498results about How to "Meet special needs" patented technology

A member for in-situ casting the reinforced concrete is composed of two halves, which are fastened together to form a hollow thin-wall member used for in-situ casting hollow floor slab, roof, wall, etc. Said member is made up by die pressing. Its advantages are high strength, low cost, and convenient transportation.

The invention relates to a teaching effect immediate feedback evaluation system. The teaching effect immediate feedback evaluation system comprises a campus network server, a class interaction feedback system, an analysis result inquiry system, a learning effect analysis system and a database. The class interaction feedback system collects answer information that students answer topics which a teach assigns in class in the database and transmits the answer information to the campus network server through a campus network. The learning effect analysis system compares the answer information with answers in the database, conducts statistic on answer results and analyzes the mastery degree of knowledge points. Parents, teachers or a principal can log into the campus network to inquire the answer results and the mastery degree of the knowledge points through the inquiry system. The evaluation system can automatically check homework and test paper of the students in real time, synchronously judge the mastery degree of the students on the learned knowledge points according to the conditions of the finished homework and test paper of the students, make conclusions, show the teaching effect of the teachers in a data form and provide reference for evaluating the teaching levels of the teachers and adjusting the teaching methods.

The invention discloses an asymmetrical dispatcher for a multicore platform-orientated asymmetrical dispatcher for a monitor of a virtual machine and a dispatching method thereof, which provides a specialized service core meeting the special high performance demand is provided for a client operation system based on the conventional virtual machine monitor VMM. The dispatcher comprises a service core request resolution module in a management domain, a Domain specific service core configuration module in VMM, a system top dispatcher module, a service dispatcher module, a shared memory mechanism module and a request inquiry module, and a hybrid virtual module in an HVM Domain. The asymmetrical dispatcher in the invention not only can provide different service cores according to the demands of upper layer Domain, but also can provide higher flexibility and expandability than the traditional dispatcher due to the consideration of the topological structure of a physical platform during the distribution of the service cores. In addition, the dispatcher provides an acceleration mechanism of a specific application type for the client operation system and improves the service efficiency of the entire platform.

The invention relates to a complex control system and method of a modular multi-level converter. The method is characterized in that each submodule capacitor voltage of an upper bridge arm and a lower bridge arm on the modular multi-level converter, currents of the upper and lower bridge arms and a power supply voltage of an alternating current (AC) side are detected, and a master controller carries out an operation on each submodule capacitor voltage, the currents of the upper and lower bridge arms and the power supply voltage of the AC side to obtain the public pulse-width modulation (PWM) duty ratio of the upper and lower bridge arms; an upper and lower bridge arm controller carries out an operation on each submodule capacitor voltage of the upper and lower bridge arms and the public PWM duty ratio of the upper and lower bridge arms to obtain the PWM duty ratio of each submodule of the upper and lower bridge arms; and the PWM duty ratio of each submodule is processed by a PWM signal generator so as to generate PWM control signals of each submodule, thus realizing balance control of each submodule capacitor voltage of the convertor and current and voltage control of the convertor. The complex control system is not required to use a special charge-discharge power circuit for a capacitor, can be applied to any PWM node, controls circulating flow flexibly, meets special demands, and is specific in physical significance and sufficient in theoretical foundation.

The invention discloses an environment monitoring alarm system and an application method thereof. The environment monitoring alarm system is an efficient distributed management system which is formed in a certain territorial scope, based on roadside sensing equipment distributed in a region, especially can be attached to foundation facilities, such as streetlamps and garbage cans and is convenient for coverage to a target area; the actual environment situations can be comprehensively judged through different categories of sensors integrated on the roadside sensing equipment and are intelligently responded on the roadside sensing equipment, so that real-time monitoring against actual environment information of different regions in the target area and real-time response prompt to the crowd can be realized, and the comprehensive management to urban and public commodities can be carried out conveniently.

The invention relates to a preparation method for a hard alloy with high intensity which includes: during re-wetmilling, adding the liquid paraffin with the temperature of 60 to 80 DEG C as a shaping agent; adding the liquid paraffin with a purity of 99.5 percent with a liquid-solid ratio of 10 to 30ml/Kg. The hot water with the temperature of 55 to 80 DEG C is pumped into the jacket of a wetmilling machine; a heat preservation barrel is also used for transferring the slurry of materials. In the invention, as the paraffin is used as the shaping agent and a special method is adopted to add the shaping agent, acetone is added as a wetmilling medium; compared with other mediums, the method of the invention not only is economic, but also has a good effect; the thick and thin tungsten carbide with two different average granularities are adopted to prepare the hard alloy with a bimodal structure; the thick particles ensure the toughness of the alloy; the thin particles then can improve the wear-resistance of the alloy; a working procedure of pre-pressing is increased to improve the pelletization performance thereof; a low-pressure sintering technique is adopted; different atmospheres and pressures in a furnace are adopted according to the different steps of the sintering process, thus ensuring the intensity of a product.

The invention discloses a two-layer micrometering bolometer and a manufacturing method thereof. The two-layer micrometering bolometer comprises a microbridge structure for a micrometering bolometer of an uncooled infrared detector or an uncooled terahertz detector, and is characterized in that: the microbridge consists of two independent bridge decks, namely an upper bridge deck and a lower bridge deck; a light absorbing material is positioned on the upper bridge deck; a thermistor material is positioned on the lower bridge deck; and four upper and lower bridge deck connecting posts on the upper bridge deck of the microbridge are connected with a metal heat transfer layer of the lower bridge deck of the microbridge. The upper bridge deck of the microbridge comprises one or more layers of light absorbing materials. The two-layer microbridge has higher light absorption rate and filling factor, and also has higher temperature uniformity and mechanical stability. The two-layer micrometering bolometer and the manufacturing method thereof can overcome the defects in the prior art, the working performance of a device is improved, and the two-layer micrometering bolometer is suitable for large-scale industrial production.

The invention discloses a multifunctional detachable yacht of diving and sightseeing. A lower part of the yacht on water is provided with a rise-and-fall underwater sightseeing cabin; both ends of the underwater sightseeing cabin are provided with air circulation tubes; the middle of the air circulation tubes are provided with a rise-and-fall elevator; the circumference of the underwater sightseeing cabin is provided with a meshy diving chamber which is integrated into a whole with the underwater sightseeing cabin via a rise-and-fall positioning rod; a center on the bottom of the yacht on water is provided with a flute; the underwater sightseeing cabin is hung on a yacht lifting device; when a preset limitation is reached, the underwater sightseeing cabin and the meshy diving chamber are reset synchronously inside the flute. The invention solves the complication of the underwater sightseeing facility and the uncertainty of the safety terminal technique and gets rid of the dependency on high required technical facilities. The simple and scientific structure design guarantees safety and is easy for management and control. The multifunctional detachable yacht of diving and sightseeing has the advantages of low manufacture and operating cost and safe and comfortable riding.

The invention discloses a wireless network capacity determining device and a method of a mobile communication network. The device comprises a data acquisition module, a basic prediction average value determining module, a fluctuation parameter determining module, a non-balance coefficient determining module and a stacking amendment module. The method firstly determines the basic prediction average value of the future traffic, the fluctuation parameters of the traffic and the non-balance coefficient of the traffic according to the acquired traffic in the determining process of the wireless network capacity, carries out the stacking amendment of the basic prediction average value according to the fluctuation parameters of the traffic and the non-balance coefficient of the traffic and finally obtains the wireless network capacity. By adopting the device and the method, the cost investment can be saved as far as possible under the premise of ensuring the wireless network capacity to meet the future traffic requirements and reduce the waste of wireless resources.

The invention discloses a terahertz or infrared micro-bolometer, which comprises a micro-bridge structure of a micro-bolometer for an uncooled terahertz detector or an uncooled infrared detector, wherein a thermistor material and a light absorbing material in the micro-bridge structure are one of a vanadium oxide-fullerene binary composite thin film or a vanadium oxide-fullerene-carbon nanotube ternary composite thin film. The vanadium oxide composite film is formed by compounding two-dimensional vanadium oxide and zero-dimension fullerene components or two-dimensional vanadium oxide, zero-dimension fullerene and one-dimensional carbon nanotube components. The micro-bolometer and a manufacturing method thereof can overcome the defects existing in the prior art and are suitable for large-scale industrial production; and the working performance of the device is improved.

The present invention discloses a porous polypropylene modified fibre for explosion-proof concrete. It is characterized by that said fibre is made up by using polypropylene chip whose melting index is 16-60 as main body raw material, adding 0.1-1% of distearic amide surfactant and 0.1-6% of inorganic ceramic micro-powder and making all the above-mentioned materials undergo the processes of mixing, granulating, high-pressure spinning and multistage drawing.

The invention designs a confrontation simulation and efficiency evaluation system based on equipment parameterization. According to the system, a simulation model development module supports a simulation service component architecture, an engineering management and operation guide control module adopts a distributed simulation guide control technology, a simulation resource management tool is adopted to uniformly manage and deploy models, scenarios and parameter resources in a simulation resource library, and the models, scenarios and parameter resources are deployed on a target node in a distributed simulation network; the simulation platform loads and operates various simulation resources through the simulation execution engine, and the efficiency assessment module adopts custom data management and efficiency assessment technologies. The system is used for an equipment confrontation simulation and efficiency evaluation software system in a large-scale combined action scene, solves the problems of universalization, platformization and expandability of a confrontation simulation system, supports full-life-cycle whole-process development, and can process simulation and evaluation tasks related to multiple types of simulation objects and multiple action scenarios.

The invention relates to a deep processing treatment system for hot rolling strip steel, and belongs to the technical field of deep processing of strip steel. The system comprises an independent hot rolling strip steel leveling machine set and a heat treatment line; the heat treatment line comprises a quenching heat treatment line and/or a normalizing heat treatment line; and the hot rolling strip steel leveling machine set (2) and the heat treatment line are arranged in adjacent finished product spans, and a leveling plate produced by the hot rolling strip steel leveling machine set is transported to the heat treatment line by spanning a platform lorry (1) or through other transportation modes to carry out quenching or tempering treatment. The system has the advantages of simple combination mode, flexible process route, wide range for adapting steels, little occupied area, investment conservation and the like, and can produce a product with high performance and high added value at the same time of meeting the requirements of common users so as to meet special requirements of high-end users and partially replace middle board products.

The invention relates to a flame-resistant PC (Polycarbonate)/PBT (Polybutylene Terephathalate)/PET (Polyethylene Terephathalate) alloy and a preparation method thereof. The alloy is prepared from the following components in percentage by weight: 30-50 percent of PC, 10-30 percent of PBT, 10-20 percent of PET, 3-8 percent of toughening compatibilizer, 9-15 percent of flame retardant, 4-8 percent of flame-resistant synergistic agent, 0.4-1 percent of antioxidant and 0.4-1 percent of processing aids, wherein the flame retardant is one of bromine brominated epoxy resin, brominated polystyrene and decabromodiphenylethane, the toughening compatibilizer is an ethane-methyl acrylate copolymer and (or) an ethane-methyl acrylate-methacrylic acid glycidyl ester copolymer. The preparation method of the flame-resistant PC/PBT/PET alloy comprises the following steps of: drying raw materials; fully mixing; stirring for 10-20min at a room temperature; and melting, blending and extruding. The alloy phase has excellent comprehensive performance and high performance price ratio, reaches the flame-resistant level of UL94-V0 and can meet the special use requirements of a certain places.

The invention discloses a vanadium oxide film for an infrared detector and a manufacturing method thereof. The film is a vanadium oxide-carbon nanotube composite film, which is formed by compositing one-dimensional carbon nanotubes and a two-dimensional vanadium oxide film. The film is used as a thermistor material and an infrared absorption material of the infrared detector. The infrared detector is manufactured by using the vanadium oxide-carbon nanotube composite film, so that negative effect on the chemical structure of a sensitive film in the conventional manufacturing technology is overcome, shortcomings of simple carbon nanotubes or a simple vanadium oxide material in the aspects of electrical property, optical property and the like can be overcome, and the comprehensive performance of the infrared detector can be improved at the same time. The manufacturing method of the vanadium oxide-carbon nanotube composite film disclosed by the invention is simple, does not need any complex and expensive film-forming equipment, reduces manufacturing cost, improves the serviceability of the infrared detector and is suitable for massive industrial production.

The invention discloses a single-steel multi-stage hot-rolled complex-phase high-strength steel plate and a production method thereof. The production method comprises the steps of heating, hot rolling, cooling, coiling, annealing and acid pickling. The steel plate comprises, by weight percentage, 0.08-0.15% of C, 1.80-3.00% of Mn, less than or equal to 0.015% of S, less than or equal to 0.025% of P, 0.50-1.00% of Si, 0.020-0.060% of Als, 0.40-1.0% of Cr, 0.010-0.040% of Ti, 0.10-0.30% of Mo, less than or equal to 0.007% of N, and the balance Fe and inevitable impurities. According to the production method, a composition system is adopted through a reasonable composition design, complex-phase steel with different strength levels is produced by controlling different structure types in the hot rolling and annealing processes, and therefore the special requirement that a steel enterprise can meet the different performance of users by adopting one composition system can be met, the mechanical property of the whole-coil product is uniform, the baking hardening performance is good, and the requirements of the users for small-batch and different-strength-level samples can be met.

The invention discloses a method for preparing a vanadium oxide thin film for a microbolometer. The method is characterized by comprising the following steps of: (1) cleaning and blow-drying a substrate for later use; (2) performing reaction directly on the surface of the cleaned substrate to grow a net-like or intersected and interconnected carbon nano-tube film by using one of a chemical vapor deposition system reactor, an arc discharge system reactor and a laser ablation deposition system reactor and through the induction of a metal catalyst; (3) placing the substrate where the carbon nano-tube film grows into a vacuumized reactor, growing a layer of vanadium oxide film by using the reactor, dispersing the grown vanadium oxide film on the surface of carbon nano-tubes and in the gaps among the tubes, and annealing to form a vanadium oxide-carbon nano-tube composite film structure; (4) cooling the structure to room temperature and taking the structure out of the reactor; and (5) according to requirements, repeating the steps of carbon nano-tube growth, vanadium oxide deposition and annealing sequentially to form a vanadium oxide-carbon nano-tube multi-layer composite film structure.

The invention discloses a specific target information collecting and application system and application method thereof. The system is based on a terminal device distributed in a zone, and especially can be depended on a road lamp, a trash can, and a foundation facility; the system is convenient to cover a target domain and forms a high-efficient distributed management system within a certain domain scale; specific to the specific target, the system carries out the position information collection and smart concerning or management service, so as to meet special demands of various management levels, and conveniently carry out comprehensive management on cities and public communities.

The invention relates to a self-controlled flow test device. The device comprises a master control computer, a filter 1, a decompressor, a pressure gage 2, a proportioning valve, a hand valve 3, a test liquid storage tank, a pressure gage 1, a filter 3, a solenoid valve 3, a hand valve 1, a differential manometer, a filter 2, a solenoid valve 1, a standard flow meter, a flow meter to be measured, a solenoid valve 2, a branch selector, a recycling tank, a recycling pump, a hand valve 2, a weighing module and a test weighing tank; The gas pressure inside the test liquid storage tank is stabilized within a specific range through large-scale coarse regulating by the decompressor and small-scale fine regulating by the proportioning valve, which satisfies the stable requirement of constant flow test. Through acquiring data of the pressure gage and the differential manometer of the test liquid storage tank and the flow data of the standard flow meter in real time, and through adjusting the cushion pressure of the test liquid storage tank, stable adjustment of system output flow is achieved and large scale target flow changes can be adapted to. The device realizes automation of test calibration and increases test precision and efficiency.

A remotely monitored domestic electric appliance features that a upper-layer machine has the picture and information receiving and transmitting functions, a domestic electric appliance has a communication unit containing communication board and data processing unit and with picture and information receiving and transmitting function, and they are connected to a communication network.