7results about How to "Originality" patented technology

The invention belongs to the technical field of biological prevention and control of postharvest diseases, and particularly relates to biocontrol serratia rubra and application thereof to postharvest disease control, storage and fresh keeping of pear fruits. The method comprises the following steps: activating and culturing serratia rubra, centrifuging after culturing to obtain thalli, and re-suspending by using sterile normal saline to obtain a bacterial suspension; the method comprises the following steps: punching holes in the surfaces of pears, injecting the holes, and then injecting penicillium expansum spore suspension with the same volume, thereby realizing effective control on penicilliosis caused by penicillium expansum; or uniformly spraying the serratia rubra suspension on the surfaces of the pears, and naturally airing, so as to realize the purposes of disease control, storage and fresh-keeping after the pears are picked. According to the method, the occurrence of penicilliosis after the pears are picked can be remarkably reduced, the natural rotting rate after the pears are picked is reduced, the method is safe and environmentally friendly, no remarkable adverse effect is generated on main quality indexes of the picked pears, the storage quality of the pears can be kept, a remarkable technical effect is achieved, and the application prospect is wide.

The invention belongs to the field of biological prevention and control of postharvest diseases of fruits and vegetables, and relates to compound bacteria and application thereof in prevention and control of postharvest diseases of tomatoes and storage and preservation. The compound bacterium provided by the invention is prepared by mixing the pantoea agglomerans B10 (CCTCC M20241322) and the Caribik Yarrowia mayer yeast Y9 (CCTCC M 20241324), and the compound bacterium is prepared by mixing the Pantoea agglomerans B10 and the Caribik Yarrowia mayer yeast Y9. The compound bacteria are used for preventing and treating postharvest diseases of tomatoes and for storage and preservation, the natural condition of the tomatoes is kept, the tomatoes are soaked in the compound bacteria, the soaked tomatoes are taken out and naturally aired, and the tomatoes are stored in a certain environment, so that the prevention and treatment of postharvest diseases of the tomatoes and the application of storage and preservation can be realized. According to the present invention, the occurrence of gray speck disease, black spot and leaf spot disease after tomato harvesting can be significantly inhibited, the natural rotting rate after tomato harvesting can be reduced, the significant adverse effect on the main quality index of the harvested tomato can be avoided, and the deterioration of the storage quality can be relieved; the method is convenient to operate, safe and environment-friendly, and has wide market application prospects.

The invention belongs to the technical field of biological control, and specifically relates to a method for controlling postharvest diseases of eggplant using Bacillus Velez. The method comprises the following steps: activating and culturing Bacillus Velez to obtain a culture solution, centrifuging to obtain bacterial cells, and diluting the culture solution with sterile water to obtain 1×10 8 cells / mL of bacterial suspension; after drilling holes on the eggplant surface, inject the bacterial suspension, and after standing, inject an equal volume of carrot soft rot pectin Bacillus suspension to achieve the control of post-harvest soft rot of eggplant; or spray the Velez Bacillus suspension evenly on the surface of untreated eggplant and dry it naturally to achieve storage and preservation of eggplant. The present invention can effectively control post-harvest soft rot and natural decay of eggplant, and has no significant adverse effect on the main quality indicators of eggplant after harvest; it is easy to operate, safe and environmentally friendly, and has significant economic and social benefits.

The invention discloses a connecting shaft bracket of a cogging mill and a using method of the connecting shaft bracket. The connecting shaft bracket comprises a bracket body, a lower hydraulic cylinder, a wear-resisting plate, a lower bearing seat, a roller assembly, an upper hydraulic cylinder, an upper bearing seat and a transmission base. The wear-resisting plate is fixed to the bracket through screws, and the bracket serves as a supporting structure and is used for supporting the lower hydraulic cylinder, the upper hydraulic cylinder and the transmission base. The lower hydraulic cylinder and the upper hydraulic cylinder are connected with the bracket through pin shafts; the upper bearing seat and the lower bearing seat are connected through an upper hydraulic cylinder and a lower hydraulic cylinder respectively, and the upper bearing seat and the lower bearing seat are each provided with four roller assemblies. The two universal shaft sleeves on the flat head side of the rolling mill are supported by the rollers during roller replacement, and the connecting shaft bracket which moves through the hydraulic cylinder has originality, so that the rolling mill can be quickly replaced, and the rolling mill can move along with the rollers during roller gap adjustment and rolling. The device is novel in structural form, simple in structure, convenient to adjust, compact in structure, small in occupied area, small in equipment abrasion and low in later maintenance cost.

The invention belongs to the technical field of PET (polyethylene terephthalate) depolymerization catalysts, and relates to a method for generating BHET (butylated hydroxytoluene) by depolymerization based on a DBU-SiO2 catalyst, which comprises the following steps: adding waste PET and ethylene glycol into a depolymerization kettle for alcoholysis depolymerization reaction under the catalysis of an organic-inorganic hybrid nitrogen heterocyclic organic alkali loaded porous silica gel catalyst DBU-SiO2 to obtain a BHET monomer; the preparation process of the DBU-SiO2 comprises the following steps: adding silica gel into ethanol, stirring, adding 1, 8-diazacyclo [5.4. 0] undec-7-ene, carrying out heating reflux, and sequentially filtering, washing and drying to obtain the DBU-SiO2; the conversion rate of the PET polyester is 87.49 to 95.11 percent, and the yield of the BHET monomer is 76.84 to 80.03 percent. According to the method disclosed by the invention, the waste PET is depolymerized by adopting the DBU-SiO2 catalyst, so that the PET conversion rate and the BHET yield are remarkably improved.

The application provides a device and a test method for monitoring diffusion of hydrogen atoms across a grain boundary by using SKPFM, and relates to the technical field of hydrogen energy utilization. The device for monitoring diffusion of hydrogen atoms across a grain boundary by using SKPFM comprises a target grain boundary to be researched, a cantilever, an electrolytic cell, a platinum wire and a direct current power supply. The method is as follows: for a columnar crystal material after directional solidification, a certain grain boundary is determined as the research grain boundary, then a sample of the cantilever connected with the electrolytic cell is prepared, hydrogen atoms diffuse to the research grain boundary and gradually cross the grain boundary during the electrolysis process, and continuous scanning is performed on the grain boundary position by using SKPFM, so that the behavior of hydrogen crossing the grain boundary can be observed in real time. Compared with other traditional methods, the method of the application realizes the diffusion behavior of hydrogen atoms across the target grain boundary, high-throughput research and real-time monitoring research through the design of the device structure and the test method, improves the hydrogen embrittlement resistance of the material, and the conclusion is real, reliable and guaranteed, and is beneficial to industrial popularization and use.

This invention discloses a low-carbon equivalent extra-thick high-toughness normalized steel plate for offshore wind power and its manufacturing method. The steel plate is 100-150mm thick, and its chemical composition by weight percentage is C: 0.12-0.18%, Si: 0.20-0.40%, Mn: 1.20-1.60%, P≤0.020%, S≤0.005%, combined with trace amounts of Ni, Mo, and Cr tempering and Nb+V+Ti ternary composite microalloying, with strict control of B≤0.0005% and carbon equivalent CEV≤0.43%. The steel plate has a yield strength ≥355MPa, tensile strength 470-560MPa, and a single Charpy impact energy of -50℃ in both transverse and longitudinal directions ≥50J. The manufacturing method includes smelting and casting, heating of continuously cast billets, rolling, and normalizing heat treatment. The rolling compression ratio is ≥3.0, the reduction rate of the last three passes of rough rolling is >9%, the finishing rolling temperature is 780-820℃, the normalizing temperature is 870-900℃, and the holding time coefficient is 1.5-2.5 min / mm. This invention solves the problems of insufficient strength and toughness and uneven thickness properties of extra-thick plates with low carbon equivalent. It has good weldability, low production cost, and is suitable for offshore wind power monopile foundation structural components, and can be mass-produced.