10results about How to "Increase choice" patented technology

This invention relates to a tandem solar cell, its fabrication method, and its application. The tandem solar cell comprises a top layer of perovskite cells and a bottom layer of back contact cells stacked sequentially from top to bottom. The perovskite cells include a front glass layer, a first passivation layer, a perovskite composite layer, and a second passivation layer stacked sequentially from top to bottom. The perovskite composite layer includes at least two polar perovskite regions and perovskite electrodes disposed on both sides of each polar perovskite region in a first direction. The back contact cells include a back glass layer, a back electrode layer, and a crystalline silicon layer stacked sequentially from bottom to top. In the solar cell provided by this invention, the perovskite composite layer of the perovskite cell is designed with a specific structure using polar perovskite and perovskite electrodes to form a built-in electric field, driving the directional movement of electron-hole pairs to generate current. Combined with the introduction of the back contact cells, more solar radiation is received, thus improving the performance of the tandem solar cell.

This invention relates to the field of sensing materials technology, specifically disclosing a cellulose-based conductive hydrogel material for ascorbic acid detection, its preparation method, and its applications. This hydrogel uses TEMPO oxidized cellulose nanofibers (TOCNF) as a biocompatible matrix. By introducing Cu-BTC / CNT composite nanoparticles, a three-dimensional conductive network with both high electrochemical activity and structural stability is constructed. While retaining the biocompatibility and flexibility of cellulose, it exhibits particularly high sensitivity and selectivity in detecting small biomolecules such as ascorbic acid, with short response time and good stability. This method achieves synergistic optimization of the composite material's structural uniformity and functionality without relying on complex molding processes. Experimental results show that the conductive hydrogel prepared by this invention possesses good mechanical properties and biocompatibility, exhibiting high sensitivity and stability in biosensing fields such as ascorbic acid detection, providing a novel high-performance material basis for flexible biosensors.

The utility model discloses a mould for a flow guide plate in a water tank of a breathing machine, which comprises an upper mould base and a lower mould base, a cavity is arranged between the upper mould base and the lower mould base, and the cavity is used for forming the flow guide plate in the water tank of the breathing machine. The upper mold cooling water channel and the lower mold cooling water channel are spirally distributed and correspond to each other; and the upper mold cooling water channel and the lower mold cooling water channel are respectively connected with an independent cooling liquid circulating system. The upper mold cooling water channel and the lower mold cooling water channel adopt the design of multilayer spiral distribution and independent circulation, and are matched with the spoiler and the novel cooling medium channel, so that compared with a traditional cooling water channel, the mold can be cooled more uniformly and more quickly, the cooling efficiency is greatly improved, the production period is shortened, and the production cost is reduced.

This invention discloses a fuel cell cycle system and its control method based on high-frequency pulsed coordinated ejection. The system includes a hydrogen inlet pipeline, an ejector, a fuel cell stack, a vapor-liquid separator, and a tailpipe valve. The hydrogen inlet pipeline includes a hydrogen inlet solenoid valve, a proportional valve, and a pulse solenoid valve. These valves are sequentially connected to the hydrogen inlet of the ejector. The hydrogen outlet of the ejector is connected to the hydrogen inlet of the fuel cell stack, and the stack's outlet is connected to the liquid-vapor mixture inlet of the vapor-liquid separator. The hydrogen return port of the ejector is connected to the separation outlet of the vapor-liquid separator. The liquid outlet of the vapor-liquid separator is connected to the tailpipe valve. The hydrogen inlet pipeline is connected to a hydrogen source. This invention improves battery performance consistency, suppresses performance degradation, and enhances system reliability and stability by creating a sufficient pressure differential to drive hydrogen circulation.

The utility model discloses a 577nm trapped wave negative optical filter, which comprises a transparent substrate and a filter film, the filter film is plated on the upper surface of the transparent substrate, the filter film comprises a plurality of high refractive index film layers with different thicknesses and a plurality of low refractive index film layers with different thicknesses, and the total number of the layers is 242. The average transmittance of the 577 nm notch negative optical filter to light with the wavelength ranging from 400 nm to 900 nm is 95%, the half width of a cut-off band is 23 nm, and the cut-off depth of the 577 nm notch negative optical filter to light with the wavelength of 577 nm is 4.739. And after light enters the 577nm notch negative optical filter from air, only the light with the wavelength range of 400-900nm is emitted, and the light with the wavelength of 577nm is filtered out.

This invention relates to the field of pharmaceutical preparation technology, specifically to a sulfachlorpyridazine sodium-methotrexate suspension, its preparation method, and its application. The sulfachlorpyridazine sodium-methotrexate suspension of this invention comprises the following components per 100 ml: 20-50 g of sulfachlorpyridazine sodium, 4-10 g of methotrexate, 0.1-0.25 g of suspending agent, 0.05-0.125 g of wetting agent, 0.2-0.5 g of antioxidant, 0.1-0.25 g of disodium edetate, and purified water to a final volume of 100 ml. The suspension prepared by this invention can delay the in vivo clearance of sulfachlorpyridazine sodium, prolong the synergistic effect time, and improve its bioavailability; in the treatment of coccidiosis infection in chickens and sheep, it can significantly improve weight gain, reduce intestinal lesion values, rapidly clear oocysts, and maintain a long-lasting protective effect after drug withdrawal.

This invention relates to the field of composite material preparation technology, specifically to a method for preparing continuous glass fiber reinforced polyurethane core profiles, comprising the following steps: preparing continuous glass fiber, isocyanate component, polyol component, chain extender, coupling agent, catalyst, antioxidant, and ethanol, wherein the isocyanate index of the isocyanate component and the polyol component is 0.8-1.1. This invention effectively solves many defects of existing technologies by constructing a multi-dimensional synergistic optimization system, possessing significant technical advantages and practical value. Regarding interfacial bonding, a composite modification method is adopted, which significantly improves the interfacial bonding strength between the fiber and the polyurethane matrix, fundamentally improving the conduction efficiency of the material's mechanical properties, resulting in a significant improvement in the material's core mechanical properties such as tensile, bending, and impact resistance.

The application provides a photothermal-water-voltaic synergistic effect wide-spectrum plasmonic core-shell material and a device preparation method. In the synthesis process, anisotropic plasmonic nanostructures respectively undergo aggregation in a plane and overlap in a vertical direction, which respectively causes red shift and blue shift of a surface plasmon resonance (SPR) resonance peak, and breaks through the diffraction limit to achieve wide-spectrum absorption. The thin film prepared by the application has good photothermal effect, and the existence of the oxide shell can effectively protect the plasmonic metal core from deformation caused by chemical reaction with the outside world when the temperature rises. In addition, the prepared thin film has good water-voltaic power generation capacity, and can improve the water-voltaic power generation output by using the photothermal effect under illumination.

The application discloses a preparation method and application of a zinc oxide-based hydrated cerium carbonate oxide composite material, in particular to a preparation method and application of a Ce2O(CO3)2H2O / ZnO composite material, wherein the preparation method comprises the following steps: preparing a salt solution, preparing an alkali solution, ultrasonic mixing of the salt solution and the alkali solution, pH adjustment, aging, washing and drying of the product; the method provided by the application is used for preparing a zinc-nickel battery negative active material and inhibiting the growth of dendrites; compared with physical mixing, the hydrothermal method can effectively control the reaction and the crystal growth by changing the temperature, the pressure and the reaction time, so that the Ce is better grown on the surface of the ZnO, and the Ce2O(CO3)2H2O / ZnO composite material with better crystallinity is generated; the Ce2O(CO3)2H2O / ZnO composite material prepared by the method has a larger specific surface area and higher catalytic activity compared with traditional ZnO.

The application discloses application of a compact CRISPR / SwCas9 system in corn gene editing. Zmzb7 and ZmF3H The editing efficiency of T0 plants targeting the genes is 60% and 75% respectively. The application provides a novel tool with independent intellectual property right, compact size and high efficiency for corn gene knockout and multi-target point editing.