85results about How to "Reduce technical effect" patented technology

A method for transmitting channel quality instruction, a device and a system thereof are disclosed. The method comprises the following steps: a carrier wave subset needing feedback of CQI information is confirmed; the carrier wave subset is composed of at least one carrier wave in a multiple carrier wave system; a terminal adopts at least one carrier wave to feedback the confirmed CQI information in the carrier wave subset. Furthermore, the carrier waves in the carrier wave subset can feedback the CQI information within a preset time period. The embodiment of the invention can achieve the technical effects that the terminal sends the channel quality instruction to a base station and saves CQI feedback information in the multiple carrier wave system.

The invention relates to a synthetic method for polyoxymethylene dimethyl ether, and mainly overcomes the problem of relatively high cost in a conventional method for synthesizing polyoxymethylene dimethyl ether by using trioxymethylene as a raw material. The synthetic method takes use of methanol, methylal and paraformaldehyde as raw materials, wherein a mass ratio of methanol to methylal to paraformaldehyde is 0-10 : 0-10 : 1; and the usage amount of methanol and methylal is not zero at the same time; and the raw materials are contacted with a catalyst under a reaction pressure of 0.2-6 MPa to produce polyoxymethylene dimethyl ether (CH3O(CH2O)nCH3), wherein the used catalyst is selected from activated carbon. By adopting the above technical solution, the problem is overcome relatively well; and the synthetic method can be used for industrial production of polyoxymethylene dimethyl ether.

The invention relates to the technical field of mechanical transmission, in particular to a multistage speed changing device. The multistage speed changing device comprises a power input shaft, a middle transmission body and a power output shaft, wherein a driving stepped gear is arranged on the power input shaft, a driven stepped gear matched with the driving stepped gear is arranged on the power output shaft, and one driving gear in the driving stepped gear is in meshing transmission with one corresponding driven gear in the driven stepped gear through the middle transmission body. The middle transmission body comprises a transmission shaft capable of radially moving, wherein a transmission gear is fixedly connected onto the transmission shaft, and the axes of the power input shaft, the transmission shaft and the power output shaft are parallel. The multistage speed changing device is simple in structure, stable in transmission and convenient to control.

The invention relates to a composite type soft sealing method which mainly solves the problem that the sealing effect is poor in the prior art. According to the composite type soft sealing method, a composite type soft sealing device is adopted to seal the space between a floating pan and a tank wall of a storage tank and comprises an elastic foam filling rubber bag, a liquid filling rubber bag, elastic foam and a fixing pressure board, the elastic foam filling rubber bag is arranged in the space between the tank wall and the floating pan of the storage tank, the face, making contact with the tank wall, of the elastic foam filling rubber bag is a zigzag surface, and the elastic foam filling rubber bag is filled with the liquid filling rubber bag and the elastic foam. The technical scheme that the space between the liquid filling rubber bag and the tank wall of the storage tank is at least filled with the elastic foam well solves the problem that the sealing effect is poor in the prior art, and the composite type soft sealing method can be used for sealing of floating roof storage tanks.

The invention provides a building drainage collection system. The building drainage collection system comprises a drainage pipe assembly, a transverse pipe drainage assembly communicating with the drainage pipe assembly, and a water seal assembly communicating with the transverse pipe drainage assembly, wherein the interior of the transverse pipe drainage assembly is of a flat cavity structure, and the bottom surface of a cavity of the transverse pipe drainage assembly is obliquely arranged. According to the building drainage collection system, the flat transverse pipe drainage assembly is adopted to be connected with the drainage pipe assembly and the water seal assembly, so that the occupied space is small, and the technical effect of sewage and wastewater drainage can be achieved without lowering a floor slab layer.

The invention provides a toilet drainage collection system. The toilet drainage collection system comprises a drainage pipe assembly, a transverse pipe drainage assembly communicating with the drainage pipe assembly and a water seal assembly communicating with the transverse pipe drainage assembly, wherein the drainage pipe assembly comprises a first water inlet pipe, a second water inlet pipe, afirst vertical pipe and a second vertical pipe, the first water inlet pipe and the second water inlet pipe are connected, the interior of the first water inlet pipe communicates with the interior of the second water inlet pipe, the inner edge of the second water inlet pipe is tangent to the inner edge of the first water inlet pipe, the first water inlet pipe is connected with the first vertical pipe, the interior of the first water inlet pipe communicates with the interior of the first vertical pipe, and a pipe wall cavity with an expanded volume is arranged at the communication part between the second water inlet pipe and the first water inlet pipe. According to the toilet drainage collection system, due to the fact that the pipe wall cavity with the expanded volume is arranged in the drainage pipe assembly, the curvature radius of wall-attached rotational flow of sewage of the drainage pipe assembly is increased, and it is guaranteed that the wall-attached rotational flow of the sewage can be achieved.

The invention relates to a magnet force device, particularly to a magnet differential type electric permanent magnet device. The device is free from yoke, the magnetic resistance is very small and the magnetic attraction force is very big. Compared with the prior art, the yoke-free structure can generate the remarkable beneficial technical effect, thus the magnet in the same size can relatively generate bigger magnetic attraction force; and the self-gravity is little and the price is low. The device can be applied to the industries such as an electromagnet, a relay, a contactor and a hoisting magnet. The device makes the magnetism of the magnetic pole of an aluminum nickel cobalt magnet 4 change to keep the step of that of the magnetic pole of adjacent neodymium iron boron magnet 3 by charging in positive and reverse directions according to the requirement, thus the pole shoes 7, 8 have the magnetic attraction force; or the magnetism is different, thus the pole shoes 7, 8 are free from the magnetic attraction force. At the moment of adjusting the polarity of the aluminum nickel cobalt magnet 4, the iron magnet material is attracted or the iron magnet material is not attracted with low power consumption, more than 90% of the power can be saved based on the primary measurement and calculation.

The invention relates to the technical field of converter steelmaking, in particular to a method for controlling converter bottom blowing gun exposing. The method includes the steps that in the converter steel tapping process, the bottom blowing flow of a bottom blowing gun to a converter is controlled to range from 500 m<3>/h to 600 m<3>/h; slag splashing protection operation is carried out on the converter; and after slag splashing protection operation is finished, the bottom blowing flow of the bottom blowing gun is decreased to 150 m<3>/h to 200 m<3>/h. According to the method, the large bottom blowing flow ranging from 500 m<3>/h to 600 m<3>/h is adopted in the converter steel tapping process; meanwhile, after the slag splashing protection operation is finished, the bottom blowing flow of the bottom blowing gun is decreased to 150 m<3>/h to 200 m<3>/h, and therefore a low-melting-point mushroom head can be formed above the bottom blowing gun, in the converter blowing earlier stage, the low-melting-point mushroom head above the bottom blowing gun can rapidly melt, exposure of the bottom blowing gun is guaranteed, the bottom blowing effect is accordingly improved, and the converter terminal carbon-oxygen equilibrium is reduced.

The invention relates to the technical field of biologic pharmacy, and discloses a method for removing pertussis component pilin 2/3 endotoxin. The method comprises the steps that after bordetella pertussis is fermented and cultured, thalli are centrifugally collected, thalli are extracted through a urea phosphate buffer solution, a supernate is centrifugally collected, and PEG-8000 and ammonium sulfate are used for performing precipitation; precipitates are extracted by the phosphate buffer solution, then, a supernate is centrifugally collected, a Q-Sepharose chromatographic column is adoptedfor processing, and a phosphate buffer solution containing sodium chloride is adopted for eluting the Fim 2/3 component. By combining PEG8000 precipitating, ammonia sulfate precipitating and Q-Sepharose chromatographic column processing are combined, endotoxin in pilin 2/3 is removed through repeated means, on the premise of not introducing allogenic materials, the effective ingredient Fim 2/3 biologic activity and recycling rate are kept, and meanwhile the endotoxin in Fim 2/3 can be removed to 10 EU/mg or lower.

The invention relates to an efficient deinking agent for mixed waste paper, and mainly solves the problems of poor deinking effect and serious environmental pollution in the prior art. The efficient deinking agent for the mixed waste paper comprises the following components in parts by weight: 15-25 parts of polyoxyethylene fatty alcohol sodium sulfate, 15-25 parts of alkylphenol polyoxyethylene, 10-15 parts of Twain-80, 25-30 parts of sodium dodecyl benzene sulfonate, 10-15 parts of attapulgite, 5-10 parts of anhydrous sodium metasilicate, 5-10 parts of ethylenediamine tetraacetic acid. By adopting the technical scheme, the problems are well solved, and the efficient deinking agent can be used for waste paper recycling.

The invention discloses a method and device for identifying the weed type and a method for determining pesticide application information. The method for identifying the weed type comprises the steps of determining peripheral areas of a target area; selecting an area from the peripheral areas according to preset rules to serve as a sub-area; and determining the weed type of the target area according to weed type information in the sub-area. The method solves the technical problems of pesticide waste and low weeding efficiency caused by the inability of identifying the weed type and weed distribution in the process of spraying a pesticide by using automatic pesticide spraying equipment.

The invention relates to a hydrogenated modification method for a petroleum wax substance, which comprises the following steps of: fully mixing the petroleum wax substance serving as a raw material and hydrogen in a gas-liquid mixer through a heating furnace, then making the mixture contact a hydrogenation catalyst in a low hydrogen-wax volume ratio under mild process condition, and performing the conventional hydrogenation reaction. Compared with the conventional hydrogenation process, the method can achieve the same effect as the conventional refining under the mild process condition. The method can produce high-quality paraffin products of various brands, and has the advantages of simple process flow, stable operation, good product property and capabilities of reducing the energy consumption of a device, improving the product yield and newly building a hydrogenation device or reforming an old device.

The invention discloses a limnopernafortunei killing pool device and a killing method. The device comprises a water inlet pool section, attachment-sedimentation killing pool sections, a sedimentation killing pool section and a water supply pool section which are sequentially connected in a penetrating mode. Each attachment-sedimentation killing pool section comprises an upper attachment area and a lower sedimentation area. Each attachment area is a water flow channel and comprises at least one attachment net, the net face of each attachment net is a gauze element which is of a small-diameter single-wire structure, the diameter of each net wire is 0.1-0.5 mm, and the hole diameter of each net hole is 1-10 mm. Each sedimentation area is a water purification environment. Due to limitation of the diameter and the hole diameter of the thin wires, enough attachment area can be provided for limnopernafortunei larvae, however, the bodies of limnopernafortunei adults cannot be supported sufficiently, and the adults can fall off naturally. Hence, the process of killing the limnopernafortunei adults after an attachment row is taken out from a pool is omitted, the killing pool device with the limnopernafortunei attachment-sedimentation killing pool sections can continuously operate without being interrupted, and meanwhile the operating cost of the device is lowered.

The invention discloses self-fermented cereal refined powder which belongs to the technical field of food processing. The self-fermented cereal refined powder comprises the following components in parts by weight: 60-70 parts of basic powder, 10-15 parts of sticky rice powder, 10-15 parts of soybean meal, 1-2 parts of yeast, 1-2 parts of sodium bicarbonate and 1-2 parts of citric acid, wherein the basic powder is extruded corn cooked powder, a mixture of buckwheat meal and extruded corn cooked powder, extruded black rice cooked powder, barley grass powder or purple sweet potato powder. According to the self-fermented cereal refined powder, white wheat meal is added into the self-fermented cereal refined powder to take the place of white self-fermented wheat meal, the reasonability of dietary pattern of people is improved because of the nutrient components of cereal, the hard and dry and tough taste of a conventional cereal product is changed, a user can select the ratio and the varieties of the powder according to demands, moreover the on-way transportation cost is saved as the powder can be purchased at a local place, meanwhile the self-fermented cereal refined powder has the advantages that the use is convenient and the speciality, the technicality and the failure rate in pastry making can be greatly lowered.