5results about How to "Inhibit transformation" patented technology

The utility model relates to the technical field of concrete strength detection, and discloses a concrete strength detection device for building construction, which comprises a top plate, the bottom surface of the top plate is fixedly connected with a limiting piece, and the outer surface of the limiting piece is rotatably connected with a limiting shell. According to the concrete strength detection device for building construction, components such as a gear, a gear ring, a threaded rod and a telescopic rod are arranged, a first motor drives the gear to rotate, the gear ring is made to rotate through the gear, a limiting shell and a mounting frame are driven to rotate, the moving direction of a rebound apparatus can be changed, and the threaded rod is made to rotate through a second motor; a first sliding block is arranged, a second sliding block is arranged on the first sliding block, then the first sliding block drives a telescopic rod and a rebound apparatus to move, the rebound apparatus can be perpendicular to concrete for detection, meanwhile, the rebound apparatus can freely move in a plane, the multi-directional detection effect is achieved, and the data accuracy is improved; and an operator can conveniently push the concrete block into the detection area and pull the concrete block out of the detection area.

The application belongs to the technical field of friction material processing, and particularly relates to a mute wear-resistant resin-based automobile braking friction material and a preparation method thereof. The friction material comprises a resin binder, modified reinforcing fibers, flaky graphite, aluminum oxide, precipitated barium sulfate and hexamethylenetetramine. The modified reinforcing fibers are covalently grafted with hyperbranched polyamides containing dynamic imine bonds and cashew phenol long chains on the surface, and the hyperbranched polyamides are synthesized with 3,5-diaminobenzoic acid as a monomer. The dynamic imine bonds reversibly break and recombine under the braking friction vibration stress, convert mechanical energy into heat energy dissipation, the hyperbranched topological structure provides elastic energy storage damping, and the cashew phenol long chains are heat-induced crosslinked at high temperatures to realize self-reinforcement. The application simultaneously realizes excellent mute, wear resistance and heat recession resistance through a multi-level synergistic energy dissipation mechanism, and can guarantee long-term service stability, and is suitable for the manufacturing of high-performance automobile brake pads.

The invention discloses a traditional Chinese medicine formula for treating idiopathic pulmonary fibrosis and a preparation method of the traditional Chinese medicine formula, the traditional Chinese medicine formula consists of twelve raw material medicines in specific parts by weight: radix glehniae, radix ophiopogonis, astragalus membranaceus, codonopsis pilosula, selfheal, oyster, processed pinellia ternate, edible tulip, seaweed, concha meretricis seu cyclinae, rhizoma sparganii and curcuma zedoary. The composition can effectively inhibit fibroblast proliferation and activation and reduce extracellular matrix secretion, and can play an anti-fibrosis role by inhibiting TNF-alpha inflammatory factors and NF-kappa B signal pathways, clinical tests show that the composition can significantly improve clinical symptoms of patients and delay lung function decline, and is good in safety and suitable for clinical application. The invention also provides a preparation method of the composition, various dosage forms such as decoction, granules, freeze-dried powder and the like can be prepared, the preparation process is simple and convenient, the composition is suitable for industrial production, and a safe and effective new traditional Chinese medicine treatment choice is provided for idiopathic pulmonary fibrosis.

This invention relates to the field of lipid biocatalysis and functional lipid preparation technology, specifically to a COF immobilized lipase system for the directed synthesis of sn-1,3-diacylglycerol, its preparation method, and its applications. This invention provides a method and system for regulating the glycerol hydrolysis reaction pathway of lipases using a cooperative covalent organic framework. By introducing multiple functionally complementary and irreplaceable covalent organic framework modules in the same reaction process, it preferentially promotes the conversion of triglycerides to sn-1,3DAG; significantly inhibits the acyl migration of sn-1,3DAG to sn-1,2DAG; reduces secondary non-selective reactions of DAG; and improves the proportion and compositional stability of sn-1,3DAG at the reaction pathway level.

This invention provides a sweet-scented black tea, relating to the field of fermented black tea preparation. It is obtained through a preparation process of withering, rolling, fermentation, and continuous light fermentation drying. Rolling involves cyclically rolling withered leaves using a light-heavy-light pressure method to obtain rolled leaves. Fermentation involves breaking up the rolled leaves and placing them in a fermentation chamber or fermentation machine for fermentation at a temperature of 28-30℃ and a humidity of not less than 90%, for 3 hours with stirring every hour to obtain fermented leaves. After fermentation, continuous light fermentation drying is performed to obtain the sweet-scented black tea. This black tea utilizes a specific tea-making process, namely, continuous light fermentation drying after fermentation by introducing a dry mixed gas. This achieves light fermentation during the drying process, allowing fermentation to continue throughout the entire drying process, improving the persistence of the fermentation process, avoiding excessive oxidation and fermentation of the tea sample, and ensuring the long-term and stable nature of the fermentation.