169results about How to "Meet different application needs" patented technology

The invention discloses a method for manufacturing a silicone micro-nano optical structure by using an imprinting technology. Firstly, a template serving as a seal during the imprinting is designed and processed according to the requirements of the structure of a device; secondly, an appropriate substrate material is selected and used according to the requirements of the micro-nano optical structure of the device, and then covered with imprinting glue; afterwards, structural patterns on the template are transferred to the imprinting glue by adopting an imprinting process, the imprinting glue is solidified and molded, the template is released after the template and the substrate are both cooled, and then a micro-nano optical structure with embossed figures is obtained; and finally, a polymeric optical bounding layer covers above imprinted lines according to the design of the device, and then the whole micro-nano optical structure is formed. By adopting the method, optical devices whichhave good weatherability and strong thermal stability and cause low loss can be prepared; and besides, the process is simple, so that the method has a cost advantage.

The invention relates to a preparation method of a TiBw/Ti-6Al-4V composite bar adopting a quasi-continuous reticular structure and solves problems that existing Ti-6Al-4V composites are harsh in technological condition, high in equipment requirement, low in production efficiency, difficult to produce on a large scale and the like. The method comprises steps as follows: low-energy ball milling and mixing are performed on spherical Ti-6Al-4V powder and TiB2 powder firstly; then TiB2/Ti-6Al-4V mixed powder is placed in a metal sheath for cold press molding, and vacuum degassing and sheath sealing welding are performed to obtain an extrusion billet; finally, short-time pre-sintering is performed on the obtained extrusion billet, and hot extrusion deformation is performed on the pre-sintered extrusion billet to obtain a required material. The method can be applied to preparation of a TiBw/Ti-6Al-4V composite adopting the quasi-continuous reticular structure.

The invention provides controllable self-crosslinking sulfhydrylated hyaluronic acid-collagen composite hydrogel as well as a preparation method therefore. The composite hydrogel is prepared from hyaluronic acid hydrogel and I-type collagen or II-type collagen; the I-type collagen or II-type collagen is distributed in a three-dimensional crosslinking network structure. The composite hydrogel has rigidity and elasticity, is high in mechanical property, can promote spreading growth of cartilage cells, is favorable for phenotype maintaining for cells, can relieve the shortcomings that an existinggel material for cartilage reparation is easy to shrink and low in cell adhesion, and has an important application value in the field of cartilage injury reparation.

The invention discloses a time-setting clock system of a merging unit for realizing clock switching. A master clock and a slave clock are connected with the merging unit by a switch respectively; all electronic transducers are synchronized by sampling pulses and then upload sampling values to the merging unit; and the merging unit merges the data of the transducers of each phase and transmits themerged data to a protection, measurement and control unit device. The time-setting clock system is characterized in that: the merging unit comprises a merging unit central processing unit (CPU) and afield programmable gate array (FPGA) module connected with the merging unit CPU, wherein the FPGA module is connected with a time-keeping crystal oscillator. The invention provides an IEC61588-based synchronization method for the merging unit, provides switching methods for the merging unit under the condition of two master clock sources, endows the merging unit with the synchronization accuracy of a submicrosecond level, and ensures the seamless switching of the merging unit in a clock switching process.

The invention relates to a method for implementing distributed file systems on the basis of hierarchical storage. The method includes steps of 1), establishing the distributed file systems without metadata service for data in systems by the aid of global unified name spaces; 2), dividing the integral distributed file systems into different logical partitions according to business requirements; 3), selectively utilizing different storage media and storage modes for the different logical partitions; 4), automatically migrating data of the logical partitions and repositioning the migrated data. Compared with the prior art, the method has the advantages of complete data access parallelization, good performance, low hardware cost and the like.

The invention discloses a preparation method of an Al-Cu-Li-X series aluminum lithium alloy sheet. The sheet prepared by the method is 0.8mm-8.0mm in thickness. The method comprises the following steps: cogging and hot-rolling homogenized slab ingots to a specified thickness and coiling; carrying out annealing treatment, uncoiling and carrying out band-type cold-rolling; carrying out intermediate annealing according to deformation during cold-rolling, thus obtaining the sheets with uniform thicknesses. The sheets can be in different states after being subjected to solution treatment, prestretching and aging treatment, so as to meet different usage requirements. Compared with the prior art, the aluminum lithium alloy sheet with high surface quality, uniform sheet size and smooth sheet shape is prepared by the method through band-type cold-rolling. The sheets can be in different states by different heat-treating processes, so as to meet usage requirements under different application conditions.

The invention relates to a frequency-hopping transmission system based on a double-pattern fast synchronization method. The system can quickly and stable establish synchronization, initial synchronization is established quickly through a short period frequency-hopping pattern, and stable synchronization is kept through a long period frequency-hopping pattern. The system performs data processing through a base band module formed by a programmable logic device, i.e., packaging and depackaging of protocol frames, frequency-hopping pattern generation, system synchronization and system multi-parameter configuration, etc.; radio frequency characteristic processing is completed through software configuration of a radio frequency integrated chip, i.e., up/down-conversion, modulation and demodulation, low noise amplification and power amplification, etc.; system working parameters can be realized by configuring a base ban module and a radio frequency system according to application requirements; and a system working mode can be set as a fixed frequency or frequency hopping communication system according to communication requirements, convenient and flexible configuration can be performed through an upper computer interface. The double-pattern fast synchronization method enhances anti-interference performance of the system, shortens synchronization establishing time, and is good in confidentiality and strong in anti-interference capability and anti-interception capability.

The invention relates to a smart metering and meal selecting system comprising a smart tray with an RFID electronic label packaged at the center, a smart tray machine, a smart metering and meal selecting bench, a background data management platform, a self-service settlement service, and a palmtop computer. The smart tray machine is a memory tray; and according to the smart tray machine, a tray isobtained by a diner by swiping a meal-taking card, carrying out face identification and carrying out fingerprint recognition, and online verification of validity of the diner is carried out. The smart metering and meal selecting bench is used for placing dishes and carrying out intelligent heat thermal insulation on the dishes. The background data management platform is used for setting all information of the metering and meal selecting system at the background and carrying out summarization, calculation and analysis on the collected data. The self-service settlement service is used for realizing meal-taking settlement of the diner. The palmtop computer is used for pushing meal-taking consumption and nutrition information reports through a WeChat public number by combining the meal-takingdetails of the diner with nutrition intake and prompting information of all nutritional ingredients. According to the system provided by the invention, the diner information is communicated with binding information of a meal-taking background management system immediately after the diner obtains the tray; and the diner is guided intelligent to take meals properly by combining the nutrition intakesituation. Therefore, an effect of healthy diet management is realized.

The invention relates to a combined multifunctional node of a wireless sensor network module, which comprises a hardware architecture and a software architecture. The hardware architecture comprises a sensor, an analog-to-digital conversion unit, a board level controller, a memory and a wireless transceiving unit. The software architecture comprises a basic software layer for driving various pieces of hardware equipment, a communication interface and a sensor interface on the board level controller and providing the operating environment for software in the upper layer. A service and medium piece layer realizes various basic functions of the sensor network equipment by means of the basic elements provided by the basic software layer. An application software layer relies on various basic functions provided by the service and medium piece layer to integrate various sensing services. An equipment management module is used for providing the technical support for a platform with a three-layer system architecture consisting of the basic software layer, the service and medium piece layer and the application software layer. The invention realizes the standardized and modularized open platform and can solve the problem of rapidly developing the wireless sensor network under different application environments.

The invention provides a grooved Schottky device structure and a manufacturing method thereof. The grooved Schottky device comprises an N-type heavily-doped substrate, an N-type lightly-doped silicon epitaxial layer, at least two grooves, N-type highly-doped polycrystalline silicon layers, a metal silicide layer, a positive electrode and a negative electrode, wherein the N-type heavily-doped silicon epitaxial layer is formed on the substrate; the grooves are formed in the silicon epitaxial layer; a first silicon dioxide layer, a middle medium layer and a second silicon dioxide layer are formed in sequence on the surface of each groove; the N-type highly-doped polycrystalline silicon layers are filled into the grooves; the metal silicide layer is formed on the surface of the silicon epitaxial layer; the positive electrode is formed on the surface of the metal silicide layer; the back electrode is formed on the back surface of the N-type heavily-doped substrate. According to the grooved Schottky device structure, a first silicon dioxide layer/middle medium layer/second silicon dioxide layer compound structure is taken as a groove medium layer, so that the leakage current can be reduced remarkably, the requirement on the increase of the breakdown voltage and the reduction of the leakage current are met, a narrow groove structure can be adopted, the Schottky potential barrier contact area is increased, and the positive break-over voltage is lowered.

The invention relates to a method for preparing smooth dense silver-coated copper powder through a chemical plating method. The preparing method comprises the following steps that deionized water anda dispersing agent are added into activated copper powder to obtain a copper nano-particle suspension liquid; a complexing agent is added into a silver nitrate water solution to prepare a silver complexing solution; and the above solutions are mixed, a reducing agent solution and a nano-silver suspension liquid are sequentially added, stirring is carried out at room temperature to obtain a silver-coated copper nanoparticle suspension liquid, and standing, washing and drying are carried out to obtain the smooth dense silver-coated copper powder. Compared with the prior art, nano-silver particles are added into a plating solution, so that the obtained silver-coated copper powder is dense in coating, smooth and non-porous in surface, excellent in conductivity and oxidation resistance, and extremely high in application value in the electronic slurry industry.

The invention relates to a multidimensional log system, comprising a multidimensional log data pool, a reader engine, a user reader, a system administrator reader, a maintainer reader, a developer reader and a custom reader, wherein, the reader engine reads multidimensional data from the multidimensional log data pool; the multidimensional data comprises a thread ID, a time stamp, classification,a grade, a user ID, a user IP, an information source and custom attributes; and the user reader, the system administrator reader, the maintainer reader, the developer reader and the custom reader areconnected with the reader engine. Compared with the prior art, the multidimensional log system has the advantages of more flexibility, less resource consumption, higher efficiency and the like.

The invention discloses a central switching and channel distribution method for an integrated service of a TDMA (Time Division Multiple Access) star network, relates to a method for implementing transmission of the integrated service under the condition of star networking of a TDMA satellite communication system, and aims to effectively solve the problem of concurrence and intercommunication between a central station and sub-stations as well as among sub-stations in the star network. According to the method, by using the central station to transmit and realize bidirectional service distribution, the intercommunication among services in the whole star network is realized, and aiming at real-time and non-real time services, flexible channel resource distribute is realized to further realize the distinct transmission service. The realization of the central switching and channel distribution method is mainly based on three major processes including service flow dividing and marking, bidirectional time slot applying and distributing, and service flow central forwarding. The method has the characteristics of simpleness in realization, flexibility in application, and certain service assurance capability, and is in particular applicable for the integrated service transmission process of the star networking of the TDMA satellite communication system.

The invention relates to an ignition gun for an industrial burner comprising a center pipe, an outer casing pipe, an igniting electrode, an insulation support and a transitional connector. On the insulation support, a center installation hole and an air flow hole are provided; the metallic pipe casing of the center pipe is connected with an igniting hi-pressure generator; the front end of the center pipe is provided with an igniting gun head nozzle block with a slant spraying hole; the metallic pipe wall of the outer casing pipe is provided with an entrance pipe for the combustion-supporting air; the center pipe is limited by the insulation support in the outer casing pipe. At operation, the metallic casing of the center pipe acts as a positive pole, the metallic casing of the outer casing pipe acts as a grounding negative pole, the inner of the center pipe is the channel for the gas fuel, and the space between the center pipe and the outer casing pipe is the channel for the combustion-supporting air; the gas fuel entered into the center pipe jets in a plurality of whiffs in dispersed way after passing the slant nozzles on the nozzle block; a discharging spark first fires one whiff and then the fired whiff ignites other whiffs to form a thick and long igniting torch. The invention is of simple and reasonable structure, works reliably and is of long service life, and is highly practical.

The invention provides a method for preparing zirconium dioxide nano powder by low-temperature calcination of zirconium sol. The method comprises the following steps: dissolving a raw material water-soluble zirconium inorganic salt in deionized water; adding an alkaline precipitant to generate a suspension, and centrifuging or filtering to obtain precipitate; adding mixed liquid of monobasic acid or monobasic acid and hydrogen peroxide into the precipitate, and continuously stirring for peptization to obtain a clear zirconium sol precursor; and finally, drying and dehydrating the zirconium sol precursor and calcining and decomposing in different temperature intervals, wherein amorphous zirconium dioxide nano powder as well as zirconium dioxide nano powder of which tetragonal phase can be kept stable without doping can be obtained, and the average particle size of the powder can be controlled between 3nm and 10nm. The preparation method of high-performance zirconium dioxide nano powder has the following advantages: the powder has small particle size, narrow distribution and good dispersity; the adopted raw material reagent is easily available and cheap; and the equipment requirements and operation technology are simple, the energy consumption is low, pollution is avoided, and industrial production is easy to realize.

The invention discloses a trapezoidal wave zone plate with a quasi-single-stage focusing characteristic. The trapezoidal wave zone plate comprises a light-proof substrate and a plurality of ring-shaped wave zones which are sequentially arranged from inside to outside by taking the substrate as a center, wherein each ring-shaped wave zone comprises at least two spiral trapezoidal hole light transmission units which are formed by twisting isosceles-trapezoid-shaped hole light transmission units, and are sequentially connected; the radial light transmittance of the wave zone plate meets a formula shown in the description. Compared with a common Fresnel wave zone plate, the trapezoidal wave zone plate can restrain the diffraction efficiency of a senior focus very well, also can reduce the peak strength of the senior focus. Moreover, when a ratio of the top edge of the original trapezoid to the bottom edge of the original trapezoid is equal to 1 to 5, the trapezoidal wave zone plate further has the effect of eliminating a 3n-level focus, and also restrains the efficiency of a 5-level focus to 0.16% of a 1-level focus (insulating efficiency being 6.93%). Compared with a Gabor wave zone plate, the 1-level focus efficiency is higher than the focusing efficiency of the Gabor wave zone plate, and the trapezoidal wave zone plate is easier to manufacture in comparison with a plurality of binaryzation Gabor wave zone plates.

The invention discloses a vehicle-mounted terminal system based on a cloud platform. The vehicle-mounted terminal system is characterized by comprising a vehicle-mounted terminal body and being implemented according to a working principle and a communication specification of a vehicle terminal system based on a cloud platform and a communication and control method among the vehicle-mounted terminal, the cloud platform, a vehicle controller, and a mobile device. The vehicle-mounted terminal includes a control module, a positioning module, a communication module, a network module, a video acquisition module, and a power supply module; the vehicle-mounted terminal carries out communication and data transmission with the cloud platform to realize remote monitoring; and the vehicle-mounted terminal carries out communication and data transmission with the vehicle controller by the network module to realize remote controlling of the vehicle. The vehicle-mounted terminal based on the cloud platform serving as a vehicle networking and dispatching control part is used for realizing all-round vehicle monitoring and management as well as vehicle positioning, remote monitoring and operation control, and data acquisition. On the basis of a three-dimensional network system established by the vehicle-mounted terminal, the mobile terminal and the cloud platform, effective docking of vehicle resources and application demands is realized, personalized application services can be provided for users; the requirement of the national transportation energy strategic transformation is met; and theinevitable tendency of transformation and upgrading development of the public transportation industry is promoted.

The invention discloses a communication method and device. The method comprises the steps that first communication equipment determines the requirement for transmitting second information and then transmits scheduling information of the second information in a physical resource set of transmitting first information; the first communication equipment transmits the second information on the transmission physical resource of the second information; the first information is continuously transmitted in the physical resource set of transmitting the first information, or the first information is transmitted in the physical resource set of transmitting the first information when the scheduling information and/or the second information is not transmitted; second communication equipment continuously detects the first information in a first physical resource set and the scheduling information of the second information; the transmission physical resource of the second information is determined according to the scheduling information after the scheduling information of the second information is detected; and the second communication equipment detects the second information on the physical resource and/or does not transmit the information on the physical resource. With application of the technical scheme, different application requirements of vehicle communication can be met.

The invention discloses a cationic reactive Gemini polyurethane surfactant and a preparation method thereof and belongs to the technical field of fine chemicals. The cationic reactive Gemini polyurethane surfactant is obtained by enabling excess diisocyanate to sequentially react with fatty amine polyoxyethylene ether and a chain extender, further adding a blocking agent to block remaining isocyanate groups, then neutralizing and dispersing in water. A series of surfactants with different performances, uses and unblocking temperatures can be obtained by selecting the types of fatty amine polyoxyethylene ether, the chain extender and the blocking agent. The cationic reactive Gemini polyurethane surfactant disclosed by the invention can solve the problem that the traditional surfactant is easy to migrate and precipitate on the one hand, and improve the compatibility of the cationic reactive Gemini polyurethane surfactant and the traditional surfactant, as well as water resistance, dielectricity, optical transparency and other performances on the other hand; furthermore, the cationic reactive Gemini polyurethane surfactant can realize the effects of strengthening, toughening, reducing surface tension and the like for a matrix, and shows broad application prospects in the fields of preparation of polymer emulsions, finishing of leather and synthetic leather, textile coating and the like.