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29results about How to "Clear parameters" patented technology

A subway existing line building waterproof system lap joint construction method

This invention discloses a method for overlapping construction of waterproofing systems in existing subway lines. It relates to the field of underground engineering waterproofing construction technology and includes: Step 1, current status investigation and deformation assessment; Step 2, overlapping structure system design; Step 3, key material selection and process matching; Step 4, refined overlapping construction process; and Step 5, full inspection after each process. This invention's method for overlapping construction of waterproofing systems in existing subway lines, through Step 1, involves structural deformation monitoring and analysis and diagnosis of the existing waterproofing layer; Step 2, involves deformation adaptation structure design and differential deformation compensation design; Step 3, involves material selection and process innovation; Step 4, involves base treatment, interface treatment, expansion joint and node construction, and reinforcement layer construction; and Step 5, involves process inspection. This method, tailored to the characteristics of existing subway lines, enables the effective combination of different waterproofing materials, adapts to continuous deformation, and ensures long-term reliability.
Owner:CHINA RAILWAY 16TH BUREAU GRP CO LTD +2

Enzymolysis cyperus esculentus powder as well as preparation method and application thereof

PendingCN121942865ARealize full utilization of high valueImprove degradation rateFood scienceBiotechnologyAmylase
The invention relates to the technical field of agricultural product deep processing and functional food science, in particular to enzymolysis cyperus esculentus powder and a preparation method and application thereof. The preparation method comprises the steps that cyperus esculentus powder and water are mixed, pulped and cured; performing high-speed shearing pretreatment on the slurry; adding a compound enzyme preparation containing amylase, cellulase and protease for enzymolysis; carrying out enzyme deactivation after enzymolysis, and filtering; performing emulsification and two-stage high-pressure homogenization treatment on the filtrate; and finally spray-drying to obtain a finished product. Through the synergistic effect of high-speed shearing and composite enzymolysis, cell walls of cyperus esculentus are effectively broken, macromolecular nutrient substances are converted into micromolecules, and the solubility, taste and nutrition utilization rate of the product are remarkably improved. The prepared enzymolysis cyperus esculentus powder is good in instant solubility, good in flavor and high in stability, and can be widely applied to the fields of solid beverages, special dietary foods and the like.
Owner:HEZE YUANTIANYUAN BIOTECHNOLOGY CO LTD

A gallium-modified dealuminated h-zsm-5 catalyst, a preparation method and application thereof

The application belongs to the technical field of biomass catalytic conversion, and specifically discloses a gallium-modified dealuminized H-ZSM-5 catalyst, a preparation method and application thereof, and the method comprises the following steps: ion exchange is performed on Na-ZSM-5 molecular sieve and an ammonium salt solution; selective dealuminization is performed on NH4-ZSM-5 molecular sieve and an ammonium hexafluorosilicate solution; and the impregnation method is used to load a gallium salt solution to the dealuminized molecular sieve carrier DeAl-H-ZSM-5, so as to obtain the gallium-modified dealuminized H-ZSM-5 catalyst. The application adopts the above-mentioned gallium-modified dealuminized H-ZSM-5 catalyst, the preparation method and application thereof, and the method is characterized in that the composite strategy of purifying the base by selectively dealuminizing first and then precisely loading Ga to regulate the acidity is adopted, the prepared catalyst can efficiently catalyze the preparation of furfural from pentose in a γ-valerolactone / water system, and high conversion rate and high selectivity are realized.
Owner:TIANJIN UNIV

A low-bitter rice residue peptide micelle, rice residue protein hydrolysate and preparation method and application thereof

PendingCN122648521ARemarkable debitterness effectclear mechanism
The application discloses low-bitter rice residue peptide micelles, a rice residue protein hydrolysate and a preparation method and application thereof, and relates to the technical field of protein processing. The preparation method comprises the following steps: performing step-by-step enzymolysis on rice residue protein to perform directional cutting on the hydrophilic region and the hydrophobic region of the rice residue protein, so as to obtain an amphiphilic polypeptide mixture; adjusting the pH and the temperature, so that the amphiphilic polypeptide mixture is self-assembled to form rice residue peptide micelles, and low-bitter rice residue peptide micelles are obtained. The application aims to solve the technical problems that the existing rice residue protein enzymolysis product has significant bitterness, and traditional debittering technologies have the problems of nutrient loss or the need for external addition. A new mechanism of realizing physical debittering by constructing a supramolecular micelle structure is innovatively proposed and verified. The rice residue protein peptides after enzymolysis are self-assembled to form stable nanometer micelles through step-by-step enzymolysis and directional cutting, so that the hydrophobic groups causing bitterness are selectively embedded in the core of the micelles, and the contact of the hydrophobic groups with taste receptors is physically blocked.
Owner:NANCHANG UNIV +1

Cervical squamous carcinoma prognosis model based on programmed cell death gene pool and multi-algorithm consensus screening and construction method

PendingCN122314106AStrong specificityRigorous constructionCancer genomeCox proportional hazards regression
This invention discloses a prognostic model and construction method for cervical squamous cell carcinoma, belonging to the fields of bioinformatics and oncology. The construction method is based on a set of genes related to programmed cell death, integrating multi-omics data of cervical squamous cell carcinoma patients from The Cancer Genome Atlas (TCGA), Gene Expression Omnibus (GEO), and the Cancer Genome Characterization Project (CGCI). After standardized preprocessing, differential expression analysis, bootstrap resampling combined with univariate Cox regression for initial screening, consensus screening using multiple machine learning algorithms, and finally, multivariate Cox proportional hazards regression analysis to identify three core independent prognostic genes and construct a risk scoring model. This model has undergone multi-dimensional validation and optimization, demonstrating robust predictive performance. The method of this invention is standardized and highly reproducible, and the constructed model has high accuracy and strong generalization ability, providing a reliable tool for individualized prognostic assessment and clinical decision-making for cervical squamous cell carcinoma patients.
Owner:SICHUAN NORMAL UNIV

A silver layer-based migration-resistant terminal plating layer and a preparation method thereof

PendingCN122279695Aevenly dispersedNo risk of short circuitNanoparticleSilver ion
This invention provides a silver-based terminal coating with high migration resistance, relating to the field of terminal coating preparation technology. The coating, from the inside out, comprises a copper alloy substrate, a nickel underlayer, a composite silver layer, and a gold protective layer. The nickel underlayer is formed by electroplating with a nickel plating solution containing nickel sulfamate, nickel chloride, and boric acid. Through the synergistic effect of nanoparticle surface modification treatment, pulse co-deposition process, and interface optimization technology, the nanoparticles are uniformly dispersed in the composite silver layer and form a stable bond with the coating. Combined with the protective system formed by the dual-pulse gold plating process, the migration path of silver ions is blocked from the source, ensuring that the terminal has no short-circuit risk under long-term use and harsh environments, and significantly improving the product's service life and reliability.
Owner:DONGGUAN YICHUANG SURFACE TREATMENT TECH CO LTD

A method for quantitatively analyzing pore and fissure structure of ore

The application provides a quantitative analysis method for ore pore and fissure structure, and relates to the technical fields of mineral processing, metallurgical engineering and geological analysis. The method realizes accurate prediction of effective porosity of heap leaching ore by coupling on-site particle size investigation, laboratory "quasi on-site" heap construction, ore block fissure microscopic measurement and mass-volume conservation calculation. The method effectively overcomes the technical problems that the traditional method depends on single scale measurement, and is difficult to comprehensively reflect the complex structure from nanoscale pore to centimeter scale fissure, especially for the mixed ore of coarse and fine particle grades. The existing technology often processes different particle grades respectively, lacks systematic integration and mutual correction, and causes deviation of the calculation results of porosity and fissure rate.
Owner:CHANGCHUN GOLD RES INST

Temperature and humidity sensor

The utility model relates to a temperature and humidity sensor, and relates to the technical field of sensors. The humidity sensor is provided with a containing cavity and a shell of the containing cavity which are not communicated, a detection hole is formed in the shell, the detection hole is communicated with the containing cavity, the probe is arranged in the containing cavity, one end of the probe extends towards the detection hole, the other end of the probe is electrically connected with the display panel, and therefore the probe makes contact with the external environment through the detection hole. Therefore, the temperature value and the humidity value of the use environment of a user can be detected in real time, the other end of the probe is connected with the display panel, the measured temperature value and the measured humidity value can be displayed on the display panel, the backlight plate is arranged on the non-display side of the display panel, and light is projected to the display panel, so that displayed parameters are clearer. The backlight plate capable of heating is arranged in the accommodating cavity, and the probe is arranged in the accommodating cavity, so that the influence of heat generated by the backlight plate on the probe is reduced, and the measurement precision of the temperature and humidity sensor is improved.
Owner:SOUTHERN POWER GRID SENSING TECHNOLOGY (GUANGDONG) CO LTD

Tissue culture and rapid propagation method of paeonia ludwigii by utilizing immature embryos to induce cluster buds

PendingCN121844954AGermination is efficient and stableEfficient and stable germination ratePlant tissue cultureHorticulture methodsPaeonia suffruticosaShoot
The invention belongs to the technical field of plant tissue culture, and discloses a Paeonia fulva tissue culture and rapid propagation method for inducing cluster buds by using immature embryos, which comprises the following steps: collecting fresh seeds at a specific development stage, sterilizing, and stripping embryos aseptically; inoculating the embryos into a germination culture medium containing 6-BA, IAA and GA3 to start culture; after radicle tail ends of the germinating embryos are cut off, the embryos are directionally inoculated to a subculture medium according to the original polarity, and sterile seedlings are obtained; transferring the seedlings into an induction culture medium containing 6-BA, IAA and charcoal to induce cluster buds, and further proliferating; cutting robust tender shoots, removing cotyledons, and inoculating into a rooting culture medium containing IBA (indolebutyric acid), NAA (naphthylacetic acid) and charcoal to induce rooting; and finally, carrying out strong seedling culture and domestication transplanting to obtain a survived plant. According to the method, the deep dormancy obstacle of the seeds is broken through, efficient and stable regeneration from embryos to seedlings is achieved, the breeding cycle is short, the rooting and transplanting survival rate is high, and the method is suitable for large-scale protection and production of rare resources.
Owner:WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI

Construction method of mouse placenta-targeted gene interference model and application thereof

PendingCN122250427AOvercome delivery limitationsHigh concentration enrichmentFermentationPlant genotype modificationDiseasePregnancy
The application discloses a kind of construction methods of mouse placenta targeted gene interference model and its application.The method comprises the following steps: first, pregnant mouse is anaesthetized and abdominal operation is carried out, and the uterus containing placenta is exposed;Then, the adeno-associated virus carrying gene interference element is directly injected into target placental tissue;Finally, the wound is sutured to complete model construction.The present application overcomes the problem of low virus delivery efficiency caused by maternal-fetal barrier by intraoperative direct site injection, and realizes the efficient and specific gene interference of placental tissue.The model constructed is targeted and precise, has high interference efficiency and low off-target effect, and provides an effective tool for studying placental gene function and pregnancy-related diseases.
Owner:EIGHTH AFFILIATED HOSPITAL SUN YAT SEN UNIV (SHENZHEN FUTIAN)

A low-sodium polypeptide fresh composite seasoning without monosodium glutamate and a preparation method thereof

PendingCN122271500AHas nutritional activityMeet modern healthy dietary needsMonosodium glutamateCellulose
This invention discloses a low-sodium polypeptide umami compound seasoning without monosodium glutamate (MSG) and its preparation method, belonging to the field of food seasoning technology. This low-sodium polypeptide umami compound seasoning is composed of polypeptide umami components, low-sodium flavor components, flavor-regulating components, and stabilizers in a specific ratio. It is monosodium glutamate-free and has a sodium content ≤800mg / 100g. The polypeptide umami components are composed of soybean polypeptides and seafood polypeptides; the low-sodium flavor components are composed of low-sodium salts and disodium inosinate (I+G) synergistically; the flavor-regulating components include natural spice extracts and fructooligosaccharides; and the stabilizer is a compound system of xanthan gum and sodium carboxymethyl cellulose. This invention achieves natural umami enhancement through polypeptide compounding, replacing MSG while improving the complexity and persistence of umami flavor.
Owner:四川友联味业食品有限公司

A method, system, and product for the preparation of high purity copper-64 isolated and purified from a nickel target

This invention discloses a method, system, and product for separating and purifying high-purity copper-64 from a nickel target, belonging to the field of radionuclide preparation and separation technology. The method includes acid dissolution of the irradiated nickel target, and the resulting product containing... 64 Cu、 64 Ni、 61 The solution of Co was loaded onto a pretreated AG1-X8 anion exchange resin column, followed by rinsing with 50-60 mL of 6M HCl to remove Co. 64 Ni was removed by rinsing with 20-30 mL of 4M HCl. 61 Co was finally eluted with 4-6 mL of 2M HCl to obtain high purity. 64 Cu product. This invention achieves highly efficient and selective separation of 64Cu by optimizing the elution sequence and conditions. The product has a nuclear purity >99.9%, extremely low content of key metal impurities, and a separation efficiency of over 84%, making it suitable for medical applications. 64 A reliable solution has been provided for the large-scale production of Cu.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Antibacterial cat and dog virus resistant pet plate and preparation method thereof

PendingCN121798722Aavoid breedingImprove durabilityWood treatment detailsThermal wood treatmentFeline calicivirus infectionCanine distemper virus CDV
The invention discloses an antibacterial cat and dog virus resistant pet plate and a preparation method thereof.The method comprises the steps that 1, a base material plain plate is subjected to antibacterial treatment to obtain an antibacterial base material, and the treatment includes coating or vacuum infiltration with antibacterial liquid and high-temperature fumigation with fumigation water containing plant extract oil; (2) preparing wear-resistant cat and dog virus resistant impregnated paper, firstly, impregnating thickened tensile decorative paper into an antiviral solution prepared from polyhexamethylene biguanide hydrochloride / quaternary ammonium salt, purified water and emulsified oil to obtain cat and dog virus resistant paper, and then impregnating the cat and dog virus resistant paper into resin mixed glue added with the antiviral solution and an aluminum oxide / silicon carbide wear-resistant material; 3, the impregnated paper and the antibacterial base material are attached in a hot-pressing mode. According to the antibacterial cat and dog virus resistant pet plate and the preparation method thereof, through the base material antibacterial treatment and impregnated paper dual functionalization technology, the excellent surface abrasion resistance and scratching resistance, the broad-spectrum antibacterial capacity and the specific efficient antiviral function on cat calicivirus and canine distemper virus are achieved.
Owner:CHENGDU MEIKANGSANSHAN WOOD IND CO LTD

A Swing-AHP-based method for evaluating the number of icebreaking mechanism groups

A method for evaluating the number of ice-breaking mechanism groups based on Swing-AHP weighting, belonging to the field of computer-aided design technology, aims to solve the problem of the lack of a quantitative evaluation system in the existing ice-breaking mechanism group design. The method includes the following steps: Step S10, collecting the height values ​​of sampling points on the road surface, calculating road feature parameters, importing the road feature parameters into 3D modeling software, constructing a 3D model of the road features, and constructing an ice layer model on the surface of the 3D model of the road features; Step S20, setting up a control group of 1 to 10 ice-breaking units for ice-breaking mechanisms with the same ice-breaking unit width. This invention achieves a comprehensive evaluation of the overall performance of ice-breaking mechanisms through a multi-dimensional index system and a scientific weighting algorithm; dual simulation verification ensures the accuracy and reliability of the results; applied to engineering design, it can effectively reduce R&D costs and trial-and-error risks, taking into account structural safety, operational efficiency, and economy, and has broad engineering applicability and scalability.
Owner:JILIN UNIVERSITY

Determination method of multivalent antigen sequence of anti-periodontitis red complex

The invention belongs to the technical field of biology, and discloses a method for determining a multivalent antigen sequence of an anti-periodontitis red complex, which comprises the following steps: firstly, screening out key virulence factor antigens (FimA-II, RgpA, Msp and BspA) from three core pathogenic bacteria of the red complex: porphyromonas gingivalis, treponema denticola and fusisterone; then, independently cloning each antigen gene to a pUC57 cloning vector, constructing a single antigen recombinant plasmid, and avoiding intergene interference by designing a specific enzyme cutting site; and finally, through plasmid transformation, positive clone screening and double enzyme digestion verification, the plasmid quality is ensured. The obtained single antigen plasmid can be flexibly combined and used, is beneficial to subsequent multivalent vaccine development, and has the advantages of wide antigen coverage, high expression reliability, flexible construction strategy, easiness in industrialization and the like.
Owner:JINYUE ZHICHENG (LIAONING) BIOTECHNOLOGY CO LTD

High-reliability silver-copper-titanium AMB solder and preparation method thereof

The invention discloses a high-reliability silver-copper-titanium AMB solder and a preparation method thereof, and belongs to the technical field of electronic welding materials. The solder is composed of silver powder, copper powder, titanium powder, an organic binder and an organic diluent, wherein the organic binder is prepared from acrylic resin and a specific organic solvent. The key point of the preparation method is that the silver powder, the copper powder, the organic binder and the organic diluent are finely mixed and dispersed through a specific multi-stage gradient rolling process; and then, under the condition that the roller gap is adjusted to be large, titanium powder is slowly added in batches and mixed, so that the activity of the titanium powder is prevented from being damaged in violent processing. The solder paste prepared by the method is uniform and stable in performance. When the AMB solder is applied to brazing of an aluminum nitride ceramic substrate, reliable welding spots low in interface porosity, high in bonding strength and excellent in temperature cycle resistance can be formed, and the problems that an existing AMB solder is large in number of pores, poor in strength and insufficient in reliability are effectively solved.
Owner:HEFEI SHENGDA ELECTRONIC TECH IND CO LTD

Improved sinew strengthening and bone reunion pill preparation as well as preparation method and application thereof

The invention discloses an improved sinew-strengthening and bone-joining pill preparation and a preparation method and application thereof. The preparation is prepared from seventeen raw material medicines including prepared rehmannia root, radix astragali preparata, codonopsis pilosula, angelica sinensis, rhizoma drynariae, herba epimedii, teasel root, calcined native copper, pseudo-ginseng, ligusticum wallichii, radix paeoniae alba, ground beetle, salvia miltiorrhiza, radix achyranthis bidentatae, pawpaw, cassia twig, liquorice and the like. On the basis of traditional qi reinforcing, blood nourishing and liver and kidney tonifying, the effects of removing blood stasis, setting bones, dredging collaterals and benefiting joints are enhanced. The invention also provides a preparation method of the preparation, which comprises the following steps: crushing part of medicinal materials, decocting the rest medicinal materials with water, concentrating, and mixing to obtain the preparation. The preparation can be used for promoting fracture healing and later functional rehabilitation, and can be combined with western medicines such as a calcium agent, vitamin D and an anti-osteoporosis medicine to generate a synergistic interaction effect, so that a better traditional Chinese medicine scheme is provided for treatment of orthopedics and traumatology diseases.
Owner:ZHONG YAN PHARM CO LTD OF JILIN PROVINCE

Composite pickling agent and method for pickling salted preserved eggs at constant temperature

PendingCN121942871AShorten curing cycleIncrease productivityClimate change adaptationFood sciencePickling saltProcess engineering
The invention discloses a composite pickling agent and a method for pickling salted preserved eggs at a constant temperature, and relates to the field of food processing, the composite pickling agent is prepared from the following raw materials in parts by weight: 1.5-2.5 parts of dietary alkali, 18-22 parts of edible salt, 90-110 parts of water and 0.5-5 parts of optional five spices, according to the composite pickling agent and the method for pickling the salted preserved eggs at the constant temperature by using the composite pickling agent, the pickling period of more than 30 days in the traditional process is shortened to 8-15 days through the cooperation of a specific alkali-salt ratio and a constant-temperature condition, so that the production efficiency is greatly improved.
Owner:JIANGXI SHENGYOU AGRI DEV CO LTD

Traditional Chinese medicine compatibility type naturally fermented skin nourishing and whitening spray and preparation method thereof

PendingCN121943772Aimprove textureMeet the demand for “instant whitening”Cosmetic preparationsToilet preparationsBiotechnologyChinese-olive
The invention belongs to the technical field of cosmetics, and particularly relates to a traditional Chinese medicine compatibility type naturally-fermented skin nourishing and whitening spray and a preparation method thereof. The health-care food is prepared from, by weight, 8-15 parts of roxburgh rose, 6-10 parts of kiwi fruit, 5-10 parts of Guizhou Chinese olive, 3-8 parts of apple, 4-8 parts of Chinese yam, 4-9 parts of potato, 2-5 parts of almond, 3-7 parts of lotus root, 2-6 parts of water chestnut and 5-12 parts of water chestnut through compound fermentation, a gradient fermentation technology is adopted, active ingredients of food materials are reserved to the maximum extent, and the total content of core nutrients is not lower than 3.8 mg / mL; according to the traditional Chinese medicine compatibility type natural fermented skin nourishing and whitening spray and the preparation method thereof, the traditional Chinese medicine five-element compatibility theory is taken as a core, natural medicinal and edible food materials are taken as raw materials, and a modern three-time composite fermentation technology is taken as a support, so that four targets of instant effect, long-acting nourishing, whole-skin adaptation and food-grade safety are achieved, and meanwhile, the product is mild and non-irritating, and the skin nourishing and whitening effect is achieved. The mask is suitable for various skin types.
Owner:GUIYANG MIAOJIESHEN DAILY CHEMICAL BUSINESS DEPARTMENT (GENERAL PARTNERSHIP)

A traditional Chinese medicine composition with cough-relieving effect and a preparation method thereof

PendingCN122251479AExpand medicinal valueclear treatment effect
The present application relates to the technical field of traditional Chinese medicine preparation, and discloses a traditional Chinese medicine composition with cough-relieving effect and a preparation method thereof, which is composed of one or both of crude drug powder of summerleaf euonymus and summerleaf euonymus extract, and contains the following components in mass fraction: 1-15 parts of summerleaf euonymus crude drug powder and 1-10 parts of summerleaf euonymus extract.In the present application, the medicinal activity of summerleaf euonymus in the field of cough relief is found and verified, the therapeutic effect of summerleaf euonymus on various types of cough is determined, the application limitation of summerleaf euonymus in the prior art, i.e. only used for promoting blood circulation to remove meridian obstruction and relieving qi stagnation and pain, is broken, and the clinical application range and medicinal value of summerleaf euonymus are greatly expanded.
Owner:庞正洲

Method for detecting the content of budesonide in budesonide nasal spray

This invention discloses a method for detecting budesonide content in budesonide nasal spray, relating to the field of chemical analysis technology. The steps are as follows: First, a budesonide nasal spray sample is taken, cellulase is added for enzymatic hydrolysis, then diluted with the mobile phase, shaken well, centrifuged, and filtered to obtain a test solution; then, a budesonide reference standard is taken, dissolved and diluted with the mobile phase to obtain a reference solution; the test solution and the reference solution are injected into a high-performance liquid chromatograph for detection, respectively, to obtain peaks of budesonide isomer A and budesonide isomer B; finally, the content is calculated by the sum of the peak areas of budesonide isomer A and budesonide isomer B using the external standard method. This method, by introducing a cellulase enzymatic hydrolysis step in the sample pretreatment, effectively hydrolyzes the co-treated microcrystalline cellulose and sodium carboxymethyl cellulose, achieving complete separation of the active ingredient budesonide from the excipients.
Owner:JIANGSU DEMAI PHARMACEUTICAL CO LTD

A highly efficient composite catalyst for Michael addition reactions and its application methods

A highly efficient composite catalyst for the Michael addition reaction and its application method are disclosed, relating to the field of catalytic chemistry. The composite catalyst comprises a main catalyst system, a co-catalytic modifier, and a reaction terminator. The main catalyst system is a composite of Lewis base catalyst A and metal salt catalyst B. The co-catalytic modifier works synergistically with the main catalyst system to enhance catalytic performance. In application, through steps such as raw material pretreatment, catalyst preparation, isothermal dropwise addition, temperature-controlled reaction, and termination treatment, this composite catalyst is used in the Michael addition step of the synthesis of 2-chloro-5-chloromethylpyridine, achieving synergistic optimization of catalytic activity and selectivity, providing a reliable technical solution for the efficient synthesis of related pesticide intermediates.
Owner:WUWEI JIEDA TECH CO LTD

Method and system for planning parking forced landing route of engine of fixed-wing aircraft

PendingCN121855526Aclear parametersImprove ability to handle special situationsNavigational calculation instrumentsFlight testFlight height
The invention relates to the technical field of flight tests, and discloses a fixed-wing aircraft engine parking forced landing route planning method and system, and the method comprises the steps: carrying out the selection of a landing route pattern during the forced landing of an aircraft according to the actual flight conditions during the parking of a fixed-wing aircraft engine, such as the flight height and speed; then, the vertical space of the forced landing route is divided into a plurality of height intervals, according to the lift-drag ratio in aerodynamic characteristics of an aircraft, under the condition of considering the rolling angle and the average flight speed of the aircraft, the gliding trajectory angle and the ground projection radius of each height interval are accurately analyzed, and the height, the advancing distance, the trajectory shape and other elements of the whole route are obtained; and further obtaining a parking forced landing route with clear sections and parameters. When the first flight of the new aircraft encounters the special situation of engine parking, the unit can implement safe landing according to the correct parking forced landing route according to the specific situation, the special situation handling capacity of the unit encountering the engine parking is improved, and the test flight safety margin is improved.
Owner:SHAANXI AIRCRAFT CORPORATION

Titanium alloy foil straightening method based on cooperative control

PendingCN122057817ABest softening temperatureRetain mechanical propertiesShaping toolsMetal working apparatusTemperature controlLoop control
The invention belongs to the technical field of titanium alloy material processing, and discloses a titanium alloy foil straightening method based on cooperative control. According to the method, constant-tension unwinding, pulse current auxiliary heating, whole-process synchronous transverse stress application, pulling-bending composite cycle straightening, flatness closed-loop control and constant-tension winding are adopted for conducting composite collaborative straightening on the titanium alloy foil. The method has the core advantages that the three core processes of focused pulse current heating, transverse stress applying and circulating straightening are synchronized and coordinated, and cracking and springback are inhibited from the source; and by matching with double closed-loop control of real-time temperature control of the temperature sensor and flatness closed-loop control, the technical problems that the titanium alloy foil is easy to crack during straightening, serious in rebound, uneven in breadth stress and substandard in flatness are solved in a targeted manner, and the temperature and flatness precision is remarkably improved.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

High-performance cermet composite grinding roller and preparation method thereof

This invention belongs to the field of metal-ceramic composite materials technology, specifically relating to a high-performance metal-ceramic composite grinding roller and its preparation method. The grinding roller consists of a grinding surface layer, a pure metal transition layer, and a tough roller core, which are metallurgically integrated. The grinding surface layer is a composite of a multi-system ceramic reinforcing phase and a high-toughness, high-chromium cast iron matrix. The ceramic particles are treated with a NiP amorphous coating and optimized through a three-level particle size distribution and PSZ secondary reinforcing phase optimization. The roller core is made of medium-carbon alloy steel. The preparation method includes five steps: ceramic preform preparation, roller core pretreatment and assembly, centrifugal casting composite, vacuum sintering densification, and differential temperature heat treatment and finishing. This invention fundamentally solves the technical bottlenecks of weak bonding between ceramic and metal interfaces and uneven particle distribution through multiple technological couplings. The prepared grinding roller possesses both ultra-high wear resistance and excellent impact resistance (impact toughness AKU>30 J in the transition zone), with a uniform, dense, and defect-free microstructure, and a service life more than three times that of traditional high-chromium cast iron grinding rollers.
Owner:YIYANG JINNENG NEW MATERIAL

A compound preparation with the effect of improving blood deficiency

PendingCN122515451AImprove symptoms of Qi and blood deficiencyPromote digestion and absorption
The application provides a compound preparation with the effect of improving qi-blood deficiency, and relates to the technical field of health-care functional food. The compound preparation with the effect of improving qi-blood deficiency is composed of the following raw materials in percentage by weight: birch water 30-50%, red ginseng and donkey-hide gelatin fermentation liquor 20-35%, fructooligosaccharide 5-10%, black medlar original syrup 3-8%, honey 2-6%, hawthorn concentrated juice 1-4%, blood protein polypeptide 0.5-2%, ferrous glycinate 0.1-0.5%, donkey-hide gelatin protein peptide powder 0.5-2%, white tomato concentrated powder 0.3-1%, golden topped shiitake concentrated powder 0.3-1%, snow lotus culture 0.1-0.5%, oyster peptide powder 0.2-0.8% and sea cucumber peptide powder 0.2-0.8%. The application improves the bioavailability of effective components through probiotic fermentation technology, directly supplements hematopoietic raw materials, realizes the synchronization of qi and blood supplement, the combination of conditioning and supplement, and can quickly and comprehensively improve the symptoms of qi-blood deficiency.
Owner:ZHEJIANG SHUANGYINGZHIJIA HEALTH MANAGEMENT CO LTD

High-heat-conductivity low-oil-permeability bio-based heat-conducting interface material and preparation method thereof

The invention discloses a high-heat-conductivity low-oil-permeability bio-based heat-conducting interface material and a preparation method thereof. The material takes an organosilicon polymer as a matrix and takes 260-320 parts by weight of a composite heat-conducting filler as a main body; the composite filler comprises modified egg shell powder, spherical aluminum oxide and flaky boron nitride, and the mass ratio of the modified egg shell powder to the spherical aluminum oxide to the flaky boron nitride is (30-50): (40-60): (5-15); the modified egg shell powder is prepared by calcining and treating with a silane coupling agent, and the surface water contact angle of the modified egg shell powder is greater than 90 degrees. The preparation method adopts a three-section dispersion and auxiliary agent pre-dilution process. Through the super-hydrophobic surface oil locking mechanism of the modified eggshell powder, the material has the synergistic performance of high thermal conductivity and ultralow oil permeability, and the problem of long-term reliability of heat dissipation of high-power electronic devices is solved.
Owner:ZHEJIANG RUI SILICON SOURCE TECHNOLOGY CO LTD

An electric bicycle battery swap cabinet site selection suitability evaluation method based on multi-factor fusion

PendingCN122509462ARealize the whole process automationImprove site selection efficiency
The application discloses a kind of based on multi-factor fusion's electric bicycle battery swap cabinet site selection suitability evaluation method, belong to urban traffic supporting facilities site selection technical field.For the problem that existing battery swap cabinet site selection lacks quantitative analysis, low degree of automation, the application fuses analytic hierarchy process AHP, geographic information system GIS, preference order structure evaluation method PROMETHEE and Python-ArcPy technology, first constructs construction, traffic, ecological three-dimensional index system, and determines the index weight by AHP;Then realize data cleaning, differential normalization and weighted superposition automatic calculation using Python-ArcPy, output comprehensive score;Again, extract high suitable area as candidate point by GIS;Finally, calculate net flow value ranking using PROMETHEE method, combined with service radius and field research screening optimal point.The application realizes site selection whole process automation and spatial visualization, significantly improves evaluation efficiency and accuracy, and can be popularized to similar new energy supporting facilities planning.
Owner:NANTONG UNIV

Aluminum alloy additive manufacturing strengthening and toughening method combining ultrasonic peening and heat treatment

The invention discloses an aluminum alloy additive manufacturing strengthening and toughening method combining ultrasonic peening and heat treatment, and belongs to the technical field of metal additive manufacturing aftertreatment. The method sequentially comprises the following steps that firstly, a CMT technology is adopted, 7000 series aluminum alloy serves as a base plate, and aluminum-lithium alloy welding wires serve as filling materials for additive manufacturing; secondly, the surface of the manufactured part is subjected to ultrasonic impact treatment; and then, solution treatment and aging treatment are carried out. According to the method, through organic combination and sequential cooperation of the three processes, the technical problems that due to rapid cooling, residual stress is large, dispersed phase distribution is uneven, and obdurability and toughness are difficult to consider are effectively solved, the comprehensive performance of the material can be remarkably improved, the tensile strength is improved by 282.7% or above, and the service life of the material is prolonged. The elongation after fracture is improved by 543.5% or above, and the aluminum alloy is particularly suitable for preparing high-performance aluminum alloy components in the fields of aerospace and the like.
Owner:HENAN UNIV OF SCI & TECH