50results about How to "Taking care of protection" patented technology

The invention discloses a lake mandarin fish scale culturing method, comprising feeding efficiency, defecation rate, excretion rate, standard metabolism, SDA, activity metabolism and fish physical ability value and growth sub-model. The growing conditions and the bait consumption rate of the piscivorous fish after stocking can be predicted by the model; water body is taken as the research site, the time and space distribution characteristics, the biomass, the structure of the main population, the population growth trends of the growth period, the bait base and tropic niche width and competition overlapping of the advantageous small-sized fish in the shallow water reeds lakes are systematically researched, thus establishing the quantitatively acquiring method of the small-sized fish in theshallow water reeds lakes, completing the productivity analysis and measurement of the advantageous population of the small-sized fish in the shallow water reeds lakes, and estimating the sustainableproduction capacity of the lake bait fish.

The invention discloses a variable-thickness-gradient negative poisson ratio automobile buffering and energy-absorbing structure and an optimization method thereof. The automobile buffering and energy-absorbing structure is formed by a variable-thickness-gradient negative poisson ratio structure, and the negative poisson ratio structure is formed by three-dimensional inwardly-sunken hexagon unit-cells in an array mode; in the longitudinal direction of an automobile, and three layers of unit-cells are distributed, the thickness gradients among the layers are different; and the variable-thickness-gradient negative poisson ratio automobile buffering and energy-absorbing structure is located between a bumper outer skin and a bumper cross beam, and mounted on the automobile bumper cross beam through mounting clamping holes, and mainly when the automobile is collided, the variable-thickness-gradient negative poisson ratio automobile buffering and energy-absorbing structure plays the role of energy absorbing and buffering. The invention further discloses a design method of the automobile buffering and energy-absorbing structure of the variable-thickness-gradient negative poisson ratio structure, the variable-thickness-gradient distribution character of the negative poisson ratio structure can be designed according to design objectives and requirements through a multi-subject and multi-objective cooperative optimization method, and the positive effects on protection to legs of goers outside the automobile and the crashworthiness of an automobile body are achieved.

The invention discloses a thermal power pollution factor control method of air fine particles. The method includes the steps that data related to production of thermal power plants are obtained from the power production department, meteorological and PM2.5 monitoring data are obtained from the environment protection bureau, influences of pollutants emitted by one single thermal power plant on PM2.5 are calculated quantitatively, and an analysis model of the influences of one single thermal power plant on surrounding environment pollution is built; model superposition is carried out on the single thermal power plants to form thermal power generation emission PM2.5 quantitative analysis model around a city, and thermal power PM2.5 pollution around important cities even larger geographic areas is analyzed quantitatively; prediction and quantitative calculation are carried out on pollution emission by means of power generation amount of the thermal power plants, the production process and environment parameters to obtain quantitative priority of thermal power plant government. By means of the method, the influences of the pollutants emitted by thermal power enterprises around the city on PM2.5 are quantitatively analyzed, prediction of a week level and a month level of the PM2.5 value in the important city area is carried out, bases are provided for the government to make policies, and environment protection is achieved while production is guaranteed.

The invention discloses a drilling liner cementing method for controlling the annulus equivalent density of a pressure-sensitive stratum. Based on the minimum equivalent density for keeping shaft stability and the maximum equivalent density for avoiding formation leakage, the density of a drilling fluid is decreased before cementing, accordingly, the leakage risk is reduced, and the cement slurrydisplacement efficiency is improved; and after finishing drilling, on the basis of hydraulic parameters and leakage and the oil-gas-water display situation in the drilling process, the annulus pressure is calculated, and the minimum equivalent density phimin for keeping the shaft stability and the maximum equivalent density phimax for avoiding formation leakage are determined. Cementing construction designing is conducted based on phimin and phimax, and for the purpose that the annulus cement slurry displacement efficiency is larger than 90%, the pressure stabilizing and leakage preventing effects are achieved by decreasing the density of the drilling fluid, applying back pressure to a wellhead and reasonably designing injection displacement.

The invention provides a compression-joint type IGBT packaging structure with heat tubes. The compression-joint type IGBT packaging structure is composed of an outer shell and a plurality of sub-unit structures located inside the outer shell, and the multiple sub-unit structures are arranged in parallel. Each sub-unit structure comprises an upper end cover, conductive copper sheets, a disc spring set, the heat tube, a base, a silver sheet, a molybdenum sheet, a chip and a lower end cover, wherein the lower end cover, the chip, the molybdenum sheet, the silver sheet and the base are sequentially arranged from bottom to top, the upper end of the heat tube is inserted into the upper end cover and penetrates through the disc spring set, the lower end of the heat tube is inserted into the base, the upper ends of the conductive copper sheets are located between the upper end cover and the disc spring set, and the lower ends of the conductive copper sheets are located between the disc spring set and the base. By means of the compression-joint type IGBT packaging structure, the chips can be effectively protected; meanwhile, as the heat tubes are used, two-sided radiating is achieved in function, and the overall heat resistance is small; as the heat tubes are introduced, although single-face hard contact is generated, a radiating path is good, and consideration is given to chip protection and the small heat resistance. The overall structure has the advantages that short circuit efficacy losing of a compression-joint type IGBT is achieved, and reliability is high.

The invention provides a water conservation fishery method capable of improving water quality of lakes and reservoirs intermediately and lightly eutrophicated. The method is characterized by comprising the following steps of: (1) selecting lakes or reservoirs heavily, intermediately or lightly eutrophicated; (2) selecting the whole lakes with an unifrom eutrophicated level or main polluted areas of the lakes to release chubs and fat head fishes in large quantity, wherein the area for cultivating the chubs and the fat head fishes is more than two thirds of the pollution area; (3) releasing thechubs and the fat head fishes, which are one year or two year old, at the same time, controlling the total density of the chubs and the fat head fishes between 5 and 100g/m<3> according to the eutrophicated level of the water body, and controlling the total weight ratio of the chubs to the fat head fishes to be between 1:4 and 4:1 according to water conditions; and (4) when the chubs and the fat head fishes are released, controlling the quantity of predacious fishes to be below 0.05g/m<3>, and simultaneously releasing or additionally cultivating fishes which eat organic debris and of which thereleasing quantity is controlled between 0.5 and 20g/m<3>.

The invention relates to an improvement of code equipment and a data synchronizing method and system after improvement. The improvement method of the code equipment comprises: separating a management function and an operating function. By adopting the method and system, protection of data is taken in account while performance is improved, so as to ensure that the sensitive data does not enter a host memory. According to the technical scheme, the function of a data distribution center is realized by using the flexible resource of a FPGA (field programmable gate array).

The invention relates to a control method of an air conditioner. The control method of the air conditioner comprises the steps of controlling a compressor to start; judging whether a refrigerating fluid has a primary leakage risk or not; if yes, acquiring current indoor temperature and setting temperature; judging whether a difference value of the current indoor temperature and the setting temperature is smaller than a first preset value or not; and if yes, controlling the compressor to run. According to the air conditioner provided by the embodiment of the invention, aiming at refrigerating fluid leakage, both the use by a user and the protection of the compressor are considered.

The present invention relates to a method for separating and purifying natural product by using three-phase counter-current chromatography. Sad method is characterized by that in the immobile phase of conventional counter-current chromatography a solid separation medium-microsphere can be added so as to form a three-phase separation system including liquid immobile phase, solid immobile phase and liquid mobile phase, so that the counter-current chromatography and column chromatography can be combined into one body, therefore the separation and purification efficiency of natural product can be greatly raised.

The invention discloses a breeding method for purifying lake and reservoir water quality by means of fishes, shrimps, clams and grass. According to the method, a lake and reservoir water quality purification ecological breeding region is established, and a three-dimensional breeding mode is formed by fully utilizing the fishes, shrimps, clams and grass at the upper layer, the middle layer, the lower layer and the bottom layer of the breeding region. The lake and reservoir water quality purification ecological breeding region is arranged at a lake and reservoir outlet, eutrophic lake water, obtained after aquaculture, of other regions of the lake and reservoir can flow to the lake and reservoir water quality purification ecological breeding region conveniently, and the lake and reservoir water quality purification ecological breeding region serves as the main feed source and plays the role of purifying the water quality. According to the method, only one feed is used, the use ratio of the feed is high, discharge of nitrogen, phosphorus and the like is low, and water environment protection is promoted. In addition, excreta of the fishes, shrimps and clams who take food is used for growth of hydrilla verticillata which provides natural fish nests for parents of yellow catfishes, freshwater shrimps and corbicula fluminea, and the natural fish nests are used for adhesion and incubation of zygotes of the fishes, shrimps and clams; meanwhile, hydrilla verticillata plays the role of improving the bottom environment of the breeding region, cyclic utilization of the fishes, shrimps, clams and grass in the lake and reservoir water quality purification ecological breeding region is formed, fishery development is achieved, and water environment protection is considered simultaneously.

The invention relates to a controllable two-stage flap extending system carried by blades of a wind driven generator. The system can achieve two-stage flap extending and comprises extending flaps, a fixing frame, a motor module, a driving frame, a protective frame, a fixing frame fixing device, a transverse fixing frame, a power supply and conversion module, a control unit, a strip electromagnet,a push frame, an output box and a motor fixing frame. A wind speed signal is detected through a sensor, and when the wind speed is larger than the minimum set value, the control unit drives a motor and a driving rod to push out the first-stage flap through an output box. When the detected wind speed signal is larger than the maximum set value, the control unit continues to increase the current topush the second-stage flap to extend, the length of the flaps is further increased, the wind resistance to the blades is increased, the load for vibrating the blades is reduced, and a protection effect on the blades is achieved. The protective frame is arranged to protect the driving rod, an optimal PID algorithm is selected for the control strategy, and the control unit and the power supply and conversion module are arranged on the transverse fixing frame.

The invention belongs to the technical field of pollution treatment for cultivated lands and particularly relates to a rice cadmium-lowering conditioner and a rice cadmium lowering method. The rice cadmium-lowering conditioner is made with one or any of mushroom residue, plant ash, peat and shell powder; the cadmium content of rice can be lowered effectively by applying 100-150 kg of the rice cadmium-lowering conditioner, per mu, to the rice soil under medium or light cadmium pollution. The agricultural solid waste is used in the method herein mainly to make the rice cadmium-lowering conditioner. According to the method herein, the cadmium content of rice cultivated in the rice soil under medium and light cadmium pollution is decreased by 20-55% in comparisons. The rice cadmium-lowering conditioner and the method herein have the advantages that, for instance, the materials are easy to attain, the reserves of materials are high, the cost is low, the method is simple, the conditioner andthe method are friendly to the environment, the cadmium-lowering effect is significant; the agricultural solid waste is recycled, with food safety and environmental protection balanced.

The invention discloses a deep treatment method for the wastewater from the technique for producing long-chain dibasic acids by fermentation method. In the method, acid is used for adjusting the pH value of the wastewater to be discharged; after sedimentation, supernatant fluid is added with proper amount of oxidizing agent, precipitate is separated from the solution once more, oxidizing agent is added again in the supernatant fluid obtained by separation for deep chemical oxidation until the COD of the treated water solution meets the requirements. Then alkali is used for neutralizing the water solution to neutrality and after iron sludge is separated out, the water can be discharged into a second-grade pipe network. The method can recycle about 80% of organic dibasic acid by controlling the adding amount of the oxidizing agent, and has short wastewater treatment time, low dosage of the oxidizing agent and little emission amount of CO2 waste gas. The recycled dibasic acid can be used for preparing fine chemical products such as cold resistant plasticizer, high class lubricating oil, high temperature dielectric medium, high-grade hot-melt adhesives, high-grade paint, and the like; and the iron sludge produced can be used for producing iron series pigments.

A method for desalting of an aqueous solution containing high-concentration sodium nitrate and/or potassium nitrate comprises the steps of 1, adding a calcic reagent and a phosphorus reagent to the aqueous solution to be treated containing sodium nitrate and/or potassium nitrate and controlling the pH value of the aqueous solution to be treated to be 6-8.5 in an alternate or simultaneous mode at the temperature of 0-35 DEG C, so that mixed liquid is obtained, wherein the concentration of sodium nitrate and/or potassium nitrate is high but lower than the saturated solubility thereof; 2, conducting still standing of the mixed liquid till precipitation, and separating sediment containing nitrate, so that desalting is achieved. The method has the advantages that equipment is simple, investment is low, adopted materials are economical and easy to obtain, operation is easy, and no harmful element is introduced to the system; separated sediment is a valuable mineral substance too and can be recycled, and economy and environment protection are both realized; the technology can be widely applied to treatment of wastewater which contains high-concentration sodium nitrate and/or potassium nitrate and is discharged from fine chemical engineering, biochemical engineering, papermaking, tanning and other fields.

The invention discloses a thoracoabdominal cavity small incision suture assist device. The device comprises a traction unit, a connecting rod and an operation unit, wherein the connecting rod comprises a connecting rod first end and a connecting rod second end which are located in the extending direction of the connecting rod; the traction unit is of a hard structure arranged at the connecting rodfirst end; the operation unit is arranged at the connecting rod second end; the traction unit is movably connected with the connecting rod; the traction unit moves relative to the connecting rod to enable the traction unit to have at least two switchable locking states; the operation unit is connected with the traction unit to control the traction unit to be switched and locked between the two locking states; in the first locking state, the traction unit extends out two traction ends towards the peripheral side of the connecting rod, and the traction ends are arranged towards the operation unit; and in the second locking state, the traction unit is integrally distributed in the axial direction of the connecting rod, and the overall size is smaller than or equal to the circumferential sizeof the connecting rod. The thoracoabdominal cavity small incision suture assist device is convenient to operate and beneficial to precise suture.

Provided is an ion exchange membrane electrolytic cell, whereby it becomes possible to achieve both the protection of an ion exchange membrane and the development of the electrolytic performance of the electrolytic cell. An ion exchange membrane electrolytic cell partitioned with an ion exchange membrane into an anode chamber in which an anode is housed and a cathode chamber in which a hydrogen-generating cathode is housed, wherein a metallic elastic body (15) or an elastic cushioning material produced by winding a metallic elastic body around a corrosion-resistant frame is arranged between the hydrogen-generating cathode (14) and a cathode current collector (13) and/or between the anode and an anode current collector, and wherein at least two types of metallic elastic bodies are used as the metallic elastic body (15).

The invention discloses an aluminum alloy corrugated plate-ECC plate combined anti-collision guardrail which comprises an aluminum alloy corrugated plate, an ECC energy consumption plate, an L-shaped aluminum alloy support, aluminum alloy-concrete combined stand columns, connecting bolts, connecting screws and an embedded bearing platform. The lower ends of the aluminum alloy-concrete combined stand columns are connected with the embedded bearing platform through the connecting bolts. The upper ends of the aluminum alloy-concrete combined stand columns are connected with the ECC energy consumption plate through the L-shaped aluminum alloy support and the connecting bolts. According to the aluminum alloy corrugated plate-ECC plate combined anti-collision guardrail, first-stage impact energy consumption is carried out through the aluminum alloy corrugated plate; and the anti-impact rigidity of the aluminum alloy corrugated plate is improved through the ECC energy consumption plate, and meanwhile the impact energy is further dissipated through the ECC energy consumption plate. The mechanical properties of the aluminum alloy and the ECC concrete are reasonably utilized, and the concrete has the advantages of being high in durability, good in environmental protection performance, excellent in impact resistance, high in energy dissipation capacity, low in price, low in maintenance cost, capable of achieving rapid construction and replacement and the like.

The invention discloses a fixed type floating body underwater house system and a distribution combination method thereof. The fixed type floating body underwater house system comprises a lake and an underwater house placed into the lake and floating on the lake; the underwater house comprises a floating body platform which floats on the water surface, an underwater house, and amusement islands, entertainment regions, bridges, a water supply and drainage system, an air conduit , a heavy-current and light-current control system, a water tank, underwater landscapes in the lake and any one or the combination of fishes, recreational facilities or ornamental objects. The distribution combination method mode is one or combination of terrace form distribution, planar distribution and flowing distribution. The fixed type floating body underwater house system is low in arrangement and production cost, is warm in winter and cool in summer, high in living comfortableness, and suitable for comfortable living for people, and the earth resources can be completely used, and a new experience can be provided for people. Simultaneously, the environment is effectively integrated; comfortable living is compatible with the environment protection; and the underwater house system is a substantial progress for improving the human living environment.

The invention provides an oral mucosa protection paste and a manufacturing equipment thereof. The oral mucosa protection paste comprises a hydrophobic agent, a neutralizing agent, a humectant, a thickening agent, an auxiliary agent and a flavoring agent, the hydrophobic agent is constructed to isolate saliva in the oral cavity, and the neutralizing agent agent is constructed to nurse mucosa; the moisturizer moisturizes the paste; the thickening agent is used for mixing the hydrophobic agent, the neutralizing agent, the humectant, the auxiliary agent and the flavoring agent; the flavouring agent is constructed to flavour the paste. According to the invention , a hydrophobic agent without alkaloid and substances with strong irritation is adopted, which will not bring damage and irritation tooral mucosa, has high safety in long-term use, maximally protects oral mucosa from oral submucosal fibrosis defects caused by massive deposition of extracellular matrixes such as fibroblast proliferation and collagen. The oral mucosa protection paste does not contain chromatin with relatively strong activity, so that the oral mucosa protection paste will not pollute the dental surface due to long-term use.