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117results about How to "Break the limit" patented technology

Ejector-driven closed-loop recirculation temporary impulse supersonic wind tunnel flow field control method

The invention discloses an ejector-driven closed-loop recirculation temporary impulse supersonic wind tunnel flow field control method. An ejector arranged behind a diffusion section is adopted as themain drive of a wind tunnel flow field, under the cooperation of a recirculation regulating valve, an assisting air admission pressure regulating valve and an exhaust throttle valve, a stable supersonic flow field is established, wherein precise control of the total pressure of a stabilizing section is achieved under the mutual action of a pressure regulating valve of the ejector and the assisting air admission pressure regulating valve, and on the basis of the precise control of the total pressure, the establishing of stable supersonic flow fields with different M values under the same operation total pressure in a temporary impulse supersonic wind tunnel can be achieved under the cooperation of a nozzle profile surface and a diffusion section profile surface. By means of the method, thesimulation of negative pressure working conditions can be achieved in a closed-loop recirculation temporary impulse supersonic wind tunnel, the operating envelope and simulation range of the wind tunnel are effectively expanded, and the total pressure of a stabilizing section needed by the establishing of a supersonic flow field when the M value of a traditional temporary impulse wind tunnel is high can be significantly reduced, which facilitates the aerodynamic loading of a model and the improvement of the measuring accuracy of a strain gauge balance of the wind tunnel.
Owner:INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT

Dual-organic-ligand MOF, preparation method of dual-organic-ligand MOF, dual-organic-ligand charged MOF and preparation method of dual-organic-ligand charged MOF

The invention provides a dual-organic-ligand MOF, the MOF structurally comprises two different organic ligands with dicarboxylic structures; and the two different organic ligands with the dicarboxylicstructures comprise a phthalic acid organic ligand and a dipicolinic acid organic ligand. The structure of the provided dual-organic-ligand MOF comprises two different organic ligands, different organic ligands in the framework have different chemical functional groups, a chemical formula having an amino structure and a pyridine structure is obtained, the framework structure is charged due to thetwo organic ligands with two different chemical functional groups, the limit of the neutral framework of the MOF is broken, in addition to the fact that the positively charged framework structure with a high specific surface area shows the characteristic of the high specific surface area in the adsorption process, the MOF having different functional groups and the charged framework structure strengthens the adsorption effect in the dye wastewater, and has a better effect on adsorbing charged substances like an anionic dye.
Owner:UNIV OF SCI & TECH OF CHINA

Multi-core multi-thread microprocessor-oriented virtual active page buffer method and device

The invention discloses a multi-core multi-thread microprocessor-oriented virtual active page buffer method and device. The method comprises the following steps of: constructing a virtual active page buffer; managing construction, memory and deletion of a virtual active page in the virtual active page buffer according to an access memory request of an on-chip access memory component of a processor; and directly reading the virtual active page from the virtual active page buffer to improve the access memory performance when the access memory request is a read request and hit occurs in the virtual active page buffer. The device comprises a page predictor (1), an arbitrator (2), a virtual active page mark array (3), a virtual active page data array (4), a read-write queue (5), a command queue (6), a data return queue (7), a pending table (8) and a multi-path selector (9). According to the method and the device, the integral active page number of the memory can be increased, the cost for re-excitation after closing of the active page is reduced, and the access memory bandwidth is increased; and the method and the device have the advantages of high access memory performance and high extensibility.
Owner:NAT UNIV OF DEFENSE TECH

Housing vacancy rate assessment method based on electric energy service management platform

PendingCN105225026ACalculation is convenient and effectiveStatistics are simple and fastResourcesInformation technology support systemElectricity marketEngineering
The invention provides a housing vacancy rate assessment method based on an electric energy service management platform. The method comprises that the electric energy service management platform analyzes characteristic of users with zero electricity consumption, and a vacant house screening condition is obtained; vacant houses in a user group are screened according to the screening condition; and the housing vacancy rate of the vacant houses is calculated. According to the assessment method, the housing vacancy rate is calculated on the basis of power consumption data, and the calculation cost is reduced; and a uniform metering method is provided for present researches on the housing vacancy rate, and technical means is provided for resident migration, regional resident power consumption prediction and electricity market analysis.
Owner:CHINA ELECTRIC POWER RES INST +1

Method for mounting multi-partition storage device in Android system

The invention relates to a method for mounting a storage device in the Android system, and in particular relates to a method for mounting a multi-partition storage device in the Android system. The method comprises the steps of 1, sending an event containing all node information through an inner core when inserting and drawing an external storage device; 2, determining that the local storage daemon process monitors the event from the inner core and whether the node information in the event is included into a known lift of the Android; if so, enabling upper mounting to be performed, namely, updating the disk state, creating a thread to inform the local storage daemon process of implementing a specific mounting command, and mounting a partition only; if not so, enabling the local storage daemon process to work, adding to a list that can be processed, informing of performing the upper mounting, namely, receiving the information, adding the node information to a support list, and mounting the node; 3, finishing the mounting. With the adoption of the method, each partition can be successfully mounted for a user to use, and therefore, the waste of the disk space can be avoided.
Owner:SHANGHAI INFOTM MICROELECTRONICS

Method and device of monitoring height of corn plants in wild environment

ActiveCN102927916AExpand the field of developmentHigh facility costUsing optical meansGeneral Packet Radio ServiceEmbedded technology
The invention discloses a method and device of monitoring the height of corn plants in a wild environment based on an embedded type technology and a GPRS (General Packet Radio Service) wireless transmission technology, and belongs to the field of embedded type image processing and wild crop growth remote wireless monitoring. The invention comprises a device part and a method part. A data collection module of the device part utilizes a binocular stereoscopic vision principle; a data processing and transmitting module mainly utilizes the embedded type technology and the GPRS wireless transmission technology; and an independent power supply module mainly utilizes a photovoltaic power generation system to independently supply power to the whole device and the difficulty that no power grid exists in the wild environment is overcome. An embedded type image processing module of the method part can be used for eliminating the influences of wind power factors in the wild environment on corn plant images to the greatest extent; and a mobile terminal can be used for sending a wireless instruction through a GPRS wireless communication system, effectively and remotely controlling a whole data collecting and processing device to obtain a needed corn plant growth condition and performing the corresponding judgment and decision in time.
Owner:CHINA AGRI UNIV

EPA (ethemet for plant automation) on-chip system, EPA communication system and EPA communication method

The invention provides an EPA (ethemet for plant automation) on-chip system, an EPA communication system and an EPA communication method in order to solve technical problems. A third non-real-time phase is added to EPA data communication on the basis of previous periodic and non-periodic communications, non-EPA messages can be supportively and compatibly dispatched and processed apart from EPA periodic messages and non-periodic messages, the on-chip system is supportive to not only EPA configuration software of an upper computer to be pre-configured but also to common EPA message dispatch to be pre-configured, and limitation of the EPA configuration software is broken through; meanwhile, parameters of macro period, module communication time slots, periodic time and the like can be determined on the on-chip system according to situations of scale and data size of entire network, and singular distribution of EPA modules by users is avoided.
Owner:浙江杰芯科技有限公司

Complex terrain adaptive landing gear of vertical take-off and landing aircraft and landing method of complex terrain adaptive landing gear

The embodiment of the invention discloses a complex terrain adaptive landing gear of a vertical take-off and landing aircraft and a landing method of the complex terrain adaptive landing gear. The device comprises at least two landing legs, two movable joints, a scanning detector, a terrain recognition camera and load sensors, wherein upper connecting rods in the landing legs are connected with anundercarriage adapter frame through the movable joints, the upper connecting rods are connected with lower connecting rods through the movable joints, buffer mechanisms are installed in the lower connecting rods, foot end devices are installed at the tail ends of the landing legs, and load sensors are located between the lower connecting rods and the foot end devices; the two movable joints are used for controlling the moving postures of the upper connecting rods and the lower connecting rods respectively; the upper end of the load sensor is connected with the buffer mechanism, and the lowerend is connected with the foot end device; the scanning detector and the terrain recognition camera are mounted below the vertical take-off and landing aircraft; and the load sensors are used for measuring the ground load of the landing legs after the landing legs touch the ground, and controlling the posture of the landing legs by feeding back the ground load of the landing legs to a flight control system. The device disclosed by the embodiment of the invention solves the problem that an existing landing gear is generally poor in adaptability in the landing process.
Owner:CHINA AIRPLANT STRENGTH RES INST

Payment method, system and electronic equipment

The invention provides a payment method, a system and electronic equipment, wherein the method and the system are applied to first electronic equipment having the NFC function. The payment method comprises the steps of payment transaction and payment settlement. The payment transaction is conduced and completed when the first electronic equipment and a server are in the network off-line state. The payment transaction step comprises the operations of inputting a transaction request or receiving a transaction request input and sent from second electronic equipment through NFC; executing the transaction request; according to the result of the transaction request execution operation, sending a first transaction response to the second electronic equipment through NFC; generating and storing a transaction flow record. The payment settlement is conduced and completed when the first electronic equipment and the server are in the network on-line state. The payment settlement step comprises the operations of sending a non-settled transaction flow record to the server for bookkeeping; receiving a settlement result from the server; according to the settlement result, realizing the transfer of funds by a bank or a third-party payment platform. According to the technical scheme of the invention, each of two transactions parties can initiate the transaction, and the payment process is simple and rapid. The user experience is improved.
Owner:济南汉泰信息科技有限公司

Access point connection method and device

The invention discloses an access point connection method and device, and belongs to the technical field of wireless networks. The method comprises the steps that when connection operation to a target access point is detected, target access point information is determined, wherein the target access point information is used for identifying the target access point; a target password is acquired from a locally stored offline database according to the target access point information, wherein the offline database is used for storing the access point information and the corresponding password, and the target password is a password matched with the access point information; and connecting the target access point is performed according to the target password. The access point information acquired from a server and the corresponding password are stored in the offline database so that the terminal is enabled to use the offline database to acquire the password of the access point required to be connected under any network connection state so as to connect the access point, and the limitation that the terminal can connect the access point only when the terminal is under the network connection state can be broken through.
Owner:TENCENT TECH (SHENZHEN) CO LTD

A block chain-based chain currency exchange method, device and equipment and a medium

The embodiment of the invention discloses a block chain-based chain currency exchange method, device and equipment and a medium. The method comprises the steps of obtaining a currency exchange request; determining a target exchange amount according to the exchange exchange exchange rate between the source currency and the target currency in the currency exchange request and the amount to be exchanged; and according to the to-be-exchanged amount and the target exchanged amount, transferring the source currency from the user account to which the source currency belongs to the source chain account of the source parallel chain, and transferring the target currency from the target chain account of the target parallel chain to the user account. According to the scheme, the source chain account of the source parallel chain and the target chain account of the target parallel chain are introduced; and the source chain account and the target chain account are used as intermediate hubs for exchanging the chain currencies issued by different parallel chains, so that cross-chain exchange of the chain currencies is realized, the limitation of the block chain rule on the chain currencies is broken through, and meanwhile, the credibility and the value of the chain currencies are ensured.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Device for growing big emerging plant on near water surface of deep water area of lake

The invention discloses a device for growing a big emerging plant on the near water surface of a deep water area of a lake. The device comprises a buoyancy wooden bucket, a pulling rope, an adjusting article and a fixing article, wherein the inside of the buoyancy wooden bucket is divided into an up-and-down two layer structure by a separating board, the lower layer is a buoyancy foam layer filled with foam plastics, and the upper layer is a mounting medium layer filled with porous stones; the lower part of the buoyancy wooden bucket is provided with a connecting piece; the pulling rope passes through the connecting piece and is movably connected with the buoyancy wooden bucket; and one end of the pulling rope is connected with the fixing article, while the other end is connected with the adjusting article. The device makes that the big emerging plant is grown in the deep water area of the lake possible, and better improves the structure and function of an ecological system of the lake. The device has the characteristics of strong operability, low construction cost, practicality, easy popularization and good application prospect, and can be used for ecological restoration of plants in the deep water area of the lake.
Owner:NANJING UNIV

Multi-module cascading balancing method for cells

The invention belongs to the technical field of battery systems and relates to a multi-module cascading balancing method for cells. According to the method, unit cells are divided into groups; each group of unit cells is connected with a balancing circuit; each balancing circuit is provided with a bus communication interface; a plurality of balancing circuits are connected to form a communication local area network by buses; a certain balancing circuit is determined as a host; other balancing circuits are determined as slaves; the slaves report information of the unit cells managed by the slaves to the host by the buses; the host calculates modes of all the unit cells according to the mode principle-based cell uniformity evaluation method; and the same mode space is used as the standard to determine an object to be balanced and calculate balancing parameters. According to the invention, a plurality of balancing circuits are utilized to manage massive unit cells; the balancing circuits are communicated with each other by the buses; and the module cascading of a plurality of balancing circuits is implemented and the expansion of balancing ability is achieved.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Bidding file encryption and decryption method and device, equipment and medium

InactiveCN110661814AEasy and convenient encryption and decryption methodsBreak the limitTransmissionEngineeringCommon key
The embodiment of the invention discloses a bidding file encryption and decryption method and device, equipment and a medium. The method is applied to a mobile terminal. A digital certificate is integrated in the mobile terminal, and the method comprises the following steps: sending a public key in the digital certificate to bidding equipment, so that the bidding equipment encrypts a target bidding file by using the public key to generate a target encrypted bidding file, and sends the target encrypted bidding file to bidding equipment; and obtaining the target encrypted bidding file from the bidding device, decrypting the target encrypted bidding file by using a private key in the digital certificate to obtain a target decrypted bidding file, and sending the target decrypted bidding file to the bidding equipment. According to the embodiment of the invention, the bidding file is encrypted and decrypted by utilizing the mobile terminal integrated with the digital certificate, and the bidding file encryption and decryption method is free of terminal limitation and convenient to operate.
Owner:国泰新点软件股份有限公司

Three-phase parallel connection inverter system circulating current inhibiting method based on SVM strategy

The invention discloses a three-phase parallel connection inverter system circulating current inhibiting method based on an SVM strategy. The method is based on the two-level topology and SVM modulation strategy; the key technology of the three-phase two-level inverter parallel connection control operation is studied; the zero sequence ring current and switch loss problem generated by a common direct current bus parallel connection inverter is analyzed in detail; the SVM strategy can be used for inhibiting the zero sequence ring current of the parallel connection inverter. In order to solve the problem that no control method can be applied to the zero sequence ring current in the distributive power generation occasions of photovoltaic power generation, microgrid and the like of the inverter modularized parallel connection operation in the prior art. The NTV (Nearest Three Vector) synthesis principle modulation method is used for synthesizing the SVM; the ring current can be inhibited through regulating the switch conduction time. In addition, the method can reduce the switch loss. By using the SVM method, the ring current can be inhibited under the conditions of no additional hardware or complicated controller.
Owner:SHANDONG UNIV

Rotary ultraviolet sterilization lamp

The invention discloses a rotary ultraviolet sterilization lamp and belongs to the technical field of disinfection equipment. The rotary ultraviolet sterilization lamp comprises a shell, lamp tubes (5) and a controller (6), wherein the shell comprises a cover body (1) and a base (2), a containing cavity (3) is formed in the center of the cover body (1); N grooves (4) for fixing the lamp tubes (5) are uniformly formed in the outer wall of the cover body (1). The rotary ultraviolet sterilization lamp also comprises a switch (9), a motor driving circuit (7) and a motor (8), wherein the motor (8) is arranged in the containing cavity (3) in the cover body (1); a rotating shaft of the motor (8) is fixedly connected with a centre point of the cover body (1); the switch (9) is sequentially connected with the controller (6), the motor driving circuit (7) and the motor (8). The rotary ultraviolet sterilization lamp provided by the invention can move and uniformly irradiate, and the irradiation range is enlarged; the limitation to a position and the irradiation range is broken through; the disinfection and sterilization efficiency is improved; the disinfection and sterilization effects can be well achieved.
Owner:SUZHOU KANGHUA PURIFYING SYST ENG

Deformation monitoring method and system

InactiveCN110057308ABreak the limitations of the application environmentBroaden the scope of applicationImage analysisCharacter and pattern recognitionRegion of interestDistance ratio
The invention discloses a deformation monitoring method and system. The method comprises the following steps of acquiring a target image including an object to be tested and a reference object; performing edge detection on the target image and performing binarization processing on the target image to obtain a first binarized image; converting a color space for the target image to obtain a color space image; for a saturation channel or a luminance channel, performing binarization processing on the color space image to obtain a second binarized image; superimposing the two binarized images to obtain a superimposed image; extracting a region of interest in the superimposed image to obtain an image of interest; calculating a ratio of the Euclidean distance between coordinates of any two pointsof a reference object image in the image of interest relative to the actual distance, and obtaining a distance ratio; calculating the Euclidean distance of the contour of an image of the object to betested relative to the maximum displacement of an initial contour in the image of interest, and obtaining a deformation image distance; and dividing the deformation image distance by the distance ratio to obtain a deformation actual distance. The deformation monitoring method provided by the invention can realize the deformation detection of objects under various working conditions and broaden the applicable range.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Payment method, system and intelligent terminal

The invention provides a payment method, a system and an intelligent terminal. The payment method is applied to a first intelligent terminal. The method comprises the steps of inputting a transaction request or receiving a transaction request input and sent from a second intelligent terminal through NFC; executing the transaction request; sending a first transaction response to the second intelligent terminal through NFC, wherein on the condition that the transaction request is received, the execution of the transaction request and the sending of the first transaction response are automatically conducted; automatically generating and storing a transaction flow record. The payment settlement is conducted and completed when the first electronic equipment and the server are in the network on-line state. The settlement and transfer operation of the transaction flow record is conducted when the first intelligent terminal and a server are in the network on-line state. The settlement and transfer operation of the transaction flow record comprises the steps of sending a non-settled transaction flow record to the server for bookkeeping; receiving a settlement result from the server; according to the settlement result, realizing the transfer of funds by a bank or a third-party payment platform. According to the technical scheme of the invention, each of two transaction parties can initiate the transaction, and the payment process is simple and rapid. The user experience is improved.
Owner:济南汉泰信息科技有限公司

System and method for preparing ferrochrome

The invention discloses a system and method for preparing ferrochrome. The system comprises a mixed forming device, a pellet drying device, a rotary hearth furnace, a cooling acid leaching device, a leaching cinder drying device and a smelting device, wherein the mixed forming device is provided with a carbonic material inlet, a silica inlet, a fluxing agent inlet, a binder inlet, a ferrochromium mineral powder inlet, a water inlet and a mixed wet pellet outlet; the pellet drying device is provided with a mixed wet pellet inlet and a dried pellet outlet; a material distribution area, a pre-heating area, a reduction area and a discharging area are sequentially formed in the rotary hearth furnace in the rotation direction of a furnace bottom, a dried pellet inlet is formed in the material distributing area, and a solid reduzate outlet is formed in the discharging area; the cooling acid leaching device is provided with a solid reduzate inlet, a dilute acid inlet, a leaching cinder outlet and a leaching liquid outlet; the leaching cinder drying device is provided with a leaching cinder inlet and a dried cinder outlet; the smelting device is provided with a dried cinder inlet, a ferrochrome outlet and a cinder outlet. By means of the system, the production cost of the ferrochrome can be reduced while the raw material source of the ferrochrome is expanded.
Owner:JIANGSU PROVINCE METALLURGICAL DESIGN INST

PCIE monitoring method, system and device and computer storage medium

The invention discloses a PCIE monitoring method, system and device and a computer storage medium, and applied to a BMC of a server. for the method includes obtaining all PCIE device information transmitted by a BIOS of the server; and monitoring all PCIEs in the server based on all PCIE equipment information. In the present application, all PCIE devices in a server can be obtained by means of a BIOS; moreover, all PCIE devices in the server can be monitored based on all PCIE devices by means of the BMC, so that all PCIE devices can be monitored in one monitoring process, the limitation of a configuration scene on PCIE monitoring is broken through, and the monitoring effect is good. The PCIE monitoring system, the PCIE monitoring equipment and the computer readable storage medium providedby the invention also solve the corresponding technical problems.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD

Treatment device for paper manufacturing

The invention discloses a treatment device for paper product processing, which comprises a paper product feeding funnel, a stirring shaft, a stirring motor, a drying fan, a magnet, a door insert, a circular blade machine, a driving motor, a conveyor belt, a solar battery panel, an electric storage Box, LED lights, body and shredded paper conveying pipeline, the top of the body is fixedly provided with a paper feed funnel, one side of the paper feed funnel is fixed with a mounting frame and an LED light is installed in the mounting frame, and the inside of the body A drying fan is fixedly installed on one side, a magnet is fixedly installed on the other side inside the body, a support frame is fixedly installed inside the body, a ring blade machine and a stirring motor are installed on the support frame, and the output end of the stirring motor is connected to the stirring motor. The shaft is connected, and the stirring blade is fixedly installed on the stirring shaft, and the stirring shaft and the stirring blade are located in the machine body. The processing device for processing paper products is reasonable and simple in design, convenient in operation, good in stability, high in reliability and good in safety, and is suitable for wide promotion.
Owner:BEITANG JUNZHI PRINTING PAPER PROCESSING FACTORY

Preparation method of methylphenylcarbamate

The invention relates to a preparation method of methylphenylcarbamate. The preparation method comprises 1, adding urea and aniline into a pre-reactor and a diphenyl urea synthesis reactor and synthesizing diphenyl urea, 2, conveying the reaction liquid into a falling film evaporator and an evaporating crystallizer through a feeding pump, separating aniline, mixing the aniline and methanol, feeding the mixture into an alcoholysis reactor, carrying out a reaction process, feeding the reaction materials into a flash evaporation pot, separating a part of methanol and aniline and separating residual methanol and most of aniline through the falling film evaporator to obtain a methylphenylcarbamate crude product, and 3, feeding the methylphenylcarbamate crude product into a scraped film type molecule distillation device and further separating the residual microscale aniline and high-boiling residues so that high purity methylphenylcarbamate is obtained and has purity greater than or equal to 99.9%. The preparation method effectively improves methylphenylcarbamate synthesis efficiency and has a product yield greater than or equal to 98.0%. The preparation method is simple and easy and provides an effective synthesis and separation method of a phenyl carbamate intermediate used in preparation of diphenylmethane diisocyanate through the non-phosgene way.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

Method for flexibly managing cloud computing clusters

The invention relates to the field of cloud computing, and especially relates to a method for flexibly managing cloud computing clusters. The method comprises the following steps: setting a cloud management platform, providing a management interface by the cloud management platform, and newly adding, editing and checking and performing other management and scheduling operations on cloud resourcesvia the interface. By adoption of the method, the management efficiency is improved, the limitation of managing the computing resources by a single cluster is broken, since all clusters are logicallydivided, no upper limit problem of cluster management computation node exists, and the method can be applied to the management of the cloud computing clusters.
Owner:G CLOUD TECH

Live broadcast control method and device, storage medium, and electronic equipment

The invention provides a live broadcast control method and device, a storage medium, and electronic equipment, and relates to the technical field of live broadcast. The method comprises the following steps: creating a virtual image according to obtained model data of the virtual image; associating acquired performance data of a motion capture actor in a real scene with the virtual image so as to drive the virtual image based on the performance data of the motion capture actor; determining a target position matched with the position of the motion capture actor in the real scene in a live broadcast scene according to a scene mapping rule of the real scene and the live broadcast scene, synthesizing the virtual image to the live broadcast scene according to the target position, and generating a live broadcast video stream; sending the live broadcast video stream containing the virtual image to a live broadcast client for playing. According to the invention, the performance data of the motion capture actor is adopted to drive the virtual image, and the virtual image is synthesized to the live broadcast scene, so that the live broadcast mode interactivity can be improved.
Owner:GUANGZHOU BOGUAN TELECOMM TECH LTD

Polypropylene composite material and preparation method thereof

The invention belongs to the technical field of high polymer materials, and particularly relates to a polypropylene composite material and a preparation method thereof. The preparation method comprises the following steps: mixing high-fluidity co-polypropylene resin A, high-fluidity co-polypropylene resin B, high-impact co-polypropylene resin C, a toughening agent, titanate whiskers, an antioxidant and a lubricant according to a special ratio. The preparation method includes steps of: mixing, melting, homogenization and extrusive granulation to obtain the polypropylene composite material. By doping the titanate whiskers, the strength of the polypropylene composite material is remarkably improved, and the polypropylene composite material has a relatively low dielectric constant and can meet the requirements of multimedia transmission and high communication quality of fourth-generation mobile communication.
Owner:WUHAN JINFA TECH CO LTD +1

Positioning guide plate and manufacturing method thereof, and positioning guide plate model generation method and system

The invention provides a positioning guide plate, a manufacturing method thereof, a positioning guide plate model generation method and a positioning guide plate model generation system. The positioning guide plate model generation method and system are all based on a broken bone model after virtual reduction of a fractured bone of a fracture nail to be driven into a patient, and the method comprises the following steps: extracting a guide plate base surface from the model surface of the broken bone model; copying all the space points on the guide plate base surface and translating all the copied space points for a preset distance by keeping the original topological structure to form a guide plate base top surface; carrying out triangular patch fitting on the boundary points of the guide plate base surface and the boundary points of the guide plate base top surface to obtain an initially-formed guide plate model; constructing a guider three-dimensional model; rotating and / or translating the guider three-dimensional model on the initially-formed guide plate model by adopting a human-computer interaction mode to obtain a target guider three-dimensional model; and carrying out difference set Boolean operation on the target guider three-dimensional model and the initially-formed guide plate model to obtain a Boolean operation result, namely the positioning guide plate model to be generated. The method and system are used for assisting surgical positioning of the fracture nail.
Owner:UNIV OF JINAN

Hydroxyl-modified tremella-shaped three-dimensional carbon nanosheet as well as preparation method and application thereof in gallium recovery

The invention belongs to the technical field of preparation of effective recovery materials of gallium, and particularly relates to a hydroxyl-modified tremella-shaped three-dimensional carbon nanosheet material as well as a preparation method and application thereof in gallium recovery. According to the technical scheme, a tremella-shaped three-dimensional carbon nanosheet matrix is obtained by directly carbonizing sodium citrate serving as a carbon source, and titanium dioxide and sorbitol which are rich in hydroxyl are selected to be chemically bonded with the matrix. The preparation method disclosed by the invention is rapid, simple and convenient, mild in reaction condition, green and pollution-free, the prepared composite material not only can improve the hydrophilicity and the reproducibility of the carbon material and solve the problem that titanium dioxide serving as an adsorbent is difficult to well circulate and recycle in an aqueous solution, but also can increase functional groups, namely, active sites, on the surface of the adsorbent, effectively improves the adsorption performance on scattered metal gallium ions, and has practical applicability.
Owner:LIAONING UNIVERSITY

Culture medium for coriaceous euonymus tissue culture and method thereof

The invention relates to the technical field of tissue culture, in particular to a culture medium for coriaceous euonymus tissue culture and a method thereof. The culture medium for coriaceous euonymus tissue culture comprises an initial culture medium, a proliferation culture medium and a rooting culture medium. The culture medium can remarkably improve the survival rate and transplanting survival rate of the initially cultured coriaceous euonymus, the initiated culture survival rate is improved from existing below 30% to 85%, and the transplanting survival rate of seedlings is improved from existing 50% to existing above 90%. By utilization of the plant tissue culture method, the problems of long period and low reproduction rate of a traditional coriaceous euonymus reproduction mode are solved, a rapid coriaceous euonymus reproduction and culture system is formed, and industrialized seedling raising can be achieved.
Owner:河南红枫生物高科股份有限公司

Lanthanum aluminate green ceramic as well as preparation method and application thereof

The invention provides lanthanum aluminate green ceramic as well as a preparation method and application thereof, and relates to the technical field of ceramic. The chemical component of the lanthanum aluminate green ceramic provided by the invention is LaAl < 11-2X-YNi < X > Cr < Y > Ti < X > O < 18 >, X is equal to 1.5-5.0, and Y is equal to 0.0-2.0. The lanthanum aluminate ceramic provided by the invention is green and bright in color, and has relatively high hardness, toughness and color saturation.
Owner:INNER MONGOLIA UNIV OF SCI & TECH
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