7results about How to "Quality controllable" patented technology

The utility model relates to bridge engineering technical field, and disclose a kind of steel box girder and concrete pier column consolidation structure, including steel box girder, concrete pier column, shear nail and the adjusting member for adjusting the elevation of steel box girder installation, concrete pier column top is reserved with shear key, steel box girder bottom is equipped with for with concrete pier column top socket joint connection's notched, concrete pier column top outer circumferential wall is equipped with the slope of being inserted easily, concrete pier column top is inserted in the inside of notched, adjusting member includes jacking corbel and jack, jacking corbel is connected by bolt with the reserved planting bar on the outer wall below concrete pier column, jack is installed in jacking corbel top, jack top and steel box girder bottom are abutted. The present application is simple in structure, high in precision of factory prefabrication, force transmission is direct in socket design, stress concentration is small, and the elevation of section member is accurately adjusted, convenient for construction, applicable to complex environment and large-span bridge.

This invention relates to a method for horizontally assembling and vertically rotating a tower assembly. A hinge is installed on the tower foundation, and a slide rail is installed on the tower assembly platform. A sliding shoe is mounted on the slide rail. The tower is assembled horizontally on the assembly platform, and the lower end of the tower is hinged to the hinge. A chain rod is then installed between the sliding shoe and the tower frame. A tension jack is used to pull the sliding shoe along the slide rail, and the chain rod transmits force to rotate the tower vertically around the hinge into position. Finally, the hinge is locked, and a column is installed between the lower end of the tower and the tower foundation to complete the tower installation. This invention allows for the segmental assembly of the tower on the ground, eliminating the need for large hoisting equipment and significantly reducing high-altitude work and construction risks.

According to the specific implementation mode, a grouting sleeve is arranged at the upper end of a vertical column rib, the upper end of the grouting sleeve is open, the lower end of the vertical column rib of an upper layer prefabricated frame module unit is inserted into the grouting sleeve to achieve connection, and a top plate is of a structure with the fully-prefabricated center and the periphery laminated layer. Post-pouring holes are formed in the side faces of the beams, and shear-resistant steel bars are inserted to form connecting structures on the lower portions of the adjacent beams. Through optimization of a column vertical rib connection form, innovation of a top plate structure and improvement of a beam connection structure, the defects that in the prior art, pressure grouting operation is complex, connection construction conflicts with indoor decoration, and the connection strength between modules is poor are overcome, the connection strength of prefabricated frame module units is improved, the construction difficulty of a construction site is reduced, and the construction efficiency is improved. And the control difficulty of the connection construction quality is reduced.

The invention discloses a traditional Chinese medicine oral prescription for preventing and treating influenza A and improving digestive tract diseases, and belongs to the technical field of traditional Chinese medicines. The prescription is prepared from kudzuvine root, radix bupleuri, moutan bark, peach kernel, scutellaria baicalensis, raw rhubarb, pinellia ternate, fructus forsythiae, mirabilite, mangnolia officinalis, immature bitter orange, poria cocos, bighead atractylodes rhizome, rhizoma alismatis, white paeony root, Chinese date and ginger which are strictly matched according to a specific weight ratio and are prepared by a specific water decoction process. The traditional Chinese medicine oral prescription can effectively prevent and treat influenza A through the synergistic effect of the components, has a remarkable improvement effect on most of digestive tract diseases, is simple in preparation process, convenient to take and high in safety, avoids the problems of poor curative effect, obvious side effect or narrow application range and the like of related medicines in the prior art, and has a wide application prospect. And a new effective choice is provided for prevention and treatment of influenza A and improvement of digestive tract diseases.

This invention discloses a coupling method for aerodynamics and vehicle dynamics applicable to high-speed trains, relating to the interdisciplinary field of aerodynamics and vehicle dynamics. The method includes: establishing separate aerodynamic and vehicle dynamic models for the high-speed train; exchanging data between the two models using a dual-time-step time-progression method, improving computational time accuracy, step size, and stability. While comprehensively considering the interaction between the high-speed train and its surrounding flow field, the influence of track irregularities, and tunnel effects, a multi-region mesh generation method is adopted, improving the quality and efficiency of mesh generation. Furthermore, the overlapping mesh method avoids mesh reconstruction problems. Simultaneously, the use of six-degree-of-freedom motion velocity to reflect the attitude changes of the high-speed train simplifies the coupling steps. The entire process saves time on mesh generation, calculating the displacement of mesh nodes around the train, mesh reconstruction, and computational iterations, enabling the coupling method to be implemented quickly and on a large scale.

The invention discloses a preparation method of a direct injection type W-doped high-performance film, which belongs to the technical field of films and comprises the following steps: (1) selecting high-purity metal W and a high-purity C target as target materials; (2) selecting single crystal Si as a substrate material; (3) carrying out ultrasonic cleaning on the substrate material; (4) placing a substrate material on a sample holder, feeding the substrate material into a sputtering chamber, starting equipment, and when the vacuum degree reaches a certain value, starting a sputtering target material C target for pre-sputtering; (5) N2 is introduced, and a CN bottom layer film is prepared; after the preparation of the bottom-layer film is completed, adjusting process parameters for W doping, bombarding the obtained film by adopting argon ions, and repeating the step for multiple times according to needs; and (6) carrying out heat treatment. The preparation process is simple, the characteristics of the CN thin film are improved, and meanwhile, the required thin film can be flexibly prepared according to the requirements of electronic components through W doping.

This invention relates to the field of biomedical technology, and more particularly to a phosphatidyl polymer, its preparation method, an mRNA phosphatidyl polymer delivery system, and its applications. The phosphatidyl polymer has the structure shown in Formula I. The phosphatidyl polymer can self-assemble with mRNA and modified amphiphilic molecules to form an mRNA delivery system. This invention, by adjusting the mass ratio of the phosphatidyl polymer to mRNA during complex preparation, can alter the organ-targeting characteristics of the complex in vivo. With increasing proportion of phosphatidyl polymer in the mass ratio formulation, the target organ of the complex changes from the spleen to the liver and then to the lung. Compared to traditional mRNA delivery systems, this invention allows for control of the organ-targeting characteristics of the delivery system simply by changing the mass ratio formulation, achieves high in vitro and in vivo mRNA delivery efficiency, reduces the difficulty and cost of large-scale raw material production, and provides a new platform for efficient, precise, and universal mRNA delivery.