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.

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 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 method and a device for inviting a friend to join a social group. The method comprises steps of extracting a heat portrait of a friend from a photograph in an album, obtaining information of friend to be invited which is provided according to the head portrait of the friend, and transmitting an invitation to the friend to be invited according to the information of the friend to be invited in order to invite the friend to join the social group. The invention can invite the friend to join the social group through extracted head portrait of the friend according to the extracted head portrait of the friend and provides the convenience to the user to invite the friend.

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 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 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 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.