5results about How to "Stable decomposition" patented technology

The invention relates to the technical field of electrocatalysis, in particular to an oxygen / sulfur heterostructure oxygen evolution electrocatalyst and a preparation method and application thereof. Based on an in-situ oxidation strategy, a CuFeO layer is generated on the surface of CuFeS, and the CuFeS-coated CuFeO high-performance oxygen evolution electrocatalyst with a heterostructure is obtained. By constructing a sulfide-oxide heterojunction, a built-in electric field can be formed at an interface to promote charge separation and transfer, so that the electrocatalytic activity is remarkably improved. And on the other hand, the CuFeO layer on the outer layer serves as an armor, and the problem of oxidation of the surface of CuFeS is solved. The electro-catalytic performance and the long-term stability are obviously improved.

The invention provides a synthetic microbial community and application thereof in degradation of trehalose and biofuel cells, and belongs to the technical field of synthetic microbiology and biological energy. A synthetic microbial community is constructed by means of synthetic biology, the synthetic microbial community comprises genetic engineering escherichia coli and shewanella, and the synthetic microbial community can realize a complete metabolic pathway from trehalose to acetic acid and an efficient electron transport chain; the method can be used for treating trehalose-rich wastewater or wastes and the like; the synthetic microbial community can be used for a microbial fuel cell, can stably generate current density and power density which are higher than those of a single strain or a natural mixed flora in the microbial fuel cell, and has good practicability.

The present application relates to air purification technical field, especially to a kind of purification equipment for removing coating formaldehyde, including shell, mounting plate fixedly connected in the cavity of shell.The present application is provided with self-cleaning mechanism, driving motor drives scraper to rotate around filter assembly, and cooperate with spiral conveying roller, dust scraped is automatically transported into collection box, realize the automatic cleaning of filter screen surface, effectively avoid filter screen blockage, ensure the persistence of filtering efficiency, by setting air flow guiding mechanism, servo motor drives rotating ring, on the one hand, drive fan blade to rotate, form auxiliary air flow, enhance air flow, on the other hand, through swing component drive air jet cylinder up and down swing, make air flow evenly into air duct, prolong the residence time and contact area of air flow in photocatalyst area, by setting photocatalyst decomposition mechanism, UV lamp irradiates photocatalyst coating in air duct, improve the purification efficiency and thoroughness of formaldehyde.

The utility model discloses garbage leachate treatment equipment, it includes base, the top fixedly connected with marsh gas pool of base, the inside fixedly connected with a plurality of racks of marsh gas pool, the inside engagement connection has first gear of rack, the inside fixedly connected with first drive link of first gear, the output fixedly connected with first motor of first drive link, the outside rotary connection has connecting rod of first drive link. Through above -mentioned structure, through the drive of first motor cooperation first drive link drives the rotation of external first gear, and first gear moves under the action of external rack, thereby first drive link drives the movement of external connecting rod, and connecting rod drives the movement of external top cap, and the top cap is sealed to marsh gas pool, and this can isolate the outside air, especially oxygen enters the pool body, avoids the metabolic activity of oxygen to inhibit anaerobic bacteria group, ensures that the organic matter decomposition process stably carries out, thereby improves marsh gas production.

This application relates to a method, system, device, and medium for decomposing ultra-large-scale graph matrices. The method adaptively determines the upper limit of the spectral interval by extracting the degree distribution and community structure of the graph, and constructs a Chebyshev filter accordingly to filter the initial vector to amplify the target feature gap. Using the filtered vector as the starting block, block Lanczos iteration is performed to obtain Ritz values ​​and approximate eigenvectors. Convergence is determined based on the Ritz value gap and residuals. When stagnation occurs, the spectral interval is dynamically corrected based on the Ritz value distribution, and the filter is reconstructed. The approximate eigenvectors are then filtered again to restart the process, forming an estimation-filtering-convergence closed loop. Thus, the online spectral interval estimation, Chebyshev acceleration, and deep block Lanczos work together to suppress spectral radius overflow and eigenvector pseudo-alignment caused by extreme eigenvalues, overcoming convergence stagnation and achieving stable and efficient large-scale graph decomposition.