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49results about How to "Site increase" patented technology

Liquid drop detection system and method for dielectric electrowetting digital microfluidic chip

The invention provides a liquid drop detection system and method for a dielectric electrowetting digital microfluidic chip. A personal computer issues a control command to a single-chip microcomputer,the single-chip microcomputer controls a driving circuit to provide driving voltage, the driving voltage drives liquid drops on an electrode of the dielectric electrowetting digital microfluidic chip, a detection resistor extracts a current signal passing through the microfluidic chip and sends the current signal into a voltage follower for flowing, the follow-up signals are divided into two paths, are respectively fed into a multiplier and are subjected to signal squaring, a low-pass filter carries out low-pass filtering on the signals output by the multiplier, a DC signal is obtained at anoutput end of the low-pass filter, the single-chip microcomputer acquires the DC signal output by the low-pass filter and transmits the DC signal to the personal computer, the personal computer processes the DC signal and information related to a liquid drop state is displayed. The liquid drop detection system and method can drive and detect one or more liquid drops with any sizes at any positionsand can calibrate the tested parameters when reducing driving voltage below the normal driving threshold so that the parameters are converted into parameters which can be used below the normal driving threshold.
Owner:FUDAN UNIV

Cu0.2Ni0.8O/SBA-15, production method and method for using Cu0.2Ni0.8O/SBA-15 in combination with persulfate for degrading sulfonamide solution

The invention provides a production method of Cu0.2Ni0.8O/SBA-15 and a method for using Cu0.2Ni0.8O/SBA-15 in combination with persulfate for degrading a sulfonamide solution. In the method for usingthe Cu0.2Ni0.8O/SBA-15 in combination with the persulfate for degrading the sulfonamide solution, by using a Cu0.2Ni0.8O/SBA-15 catalyst in combination with the persulfate, the utilization rate of thecatalyst can be effectively improved, and the degradation efficiency is greatly improved. The Cu0.2Ni0.8O/SBA-15 catalyst has high activity and stability, can be suitable for a wide pH range, variouskinds of pollutant concentrations and various kinds of environmental sewage treatment, and can be repeatedly used for a certain number of times, so that a high degradation rate is maintained. The Cu0.2Ni0.8O/SBA-15 catalyst can also be used in combination with ultrasonic and electrochemical methods for degradation, the catalytic degradation efficiency is greatly improved, which shows more that the catalyst is wide in application range and high in degradation rate, compared with other catalysts, the catalyst can provide more use methods, and the use fields of the catalyst are greatly broadened.
Owner:CHONGQING UNIV OF ARTS & SCI

Nitrogen-doped porous carbon-coated hydrogen storage alloy powder and preparation method thereof

The invention relates to the technical field of hydrogen storage alloys, in particular to nitrogen-doped porous carbon-coated hydrogen storage alloy powder. The nitrogen-doped porous carbon-coated hydrogen storage alloy power comprises hydrogen storage alloy powder, wherein a nitrogen-doped porous carbon layer is coated outside the hydrogen storage alloy powder, the mass fraction of the carbon content in the nitrogen-doped porous carbon layer is 5%-10%, and the mass fraction of the nitrogen content is 1%-3%. The preparation method of the nitrogen-doped porous carbon-coated hydrogen storage alloy powder comprises the following steps of pouring the hydrogen storage alloy powder into an alcohol solution containing transition metal salts; then adding the mixed solution into an alcohol solutioncontaining imidazole ligand, and performing standing to obtain a precursor; and finally carrying out high-temperature heat treatment on the precursor at 700-1000 DEG C for 1-3 hours after drying theprecursor so as to obtain the nitrogen-doped porous carbon-coated hydrogen storage alloy powder. The nitrogen-doped porous carbon-coated hydrogen storage alloy powder obtained through the preparationmethod is good in rate performance, high in power performance, excellent in low-temperature performance and good in cycle performance.
Owner:SICHUAN UNIV

Automobile side skirt capable of being automatically opened and closed and corresponding high-end welcome automobile

The invention discloses an automobile side skirt capable of being automatically opened and closed, which belongs to the technical field of automobiles and comprises a side skirt body and a transmission device, wherein the side skirt body comprises a fixing plate connected with the lower edge beam, a fender and a dust shielding box, wherein the fender and the dust shielding box are rotationally connected to the fixing plate through rotating shafts; and a linkage device is rotationally connected to the fixing plate and comprises a first connecting plate and a second connecting plate, one side of the first connecting plate is movably connected with the dust shielding box, and one side of the second connecting plate is rotationally connected with the inner wall of the dust shielding box. The invention further discloses a high-end welcome automobile. The high-end welcome automobile comprises an automobile body, an automobile door rotationally connected to the automobile body and an automobile side skirt fixedly arranged on a lower edge beam of the automobile body. The automobile side skirt can be stored in the dust shielding box, cannot be exposed for a long time, can be kept clean for a long time, prevents trouser legs from being stained when a driver gets on or gets off a vehicle, can improve the experience feeling of a high-end vehicle, enables the driver to experience VIP-level treatment, and is convenient to use, low in manufacturing cost and suitable for manufacturing side skirts of all vehicles.
Owner:赵洪强

Fuel cell catalyst with nanographite carbon rivet structure and preparation method thereof

InactiveCN105186009BUnique nano-graphite carbon rivet structureImprove stabilityCell electrodesFuel cellsFuel cellsMetal catalyst
The invention relates to a fuel-cell catalyst with a nano-graphite carbon rivet structure and a preparation method of the fuel-cell catalyst. Nano-graphite carbon with a graphite or graphite-like structure is introduced into a carbon carrier-loaded metal active component catalyst to form the fuel-cell catalyst with the nano-graphite carbon rivet structure; and the nano-graphite carbon rivet structure is the structure which is formed by covering the surfaces of metal particles with the nano-graphite carbon with the graphite or graphite-like structure and combining with a metal particle-loaded carbon carrier. Migrating agglomeration of catalyst particles on the carrier surface can be effectively suppressed; the service life of the catalyst is prolonged; and meanwhile, small particles which are formed by dissolving and redepositing the catalyst particles directly enter the solution in general in an electrochemical environment. The catalyst has the graphite carbon rivet structure, so that redeposited small particles can be deposited on a graphite carbon layer for further catalytic reaction; the redeposited particles are small in particle size and large in specific surface area; and the fuel-cell catalyst has more excellent catalytic activity than an ordinary carbon-loaded metal catalyst.
Owner:WUHAN UNIV OF TECH
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