317 results about "Virus transmission" patented technology

The present invention relates to novel hetero-substituted benzimidazole compounds that have useful antiviral activity. More specifically, the invention encompasses hetero-substituted 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 hetero-substituted benzimidazole compounds as inhibitors of membrane fusion associated events, such as viral transmission. In another embodiment, the invention encompasses processes for making hetero-substituted benzimidazole compounds, methods of using the hetero-substituted benzimidazole compounds and compositions comprising the hetero-substituted 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 multi-barrel washing machine which comprises a plurality of washing barrels and a motor. The motor is coupled with a first gear. The bottom of each washing barrel is coupledwith a second gear. The first gear of the motor is in toe joint with the second gear of at least one washing barrel mutually. The second gear is driven to control each washing barrel to rotate by driving the first gear by the motor. It is better that the multi-barrel washing machine is a fully automatic small washing machine, and the water inlet / outlet tube of each barrel is integrally arranged tofurther save volume and weight. The multi-barrel washing machine uses a motor to drive the plurality of washing barrels to work, thereby classifying clothes and washing clothes simultaneously, ensuring that each barrel is specially used for one person, and avoiding cross contamination and bacteria and virus transmission among clothes.

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.

Fusion of the viral envelope, or infected cell membranes with uninfected cell membranes, is an essential step in the viral life cycle. Recent studies involving the human immunodeficiency virus type 1 (HIV-1) demonstrated that synthetic peptides (designated DP-107 and DP-178) derived from potential helical regions of the transmembrane (TM) protein, gp41, were potent inhibitors of viral fusion and infection. A computerized antiviral searching technology (C.A.S.T.) that detects related structural motifs (e.g., ALLMOTI5, 107x178x4, and PLZIP) in other viral proteins was employed to identify similar regions in the respiratory syncytial virus (RSV). Several conserved heptad repeat domains that are predicted to form coiled-coil structures with antiviral activity were identified in the RSV genome. Synthetic peptides of 16 to 39 amino acids derived from these regions were prepared and their antiviral activities assessed in a suitable in vitro screening assay. These peptides proved to be potent inhibitors of RSV fusion. Based upon their structural and functional equivalence to the known HIV-1 inhibitors DP-107 and DP-178, these peptides should provide a novel approach to the development of targeted therapies for the treatment of RSV infections.

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.

COVID-19 is a large virus with remarkable resilience, propagation and multiplication features that require complex technologic systems and manners to assure a reasonable protection. A transparent, multiuse face mask with valves and for inhalation of air from a specialized filter placed in a cleaner air space, and an exhalation valve that drives the exhaled air via a tube to a filter bladder placed on wrist and from there to a tube that has the release end near ground, or can be connected to the aspiration tube of the infrastructure, that removes it, preventing recirculation. The general convention that defines the usage method is that the building, buss, and any other enclosure provide clean antiseptic air above and consumer s have to release their exhalations down near floor from where the structure to remove them by a controlled air flow similar to clean rooms.The main condition is that people to place their exhalation exhaust sterilized and placed near ground in order to increase the probability to inhale clean sterile air at the head level. No filter is perfect, and no sterilization unit, therefore the enclosure has to deal with exhaust gas, and remove into the atmosphere safely. The work to keep people inside safe is done by both the enclosure that may provide vacuum lines to collect the exhaled air, and by the people who will use correctly the infrastructure. The system is designed for smart communities for everybody to wear for about 3 weeks when a covid-19 or other virus infection occurs to suppress its multiplication rate, without perturbation in their activity and then returning to normality.

The invention relates to a monitoring, tracing and early warning regulation and control system and method for virus transmission in a building. Indoor and outdoor environment parameters of a buildingcan be monitored in real time, physiological indexes of a human body are obtained in real time, the health state of the human body is judged, and the moving track and the droplet propagation track ofeach person are obtained, so that suspected infected persons and people in close contact with the suspected infected persons are timely and accurately recognized, and meanwhile response measures are taken for the suspected infected persons and people in close contact with the suspected infected persons. Besides, the propagation risk of the current indoor environment can be evaluated, the indoor environment is ventilated and purified according to the propagation risk evaluation result, the suspected infected person and the local area of the close contact person are effectively ventilated and purified, and the propagation risk is reduced. Building indoor environment parameters, human body health characteristics and virus transmission risk assessment are combined, the building indoor environment state can be accurately judged, suspected infected persons and people in close contact with the suspected infected persons can be recognized in real time, and overall ventilation purification andlocal purification treatment on the indoor environment are achieved.

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 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.

The invention belongs to the field of agricultural production and discloses a formula of a biological source bait for preventing and controlling Solenopsis invicta Buren and a use method thereof. The formula is used for preventing and controlling invasive insect pest Solenopsis invicta Buren. The biological source bait utilizes one or more active ingredients such as Metarhizium fkavoviride, verticillum lecanii, bacillus thuringiensis and beauveria bassiana. The active ingredients and baits such as pork, konjac glucomannan, sodium chloride, egg yolk powder, monosodium glutamate and sucrose are mixed to form an insecticide, the insecticide is put on the upper edges of a Solenopsis invicta Buren nest or is placed at a position where there is Solenopsis invicta Buren invasion hidden danger so that prevention and control of Solenopsis invicta Buren are realized. The formula is simple and is easy to use. Through virus transmission from worker Solenopsis invicta Buren to ant Solenopsis invicta Buren, nest elimination is realized. The active ingredients are insect pathogens and can effectively prevent environmental damage caused by pesticide application.

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 network anti-attack device, system and method, a readable medium and a storage controller. The network anti-attack device comprises a camouflage behavior processing center, a linkage processing center and a threatening behavior analysis center, wherein the camouflage behavior processing center is used for camouflaging a preset number of false terminals and making the false terminals to transmit analog broadcasts to a network; the linkage processing center is used for intercepting the attack and extracting attack behavior characteristics of the attack when the analog broadcasts are attacked and transmitting the attack behavior characteristics to a defensive system in the network to interrupt the attack through the defensive system; and the threatening behavior analysis center is used for receiving interrupt information transmitted by the defensive system after successfully interrupting the attack, extracting interrupt information characteristics of the interrupt information, packaging the attack behavior characteristics and the interrupt information characteristics to form a characteristic group and transmitting the characteristic group to a database to form a characteristic library. The problem that a passive defense mode falls behind virus transmission is effectively solved, an overall network defense linkage system is formed, and the security of a real terminal is improved.

The invention discloses a mask which comprises a mask body. The mask body is provided with an elastic connecting part used for matching the head of a wearer to fix the mask body. The mask is characterized in that the mask body is provided with a color changing part made of a temperature-sensitive color changing material; at least one part of the color changing part is exposed, or the color changing part is covered with a light transmitting layer, so that the color change generated by the color changing part due to the skin temperature of the human body can be displayed and observed. By the adoption of the mask, the body temperature change of a wearer can be observed in real time; when the body temperature of the wearer reaches or exceeds a warning value, medical detection can be conductedas soon as possible; meanwhile, alertness of other people can be improved, and the mask is particularly effective in virus transmission. Besides, the mask further has a good decorative effect.

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 technical field of USB flash disk virus isolation, in particular to a USB flash disk virus isolator and a working method thereof.The USB flash disk virus isolator comprises a main control chip used for strictly controlling and checking data access; the storage module is used for caching the isolated virus files; the network interface module is accessed to a local areanetwork by adopting an international general network protocol; the USB interface module is used for being externally connected with a USB flash disk; the display module is used for visually displayingthe equipment operation state; the storage module, the network interface module, the USB interface module and the display module are respectively connected with the main control chip through corresponding lines; uSB flash disk data is filtered and screened through a built-in system program of the main control chip; the system program automatically detects and identifies the safety file of the white list and the virus file of the black list, the safety content on the white list is allowed to be connected with the PC through the local area network to be read and written, and once the system program scans the content on the black list, the corresponding content is immediately isolated and hidden, so that virus spreading caused by misoperation of a client is avoided.

The invention is an Internet worm virus early-precautioning method, and its characteristic: firstly configuring a set of equal network application programs for an equal network composed of private intranet and public Internet user on the basis of existing network management software of each node system of the Internet, then constructing a characteristic data structure containing two parts of automatic synthesis and artificial processing for each node system, and giving information accumulation eigenvalue in the form of properties. Once its node system or network is abnormal, the equal network application program will start cooperative mechanism to transmit precaution information to each node system of the whole Internet in the form of equal network information, so that it adopts conservative behavior; if the information accumulation eigenvalue on the node receiving the information is over the precaution value, it will activate the system to search and filter virus, thus achieving the purpose of precautioning and rapidly blocking worm virus transmission. It meets the requirements for safety, autonomy and early precaution of the whole Internet.

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 relates to a rhopalosiphum padi Linnaeus EF1-alpha reference gene partial sequence as well as a cloning method and application thereof, belongs to the field of molecular biology, and particularly relates to rhopalosiphum padi Linnaeus EF1-alpha, and the nucleotide sequence of the rhopalosiphum padi Linnaeus EF1-alpha is indicated as SEQ ID NO.1. The nucleotide sequence of the obtained rhopalosiphum padi Linnaeus EF1-alpha (837bp) can be used as a reference gene for studying the hopalosiphum padi Linnaeus EF1-alpha functional gene or the gene expression at different development periods as well as a reference gene for studying the relative level of the expression of virus in the body when being used as a virus transmission interbody.

The invention relates to a cultivation house excrement real-time separating, collecting and conveying system based on a slatted floor. The cultivation house excrement real-time separating, collectingand conveying system comprises a cultivation house ground, a dry excrement storage tank, a urine storage tank, the slatted floor, a separation conveyor, at least one fence, an excrement collecting tank and a slatted floor sweeping device and is characterized in that the cultivation house ground is at least provided with the excrement collecting tank, the slatted floor is flatly laid on the upper portion of the excrement collecting tank and used for allowing dry excrement and urine on the floor to conveniently fall into the excrement collecting tank, and at least one fence is fixedly mounted onthe cultivation house ground area corresponding to the excrement collecting tank; one side of the feed inlet of a spiral conveyor is connected with the dry excrement outlet side of the separation conveyor, and the discharge outlet of the spiral conveyor is arranged at the inlet of the dry excrement storage tank to convey dry excrement to the dry excrement storage tank. By the cultivation house excrement real-time separating, collecting and conveying system, real-time excrement collecting and conveying are achieved, the excrement is prevented from scattering and remaining in the cultivation house for a long time, the discharge quantity of malodorous gas such as ammonia gas is reduced, the environment in the cultivation house is improved, bacterium breeding and virus transmission probability are lowered, and nutrient loss rate in the excrement is lowered.

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.