302results about How to "Reversible" patented technology

The invention discloses a visible and reversible fluorescent probe which comprises a cyanine fluorescent group and a benzothiazole group, and the general formula of the probe is shown in the description. The preparation method of the reversible fluorescent probe comprises the following steps: (1) dropwise adding phosphorus oxychloride into salicylaldehyde and paraformaldehyde for reaction, so as to obtain a product 1; (2) enabling the product 1 and hexamethylene-tetramine to react, so as to obtain a product 2; (3) enabling the product 2 and 2-aminobenzenethiol to react at the room temperature, so as to obtain a product 3; (4) enabling the product 3 and a compound 4 to react, so as to obtain the visible and reversible fluorescent probe. According to the ratiometric fluorescent probe provided by the invention, obvious color variation can be found out under natural light or an ultra-violet lamp, and the qualitative detection of sulfur dioxide gas can be implemented under natural light or a hand-held ultra-violet lamp, so that the operation is simple, high convenience and quickness are achieved, and the effect is remarkable; the fluorescent probe can effectively prevent interference from other impurities in samples, and is excellent in selectivity; in addition, the cumbersome pre-processing process of samples is avoided, so that the detection efficiency is high.

The invention discloses a double-network hydrogel based on PEG (polyethylene glycol) and polysaccharides as well as a preparation method and an application of the double-network hydrogel. The chemical-physical/chemical double-network hydrogel is formed under the hydrogen bond interaction between a first chemical network and a second physical/chemical network; the first chemical network is formed by a chemical reaction of a PEG derivative 1 and a PEG derivative 2; the second physical/chemical network is formed by either crosslinking of polysaccharides or derivatives thereof or by interaction between the polysaccharides or derivatives thereof and a crosslinking agent. The high-strength chemical-physical/chemical double-network hydrogel with good self-recovery capability and good biocompatibility has potential application in the following fields: drug sustained-release materials, tissue engineering scaffolds, medical sponge, medical implants and surface coatings of the medical implants.

The invention provides a supply chain information management system and management method, relating to the field of information management. The invention aims to solve the problem that a single time delivery process is irreversible, a delivery process is repeated, and cargos can be not subjected to distinguished delivery according to requirement in one time of delivery in a present cargo delivery method is solved. According to the supply chain information management system and management method, firstly the cargos are classified before loading, the cargos are classified according to approximation areas, then a suitable path is planned according to the distribution of the cargos, after the classification, the loading is planned according to a sequence, a cargo corresponding to a firstly pass site is loaded at last so as to rapidly unload the cargo. And, in order to find a suitable vehicle to carry out cargo transfer in the delivery process, the loaded cargos need to be described carefully such that the accommodation space and load-carrying capability of other vehicles can be judged conveniently. The supply chain information management system and management method are especially suitable for the information management in the delivery process of medical system medicines or apparatuses.

The invention discloses a high-strength aluminum alloy subjected to carbonitride complex treatment and a preparation method thereof. The alloy comprises the following components in percentage by weight: 2.0-3.2 percent of Cu, less than or equal to 0.2 percent of Mn, 0.2-0.5 percent of Mg, less than or equal to 0.01 percent of Cr, less than or equal to 0.01 percent of Ni, less than or equal to 0.1 percent of Zn, less than or equal to 0.15 percent of Ti, less than or equal to 0.5 percent of Si, less than or equal to 0.5 percent of Fe, and the balance of Al and inevitable trace impurities, wherein the carbonitride MX(C,N)Y is 0.05-2.5 percent of total mass of the furnace burden. The aluminum alloy has the characteristics of high strength and good casting performance.

The invention discloses a cutter for cutting a rolling brush entanglement on a cleaning appliance. The cutter comprises a blade and a cutter rest, wherein the blade is used for cutting the entanglement on the peripheral wall of a rolling brush, connected with an annular cutter head and arranged on the inner ring of the annular cutter head; and the annular cutter head is nested into the cutter rest and has the degree of freedom of rotating along the own axis in the cutter rest, and a limiting structure for limiting axial movement of the annular cutter head is arranged between the cutter frame and the annular cutter head. At least one groove extending axially is formed in the peripheral wall of the rolling brush, the blade extends radially and is inserted into the groove. A fixing and guiding mechanism is provided with a sliding rod arranged in parallel beside the rolling brush and guided axially and a lead screw for outputting axial displacement, and the cutter rest is provided with holes matched with the sliding rod and the lead screw. The invention further provides a cleaning appliance. The cutter automatically cuts the entanglement without exposing the rolling brush, thereby improving the cutting environment and improving the cleaning effect and efficiency.

The invention provides a multiscale global sampling method for filling an image void, which mainly comprises the following steps: segmenting an input image into a geometrical layer and a texture layer, and recovering the geometrical layer of the image void area by tensor voting; carrying out multiscale grid segmentation on the image void area to form a multiscale image structure of the void area, defining a posterior probability model for the void filling problem on the multiscale image structure, and calculating the globally optimal solution of the posterior probability model by a Markov chain Monte Carlo method based on simulated annealing; and synthesizing missing image information of the image void area according to the void area integral sampling set corresponding to the globally optimal solution. The invention can search out a globally optimal image block to be attached to the void area, so as to fill or recover the void generated in the virtual scene object extraction and scene edition process, thereby solving the problem of unfavorable filling effect for a complex image or large void area condition due to the irreversible void filling process.

The invention relates to the technical field of safety control of a chip JTAG test port, in particular to a safe JTAG connection authentication system and an authentication method thereof. The connection authentication system is equipped between a JTAG test port and a chip to be tested and composed of an access module and an authentication module, which have interactive interfaces. The authentication method comprises (A) one side of the access module and the authentication module gives an authentication request, the other side generates a random number RN; (B) the access module calculates an authentication X' to SN by using a local private key K', and transmits X' to the authentication module; (C) the authentication module calculates an authentication X to RN by using a local private key K; (D) the authentication module compares X and X' and decides whether to open a TAP port at chip end; (E) the authentication module returns the authentication result to the access module. The invention can achieve JTAG port automatic identification of a legal access object and starting or closing JTAG function with simple manner, so as to achieve the purpose of preventing internal logic of the chip being stolen.

The invention discloses a high-fidelity H.264/AVC video three-coefficient reversible steganography method which comprises two parts of an embedding method and an extraction method. The embedding method comprises the steps of: according to an H.264/AVC video standard, carrying out coding operation on a YUV video sequence frame by frame to obtain quantized residual DCT coefficients of all macro blocks in a current coded frame; sequentially traversing a plurality of macro blocks in the current coded frame according to a sequence from top to bottom and from left to right, and selecting 4*4TU sub-blocks of which texture-complexity is greater than or equal to a set threshold; and according to a three-coefficient embedding strategy, completing embedding, and carrying out entropy coding to obtaina compressed video after embedding. According to the invention, a three-coefficient modulation strategy combines information of a vacuum value, a coefficient translation path and the like, the quantized residual DCT coefficients which do not need to be modified are filtered out, useless modification of a carrier is reduced, embedding efficiency of an algorithm is improved, and video quality and algorithm safety are ensured.

The invention discloses a rolling brush entanglement cutting device for a cleaning appliance. The device comprises a blade and a fixing and guiding mechanism, wherein the blade is used for cutting the entanglement on the peripheral wall of a rolling brush; and the fixing and guiding mechanism is independently arranged outside the rolling brush and used for fixing the blade and guiding moving and cutting of the blade along the axis of the rolling brush. At least one groove extending axially is formed in the peripheral wall of the rolling brush, and the blade is inserted into the groove. The blade is connected with an annular cutter head, arranged on the inner ring of the annular cutter head, arranged in a manner of extending in the radial direction of the annular cutter head, and provided with cutting edges along two axial ends of the annular cutter head. The fixing and guiding mechanism is provided with a sliding rod arranged in parallel beside the rolling brush and guided axially and a lead screw for outputting axial displacement, and the cutter rest is provided with holes matched with the sliding rod and the lead screw. The invention further provides a cleaning appliance. The device automatically cuts the entanglement without exposing the rolling brush, thereby improving the cutting environment and improving the cleaning effect and efficiency.

The invention provides a self-assembled super-molecular polymer nano-filtration membrane based on graphene and a preparation method thereof. The specific method comprises: taking a polyacrylonitrile super-filtration membrane or a sulfonated polyethersulfone super-filtration membrane which are subjected to alkali modification treatment as a base membrane and fixing the base membrane into a container with a porous supporting layer; putting a membrane surface upward; adding a covalent cationic polyelectrolyte solution and a super-molecular polymer solution into the container respectively; pressurizing and assembling; sufficiently washing with de-ionized water and repeating for a plurality of times; putting the membrane into a drying oven for carrying out heat treatment to obtain a multilayered super-molecular polymer nano-filtration membrane; finally, immersing the multilayered super-molecular polymer nano-filtration membrane into a graphene oxide solution; pressurizing and assembling; sufficiently washing with de-ionized water; putting the multilayered super-molecular polymer nano-filtration membrane into the drying oven for carrying out heat treatment to obtain the self-assembled super-molecular polymer nano-filtration membrane based on the graphene. The nano-filtration membrane prepared by the preparation method provided by the invention contains a super-molecular polymer so that the controllability of the nano-filtration membrane is improved and the separation effect is good; the preparation method is simple and efficient and does not utilize an organic solvent, so that the protection method is green and environment-friendly.

The invention discloses a method for bundling the parallel light to parallel light or focusing light, and a device for gaining high energy and high beam current, which belongs to the technical field of optics, especially the field of solar application. The method is to realize direct bundling from the parallel light to parallel light or focusing light by the direct bundling function of the reflective panel combination of double positive cones which are appropriately fixed and form a direct bundling (parallel light or focusing light) device of the parallel light with the sunshine tracking system and output transmission directional system controlled by plane mirror, which is used for heating, food and beverage, disinfection, etc. A re-bundling system is formed by the appropriate combination of the bundling method provided in the invention and other bundling methods (parabolic mirror and lens, large lens and small lens, large and small parabolic mirror, etc.) to gain a high energy and high beam current device used for welding, cutting and blinding by scanning or functioned as other military attack, etc. Simultaneously inject a plurality of parallel light directly bundling devices into a fixed (without tracking system) parallel light directly bundling device from parallel light, and gain the high energy by rebuilding used for metallurgy and power generation, etc. In the same way, simultaneously inject a plurality of laser beam into a fixed (without tracking system) parallel light or focusing light directly bundling device from parallel light to gain high-energy laser beam by rebuilding used for industry or national defense.

The invention discloses a decryption and recovery method of document object model (DOM) raster data, and belongs to the field of geography information safety. The decryption and recovery method of the DOM raster data comprises the following steps of (1) a key generation process: confirming a data range, confirming data conversion amount, computing linear and nonlinear transformation parameters; (2) a decryption process: reading a key file, processing each pixel according to the key file, and saving raster data after decryption; and (3) a recovery process: opening the raster data after decryption, and processing each pixel in a circular mode. Aiming at a safety protection problem of the DOM raster data, the decryption and recovery method of the DOM raster data is capable of carrying out decryption to the data according to the key under the premise of ensuring that no change occurs in a data topological relation, and the data after decryption can be recovered according to the key. The decryption and recovery method of the DOM raster data has the advantages of having randomness, gradual change property, reversibility and the like, improving reliability of decryption of the DOM raster data, completing a theory and method system of geographic information safety protection, and being applicable to public release of the DOM raster data, and the like.

A process for efficiently producing an agglomerate resulting from removal of impurities from a water-base latex of rubbery polymer particles or dry powder thereof and producing a dispersion having rubbery polymer particles dispersed in an organic solvent, and a process for efficiently producing a resin composition of low impurity content, in which the state of dispersion of rubbery polymer particles is excellent, from the above dispersion. In particular, a rubbery polymer particle agglomerate of low impurity content is obtained by first mixing a water-base latex of rubbery polymer particles with an organic solvent exhibiting partial solubility in water, bringing the resultant mixture into contact with water to thereby form a rubbery polymer particle agglomerate, and thereafter separating the water phase from the agglomerate/water phase mixture. Further, a resin composition of low impurity content having rubbery polymer particles favorably dispersed is obtained by first adding an organic solvent to the above agglomerate, mixing the obtained dispersion with a polymerizable organic compound having a reactive group, and thereafter distilling off volatile components.

The invention relates to a fire detector of complex linear temperature sensing and the alarm method of data fusion. It consists of a linear temperature sensing element A, a linear temperature sensing B, a device of measuring electric signal. The described linear temperature sensing element A and linear temperature sensing element B are set together in parallel. The linear temperature sensing element A and linear temperature sensing element B has a detector and two electrical parameters signal output terminals respectively. The descried electrical parameters signal output terminal is connected with the device of measuring electric signal. The electrical parameters signals which are output from the described linear temperature sensing element A and linear temperature sensing element B output are not equivalent. The present invention can eliminate the influence of the heated length of linear temperature sensing detector to the fire alarm function, improve the alarm accuracy and effectively reduce the mistaken rate of detector.

The invention discloses an ovarian cancer specifically targeted biodegradable amphiphilic polymer, a polymer vesicle prepared from the amphiphilic polymer and application of the amphiphilic polymer in ovarian cancer targeted therapy. The polymer vesicle obtained by utilizing the biodegradable amphiphilic polymer has biodegradability and can be used for controlling a drug release system; under the condition of no addition of a crosslinking agent, self crosslinking can be carried out, and a stable chemical crosslinked structure is formed, so that stable long circulation in a carrier supporting body can be realized, side effects of the crosslinking agent are avoided, and the crosslinking agent also has reduction sensitivity, is rapidly decrosslinked in cells and releases maximum drugs, so as to efficiently and specifically kill cancer cells to effectively inhibit the growth of ovarian tumors while no toxic or side effect is caused; more importantly, an extra crosslinking agent does not need to be added, so that clinical application production of a nano drug can be facilitated, the production cost is reduced, the final purity of the nano drug is also improved, and the biocompatibility of the nano drug is improved; and meanwhile, interference of the crosslinking agent on some drugs is avoided.

The invention relates to a preparation method for quantum dot by using an ultra-branch type polymer supermolecule nano-reactor, which belongs to the chemical field. The method of the invention adopts a principle that the assembling precedes the sealing, the ultra-branch type polymer and long chain fatty acld can become amphiphilic supermolecule nano-micelle by self-assemble after compounding, and then quantum dots with homogeneous dimensions can be prepared by using the supermolecule nano-micellse in an oil-water biphasic system. The synthetic CdS quantum dots of the invention are provided with a narrow size distribution and a good stability. Because the dimensions of ultra-branch type polymer and long chain fatty acld are adjustable, the dimension and the shape of the obtained supermolecule nano-micelle are easy to be controlled, so that the supermolecule nano-micelle can be used for preparing quantum dots with various dimensions and shapes. In addition, the supermolecule nano-micelle is provided with invertibility, the micelle can be destroyed through adding spasmolytol or adjusting pH value, thus the CdS quantum dots synthesized in an organic system can be transferred into an aqueous phase system.

The invention relates to a variable-buoyancy buoyancy tank and application thereof. The variable-buoyancy buoyancy tank comprises a shell, exhaust valves and water inlet valves, and is provided with a first main bin, two first water pressure bins and two second water pressure bins, and the buoyancy of the buoyancy tank is adjusted through the exhaust valves and the water inlet valves; and the variable-buoyancy buoyancy tank can be utilized for completing splicing and sinking of long-distance pipelines. According to the variable-buoyancy buoyancy tank and application thereof, the buoyancy magnitude can be controlled in real time, and the variable-buoyancy buoyancy tank is multifunctional and particularly suitable for construction of pipelines in water conservancy projects; and by adoption of a pipeline sinking method, the construction process is simple, the safety performance is high, required ships are few, the adjustability is high, and control is convenient.

The invention discloses a high-fluidity, scratch-resistant and low-temperature-folding-resistant ABS/TPU alloy material which is prepared from the components by weight percentage of 60 wt%-85 wt% of ABS resin, 10 wt%-30 wt% of TPU and 1 wt%-10 wt% of compatilizer; the preparation method comprises the steps that the ABS resin and the TPU are dried under the condition of 85 DEG C to 100 DEG C for 2-4 hours, then the ABS resin and the TPU are fully mixed with other component raw materials according to the ratio by a high-speed mixer for 2-10 minutes, the mixtures is then transmitted to a double-screw extruder by a precision metering feeding device, and a product is obtained through mixing, extrusion, bracing, cooling and grain cutting; the prepared ABS/TPU alloy material has excellent scratch resistance, low low temperature folding resistance and high fluidity, the preparation method is simple in process, convenient to operate and suitable for industrial production, and the ABS/TPU alloy material can be applied to the fields of small electronic consumer products, electric tools, computer keys, automobile bumpers and the like.

The invention discloses a distributed photovoltaic power generation hydrogen energy storage system and method. The distributed photovoltaic power generation hydrogen storage system comprises a solar cell panel, wherein the solar cell panel is electrically connected with an inverter and a hydrogen energy storage unit by a master controller, the master controller is used for inputting a part of electric energy obtained by conversion of the solar cell panel to the inverter for normal power utilization of a household load, remaining electric energy is stored by a metal hydride energy storage unitwith relatively high absorption performance and then power is supplied. Hydrogen is used as a hydrogen energy storage unit, the remaining electric energy given out in a day is introduced to an electrolytic groove electrolyte to manufacture the hydrogen, the hydrogen is temporarily stored in a hydrogen storage material with high absorption performance, the hydrogen storage material is used for releasing the hydrogen during power utilization at night, the hydrogen is introduced to a hydrogen fuel cell for power generation, the electric energy is converted to chemical energy and then is convertedto the electric energy for effective utilization, the distributed photovoltaic power generation hydrogen storage system is clean and environment-friendly, is high in energy utilization rate and is easy to build.

The invention discloses a multi-beam millimeter wave phased array chip and a manufacturing method. The chip comprises N antenna connecting ends, N reversible first couplers, a plurality of phase shiftattenuators, M reversible second couplers and M signal connecting ends, k polarization direction wave beams of the frequencies are transmitted to M signal connecting ends, and the signal connecting ends are connected with the first ends of the second couplers in a one-to-one correspondence mode; the N first couplers are divided into K groups, and each group transmits a polarization direction wavebeam; a phase shift attenuator is connected between the second end of the first coupler and the second end of the second coupler on the beam transmission channel in the same polarization direction; when the chip is a transmitting chip, the chip also comprises N power amplifiers; and when the chip is a receiving chip, the chip also comprises N low-noise amplifiers. Different carrier frequency beams in the same polarization direction share the same power amplifier or the same low-noise amplifier corresponding to the array element, the number of the power amplifiers or the low-noise amplifiers is reduced, and the integration level of the phased array chip is improved.

The invention discloses a superamphiphobic self-cleaned fluorosilicone coating material which comprises raw materials, namely a fluorosilicone amphiphobic treatment agent and a solvent, wherein the fluorosilicone amphiphobic treatment agent is prepared from an amino alkyl silane coupling agent and a hexafluoro oxygen-containing propane tripolymer in a mole ratio of 1 to 1 through reactions at onestep; the solvent is an alcohol or water-alcohol mixed agent. The invention further discloses a method for preparing a superamphiphobic self-cleaned coating from the coating material. The method comprises the following steps: brushing or spraying the prepared coating material to the surface of a substrate, so as to obtain thesuperamphiphobic self-cleaned coating after the solvent is completely volatilized. The fluorosilicone coating material disclosed by the invention is simple in preparation process, a small number of types of raw materials with low cost are used, in addition, the material isfree of toxic and/or side effects on human beings or the environment. The prepared coating has superamphiphobic and self-cleaned functions, meanwhile has pH value stability and durability, and in addition is reversible in coating process, free of damage to base material surface colors or air permeability, applicable to nearly all building base material surfaces, and applicable to on-scale industrial production.

The invention discloses a BCD (binary-coded decimal) decimal counter based on reversible logic. According to the BCD decimal counter based on reversible logic, one FRG (Fredkin gate) gate and one FG (Feynman gate) gate are firstly cascaded to form a reversible D trigger; one JK trigger is constituted by one FRG gate, one NOT and the reversible D trigger; four reversible JK triggers, one F5 gate, two TOF (Toffoli gate) gates, two FG gates and an NG (new gate) gate are finally cascaded to form a reversible BCD synchronous decimal counter; and four reversible JK triggers, two F3 gates, two FG gates and one TOF gate are connected to form a reversible BCD asynchronous decimal counter. The BCD decimal counter based on reversible logic has the advantage that the system energy consumption is reduced.