317 results about "Virus transmission" patented technology

The present invention discloses applications of guaiacol in a rice stripe disease, wherein the applying concentration of the guaiacol liquid is 50-500 [mu]g/mL, and an emulsifying agent is added to the guaiacol liquid as a surfactant. According to the present invention, the guaiacol is used for rice stripe disease prevention and treatment, the rice stripe disease prevention and treatment effect of the guaiacol can achieve 53%, and the guaiacol is combined with the chemical pesticide for virus transmission mediator Laodelphax striatellus prevention and treatment so as to achieve the effect of concurrent disease and pest treatment; and experiment results prove that the guaiacol can be used for effectively preventing and treating the rice stripe disease.

The invention discloses an internet of things security access gateway. A three component framework of 2+1 is adopted in a hardware layer of the gateway. The three component framework comprises an outer host machine, an isolation exchange component and an inner host machine. A filed programmable gate array (FPGA) card based on hardware serves as the isolation exchange component so that isolation of a network and safe and rapid exchange of data are achieved. Device certification, access control, protocol analysis, data security check, data ferry service and audit service are achieved through software layers on the inner host machine and the outer host machine and action of the services can be traced. The internet of things security access gateway has the advantages that relative requirements that data collected by an internet of things perception terminal is introduced to a core network safely are satisfied, network attack, Trojan horse virus transmission and denial of service attack are prevented from being launched through a sensing layer network with weak safety protection to the core network, safe exchange of data is achieved under the condition that the sensing network and the core network are in network isolation, and practical application of the internet of things is achieved under the condition that safety is guaranteed.

The invention relates to a material for wound healing and skin reconstruction containing a peptide, wherein the peptide is a self-assembling peptide which is an amphiphilic peptide having 8 to 200 amino acid residues with periodic repeats of alternating hydrophilic amino acids and hydrophobic amino acids, and forms a stable β-sheet structure in an aqueous solution in the presence of a monovalent ion. The material for wound healing and skin reconstruction of the present invention is capable of healing a wound area of mammals quicker than spontaneous recovery without leaving any scars, wherein the material has no potential risk of infectious disease such as virus transmission.

The invention relates to the technical field of sharing and discloses a multimedia file sharing system and method. The multimedia file sharing method comprises the following steps of establishing a special storage region by a using terminal; uploading an index table of the multimedia file to a server; receiving the index table and commanding the using terminal to send a file block to a correlated using terminal by the server; and downloading the multimedia file by using the using terminal, wherein the server controls the using terminal to issue the file block of a multimedia onto different using terminals in advance in a mode similar to virus transmission, monitors the corresponding index table of the multimedia file in real time and controls the issuing degree of the multimedia file block. A user can upload and download the multimedia file within a rather short time, thereby easily sharing media with persons in a social sphere of the user and is supplied with convenience, the configuration and maintenance costs of the server are also lowered, and the utilization ratio of network resources is increased.

Methods of inducing systemic acquired resistance to infection in a plant are provided. The methods comprise applying a composition comprising a Bacillus control agent to said plant wherein said plant is capable of producing defense proteins. Also provided are, methods for controlling one or more plant diseases, methods for preventing plant virus transmission, methods for preventing and/or treating soil-borne plant pathogens using the Bacillus control agent of the present invention, and methods of generating bacterial spores. In addition, synergistic biocontrol combinations and methods of using the same are provided.

The present invention relates to novel benzimidazole compounds that have useful antiviral activity. More specifically, the invention encompasses benzimidazole compounds that inhibit membrane fusion associated events such as viral transmission, reduce viral load or otherwise treat viral infections. The invention also encompasses the use of benzimidazole compounds as inhibitors of membrane fusion associated events, such as viral transmission. In another embodiment, the invention encompasses processes for making benzimidazole compounds, methods of using the benzimidazole compounds and compositions comprising the benzimidazole compounds. Finally, the invention provides methods for treating, preventing or ameliorating symptoms associated with respiratory infection, particularly that caused by Respiratory Syncytial Virus utilizing the novel benzimidazole compounds of the invention.

The invention discloses a network virus transmission behavior modeling method. The method comprises a network initialization process, a virus transmission process, a node detection process, an immunization and immunization failure process, a model evaluation process and an immunization strategy proposing process. When a model runs, an infected state (I) node transmits a virus to a neighbor node at certain probability; an infectious state (S) node is infected into the infected state (I) node by the virus at the certain probability; meanwhile, the infected state (I) node is isolated at the certain probability, and becomes an isolated state (Q) node which does not have the virus transmission capacity and cannot be infected; and an immune state (R) node which cannot be infected by the virus appears in the model through treatment on the isolated state (Q) node and immunization on all nodes. The factors affecting virus transmission in the SIOR model include total node number n, average node degree <k>, initially infected node number n<0>, virus transmission rate alpha, isolating treatment rate beta and isolating recovery rate lambda; and the cured node has immune efficacy probability mu, vaccine injection rate gamma and vaccine failure rate eta. An achievable immunization strategy is proposed on the basis of these factors.

The invention provides an anti-rice black-streaked dwarf virus field inoculation identification method for rice varieties, and belongs to the technical field of agricultural science. A piece of rice field with certain conditions is selected as an identification nursery, different rice varieties are sown in special stages, it is identified that virus transmission interbody small brown rice planthoppers in the nursery have certain virus carried rate and population density after wheat harvest, and after rice grows to a specific growth period, the anti-rice black-streaked dwarf virus level of the rice varieties is evaluated according to the severity degree of disease. With the method, anti-rice black-streaked dwarf virus identification can be performed on a large number of rice varieties at a time, and the defects that the manual identification scale in a laboratory and the identification variety number are small are overcome. The identification method can be applied to the multiple fields of screening of anti-rice black-streaked dwarf virus rice varieties, variety resistance evaluation, resistant variety breeding, researching on the law of genetics of resistance and the like.

The invention provides a method and equipment for judging whether software contains viruses or not on the basis of behaviors. The method includes the following steps of S1, acquiring at least one kind of sensitive behavior information of a to-be-detected software; S2, setting corresponding weights for the acquired sensitive behavior information; S3, comprehensively computing the weights acquired in the S2 according to preset algorithm, and obtaining a total weight value; and S4, determining the probability of the to-be-detected software containing the viruses according to the total weight value. The method and the equipment for judging whether the software contains viruses or not on the basis of behaviors determine the virus containing probability of the to-be-detected software by analyzing executed or possibly-executed sensitive behaviors of the software, and thereby, viruses searched are not only limited to the known viruses in virus bases but include unknown viruses, and software users can find viruses contained in the software in time so that spreading of the virus transmission range and possible damages are avoided.

The invention relates to the field of plant protection and an insect breeding technology, in particular to a single-end feeding method of agriphila aeneociliella. The method comprises the steps that a single insect breeding case is adopted to serve as a breeding tool, and entangled cocooning and cannibalism among larvae can be avoided; mass propagation of pathogenic microorganisms such as bacteria and viruses can be effectively inhibited, and bacterium and virus transmission among insects is avoided; degerming and cleaning are conducted conveniently at any time, and a disinfection measure is adopted; timely replacing on feed is facilitated, and group consistency is kept; sterile vermiculite with the moisture of 20% serves as a pupa cell making medium, mature larvae are put on the medium surface, and pupating of the larvae and adult eclosion are facilitated.

A method for monitoring malicious link injection into website source code, may include: monitoring a modification operation on a website source code file and obtaining a changed code segment; analyzing the changed code segment to extract an external link; determining whether the external link is a suspicious or malicious link; and sending an alarm message if it is determined that the external link is a suspicious or malicious link. According to the method for monitoring malicious link injection into website source code, changed content of source code can be monitored in real time, so as to effectively prevent a common type of virus transmission manner in which a malicious redirection website address is injected into page code of a legal website after a system write permission is obtained by using a vulnerability of an operating system or a third-party application. In addition, the present disclosure further provides a related apparatus.

The invention discloses a dot enzyme-linked immunosorbent assay (ELISA) method for detecting bemisia tabaci carrying a tomato yellow leaf curl virus and application of the method. Field bemisia tabaci is collected, pretreated and grinded, monoclonal antibody of the tomato yellow leaf curl virus is used, the dot-ELISA method which is used for detecting virus transmission medium bemisia tabaci is established, a quick kit is developed and researched, and the tomato yellow leaf curl virus which is carried by the bemisia tabaci is detected. By the aid of the method, the virus carrying rate of the field bemisia tabaci can be surveyed in a large scale, and the field tomato yellow leaf curl disease outbreak trend is predicted. The method is quick, efficient, sensitive, special, high in flux and simple to operate. The tomato yellow leaf curl disease can be diagnosed quickly, predicted and controlled scientifically.

The invention discloses a functional healthy medical fertilizer for activating plant immunization, facilitating growth, obstructing virus transmission by insects, which essentially consists of 1-18 percent of sodium alginate, 0.5-12ppm of salicylic acid, 0.5-12ppm of lactone of zinc sulfate and 1-10 percent of brassin according to quality percentage. When applied to transplanted seedlings for root soaking and leaves surface spraying, the solution of medical combination of the invention shows remarkable biological activities: (1) being able to facilitate development of a root system and inhibiting infection to the root system from soil borne diseases, (2) obstructing the virus transmission of insect vectors, being able to replace or remarkably reduce the use of chemical insecticide on the field and presenting huge economic, environmental and social benefits, (3)inhibiting the infection of the virus, (4) activating functions of an immune system of solanaceae plants, presenting curative effects for virus diseases and securing vigorous growth of plants.

The invention relates to the field of veterinary medicine, in particular to an animal recombinant protein vaccine. A recombinant protein contains an epitope of an antigen to a porcine circovirus (PCV) and an epitope of an antigen to a porcine reproductive and respiratory syndrome virus (PRRSV), and supports the vaccine after being emulsified. According to the recombinant protein, a target fragment shown as SEQ ID NO:6 is synthesized, the target fragment and a PGEX-4T-1 vector form a recombinant vector, a recombinant plasmid is converted into a host bacterium induced expression, and the recombinant protein is extracted. The recombinant protein content for swine immunization is a product of 4-hour host bacterium induced expression, and the recombinant protein at concentration of over 80 percent is purified by processes of inclusion body recovery, dissolution, concentration and the like. The prepared recombinant protein has a stable property, does not have the characteristics of virus transmission and the like, and is greatly advanced or plays an irreplaceable role in the researches and development of PRRSV and PCV2 prevention and control vaccines.

The invention discloses an unknown virus detecting method. Based on the characteristics of file formatted storage and the characteristics of network file transmission, through capturing bi-directional network flows in the same connection, a system extracts file extension names in requests which are transmitted to a server by a client respectively and analyzes file header contents in data which are responded by the server to the client; and whether file types of the file extension names and the file header contents are matched with each other are contrasted, if the file types of the file extension names and the file header contents are matched with each other, it is considered as normality, otherwise, it is considered as abnormality, and alarms can be emitted. With the unknown virus detecting method adopted, approaches of virus transmission by using camouflage can be blocked under the situation that conventional anti-virus software is incapable of effectively dealing with unknown viruses.

The invention belongs to the technical field of pesticides, and relates to a fungicidal and insecticidal composition containing lentinan. The fungicidal and insecticidal composition is characterized by comprising the following components in percentage by weight: 1 to 20 percent of fipronil and 0.1 to 2 percent of the lentinan. The fungicidal and insecticidal composition can be prepared into a suspending agent. The fungicidal and insecticidal composition provided by the invention improves the control effect of medicaments on plant virus diseases by controlling insects which are virus transmission media of the virus diseases and treating the virus diseases.