31results about How to "Eliminate potential threats" patented technology

The invention provides a method for reconstructing present shock insulation system of building and relative device, which can reconstruct present system into the ones that meeting flexible shock insulation theory and technique. When in earthquake, the rubber base or slide surface at the bottom of shock insulation building generates horizontal displacement, to insulate or baffle the transmission of earthquake additive force in building, to significantly reduce the damage on the buildings.

The invention provides a heavy metal sludge soil restorer, a preparation method and an application thereof in sludge elimination. The adopted technical scheme comprises: municipal sludge is subjected to pretreatment, thermophiles are used for decomposing organic substances, and a heavy metal is added to treat microorganisms. After the sludge restorer is used in a test, the effective removal rate of various pollutants in soil reaches 95% or above, in line with national standards. At the same time, sulfate can be used to repair heavy metal land in situ, and is also a very good organic fertilizer, and is beneficial to reduction in the use of chemical reagents and chemical fertilizers in agricultural production, thereby eliminating pollution sources and secondary pollution from the source.

The invention relates to a method for drawing gas and ponding from lower coal seam and upper goafs of a double lateral well, belongs to the fields of goaf ponding and gas drawing and utilization, andsolves the problem that a mature technology lacks in simultaneous gas and ponding drawing in present coal seam and goafs. Under a modern high-strength intensive exploitation condition, ponding and gasin the upper goafs and part of gas in the lower coal seam are drawn out at the same time, an extraction drilling well is used in high efficiently, and one shaft is extracted for multiple times, and is multipurpose. Ponding formed in the goafs is used while gas resource is extracted, and potential threat of ponding in the upper goafs in exploitation in the lower coal seam is eliminated. The gas inthe lower coal seal is extracted in advance, and the gas concentration and pressure during exploitation of the lower coal seam is reduced effectively. Thus, the method can be used to achieve a safe,efficient and resource maximized utilization production target, a lot of economic benefit is realized, and method has a high popularization value.

The invention discloses straw biological-organic silicon-potassium ferment bacterial manure and a preparation method thereof. The bacterial manure comprises 60%-80% of straw, 9.89%-19.78% of activated sludge, 10%-20% of beer diatomite clay, 0.1%-0.2% of leavening agent and 0.01%-0.02% of silicate bacteria. The preparation method sequentially includes the following steps: preparation of the materials; heaping and control over C / N; addition of the leavening agent and stirring; capping, heap turning and primary fermentation; addition of the silicate bacteria and after-ripening fermentation. According to the bacterial manure and the preparation method thereof, waste is recycled, the virtuous cycle of natural resources is promoted, and benefits are brought to the nation and people. With silicon as the core, the biological active bacteria are used for treating the straw, the process is simple, the straw returning-to-field production cost is low, the prepared manure can effectively increase and stabilize the yield of crops, and the effect of making the straw profitable is achieved. In addition, the prepared manure can restrain plant roots from absorbing heavy metal, reduce pollution to water and soil, make silicon and potassium in the straw return to the field safely without causing pollution and achieve the effect of recycling the waste without polluting the environment.

The invention belongs to the technical field of information security, and discloses a single sign-on (SSO) authentication system and method based on an inadvertent pseudorandom function (OPRF) and signcryption. The single sign-on authentication method includes a system initialization parameter stage, a user / service provider (SP) registration stage, an information retrieval stage and a user and SPbidirectional authentication stage. According to the invention, the OPRF and the signcryption scheme are combined, i.e., the OPRF value is obtained by blinding the password of the user through the OPRF and is used for encrypting the signcryption private key of the user, and the ciphertext is stored in the storage provider end. Before login, the user recovers the OPRF value and decrypts the retrieved ciphertext to obtain the signcryption private key, thereby realizing bidirectional authentication with the SP. The invention provides a security enhancement function for password leakage threats, an SP does not store a password or a password derivative value, a client accidentally leaks the password, and an enemy cannot counterfeit the password as the SP to deceive a user. According to the invention, common attacks in an SSO authentication system can be resisted and bidirectional authentication can be completed efficiently.

The embodiment of the invention discloses enterprise training equipment based on VR virtual simulation. The equipment comprises a base and two supporting columns symmetrically and fixedly connected tothe top of the base. A mounting base is jointly mounted at the tops of the two supporting columns, a swing assembly is mounted in the mounting base, a winding device is mounted at the bottom of the swing assembly, the winding device is connected with a safety rope, the bottom of the safety rope is connected with a seat plate, a simulation curtain wall is fixedly arranged at the top of the base relative to the two supporting columns, and the swing assembly comprises a swing groove formed in the bottom of the mounting base and a sliding rod fixedly connected to the inner wall of the swing groove. According to the invention, the swing assembly is used for simulating safety rope swing in an actual working environment, real working environment simulation and operation simulation are provided for employees in combination with the VR technology, the employees are helped to overcome psychological negative emotions and actual operation in advance when the employees are on duty, working accidents caused by psychological problems and operation problems of the employees when the employees are actually on duty are avoided, and potential threats are eliminated.

The invention discloses a saccharomyces cerevisiae fermented high-protein corn straw feed and a preparation method thereof. The feed is obtained by performing desulfurization treatment on corn steep liquor by saccharomyces cerevisiae, dissolving a proper proportion of desulfurized corn steep liquor into water, uniformly spraying the mixture to chopped corn straws, uniformly stirring the desulfurized corn steep liquor and the chopped corn straws and pressing and fermenting the desulfurized corn steep liquor. According to the method, sulfite in the desulfurized corn steep liquor is converted into inorganic sulfur by the saccharomyces cerevisiae, so that the sulfite content is reduced to below 30 percent; the potential threat of the corn steep liquor serving as a fermented feed nutritious additive to the health of livestock is eliminated; and moreover, the corn straw fermented feed produced by the method is high in nutrition value; the number of required strains is small; the operation is easy; the cost is low; the production period is short; and the feed application range is wide.

The invention discloses an ecological floating bed with enhancement of denitrifying and dephosphorizing functions. The ecological floating bed comprises a plastic frame formed by plastic boards, wherein the plastic frame is provided with air bags for safety; a plurality of stainless-steel frames II are arranged at the lower layer of the inner part of the plastic frame, stainless-steel frames I arearranged above a part of stainless-steel frames II, and aeration devices are arranged above the other part of stainless-steel frames II; floating plants are arranged in the stainless-steel frames I;a plurality of microbial balls are arranged in the stainless-steel frames II; water inlets are arranged at the bottom part of one side of the plastic frame, and water discharging pipes are connected at the other side of the plastic frame by water lifting pumps; the aeration devices and the water lifting pumps are respectively connected with photovoltaic power generation devices. The ecological floating bed disclosed by the invention has the beneficial effects that anaerobic-anoxic-aerobic environments for microbial spheres by the aeration devices and the floating plants, so that the diversityof microbes is improved, the denitrifying and dephosphorizing efficiency is improved and the quality of the discharged water is guaranteed; by assembled installation and up-down splitting arrangementare adopted, the structure is simple; the photovoltaic power generation devices are adopted, so that the cost for use and maintenance at the later period is low.

The invention discloses an intelligent fumigating system. More than two medicament bottles are placed in a thermostat, a bottle body portion of each medicament bottle is closed in the thermostat, an air outlet of each medicament bottle is connected with an air storage tank through a connecting pipe, an air feeding branched pipe is mounted on each air storage tank, a gas electromagnetic valve and a flow sensor are mounted on each air feeding branched pipe, each air storage tank is placed in an electric heating oil tank, and the gas electromagnetic valves and the flow sensors are all connected with a control center. The intelligent fumigating system has the advantages that intelligentizing technology is integrated, so that accurate control on fumigating dose is realized, eliminating and killing effect of quarantine treatment is guaranteed, medicament waste is reduced, labor intensity of operating personnel is reduced; technology of intelligently controlling multiple guns respectively is adopted, so that multiple containers can be handled at the same time, working efficiency is improved manyfold, and cargo demurrage time is reduced greatly; closed tank bodies and leakage alarming design are adopted, so that working environment of workers is improved.

The invention provides a safe fingerprint verification method and a system, and a safe fingerprint verification system is constructed by using an image acquisition unit, a verification characteristic extraction unit, an assisted characteristic extraction unit, a template encryption unit, a template storage unit, a registration parameter computing unit, a template decryption unit and the like. The method and the system provided by the invention take a fuzzy safety box method as a basic framework, adopt the number of ridge lines between the position of a fingerprint detailed point and the adjacent three detailed points thereof as verification characteristics, extract stable reference points from fingerprints and blocking direction fields of the peripheral specific neighborhoods thereof as assisted characteristics, use a method based on the direction field mutual information to evaluate the coincidence degree of the fingerprint registration, and search the optimum parameters by a searching strategy from roughness to refinement, namely, the optimum parameters are the registration parameter for the template fingerprint and the querying fingerprint. The registration parameters are used to convert the querying fingerprint characteristics, and encryption and verification operation are carried out on the template fingerprint by using the converted querying fingerprint verification characteristics.

The invention discloses a drainage inspection well. The drainage inspection well includes a well chamber and an overhaul operation space, the overhaul operation space is formed beside the well chamberand communicated with the well chamber through overhaul holes formed in the wall of the well chamber, and the well chamber and the overhaul operation space are both completely positioned at portionsin a certain distance from the ground. According to the drainage inspection well, the inspection operation space of the inspection well is transferred to a place under the ground now, correspondinglythe ground no longer serves as the working surface for overhaul maintenance work, and staff enter the inspection well for unclogging and maintenance work through an underground space such as a comprehensive pipe corridor. Therefore, not only is the influence of ground operation on society avoided, but also the structure of the whole inspection well is changed, a well lid of the inspection well isremoved, a potential threat to safe traveling of people is eliminated, promotion of the city image is facilitated, and great social benefits can be obtained.

The invention discloses a method for preventing and treating walnut virus diseases, belonging to the technical field of agriculture. The method for preventing and treating walnut virus diseases comprises the following steps: irrigating a biological agent in a fruit tree germination period; spraying a disease-resistant agent and an imidacloprid buprofezin suspending agent with a concentration of 18% in a rapid growth period of walnut fruit to kill insects; spraying a mixed pesticide solution in a walnut kernel hardening period, and conducting prevention and treatment on walnut rot diseases; and irrigating a biological agent and spraying a macleaya cordata extract-veratrine aqueous solution with a concentration of 1% again in a walnut kernel filling period, and performing conventional field management in the period. According to the method, occurrence of walnut virus diseases is effectively controlled, the purposes of enhancing tree vigor and improving the yield and quality of walnuts are achieved, potential threats of the walnut virus diseases to the walnut industry are eliminated, and sustainable development of the walnut industry is ensured.

The invention discloses straw biological-organic silicon-potassium ferment bacterial manure and a preparation method thereof. The bacterial manure comprises 60%-80% of straw, 9.89%-19.78% of activated sludge, 10%-20% of beer diatomite clay, 0.1%-0.2% of leavening agent and 0.01%-0.02% of silicate bacteria. The preparation method sequentially includes the following steps: preparation of the materials; heaping and control over C / N; addition of the leavening agent and stirring; capping, heap turning and primary fermentation; addition of the silicate bacteria and after-ripening fermentation. According to the bacterial manure and the preparation method thereof, waste is recycled, the virtuous cycle of natural resources is promoted, and benefits are brought to the nation and people. With silicon as the core, the biological active bacteria are used for treating the straw, the process is simple, the straw returning-to-field production cost is low, the prepared manure can effectively increase and stabilize the yield of crops, and the effect of making the straw profitable is achieved. In addition, the prepared manure can restrain plant roots from absorbing heavy metal, reduce pollution to water and soil, make silicon and potassium in the straw return to the field safely without causing pollution and achieve the effect of recycling the waste without polluting the environment.

The invention discloses a method for preventing and treating walnut virus disease, belonging to the technical field of agriculture. The methods for preventing and treating walnut virus disease include: irrigation and application of biological agents during the germination period of fruit trees, spraying of disease-resistant agents and 18% pyridoxine-buprofezin suspension to kill insects during the rapid growth period of walnut fruits, and spraying mixed pesticides during the hardening period of walnut fruit stones. Prepare the solution and prevent and control the walnut rot disease. During the filling period of the walnut kernels, the biological bacteria agent is applied again and 1% Boluohui extract · veratridine water agent is sprayed. During this period, the conventional field management is carried out. The control method of the invention effectively controls the occurrence of the walnut virus disease, achieves the purpose of enhancing the tree vigor and improving the walnut yield and quality, eliminates the potential threat of the walnut virus disease to the walnut industry, and ensures the sustainable development of the walnut industry.

The invention provides an anti-static panel. The anti-static panel comprises a panel body; a conductive band is arranged on the panel body; a lug boss and a groove are arranged on the upper and lower ends of the panel body, respectively; the lug boss and the groove are engaged with each other; the conductive band is connected with the lug boss and the groove and covers the lug boss. The anti-static panel has the beneficial effects that the accumulation of static electricity on the internal and external surfaces of a car can be effectively prevented, the harm of the static electricity to the human body is prevented, and the potential menace to car electronic devices and safety of going out is eliminated; the anti-static panel has the advantages of simple structure, low processing cost, high production efficiency and the like.

The invention discloses a saccharomyces cerevisiae fermented high-protein corn straw feed and a preparation method thereof. The feed is obtained by performing desulfurization treatment on corn steep liquor by saccharomyces cerevisiae, dissolving a proper proportion of desulfurized corn steep liquor into water, uniformly spraying the mixture to chopped corn straws, uniformly stirring the desulfurized corn steep liquor and the chopped corn straws and pressing and fermenting the desulfurized corn steep liquor. According to the method, sulfite in the desulfurized corn steep liquor is converted into inorganic sulfur by the saccharomyces cerevisiae, so that the sulfite content is reduced to below 30 percent; the potential threat of the corn steep liquor serving as a fermented feed nutritious additive to the health of livestock is eliminated; and moreover, the corn straw fermented feed produced by the method is high in nutrition value; the number of required strains is small; the operation is easy; the cost is low; the production period is short; and the feed application range is wide.

The invention discloses a biological control method for garden plant diseases and insect pests in a cold temperate zone, and belongs to the technical field of agriculture. The pest and disease damage biological control method comprises the following steps: irrigating a biological agent in a tree body germination period; pest control: pest control is carried out by combining pest physical control and pest biological control; disease prevention and control: performing disease prevention and control by using a disease biological prevention and control means; wherein the biological agent is prepared from the following components: bacillus thuringiensis, a stevia rebaudiana extracting solution and a salicornia europaea extract. According to the method, the biological agent is adopted to irrigate roots, and measures such as pest physical control, pest biological control and disease biological control are combined, so that the morbidity of plant diseases and insect pests is effectively reduced, potential threats of the diseases and insect pests to the garden industry are eliminated, and sustainable development of the garden industry is ensured.

The invention discloses a yeast living cell facial mask, which comprises flocculated living cells of Saccharomyces cerevisiae. In particular, the flocculated S. cerevisiae comprises one or more of Saccharomyces cerevisiae SPSC01, Saccharomyces cerevisiae 6525Flo1 and Saccharomyces cerevisiae 4126Flo1. The invention also discloses the preparation method and application method of the facial mask. The surface of flocculated Saccharomyces cerevisiae cells is fluffy and porous, with a large specific surface area; it is rich in reducing groups such as hydroxyl and aldehyde groups, which can restore high-valent heavy metal ions on the skin surface; it is rich in protein, vitamins, amino acids and organic acids; and the main functional components of SKII Compared with pitera, living cells can continuously and efficiently produce reducing power, which helps to slow down the aging of skin cells.

The invention relates to a method for patrolling a sample line and a responsibility region by using GIS grids. The method comprises the following steps of: 1) generating a GIS map of a monitoring region, and dividing the monitoring region by using grids to generate different GIS grids; 2) dividing the grids into a plurality of responsibility regions, and establishing sample lines among plant communities by taking the plant communities as units; 3) customizing a standard patrol route based on GIS grids in each responsibility region, and patrolling according to the standard patrol route or a sample line by patrol personnel; 4) acquiring an actual patrol route of the patrol personnel, comparing the actual patrol route with a corresponding standard patrol route or the sample lines, and removing the overlapped line segments to obtain a non-patrolled route segment of the patrol personnel; and 5) analyzing whether the non-patrolled route segment belongs to a landform which cannot be patrolledor not by combining a GIS map, if so, adopting an unmanned aerial vehicle for patrolling, and if not, counting the non-patrolled route segment into performance evaluation of the patrol personnel, sothat the problem that the information transmission distance is limited in a traditional mode can be effectively solved, and the performance evaluation of the patrol personnel can be realized, therebyimproving the patrolling quality.

The embodiment of the invention provides a power control method and device of a charging pile group. The power control method of the charging pile group includes the steps of detecting whether targeted charging piles need to be started or not in real time through a server, if yes, counting the current total output power of the charging pile group, controlling the output power of the charging piles currently in the operating state in the charging pile group according to statistical results, and starting the targeted charging piles which need to be started. The power control method of the charging pile group can effectively guarantee that all charging piles in the charging pile group can work simultaneously, safely and stably, and accordingly charging accidents or major safety accidents are avoided.

A preparation method for a function feed additive capable of resisting bird flu comprises connecting parts of sections of artificially synthesized H5N1 bird flu virus hemagglutinin genes with eukaryotic expression vector protein bound idodine (pBI)-221 to obtain recombinant plasmid; converting the obtained recombinant plasmid in dunaliella through methods of particle guns, electric transform and the like to enable hemagglutinin to be expressed in the dunaliella; preparing to achieve engineering alga for expressing virus protein subunit; performing open expansion culture on the prepared engineering alga to collect alga bodies, and then obtaining the function feed additive capable of resisting bird flu through technological processes of low temperature drying, granulation and the like. The function feed additive prepared in the method is applied to poultry cultivation industries, has an immune protection function of resisting bird flu, can improve immune and growth speed poultry, has no side effects and is good in biological safety.

The invention relates to a method for obtaining human vein endothelial cells from human umbilical cord veins. The method comprises separation of the human vein endothelial cells and in vitro amplification of the human vein endothelial cells, and the separation of the human vein endothelial cells comprises: immobilizing umbilical vein outer cells with alcohol, digesting umbilical vein endothelial cells with collagenase, and collecting many pure umbilical vein endothelial cells; and platelet lysate free of animal source and serum components is used in the in vitro amplification process of the human vein endothelial cells , so potential threat of animalic nonhomology components and serum to the cell application in the cell culture process is avoided. The human vein endothelial cells obtained through using the method can be used for researching newborn blood vessel mechanism and screening antitumor newborn blood vessel medicines.

The invention belongs to the technical field of information security, and discloses a single sign-on (SSO) authentication system and method based on inadvertent pseudo-random function (OPRF) and signcryption, including system initialization parameter stage, user / service provider (SP) registration stage, information retrieval stage and user and SP two-way authentication stage. The invention combines the OPRF and the signcryption scheme, that is, the user's password is blinded by the OPRF to obtain the OPRF value, which is used to encrypt the user's signcryption private key, and the ciphertext is stored at the storage provider side. Before logging in, the user restores the OPRF value and decrypts the retrieved ciphertext to obtain the signcrypted private key, which realizes two-way authentication with the SP. The invention provides a security enhancement function against the threat of password leakage, the SP does not store the password or the password derivative value, the client accidentally leaks the password, and the adversary cannot pretend to be the SP to deceive the user. The invention can resist common attacks in the SSO authentication system and efficiently complete the two-way authentication.

The invention relates to a method for obtaining human vein endothelial cells from human umbilical cord veins. The method comprises separation of the human vein endothelial cells and in vitro amplification of the human vein endothelial cells, and the separation of the human vein endothelial cells comprises: immobilizing umbilical vein outer cells with alcohol, digesting umbilical vein endothelial cells with collagenase, and collecting many pure umbilical vein endothelial cells; and platelet lysate free of animal source and serum components is used in the in vitro amplification process of the human vein endothelial cells , so potential threat of animalic nonhomology components and serum to the cell application in the cell culture process is avoided. The human vein endothelial cells obtained through using the method can be used for researching newborn blood vessel mechanism and screening antitumor newborn blood vessel medicines.

The invention relates to an underground particle collecting device based on ultrasonic standing waves. The underground particle collecting device comprises a central controller, a terminal server, a detection device and moving devices, wherein the central controller is connected with the terminal server; and the detection device comprises an environment collection and analysis module and a safetymonitoring and analysis module. The underground particle collecting device has the beneficial effects that a certain guide rail is paved in a well passage; a plurality of moving devices are arranged on the guide rail; a sound wave motor is movably connected inside each moving device; the sound wave motor emits standing waves through a sound wave emitter; the standing waves realize good maneuverability on tiny particles, so that suspended particles generate migration movement; the dust removal is more thorough; the directivity is realized; a wave source generator is arranged in a roadway; the particles are concentrated in the wave loop position through the wave vibration; a central air conditioner is installed for exhausting air to form a pipeline standing wave air exhaust system; the defects of the existing roadway dust removal technology are overcome; the potential safety hazards are eliminated; the movable moving devices realize cyclic patrol; and the investigation coverage range islarge.