41results about How to "To achieve the effect of complementary advantages" patented technology

The invention provides a method for estimating power system reliability. The method comprises the steps of (1) initializing the parameters of the power system, (2) calculating the PL(Xi) of each state of the power system, (3) calculating the W(Xi; u, v<k-1>) of each state of the power system, (4) updating the parameters as shown in the description, (5) determining whether the equation rk=PLtotal is satisfied, (6) calculating the dual sampled system load shedding flag as shown in the description and a shed load amount as shown in the description, (7) calculating W(Xi; u, v*), and calculating LOLP and EDNS as well as coefficients of convergence beta LOLP and beta EDNS, (8) determining whether beta LOLP is smaller than or equal to beta MAX and beta EDNS is smaller than or equal to beta MAX or N2 is greater than or equal to NMAX, and (9) outputting a reliability index. The method for estimating the power system reliability is still efficient and reliable in the reliability estimation of a reliable system having relatively low element failure rate, and therefore, the method is applicable to the reliability estimation of different reliable systems.

The invention discloses composite modified asphalt, which is prepared by mixing modifier and matrix asphalt, wherein the modifier consists of the following components in percentage by mass (based on 100 percent of the matrix asphalt): 1 to 10 percent of inorganic substance filler, 1 to 10 percent of polymer, 0.1 to 5 percent of stabilizer, and 0.1 to 5 percent of coupling agent. The prepared modified asphalt has good high and low temperature resistance and ageing resistance, can prolong the service life of roads and reduce the maintenance expense of pavements, and is suitable to be spread in the engineering of high-grade roads, airfield runways, parking lots, bridges and the like.

The invention discloses a sliver-oxide ternary alloy electrical contact material and a production method thereof. The sliver-oxide ternary alloy electrical contact material comprises, by weight percent, 6%-24% of total ternary alloy oxides, 0.72%-5% of total added element oxides, and the balance of silver. The production method includes smelting the raw materials to obtain ingots by stepwise smelting process or atomizing to produce alloy powder; performing rolling and temperature differential oxidation, or high energy ball milling and temperature differential oxidation; and performing isostatic pressing to obtain primary ingots, subjecting the primary ingots to sintering, hot re-pressing and hot extrusion to obtain wires or strips, and thereby obtaining highly dispersible organizational structure with even and small crystal grains. The obtained material is high in conductivity, low in temperature rise, high in welding resistance, high in arc suppressing and high in electric corrosion resistance, electrical life is prolonged greatly, advantages of comprehensive property are highlighted, and the demands of high-end low-voltage electric appliances are fully met.

The invention relates to a multi-area power system load frequency control method. A power system comprises a plurality of areas interconnected by connecting lines; and each area comprises a conventional generator, a super capacitor, a battery energy storage system and a wind generator. The multi-area power system load frequency control method is characterized by comprising the step of: according to a control interval in which a value of an ACE (Area Control Error) is positioned, enabling output power of a frequency regulating device to be correspondingly regulated, and enabling a system frequency error to be kept in a normal range. Compared with the prior art, according to the multi-area power system load frequency control method disclosed by the invention, different control strategies are adopted according to the control interval of the ACE. The control strategies effectively reduce a system frequency error, improve stability of the power system and reduce cost of power grid construction.

The invention discloses a special polyelement microorganism fertilizer for preventing celery soft rot and a preparation method of the special polyelement microorganism fertilizer. The special polyelement microorganism fertilizer for preventing the celery soft rot comprises components of raw materials in parts by weight as follows: 0.8-1 part of bacillus amyloliquefaciens, 0.6-0.8 part of bacillus thuringiensis, 0.5-0.7 part of bacillus subtilis, 0.4-0.8 part of lactic acid bacteria, 1-3 parts of a matrix leavening agent, 30-35 parts of maize straw, 20-30 parts of turf, Chinese herbal medicinal ingredients and the like. The prepared special polyelement microorganism fertilizer for preventing the celery soft rot can reduce the morbidity of the celery soft rot greatly, a plant can grow more vigorously, the yield of celery is increased greatly, the quality is improved, probiotics in the soil are also increased, the fertilizer is pollution-free and low in residue, and the soil condition is improved greatly.

The invention discloses a sequence labeling method based on a multi-head self-attention mechanism, which comprises the following steps: step 1, local context semantic coding: learning local context semantic representation of words in a text by using BLSTM serialization, step 2, global semantic coding: based on the local context semantic representation of the words coded in the first step, coding global semantic representation of the words through a multi-head self-attention mechanism; step 3, semantic feature fusion: fusing the local context semantic representation encoded in the step 1 and the global semantic representation encoded in the step 2, and taking a fusion result as the input semantic feature of the step 4; step 4, sequence labeling: in order to fully consider the dependency relationship between labels in a sequence labeling task, utilizing CRF to predict the labels; step 5, performing model training; step 6, performing model reasoning. On the basis of the recurrent neural network, a multi-head self-attention mechanism is further introduced to learn global semantic representation of words, and therefore the sequence labeling effect is improved.

The invention belongs to the technical field of building materials, and particularly relates to preparation of magnesium phosphate cement with good hydrolytic resistance and a using method thereof. The magnesium phosphate cement is prepared from calcined magnesia, monopotassium phosphate, retarder, desulphurization gypsum, coal ash, steel slag powder, limestone flour, a water reducing agent and a defoaming agent. The defects that traditional magnesium phosphate cement is insufficient in early strength, low in later strength, poor in water resistance, high in cost and the like can be overcome, and the additional value of the industrial byproducts such as the coal ash, the steel slag powder and the desulphurization gypsum can be improved. The magnesium phosphate cement with good hydrolytic resistance can be used as a rapid repair material, has the excellent properties that preparation technology is simple, fluidity is good, early strength development is fast, later strength is not reduced and permeability and erosion resistance is good, is applicable to rapid repair engineering of bridges, wharfs, municipal engineering and the like, and has good economic benefits and social benefits.

The invention relates to a deodorizing and fertility-increasing organic material decomposition maturing agent and a preparation method and application thereof. The preparation method includes the steps of preparing a compound microbial agent A, preparing a compound microbial agent B and preparing the organic material decomposition maturing agent. The compound microbial agent A comprises medium-temperature strains with a nitrogen fixation function and a macromolecular organic substance decomposition function, and the medium-temperature strains are capable of increasing the temperature of compost materials to higher than 50 DEG C rapidly within 24 hours at 4-8 DEG C, so that the difficulty in temperature rise under external low-temperature conditions is overcome, and a temperature rise period of compost fermentation is shortened greatly. The compound microbial agent B comprises thermophilic strains with a decomposition function, and the thermophilic strains have a good decomposition effect on hemicelluloses in a high-temperature period of compost fermentation. The stains can promote mutually in terms of fermentation time and functions to achieve a synergistic effect, so that decomposition maturing is accelerated, stink substances such as ammonia are reduced and fertilizer efficiency is improved. The deodorizing and fertility-increasing organic material decomposition maturing agent is far superior to common organic material decomposition maturing agents in terms of decomposition maturity, deodorizing effect and fertility increasing performance.

The invention discloses a scalpel for electrosurgery and an electrosurgery system. The scalpel for electrosurgery comprises a scalpel handle and a scalpel head detachably installed on the scalpel handle. Tthe scalpel head comprises an outer conductor, an insulating medium, an inner conductor and a positive electrode, wherein the outer end of the outer conductor is provided with an arc incision, and both ends of the arc incision are respectively upper outer electrode and lower outer electrode; the insulating medium and the inner conductor are successively and fixedly connected inside the outer conductor, the insulating medium is located between the outer conductor and the inner conductor, the inner conductor is used for releasing microwave signals to undergo surgery hemostasis; and the positive electrode is arranged on the outer conductor or the inner conductor and is used for releasing radio frequency signals to undergo surgery tissue incision; and a water duct is arranged on the outer conductor or in the insulating medium and is used for transferring normal saline to undergo tissue separation and/or cooling. The scalpel has the effect of complementing the advantages of three surgical instruments, namely radio frequency electric knife, medical water knife and microwave scalpel.

The invention discloses a concrete admixture based on iron tailing powder and a preparation method of the concrete admixture. The concrete admixture is prepared from the following components specifically in percentage by weight: 59.7% of the iron tailing powder and natural gypsum, 25% of level-I coal powder ashes, 15% of S105 mineral powder, and 0.3% of a liquid functional conditioning agent. Irontailings used are prepared from the following components in percentage by weight: 62.13% of SiO2, 5.12% of CaO, 4.36% of MgO, 10.23% of Fe2O3 and 9.65% of Al2O3. According to the concrete admixture based on the iron tailing powder and the preparation method of the concrete admixture, through certain activating treatment, the pozzolanic activity of the iron tailings is shown, the iron tailings andother mineral admixtures are compounded in proportion to produce a synergistic effect, the different mineral admixtures are made to exert respective advantages, the effect of complementary to each other is reached, the iron tailings can be developed to be the concrete admixture, then the additional value of the iron tailings is improved, and the cost of cement concrete is further lowered.

The invention discloses a straw decomposition agent. An active ingredient of the straw decomposition agent is prepared from actinomycetes, trichoderma harzianum, saccharomyces and bacillus subtilis which are in the bacterial flora formation unit number ratio of (0.5 to 2): (1 to 2): (0.8 to 1.2): 1. According to the straw decomposition agent disclosed by the invention, all bacterial florae can harmoniously coexist and mutually promote so as to achieve the effect of having complementary advantages, and lignin, cellulose, hemicellulose and the like in crop straws can be effectively decomposed; the degradation time is short, the decomposition effect is stable, diseases and insect pests are eliminated effectively, and the straw decomposition agent has a decomposition effect at normal temperatures, so that the rapid treatment of organic materials and final resource-converting utilization are achieved; treated organic solid wastes are transformed thoroughly, embody good properties of improving soil, promoting growth and inhibiting soil-borne diseases and meanwhile are environmentally friendly and sanitary.

The invention discloses a special compound microorganism fertilizer for preventing cymbidium anthracnose and a preparation method of the special compound microorganism fertilizer. The special compound microorganism fertilizer for preventing the cymbidium anthracnose comprises components in parts by weight as follows: 1-3 parts of bacillus megatherium, 3-5 parts of streptomyces jingyangensis, 6-10 parts of a microorganism polyelement bacteriostatic agent, 1000-1100 parts of an organic fertilizer, 350-500 parts of an inorganic fertilizer, 30-40 parts of a micro element fertilizer, 22-28 parts of an adhesion agent and 0.2-0.6 part of a stabilizing auxiliary. The prepared special compound microorganism fertilizer can reduce the morbidity of the cymbidium anthracnose greatly, and increase the quantity of probiotics in the soil; and the blooming duration time is longer, the blossom quantity is larger, and the blossom is larger and looks brighter when observed with the naked eyes.

The invention relates to plastic alloy and a method for preparing the same, and belongs to the technical field of high-polymer materials. The plastic alloy comprises, by weight, 1-90 parts of polycarbonate, 1-90 parts of siloxane copolymerization polycarbonate, 1-90 parts of polyethylene terephthalate, 0.01-3 parts of nucleating agents, 0-10 parts of toughening agents and 0-10 parts of compatilizer. The plastic alloy and the method have the advantages that the rigidity and the heat resistance of the polycarbonate, the low-temperature impact resistance of the siloxane copolymerization polycarbonate and the solvent resistance, the excellent forming properties and the excellent abrasion resistance of the polyethylene terephthalate are integrated in the polycarbonate/siloxane copolymerizationpolycarbonate/polyethylene terephthalate plastic alloy; phase-state structures of resin can be adjusted by the nucleating agents, the superior performance of three components are kept at the high levels, accordingly, effects of complementing the superiority of the components can be realized, and the plastic alloy prepared by the aid of the method is excellent in low-temperature impact resistance,solvent resistance and abrasion resistance.

The invention discloses a composite microbial straw decomposing agent and a preparation method thereof. The composite microbial straw decomposing agent consists of the following raw materials in parts by weight: 20 to 30 parts of bacillus natto, 20 to 30 parts of lactobacillus plantarum, 20 to 30 parts of bacillus mucilaginosus, 50 to 80 parts of trichoderma viride, 100 to 200 parts of saccharomycetes, 500 to 800 parts of molasses, 5000 to 6000 parts of organic fertilizer, 2000 to 3000 parts of soybean meal, 2000 to 3000 parts of wheat bran and 4000 to 5000 parts of softening water, wherein the quantity of the bacillus natto, the lactobacillus plantarum, the bacillus mucilaginosus, the richoderma viride and the saccharomycetes is respectively 500 million to 1 billion per gram. The composite microbial straw decomposing agent is returned to field, the consumption of chemical fertilizer can be reduced, the production cost of grains can be reduced, the seed grain benefit can be increased, even no chemical fertilizer is used, and environment-friendly pollution-free food can be produced.

The present invention relates to a method which adopts the gas produced in the melt reducing iron-smelting process, through the processes of heat exchange, dust-removing, desulfuration, pressurizing, adding catalyst and inert solvent and utilizing slurry bed reactor to produce dimethyl ether and utilizes waste heat to make power generation. Said system method includes melt reducing iron-smelting equipment, synthesis gas cleaning equipment, dimethyl ether synthesijs equipment, product separation equipment and power generator equipment.

The invention discloses a biological organic fertilizer for preventing and controlling soil-borne diseases and a preparation method thereof. The biological organic fertilizer is prepared from the following raw materials in parts by weight: 100 to 150 parts of sheep manure, 60 to 80 parts of chicken manure, 50 to 60 parts of edible fungi residue, 70 to 80 parts of corn stalks, 1 to 2 parts of EM bacterial agents, 2 parts of fermentation accelerators and 1 part of composite fermentation agents. The biological organic fertilizer for preventing and controlling soil-borne diseases has the advantages that the biological organic fertilizer has the advantages that the formula is reasonable; economic performance, effectiveness and environment protection are realized; the crop yield can be obviouslyimproved; the soil-borne diseases can be effectively prevented and controlled; the soil structure can improved; through the cooperated effects of each ingredient, the utilization rate of the fertilizer is greatly improved; the requirements of the crop on the nutrients can be met; the fertilizer effect is achieved to the maximum degree; the yield and the quality can be improved; the fertilizer belongs to an ideal biological green environment-friendly fertilizer.

The invention relates to the field of spinning and discloses a multifunctional self-curled polycaprolactam-polyurethane eccentric skin core compound filament and a preparation method thereof. The polycaprolactam-polyurethane eccentric skin core compound filament is prepared by taking polycaprolactam which is relatively good in wear resistance and adding compound functional master batch as a skin layer and polyurethane with high elastic reversion rate as a core layer by compounding the eccentric skin core. The two high polymers are melted and extruded through a screw extruder, are gathered in aeccentric skin core compound spinneret plate which is designed specially, are extruded from a spinneret orifice, and are oiled, guided and wound to form a UDY filament; and after being balanced, theUDY filament is pulled and thermally set to wind the DY filament so as to finally prepare the multifunctional self-curled polycaprolactam-polyurethane eccentric skin core compound filament with antistatic, anti-ultraviolet and antibacterial compound functions. The product has high elasticity, high elastic reversion rate, relatively good wear resistance and air permeability, and is relatively highin additional value and relatively wide in application range.

The invention discloses special organic fertilizer containing medical stone and used for flowers and a preparation method of the organic fertilizer. The organic fertilizer is prepared from raw materials in parts by weight as follows: 5-10 parts of dry rice husk, 38-48 parts of chicken manure, 38-48 parts of rabbit manure, 4-8 parts of a compound microbial agent, 10-15 parts of medical stone, 4-8 parts of a compound glycerin distilling residue solution and 4-8 parts of a synergist. The special organic fertilizer containing medical stone and used for flowers has balanced nutrition, is safe and reliable and has lasting fertilizer efficiency, so that the flowers are luxuriant, have bright color, strong aroma and long blossoming lasting time and have more and larger flowers, and the flower quality and the medicinal value are notably improved.

The invention relates to the field of preparation technology of solar cells, and specifically relates to a compound technology for metallization of the front side of a solar cell. Main grid lines of the solar cell or main grind lines and partial fine grid lines of the solar cell are prepared by taking a traditional technology as basic technology, and fine grid lines of the front side of the solar cell are prepared by taking an emerging wire enhanced metallization (WEM) technology as main technology, so that the flexibility when a traditional metallization technology is used is fully showed, and the characteristic of high efficiency of the WEM technology is also showed; therefore, the limits of existing equipment for the WEM technology in comprehensive application of solar cell production are broken through.

The invention provides a biological decomposition agent based on a waste edible fungus nutrition bag base material and a preparation method of the biological decomposition agent, and relates to the technical field of decomposition agent preparation. The biological decomposition agent disclosed by the invention is obtained by fermenting a waste edible mushroom nutrition bag base material, wheat bran, flour, soybean meal, light calcium carbonate, diatomite and humic acid serving as raw materials through a compound microbial fermentation agent. Through detection, the number of effective viable bacteria in the biological decomposition agent is up to 2.8-3.3*10<8>/g, the cellulase activity is 158 U/ml, the protease activity is 55 U/ml, the biological decomposition agent can be effectively applied to the fields of livestock and poultry manure fermentation, crop composting, straw returning, treatment and recycling of industrial organic waste residues, sludge, urban organic waste and agricultural product processing waste materials, and resourceful treatment of the waste edible mushroom nutrition bag is realized. Therefore, the biological decomposition agent disclosed by the invention has a wide application prospect and a good economic value.