51results about How to "Method saves time" patented technology

The invention belongs to the technical field of photocatalysts for organic sewage degradation, and particularly relates to a method for preparing carbon nitride / titanium dioxide heterojunction photocatalysts by one-step electrospinning. The heterojunction photocatalyst is prepared by a one-step electrospinning method. Specifically, melamine or guanidine hydrochloride or urea is added to a mixed solution containing glacial acetic acid, tetrabutyl titanate, polyvinylpyrrolidone and an organic solvent, and electrospinning is performed. The carbon nitride / titanium dioxide heterojunction photocatalyst is prepared by the process and high temperature calcination treatment. The prepared photocatalyst has a good heterostructure and excellent photocatalytic degradation performance of organic sewage, which simplifies the preparation process of carbon nitride / titanium dioxide heterojunction photocatalyst, and the process is simple and time-saving. It has better application prospects.

Disclosed are a turnover mechanism and a cabinet type turnover bed. The turnover mechanism comprises a torque conversion mechanism arranged on a base plate (1), a power assisting mechanism (8) for supplying power to the torque conversion mechanism, a curve torque regulating device (2) and a torque transmission output device. The torque conversion mechanism comprises a first connecting rod (3), a second connecting rod (4) and a third connecting rod (5) which can be rotatably connected in sequence. The first connecting rod (3) is connected to the power assisting mechanism (8). The end of the second connecting rod (4) close to the first connecting rod (3) is always closely fitted to the curve torque regulating device (2) and can move along the curve torque regulating device (2). The other end of the third connecting rod (5) is fixed with the torque transmission output device which is used for connecting a heavy object. The torque output of the power assisting mechanism (8) can be automatically regulated on the basis of the change in a load torque during a turnover process of a heavy object load, so that the device can automatically maintain the balance with respect to the load torque.

The invention provides a salmonella CRISPR (clustered regularlay interspaced short palindromic repeats) sequencing typing method; according to the method, by DNA sequencing of a latest interval sequence between Salmonella CRISPR1 site and CRISPR2 site, CRISPR type of a strain to be detected can be determined, and the Serotype can be predicted. The method is simple, rapid, low-cost and high-resolution, is high in consistency in salmonella serotyping results, and low in requirements on laboratory equipment and software, a new CRISPR type comprises bacterial evolution and regional and other various information, and by combination of a fluorescence probe and other methods, real time and rapid detection can be realized, and the method has popularization and application value.

The invention provides a method for improving the color value of red yeast rice produced by fermentation of koji seeds, and belongs to the technical field of red yeast rice production. The method comprises mixing the red yeast rice and the activation solution, and cultivating under sterile constant temperature conditions; draining the water in the red yeast rice under sterile conditions, adding sterile calcium chloride solution treated in an ice bath, and cooling in an ice bath Treatment, drain the sterile calcium chloride solution under aseptic conditions after ice bathing, and immediately add it to the activation solution at a temperature of 22-48°C, heat-treat at a constant temperature of 22-48°C for 60-120s, and drain the water , and then added to sterilized steamed glutinous rice, fermented for 7-20 days; dried to obtain finished red yeast rice. The color value of the red yeast rice obtained by adopting the present invention is more than twice that of the original red yeast rice. The seed koji activated by this method can be used to prepare high-quality red yeast rice. Since the strain preparation process required for pure-bred fermentation is omitted, the It can greatly shorten the production time and has extremely high economic value.