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589results about How to "Improve fixation efficiency" patented technology
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Method for improving resolving success rate of medium and long baseline GPS integral cycle fuzziness
ActiveCN105842721AImprove fixation efficiencyQuick solveSatellite radio beaconingKaiman filterDouble difference
The invention provides a method for improving resolving success rate of medium and long baseline GPS integral cycle fuzziness, and aims to provide a method with advantages of high fuzziness real solution precision and high success rate. The method is realized through a technical solution which is characterized in that the method comprises the steps of setting an elevation mask angle by means of monitoring and measuring software, acquiring rough coordinates of a main measurement station and an auxiliary measurement station, and extracting useful observation data; selecting a reference satellite, comparing observation data of the main measurement state with the observation data of the auxiliary measurement station, establishing a double-difference observation equation by means of the observation data of the main measurement station and the auxiliary measurement station, performing state updating and parameter estimation on an observed equation by means of a Kalman filter, and solving a fuzziness float solution; then, converting the fuzziness float solutions of GPS double-difference carrier L1 and L2, and forming a vector set which comprises a wide lane integral cycle fuzziness and a carrier L1 fuzziness; searching the wide lane integral cycle fuzziness by means of a LAMBDA algorithm, obtaining the integer solution of the wide lane integral cycle fuzziness after fixation, and finally determining the success rate of the resolved fuzziness through a preset threshold, and confirming a correctly resolved integral cycle fuzziness.
Owner:10TH RES INST OF CETC
Paraffin sectioning method for eucalyptus tissue
InactiveCN105973673AStrong penetrationFixed fastPreparing sample for investigationParaffin waxDyeing
The invention belongs to the technical field of plant microscopic observation and discloses a paraffin sectioning method for eucalyptus tissue. The method comprises the steps of preparing materials, fixing, washing, dehydrating, performing a transparency treatment, waxing, embedding, sectioning, displaying the sections, adhering the sections, roasting the sections, dewaxing and rehydrating, dyeing, dehydrating, redyeing and enclosing the sections. According to the paraffin sectioning method for the eucalyptus tissue, utilized novel stationary liquid polyhydroxyl acrylic acid has high speed, can largely shorten the fixing time and can balance the fixing; meanwhile, xylene replaces with a safe and nontoxic TO transparent reagent, the TO transparent agent can be solved with alcohol of 95% at 25 DEG C or above, can solve paraffin and sealed vegetable glue, has excellent volatility without bad influence on dyeing of common biological dye, and has relatively better transparency and dewaxing effects, and after the transparency treatment is performed, the tissue is unlikely to embrittle, the sections can keep complete; furthermore, neutral vegetable glue replaces with a section sealing agent CVmount. After the fixing, dehydrating and section sealing steps during optimization of paraffin sections are performed, the section production cycle is shortened by at least 72 hours on the premise of ensuring the sectioning effect.
Owner:RES INST OF TROPICAL FORESTRY CHINESE ACAD OF FORESTRY
Method for producing microalgal oil by using flue gas
ActiveCN105713950AImprove fixation efficiencyPromote rapid growthMicroorganism based processesFermentationLaboratory culturePhotobioreactor
The invention discloses a method for producing microalgal oil by using flue gas, wherein the method includes the steps: (1) adding a microalgae culture medium and a scenedesmus obliquus FSH-Y2 seed liquid into a photobioreactor, regulating the pH of the culture system to 10-12, introducing flue gas with the CO2 volume content of 1 v%-5 v%, and culturing for 2-5 days; and (2) regulating the pH value of the culture system to 8-10, inoculating with monoraphidium sp. SS-B1 and ankistrodesmus sp. SS-B7 seed liquids, carrying out mixed culture, introducing flue gas with the CO2 volume content of 5 v%-45 v%, culturing to a stable stage under continuous illumination, and harvesting microalgae cells, wherein the scenedesmus obliquus FSH-Y2, the monoraphidium sp. SS-B1 and the ankistrodesmus sp. SS-B7 are respectively preserved in China General Microbiological Culture Collection Center on September 11, 2012 and on April 15, 2013 respectively and have the preservation numbers of CGMCC No.6551, CGMCC No.7479 and CGMCC No.7478 respectively. The method improves the tolerance and the solubility of the microalgae culture system on high-concentration CO2, improves the carbon sequestration efficiency, obviously increases the yield of the microalgal oil, and can realize purification of the flue gas.
Owner:CHINA PETROLEUM & CHEM CORP +1
Carrier phase difference positioning method and device and single-frequency receiver
ActiveCN106646565AImprove fixation efficiencyAvoid cycle slip problemSatellite radio beaconingDouble differenceAmbiguity
The invention relates to a carrier phase difference positioning method and device and a single-frequency receiver, and the method comprises the steps: judging whether to carry out the ambiguity search or not according to a preset sampling time interval; substituting a satellite continuous and effective tracking epoch number weight factor, a satellite elevation weight factor and a carrier phase posterior windowing residual error weight factor into a preset ambiguity satellite selection weight factor formula if the ambiguity search is carried out, and calculating a ambiguity satellite selection weight factor; selecting a ambiguity search subset according to the ambiguity satellite selection weight factor; carrying out the ambiguity search through employing an LAMBDA algorithm, and obtaining an ambiguity fixed subset; respectively judging whether the obtained ratio value and DN value are greater than a preset first threshold value and a preset second threshold value or not, and carrying out the ambiguity confirmation of the ambiguity fixed subset; judging whether the number of double-difference ambiguities is greater than or equal to 4 or not if the obtained ratio value and DN value are greater than the preset first threshold value and the preset second threshold value; solving a fixed solution of a base line based on a preset carrier single-difference model if the obtained ratio value and DN value are not greater than the preset first threshold value and the preset second threshold value; and outputting the fixed solution. The method can enable the single-frequency receiver to carry out the RTK high-precision positioning.
Owner:GUANGZHOU HI TARGET SURVEYING INSTRUMENT CO LTD
Soil heavy metal biological fixing agent and application method thereof
ActiveCN103275728ALow costReduce environmental risksAgriculture tools and machinesContaminated soil reclamationSoil heavy metalsNutrient
The invention relates to the technical field of soil conditioners and particularly relates to a soil heavy metal biological fixing agent and an application method thereof. The formula of the soil heavy metal biological fixing agent is that every one kilogram of an organic fertilizer is added with 2-10 g (109 CFU / g) of B. natto solid leavening agent, 2-10 g (109 CFU / g) of B.mucilaginosus solid leavening agent, 2-6 g (109 CFU / g) of B.megaterium solid leavening agent and 4-10 g (1010 CFU / g) of Trichoderma koningii solid leavening agent, wherein the main ingredients of the biological organic fertilizer contain more than 40% of organic matter, more than 20 million / g of effective viable count, and more than 5% of total nutrient. The soil heavy metal biological fixing agent is low in cost, has few environmental risks, remarkably reduces the absorption of the heavy metals of the crops, improves the soil fertility, effectively prevents and cures the soil-borne diseases and increases the economic benefit of the crops.
Owner:DONGGUAN BAODE BIOLOGICAL ENG
Parachlorella kessleri with tolerance to high pH and culture and applications of parachlorella kessleri
ActiveCN106467896AImprove solubilityEasy to fixUnicellular algaeMutant preparationSolubilityMicroorganism
The invention discloses parachlorella kessleri with the tolerance to a high pH and culture and applications of parachlorella kessleri. A parachlorella kessleri mutant strain FSH-Y3 with the tolerance to the high pH is obtained through the method adopting ultraviolet mutagenesis and acclimation screening utilizing step-by-step pH increase, the classification name is Parachlorella Kessleri, and the parachlorella kessleri strain FSH-Y3 is prepared in the China General Microbiological Culture Collection Center (CGMCC) on May 26, 2014, and is assigned with the accession number of CGMCC No.9238. The bred parachlorella kessleri FSH-Y3 can well absorb and utilize carbon dioxide at the high pH, and rapidly grow and reproduce, therefore, the problems that the existing parachlorella kessleri only can grow at the neutral pH, but the solubility of carbon dioxide is low, and the carbon dioxide fixing efficiency is low under the neutral pH condition are solved.
Owner:CHINA PETROLEUM & CHEM CORP +1
Chlorella and application thereof
InactiveCN101824386AImprove fixation efficiencyIncrease productionUnicellular algaeDispersed particle separationBiodieselMicrobiology
The invention discloses a strain of chlorella, which is classified to be named as chlorella vulgaris and is preserved in China Centre for Type Culture Collection, and the preservation number is CCTCC NO.: M 209256. The invention also discloses the application of the chlorella in producing microalgae oil and fixing CO2. The chlorella can endure 24.5% of CO2 concentration, the content of grease can reach 17-31%, and the invention has higher CO2 fixing efficiency than ordinary seawater algae, and can obtain high-yield microalgae oil by selecting appropriate culture conditions, so the culture cost of the microalgae can be greatly reduced, and a good production strain is provided for preparing biodiesel by the microalgae oil.
Owner:NANJING UNIV OF TECH
Freshwater chlorella and application thereof in fixation of CO2 and production of microalgae oil
InactiveCN103215190AGreat application potentialPromote growthUnicellular algaeBiofuelsBiodieselDry weight
The invention provides freshwater chlorella sorokiniana XJ02 and application thereof in fixation of CO2 and production of microalgae oil. The preservation number of the chlorella is CCTCC (China Center For Type Culture Collection) NO: M2013104. The chlorella disclosed by the invention can be used for fixing 0.03-20% of CO2 at high efficiency, the CO2 fixation efficiency of chlorella is 130-343mg / L / d, the biomass (dry weight) concentration of the chlorella is 720-2250mg / L, the oil content of chlorella is 29.2-41%, the oil fatty acid of the chlorella is mainly composed of C16 and C18 short-chain fatty acids, and the chlorella is suitable for production of biodiesel. Compared with the reported microalgae, the chlorella has higher CO2 fixation efficiency and biomass yield; and the chlorella can be used for obtaining the microalgae oil at high yield by selecting an appropriate culture condition, thus the production cost of the microalgae oil can be greatly reduced. An excellent production algae is provided for high-efficient fixation of CO2 in the environment and preparation of biodiesel by the microalgae oil.
Owner:CENT SOUTH UNIV
Rapid fixing method and system of fuzziness between GNSS network RTK reference stations
ActiveCN107607973AImprove computing efficiencyTheoretical rigorSatellite radio beaconingDouble differenceSimulation
The invention discloses a rapid fixing method and system of fuzziness between GNSS network RTK reference stations. The method comprises steps of S1 resolving a double-difference fuzziness floating point solution between the GNSS network RTK reference stations; S2 constructing a virtual indirect adjustment observation model and a constraint according to the double-difference fuzziness floating point solution; S3 using the virtual indirect adjustment observation model and the constraint as an observation equation and a limiting condition in an accompanied limiting condition indirect adjustment model, establishing an indirect adjustment resolving model of an accompanied limiting condition, and resolving an optimal floating point solution of the double-difference fuzziness; and S4 using a least square reduction related adjustment method to carry out searching calculation on the optimal floating point solution of the double-difference fuzziness, and determining the double-difference fuzziness. According to the invention, enclosed constraints of the fuzziness between the reference stations are fully used; the searching range of the fuzziness floating point solution is reduced; and the fuzziness fixing efficiency is improved.
Owner:WUHAN UNIV
Preparation method of three-dimensional biological chip substrate
The invention discloses a preparation method of a three-dimensional biological chip substrate, wherein the biological chip substrate can be made from a glass substrate or a polymer substrate. The preparation method includes following steps: (1) introducing hydroxyl groups onto the surface of the substrate and performing silanization to introduce a double bond; (2) performing ultraviolet light grafting onto the substrate of the double bond-introduced substrate to obtain the substrate having a certain thickness, wherein the surface of the substrate is provided with epoxy groups; (3) adding the treated substrate into a solution containing amino groups to perform a reaction to prepare the substrate of which the surface contains the amino groups. By means of the method, a three-dimensional amino substrate probe is high in fixation amount, is stable in combination, can overcome the defects that a conventional surface modification-silane coupling agent method for preparing a two-dimensional substrate is less in fixation amount, is high in detection limit and is instable in result. The method has a good application prospect in the field of biological chips.
Owner:BEIJING UNIV OF CHEM TECH
Gene chip and method for detecting classical swine fever virus (CSFV), porcine circovirus virus type 2 (PCV-2) and porcine reproductive and respiratory syndrome virus (PRRSV)
InactiveCN102234693AStrong specificityEnsure consistencyMicrobiological testing/measurementFluorescence/phosphorescenceClassical swine fever virus CSFVDisease
The invention provides a gene chip detection method for a classical swine fever virus (CSFV), a porcine circovirus virus type 2 (PCV-2), a porcine reproductive and respiratory syndrome virus Europe type (PRRSVE) and a porcine reproductive and respiratory syndrome virus America type (PRRSVA). A gene chip is shown as a probe sequence in the table of the specification. The invention discloses a method for simultaneously detecting three diseases, namely classical swine fever (CSF), a porcine circovirus type 2 (PCV-2) and a porcine reproductive and respiratory syndrome (PRRS) by using the gene chip. By the method, the problems that the conventional detection technology is time-consuming and labor-consuming and has low specificity, or only can be used for detecting a single disease are solved. All probes provided by the invention are synthesized into a connecting amino group at a 5' end, a poly T connecting arm with the length of 15 bp is provided, and a result shows that fixing efficiency is relatively high. By a polymerase chain reaction (PCR) amplification technology with mark primers, various kinds of fluorescent mark deoxyribonucleic acid (DNA) complementary to corresponding probescan be amplified at a time, and the high specificity and sensitivity of nucleic acid hybridization in a solid-liquid phase can be ensured. In addition, by a mark method, detection time is greatly shortened, the cost of chip detection is lowered, and the detection method is more suitable to be popularized in clinical application.
Owner:CHONGQING UNIV OF TECH
Cable terminal tightening device
ActiveCN106356791AFast fasteningImprove firmnessSuspension arrangements for electric cablesEngineeringMechanical engineering
Owner:GUANGZHOU PANYU CABLE WORKS
Foliar fertilizer used for enhancing photosynthesis of plants, and its preparation method
ActiveCN103819270AAvoid accumulationSolve the problem of poor color and low qualityFertilizer mixturesPhosphateSodium bisulfate
The invention relates to a foliar fertilizer used for enhancing the photosynthesis of plants, and its preparation method. The foliar fertilizer which is a composition comprises a part A and a part B, the part A comprises 1-3% of chitosan, 1-3% of ribulose-1,5-bisphosphate carboxylase, 5% of a surfactant, 1-5% of an antifreeze agent, 5-10% of acetic acid, 10% of ethanol, 0.1-0.2% of a stabilizer, and the balance water, and the pH value of the part A is 4-6; the part B comprises 5-5% of sodium bisulfate, 5-10% of biochemical fulvic acid, 1-5% of the antifreeze agent, 5% of the surfactant, 5-10% of potassium dihydrogen phosphate, 5-10% of urea, 1-3% of magnesium sulfate, 0.1-0.2% of a stabilizer, and the balance water, and the pH value of the part B is 7-8; a ratio of the part A to the part B is 1:1; and materials of the part A and materials of the part B are uniformly stirred and mixed at normal temperature to form the composition, and the composition is diluted to 1000-2000 times aqueous solution spray when the composition is used. The foliar fertilizer can effectively solve the problems of bad color and low quality caused by possible-meeting of bad natural environment after too late bag removal of bagged apples.
Owner:SHAANXI PUCHENG MEIERGUO AGROCHEM
Label fixing device of automatic Pu'er tea cake press
ActiveCN105711916AQuality is not affectedImprove fixation efficiencyPre-extraction tea treatmentFood shapingEngineeringTea leaf
A label fixing device of an automatic Pu'er tea cake press is arranged above a rotary disc of a preliminary pressing device. The label fixing device comprises a lifting mechanism, a label suction mechanism and a tea grabbing mechanism. The label suction mechanism and the tea grabbing mechanism are both arranged on the lifting mechanism. The tea grabbing mechanism comprises a finger air cylinder. The finger air cylinder is arranged above lower dies of the preliminary pressing device. The label suction mechanism comprises a label suction cup used for sucking labels and a first rotary air cylinder enabling the label suction cup to be transferred to the position above the lower dies of the preliminary pressing device. The label suction cup is fixedly connected with the first rotary air cylinder. The label fixing device comprises the tea grabbing mechanism, part of tea is covered with the surfaces of labels, and the labels are firmly pasted to the surfaces of tea cakes, so that the labels are prevented from being damaged or falling off during pressing.
Owner:云南韵和机械科技有限公司 +2
Convenient-to-adjust polishing device for sofa processing
InactiveCN111283519AImprove stabilityEasy to fixGrinding drivesGrinding machinesPolishingElectric machinery
The invention belongs to the technical field of sofa plate polishing, and particularly relates to a convenient-to-adjust polishing device for sofa processing. In order to solve the problems that the position of an existing polishing mode is inconvenient to adjust, dust generated by polishing cannot be cleaned, the fixing mode is single, and the fixing effect is poor, the following scheme is provided. The convenient-to-adjust polishing device for sofa processing comprises a machining plate, two vertical rods are slidably mounted at the top of the machining plate, one same connecting rod is fixedly mounted between the two vertical rods, a transverse mechanism is arranged at the bottom of the connecting rod, a guide block is connected to the transverse mechanism, a grinding motor is fixedly connected to the bottom of the guide block, a worm is fixedly connected to an output shaft of the grinding motor, a grinding head is connected to the bottom end of the worm, and two dust collection structures are symmetrically installed at the bottom of the guide block and matched with the worm. According to the convenient-to-adjust polishing device, the grinding position can be conveniently adjusted, comprehensive grinding can be achieved, the dust generated by grinding can be cleared away, and the fixing efficiency is improved.
Owner:杨明清
Continuous coating device
InactiveCN108405249AEasy to operateImprove efficiencyLiquid spraying apparatusSpray boothsElectric machineryEngineering
The invention discloses a continuous coating device. The continuous coating device comprises a bottom plate; a protective cover is fixedly connected with the upper surface of the bottom plate and is internally provided with a first rotating motor; the bottom end of the first rotating motor is fixedly connected with the upper surface of the bottom plate; the output end of the first rotating motor is fixedly connected with a supporting plate; the lower surface of the supporting plate is fixedly connected with a supporting rod; the bottom end of the supporting rod is fixedly connected with a universal wheel; a workpiece fixing mechanism is fixedly arranged on the upper surface of the supporting plate; an electric pushing rod and a material storing box are perpendicularly and fixedly connectedwith the upper surface of the bottom plate; the left side face of the material storing box is provided with a groove which is connected with a third fixing block in a sliding manner; and the left side face of the third fixing block is fixedly connected with a spraying head. The continuous coating device is easy to operate, saves time and labor, is convenient, fast and efficient, improves the workpiece fixing efficiency, can achieve continuous coating of workpieces, improves the coating quality, improves the workpiece coating efficiency and lowers the work intensity for coating personnel.
Owner:张耀忠
Active coverage system for in-situ control of surface water bottom sediment nitrogen and phosphorus release and method
ActiveCN103469762AAvoid churnAvoid destructionStream regulationWater/sewage treatment by sorptionCalciteNitrogen
The invention provides an active bottom sediment coverage system for in-situ control of bottom sediment nitrogen and phosphorus release. The active bottom sediment coverage system structurally comprises a geotechnical cloth layer I, a zirconium modified zeolite coverage layer, a geotechnical cloth layer II, a mixture coverage layer and a geotechnical cloth layer III from top to bottom, the mixture coverage layer comprises hydroxyapatite particles, calcite particles and calcium modified zeolite particles with the weight ratio of 1:(1-1000):(1-1000), and the zirconium modified zeolite coverage layer comprises zirconium modified zeolite particles. The invention further provides a method of the active bottom sediment coverage system for in-situ control of bottom sediment nitrogen and phosphorus release. By the aid of the geotechnical cloth layers, structural integrity of bottom sediment coverage material layers can be effectively prevented from being damaged by external conditions, and loss of active coverage materials in the active bottom sediment coverage system is prevented. By taking the advantage that bottom sediment nitrogen and phosphorus release is respectively controlled by the coverage materials such as calcite, hydroxyapatite, calcium modified zeolite and zirconium modified zeolite, bottom sediment nitrogen and phosphorus release can be effectively and simultaneously controlled, nitrogen and phosphorus in bottom sediment are rapidly and efficiently fixed, and the active bottom sediment coverage system is suitable for wide popularization.
Owner:SHANGHAI OCEAN UNIV
Infrared absorbent, electrophotographic toner, and image forming apparatus using electrophotographic toner
ActiveUS20060019187A1High-efficiency infrared-ray absorbing capabilityImprove fixation efficiencyDiffusing elementsReactive dyesImage formationEngineering
The present invention provides an infrared absorbent having a light absorption peak in the infrared region and a crystallinity of 20 to 80%, an electrophotographic toner including the infrared absorbent, and an image forming apparatus having an electrophotographic image forming unit for forming a toner image on a recording medium with the electrophotographic toner and a fixing unit for fixing the toner image on the recording medium.
Owner:FUJIFILM BUSINESS INNOVATION CORP
Surface emitting laser packaging fixture
InactiveCN102658447ASimple structureEasy to moveWelding/cutting auxillary devicesAuxillary welding devicesEngineeringSemiconductor
The invention discloses a surface emitting laser packaging fixture, relates to the technical field of semi-conductor optoelectronics, solves the problem that a packaging machine for packaging a surface emitting laser is high in welding cost, poor in mobility, and infirm in fixing and has deviation easily. The surface emitting laser packaging fixture comprises a fixture main body; the middle of the fixture main body is provided with a rectangular sinking structure, and two ends of the fixture main body are provided with bulge structures in the same width; the middle of a bulge structure at one end is provided with a sliding groove; the fixture also comprises an ejector rod, a left fastening part and a right fastening part; the ejector rod penetrates through the sliding groove and is movably connected with the fixture main body; a spring is sleeved in the ejector rod; the left fastening part and the right fastening part are respectively provided with a length adjusting groove; and the left fastening part and the right fastening part are fixed with the fixture main body through adjusting screws in the length adjusting grooves. The surface emitting laser packaging fixture is simple in structure, high in mobility, small in deviation and easy and convenient to operate, and improves the efficiency of a welding process.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Computer hard disk mounting structure with heat dissipation and exhaust functions
InactiveCN109933156AWith cooling and exhaust functionEffective limit fixedDigital processing power distributionSurface mountingFan blade
The invention discloses a computer hard disk mounting structure with heat dissipation and exhaust functions. The structure includes a substrate, a hard disk body and cooling fan blades. A movable block is mounted in the lower end of the base body. The inner surface of the lower end of the base body is fixedly connected with a first torsion spring. A transmission gear is fixedly connected to the outer side of the first torsion spring, a first pull rope is arranged at the middle end of the transmission gear, the hard disk body is installed in the base body, a special-shaped wheel is installed onthe outer surface of the base body, connecting rods are arranged in the two sides of the base body, and first reset springs are fixedly connected to the outer surfaces of the connecting rods. The invention discloses a computer hard disk mounting structure with heat dissipation and exhaust functions. The installed hard disk body can be effectively limited and fixed through the two sets of limitingrods and clamping blocks, the heat dissipation and exhaust efficiency of the device is fully improved in cooperation with a connecting block made of a copper block material, and a user only needs todrive a special-shaped wheel to rotate through a handle, so that the hard disk body can be easily disassembled.
Owner:RIZHAO POLYTECHNIC
Welding device for industrial machinery production
InactiveCN110773544AReduce workloadImprove fixation efficiencyWelding/cutting auxillary devicesDirt cleaningGear wheelWelding
The invention discloses a welding device for industrial machinery production. The welding device comprises a base; an arc groove is formed in the outer wall of the top of the base; a first ring is mounted on one side of the outer wall of the top of the arc groove; the inner wall of the first ring is rotationally connected with a first fixed ring; a tooth groove is formed in one side of the peripheral outer wall of the first fixed ring; a fixed plate is mounted on the outer wall of the top of the first ring; a motor is mounted on the outer wall of the top of the fixed plate; a gear sleeves theperipheral outer wall of an output shaft of the motor; and the gear is engaged with the tooth groove on the first fixed ring. In the welding device, through arrangement of a lead screw, a slide blockand a servo motor, a second ring can be driven to move, and two round pipes to be welded can be tightly bonded to achieve welding; and through arrangement of the motor, the gear and the tooth groove on the first fixed ring, the round pipes on the second fixed ring and the first fixed ring can be driven to rotate for total welding of the peripheral outer walls thereof, so that the working efficiency is improved.
Owner:郭和俊
Pipeline burying device for water conservancy projects
PendingCN111824984AImprove fixation efficiencyRealize extractionPipe laying and repairLoad-engaging elementsHydraulic engineeringScrew thread
The invention discloses a pipeline burying device for water conservancy projects, and relates to the technical field of water conservancy projects. The problems are solved that synchronous reverse quick adjustment of two clamp structures cannot be achieved, and two clamps cannot be locked again in a thread transmission adjustment process; and a plurality of ground nails cannot be synchronously fixed during fixing, and mutual combination of the angular rotation of a boom main body and the disassembly of a fixed structure can not be achieved through the structural improvement. The pipeline burying device for the water conservancy projects comprises a base, wherein a fixing structure is inserted and fixed on the base, a boom main body is rotatably connected to the base, and a hydraulic telescopic rod is fixedly connected to the boom main body through bolts. The outer wall of the boom main body is welded with a toggle lever, when the toggle lever rotates along with the boom main body, thetoggle lever is in contact with a force receiving block, and at this time, the force receiving block, a mounting seat, a connecting seat and ground nails are all in a rising state, thereby realizing the extraction of the ground nails from the soil.
Owner:余洋 +4
Vibration fluidized soil body ship anchor and using method thereof
ActiveCN111547188AImprove fixation efficiencyReduce frictionAnchorsStructural engineeringStress sensors
The invention discloses a vibration fluidized soil body ship anchor and a using method thereof. The ship anchor comprises a shell and a ship anchor connecting buckle arranged at the top of the shell,the tail end of the ship anchor connecting buckle is connected with a traction rope, a telescopic rod fixing device and a pressure sensor are arranged above the shell, the bottom of the shell is connected with an anchor tip, and an electromagnet is arranged in the shell. The external structure of the ship anchor is improved, the principle that the water pressure is different from the water bottompressure is applied, and a spring vibrator, a magnet and the like are additionally arranged in the ship anchor, so that the fixing degree of the ship anchor at the water bottom is improved.
Owner:HOHAI UNIV
Fixing device for orthopedic surgery
InactiveCN108186135AGuaranteed accuracyImprove surgical efficiencyInstruments for stereotaxic surgeryEngineeringOrthopedic surgery
The invention discloses a fixing device for orthopedic surgery. The fixing device comprises a placement plate; installation blocks are fixedly installed on both sides of the front face of the placement plate, a semicircular clamp ring is arranged on the front face of each installation block, positioning pins are arranged on both sides of the front face of each clamp ring, and one end of each positioning pin penetrates through the corresponding clamp ring and extends into the corresponding installation block; a fixed plate is fixedly installed at the top of the placement plate, a motor is fixedly installed on the front face of the fixed plate, and a rotating disc is fixedly installed on an output shaft of the motor. According to the fixing device, by the arrangement of the installation blocks, the clamp rings and the positioning pins, the leg of a patient can be fixed; by the arrangement of the fixed plate, the motor, the rotating disc, a moving plate, a moving rod, a first clamping plate and a second clamping plate, the leg of the patient can be fixed, the accuracy of surgical drilling can be guranateed, the surgical efficiency can be improved, and meanwhile the problems that the fixing effect is poor, adjustment is inconvenient, the drilling precision is reduced, and consequently a lot of time is wasted are solved.
Owner:付淑珍
Rotary pipe welding machine
InactiveCN112059361AImprove welding efficiencyImprove welding precisionMetal working apparatusTubular articlesEngineeringPipe welding
The invention belongs to the technical field of welding machines, and particularly relates to a rotary pipe welding machine which comprises two semicircular clamping rings. The adjacent ends of one sides of the two clamping rings are hinged to each other, a first clamping plate and a second clamping plate are arranged at the ends of the other sides of the two clamping rings respectively, and U-shaped grooves are formed in the first clamping plate and the second clamping plate; a stud is hinged into the U-shaped groove of the first clamping plate through a rotating pin, the end, away from the rotating pin, of the stud is in threaded connection with a nut, and the part, between the nut and the rotating pin, of the stud is sleeved with a gasket; and an annular sliding groove is formed in theperipheries of the clamping rings, a T-shaped block is slidably connected into the sliding groove, a welding table is arranged at one side of the T-shaped block, and a welding gun is installed on thewelding table. According to the rotary pipe welding machine, the two semicircular clamping rings are opened and then clamped into the periphery of a round pipe, the stud is clamped into the U-shaped groove in the first clamping plate, and then the two clamping rings are quickly locked in cooperation with the nut and the gasket, so that the welding efficiency and the welding precision of the welding machine on the round pipe are improved.
Owner:东阳市菊苏科技有限公司
Low voltage cable fixing device
ActiveCN104332931AEasy to fixPrevent up and down movementCable installations on groundLow voltageEngineering
The invention relates to a low voltage cable fixing device. The low voltage cable fixing device comprises a bottom seat, wherein the bottom seat comprises a bottom plate and a vertical plate, a chute is arranged on the upper side face of the bottom plate, two clamp grooves are respectively formed in two side edges of the bottom plate, a group of open grooves are formed in the upper side of the vertical plate, a group of baffle components and a fixing plate are respectively connected onto the bottom plate through the chute in sliding fit mode, a fixing plate slide block and two symmetric clamp blocks are respectively arranged in the middle and two sides of the lower side of the fixing plate, a group of adjustment grooves are formed in the upper side of the fixing plate, the adjustment grooves are correspondingly matched with the open grooves, a fixing rod is arranged in each adjustment groove and each open groove, which are corresponding, and each fixing rod is locked and fixed through locking nuts at two ends. The low voltage cable fixing device has the advantages of being good in universality, suitable for fixing different quantities and sizes of electric cables, reusable, simple in structure, firm in fixation, convenient to operate, low in labor intensity and high in cable fixing efficiency, and saving time and labor when used to fix the electric cables.
Owner:中国电建集团江西省水电工程局有限公司
Mini sensor for sensing chemical substance
InactiveCN101382479AImprove fixation efficiencyReduce wasteSurface/boundary effectScanning probe techniquesCantileverMechanical property
The invention provides a micro-sensor used for sensing a chemical substance. The micro-sensor provided by the invention comprises a substrate, a micro-cantilever beam, an electrode structure and a measurement unit, wherein, the micro-cantilever beam is formed on the substrate and used for capturing the capturing surface of the chemical substance, the electrode structure is used for providing an electrical field which is arranged for assisting the capturing surface to capture the chemical substance, the measurement unit is coupled with the micro-cantilever beam and used for measuring a variable quantity of the mechanical property of the micro-cantilever beam caused by the captured chemical substance, and translating the variable quantity into the information related to the chemical substance.
Owner:黄荣山
Freshwater Chlorella sorokiniana GS30 and application thereof
InactiveCN103952312AEfficient emission reductionEffectively fixedUnicellular algaeBiofuelsBiodieselEngineering
The invention relates to the technical field of biomass energy, and in particular to a freshwater chlorella strain (i) Chlorella sorokiniana ( / i) GS03 and application thereof to industrial flue gas CO2 fixation and production of microalgae biodiesel. The chlorella strain (i) C.sorokiniana ( / i) GS03 provided by the invention has a preservation number of CCTCC M2013607, and higher CO2 tolerance, higher fixation efficiency of high-concentration carbon dioxide and higher biomass yield and oil yield compared with the reported microalgae strains. Therefore, the invention can greatly reduce microalgal oil production cost, and provides a good production strain for algae for efficient fixation of CO2 in typical industrial flue gas environment and biodiesel production from microalgae oil, and shows great application prospect in the field of biomass energy.
Owner:SHANGHAI JIAO TONG UNIV
Preparation method and application of denitrifying bacteria immobilized on graphene-based composite material
InactiveCN108102956AImprove adsorption capacityGood fixation and embeddingBacteriaWater contaminantsCross-linkMicroorganism
The invention discloses a preparation method and application of denitrifying bacteria immobilized on a graphene-based composite material, relating to the field of microorganism environmental protection. The preparation method comprises the steps of (1) inoculating an enrichment medium with denitrifying bacteria to cultivate, centrifuging a cultivation liquid to remove supernate, so as to obtain bacteria; suspending the bacteria in normal saline, so as to obtain a denitrifying bacteria suspension; (2) adsorbing the bacteria suspension for 2-6 hours by using 1wt% of charcoal powder, so as to obtain an adsorption solution; (3) preparing an embedding agent of the graphene-based composite material through a covalent cross-linking method; (4) uniformly mixing the adsorption solution with the embedding agent so as to obtain a mixed carrier; and (5) dripping the mixed carrier into the cross-linking agent drop by drop, cross linking to obtain the immobilized microorganism particles. The prepared immobilized microorganism has high tolerance and high activity, and can treat nitrogen-containing sewage actively and repeatedly.
Owner:QUFU NORMAL UNIV
Microorganism sample rapid detection method and detection device thereof
ActiveCN102879565AHigh sensitivityIncrease fixed amountMaterial analysisImmune complex depositionBiology
The invention discloses a microorganism sample rapid detection method and a detection device thereof, which is realized by a mesoporous biochip. The detection method comprises the following steps: firstly fixing antibodies on micropore tunnel surfaces of a mesoporous biochip, allowing a test sample to flow through the chip micropore tunnels with the antibodies fixed so as to realize separation and enrichment of pathogenic microorganisms or other biological substances by the chip, then injecting a solution containing a fluorescence-labeled or an enzyme-labeled antibody into the chip micropore tunnel to form a sandwich-type antibody-antigen-labeled antibody immune complex, and detecting the pathogenic microorganisms or other biological substances by detecting the fluorescence intensity of the fluorescence-labeled antibody or the light absorption or chemiluminiscence intensity of the product of the enzymic catalytic reaction so as to realize the detection of the microorganisms to be detected. The mesoporous biochip has a great number of micropore tunnels, which greatly increases the reaction area, and thus when used for microorganism sample detection, the detection method and the detection device of the invention have the characteristics of high detection sensitivity and high detection speed.
Owner:SICHUAN UNIV
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