25results about How to "Compatible" patented technology

The invention discloses an E3 ubiquitin enzyme mutant as well as modification and a protein targeted degradation system and application thereof, and particularly relates to a series of targeted protein degradation enhanced E3 ubiquitin enzymes (Trim21-N) and a modification method thereof, the E3 ubiquitin enzymes (Trim21-N) are obtained by modifying a wild type Trim21 (wtTrim21) protein structural domain, and the E3 ubiquitin enzymes comprise Trim21-a, Trim21-b, Trim21-c, Trim21-d, Trim21-e and Trim21-f. The efficiency of degrading the target protein through the ubiquitin proteasome is remarkably improved, and the method has the characteristics of strong endogenous and exogenous universality, high specificity, ubiquitin proteasome dependence, low cytotoxicity, strong cell compatibility and the like on the degradation of the target protein. The invention provides E3 ubiquitin enzyme (Trim21-N) based on a targeted protein degradation enhancement version and an exogenous fluorescence report degradation system of the E3 ubiquitin enzyme (Trim21-N), preferably Trim21-e with the optimal degradation effect, and the E3 ubiquitin enzyme (Trim21-N) is named as delta Trim21. The invention further provides an endogenous protein degradation system based on the delta Trim21. The method has the characteristics of high specificity, rapidness and small module, so that the method can be used for researching various biological and disease mechanisms, including the fields of cell targeted therapy, cell mechanism exploration, genetic engineering and the like.

The invention provides a first-order mode all-optical switch chip based on a polypyrrole nanoparticle array and a preparation method of the first-order mode all-optical switch chip. The chip comprises a substrate layer, an asymmetric Mach-Zehnder interferometer type waveguide core layer is arranged on the substrate layer, and an upper wrapping layer with the refractive index lower than that of an MZI type waveguide is wrapped outside the waveguide core layer. The invention has the advantages of compact structure and easy integration, and can be widely applied to optical communication networks and optical signal processing systems. Compared with a traditional thermo-optical switch, the all-optical switch chip has the advantages that on the basis of omitting an electrode structure, the preparation method is simple, the response speed is higher, and the power consumption is lower.

The invention relates to the field of special films, in particular to a polypropylene-based ultrathin special film and a preparation method thereof. The film is prepared from the following components in parts by weight: 80 to 90 parts of isotactic polypropylene resin, 10 to 20 parts of syndiotactic polypropylene resin, 5 to 10 parts of a composite modifier, 5 to 10 parts of a compatilizer, 3 to 8 parts of amino modified nano silicon dioxide, 0.1 to 0.5 part of an antioxidant, 0.3 to 0.7 part of a lubricant, 0.1 to 0.3 part of an anti-hydrolysis agent, 0.1 to 0.3 part of a nucleating agent and 0.05 to 0.3 part of a light stabilizer. The special film prepared by the preparation method disclosed by the invention can still keep excellent mechanical bearing capacity under the ultrathin specification with the thickness of less than or equal to 20 microns, and the mechanical property, the flame retardant property, the weather resistance, the processability and the interfacial compatibility are synergistically improved.

The invention relates to a supported rock slope greening structure and a construction method thereof. The method is suitable for the technical field of environmental protection. The technical problem to be solved by the invention is to provide a supported rock slope greening structure and a construction method thereof. According to the technical scheme, the supported rock slope greening structure comprises drip irrigation pipelines which are installed on a slope bedrock face through fixing pieces, arranged in a grid shape and used for irrigating green plants on the slope and providing growth and attachment support for the green plants; the planting holes are formed in the side slope bedrock surface, the planting holes correspond to pipeline nodes of the drip irrigation pipelines, and undershrub plants are planted in the planting holes; the planting frames are arranged on the surface of the side slope, the planting frames correspond to the grids of the drip irrigation pipeline, and climbing plants are planted in the planting frames; the adjusting assembly is arranged in the drip irrigation pipeline and used for controlling an irrigation object of the drip irrigation pipeline.

The invention belongs to the technical field of coal mine underground individual protection, and particularly relates to a mine underground multi-working-condition composite phase change material cooling garment which comprises a cooling garment body, a plurality of cold storage bag side pockets and a plurality of cold storage bags, and the cold storage bag side pockets are arranged at the chest position, the abdomen position and the lower portion of the back of the cooling garment body respectively. The cold storage bag side pocket is used for containing a cold storage bag, and a composite phase change material is packaged in the cold storage bag. The invention further provides a manufacturing method of the mine underground multi-working-condition composite phase change material cooling clothes. The thermal comfort and safety of operators in the high-temperature environment are improved, on-demand regulation and control of the cooling efficiency are achieved through modular design, the effective cooling time is remarkably prolonged, and energy consumption and maintenance cost are reduced. The cooling suit can stably operate under the continuous underground working condition, has good environmental adaptability and reliability, is suitable for different actual working conditions, and has important popularization value and application prospects.

The application provides a high-haze PETG matt transfer film and a preparation method thereof, and relates to the technical field of matt transfer film preparation. The high-haze PETG matt transfer film comprises an upper surface layer, a core layer and a lower surface layer. The upper surface layer comprises the following raw materials in parts by mass: 40-60 parts of PETG, 1-3 parts of an antioxidant and 0.5-2 parts of an antistatic agent. The core layer comprises the following raw materials in parts by mass: 60-90 parts of PETG, 5-12 parts of a matt agent, 0.5-2 parts of a nucleating agent and 0.1-1 parts of an antioxidant. The lower surface layer comprises the following raw materials in parts by mass: 40-60 parts of PETG and 1-5 parts of an opening agent. The PETG matt transfer film prepared by the application has high haze.

The present application relates to air treatment equipment technical field, particularly to a mobile air conditioner and a control method thereof. The present application provides a control method of a mobile air conditioner, the mobile air conditioner comprising a condenser, a water tray, a water hitting device and a water pumping device, the water hitting device being used to hit water in the water tray to the condenser, and the water pumping device being connected to the water tray. The control method of the mobile air conditioner comprises: obtaining the liquid level in the water tray; and determining the operating state of the water pumping device and the water hitting device according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor. The present application provides a set of drainage control logic, which is applicable to the fixed frequency mobile air conditioner heat pump model, and has compatibility, and can simultaneously consider the refrigeration mode and the heating mode. Therefore, compared with the prior art, the present application solves the problem of complex drainage control logic of the existing mobile air conditioner.

The application discloses a microwave communication material with low dielectric constant and low microwave loss which is prepared by mixing a base body and ceramic hollow microspheres, wherein the base body is an engineering plastic or a ceramic matrix composite base body, and the ceramic hollow microspheres are micron-sized mullite / quartz composite ceramic hollow microspheres; the material is used for manufacturing a 5G antenna cover, a radio frequency base material or a high-frequency PCB, and has the advantages that the micron-sized mullite / quartz composite ceramic hollow microspheres greatly reduce the overall density of the composite material, realize lightweight of the antenna cover and the radio frequency base material, and cooperate with forming processes such as segmented pressurization, step curing and slow cooling, so that the internal stress of the material is significantly reduced, the size stability of the high-frequency PCB and the antenna cover is greatly improved, and the problems of easy warping, deformation and poor precision of traditional inorganic fillers are solved.

The present invention relates to an in-situ fretting corrosion fatigue testing machine and method based on synchrotron radiation diffraction and three-dimensional imaging, and belongs to the field of fretting corrosion fatigue testing. The testing machine includes an axial fatigue loading system, a fretting loading system and a corrosion environment control system; the axial fatigue loading system includes a driving device, a load control device, and a load sensing device; the load sensing device is used to measure the axial force and normal force in real time; the driving device is used to drive the load control device to enable the load control device to achieve axial displacement; the load control device is used to perform axial fatigue loading on the sample; the fretting loading system includes a fretting wear device. The testing machine is used to realize the real-time three-dimensional imaging characterization of material wear spots and crack shapes under fretting corrosion environment and the characterization of residual stress evolution law.

This invention provides a video steganography method and system, belonging to the field of video processing technology. The system includes: responding to a user's request to embed private information, determining a target video steganography algorithm from multiple video steganography algorithms based on a user-preset target video compression standard, and using the target video steganography algorithm to embed preset private information into a target video to generate a carrier video; responding to a user's request to extract private information, determining the target video steganography algorithm based on the steganography algorithm attributes of the carrier video, and extracting the preset private information from the carrier video. The video steganography method and system provided by this invention can implement the video steganography process according to a user request-response mechanism, making it more flexible; and it can be applied to different video compression standards, overcoming the limitation that traditional video steganography algorithms are often only applicable to a specific video compression standard.

The present invention discloses a numerical iteration method based on a chemical non-equilibrium source term limiter, which relates to the field of aerodynamics technology, including: constructing and adding a source term limiter in a time advancement format, and using different time layer source term calculation values ​​to replace the current time calculation source term through flow field characteristics and flow instantaneous state identification, thereby simplifying the source term calculation process, saving calculation time and improving calculation efficiency. The present invention can significantly reduce the repeated calculation process of chemical source terms and reduce the overall time consumption of chemical non-equilibrium flow simulation, which is of great help to improve the performance of high-speed CFD simulation software in terms of calculation efficiency.

The present application proposes a mixed positive electrode material, a positive electrode sheet and a preparation method, a battery and an electric device. The mixed positive electrode material of the present application comprises a mixed component of a lithium iron phosphate chemical system material and a ternary chemical system material. The lithium iron phosphate chemical system material has an average specific surface area of ​​no more than 10m 2 / g of secondary particles. The mixed positive electrode material of the present application improves the processing performance of the mixed positive electrode material by introducing low specific surface area secondary particles of lithium iron phosphate, realizes that the slurry is not easy to agglomerate, and the two materials are well compatible. When the mixed positive electrode material of the present application is used to prepare the positive electrode sheet, it can effectively improve the uniform distribution of the positive electrode material on the positive electrode sheet, which is conducive to adjusting the distribution uniformity of the sheet resistance, thereby improving the electrochemical performance of the battery.

The invention discloses a PAA-based conductive binder for a silicon-based negative electrode of a lithium ion battery and a preparation method of the PAA-based conductive binder, and belongs to the technical field of lithium batteries. The method comprises the following steps: respectively dissolving polyacrylic acid and ferric citrate in deionized water to prepare a PAA aqueous solution and a ferric citrate aqueous solution; and adjusting the pH value of the PAA solution by using ammonia water. And dropwise adding the ferric citrate aqueous solution into the PAA aqueous solution to form a PAA-FeCA cross-linked network with incompletely dissociated Fe < 3 + >, thereby obtaining the PAA-based conductive binder for the silicon-based negative electrode of the lithium ion battery. The carboxylated carbon nanotubes can be further added into the PAA-based conductive binder for the silicon-based negative electrode of the lithium ion battery. The lithium ion battery binder has good conductivity, and a binder network effectively buffers volume expansion of silicon, so that a silicon negative electrode shows good cycle performance and rate capability, and the lithium ion battery binder has good application prospects in lithium ion battery silicon-based materials.

This invention discloses a vortex tube refrigerator and a method for improving the performance of a heat pipe in permafrost. The method monitors the ambient temperature: when the temperature is below the critical value for low-temperature stability in permafrost, it enters an acceleration mode, where a high-pressure air pump draws air to enhance convective heat dissipation in the condensing section; when the temperature is above the critical value, it enters a pressurization mode, where compressed air generates a cold airflow through the vortex tube and is input into the condensing section of the heat pipe through heat exchange tubes, forcibly activating the gas-liquid phase change cycle inside the heat pipe; a proportional-integral control law is used to adjust the opening of the hot-end regulating valve to stabilize the cooling temperature below the target value; simultaneously, the exhaust outlet airflow is directed to a wind turbine to increase power generation, and it also features active defrosting. This invention achieves efficient year-round operation of the heat pipe, reducing cooling energy consumption and engineering costs.

The invention relates to the technical field of semiconductor devices and devices, in particular to an LED chip and a preparation method thereof, and the preparation method comprises the following steps: 1) photoetching: photoetching a required pattern on an epitaxial layer; the top of the N-GaN layer, the multi-quantum hydrazine layer and the P-GaN layer form an N region of the LED chip, and the bottom of the N-GaN layer and a part of the substrate are provided with cutting channels; 2) deep etching: performing deep etching by using an ICP technology so as to at least expose the N-GaN layer; 3) performing angle etching: performing angle etching by using IBE (Inter-Back Etching) to enable the side wall of the N region and / or the side wall of the top edge of the cutting channel to be in an inverted trapezoidal shape; and 4) manufacturing a transparent conductive layer, and depositing a protective layer, a P electrode and an N electrode to obtain the LED chip. According to the process, the light emitting efficiency of the LED chip is improved, so that the external quantum efficiency is improved; the process is stable, and the yield can be improved; therefore, the cutting process step can be omitted, the yield can be improved, the subsequent processing flow is shortened, and the cost is controlled.

The application discloses a wireless fuel measurement and control system based on multi-physical field coupling communication, which comprises a wireless sensing system, a fuel data processing system and the like, wherein the wireless sensing system comprises a wireless sensor unit and a wireless sensing node unit; the wireless sensor unit is used for collecting data of the temperature, density, capacitance and dielectric constant of fuel; the wireless sensing node unit is used for processing the data collected by the wireless sensor unit and sending the data to the fuel data processing system; the fuel data processing system is used for receiving and processing the data sent by the wireless sensing node unit; TSCH and aviation narrowband UWB double protocol stacks are used for parallel communication between the fuel data processing system and the wireless sensing node unit; and the transmission power and channel frequency hopping are dynamically adjusted in real time according to the acquired aircraft attitude data. The application adopts IEEE 802.15.4e TSCH and aviation narrowband UWB double protocol stacks for parallel communication, combines with dynamic power control driven by the flight attitude, and guarantees the reliability of wireless communication; the system can be well compatible with the existing wireless architecture, supports hot plug upgrade of the air route, meets the DO-178C DAL-B airworthiness requirement, and is suitable for the measurement and control scene of fuel of various aircrafts and unmanned aerial vehicles.

The application discloses a method for selectively synthesizing 2-amido quinoline-N-oxide compounds from quinoline-N-oxide compounds, which uses copper hexafluorophosphate tetraacetonitrile and silver acetate as catalysts and isoxazolidinone as nitrogen source, does not need to add expensive ligands, and can obtain the product under mild conditions. The application has the advantages of low cost, mild reaction condition, high selectivity and the like, and avoids the use of noble metals such as rhodium, iridium and palladium. The method is suitable for different substituted quinoline-N-oxide compounds and other polysubstituted isoxazolidinone substrates.

This invention relates to the fields of functional materials and intelligent sensing technology, and discloses a method for intuitively visualizing the stretching amount of a flexible adhesive. The method includes: providing a flexible adhesive with an elastic substrate capable of elastic deformation along the stretching direction; setting multiple patterned marking regions corresponding to different preset stretching thresholds on the surface of the elastic substrate; forming microgroove structures with differentiated structural parameters at corresponding positions on the elastic substrate to generate a differentiated stress concentration effect; forming color-developing layers containing mechanochromic materials with different bulk crosslinking densities in each patterned marking region, with each color-developing layer collectively constituting a patterned color-developing functional layer; through the synergistic effect of the differentiated stress concentration effect of the microgroove structure and the difference in bulk crosslinking density of the color-developing layers, each patterned marking region changes from a hidden state to a visible state when the corresponding stretching threshold is reached, thereby characterizing the stretching amount of the flexible adhesive through pattern visualization. This invention provides clear thresholds and high readability, and is suitable for scenarios such as motion protection, flexible electronics, intelligent packaging, and structural condition early warning.

This invention discloses a simultaneous arsenic removal aid for gold stockpiles, comprising a core arsenic removal aid component and functional auxiliary components. The core arsenic removal aid component is sodium cyanate. The functional auxiliary components are selected from at least one of sodium cyanate, sodium hydroxide, sodium chloride, barium chloride, ferric chloride, sulfamic acid, disodium hydrogen phosphate, trisodium citrate, ferrous sulfate, and sulfuric acid. Sodium cyanate and the functional auxiliary components work synergistically to simultaneously remove arsenic and aid leaching of arsenic-containing materials in gold stockpiles during the cyanide leaching process. The advantages are high efficiency in arsenic removal, low toxicity and safety, compatibility with cyanide leaching processes, and controllable cost.

The application relates to the technical field of communication, in particular to a communication system and method, a vehicle and a medium, which comprise a control terminal with a control function and a processing terminal with a processing function, wherein the control terminal comprises one or more controllers, and the processing terminal comprises one or more processors; and a gateway deployed in a communication process of any processor in the processing terminal, wherein the gateway comprises an internal space and an external space, the gateway accesses a global data space through the external space, accesses one or more controllers and other processors through the external space, and selects, based on an authentication identifier set by the processor, the processor to communicate with other processors, the controllers and the processors to directly communicate, or forwards communication data between the controllers and the processors through the gateway. Thus, the problems of low applicability and the like caused by the fact that, in the prior art, a controller cannot accommodate the number of entities matched with the processors and the communication time delay under the condition that the controller resource is limited are solved.

This application discloses a toughened and abrasion-resistant polyester fiber and its applications. On one hand, this application provides a toughened and abrasion-resistant polyester fiber, wherein the raw material components of the toughened and abrasion-resistant polyester fiber are proportioned as follows: 100 parts PET resin, 6-12 parts modified carbon nanofibers, 2-6 parts nano-titanium dioxide, 12-18 parts maleic anhydride-grafted polyolefin elastomer, 16-24 parts modified magnesium hydroxide, 6-12 parts coated ammonium polyphosphate, 4-8 parts hydroxylated carbon nanotubes, and 0.3-0.5 parts composite antioxidant. On the other hand, this application provides a method for preparing the above-mentioned toughened and abrasion-resistant polyester fiber and its applications. This fiber exhibits excellent toughness and abrasion resistance, as well as superior strength and mechanical properties. It also possesses excellent flame retardancy and can be widely used in the field of automotive interior textile fabrics.

The application discloses a general method for cross-coupling of nickel-catalyzed aryl halide and amine, and belongs to the field of green chemical industry. In a nitrogen-containing solvent, only a cheap and commercially available nickel salt and a base are added, and no additional ligand is designed, so that aryl halide and amine can be efficiently coupled to prepare aryl amine compounds. In the method, the nitrogen-containing solvent simultaneously serves as a metal ligand, the substrate has wide universality, has good compatibility with various functional groups, and the yield of the product separation can reach 99% at most. The process has good scalability, and has been stably produced on a hundred gram scale; the solvent and the ligand can be efficiently recycled and reused for multiple times through simple physical or chemical means. The route has the advantages of easy availability of raw materials, simple operation, high atomic economy, and compliance with the principles of green chemistry and sustainable synthesis.

This invention discloses a radio frequency integrated circuit structure, a heterojunction bipolar transistor, and a method for fabricating the same, comprising a collector epitaxial layer, a base step, a surface passivation layer, and a base metal. The collector epitaxial layer has an active region and an isolation region. The base step is disposed on the collector epitaxial layer and located in the active region. The surface passivation layer covers the base step and the collector epitaxial layer, and has first and second openings. The first opening exposes the base step, and the second opening exposes the collector epitaxial layer located in the isolation region. The base metal is disposed on the surface passivation layer and located on the surface and sidewalls of the base step, extending into the isolation region. The first end of the base metal forms an ohmic contact with the base step, and the second end of the base metal is in contact with the collector epitaxial layer. This invention can effectively improve the adhesion reliability of the base metal without significantly changing the existing device structure and standard process flow, thus balancing high performance, high reliability, and process compatibility.

The invention belongs to the technical field of sun-screening agent analysis, and discloses a method for rapidly identifying sun-screening agent components based on a machine learning algorithm in combination with ultraviolet spectrum characteristics and application of the method. According to the method, the ultraviolet transmittance of the wavelength of 290-400 nm is measured through the prepared sunscreen composition, after spectrum preprocessing and dimension reduction processing are conducted, a data set is divided into a training set and a test set according to the ratio of 4: 1 through a KS method, component recognition is conducted through random forest, GBDT, multi-output linear regression, MLP, PLA and CNN learning algorithms, and an optimal preprocessing data set is screened out through the R2 recognition accuracy of the test set. And establishing a sun-screening agent component content prediction model based on the selected characteristic wavelength, and adjusting parameters, thereby realizing rapid identification of sun-screening agent components based on a machine learning algorithm in combination with ultraviolet spectrum characteristics. According to the method, the recognition efficiency and accuracy are remarkably improved, the recognition accuracy reaches 91.67% or above, R2 is larger than or equal to 0.94, and the method is applied to the field of sun-screening agent spectrum analysis.

The application discloses a high signal-to-noise ratio signal acquisition method and device for electrocardio-cardiac sound integration, and belongs to the technical field of biomedical signal acquisition. The circuit adopts two instrument amplifiers to collect electrocardio signals and cardiac sound signals respectively, and fuses a programmable gain amplifier-low pass filter fusion circuit and an analog-to-digital converter through a switch array time-sharing multiplexing. The instrument amplifier integrates chopping modulation and an auxiliary loop to suppress noise and improve input impedance; the fusion circuit adopts a switched capacitor topology to realize programmable adjustment of gain and bandwidth. A clock manager uniformly controls channel switching and circuit parameter reconfiguration. The application realizes high signal-to-noise ratio synchronous acquisition of double-mode signals, and has low power consumption, small area and good wearable integration characteristics.