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198results about How to "Reduce the proportion" patented technology

Hot-rolled wire rod for 2100 MPa bridge cable and manufacturing method of hot-rolled wire rod

The invention relates to a hot-rolled wire rod for a 2100MPa-grade bridge cable and a manufacturing method of the hot-rolled wire rod, after the hot-rolled wire rod is formed by rolling high Si-Mn chemical components and spinning at the spinning temperature of more than or equal to 955 DEG C, the wire rod is cooled at the cooling speed of more than or equal to 36 DEG C / s through online molten salt sorbite regulation and control treatment, enters a sorbite phase region from an austenite state, promotes sorbite phase transformation and is subjected to isothermal treatment to remove stress; and finally, roller way slow cooling is conducted, the hot-rolled wire rod with the microscopic structure comprising tempered sorbite with the volume percentage larger than or equal to 95% and the balance being a mixed structure composed of ferrite and fused sorbite is prepared, deteriorated structures such as network carbide and martensite can be effectively controlled, wire rod structure regulation and control, strength and plasticity matching and stable production are achieved, and the effects that the tensile strength is 1500-1540 MPa, the tensile strength is high, and the tensile strength is high can be achieved. The composite material is used in the application fields of manufacturing of 2100MPa-grade ultrahigh-strength bridge cables and the like, and is beneficial to reduction of the risk of wire breakage.
Owner:JIANGSU YONGGANG GROUP CO LTD

Gasoline engine particle trap with low backpressure amplification and narrow pore size distribution and preparation method thereof

The invention discloses a gasoline engine particle trap with low back pressure amplification and narrow pore size distribution and a preparation method thereof, and belongs to the technical field of gasoline engine tail gas emission treatment. The preparation method comprises the following steps: mixing an inorganic raw material, a pore-forming agent, a binder and water to prepare a pug, carrying out pugging, extrusion molding, microwave drying and high-temperature sintering to prepare a ceramic matrix, and carrying out pore plugging and catalyst coating on the ceramic matrix to prepare the gasoline engine particle trap. Wherein the median particle size D50 of a mixture formed by mixing the inorganic raw materials, the pore forming agent and the binder is controlled to be within the range of 20-26 microns, the span (D90-D10) / D50 is smaller than 1.4, and the gasoline engine particle trap with the back pressure amplification being 13-56% is obtained. According to the method, the pore size distribution condition of the ceramic matrix can be pre-judged in actual production, so that particle distribution adjustment of raw materials is carried out, and the pore size consistency of gasoline engine particle traps produced in batches is guaranteed.
Owner:JIANGSU PROVINCE YIXING NONMETALLIC CHEM MACHINERY FACTORY

User abnormal load identification method based on stereo portrait library and dual-channel weighting

The invention discloses a user abnormal load identification method based on a stereo portrait library and dual-channel weighting, and the method comprises the steps: collecting the load data and industry labels of a user, cleaning the data to obtain a load data set, and dividing a training data set and a test data set; a user load characteristic analysis module is constructed, the unbalance degree between different users and different industry types in the training data set is counted, and a user multi-time-scale typical power consumption curve and a multi-dimensional load characteristic index are extracted in a clustering mode; combining a user load characteristic analysis result with an industry label, performing weighting on each industry user, performing secondary clustering to extract an industry multi-time scale typical power consumption curve and a multi-dimensional load characteristic index, and constructing a three-dimensional portrait library; and after load curve-feature dual-channel weighting is carried out on each industry in the stereo portrait library, load type and abnormal power consumption behavior identification is carried out on unknown users in the test data set. According to the invention, high-accuracy identification of the user load type and the abnormal power consumption behavior is realized.
Owner:SOUTH CHINA UNIV OF TECH

High-purity quartz sand and preparation method thereof

The invention belongs to the technical field of quartz sand preparation, and discloses high-purity quartz sand and a preparation method thereof. The method comprises the following steps: by taking water, mixed alkali and silicon powder as raw materials, uniformly stirring the silicon powder, the water and an additive to prepare silicon sludge, adding the rest raw materials into a reaction kettle, heating, then adding the silicon sludge into the reaction kettle in a frequency division manner, reacting to obtain a sodium silicate solution, removing anion and cation impurities, then adding an acid solution, heating to obtain silicic acid gel, and drying to obtain the silica gel. The silicic acid gel is subjected to freezing treatment, vacuum microwave drying and chloridizing roasting after unfreezing are conducted, and the high-purity quartz sand is obtained. According to the preparation method, the quartz sand with the purity higher than 99.9999% can be synthesized, the granularity of the quartz sand can be controlled according to the adding proportion of the acid solution, the content of gas-liquid inclusion in the quartz sand is remarkably reduced, and the quality of the quartz sand is improved.
Owner:XIAN LANQIAO NEW ENERGY TECH CO LTD

Lignocellulose straw with high bamboo powder content and preparation method thereof

The invention provides a lignocellulose straw with high bamboo powder content and a preparation method thereof. The lignocellulose straw comprises a straw body and a protective layer. The green degradable straw with the bamboo powder content as high as 90% can be prepared through the method. According to the method, lignin is used as a main body material, and a three-layer structure of a protective layer, a lignin straw and a protective layer is formed. And the protective layer is a naturally degradable protective film or an environment-friendly coating. The preparation method comprises the following steps: compounding bamboo wood, cellulose, a protective auxiliary agent and the like according to a ratio, then carrying out negative pressure dehydration, manufacturing into a straw by using a coiling machine with a specified size, drying, rapidly immersing the dried straw into a protective agent, then taking out and airing, and finally cutting into the straw with a specified length by using a pipe cutting machine. The straw effectively relieves plastic pollution, meanwhile, the bamboo wood is utilized in a high-efficiency and high-proportion mode to the maximum extent, and the bamboo wood utilization rate is far higher than that of products sold in the current market. The method has great industrial application value.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Porous carbon felt structure

The invention relates to a porous carbon felt structure which comprises a carbon felt plate, a plurality of porous channels are formed in the carbon felt plate, and the axes of the porous channels are perpendicular to the flow direction of electrolyte on the carbon felt plate and parallel to the thickness direction of the carbon felt plate; a long-strip-shaped flow channel parallel to the flow direction of electrolyte is arranged on a traditional carbon felt plate, the proportion of a low-flow-speed area is 78.01%, according to the pore channel carbon felt structure, the pore channels perpendicular to the flow direction of the electrolyte are arranged on the carbon felt plate to serve as the flow channels, the proportion of the low-flow-speed area is reduced to 6.12%, the pressure loss of the electrolyte flowing on the carbon felt plate is effectively reduced, and the service life of the carbon felt plate is prolonged. The flow velocity of the electrolyte on the carbon felt plate is improved, and the uniformity of flow velocity distribution is also remarkably improved.
Owner:中国电气装备集团科学技术研究院有限公司

Multilayer ultra-light hernia patch

The invention relates to the technical field of medical instruments, in particular to a multi-layer ultra-light hernia patch which comprises a large-mesh electrostatic spinning tissue ingrowth layer, a mesh woven base material layer and an anti-adhesion layer which are sequentially connected in a stacked mode. Wherein after the large-mesh electrostatic spinning tissue ingrowth layer is implanted into a human body, a cell microenvironment can be better simulated, cell adhesion, differentiation and migration are facilitated, uniform distribution of newborn cells in the fiber direction of an electrospinning membrane is promoted, granulation tissues uniformly ingrow in a defect part, and the electrospinning fiber membrane and the tissues are cooperatively repaired; secondly, the middle layer can provide supporting performance and mechanical performance of the patch in the early stage for the patch, the defects of the electrospinning fiber membrane in the supporting performance and the mechanical performance are overcome, the long-term implantation amount of the patch after later degradation is greatly reduced, and the foreign body sensation is obviously reduced; the anti-adhesion layer also adopts the electrostatic spinning technology, and the anti-adhesion effect is achieved by selecting materials and regulating and controlling the porosity, the aperture and the fiber diameter of the electrospun fiber membrane.
Owner:WUXI ZHONGKE GUANGYUAN BIOMATERIALS

Preparation method of oil shale-based aggregate ultra-high performance concrete material

The invention discloses a preparation method of an oil shale-based aggregate ultra-high performance concrete material, which comprises the following steps: (1) uniformly mixing oil shale slag, glass powder, lithium slag powder and magnesium oxide, sintering, cooling to room temperature after sintering, and crushing the sintered product to obtain an oil shale-based fine aggregate; (2) taking the following raw materials: a composite cementing material, the oil shale-based fine aggregate, fly ash, silica fume, modified ardealite powder, fibers, a water reducing agent, sodium hydroxide and / or potassium hydroxide; the composite cementing material is composed of Portland cement and mineral powder. The concrete material is obtained by uniformly mixing the raw materials, adding mixing water and uniformly stirring. According to the method disclosed by the invention, the problem that the strength and the impermeability of the ultra-high performance concrete material prepared by taking the oil shale residues as the fine aggregate are reduced is solved, and the problem that cement components of the ultra-high performance concrete material are wasted is relieved.
Owner:SHANDONG JUNHONG ENVIRONMENTAL PROTECTION TECH CO LTD

REBCO high-temperature superconducting pie coil based on V2O3 film composite strip insulation and preparation method of REBCO high-temperature superconducting pie coil

The invention provides an REBCO high-temperature superconducting cake coil based on V2O3 thin film composite strip insulation and a preparation method. The V2O3 thin film composite strip is formed by compounding a copper base strip and a V2O3 thin film; the REBCO high-temperature superconducting cake coil is formed by winding an REBCO high-temperature superconducting strip with a copper sheath and a V2O3 film composite strip in parallel, and also can be directly wound by an REBCO high-temperature superconducting strip with a V2O3 film coating; when the temperature is below 150K, V2O3 is an inter-turn insulating material of the REBCO high-temperature superconducting cake coil, and the REBCO high-temperature superconducting cake coil can be excited quickly; when the temperature exceeds 150K, the V2O3 is changed into a conductive material, the resistivity is reduced to 10 <-3 > omega.cm magnitude, the REBCO high-temperature superconducting cake coil is an uninsulated magnet, the quench propagation speed is accelerated, and the thermal stability of the high-temperature superconducting cake coil is improved.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Lactobacillus crispatus capable of promoting female genital tract health and delaying genital tract immune aging

The invention discloses lactobacillus crispatus for improving female genital tract microenvironment and immune aging and application of the lactobacillus crispatus, and belongs to the field of probiotics. The probiotic lactobacillus crispatus ProSci-38 disclosed by the invention can be used for effectively improving the symptoms such as pruritus vulvae, causalgia of vagina, abnormal vaginal secretion and the like of patients with vaginitis; mainly through the effect of intestinal tract-vaginal axis, the proportion of lactobacillus is increased, the proportion of harmful bacteria is reduced, the balance of vaginal flora is recovered, and the acidic environment of vagina is maintained; meanwhile, the inflammatory factor level can be reduced, the immune function of the vagina of a patient can be improved, so that the vagina environment is improved, the infection risk is reduced, and the preparation method has a great prospect in preparation of products for relieving and / or treating vaginitis.
Owner:BEIJING SCITOP BIO TECH CO LTD

Method for obtaining copper and ferrous sulfate from low-grade sulfur-oxygen mixed iron-copper ore

The invention discloses a method for obtaining copper and ferrous sulfate from low-grade sulfur-oxygen mixed iron-copper ore, which comprises the following steps: dry-grinding the iron-copper ore, performing low-temperature roasting modification on the dry-ground ore powder to obtain modified ore powder and roasting flue gas, collecting and cooling the roasting flue gas to obtain a crystallization product, and returning the crystallization product to roasting for recycling. The modified mineral powder is subjected to enhanced acid leaching, the acid leaching condition is controlled, and acid leaching residues and leachate are obtained; extracting and reversely extracting the leachate, controlling extraction and reverse extraction conditions to obtain raffinate, copper-rich liquid and an organic phase, recycling the organic phase after acid pickling and iron removal, performing flocculating settling on the raffinate to obtain supernate and settling slag, and performing evaporative crystallization treatment on the supernate to obtain ferrous sulfate. The method can efficiently recover copper in the refractory low-grade sulfur-oxygen mixed iron-copper ore, fully utilizes iron resources, and has the characteristics of simple process, high applicability, high copper recovery rate and the like. And the follow-up emulsification risk of the copper extraction agent can be effectively reduced, and follow-up recovery of copper is facilitated.
Owner:WESTERN MINING CO LTD +2

Rapid page configuration method and device for customer customization and medium

The invention relates to the technical field of data caching, and discloses a rapid page configuration method and device for customer customization and a medium, and the method comprises the steps: obtaining a user demand, behavior data and an accessory library, encrypting and uploading the user demand and the behavior data to a preset block chain, obtaining an intelligent contract, and storing the intelligent contract in the accessory library; extracting a basic accessory from an accessory library according to a questionnaire demand in the user demand by using an intelligent contract; semantic analysis is carried out on supplementary demands in the user demands to obtain supplementary information demands, and supplementary accessories are screened out from the accessory library by utilizing the supplementary information demands; calculating the actual accessory use probability of the user according to the behavior data, and performing weight configuration on the supplementary accessory and the basic accessory according to the actual accessory use probability of the user to obtain to-be-processed accessory information; and performing personalized page construction according to the to-be-processed accessory information to obtain a customized page. According to the method, the individuation degree of page configuration can be improved, and privacy data of a user can be protected.
Owner:招商局智融供应链服务有限公司

Trapezoidal methyl silicone resin and preparation method thereof

The invention relates to the technical field of organic silicon resin preparation, in particular to trapezoidal methyl silicon resin and a preparation method thereof.The trapezoidal methyl silicon resin is prepared by taking methyl trichlorosilane as a main raw material, introducing a trapezoidal control agent containing amido and alkoxy at the same time to inhibit the reaction activity of the methyl trichlorosilane and then carrying out hydrolysis reaction in a small amount of alcohol solvent and water; the generation of a cross-linked network structure insoluble substance during hydrolysis is avoided, and the resin gelation risk is effectively reduced. The hydrolysis rate is reduced, so that the use amount of the solvent is reduced, the proportion of alcohol in the water phase is greatly reduced, and the process and environmental protection cost is reduced. The trapezoidal methyl silicone resin prepared by the method is excellent in viscosity performance, high in yield, excellent in boiling resistance, short in curing time, high in resin softening point and short in gelation time.
Owner:SHANDONG TONGCHUANG CHEM TECH CO LTD

Short comment generation method and device, equipment and storage medium

The invention discloses a short comment generation method and device, equipment and a storage medium, and relates to the technical field of computers. The method comprises the following steps: acquiring multiple pieces of comment information of first multimedia content; extracting a plurality of pieces of target comment information from the plurality of pieces of comment information, wherein the target comment information refers to comment information with recommendation significance for the first multimedia content; segmenting the plurality of pieces of target comment information to obtain a plurality of segmented short sentences; generating a short comment recommendation library of the first multimedia content through a language model according to the information of the first multimedia content and the plurality of segmented short sentences, the short comment recommendation library including a plurality of recommended short comments; non-unique short reviews in the multiple recommended short reviews are removed, a final recommended short review of the first multimedia content is selected from the remaining recommended short reviews, and the non-unique short reviews refer to recommended short reviews associated with multiple other multimedia contents except the first multimedia content. According to the method, the quality of the final recommendation short comments and the recommendation effect of the final recommendation short comments are improved.
Owner:GUANGZHOU KUGOU COMP TECH CO LTD

Preparation method of modified aluminum lithium alloy powder and powder

The invention belongs to the technical field of metal powder material preparation, and particularly relates to a preparation method of modified aluminum lithium alloy powder and the powder. The preparation method comprises the following steps: dispersing aluminum-lithium alloy powder in an organic solvent to obtain a first alloy powder dispersion liquid; introducing dry inert gas into the first alloy powder dispersion liquid, adding hydrofluoric acid, and reacting to obtain second alloy powder dispersion liquid; a coating agent is dissolved in an organic solvent, a coating agent solution is obtained, and the coating agent comprises cellulose acetate and a wax substance; and adding a coating agent solution into the second alloy powder dispersion liquid, stirring at a preset temperature to volatilize the organic solvent and coat the alloy powder with the coating agent, and then carrying out vacuum drying to obtain the modified aluminum-lithium alloy powder. The modified aluminum-lithium alloy powder is good in stability, high in combustion efficiency and capable of actually releasing much heat.
Owner:BGRIMM ADVANCED MATERIALS SCI & TECH CO LTD +1

High-grade non-oriented silicon steel with high favorable texture ratio and production method of high-grade non-oriented silicon steel

PendingCN119530648Alow costlarge grainContinuous annealingShear band
According to the high-grade non-oriented silicon steel with the high favorable texture ratio and the production method of the high-grade non-oriented silicon steel, primary cold rolling reduction, the reduction rate of each pass and the reduction rate of secondary cold rolling are regulated and controlled, meanwhile, the normalizing procedure is replaced with the high intermediate annealing temperature, the cost is reduced, and the production efficiency is improved. A large grain size is obtained before secondary cold rolling, a large number of shear bands are formed on the surface layer and the center layer of the cold-rolled sheet after secondary cold rolling, the area of the shear bands is far larger than the area of a grain boundary, the cold-rolled sheet is promoted to become a leading position of recrystallization nucleation, and meanwhile more {hk0} lt is achieved through a three-section continuous annealing process suitable for subsequent procedures; 001gt, 001gt; and {hkl} lt; 110gt, 110gt; grains of the texture grow up, grains of other orientations are increased, and {hkl} lt is further reduced; 111gt, 111gt; the proportion of the texture and the magnetic induction intensity B50 of the product are improved by more than 0.018 T, and B50 is greater than or equal to 1.66 T.
Owner:МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД

Preparation method of enzymolysis oyster juice

The invention relates to the technical field of biological fermentation, and particularly discloses a preparation method of enzymolysis oyster juice, which comprises the following steps: mixing oyster meat and water, pulping, and grinding to obtain oyster slurry; then protease is added into the oyster pulp for enzymolysis for 10-14 h; after the enzymolysis is finished, activated carbon is added into the oyster slurry after the enzymolysis for adsorption, stirring and heat preservation are carried out, the heat preservation temperature is 75-85 DEG C, then concentration is carried out, and concentrated oyster slurry is obtained; adding edible salt into the concentrated oyster slurry, cooling to room temperature, and then carrying out filter pressing treatment to obtain the enzymolysis oyster juice. The enzymolysis time of the oyster meat is prolonged, the protein utilization rate of the oyster meat and amino nitrogen of the oyster juice can be increased, the mode of combining medium-temperature concentration with physical deodorization is adopted, the oyster fragrance of the oyster juice can be well reserved, the protein utilization rate of the oyster meat and the yield of the oyster juice are increased, the bitter and scorched taste of the oyster juice is reduced, and the flavor of the oyster juice is improved; and the quality of the oyster sauce is improved by applying the additive to the oyster sauce.
Owner:FOSHAN HAITIAN (WUHAN) SEASONING FOOD CO LTD +2

Circulating fluidized bed desulfurizing tower

The utility model discloses a circulating fluidized bed desulfurizing tower. The desulfurization tower at least comprises a desulfurization tower inlet section, a Venturi tube group, a divergent section, a straight tube section and an outlet section which are sequentially and continuously arranged from bottom to top, the desulfurizing tower inlet section comprises a square flue, a transition flue and a circular flue which are connected in sequence; the square flue comprises a 90-degree elbow, and a flue gas inlet is positioned on the horizontal square flue in front of the 90-degree elbow; the 90-degree elbow is internally provided with a flow guide device for preventing flue gas from generating bias flow after the flue gas passes through the elbow; and a rotational flow assembly is arranged at the divergent section of the desulfurizing tower. According to the utility model, when part of flue gas at the outlet of the Venturi tube enters the divergent section of the desulfurization tower, the flow direction is changed under the flow guide action of the blades to form rotational flow. Under the action of centrifugal force of rotational flow, more desulfurizing agents are thrown to the periphery of the desulfurizing tower and decelerated in the rising process, and then fall back to the divergent section, so that the proportion of the internal circulation desulfurizing agent is increased.
Owner:HUATIAN ENG & TECH CORP MCC +1

High-strength premixed pervious concrete for surface layer and preparation method of high-strength premixed pervious concrete

PendingCN119462003Aavoid thickeningImprove water retentionCeramicwareFiberCrushed stone
The invention relates to the technical field of building materials, and particularly discloses high-strength premixed pervious concrete for a surface layer and a preparation method of the high-strength premixed pervious concrete. The invention relates to high-strength premixed pervious concrete for a surface layer. The concrete comprises the following components in parts by weight: 220 to 300 parts of cement, 1570 to 1720 parts of double-graded broken stone, 85 to 120 parts of water, 50 to 100 parts of mineral powder, 18 to 35 parts of anhydrite, 4 to 10 parts of soluble sulfate, 0 to 50 parts of silica fume, 0 to 50 parts of fly ash of 1000 meshes, 20 to 35 parts of quartz stone fine sand of 80 to 120 meshes, 1 to 2.5 parts of a composite water reducing agent, 0.4 to 2.4 parts of a viscosity modifier, 6 to 10 parts of wollastonite fiber powder and 0.4 to 1 part of a defoaming agent. The composite water reducing agent comprises an ether polycarboxylic acid water reducing agent and an ester polycarboxylic acid water reducing agent. The composition and proportion of the concrete are designed and adjusted, so that the concrete has a good construction effect under the premixing condition.
Owner:XIYUEFA INT ENVIRONMENTAL PROTECTION NEW MATERIALS CO LTD

A nanofiltration membrane filament sealing device and sealing method

This invention relates to the field of nanofiltration membrane sealing equipment technology, and in particular to a nanofiltration membrane filament sealing device. The nanofiltration membrane includes several filaments with overlapping ends. The sealing device includes: a frame with a feeding port; a clamping mechanism that uses the tension of the overlapping filaments to clamp the filaments; a positioning mechanism for the heat-sealing position of the nanofiltration membrane filaments, the positioning mechanism being arranged on the frame and above the clamping mechanism, the positioning mechanism being used to abut against the curved portion of the nanofiltration membrane filaments; and a heat-sealing mechanism for heat-sealing the ends of the nanofiltration membrane filaments, the heat-sealing mechanism including a heating wire for ironing the ends of the filaments to seal them. Through the design of the clamping mechanism, positioning mechanism, and heat-sealing mechanism, the heat-sealing position of the nanofiltration membrane is confirmed, and the nanofiltration membrane filaments are trimmed while sealing the ends of the nanofiltration membrane filaments.
Owner:CHANGZHOU MEIXIAN MEMBRANE TECH CO LTD

Memory optimization method and device for network application firewall

PendingCN119668869AImprove concurrent processing performanceimplement cachingResource allocationSecuring communicationTerm memoryNetwork application
The invention relates to a memory optimization method and device for a network application firewall. The method comprises the following steps: establishing a session corresponding to a network request, and selecting a target memory pool from a memory pool linked list of a network application firewall instance according to a memory application request of the session in a process of carrying out risk detection on the network request; under the condition that the memory application space carried by the memory application request is smaller than or equal to the maximum memory block space of the target memory pool, selecting a target memory block from the target memory pool, and allocating the target memory block to the session; when a memory release request of the session is obtained and a memory release space carried by the memory release request is smaller than or equal to the maximum memory block space of the target memory pool, putting the target memory block back to the target memory pool; and when the session is finished, putting the target memory pool back into the memory pool linked list. By adopting the method, the memory management efficiency in the WAF request processing process can be improved, so that memory fragments in a system are reduced, and the performance loss of memory management is reduced.
Owner:CHINA TELECOM CLOUD TECH CO LTD

Application of benzenesulfonamide compound in preparation of medicine for regulating sleep

The invention discloses an application of a benzenesulfonamide compound in preparation of a medicine for regulating sleep, and the structure of the benzenesulfonamide compound is as shown in the following formula: # imgabs0. The invention provides the application of the benzenesulfonamide compound in preparation of the medicine for regulating sleep for the first time. By intravenously injecting the benzenesulfonamide compound into the tail of the mouse, the sleep of the mouse can be promoted, the ratio of waking time of the mouse can be remarkably reduced, and the ratio of non-rapid eye movement sleep time and the ratio of rapid eye movement sleep time are increased.
Owner:XUZHOU MEDICAL UNIVERSITY

Ultrahigh magnetic induction oriented silicon steel strip for low-frequency transformer and preparation method of ultrahigh magnetic induction oriented silicon steel strip

The invention belongs to the technical field of silicon steel materials, and discloses an ultrahigh-magnetic-induction oriented silicon steel strip for a low-frequency transformer and a preparation method of the ultrahigh-magnetic-induction oriented silicon steel strip. A casting blank is subjected to hot rolling, primary cold rolling, decarburization annealing, nitriding, secondary cold rolling, magnesium oxide coating and annealing; a casting blank is prepared from the following components in percentage by mass: 0.02 percent to 0.065 percent of C, 2.7 percent to 3.7 percent of Si, 0.04 percent to 1.1 percent of Mn, 0.002 percent to 0.01 percent of S, 0.015 percent to 0.025 percent of N, 0.030 percent to 0.040 percent of Als and 0.01 percent to 0.3 percent of Cu. According to the method, aluminum nitride is used as an inhibitor, the inhibitor is formed by nitriding an initial alloy component, the sum of the nitrogen content and the nitriding amount in the initial component is about 500 ppm, and the obtained ultrahigh-magnetic-induction oriented silicon steel strip without the island crystal structure and with B800 larger than or equal to 1.95 T is suitable for machining of a 50 / 3 Hz low-frequency transformer iron core.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +2

Optimization design method for thread angle of planetary roller screw pair

The invention relates to an optimal design method for a thread form angle of a planetary roller lead screw pair, and relates to the technical field of planetary roller lead screws, the method comprises the following steps: drawing standard thread form three-dimensional mathematical models of a lead screw, a roller and a nut in three-dimensional software according to thread parameters of the planetary roller lead screw pair; performing meshing analysis on the screw rod or the nut and partial thread section of the roller in a simulation module of the three-dimensional software; the thread angle value of the first lead screw or the second nut is adjusted based on the meshing condition of partial thread sections of the first lead screw and the first roller in the standard structure or the meshing condition of partial thread sections of the second nut and the second roller in the reverse structure. Therefore, on the premise that the first pin roller and the first lead screw or the second nut and the second pin roller do not interfere with meshing, the mutual meshing position is optimized. According to the design method, the thread angle value of the lead screw or the nut is optimized, the problem of poor thread meshing is solved, the bearing capacity and the transmission efficiency are improved, thread abrasion is reduced, and the service life is prolonged.
Owner:HUBEI KEFENG TRANSMISSION EQUIP CO LTD

Method for optimizing oyster juice flavor, oyster juice flavor base material, application and oyster sauce

The invention provides a method for optimizing the flavor of oyster juice, an oyster juice flavor base material, application and oyster sauce, and the method for optimizing the flavor of the oyster juice comprises the following steps: pretreating rehydrated wheat flour to prepare a wheat flour treatment substance; the water content of the rehydrated wheat flour is 15wt%-20wt%, the pretreatment temperature is 160-190 DEG C, the time is 30-60 minutes, and the pressure is 0.11-0.15 MPa; mixing the treated wheat flour with oyster juice according to a mass ratio of (10-30): (70-90), and performing first heat preservation treatment to prepare an oyster juice base material semi-finished product; the temperature of the first heat preservation treatment is 60-80 DEG C, and the time is 1-3 hours; and mixing the semi-finished oyster juice base material with monosodium glutamate, carrying out second heat preservation treatment, and adding seasoning auxiliary materials into the mixture obtained by the second heat preservation treatment. The proportion of acid flavor compounds in the oyster juice flavor base material prepared by the method is reduced, and the wheat flavor and sweet flavor are improved.
Owner:FOSHAN HAITIAN (JIANGSU) SEASONING FOOD CO LTD +2

High-yield cultivation system and method for star anise trees

This invention relates to the field of high-yield cultivation technology, specifically to a high-yield cultivation system and method for dwarfing and dense planting of star anise trees. The system includes a planning and setting module, a soil temperature sensing and monitoring module, a soil temperature analysis module, and a pruning and fertilization adjustment module. The soil temperature sensing and monitoring module includes several temperature sensors buried in the rhizosphere soil of the star anise trees. The soil temperature analysis module receives the daily average and daily difference values ​​of soil temperature collected by the soil temperature sensing and monitoring module, and converts them into information on the microbial activity of the planting soil and the canopy leaf density to regulate planting, pruning, and fertilization. The method includes S1 variety and rootstock selection, S2 dense planting planning, S3 planting and soil temperature monitoring and setting up, S4 pruning and fertilization of young trees, and S5 mature tree management. This invention solves the technical defects of traditional dwarfing and dense planting of star anise trees, such as the mismatch between uniform shaping management and tree growth needs caused by environmental heterogeneity, and yield fluctuations, by constructing a dynamic control system driven by soil temperature data.
Owner:CENXI QIPING FOREST FARM

Pharmaceutical composition containing abelmoschus manihot extract as well as preparation method, preparation and application of pharmaceutical composition

The invention discloses a pharmaceutical composition containing an abelmoschus manihot flower extract and a preparation method, application and a preparation thereof, and belongs to the technical field of pharmaceutical preparations, the pharmaceutical composition is composed of the abelmoschus manihot flower extract, magnesium stearate and calcium hydrogen phosphate. Compared with the prior art, the pharmaceutical composition disclosed by the invention has better long-term stability, and the medicament prepared by applying the pharmaceutical composition is smaller in volume, so that the taking discomfort or swallowing difficulty of a patient is reduced, and the compliance is improved.
Owner:SUZHONG PHARMACEUTICAL GROUP CO LTD

Sonar array expansion mechanism

The invention discloses a sonar array expansion mechanism, and relates to the technical field of sonar arrays, the expansion mechanism comprises a frame assembly, a transmitting array assembly and a receiving array assembly, the receiving array assembly is a circular tube transducer array, and the receiving array assembly comprises a linear driving mechanism and a plurality of receiving array components; the linear driving mechanism is arranged at the position, close to the top end, in the frame assembly, the multiple receiving array assemblies are distributed on the outer side of the frame assembly in the circumferential direction, and one end of each receiving array assembly is connected with the edge of the top of the frame assembly in a vertical rotating mode. The linear driving mechanism is fixedly connected with a connecting part, and the connecting part can be driven by the linear driving mechanism to move in the axis direction of the frame assembly; and the connecting part is connected with the plurality of receiving array assemblies. The device is simple in structure, reduces the volume ratio of the contraction and expansion mechanism, improves the space utilization rate of the sonar probe, simplifies the transmission relation of the contraction and expansion mechanism, reduces the bending of a signal cable, improves the reliability, and is higher in practicability.
Owner:AVIC AVIONICS CO LTD

Full-automatic traditional Chinese medicine decoction piece packaging device

The utility model discloses a full-automatic traditional Chinese medicine decoction piece packaging device which comprises a device body, the upper side of the device body is fixedly connected with a feeding groove, the interior of the device body is fixedly connected with a rotating rod, the exterior of the rotating rod is rotationally connected with a filter plate, the bottom of the filter plate is provided with filter holes, and the interior of the device body is fixedly connected with an abutting base. A first motor is fixedly connected to the exterior of the device body, a rotating shaft is fixedly connected to one side of the first motor, an abutting plate is fixedly connected to the exterior of the rotating shaft, the abutting plate abuts against the fixing plate, an outlet is formed in the bottom of the device body, and a base is fixedly connected to the bottom of the device body. A collecting box is slidably connected outside the base. According to the device, the inclined filter plate is designed, the filter plate and the abutting base collide and vibrate, and therefore chippings in the traditional Chinese medicine decoction pieces can be screened, the proportion of the chippings in the packaging box after packaging is reduced, and meanwhile discharging and packaging can be facilitated when the filter plate is lifted up.
Owner:SICHUAN XISHU JIUJIN MODERN CHINESE MEDICINE CO LTD

A traditional Chinese medicine composition for treating intrahepatic cholestasis and application thereof

This invention relates to a traditional Chinese medicine combination for treating intrahepatic cholestasis, which is made from the following raw materials in parts by weight: Artemisia capillaris and Glycyrrhiza uralensis 5:1 and 3:1. This invention also provides the preparation of the above-mentioned medicine and its use in treating intrahepatic cholestasis. Its advantages are: the traditional Chinese medicine composition of this invention (Artemisia capillaris and Glycyrrhiza uralensis decoction) has a significant ameliorative effect on intrahepatic cholestasis (non-obstructive type) induced by a 1% CA-containing diet in mice. Artemisia capillaris and Glycyrrhiza uralensis decoction can alleviate weight loss in mice and improve liver necrosis; significantly reduce serum ALT and ALP levels in mice; reduce the content of total bile acids in the liver and decrease the proportion of toxic bile acid taurine deoxycholic acid (TDCA) in the bile acid pool; upregulate liver BSEP protein expression to promote bile acid efflux; and downregulate liver NLRP3 protein expression to alleviate liver necrosis.
Owner:裘福荣 +1