51 results about "Death time" patented technology

The invention discloses a Beauveria bassiana strain having high pathogenicity to silkworms and an application of the Beauveria bassiana strain in the production of Bombyx Batryticatus. The strain is preserved at the China General Microbiological Culture Collection Center on February 24, 2014 and the preservation number is CGMCC NO. 8861. The method for producing Bombyx Batryticatus by using the strain disclosed by the invention comprises the steps of preparing a spore suspension by using Beauveria bassiana and sterile water containing 0.2% of Tween-80, uniformly spraying the spore suspension onto the fifth-instar silkworm and inoculating for 4-5 days and obtaining Bombyx Batryticatus after a large quantity of silkworm died from muscardine. The Beauveria bassiana strain disclosed by the invention has high pathogenicity to the silkworm, the death time of the silkworms is consistent, the rigescence rate is high and is conducive to solving the problems about the standard production, quality control of Bombyx Batryticatus and the like.

The invention discloses a production method of white muscardine silkworms. The production method comprises the following steps of: (1) rejuvenescence of pathogens: adopting white muscardine silkworms to infect bombyx mori polypides and collecting fresh beauveria bassiana on the bombyx mori polypides; (2) toxin attacking for the pathogens: preparing the beauveria bassiana into beauveria bassiana liquid, closing doors and windows, uniformly spraying the beauveria bassiana liquid on silkworm bodies with newly-exuviated fifth larva and placing in a sealed space for 1-2 hours; (3) culture of silkworm bodies: opening doors and windows for ventilation, controlling the temperature to 22-26 DEG C and the humidity to 95-98%, and culturing till the silkworm bodies are died; (4) culture of muscardine silkworms: choosing out died silkworm bodies, culturing on a clean silkworm seat paper, controlling the temperature to 24-28 DEG C and the humidity to more than or equal to 80%, culturing till rigidification of the died silkworm bodies, growing white hypha conidia and obtaining semi-finished products of the muscardine silkworms; and (5) preparation of finished products of the white muscardine silkworms: collecting semi-finished products of the white muscardine silkworms, airing and drying to obtain the finished products of the white muscardine silkworms. The production method disclosed by the invention has the advantages that the death time of the silkworm bodies is neat, the rigidification time is short, the rigidification rate is high, the yield of the white muscardine silkworms is high and the quality is stable.

The invention relates to a fish protector, in particular to an oxygen supply fish protector which comprises a box, a carbon dioxide filter, an air inlet pipe, an air outlet pipe, an oxygen content sensor, a central processor and an air pump. The air inlet pipe is communicated with an air inlet of the air pump, the carbon dioxide filter is arranged on the air inlet pipe, the air outlet pipe is arranged in the box, a plurality of air outlet holes are formed in the wall of the air outlet pipe, an air inlet of the air outlet pipe is communicated with an air outlet of the air pump, gas pumped from the air outlet of the air pump is exhausted into the box through the air outlet holes, a sensing end of the oxygen content sensor is arranged in water inside the box, and the air pump and the oxygen content sensor are respectively electrically connected with the central processor. The fish protector automatically supplies oxygen for the water in the fish protector to solve the problems of short delayed fish death time, difficulty in fixing, potential safety hazards and short service life of an existing fish protector.

Disclosed is a method of wireless sensor network clustering by using Hopfield nerve network. The method belongs to the technical field of wireless sensor network, improves deficiencies of LEACH (Low Energy Adaptive Clustering Hierarchy) protocol to balance energy consumption of each node and distribution of each cluster-head, and models the clustering protocol into a combination optimization problem. The method improves traditional Hopfield nerve network local extreme value problem and fixed step length problem, and provides a dynamic step length chaotic Hopfield nerve network under the name of DSC-HNN. DSC-HNN achieves best cluster-head selection. The method can effectively achieve the principle of protocol, delay the death time of nodes to maximize the life cycle of the wireless sensor network to prolong the life cycle of network.

The invention discloses a new purpose of a compound Chinese Lobelia formulation for treating tumor or treating tumor in conjunction with chemotherapeutic treatment and radiation treatment, which belongs to the field of traditional Chinese medicine. Aiming at various injuries such as universal and serious damage to immunity of the organism, obvious reduction of white blood cells, bacterial infection, pain, and the like caused by simulative chemotherapeutic treatment and radiation treatment to a patient who suffers from tumor, experimental results indicate that the compound Chinese Lobelia formulation can obviously enhance the immunologic function, can remarkably increase the phagocytic function of scavenger cells, has protective action for reducing white blood cells, and has the weighting function for spleen and thymus; the compound Chinese Lobelia formulation has a certain in-vitro antibacterial action for staphylococcus aureus (G+) and colon bacillus (G-), has obvious protective function for a mouse infected by staphylococcus aureus and colon bacillus, can obviously reduce the death rate of the infected mouse and delay the death time to some extent; and the compound Chinese Lobelia formulation has obvious analgestic action for rats and mousse. The experimental results explain that the compound Chinese Lobelia formulation can be used for treating tumor or used for treating tumor in conjunction with chemotherapeutic treatment and radiation treatment and can increase the tolerance and the adaptability of a patient for chemotherapeutic treatment, strengthen the immunity of an organism, shorten the period of chemotherapeutic treatment or radiation treatment, reduce the toxic side reaction in chemotherapeutic treatment or radiation treatment, lower the death rate of a tumor patient and improve the life quality of a patient.

The invention discloses an optimal design method of an LLC resonant converter, which includes: determining the transformation ratio of the transformer according to the design index of the LLC resonant converter; core shape, preliminarily design a transformer; measure the parasitic capacitance of the transformer; deduce the relationship between conduction loss and dead time, and obtain the optimal dead time when the conduction loss is the smallest; determine the optimal dead time according to the optimal dead time Optimal magnetizing inductance; select the inductance ratio and quality factor that can satisfy the gain condition; get the resonant inductance value and resonant capacitance value from the optimal magnetizing inductance, inductance ratio and resonant frequency; change the air gap of the transformer to make the magnetizing inductance equal to the optimal magnetizing inductance . This method solves the problem that the traditional LLC resonant converter design method relies too much on experience and is not accurate enough, makes the design result more accurate, and can be extended to various applications.

The invention discloses a family tree generation method based on big data, the method comprising steps: 1, establishing a character data the character data includes numbers, name information, sexinformation, birth and death information, other name information and introduction information, wherein the birth and death information includes birth information and death information, the birth information includes birth time and birth place, and the death information include death time and death place; 2, establishing a genealogy database, wherein that data of the person connected with the direct kinship are input into the database according to the last name, and the genealogy is established accord to the generations of the clans; 3, genealogy generation: that genealogy is derived accordingto the genealogy data and the genealogy algebra. The method of family tree generation based on big data adopts decentralized terminals to upload branch line genealogy and aggregate it into a large database. Combining and linking decentralized feeder genealogy by comparing data from character and relationship searches is performed. The more feeder genealogies are entered, the more complete and complete the merged and connected genealogies are, and then the genealogies are generated according to the required algebra.

The invention discloses a cross-layer routing method utilized in a cognitive radio cellular network and based on energy optimization and network lifetime, and relates to the cognitive radio field in wireless communication technology. The cross-layer routing method has the advantages that new routing metrics are provided specific to characteristics that various cognitive users in the cognitive radio cellular networks have different dynamic spectrum resources and energy of wireless cognitive nodes is limited, route selection and channel assignment in the cognitive network are considered in a combined manner by the aid of a cross-layer technology, a priority algorithm for the shortest path is modified, the problem that load on individual nodes is excessively high, energy is used up in advance and the individual nodes fail are solved, death time of each node is delayed, the lifetime of the network is prolonged, large quantities of relay nodes can be selected as cognitive nodes owing to large quantities of available effective nodes, accordingly, the average energy consumption is reduced integrally, and a communication access success rate is increased.

The invention discloses application of astragalus polysaccharide on drosophila melanogaster in oxidation resistance and aging resistance, improvement of oxidation resistance of the drosophila melanogaster, enhancement of constitution of the drosophila melanogaster and improvement of improvement aging resistance of the drosophila melanogaster. By feeding of drosophila melanogaster culture media atdifferent concentration, the change of the astragalus polysaccharide for life and antioxidant enzyme activity of the drosophila melanogaster is studied in order to provide certain experimental basis for development of astragalus polysaccharide. When the concentration of the astragalus polysaccharide is 1.0 [mu] g / mL, the average life, half death time and the highest life of male and female drosophila melanogaster can be prolonged, the inverse-gravity crawling capacity of the drosophila melanogaster can be enhanced, the SOD enzyme activity and T-AOC content of organisms are the highest, and theMDA content is the lowest.

The invention provides a preparation method of a compound inactivated vaccine for treating avian influenza, belonging to the technical field of biological products for livestock. The preparation method comprises the following process steps: (1) preparing an inactivated virus suspension; and (2) preparing the compound inactivated vaccine for treating avian influenza. After a dilute solution prepared by the preparation method is inoculated to a chick embryo, the virus resistance of the chick embryo can be increased, and the death time can be prolonged, namely that the virus proliferation time can be prolonged; and compared with the prior art, the virus titer is increased by more than 8 times. According to the invention, a new vaccine adjuvant is adopted; and the prepared vaccine has double characteristics of water in oil and oil in water and integrates the advantages of the slow release effect of the vaccine and the combined action of water-soluble immune enhancers, egg yolk antibodies and the like. According to the invention, because effective immune enhancers are adopted, the immunity of an organism is greatly increased, the humoral immunity is increased, the organism is stimulated to generate an efficient neutralizing antibody, and the disease prevention capability of the organism is increased.

The invention relates to the field of animal virology and provides a chicken Newcastle disease virus and its separation method. The virus is code-named SDM01 and the invention provides its separation and preparation method. The inventor carries out biological collection for the strain and its collection number is CCTCC NO:V201109. Through chicken embryo passage, biological characteristics tests such as a hemagglutinin and serum neutralization test, an animal regress test and exogenous virus testing, are carried out. The test results confirm that the virus is the Newcastle disease virus. It isproved through chicken embryo mean death time (MDT), one-day-old chick intracebral pathogenicity index (ICPI) measurement and 6-week-old chick intravenous inoculation pathogenicity index (IVPI) measurement that the Newcastle disease virus is a virulent strain. Positive serum is prepared through separated strain and standard strain to carry out an HI cross neutralization test, a chicken embryo neutralization test, a cell neutralization test, an F and HN gene sequence sequencing and comparison and an immunity protective test. Results confirm that there exist large differences between the Newcastle disease virus SDM01 strain and traditional strains (La Sota strain and Clone30 strain) in both genetic typing and antigenicity.

The invention discloses a network clustering method of a wireless sensor based on fixed cluster heads, suitable to a network topological structure of a hierarchical wireless sensor. In the method, nodes with relatively larger energy are used as fixed cluster heads to form a static cluster, and a method for establishing an intra-cluster data forwarding path is provided for solving the problem of long span from a first node death time to a last node death time. Under the condition of the same network energy consumption, in compression with an LEACH algorithm, the method can greatly improve the utilization efficiency of network energy and effectively reduce the mean energy consumption of the network in every round without adding any hardware equipment, and thus the method has popularization and application values.