low voltage crossing in the photovoltaic model, improves on the basis of the photovoltaic Norton equivalent model, considers the charge and discharge characteristics of the electric vehicle, thus more accurately describing the load characteristics, and can improve the accuracy of the power system simulation calculation.
Owner:STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2

Rb-doped concentration gradient ternary cathode material and preparation method thereof

The invention discloses a Rb-doped concentration gradient ternary cathode material and a preparation method thereof. The chemical expression of the Rb-doped concentration gradient ternary cathode material is Li1-xRbxNi1-a-bCoaMnbO2, wherein 0.01<=x<=0.1, 0.1<=a<=0.2, 0.1<=b<=0.3, and 0.5<=1-a-b<=0.8; nickel content is gradually decreased from the center to the surface of the cathode material particles, the content of manganese and cobalt are gradually increased from the center to the surface of the cathode material, the Rb content is uniformly distributed in the cathode material. The preparation method comprises the following steps of: (1) synthesizing a concentration gradient nickel-cobalt-manganese ternary cathode material precursor; and (2) uniformly mixing the concentration gradient nickel-cobalt-manganese ternary cathode material precursor with lithium salt and Rb salt, and performing calcining to obtain the Rb-doped concentration gradient ternary cathode material. According to the Rb-doped ternary cathode material, the nickel, cobalt and manganese are distributed in a gradient mode, the structure is stable, the tap density is high, and the cycle life is long; and moreover, the rubidium ion radius is large, the lithium compound form vacancy after the rubidium is doped, the lattice gap is increased, and the lithium ion conductivity is increased significantly.
Owner:光鼎铷业(广州)集团有限公司
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