18 results about "Chemical control" patented technology

The application discloses a multi-carboxyl copolymer aqueous composition for pulp adding in packaging paperboard, synergism in short-stay pulp of packaging paper and fiber synergism in wet end of bamboo pulp paper, and a preparation and application method thereof, and belongs to the technical field of pulp and paper chemicals and wet end chemical control. The composition contains carboxyl-rich copolymer, and can be selected as high filtration rate homogeneous aqueous solution type, flexible type acid or bamboo pulp low cation density copolymer according to paper types, and is prepared through water phase free radical polymerization. In application, the composition is diluted and then added in a divided mode after a fan pump outlet to a pressure screen inlet or after a cationic polyacrylamide retention agent or in a bamboo pulp system. The method is beneficial to improving fiber combination, drainage stability, first-pass retention rate, white water stability and paper strength, and improving the adaptability of wet end dosing windows of different paper types.

An attractant for Telenomus remus Nixon to control Spodoptera litura Fabricicus is provided. The attractant includes a solvent and at least one of the following components: 1,3-dichlorobenzene, benzothiazole, and octane. The attractant can effectively attract Telenomus remus Nixon to parasitize Spodoptera litura Fabricius eggs, such that the growth of a pest quantity is inhibited and the pest population gradually dies out, which achieves the purpose of pest control. The attractant is a green, non-toxic, and pollution-free attraction substance. Therefore, the attractant can solve a series of problems such as pesticide residues, environmental pollution, and food safety caused by chemical control, and is of great significance for the green control of Spodoptera litura Fabricius.

This invention relates to a method for modeling the curing kinetics of polymer resins, specifically providing a method for fitting the curing kinetics of polymer resins based on a segmented model. The method employs a three-stage segmented kinetic model. In the first stage, an external catalytic model is introduced to quantify the inductive acceleration effect of the co-catalyst in the early stages of the reaction. In the second stage, the Kamal-Sourour model is used to ensure the fitting accuracy of the chemical control region. In the third stage, a diffusion correction term based on thermodynamic evolution is introduced to quantify the diffusion resistance caused by entering the glassy state in the later stages, significantly improving the fitting accuracy at the end of curing. More importantly, this invention creatively proposes a method based on the activation energy minimum point. α tr and dynamic glass transition point α vit The segmentation points effectively couple the external catalytic model, the Kamal-Sourour model, and the dynamic diffusion model, effectively solving the problem of inaccurate fitting of the full-cycle kinetics, improving the fitting accuracy, and providing data support for the fine-tuning of the curing process.

This utility model relates to the field of insect trapping technology, specifically a chestnut elephant trapping device, comprising: an insect-attracting cover, a collector, and a attractant; the insect-attracting cover has an insect inlet at its lower end and an insect outlet at its upper end. When in operation, one side of the insect inlet is fixed circumferentially to the tree trunk, creating a passage between the other side of the inlet and the trunk for insects to enter; the collector contains a collection space, with its lower end covering the upper end of the insect-attracting cover, forming a collection groove between the lower end of the collector and the upper end of the insect-attracting cover to prevent insect escape; the attractant is located within the collection space and includes a main body with spiked protrusions on its outer wall, giving the attractant a shape resembling a spiky chestnut. The attractant is made of a dark red material, or its surface is covered with a layer of dark red material. This utility model overcomes the shortcomings of existing physical and chemical control methods, which easily disrupt the original ecological balance of chestnut trees and lead to environmental pollution.

The application discloses a feed bacillus NGT8 and application thereof in prevention and treatment of wheat stem base rot. Paenibacillus pabuli The feed bacillus (Bacillus NGT8) provided by the application is preserved in the Guangdong Microbial Culture Collection Center on May 7, 2025, and the preservation number is GDMCC No. 66267. The strain has good bacteriostatic effect on various plant pathogenic bacteria, has broad-spectrum bacteriostatic property, and can be used for preventing and treating plant diseases caused by the pathogenic bacteria. The NGT8 strain has good prevention and treatment effect when applied to the prevention and treatment of wheat stem base rot, and can reduce the incidence and disease index of wheat stem rot. The NGT8 strain provided by the application can be used for developing more plant pathogenic bacteria inhibitors or biocontrol agents, reducing the use of chemical pesticides and pesticide residues, and providing a new way for gradually replacing chemical control with biological control.

This utility model relates to the field of agricultural planting and discloses a self-drip irrigation device for hemp cultivation using a chemical control agent. It includes a base with nozzle adjustment structures fixedly connected to both sides of the base. This self-drip irrigation device for hemp cultivation uses a second column and a first connecting rod for rotational connection, providing a stable fulcrum for the first connecting rod. This rotational connection ensures smooth rotation of the first connecting rod as the movable block moves, guaranteeing a smooth adjustment process. Three movable blocks connected to two first connecting rods and two second connecting rods form a linkage mechanism, enabling equidistant adjustment between nozzles. Limiting rods guide the movable blocks, ensuring the accuracy and stability of the nozzle equidistant adjustment. Overall, this improves the practicality and reliability of the self-drip irrigation device for hemp cultivation, solving the problems of fixed nozzle numbers, easy damage, and frequent malfunctions in traditional equipment.

This invention relates to the field of chemical control technology and discloses a method and system for risk assessment of the entire life cycle of laboratory chemicals. Through storage incompatibility analysis, this invention achieves accurate identification, classification, isolation, and control of risks associated with incompatible storage. It also quantifies and records the degradation process of chemicals accumulated during long-term storage through environmental stress degradation analysis, providing a realistic degradation baseline for subsequent stages. By extracting key feature information from experimental record data and dynamic parameters, the impact of the experimental process on the subsequent stability of waste is transformed into structured data. Finally, the final test data, hazardous characteristic time-series data, and process influencing factor set are integrated to conduct risk evolution simulation, enabling forward-looking prediction of risk evolution trends during waste storage. This invention, through the quantitative transmission and integration of risk information throughout the entire life cycle, solves the problem of inaccurate risk assessments caused by independent assessments and fragmented information in traditional methods.

This invention relates to a strain of *Bacillus wiedmannii* that inhibits plant pathogens and its applications, within the field of biological control. It aims to address the negative impacts of chemical control methods on the ecological environment and human health. The *Bacillus wiedmannii* strain is identified as *Bacillus wiedmannii* SJZ, deposited at the China Center for Type Culture Collection (CCTCC) on December 23, 2024, with accession number CCTCC NO: M 20242884. This *Bacillus wiedmannii* strain inhibits *Sclerotinia sclerotiorum* and *Heterophyllaria rubra*. It secretes proteases, cellulases, and chitinases. This *Bacillus wiedmannii* strain is also used for nitrogen fixation, secreting siderophores and IAA (inorganic acid oxidase).

The present application relates to the field of plant disease and pest control, in particular to the field of crop gene editing biological breeding. Specifically, it relates to a mutant maize zinnia-glucoside-oxygen-methyltransferase gene family, a coding protein and a method and use for controlling hemipteran pests, especially controlling aphid damage to plants. For the first time, the present application simultaneously targets and edits multiple paralogous genes of the maize zinnia-glucoside-oxygen-methyltransferase gene family through multi-target gene editing technology, thereby enhancing the aphid resistance level of maize plants throughout the whole growth cycle and the whole plant. The technical solution of the present application solves the problems in the prior art such as poor effect of chemical control on aphids, serious environmental pollution, and invalidity of Bt insecticidal proteins against aphids; can widely create new anti-aphid maize germplasm resources, solve the problem of lack of aphid-resistant maize germplasm, and provide an efficient, environmentally friendly and low-cost aphid control solution for maize production, which has important production application value.

The embodiment of the present application relates to the field of new energy green chemical production and operation, and discloses a new energy green chemical control method, device, equipment and storage medium, the method comprises: obtaining the power generation prediction data of the new energy station in the next time period;According to the power generation prediction data, the initial value of the variable sequence of the green chemical device and the dynamic prediction model of the green chemical device, the set value of the operation variable sequence of the green chemical device in the next time period is determined;The set value of the operation variable sequence is sent to the green chemical device to control the operation of the green chemical device in the next time period.It can solve the problem that the existing green chemical power fluctuation is large, a large number of energy storage equipment is needed to maintain the stability of power supply and a large number of hydrogen storage equipment is needed to maintain the stability of raw material supply, which leads to high cost, greatly improves the economy.

The application discloses application of CsESE3 gene or a protein coded by the same in regulation of branch development of plants and belongs to the technical field of plant genetic engineering. Traditional citrus hybrid breeding for cultivating ideal plant type plants is long in period, low in selection efficiency and few in cultivatable traits. Artificial control of branches is high in labor cost, and chemical control of branches has the risk of drug damage. The application proposes a new scheme for regulating citrus branch development based on CsESE3 gene expression, that is, the expression of CsESE3 gene is improved to significantly promote the development of branches, so that CsESE3 can become a target for regulating the development of citrus branches.

This invention belongs to the field of agricultural pest repellency technology, specifically involving the application of eucalyptol and / or trans-2-hexenal in repelling soybean thrips. Addressing the problems of increased pesticide resistance and excessive pesticide residues in existing chemical control methods for soybean thrips, this invention, for the first time, clearly demonstrates that eucalyptol from Sichuan pepper volatiles and trans-2-hexenal from tomato volatiles possess significant repellent activity against soybean thrips, and determines their effective concentration range. Eucalyptol at a volume ratio concentration of 10... ‑2 and 10 ‑3 v / v has a significant evasion effect, at 10 ‑1 It exhibits a highly significant repellent effect at a v / v ratio; trans-2-hexenal at a volume ratio concentration of 10 ‑1 It exhibits a highly significant repellent effect at v / v. This invention provides a new technological means for the green repellent of soybean thrips, helping to reduce the use of chemical pesticides, lower the risk of pesticide residues, and ensure the safe production of leguminous crops.

The application discloses a kind of early fruiting and high-yield cultivation method suitable for fast garden building of camellia oleifera, comprising the following steps: step one, ground preparation and base fertilizer application: overall ground preparation, ladder ground preparation, strip ground preparation;Step two, seedling selection;Step three, variety configuration;Step four, planting seedlings: choose December to March of next year to plant, avoid ice and snow extreme weather, drought in winter and spring is serious in rainy season;Step five, row ridge protects seedlings and water;Step six, interplanting and fertilization and moisture conservation;Step seven, stand and tree management;Step eight, scientific fertilization;Step nine: disease and pest control, adopt the method that biological control, physical control and chemical control are combined, effectively control disease and pest occurrence.The early fruiting and high-yield cultivation method suitable for fast garden building of camellia oleifera, by comprehensive use mountain land preparation, fertilization, seedling selection and variety configuration, compound planting, disease prevention and other measures, significantly improve the yield and quality of camellia oleifera forest, early garden building high yield, improve the economic benefit of camellia oleifera industry.

This invention relates to a strain of *Bacillus sicca* capable of producing volatile broad-spectrum antibacterial substances and its applications, belonging to the field of biological control technology. To address the shortcomings of chemical control of tomato gray mold, this invention provides a strain of *Bacillus sicca* and its applications. This strain, isolated from honeysuckle, produces IAA (inhibitory acetic acid), antimicrobial peptides, and volatile organic compounds. The volatile organic compounds produced by this strain exhibit broad-spectrum antibacterial activity, achieving a 100% inhibition rate against *Botrytis cinerea*, *Fusarium oxysporum*, *Fusarium graminearum*, and *Cucumis mellitus* var. *cubiclesii*. Furthermore, this strain demonstrates excellent control efficacy against tomato gray mold caused by *Botrytis cinerea* and can be used for the control of gray mold in tomato plants and for fruit preservation. Compared to traditional control measures, the *Bacillus sicca* strain provided by this invention offers advantages such as high efficiency, broad-spectrum disease resistance, easy spread and transmission, wide coverage, and low likelihood of developing drug resistance, making it a promising candidate for controlling diseases in greenhouse fruits and vegetables.

This invention belongs to the field of maize planting technology, specifically relating to an integrated online harvesting and threshing method for field maize, comprising the following steps: S1, selecting an early-maturing maize variety for field sowing; S2, implementing field water, fertilizer, and chemical control management for the maize, using chemical control to regulate excessive growth in the early growth stage, and refraining from irrigation and topdressing during the 5-9 leaf stage; managing the mid-growth stage as usual for field maize, and prohibiting irrigation during the milk-ripe to maturity stage in the later growth stage; S3, determining the maize kernel content x at the physiological maturity stage, and determining the straw cutting length based on the kernel content and row width; when the maize kernel moisture content x ≤ 25%, using an integrated harvesting and threshing machine to mechanically harvest the maize kernels; this method provides technical guidance for achieving mechanical harvesting of maize kernels, facilitates mechanical harvesting of field maize, improves labor efficiency, enhances kernel integrity, and reduces harvesting losses.

The present application relates to the technical field of macadamia planting, comprising the following steps: cutting diseased branches; chemical control: spraying 0.03-0.08% copper sulfate, 10-20 mg / L 2,4-dichlorophenoxyacetic acid, potassium fulvate 1800-2200 times liquid, 0.2-0.5% potassium dihydrogen phosphate, and tea bran water 150-300 times liquid on the macadamia nut trees from which the diseased branches are cut; tree vigor recovery: supplementing fertilizer at the roots of the macadamia nut trees from which the diseased branches are cut. The method of the present application can better prevent and inhibit the re-emergence of parasitic plants, and can also accelerate the renewal and rejuvenation of the macadamia nut trees, and ensure the normal growth and development of the fruits.

This invention relates to the field of ecological management technology, specifically to an invasive species eradication device and method. The specific technical solution is as follows: A method for eradicating invasive species employs a cutting mechanism in the eradication device to cut off the invasive species and feed it into a crushing mechanism for crushing. After crushing, the species is discharged onto the ground and sprayed with a reagent. Then, a rotary tillage mechanism is used to dig out the roots of the invasive species and mix them with the crushed invasive species and the reagent. The order of spraying the reagent and digging out the roots of the invasive species can be interchanged. This invention combines physical and chemical control methods to achieve the eradication of invasive species without damaging the local ecosystem.

1. Name of the product in this design: Overpressure measuring device. 2. Purpose of this product design: It is mainly used to measure the internal pressure of underground confined spaces, display the test results on the LCD screen in real time, and perform pressure over-threshold alarm detection and indication. When the overpressure measuring device is connected to the nuclear, biological and chemical control center via the CAN bus, it will upload the measured data, status information and alarm information to the control center. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The rear view is an uncommon face, so the rear view is omitted.