12results about How to "Many channels" patented technology

The invention relates to the technical field of lithium iron phosphate production, and discloses a carbon-coated titanium-doped lithium iron phosphate positive electrode material and a preparation method thereof.The preparation method comprises the following steps that 1, a ferrous solution and a phosphorus source solution are mixed in proportion, dopamine hydrochloride is added, a pH regulator is dropwise added in the stirring state, the pH of the solution is adjusted to 4.0-5.5, a reaction is conducted, a titanium source solution is added, and a reaction solution is obtained; after uniformly stirring, continuously dropwise adding a pH regulator to regulate the pH value of the solution to 5.5-6.5; the iron phosphate octahydrate coated with the titanium-embedded polydopamine is obtained; 2) calcining the titanium-embedded polydopamine-coated ferrous phosphate octahydrate in an inert gas atmosphere to obtain carbon-coated titanium-doped anhydrous ferrous phosphate; 3) mixing the carbon-coated titanium-doped anhydrous ferrous phosphate with lithium phosphate and a carbon source, ball-milling, mixing, spray-drying and calcining to obtain a carbon-coated titanium-doped lithium iron phosphate positive electrode material; the synthesis process is simple, and energy consumption is reduced.

A preparation method of a carbon black-based composite conductive agent for an automobile lithium battery belongs to the technical field of new energy automobile lithium batteries, and comprises the following steps: depositing conductive carbon black on the surface and gaps of MOF-Ni3 (HITP) 2 by adopting a vapor deposition method to obtain MOF-Ni3 (HITP) 2 loaded carbon black, and then carrying out surface modification on the MOF-Ni3 (HITP) 2 loaded carbon black by adopting a spraying agent to obtain the carbon black-based composite conductive agent for the automobile lithium battery. The carbon black-based composite conductive agent is obtained. The spraying agent is prepared from water, polyvinyl alcohol, waterborne polyurethane, behenamidopropyl dimethylamine and fatty alcohol-polyoxyethylene ether. The carbon black-based composite conductive agent prepared by the invention can greatly improve the dispersibility of the conductive agent, improve the conductivity and the conductive stability in long-term use, has very good high-rate charge-discharge efficiency, and improves the rate capability of a lithium iron phosphate battery.

The invention relates to a casting technology of an iron-copper alloy support casting for a new energy automobile, and belongs to the technical field of iron-copper alloy casting. According to the iron-copper alloy casting process, the filler A and the filler B are introduced to synergistically improve the iron-copper alloy casting process, through interaction of all the components, the uniformity and compactness of the interior of the iron-copper alloy are improved, the segregation phenomenon caused by poor compatibility is improved, accordingly, temperature shock or cracks generated in the high-pressure environment are reduced, and the performance of the iron-copper alloy is synergistically improved.

The utility model discloses a kind of efficient energy-saving electric heating pipes, the device includes: pipe body, the pipe body one end is equipped with end cap, the end cap one end is equipped with two lead wires, the pipe body sequentially includes base layer, oxidation resistance layer, reflective heat insulation layer from inside to outside, the base layer inner wall is equipped with evenly distributed heat dissipation rib. The utility model has the advantages that: pipe body is sequentially set base layer, oxidation resistance layer and reflective heat insulation layer from inside to outside, reflective heat insulation layer is like a layer of "heat shield", can efficiently reflect the heat radiated outward in pipe body interior, heat is "intercepted" in pipe, reduce the dissipation of heat to surrounding environment, so that more heat can be concentrated for heating target object;Base layer inner wall is provided with the heat dissipation rib that is distributed in helical shape, this unique helical structure increases the surface area of base layer inner wall, provides more passageway and contact area for heat transfer, effectively reduces energy consumption, meets the environmental protection requirement of energy saving and emission reduction currently.

In a microwave photon phased array, a beam forming technology in a receiving array is a key technology. The invention provides an incoherent microwave photon beam forming system based on polarization-wavelength multiplexing, incoherent light is realized by using different wavelengths, and meanwhile, the incoherent light is realized by using two polarization states, so that the total number of incoherent light paths is increased, and the number of incoherent combined microwave photon arrays is further increased. Compared with a method only using wavelength division multiplexing, the method can enlarge the number of microwave photon arrays formed by incoherent wave beams by one time, effectively enlarges the scale of the microwave photon phased array, and promotes the development of the microwave photon arrays.

The utility model provides a novel liquid cooling data acquisition system, including main module and a plurality of cascade module. The main module includes signal input module, signal processing module and output module. The utility model discloses a input interface and intelligent interface unit, can realize the access of a variety of types sensor data, make more channel number of unit volume, save the installation space of power distribution cabinet, single module can support 4-20mA's input and output simultaneously, can also provide 21VDC and 5VDC's external power supply through voltage output unit, not only make the power supply of sensor more flexible, can also power supply for cascade module, expand more acquisition channel, in addition, still can through the communication control 21V output voltage's delay power -on time, provide more possibility and flexibility for the power -on time sequence control of liquid cooling system.

A method for preparing a carbon black-based composite conductive agent for automotive lithium batteries, belonging to the technical field of new energy automotive lithium batteries, the preparation method of the present invention uses a vapor deposition method to deposit conductive carbon black on the surface and voids of MOF-Ni3(HITP)2 to obtain MOF-Ni3(HITP)2-loaded carbon black, and then uses a spray to perform surface modification on the MOF-Ni3(HITP)2-loaded carbon black to obtain a carbon black-based composite conductive agent. The spray contains water, polyvinyl alcohol, water-based polyurethane, behenamide propyl dimethylamine and fatty alcohol polyoxyethylene ether. The carbon black-based composite conductive agent prepared by the present invention can greatly improve the dispersibility of the conductive agent, improve the conductivity and long-term conductive stability, has good high-rate charge and discharge efficiency, and improves the rate performance of lithium iron phosphate batteries.

The invention provides a nitrogen-doped defect carbon sphere material loaded with monatomic Ni and application of the nitrogen-doped defect carbon sphere material in a lithium-sulfur battery. The problems of Li negative electrode corrosion, irreversible capacity fading and the like caused by deposition of insulating sulfur and polysulfide on the surface of a pole piece, volume expansion of a material in the charging and discharging process, a shuttle effect and slow reaction kinetics in the lithium-sulfur battery are solved. According to the catalyst, by designing monatomic Ni with maximum catalytic efficiency, highly dispersed monatomic Ni with a stable structure and strong interaction and multiple effects of constructing carbon sphere interface vacancy defects, physical limitation, chemical adsorption and catalytic action on polysulfide are synergistically realized, and the reaction kinetics and mass transfer rate of the catalyst are improved. When the catalyst is applied to the lithium-sulfur battery as a diaphragm modification material, the specific capacity, the rate capability and the cycle performance of the lithium-sulfur battery can be effectively improved.

The present invention provides a purpose of a thermostable Cas protein and a detection system and a kit for a target nucleic acid molecule. Specifically, the present invention provides a reaction system for detecting a target nucleic acid molecule, wherein the reaction system includes: a guide RNA, Cas12b (formerly known as C2c1), and a nucleic acid probe, which is detected after the reaction is completed. In addition, by combining with nucleic acid amplification techniques (such as LAMP, etc.), the sensitivity of the detection method can be greatly improved. The detection system provided by the present invention can be used for rapid detection of pathogenic microorganisms, gene mutations, single nucleotide polymorphisms, and specific target DNA, etc., and nucleic acid samples can be quantified.

The invention relates to a wound assessment method and device based on machine learning, equipment and a medium, and belongs to the field of intelligent medical treatment. The method comprises the steps that a user uploads an original wound image; wound labeling information is obtained based on the original wound image and is transmitted back to the user side, the wound labeling information comprises a wound contour, a wound size and a wound recovery stage, the wound contour comprises a conventional wound contour and a beautified wound contour, and the wound recovery stage comprises a blood coagulation stage, an inflammation stage, a repair stage and a mature stage; the user side comprises a conventional user side and a pure user side, the conventional wound contour is transmitted back to the conventional user side, and the beautified wound contour is transmitted back to the pure user side; according to the method and the system, the wound is quickly and conveniently identified, the wound information is returned according to different requirements of the user, and the reasonable wound nursing suggestion is provided.

The utility model provides a kind of ultra-wideband multichannel miniaturized frequency conversion system comprising at least two frequency conversion modules, frequency conversion module includes connected broadband frequency conversion unit, down-conversion and intermediate frequency unit, broadband local oscillator source connected with broadband frequency conversion unit and with the down-conversion and intermediate frequency unit connection point frequency local oscillator source.The utility model designs the frequency conversion module of four channels of ultra-wideband miniaturization, can be equipped with channel number flexibly according to system actual demand, four channels design same, can be well guaranteed the consistency between multichannel.The utility model dynamic range is big and ultra-wideband flatness is good, and the receiving dynamic range of ultra-wideband multichannel miniaturized frequency conversion system is big, radio frequency link can realize more than 50dB's digital control attenuation, and intermediate frequency link can realize 31.5dB's digital control attenuation.Ultra-wideband flatness is good, and the whole ultra-wideband gain fluctuation is less than 2dB.The utility model radio frequency link selected component frequency all covers 0.1GHz~18GHz, realizes the working frequency of ultra-wideband.

The utility model relates to the technical field of filter pressing, in particular to a filter press with a filter cake displacement dewatering device, which comprises a casing, a row of filter plates are mounted in the casing, a sludge cavity is enclosed between the adjacent filter plates, a drainage cavity is arranged in each filter plate and communicated with a water outlet nozzle mounted on the filter plate, and the filter cake displacement dewatering device is mounted on the casing. The filter cake displacement precipitation device comprises a high-pressure air source and a main air pipe, the main air pipe is communicated with the drainage cavities of the different filter plates through the high-pressure air pipe, one end of the main air pipe is an air inlet end, the other end of the main air pipe is a water outlet end, a first pneumatic valve is installed at the air inlet end, a second pneumatic valve is installed at the water outlet end, and a third pneumatic valve is installed on a water outlet nozzle. A high-pressure air source is generated by a compressor, the compressor is communicated with an inlet of a three-way connector through an air supply pipe, an outlet of the three-way connector is communicated with a main air pipe and a branch pipe, the branch pipe is communicated with an air storage tank, the air storage tank is communicated with an air blowing pipe, and the air blowing pipe is communicated with a third pneumatic valve through a pu pipe.