12results about How to "Prevent outbreak" patented technology

According to the method, bacillus licheniformis bacterial liquid and calcium ion liquid are sequentially, slowly and evenly sprayed on the surface of a soil body, soil particles on the surface of a slope are cemented, a layer of calcium carbonate protection film is formed on the surface of the soil body, the anti-scouring capacity of the soil body can be effectively improved, flowing of the soil particles is reduced, and plant growth is protected; the adopted bacillus licheniformis can also increase the number of effective microbial communities in soil, improve the root system environment, promote plant growth, inhibit reproduction of harmful microorganisms, improve the granular structure of the soil, improve the soil, regulate the pH value of the soil, improve the water storage, energy storage and heat preservation of the soil, improve the disease resistance of crops and promote the maturity of plants; after vegetation grows, the effect of water and soil conservation can be improved, generated calcium carbonate can also bond soil particles, water and soil loss is reduced, bacillus licheniformis plays a dual role, multiple utilization of resources is achieved, and wide application prospects are achieved.

The invention provides a blue-green algae inhibitor accurate spraying method and system based on an unmanned ship, and belongs to the technical field of blue-green algae treatment. The technical problem that the dosage of the blue-green algae inhibitor cannot be accurately controlled in the blue-green algae killing process is solved. According to the technical scheme, the spraying method comprises the following steps of collecting target water area environment data and blue-green algae concentration data, drawing a target water area route planning map, dividing the target water area route planning map into a plurality of sub-areas, judging target sub-areas needing to be sprayed with inhibitors, planning a spraying path of an unmanned ship, and determining a spraying scheme of each target sub-area. And setting a spraying path of the unmanned ship and a spraying scheme of each target sub-area, and accurately spraying the blue-green algae inhibitor to the target water area. The system comprises an unmanned ship, a planning and drawing module, a route planning module and a spraying control module. According to the method, the blue-green algae inhibitor is automatically and accurately sprayed to the target water area through the unmanned ship, the spraying path is planned, and automatic treatment of blue-green algae is achieved.

The utility model belongs to the technical field of flame-retardant cables, and particularly relates to a cable with a flame-retardant function, which comprises a base, a first protective cover is fixedly mounted at the top of the base, connecting boxes are fixedly mounted on the front side and the rear side of the first protective cover, a second protective cover is arranged above the first protective cover, and the second protective cover is fixedly mounted on the base. Connecting plates are fixedly mounted on the front side and the rear side of the second protective cover. Through the arranged protection assembly, a cable is placed above a first protection cover, a second protection cover can slide into the inner side of a connection box through a connection clamping block, so that the connection position of the cable is protected, a control handle is controlled to drive a lead screw to rotate, and the lead screw can drive a moving plate and a locking block to slide after rotating; and the locking block slides into the inner side of the connecting clamping block, so that the device is relatively convenient and rapid to disassemble and assemble without the help of a tool.

The invention discloses a pH response type nanorod intelligent antibacterial coating constructed on the surface of stainless steel for the first time. According to the coating, stimuli-responsive polymer polyacrylic acid (PAA) and phage-derived endolysin Lys81 are grafted to a ZnO nano-column, and self-regulation is carried out in response to environmental conditions. In the initial stage of bacterial adhesion, the surface of the nanorod shows remarkable mechanical bactericidal activity, and the bacterial adhesion is effectively inhibited by the super-hydrophilic PAA layer. In a later stage, when many live bacteria and dead bacteria adhere to the surface of the nanorod, the PAA chain disintegrates, exposing the endolysin bottom layer that lyses the damaged bacteria. In addition, along with the increase of the pH value of the environment, the attached dead bacteria can be released once the hydrophilicity of the PAA chain is recovered. The purpose of the present invention is to apply an antibacterial coating to a stainless steel surface used in food processing, thereby improving surface hygiene and preventing cross contamination of fresh agricultural products.

The invention discloses a method for preparing L-proline through pressurized temperature oscillation crystallization in a water-ethanol system. The method comprises the following steps: adding an ethanol solution with the water content of 5-10v% and an L-proline raw material into a jacketed crystallization kettle, starting pressurizing and online particle size detection equipment, heating and stirring until the L-proline raw material is completely dissolved, and enabling the solution to reach a saturated state; performing linear cooling to 60-65 DEG C, closing a pressurizing valve, opening a crystal slurry tank valve, pressing L-proline crystal slurry into a crystallization kettle, growing the crystal, starting a cooling program, and cooling according to a function T2 (t) = T2i-{(t-120) / t2} 2 * (T2i-T2f), tlt; after 240min, cooling is carried out according to a function T3 (t) = T3i-{(t-240) / t3} 2 * (T3i-T3f), and the temperature is reduced according to 240lt; tlt; the time is 450 to 480 minutes; and when the temperature is reduced to the end point, growing crystals, filtering, washing and drying to obtain a crystallized product. The L-proline product prepared by the method is large in particle size, narrow in particle size distribution and relatively high in bulk density.

The present invention relates to a battery module having partition walls and an insulation layer for preventing thermal runaway, and more specifically, the present invention relates to a battery module in which a cell module assembly including two or more cell stacks is received in an internal space in a protective casing, each cell stack including a plurality of battery cells stacked vertically together, and one or more partition walls are arranged in at least one of the following positions: between the cell stacks positioned adjacent to each other; and between the cell stack and the protective casing.

The present invention discloses an ecological planting method for reducing the disease infection rate of Pseudostellaria heterophylla and improving its yield and quality by covering with shading screens, belonging to the technical field of medicinal plant cultivation. A shading facility is built in the middle and late growth stages of Pseudostellaria heterophylla under high temperature, strong light and rainy conditions; the method for building the shading facility is as follows: in the middle growth stage of Pseudostellaria heterophylla, a support is built above the planting area, and a shading screen is covered on the support to adjust the light intensity in the field. The planting method of Pseudostellaria heterophylla is applicable to the planting area of Pseudostellaria heterophylla in the south with high temperature and high humidity. The middle stage is the middle of April, and it is covered until the harvest of Pseudostellaria heterophylla in early July. By building a shading facility, the microclimate environment for the growth of Pseudostellaria heterophylla is optimized, thereby reducing the incidence of plant diseases, promoting photosynthetic growth, improving yield and quality, etc. This method has the advantages of simple operation, low cost, ecological environmental protection, etc., can significantly improve the yield and quality of Pseudostellaria heterophylla, and achieve the synergistic effect of disease prevention and control and growth regulation.

The invention discloses application of bdellovibrio bacteriovorus Bd3 as a bacterial disease control agent, and relates to the technical field of bacterial disease control, the bdellovibrio bacteriovorus Bd3 fermentation broth is used as the bacterial disease control agent in aquaculture, and a preparation method of the bdellovibrio bacteriovorus Bd3 fermentation broth comprises the following steps: preparing a culture medium of the bdellovibrio bacteriovorus Bd3; a bdellovibrio bacteriovorus Bd3 culture medium is placed in a fermentation tank, a bdellovibrio bacteriovorus Bd3 propagation seed solution is poured into the fermentation tank, and the bdellovibrio bacteriovorus Bd3 fermentation liquor is obtained after constant-temperature standing. The invention has splitting activity on common pathogenic bacteria in aquaculture, can be used for preventing and controlling bacterial diseases in the aquaculture process, and overcomes the problem of drug-resistant bacteria generation caused by excessive application of antibiotics.

The present invention discloses a pest identification method and system based on image analysis, which belongs to the field of image data processing technology. The method includes: constructing a pest image recognition model based on the YOLO algorithm; constructing a pest image segmentation model based on the Mask R-CNN algorithm; constructing a pest disaster assessment model based on the SVM support vector machine; obtaining an image to be detected; determining whether the image to be detected contains pests and the specific type of pests through the pest image recognition model; when the image to be detected contains pests, segmenting a pest detail image from the image to be detected through the pest image segmentation model; and evaluating whether a pest disaster occurs according to the pest detail image through the pest disaster assessment model. The present invention can timely and accurately assess whether a pest disaster occurs, timely and effectively take countermeasures to prevent the outbreak of pest disasters, avoid the further spread of pests in a short time, and avoid a serious decline in crop yields due to pest disasters.

The invention discloses a pest recognition system and method based on data classification, and relates to the technical field of pest recognition. A trained pest classification model is used for recognition and classification, a pest recognition data set is constructed, if the recognized pest damage degree exceeds the expectation, pest outbreak data is collected, and if the recognized pest damage degree exceeds the expectation, the pest outbreak data is sent to a database; performing inducement analysis on insect attack outbreak in the pine forest area by using the trained insect attack outbreak factor identification model, generating an insect attack value according to insect attack outbreak data, and when the insect attack value exceeds an insect attack threshold value, outputting a planting processing scheme by a planting processing scheme library according to correspondence between inducement characteristics and the planting processing scheme; and when the adjustment of the pine forest planting state in the pine forest area does not achieve an expected effect, outputting a corresponding pest treatment scheme by the pest emergency treatment knowledge graph. By constructing a multi-stage alarm mechanism and a multi-stage emergency processing mechanism, when the insect pest breaks out, insect pest processing is realized at different levels, and the influence of the insect pest is reduced.

The present invention belongs to the technical field of industrial crystallization, and discloses a process for preparing D-tagatose crystals, which specifically includes the following steps: (1) under the assistance of ultrasound, after adding a seed solution to a saturated D-tagatose solution, the crystals are grown at 50-60°C; wherein, in the process of growing the crystals, materials are added while evaporating and concentrating; (2) after adding hydroxypropyl methylcellulose to the D-tagatose solution obtained in step (1), cooling and crystallizing are performed under infrared spectroscopy; (3) after filtering the D-tagatose solution obtained in step (2), a first filter residue and a filtrate are obtained, ethanol is added to the filtrate to continue crystallization, and then centrifuged to obtain a second filter residue, wherein the first filter residue and the second filter residue are D-tagatose crystals. The method of the present invention shortens the crystallization cycle, has a high yield, and the obtained product has high purity, good fluidity, stable quality, and is suitable for food industry production.

The invention provides a rainwater collecting, purifying and filtering device which comprises a rainwater collecting box and a rainwater purifying module located in the rainwater collecting box, the rainwater collecting box internally comprises two filtering bins and two settling bins, the two filtering bins are the first-stage filtering bin and the second-stage filtering bin respectively, and the two settling bins are the first-stage settling bin and the second-stage settling bin respectively; the first-stage filtering bin and the first-stage settling bin are arranged up and down and embedded in the right end of the rainwater collecting box, the second-stage filtering bin and the second-stage settling bin are arranged up and down and embedded in the left end of the rainwater collecting box, a partition plate is arranged between the first-stage filtering bin and the second-stage filtering bin, and an inclined guide groove is formed in the upper end of the first-stage filtering bin; the aeration assemblies are used for disturbing generation of algae, and one aeration assembly is located in the inclined guide groove. In the rainwater collection process, the problems that large particles in collected sewage containing rainwater are prone to blocking the purification module, and the collected water cannot be monitored in real time, and the quality of filtered water cannot be adjusted are solved.