4results about How to "Achieve production increase" patented technology

The invention discloses a method for enhancing the synthetic ability of yeast total protein and dipeptide tripeptide. Relates to the technical field of synthetic biology and metabolic engineering. According to the invention, the saccharomyces cerevisiae engineering strain with high protein synthesis capability and high endogenous dipeptide and tripeptide accumulation level is successfully constructed. The metabonomics analysis reveals the unique peptide fragment accumulation spectrum, especially the generation of a large amount of lysine-rich tripeptide at the C terminal, and proposes a potential mechanism of metabolic pathway'bottleneck 'caused by peptidase activity down-regulation in combination with proteome data. The recombinant strain has important application potential in the fields of single-cell protein, functional peptide products and the like.

The present invention discloses a method for producing heavy naphtha by hydrocracking. The method comprises a hydropre-refining reaction zone and a hydrocracking reaction zone, and the process comprises: a diesel feedstock containing straight-run diesel, hydrogen and circulating oil are mixed and fed from the top of the hydropre-refining reaction zone, and an aromatic-rich diesel feedstock is fed from the middle and lower part of the hydropre-refining reaction zone, and after hydrorefining reaction, the nitrogen content in the effluent of the pre-refining reaction zone is controlled to be below 15 mg / kg, and the effluent of the hydropre-refining reaction zone is obtained. Enter the hydrocracking reaction zone for reaction, and the effluent of the hydrocracking reaction zone is fractionated by a fractionation system to obtain dry gas, liquefied gas, light naphtha, heavy naphtha and tail oil, wherein the tail oil is circulated back to the hydropre-refining reaction zone as circulating oil, and at least part of the liquefied gas and at least part of the light naphtha are circulated back to the hydrocracking reaction zone. The method of the present invention can improve the quality of the target product and can achieve the limit increase in production of heavy naphtha.

This utility model specifically relates to a hydroponic root-controlling tide pot for promoting early flower bud differentiation. The outer pot of this root-controlling tide pot has a placement cavity. A ring-shaped barrier is provided at the bottom of the placement cavity. The outer pot is constructed to support the inner pot using the ring-shaped barrier, and the ring-shaped barrier also separates a water storage cavity at the bottom of the placement cavity. The inner pot is installed inside the placement cavity. A planting cavity is provided in the inner pot. A limiting frame is provided at the bottom of the inner pot. The limiting frame is fitted outside the ring-shaped barrier, providing radial limitation for the inner pot and allowing it rotational freedom around its own axis. Openings are provided on the bottom and side walls of the inner pot. The inner pot is constructed to connect the planting cavity and the placement cavity through the openings, allowing the crop roots in the planting cavity to grow into the placement cavity through the openings, and the rotational movement of the inner pot relative to the outer pot cutting the crop roots. This root-controlling tide pot effectively controls plant root growth, ensures water supply, and improves cultivation quality.

The invention discloses a multi-queen bee breeding beehive and a use method, relates to the technical field of agriculture, and aims to solve the problems that in the prior art, new queen bees go out to marriage and fly and then return to the nests to breed, the nests can operate normally, the cycle time is long, and the risk that no queen bee can be used exists. The bottom of the beehive body is connected with the base, the front end of the beehive body is provided with an expansion hole, an expansion mechanism is arranged in the expansion hole, the box-in-box bodies are placed in the beehive body, a third channel is arranged between the box-in-box bodies and the beehive body, the bottoms of the box-in-box bodies do not make contact with the base, and first channels are formed in the box-in-box bodies. The box-in-box is a shell formed by splicing a left side plate, a right side plate, a bottom plate, a front side plate, a rear side plate and a top plate, and a first frame is arranged in the box-in-box. The queen bee breeding device is used for breeding new queen bees, so that old queen bees can be bred in the process of guiding a swarm to operate normally, the new queen bees can be rapidly blended into the swarm, and the empty delivery period can be shortened.