36results about How to "Meet the requirements of different applications" patented technology

The invention relates to a folding display device. The display device comprises a flexible display screen and a supporting main body; the supporting main body comprises a plurality of first grooves and a plurality of second grooves; the positions where the multiple first grooves are located are first folding positions, and the positions where the multiple second grooves are located are second folding positions; the folding display device has a first folding state, and when the folding display device is in the first folding state, a display face is wrapped in the supporting main body; or the folding display device has a second folding state, and when the folding display device is in the second folding state, the display face is exposed out of the supporting main body; or the folding display device has a third folding state, and when the folding display device is in the third folding state, a part of the display face is wrapped in the supporting main body, and the other part of the display face is exposed out of the supporting main body. According to the scheme of the folding display device, the folding modes of the flexible display device are more diversified, the requirement for various kinds of applications of the folding display device can be met, and the flexibility of the folding display device is improved.

The invention relates to the field of food packaging and in particular provides a poly(butylene adipate terephthalate) / starch high-barrier composite membrane and a preparation method of the poly(butylene adipate terephthalate) / starch high-barrier composite membrane. The membrane adopts a sandwiched structure and takes a poly(butylene adipate terephthalate) as an outer layer; a sandwiched layer is a starch nano composite material layer; the thickness of the sandwiched layer accounts for 40 percent to 90 percent of the whole composite membrane; the composite membrane with the structure has a good barrier performance and is widely applied to packaging of products which are easy to oxidize, especially packaging of fresh agricultural products and high-oil foods; meanwhile, the production cost of a full degradable packaging membrane is remarkably reduced.

The invention relates to a preparation method of a porous scaffold material and discloses a preparation method of a nano-fibrous silk fibroin-based porous scaffold. The preparation method comprises the following steps: blending a silk fibroin solution and a collagen solution under the temperature of 0-20 DEG C, standing to ensure the complete reaction of collagen and silk fibroin and generate nano-fiber; freezing the mixed solution to obtain a freezing body; performing freeze drying treatment on the freezing body to obtain a nano-fibrous porous scaffold material; and placing the nano-fibrous porous scaffold material in a vacuum drier with water and methanol, or an ethanol aqueous solution at the bottom, vacuumizing, and then standing to obtain the water-insoluble nano-fibrous porous scaffold. The obtained porous scaffold has 10-1000 microns of communicated pores. The pore walls consist of 10-100nm of nano-fibers; and the porous scaffold has similar nanoscale structures and micronscalestructures to extracellular matrix, is suitable for the adhesion and growth of cells and has good biocompatibility.

The invention discloses an efficient multipath laser probe detecting system and method. The detecting system can divide laser sources into multiple paths and transmit the laser sources to multiple to-be-detected points through optical fibers, corresponding spectral signals are transmitted back to the detecting system after laser plasma is generated through excitation, finally, multi-point and simultaneous on-line detection by one laser probe instrument is finally realized, the optical fibers are used for transmitting laser and the spectral signals, accordingly, the anti-jamming capability of a laser probe in the severe environment can be improved, and the application cost of the laser probe instrument can be substantially reduced. The efficient multipath laser probe detecting system is particularly suitable for a large industrial process containing multiple production lines, has the on-line monitoring capability for multiple elements of a product on the production lines and facilitates popularization and generalization of a laser probe technology, and the application cost of the laser probe instrument can be substantially reduced.

The invention discloses a timing system contract triggering and calling method based on blockchain technology, and relates to the technical field of intelligent contracts; and a system contract is executed automatically by each node of each block. A user subscribes the system contract to register a transaction executed in the future or call the contract. The registered contract is called in certain block in a determined way loyally via the system contract. The whole system comprises a blockchain system supporting intelligent contract, system contract codes and a system contract execution system. The system contract defines contents including subscription, buffer memory triggering, an automatic execution inlet and substituted execution. The system contract execution system is realized in the bottom layer of the blockchain. Thus, calling of the automatic execution inlet of the system contract is initiated in a specified time point, and the subscribed contract is triggered and called.

The invention relates to the field of food packaging, and particularly provides a polylactic acid / starch high-barrier composite film and a preparation method thereof. The film is of a sandwich structure; a polylactic acid layer is an outer layer; a sandwich layer is a starch nano composite material layer, and the thickness of the sandwich layer is 50 to 90 percent of the whole composite film. The composite film adopting the structure is high in mechanical performance, biodegradability, flexibility, water resistance and heat sealability and excellent in gas barrier property, can be widely applied to the field of packaging of fresh agricultural products, high-oil-content food and other oxidization-liable products and packaging and application of supermarket shopping bags, garbage bags.

The invention relates to the field of motors, and discloses a method and a system for self-tuning of an encoder zero point of a motor by a servo. The method comprises the following steps: when the motor is used for the first time, outputting a balance torque to the motor by a servo in a band-type brake state according to a load of the motor; controlling a band-type brake to be released; and outputting the torque to the motor in a brake-releasing state and obtaining relative position values of a motor rotor position and an encoder zero point position; and taking the obtained relative position values as encoder deviation angles of the motor, so that the motor can also finish correction of the encoder zero point under the condition of the load; the difficulty that a servo manufacturer utilizes the motor is lowered; the universality and the seamless interchangeability of a driver and the motor are improved; and the compatibility for setting encoder zero points with different brands by the driver is achieved.

The invention relates to a cascaded-bistable-mechanism-based tri-stable or quaternary-stable mechanism and a changing method thereof, and belongs to the technical field of electromechanical systems and devices. The cascaded bistable mechanism is formed by an upper-end bistable mechanism and a lower-end bistable mechanism through a connecting rod and a connecting groove and then connected with a framework, and a positioning rod moves along the vertical direction; when the acting force of the upper-end bistable mechanism on the positioning rod is changed, the positioning rod is balanced at a second stable position under the support of the lower-end bistable mechanism; and when the upper-end bistable mechanism and the lower-end bistable mechanism skip simultaneously, the positioning rod reaches a third stable position. By adjusting the relative positions of the connecting rod and the connecting groove as well as the length of the connecting groove, the changing method changes the travel distance and the logical relation, i.e. a is lower than or equal to c which is equal to b or a is lower than or equal to c which is unequal to b, thus realizing the function transference between tri-stable state and quaternary-stable state. The mechanism has a simple structure, avoids friction and achieves adjustable quantities and positions of the stable states, thus being applicable to multiway switches and multi-stage variants.

The invention relates to an application synchronization and release method and system based on a cloud environment. The method comprises the following steps of generating an on-line code; extracting the on-line code to a configuration file; extracting production host information corresponding to the on-line code, and transferring the production host information to a corresponding production host; performing backup on the on-line code; covering the on-line code after backup; checking the on-line code, and outputting a code check log; restarting a corresponding application; checking the restarted application, and outputting an application check log; and jumping to a release host, and executing circularly until the extraction of all production host information corresponding to the on-line code in a production configuration is completed. According to the application synchronization and release method based on the cloud environment provided by the invention, upload, check, application restart and application check of a plurality of production host codes are supported through one program; and the code upload accuracy and efficiency can be guaranteed, manual intervention in the code upload and application restart process can be reduced, and the on-line success rate can be guaranteed.

The invention belongs to the field of antennas of electronic communication technology, and relates to a package substrate distributed antenna. The antenna structure is distributed and designed on a package and a substrate, low-loss interconnection of electromagnetic signals from the package to the substrate is realized through coupling inside the antenna instead of conductor connection, and the package and the substrate are interconnected through electromagnetic coupling. With application of the radiation structure integrated on the substrate, electromagnetic waves coupled by the package are radiated in a specific mode. The package substrate distributed antenna is multiplexed by changing the substrate, and the multiplexing of the package substrate distributed antenna is realized by changing the radiation structure on the substrate without changing the package. The internal interconnection loss of the antenna is reduced, the limitation of the working frequency band of a chip package distributed antenna is solved, the realization of a millimeter wave low-frequency-band distributed antenna becomes possible, more design freedom degrees and flexibility are brought to the design of the millimeter wave antenna, the design period and cost of the millimeter wave integrated antenna are reduced, and the multiplexing of the package design is realized.

The invention provides a stretchable friction nanogenerator in a single electrode mode and a preparation method thereof. The stretchable friction nanogenerator comprises: organic silicon rubber serving as as a friction material; a spiral steel wire formed in the organic silicon rubber and extending out from one end of the organic silicon rubber, wherein the spiral steel wire is used as an electrode material; and the spiral steel wire is configured to match with the Young modulus of the organic silicon rubber. According to the scheme provided by the invention, the spiral steel wire is used as the electrode material, due to the firmness, the continuous conductivity and the geometric structure of a steel wire electrode, the friction nanogenerator based on the spiral steel wire has high stability, stretchability and customizability. Furthermore, the silicon rubber substrate has good tensile properties, and its properties remain unchanged after being twisted, bent or stretched, thereby being able to meet the requirements of different applications, and being suitable for use on wearable electronic devices.

The invention relates to a multi-band remote communication board of a wireless sensor network. The multi-band remote communication board comprises a microprocessor module, a data acquisition module, aworking frequency band switching circuit module, a high frequency wireless transceiver module, a low frequency wireless transceiver module, a power amplifier circuit module, a low noise amplifying circuit module, an antenna and an antenna matching circuit; the working frequency band switching circuit module is in two-way connection with the microprocessor module and is used for selecting the switching between the high frequency wireless transceiver module and the low frequency wireless transceiver module; the high frequency wireless transceiver module and the low frequency wireless transceiver module are in two-way connection with the working frequency band switching circuit module separately, the high frequency wireless transceiver module and the low frequency wireless transceiver moduleare respectively connected with the power amplifier circuit module and the low noise amplifying circuit module, and the power amplifier circuit module and the low noise amplifying circuit module areconnected with the antenna and the antenna matching circuit. The multi-band remote communication board provided by the invention can be optimized according to national and regional frequency band regulations, data transmission rate, node power consumption and transmission distance to meet the requirements of various different applications.

The invention relates to a cascaded-bistable-mechanism-based tri-stable or quaternary-stable mechanism and a changing method thereof, and belongs to the technical field of electromechanical systems and devices. The cascaded bistable mechanism is formed by an upper-end bistable mechanism and a lower-end bistable mechanism through a connecting rod and a connecting groove and then connected with a framework, and a positioning rod moves along the vertical direction; when the acting force of the upper-end bistable mechanism on the positioning rod is changed, the positioning rod is balanced at a second stable position under the support of the lower-end bistable mechanism; and when the upper-end bistable mechanism and the lower-end bistable mechanism skip simultaneously, the positioning rod reaches a third stable position. By adjusting the relative positions of the connecting rod and the connecting groove as well as the length of the connecting groove, the changing method changes the travel distance and the logical relation, i.e. a is lower than or equal to c which is equal to b or a is lower than or equal to c which is unequal to b, thus realizing the function transference between tri-stable state and quaternary-stable state. The mechanism has a simple structure, avoids friction and achieves adjustable quantities and positions of the stable states, thus being applicable to multiway switches and multi-stage variants.

The invention discloses a force-induced responsive polymer with a single hybrid network structure. Only one cross-linked network is contained, non-dynamic covalent bond covalent cross-linking and non-covalent cross-linking are contained at the same time, the cross-linking degree of the non-dynamic covalent bond covalent cross-linking is above a gel point, and the cross-linked network contains at least two force-sensitive groups; under the action of mechanical force, the force-sensitive groups are subjected to chemical and / or physical changes, and force-induced response is achieved. The singlehybrid network structure provides good structural stability and mechanical properties for the polymer; based on the force-induced responsiveness of the force-sensitive groups, the detection, monitoring and warning effects on the stress, deformation, damage and failure processes are obtained; the non-covalent dynamics of the non-covalent cross-linking may provide self-healing performance. The force-induced responsive polymer can be applied to a stress sensing material, a self-repairing material, a tough material, a shape memory material, a toy material, a functional coating material, an intelligent sensor, a binding material, a plugging material and the like.

The invention discloses a force-induced responsive polymer with a multi-hybrid network structure. The force-induced responsive polymer contains at least two cross-linked networks and also contains non-dynamic covalent bond covalent cross-linking and non-covalent cross-linking at the same time, and the cross-linking degree of the non-dynamic covalent bond covalent cross-linking in at least one cross-linked network is above a gel point; wherein the cross-linked network contains at least one force-sensitive group; under the action of mechanical force, the force-sensitive group is subjected to chemical and / or physical changes, and force-induced response is achieved. The multi-hybrid network structure provides excellent structural stability and mechanical properties for the polymer; based on the force-induced responsiveness of the force-sensitive group, the monitoring and warning effects on the stress, deformation, damage and failure processes are obtained; and non-covalent dynamics may provide self-repairing performance. The force-induced responsive polymer can be applied to a stress sensing material, a self-repairing material, a tough material, a shape memory material, a toy material,a functional coating material, an intelligent sensor, a binding material, a plugging material and the like.

The invention discloses a new method for preparing shape-controllable high polymer nanospheres and nanorods by virtue of an ultrasonic-assisted soap-free click polymerization reaction. The method comprises the following steps: dissolving a certain amount of acetenyl pyridine and polyazido crosslinking agent in a proper solvent; with Cu(PPh3)3Br as a catalyst, performing click polymerization by controlling the ultrasonic frequency and reaction temperature to obtain polymer nanospheres or nanorods with clickable functional group on the surface. According to the method disclosed by the invention, the polymer nanospheres and nanorods are prepared by virtue of ultrasonic-assisted click polymerization, a surfactant is not required in the polymerization process, and the process is environment-friendly; the shape of the prepared polymer nanoparticles can be selectively controlled by changing the solvent system and the ultrasonic assist mode; meanwhile, with clickable azido and alkynyl on the surfaces of nanoparticles, further functionalization is facilitated, and the method has broad application prospect in the fields of new material preparation, drug delivery, fluorescence imaging and the like.

The invention discloses a cationic polymerization method. The cationic polymerization method includes the steps that under the solution polymerization condition, in a polymerization solvent, monoolefine shown in the formula IV (please see the specification), conjugated diene shown in the formula V (please see the specification)and components in an initiator system are in contact, wherein the initiator system contains a compound which can provide carbocations, lewis acid shown in the formula II (please see the specification) and an activator shown in the formula III (please see the specification), and the activator is selected from the compound shown in the formula I-1 (please see the specification) and the formula I-2 (please see the specification). Compared with the condition that only a C+ / lewis acid initiator system is adopted, the initiating efficiency of the method is high, and the higher polymer yield can be obtained at the higher polymerization rate; by adjusting the composition of the initiator system and the composition of the polymerization solvent, polymers with different molecular weights can be obtained under different polymerization conditions; in addition, polymerization can be carried out at higher temperature, and the energy consumption in the polymerization reaction process can be reduced.

The invention discloses a cationic polymerization method. The method includes the step that under the solution polymerization condition, monoolefine shown in the formula II and conjugated diene shown in the formula III make contact with all components in an initiator system in a mixed solvent composed of alkane and haloalkane, wherein the initiator system contains a compound capable of providing protons, lewis acid and an activating agent, and the activating agent is selected from a compound shown in the formula I-1 and a compound shown in the formula I-2. Compared with a pure H+ / lewis acid initiator system, initiation efficiency of the method is obviously improved, and the higher polymer yield can be obtained at higher polymerization speed. Polymers with different molecular weights can be obtained under different polymerization conditions by adjusting the content and the variety of the activating agent in the initiator system. Besides, the method can achieve polymerization at higher temperature and effectively reduce energy consumption in the polymerization reaction process. Please see the formulas in the description.

The invention discloses a force-induced responsive polymer with a single hybrid network structure. The force-induced responsive polymer only contains one cross-linked network, and simultaneously contains non-dynamic covalent bond covalent cross-linking and non-covalent cross-linking, wherein the cross-linking degree of the non-dynamic covalent bond covalent cross-linking is above a gel point, andthe cross-linked network contains a force-sensitive group; under the action of mechanical force, the force-sensitive group is subjected to chemical and / or physical changes, and force-induced responseis achieved. The single hybrid network structure provides good structural stability and mechanical properties for the polymer; based on the force-induced responsiveness of the force-sensitive group, the detection, monitoring and warning effects on the stress, deformation, damage and failure processes are obtained; and the non-covalent dynamics of the non-covalent cross-linking may provide self-healing performance. The force-induced responsive polymer can be applied to a stress sensing material, a self-repairing material, a tough material, a shape memory material, a toy material, a functional coating material, an intelligent sensor, a binding material, a plugging material and the like.

The invention discloses a cationic polymerization method. The method includes the step that under the solution polymerization condition, monoolefine shown in the formula II and conjugated diene shown in the formula III make contact with all components in an initiator system in a mixed solvent composed of alkane and haloalkane, wherein the initiator system contains a compound capable of providing protons, lewis acid and an activating agent, and the activating agent is selected from a compound shown in the formula I-1 and a compound shown in the formula I-2. Compared with a pure H+ / lewis acid initiator system, initiation efficiency of the method is obviously improved, and the higher polymer yield can be obtained at higher polymerization speed. Polymers with different molecular weights can be obtained under different polymerization conditions by adjusting the content and the variety of the activating agent in the initiator system. Besides, the method can achieve polymerization at higher temperature and effectively reduce energy consumption in the polymerization reaction process. Please see the formulas in the description.