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 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 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 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.