57results about How to "Adapt to different application needs" patented technology

The invention discloses lithium-sulfur battery anode material comprising porous metal. The porous metal is compounded with lithium sulfide so as to be used as the anode material of the lithium-sulfur battery. The invention also discloses a preparation method of the lithium-sulfur battery anode material comprising the porous metal. According to the invention, by utilizing the characteristics of high electric conductivity, high porosity, high specific surface area and the like of the porous metal, elemental sulfur or the lithium sulfide is filled into pores of the porous metal, metal / sulfur composite material can be manufactured, and the utilization rate of the elemental sulfur and the lithium sulfide and the multiplying performance of the composite electrode can be increased; and simultaneously, by utilizing the strong interaction between the porous metal and the elemental sulfur or the lithium sulfide, the elemental sulfur, the lithium sulfide or polysulfide generated in a charge-discharge process can be more firmly attached on the surface of the porous metal, the dissolution of the polysulfide in an electrolyte, the shuttle effect caused by the dissolution of the polysulfide in the electrolyte and the deactivation on an anode and a cathode by redox product of the polysulfide can be restrained, and the circulation stability of a metal / sulfur composite electrode and the lithium-sulfur battery can be increased.

The invention discloses a system and method for constructing a three-dimensional multi-scale vascularized stent. The system comprises a 3D printer, a medical syringe, an air compressor and a high-voltage electric power. The method adopts a biological 3D printing technology combined with electrohydrodynamics direct writing to manufacture a stent containing a three-dimensional multi-scale vascularized network channel by a composite method of increasing and decreasing material manufacturing technology. As that three-dimensional shape of the sacrificial template require by the invention is imparted by the shape of the prin gelatin hemisphere, no harmful substances are generated in the whole process and the material is easy to obtain. By means of the printability of gelatin, Plannick F127 and PCL, three-dimensional and multi-scale vascularized stents can be fabricated, which solves the problem that three-dimensional and multi-scale vascularized stent network can not be obtained by biological 3D printing alone. It is of great significance to solve the vascularization problem of human tissue repair in clinical medicine.

One laser radar which is used for the measuring the wind field as a pilot balloon is microwave modulating. including the system of the pulse laser and extending-string mirror; the receiving system including the telescope , optical fiber, narrow-cut filter; the frequently system is made up of the light-sensitive detector and the telescope; the data handling system is composed of the analog digital transmitting setting, the computer, the software modulation of amplitude of nanosecond pulse the laser radar, the Doppler shift of the scattering of the air molecule and the gas-solid is achieved by the microwave frequency. Compared with the measuring wind laser radar, the invention keep the good points of the directivity of the laser radar room, the high standard of the distinguishing ability .the intimation of the sending wave-length, is adapt to the different requirements of the aircraft and military. Pulse modulation improves the signal to mask radio greatly. The sending of laser radar and the frequency of technical methods own the advantage of both the laser radar and microwave radar, countering the balance of the disadvantage of the present technology, the invention means a lot to the development of laser radar and the popularization of it in our country.

The invention relates to siloxane bridged trapezoidal polysiloxane. A main structural framework of the siloxane bridged trapezoidal polysiloxane is shown in formula I, wherein each substituent, m, x,y and z are as defined in the description and claims. The invention further discloses siloxane bridged trapezoidal polysiloxane random, block copolymers, and graft copolymers prepared by a siloxane bridged trapezoidal polysiloxane concoction. The siloxane bridged trapezoidal polysiloxane retains temperature resistance and flexibility of siloxane bridged trapezoidal polysiloxane fragments and goodcompatibility of general-purpose macromolecules, and degree of polymerization, mechanical strength, temperature resistance, optical properties and the like can be adjusted according to different compositions and proportions of copolymerized fragments, composition and proportion of end-capping agents, different structures of grafting units and the like. The formula is shown in the description.

The invention discloses a novel compound wave-absorbing agent and a preparation method thereof. The novel compound wave-absorbing agent is of a core-shell structure, the core of the compound wave-absorbing agent is particles using an iron-nitrogen compound as the main phase, the shell of the compound wave-absorbing agent is a dielectric-material coating layer, the iron-nitrogen compound can be single-phase Fe4N or Fe3N or can be a compound phase using Fe4N or Fe3N as the main phase and comprising one or two of Fe, Fe3O4 and gamma-Fe2O3, and the shell coating layer is a dielectric material, with the dielectric constant being 2-10, such as SiO2, amorphous carbon and conductive polymer. The preparation method of the novel compound wave-absorbing agent is wide in adjustable range, capable of changing process parameters to acquire different shapes or sizes so as to allow the product to satisfy different application requirements, simple in steps, convenient to operate and high in practicality. The novel compound wave-absorbing agent has good impedance matching conditions and attenuation performance and has high application values in fields such as radar stealth materials and electromagnetic shielding.

The invention relates to the technical field of visual simulation, and discloses an electronic warfare visual simulation platform based on XML and a method thereof, wherein the electronic warfare visual simulation platform adopted by the method comprises: a visual simulation model generator, a model navigator, an operation display, a scene navigator, a scene data manager, and a network communication manager, the visual simulation model generator being connected to a first input end of the operation display through the model navigator, a second input end of the operation display being connected to an electronic warfare physical device, a data simulation platform, and a control computer of an external system through the network communication manager and Ethernet; and a third input end thereof being connected to the scene navigator, and an output end thereof being connected to the scene data manger. The invention can implement independent deployment of each component of the system, facilitating reuse of the electronic warfare visual simulation model and mutual operation, and reducing repetitive development of the electronic warfare simulation system. The invention has better openness, versatility and flexibility, and is adaptive to application requirements of different electronic warfare tests.

The invention provides a preparation method of a gradient porous polymer material. The preparation method comprises the following steps: (1) by using two thermoplastic polymers as raw materials, premixing at room temperature, melt-blending and molding; (2) partially cladding a polymer blend green body with a co-continuous phase structure obtained in the step (1) by using the cladding material, placing in a reaction kettle, introducing the gas and warming the reaction kettle, controlling the pressure in the reaction kettle at 5-25 MPa, controlling the temperature of the reaction kettle so that the blend green body is in a molten state, and maintaining for at least 5 min at above pressure and temperature, reducing the temperature of the reaction kettle to the room temperature, and reducing the pressure in the reaction kettle to normal pressure, taking out the blend green body through above treatment and removing the cladding material thereon; (3) soaking the blend green body in gradient distribution with co-continuous phase size obtained in the step (2) in an etching solution to etch, and then taking out to obtain the gradient porous polymer material.

The invention discloses a multi-protocol gateway device of an information-based transmitting platform. The device comprises an FPGA (Field Programmable Gate Array) controller, a DSP (Digital Signal Processor) controller, a CAN (Controller Area Network) bus receiving-transmitting circuit, an Ethernet receiving-transmitting circuit, an external connector and a power conversion circuit, wherein the CAN bus receiving-transmitting circuit is connected with the FPGA controller and the external connector respectively; the Ethernet receiving-transmitting circuit is connected with the FPGA controller and the external connector respectively; the FPGA controller is connected with the DSP controller; the FPGA controller is used for receiving CAN bus and Ethernet data and waiting for the DSP controller to read, or transmitting CAN bus and Ethernet data written into the FPGA controller by the DSP controller; the DSP controller is used for receiving the CAN bus and Ethernet data from the FPGA controller, and resolving, filtering and forwarding the CAN bus and Ethernet data; and the power conversion circuit is connected with the external connector. The multi-protocol gateway device has the advantages of various types of communication interfaces, large quantity of communication interfaces, high data forwarding real-time performance, high reliability, high flexibility and the like.

The invention discloses a novel dual-frequency patch antenna with a resonance ring microstructure array, and belongs to the field of communication engineering. The novel dual-frequency patch antenna comprises a double-sided copper-clad PCB (printed circuit board) which is integrally formed by sequentially overlapping a metal patch layer, a medium substrate layer and a metal ground plane layer; one metal patch layer is provided, and a radiation array which is used for keeping a high radiation efficiency and an excellent radiation directional diagram at dual bands is etched on the surface of the metal patch layer. By the novel patch antenna, the defaults that, in the prior art, the dual-frequency patch antenna is large in size, or the radiation direction is easy to distort, the radiation intensity is reduced, and the cross polarization is deteriorated are overcome; the miniaturization is guaranteed, and high radiation efficiency and excellent radiation directional diagram are realized; and furthermore, the novel dual-frequency patch antenna does not need processing technologies such as passing through holes, welding and embedding, and the novel dual-frequency patch antenna is very suitable for mass manufacturing, processing and production.

The invention discloses a network customer service and pass management system based on doctor on-line interaction. The system comprises an application logic layer, a single sign-on unit, an object cache unit, a database, a background service unit, a synchronous service unit, a list item and a query and search unit which are mutually connected. The system can more effectively integrate the user resources of a platform, provides more convenient and professional service, can greatly improve the user experience, is favorable for establishing good use public praise, and contributes to wider popularization.

The invention discloses a method for preparing a silver dendritic matter and relates to the technical field of production of metallic nano / micro materials. The method comprises the steps of putting copper into a silver nitrate aqueous solution, carrying out replacement reaction at the temperature of 20-50 DEG C, and washing solids by using deionized water after the reaction is ended, thus obtaining the silver dendritic matter. According to the method, copper and silver nitrate have replacement reaction in the aqueous solution, and the prepared silver is of a dendritic structure which is composed of silver particles with the particle diameter of 10-300 nm and the size of 1-500 microns. The method has the advantages that the preparation steps are simple, the preparation conditions are mild, and the product is easy to purify.

The invention discloses a double isolation device and method for multipath AD acquisition and belongs to the technical field of measurement and control. In the prior art, AD acquisition is realized with analog signal isolation or digital signal isolation being considered independently. The provided double isolation device isolates analog quantity of the input end of an AD convertor, so that influence of external noise is reduced, and input precision of the analog signal is improved; through digital isolation of the output end and control signals, safety of the AD acquisition is ensured; and the device has obviously-high reliability, highly-safe electric isolation, simple structure, flexible use, wide application range and higher application value.

The invention discloses a method for preparing fuel oil by utilizing solar energy to crack waste plastics, which comprises the following steps of: (1) putting the waste plastics in a cracking furnace; (2) converging sunlight to a high-temperature heat pipe located under the cracking furnace through a solar energy converging lens, converting the solar energy into heat energy through the high-temperature heat pipe, and heating the waste plastics in the cracking furnace; (3) cracking and vaporizing the waste plastics in the cracking furnace to obtain a mixture of the fuel oil; and (4) separating the mixture of the fuel oil through a separator to obtain the fuel oil, and exhausting tail gas simultaneously. The invention also discloses a device for preparing the fuel oil by utilizing the solar energy to crack the waste plastics for realizing the method. Compared with the prior art, not only is the production cost reduced, but also the environment pollution is reduced.

The invention relates to a tunable optical attenuator based on an PLZT electronically controlled light scattering effect. The attenuator comprises a first optical fiber collimator, a PLZT transparentceramic with a parallel electrode, a first convex lens, an aperture, a second convex lens and a second optical fiber collimator. When the first optical fiber collimator is used in the optical path ofan optical fiber, the first optical fiber collimator and the second optical fiber collimator are light input / output paths, and the first optical fiber collimator, the PLZT transparent ceramic with theparallel electrode, the first convex lens, the aperture, the second convex lens and the second optical fiber collimator are coaxially arranged. The tunable optical attenuator has a compact structure,the designing of the optical path is simple and easy to achieve, the lost is low, the producing and adjusting are simple, not only can accurate control of optical power attenuation be conducted, butalso optical beam conversion can be achieved, control manners are flexible, and the adaptation of different application demands is facilitated.

The invention relates to a preparation method for a steel plate, which belongs to the technical field of metal plate preparation. The preparation method comprises the following steps of: firstly, adding raw material into a smelting container; heating steel leftover materials in the smelting container to the steel smelting temperature; in an air-pressure or self-weight mode, steel solution in the smelting container drips down from a small hole on the bottom of the smelting container to overlay and cover the steel solution on a plate blank; at the same time that the steel solution is overlaid and covered on the plate blank, a steel metal layer is subjected to thermal mechanical processing while being overlaid and covered; the crystal grain of the overlaid and covered steel metal layer tissue is refined to obtain a prefabricated steel plate blank of a fine grain tissue; and the prefabricated steel plate blank is subjected to machining to obtain the steel plate. The method disclosed by the invention has a low requirement on the raw materials, the raw materials can be abandoned materials, such as steel leftover materials, bar stocks, plate materials and the like, and therefore the production cost is greatly lowered. The technical process is greatly shortened, the production efficiency is greatly improved, and the fine grain steel plates of various ingredients, sizes and shapes can be prepared.

The invention discloses double-component hydrogel which comprises the following components: water-soluble polyether-ester with a cross-linking function, a water-soluble natural polymer with the cross-linking function, a reactant and deionized water. As two hydrogel components, namely, the water-soluble polyether-ester and the water-soluble natural polymer with respective advantages, are compounded to use, defects that polyether-ester hydrogel is easy to swell and high in biological inertia and the natural polymer hydrogel is too rapid in in-vivo degradation and poor in mechanical property can be overcome, due to the water-soluble polyether-ester component, mechanical property support and degradation delay can be achieved, due to the water-soluble natural polymer, bioactivity and shape fidelity can be achieved, and after the components are cross-linked and cured, a hydrogel product with controllable mechanical property, degradation behavior and shape and bioactivity can be prepared.

The invention belongs to the technical field of coatings, and particularly relates to a silicone acrylic resin coating as well as a preparation method and application thereof. Acrylic acid which is low in price and wide in application is added into a system, so that adhesion of the coating can be obviously improved, and the process cost is greatly reduced; obtained silicone acrylic resin is synthesized in a free radical polymerization manner, and two incompatible substances are combined by virtue of the action of chemical bonds, so that the resin system can be durable, stable and effectively combined with the advantages of organic silicon and acrylic ester without adding an emulsifier.

The invention relates to a device and method for continuously detecting the concentration or growth state of bacteria. The device comprises a detection unit module, a sensor data line and / or a laser control line, a single chip microcomputer control platform, a wireless data communication module and terminal data processing equipment. According to the device and method, the concentration of the bacteria can be continuously measured in a non-interference state under other special culture conditions, and then the growth state of the bacterial is dynamically monitored and studied in real time.

The invention discloses an energy management circuit for a sleep-wakeup mode and an energy management method. The circuit comprises a rectifier circuit of a power supply, a direct current booster circuit, a low dropout regulator and an electrical appliance. A super-capacitor, a timer circuit, a switch circuit and a reset circuit are arranged behind the rectifier circuit and the direct current booster circuit. The timer circuit controls sleep time of the electrical appliance (a chip). The switch circuit is taken as a power energy inflow enabling signal. The reset circuit is connected with a follow-up electrical appliance (the chip) and receives a work completion signal. A user can select specific sleep time according to a practical demand and the balance between power consumption reduction and normal work is achieved.

The invention discloses a pulse pressure regulating air cylinder comprising a cylinder body, a front cover, a rear cover, a piston and a piston rod. The front cover and the rear cover are fixedly arranged at the two ends of the cylinder body correspondingly. A first chamber is formed in the cylinder body. The piston is movably arranged in the first chamber and fixedly connected with one end of the piston rod. The other end of the piston rod penetrates through and stretches out of the front cover. A reset spring is arranged in the first chamber. One end of the reset spring abuts against the piston, and the other end of the reset spring abuts against the front cover. A second chamber is formed in the rear cover. The first chamber and the second chamber are separated through the piston. An air inlet is further formed in the rear cover and communicates with the second chamber through an air inlet channel. A pressure regulating screw is further arranged on the rear cover. The pressure regulating screw and the air inlet channel are matched to form a throttling opening. A pressure releasing opening communicates with the first chamber is formed on the side wall of the cylinder body. The pulse pressure regulating air cylinder is simple and reasonable in structure and can replace a traditional motor eccentric wheel to produce vibration, the cost is reduced, and the vibration effect is good.

The invention relates to the technical field of new materials and application thereof, in particular to a graphene film and a preparation method thereof. According to the preparation method, three-dimensional communicated porous metal with high porosity and high density is taken as a template, and a graphene layer is catalytically grown on the surface of the metal template under proper temperature and atmosphere conditions by utilizing a chemical vapor deposition process. And removing the metal substrate to obtain the three-dimensional communicated porous graphene skeleton. And pressing the three-dimensional graphene skeleton into the flexible film by applying pressure. The thickness, pores and the like of the graphene film can be regulated and controlled by regulating and controlling preparation parameters. The method is simple in process and low in production cost. The prepared graphene film has very high crystallization quality and flexibility, and has excellent heat conduction and electric conduction performance in the in-plane direction and in the vertical plane direction. As the graphene film is of a full-carbon structure with high crystallization quality, the graphene film can be stably used in an air environment below 800 DEG C, and has huge application potential in the fields of heat conduction, electric conduction, electromagnetic shielding and the like.

The invention discloses a military-doctor knapsack. The military-doctor knapsack comprises a bag body, the inner side faces of two side sheets of the bag body are each provided with multiple first connecting parts, and all the first connecting parts are parallelly arranged in the thickness direction of the bag body; an adjustable dividing assembly comprises a first winding device and dividing cloth, wherein the first winding device comprises a first shell, a first rotating shaft and a first clockwork spring, the dividing cloth is wound on the first rotating shaft, and the first clockwork spring is arranged at one end of the first rotating shaft; the other end of the dividing cloth is pulled out of the first shell and bent back and forth between the two side sheets, the dividing cloth is connected with at least one first connecting part on all side cloth through a detachable connecting piece, and the internal space of the bag body is divided into two containing spaces through back-and-force bending of the dividing cloth between the two side sheets. According to the military-doctor knapsack, the bending position and the number of bending times of the dividing cloth are adjusted, thequantity and the volume of the formed containing space can be actively adjusted, and therefore different application requirements are met.

The invention discloses a two-degree-of-freedom elastic module, and a measurement method and a control method thereof. The two-degree-of-freedom elastic module comprises an elastic module connecting device and an elastic module body, wherein the elastic module connecting device is used for independently connecting the elastic module with an input shaft and an output shaft; the input shaft is connected with a motor; the output shaft is connected with a load; the elastic module body comprises an elastic body, an input shaft angle measurement device, an output shaft angle measurement device and an output shaft axial displacement measurement device; the elastic body generates elastic deformation in a rotation direction and an axial direction; and the motor, the input shaft, the elastic body, the output shaft and the load are positioned on the same axial line. The two-degree-of-freedom elastic module has the beneficial effects that: (1) the elastic control of two dimensions, including rotation and translation, can be simultaneously realized, and an elastomer material is convenient in replacement so as to be suitable for different application requirements; (2) the rotation direction deformation and the axial displacement of the elastomer can be detected in real time; and (3) practical force and a practical moment are calculated in real time, and the accurate control of the speed, themoment and the axial force of the elastic module can be realized.

The invention discloses a method for automatically allocating ammeter addresses. The method is used for realizing automatic address allocation of a plurality of ammeters, and comprises the following steps that: S1: an upper computer sends a broadcast setting instruction to the plurality of ammeters, so that the plurality of ammeters temporarily create a batch of ammeter address lists, and the upper computer sequentially detects the uniqueness of the ammeter addresses in the ammeter address lists; S2, the plurality of ammeters are connected in sequence, and the upper computer selects a batch ofdistributed ammeter addresses from an address pool to set the ammeter addresses; and S3, the upper computer deletes allocated address codes in the address pool and then executes the step S1 until allthe ammeter addresses in the address pool are allocated one by one. According to the method for automatically allocating ammeter addresses, the mode that the addresses are automatically allocated tothe multiple ammeters can be achieved, when the ammeters apply for the addresses to the upper computer, one address is selected from the specified address pool to serve as the communication address ofthe ammeters, optimal allocation of resources is achieved, and resource waste is avoided.

The invention discloses a military-doctor knapsack. The military-doctor knapsack comprises a bag body, the inner side faces of two side sheets of the bag body are each provided with multiple first connecting parts, and all the first connecting parts are parallelly arranged in the thickness direction of the bag body; an adjustable dividing assembly comprises a first winding device and dividing cloth, wherein the first winding device comprises a first shell, a first rotating shaft and a first clockwork spring, the dividing cloth is wound on the first rotating shaft, and the first clockwork spring is arranged at one end of the first rotating shaft; the other end of the dividing cloth is pulled out of the first shell and bent back and forth between the two side sheets, the dividing cloth is connected with at least one first connecting part on all side cloth through a detachable connecting piece, and the internal space of the bag body is divided into two containing spaces through back-and-force bending of the dividing cloth between the two side sheets. According to the military-doctor knapsack, the bending position and the number of bending times of the dividing cloth are adjusted, thequantity and the volume of the formed containing space can be actively adjusted, and therefore different application requirements are met.

The invention discloses an assembly type tent support. The assembly type tent support comprises two vertical supporting rod sets and a conical ceiling assembly arranged above the two vertical supporting rod sets, the end of the ceiling assembly is connected with a vertical functional rod set, the vertical functional rod set comprises a plurality of partition vertical rods, and the partition vertical rods connected to each butt joint rod set can be connected through partition connecting pieces to form combined matching. The conical ceiling assembly can be further provided with a plurality of adjusting rod sets. According to the assembly type tent support, a partition functional rod set is arranged on the ceiling assembly and can be adjusted in a displacement mode, functional partition construction of the end face, except for the wall end face, of the tent and the internal space is achieved, and different application requirements can be effectively met; and in addition, the adjusting rod sets are arranged on the ceiling assembly, gap spaces between longitudinal rod sets are separated, the rainwater accumulation condition is effectively avoided, connector connecting pieces are optimized, the overall structure is more reasonable, and the structural strength and stability of the overall tent support are improved on the basis that convenient disassembly, assembly, storage and transportation are achieved.

The invention relates to the field of polyurethane, in particular to a two-component polyurethane binding agent and a grinding wheel applying the same. The two-component polyurethane binding agent comprises a composite material and isocyanate, based on the total mass of the composite material, the composite material comprises the following raw materials: 30%-60% of polyether polyol with functionality of 2, 25%-45% of polyether polyol with functionality of 3, 25%-45% of a chain extender, 0-3% of a silane coupling agent, 0-0.05% of a catalyst and 0.3%-1% of a water absorbent. Based on the totalmass of the isocyanate, the isocyanate is prepared from the following raw materials: 70 to 100 percent of polyisocyanate and 0 to 30 percent of diphenylmethane diisocyanate. Compared with commerciallyavailable products, the two-component polyurethane binding agent has the advantages that by adjusting the types of the polyether polyol and the adding proportion of the raw materials, the use of high-functionality polyol is reduced or avoided, so that the toughness of the two-component polyurethane bonding agent is improved on the premise that other properties meet the requirements.

The invention discloses a multi-protocol gateway device of an information-based transmitting platform. The device comprises an FPGA (Field Programmable Gate Array) controller, a DSP (Digital Signal Processor) controller, a CAN (Controller Area Network) bus receiving-transmitting circuit, an Ethernet receiving-transmitting circuit, an external connector and a power conversion circuit, wherein the CAN bus receiving-transmitting circuit is connected with the FPGA controller and the external connector respectively; the Ethernet receiving-transmitting circuit is connected with the FPGA controller and the external connector respectively; the FPGA controller is connected with the DSP controller; the FPGA controller is used for receiving CAN bus and Ethernet data and waiting for the DSP controller to read, or transmitting CAN bus and Ethernet data written into the FPGA controller by the DSP controller; the DSP controller is used for receiving the CAN bus and Ethernet data from the FPGA controller, and resolving, filtering and forwarding the CAN bus and Ethernet data; and the power conversion circuit is connected with the external connector. The multi-protocol gateway device has the advantages of various types of communication interfaces, large quantity of communication interfaces, high data forwarding real-time performance, high reliability, high flexibility and the like.