8results about How to "Cause harm" patented technology

The application discloses a method for establishing end-to-end secure communication of unmanned aerial vehicle under cloud network architecture, and takes cloud server as a security service center to provide full-process authentication service for unmanned aerial vehicle end system; the cloud server only issues public authentication materials to unmanned aerial vehicles, and session key negotiation and establishment of end-to-end secure communication are realized between unmanned aerial vehicles; the unmanned aerial vehicle end system does not need to store authentication materials of other unmanned aerial vehicles in advance, the cloud server is driven by specific tasks, and specific authentication materials required for key negotiation are issued to unmanned aerial vehicles which need to be securely cooperated according to task requirements. The application only requires that the cloud server and any one of the unmanned aerial vehicles for key negotiation establish a communication connection, and the authentication materials issued by the cloud server can make the unmanned aerial vehicles realize key negotiation and establish an end-to-end secure channel in a specific range; different temporary public keys are used for each request message, which can effectively prevent the harm caused by long-term and short-term secret leakage.

The application discloses a kind of based on inflation plate's spray type liquid cooling battery energy storage cabinet and control method, including energy storage cabinet cabinet and heat management module, the battery pack containing electric core is placed in the energy storage cabinet cabinet inside, spray cooling module, fire-fighting module, control module and energy storage converter module;It also discloses a kind of control method simultaneously, so that electric core works at optimum temperature, guarantees electric core safety, prolongs electric core life;Adopt spray liquid cooling mode, contact thermal resistance is lower, surface temperature uniformity is better;Each module is using module integration design, space structure is compact, installation mode is simple, flexibility is high, adapts to different size energy storage battery pack.

The application relates to the field of agricultural spraying machines, and discloses an agricultural spraying machine with a solar photovoltaic structure and a working method thereof, which comprises a base, two supporting rods, a movable box, a water storage bucket, a first water pump, a spraying pipe, two spray heads, four moving wheels, a rotating motor, an air pipe, a fan, an activated carbon adsorption plate, a sterilization layer, a photovoltaic panel and a cleaning brush. The two sides of the movable box are rotationally connected with the upper ends of the two supporting rods respectively, and the axis of the air pipe is arranged along the inclined direction of the movable box. The fan, the movable box, the cleaning brush and the photovoltaic panel are arranged, so that the spraying of the spraying machine is more uniform; the dust on the surface of the photovoltaic panel is cleaned by the cleaning brush, so that the power generation efficiency of the photovoltaic panel is improved; the airflow sprayed from the air pipe protects the whole body of a user, keeps the air inhaled by the user clean, and thus protects the health of the user.

This application provides a graphene-PBAT composite aerogel and its preparation method, belonging to the fields of biodegradable materials and aerogel technology. The method includes the following steps: preparing a graphene oxide dispersion; adding an amphoteric surfactant to the graphene oxide dispersion, stirring until homogeneous, filtering, washing, and freeze-drying to obtain modified graphene oxide; using 1,4-dioxane as a solvent to completely dissolve PBAT in 1,4-dioxane to obtain a PBAT solution; adding the modified graphene oxide to the PBAT solution and ultrasonically dispersing until homogeneous for liquid-phase composite formation; after liquid-phase composite formation, adding deionized water, stirring until homogeneous, pouring into a mold, pre-freezing, and then freeze-drying. The composite aerogel of this application has characteristics such as high specific surface area, large porosity, and low density; the composite with modified graphene enhances the mechanical properties of PBAT, improving the problems of low strength, poor weather resistance, and low modulus of PBAT, thus enabling the final composite aerogel to have a wider range of applications.

This utility model discloses a waste gas treatment device for the production of ferrite cores, relating to the field of waste gas treatment device design technology. It includes a fixed support plate, an impurity adsorption unit, and a waste gas purification body. A stable support leg is fixedly connected to each of the four corners of the lower surface of the fixed support plate. An impurity adsorption unit is provided on the upper surface of the fixed support plate, and the four corners of the fixed support plate are chamfered. The waste gas purification body includes a waste gas purification tower, a partition plate, a spray head, a water pump, a limiting plate, and a purification filter element. A waste gas purification tower is fixedly connected to the upper surface of the fixed support plate at the right side of the impurity adsorption unit. This device can treat the waste gas generated during the production of ferrite cores, preventing environmental pollution and minimizing harm to humans. The filter element is also easy to replace.

The application discloses a kind of real fly luring and killing agents.The real fly luring and killing agent is composed of the following components by mass percentage: 75-85% of apple snail meat hydrolysate, 3-7% of pest toxic components, 5-15% of auxiliary materials and 2-5% of stabilizers.The apple snail meat hydrolysate is a mixture of apple snail meat after protease hydrolysis and enzyme inactivation, and the pest toxic components are Metarhizium or Beauveria.The luring and killing agent uses the protein hydrolysate of invasive species apple snail meat as the main raw material to prepare food lure, and then adds a small amount of Metarhizium / Beauveria to prepare the luring and killing agent.The synergistic effect of food lure and Metarhizium / Beauveria significantly improves the luring and killing effect on real flies.The new real fly luring and killing agent has the characteristics of high efficiency and green environmental protection.

The application provides a biomarker group for detecting colorectal cancer, comprising AREG gene and ZKSCAN3 gene. The application also provides application of a reagent for detecting expression levels of AREG gene and ZKSCAN3 gene in preparation of a product for detecting colorectal cancer. The application further provides a product for detecting colorectal cancer, comprising a reagent for detecting expression levels of AREG gene and ZKSCAN3 gene. The biomarker group of the application has the advantages of high sensitivity, high specificity and high accuracy, and is especially suitable for detecting early colorectal cancer.

The invention discloses flame-retardant gel based on hydroxyethyl cellulose and sodium alginate as well as a preparation method and application of the flame-retardant gel, and belongs to the technical field of fire prevention and extinguishing materials for coal mines. The preparation method of the flame-retardant gel comprises the following steps: adding hydroxyethyl cellulose, acrylic acid, acrylamide and an initiator into an alkaline solution at 0-5 DEG C, and carrying out a polymerization reaction to obtain hydroxyethyl cellulose network gel; adding a solution containing Al < 3 + > into the sodium alginate solution, and cross-linking to obtain sodium alginate network gel; the preparation method comprises the following steps: mixing hydroxyethyl cellulose network gel, sodium alginate network gel and sodium bentonite, carrying out heat preservation at 48-52 DEG C to form the mixture, and soaking the formed mixture in a solution containing Al < 3 + > to obtain the flame-retardant gel based on hydroxyethyl cellulose and sodium alginate. By constructing a hydroxyethyl cellulose-sodium alginate double-network structure and combining the synergistic effect of the sodium bentonite, the synergistic improvement of the plugging performance, the water retention performance and the flame retardant performance of the composite gel is realized.