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Highly efficient oligosaccharide high yielded enzyme composite animal microecological formulation without public hazard and its preparing method
InactiveCN1653932AHigh activityStrong ColonizationAnimal feeding stuffAccessory food factorsBacillus licheniformisCandida tropicalis
The composite microecological animal preparation consists of Bacillus cereus 10-15 wt%, Bacillus subtilis 10-15 wt%, Bacillus licheniformis 10-15 wt%, Saccharomyces cerevisiae 1-5 wt%, Candida Tropicalis 1-5 wt%, photosynthetic bacterium 1-5 wt%, plant lactobacillus 0.5-3 wt%, acidophilic lactobacillus 0.5-3 wt%, ephebic bifidobacterium 1-3 wt%, Aspergillus niger 0.5-3 wt%, Aspergillus oryzae 0.5-3 wt%, viridin 0.5-3 wt%, oligosaccharide 5-10 wt% and carrier 30-50 wt%. Its preparation process includes the following steps: 1) high temperature resisting domestication of the said strain, drug resisting domestication, preservation and strain passage; 2) activating the preserved strain, fermentation, coating with microcapsule and drying; and 3) crushing dried strain, and mixing with oligosaccharide and carrier. The present invention is one kind of high efficiency green feed additive.
Owner:宝鸡市星星协力生物有限公司
Optical fiber vibrating sensor and power transmission line aeolian vibration monitoring system applying the same
ActiveCN103925984AGood for long-term monitoringLow costSubsonic/sonic/ultrasonic wave measurementUsing wave/particle radiation meansFiberEngineering
The invention relates to an optical fiber vibrating sensor and a power transmission line aeolian vibration monitoring system applying the same. The optical fiber vibrating sensor comprises a fixed body, a constant-strength beam and a contact body arranged on a lead wire, wherein the fixed body, the constant-strength beam and the contact body are connected in sequence. The fixed body is connected with the lead wire through a clamp arranged on the lead wire, and the upper and lower surfaces perpendicular to the axis of the constant-strength beam are symmetrically provided with fiber bragg gratings. The sensor is installed by adopting an upright method of hull section construction, and an installing point is a fatigue dangerous point of a ground conductive wire. The monitoring system comprises the optical fiber vibrating sensor, an optical fiber composite overhead ground wire, a wave-length adjusting device and a host machine which are connected in sequence. The sensor and the monitoring system have the advantages of being high in measuring accuracy, high in speed, good in frequency response, stable in long-term performance and the like, the problem that the prior art susceptible to influence of complicated electromagnetic environment, measuring accuracy, poor flexible, large size and poor system stability, cannot achieve field information transfer in real time and the like is solved, and the stability and reliability of the system are improved.
Owner:STATE GRID CORP OF CHINA +1
High-flow-degree blow-reclamation sea mud anti-seepage curing material and preparation method thereof
ActiveCN106242482AImprove mechanical propertiesGood shrinkage performanceFoundation engineeringMass ratioSodium silicate
The invention discloses a high-flow-degree blow-reclamation sea mud anti-seepage curing material and a preparation method thereof. The material includes a component A and a component B, wherein the component A comprises 30-60 parts of active inorganic minerals, 10-30 parts of a cementing material, 10-20 parts of gypsum, 5-12 parts of quick-dissolving sodium silicate, 2-5 parts of quick lime and 1-3 parts of a stabilizing agent, and the component B is one selected from or is a mixture composed of blow-reclamation sea sand and sea mud, wherein the granular size of the component B is not more than 5 mm, the dry mass ratio of the component A to the component B is 1-5:1, and water cement ratio is 0.2-0.5. The material is prepared from easy-to-obtain raw materials and is easy and convenient to prepare, is low in cost and is suitable for large-scale application. The anti-seepage curing material has excellent mechanical performance, good dry shrinkage property, low anti-seepage coefficient and good anti-erosion performance, high grouting flowability and excellent groutability, and has very wide application prospect in the fields of curtain grouting, coastal dam anti-seepage engineering and the like.
Owner:GEZHOUBA ZHONGGU TECH CO LTD
Manganese dioxide reference electrode
The present invention belongs to the technical field of cathode corrosion prevention and relates to a manganese dioxide reference electrode applied to concrete for preventing corrosion of metal material. A body structure comprises a sealing adhesive tape, a concrete semi-permeable membrane, a piece of alkali-resistant tissue paper, manganese rings, a steel current collector cylinder and a wire, wherein the wire is welded to one end of the steel current collector cylinder; two manganese rings are respectively thrust into the steel current collector cylinder; the concrete semi-permeable membrane is winded by the alkali-resistant paper by the front end and then tenderly thrust into the steel current collector cylinder; the alkali-resistant paper contacts with the two manganese rings; the body structure of the reference electrode is sealed with the sealing adhesive tape and one end of the concrete semi-permeable membrane is made to contact with the outside, thereby an integral manganese dioxide reference electrode, which has a firm structure and can bear fairly large external stresses, is formed. Due to the semi-permeable membrane, the part of the electrode touching the concrete has similar thermal expansion coefficient with the concrete, so the electrode, unlike ceramics, has no integration loose problem between the concrete and has much more stable potential in long-term use.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
Grouting material for composite structure and fabricated building joint and preparation method thereof
InactiveCN111116132ARealize regionalized commercial supplyWith micro expansionSilicon dioxideUltimate tensile strength
The invention relates to a grouting material for composite structure and prefabricated building node pouring. The grouting material is prepared from, by mass, 30%-40% of cement, 10%-20% of an early-strength mineral admixture, 25%-45% of quartz sand, 5%-15% of a superfine mineral admixture, 0.5%-5% of a composite additive and 5%-10% of fiber, and the superfine mineral admixture is two or three of microbeads, silica fume and nano-silicon dioxide. The composite additive comprises an expanding agent, a retarder, a defoaming agent, a reinforcing agent and a water reducing agent; the fiber is a mixture of steel fibers and organic fibers. The invention also discloses a preparation method of the grouting material, and the method comprises the following steps: mixing the components of the groutingmaterial into a dry mixture, packing and packaging, and the preparation method is simple. The grouting material has the advantages of micro-expansion, high filling property, ultrahigh strength, high ductility and high vibration resistance.
Owner:CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +1
Pipeline joint coating structure
InactiveCN104500916AStay thermoplasticExtended service lifeCorrosion preventionPipe elementsSurface layerLap joint
The invention discloses a pipeline joint coating structure comprising an abutting steel tube (1) and a two-end prefabricated anti-corrosive coating (2). The two-end prefabricated anti-corrosive coating (2) is circularly applied on the outer wall of the abutting steel tube (1). An epoxy primer layer (3) is arranged on the outer wall of a welding joint reserved in the abutting steel tube (1) and is fully covered with a layer of thermoplastic joint sheet (4). Two ends of the thermoplastic joint sheet (4) are in lap joint with two-end prefabricated anti-corrosive coating (2). According to the arrangement, the joint sheet structure is arranged outside the epoxy primer layer and maintains thermoplasticity, thereby completely fused with a surface layer of the two-end prefabricated anti-corrosive coating and the lap joint of the joint sheet; in this way, sealing effect is good, anti-corrosive structure is stable in long-term performance, and service life is long.
Owner:SICHUAN KINGFA TECH DEV
Polarizer outside protection film, polarizing plate and liquid crystal display element
InactiveCN101793980AExcellent adhesionHigh strengthLayered productsPolarising elementsCelluloseAcrylic resin
The objective of the present invention is to provide a novel polarizer outside protection film having high transparency, configured to the exterior face side of the liquid crystal display element and which easy bonding processing to the polarizer element composed of polyvinyl alcohol has been performed to; a polarizing plate having the polarizer outside protection film; and a liquid crystal display element with the polarizing plate. The inventive polarizer outside protection film is configured at the exterior face side of the liquid crystal display element, characterized in that it has a substrate layer made of lucite, and a cellulose ester surface treatment layer formed on the inner face side of the substrate layer. The cellulose ester surface treatment layer is formed by contacting the surface processing agent containing cellulose ester and solvent with the inner face of the substrate layer. The synthetic resin constituting the substrate layer is selected from at least one kind of acrylic acid resin, polycarbonate resin, polypropylene resin, cycloolefin resin and polyethylene terephthalate resin.
Owner:JIRO CORP PLAN
Expansive soil composite roadbed structure pattern and construction method thereof
ActiveCN111622040AImprove stabilityGuarantee long-term stable performanceRoadwaysClimate change adaptationSoil sciencePolluted environment
The invention discloses an expansive soil composite roadbed structure pattern and a construction method thereof. The expansive soil composite roadbed structure pattern comprises a bottom isolation layer, an expansive soil core filling area, an edge reinforcement and seepage prevention area, a geocell protection area, an upper embankment, a roadbed and a pavement structure layer. The expansive soilcomposite roadbed disclosed by the invention can form a closed waterproof or water-blocking system, external water is prevented from infiltrating into the expansive soil core filling area, the expansive soil core filling area is stable in humidity, and long-term performance stability of the expansive soil roadbed is guaranteed. Meanwhile, the roadbed structure pattern not only can utilize expansive soil along the line as a roadbed filler to the maximum extent, but also can overcome the defects that no available edge covering soil source exists around and chemical improvement pollutes the environment, and conforms to the ecological environmental protection concept.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT
0-3 type PZT-steel slag piezoelectric composite material
InactiveCN109369144ALong-term stable performanceImprove mechanical propertiesSlagPiezoelectric composite
The invention belongs to the field of intelligent materials of civil engineering and in particular relates to a 0-3 type PZT-steel slag piezoelectric composite material. The 0-3 type PZT-steel slag piezoelectric composite material is prepared from the following components in parts by weight: 22 to 30 parts of steel slag, 55 to 65 parts of PZT and 12 to 17 parts of water. The steel slag is carbonized and hardened to form a piezoelectric composite material matrix; the dispersion of a piezoelectric phase in the matrix is improved by utilizing a powder pre-mixing, pressing and molding mode; meanwhile, the carbonized steel slag has high mechanical strength and is rapidly developed; the matrix has high compactness, mechanical properties and durability; the matching degree of the mechanical properties of the carbonized steel slag matrix and the piezoelectric phase is high and the performance of the composite material is stable for a long period; 2) a preparation method provided by the invention has a simple and controllable technology and the prepared 0-3 type PZT-steel slag piezoelectric composite material has the advantages of excellent piezoelectric and mechanical properties, high durability, high controllable degree, low cost and the like.
Owner:WUHAN UNIV OF TECH
No-baking light foamed heat insulating and sound isolating material and its production process
InactiveCN1887783AHigh potential activityHydraulically hardSolid waste managementCeramicwareHigh activityUltimate tensile strength
The present invention is one kind of no-baking light foamed heat insulating and sound isolating material and its production process. The no-baking light foamed heat insulating and sound isolating material has high activity fly ash, which is produced based on one other patent of the present inventor, as basic material and some other components. It has high water resistance, high strength, high fireproof performance and high stability.
Owner:郑东风
Vegetation rod for desert planting as well as manufacturing process and use method thereof
ActiveCN105191776AStay hydratedGuaranteed firmnessAgriculture gas emission reductionCultivating equipmentsVegetationWater storage
The invention discloses a vegetation rod for desert planting as well as a manufacturing process and a use method thereof. The vegetation rod is internally provided with a water storage layer, so as to ensure the moisture during a growth process of plant seeds in the vegetation rod, and the moisture is buried at the bottom of a moving dune so as to prevent the movement of the moving dune and ensure the firmness of the moving dune; after irrigation, re-irrigation is not needed, and the plant seeds in the vegetation rod germinate and grow so as to break through a non-woven fabric at an outer layer and then grow out of the surface of the dune, so that desert planting is realized, layout is easy to implement, manpower and material resources are saved, ecological and economic benefits can be achieved stably for a long term, ecological restoration and ecological construction are quickened, and the vegetation rod has favorable application prospect.
Owner:JIANGSU LVYAN ECOLOGY TECH CO LTD
High fluidity dredging sea mud anti-seepage solidification material and preparation method thereof
ActiveCN106242482BImprove mechanical propertiesGood shrinkage performanceFoundation engineeringSodium silicateGypsum
The invention discloses a high-flow-degree blow-reclamation sea mud anti-seepage curing material and a preparation method thereof. The material includes a component A and a component B, wherein the component A comprises 30-60 parts of active inorganic minerals, 10-30 parts of a cementing material, 10-20 parts of gypsum, 5-12 parts of quick-dissolving sodium silicate, 2-5 parts of quick lime and 1-3 parts of a stabilizing agent, and the component B is one selected from or is a mixture composed of blow-reclamation sea sand and sea mud, wherein the granular size of the component B is not more than 5 mm, the dry mass ratio of the component A to the component B is 1-5:1, and water cement ratio is 0.2-0.5. The material is prepared from easy-to-obtain raw materials and is easy and convenient to prepare, is low in cost and is suitable for large-scale application. The anti-seepage curing material has excellent mechanical performance, good dry shrinkage property, low anti-seepage coefficient and good anti-erosion performance, high grouting flowability and excellent groutability, and has very wide application prospect in the fields of curtain grouting, coastal dam anti-seepage engineering and the like.
Owner:GEZHOUBA ZHONGGU TECH CO LTD
Side-chain amphoteric structure polyarylethersulfone, preparation method thereof and homogeneous amphoteric ion exchange film
ActiveCN111533913AEnhanced inhibitory effectEasy to separateMembranesSemi-permeable membranesIon-exchange membranesSide chain
The invention discloses side-chain amphoteric polyarylethersulfone, a preparation method thereof and a homogeneous amphoteric ion exchange film. The side chain type amphoteric structure polyarylethersulfone is composed of the following four kinds of repetitive structural units which are arranged randomly: a repetitive structural unit A, a repetitive structural unit B, a repetitive structural unitC and a repetitive structural unit D, the number-average molecular weight Mn of the side-chain amphoteric polyarylethersulfone is 50000-100000, and the number of the four repetitive structural units in the structure satisfies the following conditions: (a + b): (c + d) = 50-0%: 50-100%, and (a + c): (b + d) = 0-15%: 100-85%; the homogeneous side chain type amphoteric ion exchange film provided by the invention is a sodium type film prepared from polyarylethersulfone with a side chain type amphoteric structure, and then the sodium type is converted into an acid type. The ion exchange film has the advantages of low surface resistance, high ion conductivity, high mechanical property, good chemical stability, high monovalent anion selectivity, high monovalent anion flux and the like.
Owner:ZHEJIANG UNIV OF TECH
Organic modified cement based patch mortar
The invention discloses organic modified cement based patch mortar. The organic modified cement based patch mortar is prepared from the following raw materials in parts by mass: 100-200 parts of rapid-hardened sulfo-aluminate cement, 20-50 parts of silicate cement, 20-50 parts of limestone flour, 5-30 parts of ultrafine mineral powder, 150-400 parts of nano attapulgite, 2-5 parts of expansion agent, 70-150 parts of cationic emulsified asphalt, 0.06-0.1 part of antifoamer, 0.6-2 parts of water reducing agent, 200-600 parts of sand and 100-150 parts of water. The patch mortar disclosed by the invention is high in mechanical properties, good in impermeability and low in whole mortar shrinkage and has good compatibility with a cement matrix, the raw materials are cheap and readily-available, and the cost is relatively low, so that the patch mortar is suitable for being popularized in large scale.
Owner:UNIV OF JINAN
Probiotic gel for recovering and stabilizing vaginal microbial florae, and preparation method thereof
PendingCN113181345AGood colonization effectGood effect on colonizationAntibacterial agentsAntimycoticsLactobacillus acidophilusLactobacillus acidipiscis
The invention belongs to the field of microbial products, and relates to a gel for female private parts, and concretely relates to a probiotic gel for recovering and stabilizing vaginal microbial florae, and a preparation method thereof. The probiotic gel comprises, by weight, 0.5 to 1.0 percent of carbomer U20, 0.5 to 2.0 percent of hyaluronic acid, 0.3 to 1.0 percent of recombinant human collagen, 0.5 to 2.0 percent of propylene glycol, 1 to 2 percent of bifidobacterium lysate liposome freeze-dried powder, 0.1 to 1.0 percent of lactobacillus fermentum, 0.1 to 1 percent of lactobacillus reuteri, 0.1 to 1.0 percent of lactobacillus rhamnosus, 0.1 to 1 percent of lactobacillus acidophilus, 0.01 to 0.1 percent of mint extract, 0.004 to 0.02 percent of antibacterial peptide, and the balance of purified water. By adding the bifidobacterium lysate, the lysate has a good effect on killing pathogenic bacteria and can stably play a role for a long time; and by adding the recombinant human collagen, the collagen has a good effect in promoting colonization of the probiotics, so that the probiotics can better tolerate inflammatory stress and survive.
Owner:济南万泉生物技术有限公司
Manganese dioxide reference electrode
The invention belongs to the technical field of cathodic protection for corrosion and protection, and relates to a manganese dioxide reference electrode used in concrete to prevent corrosion of metal materials. The main structure includes sealing tape, concrete semi-permeable membrane, alkali-resistant tissue paper, manganese ring, Collector steel cylinder and wire, the wire is welded at one end of the collector steel cylinder, push the two manganese rings into the collector steel cylinder respectively, wrap the front end of the concrete semi-permeable membrane with alkali-resistant cotton paper and gently push it into the collector steel cylinder Inside, the alkali-resistant cotton paper is in contact with the two manganese rings, the main structure of the reference electrode is sealed with a sealing tape and one end of the concrete semi-permeable membrane is in contact with the outside to form an integrated structure of the manganese dioxide reference electrode. The structure is strong and can withstand large external pressure, etc.; the semi-permeable membrane material makes the thermal expansion and contraction coefficient of the part in contact with the concrete similar to that of the concrete, which will not cause loosening of the bond between the ceramic and the concrete, making the electrode's Potentials are much more stable in long-term performance.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
A structure type of expansive soil composite subgrade and its construction method
ActiveCN111622040BPrevention of uneven settlement deformationImprove performanceRoadwaysClimate change adaptationSoil scienceGeocells
The invention discloses an expansive soil composite roadbed structure type and a construction method thereof. The expansive soil composite roadbed structure type includes a bottom isolation layer, an expansive soil core filling area, side reinforcement and anti-seepage areas, a geocell protection area, and an upper road Embankment, road bed, pavement structure layer. The expansive soil composite roadbed of the present invention can form a closed water-proof or water-blocking system, avoid external moisture from infiltrating the expansive soil core-filling area, ensure stable humidity in the expansive soil core-filling area, and ensure long-term performance stability of the expansive soil roadbed. At the same time, the The roadbed structure type can not only maximize the use of expansive soil along the line as roadbed filler, but also make up for the disadvantages of no available edge-wrapped soil source and chemical improvement to pollute the environment, which is in line with the concept of ecological and environmental protection.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT
Method for preparing efficient aerated mixed powder
The invention relates to a method for preparing efficient aerated mixed powder of an AgSnO2 wire. The method comprises the steps as follows: aluminium powder and putty powder are placed into a mixing pot and stirred to obtain mixed powder; then the mixed powder is sucked into an efficient powder-mixing machine for mixing; then the mixed powder is placed into a cold isostatic press for compression moulding; the pressed mixture is taken out and placed into a vacuum sintering furnace for vacuum sintering; the sintered mixture is placed into an extruder for extruding, and then the mixture is placed into an ultrasonic washing machine for washing filaments on the surface of the mixture; and the mixture is subjected to vacuum annealing, finally the final reactant is subjected to wire-drawing through a wire-drawing device, and a finished product with the required diameter is obtained. The method solves the problems of aluminium powder agglomeration and putty powder agglomeration as well as hardness and density of the AgSnO2; the long-term performance of the finished product is stable, and the plasticity and the performance of the material are improved.
Owner:WENZHOU JUXING ELECTRIC CONTACT TECH
High-performance silicon-carbon negative electrode material and preparation method thereof
InactiveCN113241427AIncrease capacityIncrease gram capacityMaterial nanotechnologyCell electrodesCarbon coatingEtching
Owner:HEFEI GUOXUAN HIGH TECH POWER ENERGY
No-baking light foamed heat insulating and sound isolating material and its production process
InactiveCN100384771CHigh potential activityHydraulically hardSolid waste managementCeramicwareHigh activityUltimate tensile strength
The present invention is one kind of no-baking light foamed heat insulating and sound isolating material and its production process. The no-baking light foamed heat insulating and sound isolating material has high activity fly ash, which is produced based on one other patent of the present inventor, as basic material and some other components. It has high water resistance, high strength, high fireproof performance and high stability.
Owner:郑东风
Method and device for safety monitoring of small and medium-span prefabricated bridges
ActiveCN111678548BGuaranteed reliabilityGuaranteed validityMeasurement devicesMonitoring siteCorrelation coefficient
The invention relates to a safety monitoring method and device for an assembled bridge with a small and medium-sized span, belongs to the technical field of bridge monitoring, and solves the problems in the prior art that the monitoring indicators are not well targeted and the monitoring cost is high. The method includes selecting the first monitoring point, the second monitoring point and the third monitoring point of the bridge to be monitored; respectively measuring and obtaining the strain data at the first monitoring point, the deflection data at the second monitoring point and the Acceleration data, and obtain the transverse correlation coefficient of the adjacent two girders of the bridge to be monitored based on the measured strain data, and obtain the natural frequency of the bridge to be monitored based on the measured acceleration data; the obtained strain The data, deflection data, transverse correlation coefficient or natural frequency are compared with the corresponding preset thresholds to obtain the safety monitoring results of the bridge to be monitored. This method proposes a complete monitoring system for small and medium-span prefabricated bridges, which improves monitoring accuracy and effectiveness while reducing monitoring costs.
Owner:HEBEI PROVINCIAL COMM PLANNING & DESIGN INST +1
A kind of magnesium gel material, preparation method and application for preparing glass magnesium plate
The invention discloses a magnesium gel material, a preparation method and an application for preparing a glass magnesium plate. The phenolic resin foamed glass magnesium plate includes magnesium cement and foamed phenolic resin, and the foamed phenolic resin includes phenolic resin, foamed Foaming agent, catalyst and toughening agent. During preparation, mix phenolic resin, foaming agent, catalyst and toughening agent, keep warm at 50-70°C for 2-4 hours, add magnesia cement slurry and mix; Then maintain under natural conditions until the moisture content meets the requirements, and the glass magnesium plate is obtained. The present invention mixes the foamed phenolic resin with magnesium cement, utilizes the water resistance, cohesive force and fire resistance of the phenolic resin itself, makes the internal structure of the magnesium cement more dense, and greatly improves the water resistance and water resistance of the glass magnesium plate. Crack and fire resistance, long-term stable performance, can meet all the current performance requirements for glass magnesium panels for flue and exhaust ducts.
Owner:陕西维安建筑科技有限公司
A high-strength pavement functional material for laying stress-absorbing belts
ActiveCN104629387BWide variety of sourcesLong-term stable performanceIn situ pavingsBuilding insulationsFiberPavement engineering
The invention belongs to the technical field of pavement material engineering, and particularly discloses a high-strength pavement functional material for laying a stress absorption band. The material is prepared from the following raw materials in parts by weight: 100 parts of asphalt, 6-12 parts of thermoplastic styrene-butadiene rubber (SBS), 0.5-1.5 parts of polyphenylether, 20-30 parts of epoxidized natural rubber and 3-5 parts of fiber. The high-strength pavement functional material has the advantages of high tensile strength, favorable bonding power with the pavement structural layer, temperature change resistance, simple construction process and the like, has favorable effects for treating old cement concrete pavement cracks and asphalt pavement cracks and preventing crack reflection when being used in cement concrete pavement modification combined pavement engineering and asphalt pavement laying engineering, and has important meanings for enhancing the service life and roadability of the combined pavement.
Owner:SHANXI PROVINCIAL RES INST OF COMM +1
Hydrogen palladium electrode electrochemical oxygen sensor
ActiveCN105203608BLong-term stable performanceDoes not change the PH valueMaterial electrochemical variablesElectrode potentialElectrolysis
The present invention relates to an electrochemical oxygen sensor, in particular to a hydrogen palladium electrode electrochemical oxygen sensor, comprising a hollow shell, an electrode base is sealed and installed on the upper end of the shell, an oxygen permeable film is covered on the lower end of the shell, and the electrode base A coaxial cylindrical double electrode body is arranged between the oxygen permeable membrane. The outer layer of the cylindrical double electrode is a hydrogen palladium electrode as an anode, the middle layer is glass as an insulating layer, and the inner layer is a platinum electrode as a cathode; The working end surface of the electrode body is in contact with the oxygen-permeable membrane; the electrolytic chamber between the shell and the cylindrical double-electrode body and between the electrode base and the oxygen-permeable membrane is filled with a gel electrolyte, which includes the following proportional weight The combination of parts: 70-79 parts by weight of potassium chloride, 4-5 parts by weight of agar, and 1000 parts by weight of water. The metal electrode of the sensor does not participate in the electrochemical reaction, and the reaction product is water, no metal precipitation, no coating shedding, long-term stability of the electrode potential, longer life of the oxygen sensor, and superior long-term stability.
Owner:SCI RES TRAINING CENT FOR CHINESE ASTRONAUTS
Robot joint zero point automatic calibration end effector and method thereof
ActiveCN106610267BHigh control precisionReduce machining accuracyUsing optical meansEngineeringDistance sensors
Owner:COMAU KUNSHAN AUTOMATION
A planting stick used for desert overplanting and its manufacturing process and use method
ActiveCN105191776BStay hydratedGuaranteed firmnessAgriculture gas emission reductionCultivating equipmentsWater storageVegetation
Owner:JIANGSU LVYAN ECOLOGY TECH CO LTD
Optical Fiber Vibration Sensor and Breeze Vibration Monitoring System for Transmission Line Using It
ActiveCN103925984BGood for long-term monitoringLow costSubsonic/sonic/ultrasonic wave measurementUsing wave/particle radiation meansFiberWavelength
The invention relates to an optical fiber vibrating sensor and a power transmission line aeolian vibration monitoring system applying the same. The optical fiber vibrating sensor comprises a fixed body, a constant-strength beam and a contact body arranged on a lead wire, wherein the fixed body, the constant-strength beam and the contact body are connected in sequence. The fixed body is connected with the lead wire through a clamp arranged on the lead wire, and the upper and lower surfaces perpendicular to the axis of the constant-strength beam are symmetrically provided with fiber bragg gratings. The sensor is installed by adopting an upright method of hull section construction, and an installing point is a fatigue dangerous point of a ground conductive wire. The monitoring system comprises the optical fiber vibrating sensor, an optical fiber composite overhead ground wire, a wave-length adjusting device and a host machine which are connected in sequence. The sensor and the monitoring system have the advantages of being high in measuring accuracy, high in speed, good in frequency response, stable in long-term performance and the like, the problem that the prior art susceptible to influence of complicated electromagnetic environment, measuring accuracy, poor flexible, large size and poor system stability, cannot achieve field information transfer in real time and the like is solved, and the stability and reliability of the system are improved.
Owner:STATE GRID CORP OF CHINA +1
A kind of organically modified cement-based repair mortar
The invention discloses organic modified cement based patch mortar. The organic modified cement based patch mortar is prepared from the following raw materials in parts by mass: 100-200 parts of rapid-hardened sulfo-aluminate cement, 20-50 parts of silicate cement, 20-50 parts of limestone flour, 5-30 parts of ultrafine mineral powder, 150-400 parts of nano attapulgite, 2-5 parts of expansion agent, 70-150 parts of cationic emulsified asphalt, 0.06-0.1 part of antifoamer, 0.6-2 parts of water reducing agent, 200-600 parts of sand and 100-150 parts of water. The patch mortar disclosed by the invention is high in mechanical properties, good in impermeability and low in whole mortar shrinkage and has good compatibility with a cement matrix, the raw materials are cheap and readily-available, and the cost is relatively low, so that the patch mortar is suitable for being popularized in large scale.
Owner:UNIV OF JINAN
Catalyst for preparing vinyl chloride and preparation method thereof
ActiveCN112517083AAdverse phenomena that affect performanceGood catalyticPreparation by halogen halide additionOrganic-compounds/hydrides/coordination-complexes catalystsActivated carbonPtru catalyst
The invention provides a catalyst for preparing vinyl chloride and a preparation method of the catalyst. The preparation method comprises the following steps of: preparation of silicon dioxide sol, treatment of activated carbon, absorption, modification forming, loading and activation. The catalyst has the beneficial effects that: the optimal catalytic effect can be achieved at a temperature of 95-105DEG C, and the low-temperature reaction activity is excellent; by-products can be effectively prevented from influencing the performance of the catalyst; in the process of catalytic preparation ofvinyl chloride by reaction of acetylene and hydrogen chloride, the initial conversion rate of acetylene is greater than 99.3%, and the selectivity of vinyl chloride is greater than 99.5%; the overallcatalytic service life of the catalyst exceeds 15,000 hours, and the requirement of large-scale industrial production can be met.
Owner:李通
Elastic metal slider support
ActiveCN102587499BImprove vertical bearing capacityWith high temperature resistanceShock proofingEngineeringSlide plate
The invention relates to an elastic metal slider support, which comprises a lower embedded plate, a base, an upper embedded plate, a top plate and an elastic metal layer. The lower embedded plate is disposed at the bottom, the base is fixed on the upper surface of the lower embedded plate through bolts, a stainless steel plate is welded on the base, the upper embedded plate is disposed at the top, the top plate is fixed on the lower surface of the upper embedded plate through bolts, the bottom of the top plate is provided with a recess, the elastic metal layer is inserted in the recess and disposed on the base, the elastic metal layer is composed of a metal spring pad and a polytetrafluoroethylene plastic layer, the stainless steel plate and the metal elastic layer form a friction pair, and accordingly the requirement that a superstructure of the elastic metal slider support slides relative to an understructure of the elastic metal slider support in case of an earthquake or big wind. Compared with the prior art, the elastic metal slider support has the advantages of high vertical bearing capacity, high temperature resistance, long-term stable performance and the like.
Owner:SHANGHAI RES INST OF MATERIALS CO LTD
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