Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

50results about How to "Break the balance" patented technology

Construction technology for allowing tunnel to pass through ultra-large karst cave

The invention relates to a construction technology for allowing a tunnel to pass through a karst cave, and in particular relates to a construction technology for allowing a tunnel to pass through an ultra-large karst cave. The technology at least comprises the following steps of: 1) performing simple bridge treatment on the underground part of the karst cave; 2) performing primary support, namelyarranging a support wall at one side of the karst cave; 3) forming parallel guide holes; 4) performing bottom treatment; 5) treating the tunnel hole body at the inlet section of the karst cave; 6) filling C25 early strength sprayed concrete within 1 meter at the top of the support wall, and arranging phi 50 small grouting conduits with the lengths of 3 meters in the concrete, wherein the distancebetween the small conduits is 1.5 meters; 7) supporting the arch part and the side wall surrounding rock of the karst cave by adopting phi 22 cartridge anchor rods arranged in a plum blossom shape and at a distance of 150cm*150cm, hanging phi6 reinforcing meshes at a distance of 15cm*15cm, and spraying C25 early strength concrete with the thickness of 15 centimeters; 8) treating the accumulation of the karst cave; and 9) monitoring and measuring when the tunnel passes through the ultra-large karst cave. The construction technology for allowing the tunnel to pass through the ultra-large karst cave is simple in process, convenient for construction, low in cost, scientific, effective, energy-saving and environmentally-friendly.
Owner:CCCC SHEC DONGMENG ENG CO LTD

Preparation method of lactate

This invention relates to a kind esterification reaction technology of lactic acid, above all refer a coupling technology of adopting membrane course to integrate lactic acid esterification reaction. It takes lactic acid and alcohol as raw material. adding catalyzer and alcohol in reactor, adopting pressure actuated device to pressurize lactic acid, make lactic acid permeate porous membrane diverting device and enter liquid in reactor; heat reaction, at the same time adopt dehydration plant to deprive water from system; while reaction completed, adopt reduced pressure distillation method to separate mixed liquor of reaction which mostly contain lactic acid, alcohol, lactate as well as ounce water, to obtain high-purity lactate, and the rest materials for periodic duty. This invention solves a good many problems about low transformation efficiency, high dissipation of energy, equipment erosion and environmental pollution in existing esterification reaction craft.
Owner:NANJING UNIV OF TECH

Enhanced acid dissolve of acidizing fired slags of concentrated gold ores containing sulfur

The invention was involved in the method to dissolve sulphating roasting slag of sulfureous gold ore by acid . The steps consist of the following: a) 20%-80% acid, roasting slag and lacquer solvent were added into the reactor and was mixed. The mass percent of acid and roasting slag was 1 to 1-15 and the mass percent of lacquer solvent and roasting slag was 1 to 1-100. b) All the materials were reacted for 1-6h at 60-120deg.C. c) Gold and silver were extracted by traditional method from filter residue. Extracted rate of ferrum in roasting slag was 1 fold more than traditional method under same temperature, time and concentration of acid solution .The method promoted extract of gold in the cyaniding technology and the efficiency was improved by 3%-4%.
Owner:DONGHUA UNIV +1

Rail traction power supply system based on flywheel energy storage device and method for increasing power quality thereof

The invention relates to a rail traction power supply system based on a flywheel energy storage device and a method for increasing power quality thereof. The system comprises a railway switching room, a flywheel energy storage device, a converter and step-down transformers respectively arranged on a phase a and a phase b of a power supply arm, wherein a fuse and a circuit breaker are arranged on the high-pressure side of each step-down transformer; in the whole electric circuit, the flywheel energy storage device is connected with feeding busbars a and b through the converter and the step-down transformers; the step-down transformers and a converter system are used for converting the single-phase alternating current on the feeding busbars into direct current and outputting to the flywheel energy storage device; the flywheel energy storage device is used for executing a control strategy in the manner of collecting the voltage and current of the converter system. According to the invention, complete three-phase voltage balancing and active power regulation can be realized; recycling and reutilization for the regenerative brake energy of the train are realized; the investment of the passing neutral section device is reduced; the running of the power system is more stable and the power quality of the system is increased; the rail traction power supply system is applicable to the common power grid and micro-grid.
Owner:DUNSHI MAGNETIC ENERGY TECH

An image quality evaluation method based on importance between deep network features

ActiveCN109671063AMaximize the predictive effectBreak the balanceImage enhancementImage analysisData setAlgorithm
The invention discloses an image quality evaluation method based on importance between deep network features. According to the method, a module for judging the importance relationship between the feature maps is added to end-to-end neural network model training, the image quality can be predicted more accurately, and a high generalization capability is shown on each image quality assessment (IQA)data set. The method specifically comprises the following steps of 1) preparing an image quality assessment data set for training a test network model, and randomly dividing the image quality assessment data set into a training set and a test set according to image contents; 2) adding a SeNet module into the vgg-16 network to build a neural network model VGG*-SE in multiple different combination mechanisms for image quality assessment, using the training data set to train the network models respectively, selecting the model as a final model when the trained model reaches expected precision onthe test data set, and storing parameters after training of the network model; and 3) calculating the prediction precision of the test set by using the selected final model.
Owner:XI AN JIAOTONG UNIV

Inorganic waterproof material with high impervious performance

The invention discloses an inorganic waterproof material with a high impervious performance. The raw materials comprise silicate cement, fine river sands, grade I coal ash, silicon powder, an expanding agent and a water reducer. The raw materials further comprise ferric chloride. The inorganic waterproof material comprises the following raw materials in parts by weight: 71-75 parts of silicate cement, 144-152 parts of fine river sands, 11-13 parts of grade I coal ash, 2-4 parts of silicon powder, 11-13 parts of an expanding agent, 3 parts of ferric chloride and 1 part of a water reducer. The material disclosed by the invention has the advantages that the chemical substance ferric chloride is added into the raw materials and the part by weight of the raw materials is adjusted, so that the impervious performance of the waterproof material is improved by 8.16%. In the waterproof material disclosed by the invention, the chemical substance ferric chloride has extremely strong activity and can be quickly reacted with a hydration product of cement to generate insoluble matters so as to effectively block fine holes in mortar, thereby greatly improving the impervious performance of the mortar.
Owner:YELLOW RIVER ENG CONSULTING

Oligomer flocculating microalgae utilization method and application method thereof

ActiveCN106434354AEliminate mutual repulsionReach flocculationUnicellular algaeMicroorganism based processesFlocculationSulfate radicals
The invention belongs to the technical field of biomass energy, and discloses an oligomer flocculating microalgae utilization method and application method thereof. The utilization method comprises the steps of adding oligomer in a culture solution cultured with microalgae, stirring to make the microalgae flocculating and sinking, after stewing and layering, separating the upper layer clear solution, to obtain the flocculated culture solution and microalgae; the oligomer is the mixed oligomer obtained after hydrolysis of the amino silane coupling agent alcobolic solution. The method through adding oligomer in the microalgae culture solution, through the action of the protonated amino group in oligomer with the negative charge brought by hydroxyl or sulfate radical and other group on the microalgae cell surface, achieves the effect of removing the surface repulsive force among the cells, and breaks the balance state of microalgae in the culture solution, meanwhile, because of the spatial steric hindrance of olgomer, the microalgae cells are made connected in a bridging mode and react by agglomeration settlement, thus achieving the effect of flocculation harvesting, the harvesting efficiency can reach 90% or above, can be widely applied to the Isolation and harvesting of microalgae.
Owner:JINAN UNIVERSITY

Angle-adjustable CT (Computed Tomography) device

The invention discloses an angle-adjustable CT (Computed Tomography) device and belongs to the technical field of computer tomography equipment. The device comprises a suction cup matrix and a drive part, wherein the suction cup matrix adsorbs and fixes a to-be-detected object; the drive part is composed of a plurality of drive units connected in series; each of the drive units is composed of an electromagnetic actuator, a rotating part, an upper platform and a lower platform; the electromagnetic actuator and the rotating part are in one-to-one association and are evenly placed between the upper platform and the lower platform; the rotating part is formed by connecting a rotating body, a cross shaft, a connecting shaft and a nut; the rotating part has a universal rotating function; a strong magnet is fixed at the bottom of the lower platform; and the bottom of the lower platform is fixed on a CT turntable through the strong magnet. According to the angle-adjustable CT device, by controlling the movement of the drive units, the angle adjustment of the to-be-detected object is implemented, the adjustment angle is large, the adjustment efficiency is high, the device can be repeatedlyused, the efficiency of CT detection is improved, the manual repeated change of the angle of the to-be-detected object is prevented, the labor intensity of an inspector is reduced and the device has good promotion and application values.
Owner:杭州翔毅科技有限公司

Rapid thermal excitation exploitation device for natural gas hydrate

InactiveCN104196508ASimple and reliable deliveryReduce lossesConstructionsFluid removalCollection systemNitrogen
The invention provides a rapid thermal excitation exploitation device for natural gas hydrate. The device comprises a delivery pipeline and a collection pipeline which are respectively disposed in two shafts reaching the middle-lower portion of a natural gas hydrate reservoir in depth, a jet apparatus is arranged at the lower end of the delivery pipeline and comprises a jet pump and a negative-pressure booster pump, the upper end of the delivery pipeline is connected with a pressure pump device which is connected with a collection device, the collection device is filled with nano-aluminum powder, the upper portion of the collection pipe is connected with a cooling device which is connected with a collection system, and pressure gas is inert gas nitrogen. The natural gas hydrate is decomposed rapidly mainly by the aid of a large amount of heat generated by reaction between the nano-aluminum powder and ice and removal of the ice by reaction, and the device mainly solves the problem of low thermal efficiency utilization and can be widely used under the conditions of various gas reservoirs.
Owner:HARBIN ENG UNIV

Chilo venosatus walker ecdysis regulation transcription factor cDNA and cloning method and recombinant application thereof

InactiveCN102586259ABreak the balanceTo achieve the purpose of biological controlAnimal feeding stuffFermentationBiotechnologyEscherichia coli
The invention belongs to the field of biological gene engineering. A chilo venosatus walker ecdysis regulation transcription factor CsHR3 contains sequences shown by SEQ ID NO.1 and SEQ ID NO.2. The cloning method provided by the invention comprises the following steps of: extracting total RNA (ribonucleic acid) from chilo venosatus walker larvas in prepupal period, and carrying out reverse transcription to synthesize cDNA; designing a degenerate primer according to conserved sequences of different lepidopterous insect ecdysis regulation transcription factors, carrying out PCR (polymerase chain reaction) amplification on the intermediate segment of the chilo venosatus walker CsHR3 gene, designing a specific primer by adopting 3'-RACE (rapid-amplification of cDNA ends) technology, and then obtaining the 1266bp segment of the CsHR3 gene successfully. According to the invention, dsRNA is expressed in RNaseIII defective escherichia coli HT 115 by adopting a bacterium mediate RNAi technology to obtain dsRNA with biological activity, and the chilo venosatus walker ecdysis regulation transcription factor CsHR3 gene is silenced by feeding the chilo venosatus walker larvas, thus chilo venosatus walker can not complete ecdysis or normal growth and development process of the chilo venosatus walker is destroyed and biological prevention and control on the chilo venosatus walker is realized; or the chilo venosatus walker ecdysis regulation transcription factor is converted into a crop, and the crop with insect resistance is obtained.
Owner:广西康田农业科技股份有限公司

Seasoning milk sauce and preparation method thereof

The invention belongs to the technical field of seasoning sauce, and particularly relates to novel seasoning milk sauce and a preparation method thereof. The seasoning milk sauce is refined by high fructose corn syrup, whole milk powder, hot boiled water, fried peanut micro powder, cream, fried sesame seed micro powder, oligomerization xylose and lactose micro powder. The seasoning milk sauce is prepared from the steps of microwave disinfection, homogenizing, a Maillard reaction, encapsulation and the like. The preparation method is simple and easy to implement, and is suitable for large scale industry production; new technologies of microwave disinfection and the Maillard reaction are used, and additives and essence are not added, so that the original taste and the original flavor of food are kept; a new formula comprising Chinese wolfberry and cloves is used, so that the seasoning milk sauce has the efficacies of nourishing the liver and the kidney, replenishing vital essence to improve the eyesight, warming the middle warmer, warming the kidney and resisting bacteria; the obtained seasoning sauce is rich in lactoprotein and plant proteins, and has ice-cold mouth feel and fragrant taste.
Owner:广东东泰乳业有限公司

Angle-adjustable ultrasonic probe device

The invention relates to an angle-adjustable ultrasonic probe device. The device comprises a probe, a platform, a probe angle adjusting mechanism and a base; the probe is mounted on the platform, theprobe angle adjusting mechanism comprises at least one angle adjusting unit mounted between the platform and the base; the angle adjusting unit comprises a rotating component and a telescopic drivingmodule fixed on the base; the rotating component is composed of a cardan universal joint, one end of the universal joint is fixed on the platform, and the other end of the universal joint is fixedly connected with a telescopic end of the telescopic driving module, the telescopic driving module performs telescopic movement up and down to drive the universal joint to perform rotating movement, thereby realizing the adjusting of the probe angle. The detection range of the probe is effectively improved through the angle adjusting mechanism, the control on the probe inclination angle is realized, the reliability of the ultrasonic detection is improved, and the labor intensity of detection personnel is reduced.
Owner:HEFEI GENERAL MACHINERY RES INST +1

High-strength anti-theft glass film

The high strength anti-theft glass film includes one base film layer, one coated film layer and transparent conducting glue in between to constitute loop. It has the advantages of low cost, high strength, easy installation and use, and high heat insulating performance. Its high strength makes the glass hard to break, and this can block and delay invasion. Its conducting glue may be connected to an alarm to send warning signal after the glass is broken. The present invention may be applied widely for the windows of house, office, exhibition hall and other buildings as well as show window.
Owner:陈茂爽 +1

Wormwood toothpaste

The invention relates to the technical field of oral preparations, in particular to wormwood toothpaste. The wormwood toothpaste comprises the following components in percentage by weight: 30-55 percent of a friction agent, 20-30 percent of a moisturizing agent, 1-3 percent of a surfactant, 1-3 percent of a thickening agent, 0.5-2 percent of perfume, 0.1-0.4 percent of a sweetening agent, 0-1 percent of a preservative and the balance of water. The wormwood toothpaste comprises the following making steps: step 1, making toothpaste; step 2, making a wormwood coating; step 3, filling. With the adoption of the scheme, people can be prevented from using the same medicated toothpaste for a long term, and the situation that the balance among floras is broken as drug-sensitive bacteria is in an inhibited state for a long term is not easily caused.
Owner:贵州务川国韵生物科技有限公司

SBS modified asphalt with affinity group and preparation method thereof

The invention discloses an SBS modified asphalt with an affinity group. The asphalt comprises, by weight, 3 to 10% of SBS, 0.5 to 5% of a stabilizing agent, 0.5 to 6% of a cosolvent, 2 to 10% of an affinity group additive and 75 to 95% of matrix asphalt. The invention further discloses a preparation method for the SBS modified asphalt with the affinity group. The SBS modified asphalt provided by the invention can break balance between an SBS modifier and the asphalt, prevents aggregation of SBS, improves dispersibility of the SBS modifier in the asphalt, enhances overall performance of the SBS modified asphalt and enables data (i.e., a softening point difference) of a segregation experiment to be obviously reduced.
Owner:SHANGHAI PUDONG LUQIAO ASPHALT MATERIAL CO LTD +1

Construction technology for allowing tunnel to pass through ultra-large karst cave

The invention relates to a construction technology for allowing a tunnel to pass through a karst cave, and in particular relates to a construction technology for allowing a tunnel to pass through an ultra-large karst cave. The technology at least comprises the following steps of: 1) performing simple bridge treatment on the underground part of the karst cave; 2) performing primary support, namely arranging a support wall at one side of the karst cave; 3) forming parallel guide holes; 4) performing bottom treatment; 5) treating the tunnel hole body at the inlet section of the karst cave; 6) filling C25 early strength sprayed concrete within 1 meter at the top of the support wall, and arranging phi 50 small grouting conduits with the lengths of 3 meters in the concrete, wherein the distance between the small conduits is 1.5 meters; 7) supporting the arch part and the side wall surrounding rock of the karst cave by adopting phi 22 cartridge anchor rods arranged in a plum blossom shape and at a distance of 150cm*150cm, hanging phi6 reinforcing meshes at a distance of 15cm*15cm, and spraying C25 early strength concrete with the thickness of 15 centimeters; 8) treating the accumulation of the karst cave; and 9) monitoring and measuring when the tunnel passes through the ultra-large karst cave. The construction technology for allowing the tunnel to pass through the ultra-large karst cave is simple in process, convenient for construction, low in cost, scientific, effective, energy-saving and environmentally-friendly.
Owner:CCCC SHEC DONGMENG ENG CO LTD

Preparation method and product of fish skin gelatin

The invention relates to a preparation method and product of fish skin gelatin, and belongs to the technical field of biological extraction. The preparation method comprises nine processes of pretreatment, degreasing, washing and draining, microwave pretreatment, liquid nitrogen quick freezing, rapid thawing, gelatin extraction, filtration and drying. In the preparation method, the microwave pretreatment and the liquid nitrogen rapid freezing and thawing are combined to induce gelatinization of fish skin, and after a fish skin raw material is gelatinized, hot water can be used for gelatin extraction only by water thawing. Compared with traditional acid and alkali processes, the preparation method is not treated with any acid or alkali, the degree of pollution to the environment is almost zero, and the environmental pressure of gelatin production can be greatly reduced; and the method is simple in process, easy to operate, low in equipment requirements and suitable for industrial production. The fish skin gelatin produced by the preparation method is a light yellow transparent sheet-shaped object, the gelatin yield reaches as high as 16-18% (g / g wet basis materials), and the physical and chemical properties all meet the standard of GB 6783-2013 (food additive gelatin).
Owner:SOUTHWEST UNIV

Method for flocculating microalgae by using flue gas and application thereof

InactiveCN106047712ACost-freeEliminate mutual repulsionUnicellular algaeMicroorganism based processesNutrient solutionHydrogen ion
The invention discloses a method for flocculating microalgae by using flue gas and application thereof, belonging to the technical field of biomass energy. The method comprises the following concrete steps: introducing flue gas containing sulfur dioxide into a nutrient solution where microalgae are cultured until microalga agglomeration algae is generated; carrying out standing; and removing supernatant so as to obtain flocculated microalgae; wherein the microalgae refer to fresh-water microalgae. According to the invention, flue gas from a coal-fired plant is continuously introduced into the microalga nutrient solution and sulfur dioxide hydrate in the flue gas interacts with extracellular polysaccharide organic matters secreted by the surfaces of microalgae, so the negatively-charged extracellular polysaccharide organic matters bond with the sulfur dioxide hydrate and free hydrogen ions produced thereof, surface expulsive force among cells is eliminated, and the balance state of microalgae in the nutrient solution is broken; thus, agglomeration and settlement of microalga cells are realized, and harvesting efficiency reaches 90% or above. The method is simple to operate and high in separation efficiency, has almost no cost and can be applied to separation of microalgae.
Owner:JINAN UNIVERSITY

Method for refining and purifying steviolbioside

The invention discloses a method for refining and purifying steviolbioside, and belongs to the technical field of natural extract refining. The method comprises the following steps: adding water to dissolve stevia rebaudiana to obtain a steviolbioside containing solution, supplementing H<+> into the solution for crystallization, and performing solid-liquid separation to obtain a crystallization product, wherein the crystallization product is a refined steviolbioside product. The method is simple in process and controllable in condition, and a stevioside product with steviolbioside content of 85 percent or higher can be obtained.
Owner:CHENGUANG BIOTECH GRP CO LTD

Treatment method for inhibiting browning in dehydration process of pteridium aquilinum

The invention discloses a treatment method for inhibiting browning in a dehydration process of pteridium aquilinum and relates to the technical field of processing of the pteridium aquilinum. The treatment method comprises the steps of (1) material selection; (2) cleaning; and (3) dehydrating and drying treatment. By firstly adopting hot air drying and then adopting microwave drying, capillary bound water and adsorption bound water in the pteridium aquilinum can be effectively removed, and the dehydration efficiency can be improved; and a grape seed polyphenol solution is adopted for carrying out soaking treatment, and grape seed polyphenol can enter the interior of the pteridium aquilinum so as to dispel oxygen contained in the pteridium aquilinum and reduce the activity of polyphenol oxidase. As grape seed polyphenol can quickly enter the interior of the pteridium aquilinum to reduce the activity of polyphenol oxidase, by adopting a grape seed polyphenol solution with relatively low temperature for soaking, the surface temperature of the pteridium aquilinum can be reduced to a certain extent; and furthermore, grape seed polyphenol in the pteridium aquilinum can be supplemented so as to reduce the activity of polyphenol oxidase and further inhibit the browning of the pteridium aquilinum.
Owner:HEFEI YUANZHENG AFE SCI TECH

TaWN film in copper interlinked barrier layer material

A TaWN film used as the barrier material of copper interconnection contains W (13.6-22.7 Wt%), N (9) and Ta (rest). Its advantages are high adhesion and high power to resist against electronic migration.
Owner:SHANGHAI JIAOTONG UNIV +1

Sterilization device for pulverized medical waste

InactiveCN107597344ASolve the problem that it is easy to fall into the corner of the cabinetImprove work efficiencyMedical waste disposalGrain treatmentsMedical wasteEngineering
The invention discloses a sterilization device for pulverized medical waste and relates to the technical field of mechanical equipment. The sterilization device comprises a box body; supporting legs are fixedly connected to the two sides of the bottom of the box body; a transmission device is fixedly connected to the left side of the bottom of an inner cavity of the box body, and a shaking plate is rotationally connected to the top of the transmission device; a fixing rod is rotationally connected to the right side of the bottom of the shaking plate, a fixed plate is fixedly connected to the bottom end of the fixing rod, and the right side of the fixed plate is fixedly connected with the right side of the inner cavity of the box body; heaters are fixedly connected to the two sides of the inner cavity of the box body correspondingly; and the transmission device comprises a shell, a motor is fixedly connected to the bottom of an inner cavity of the shell, a first gear is fixedly connected to an output shaft of the motor, and the top of the first gear is engaged with a second gear. According to the sterilization device for the pulverized medical waste, the problem that a traditional sterilization device is poor in sterilization effect is solved, the situation that the environment is severely polluted is avoided, the health of workers is ensured, and ecological balance is guaranteed.
Owner:合肥棠凯科技有限公司

Garbage can for sweeping robot and sweeping robot

The invention relates to the technical field of intelligent robots, and particularly discloses a garbage can for a sweeping robot and the sweeping robot. The garbage can for the sweeping robot comprises a garbage can body, a door body and a garbage stirring assembly, and a pouring opening is formed in the garbage can body; the door body is mounted on the garbage can body and used for opening and closing the pouring opening; the garbage stirring assembly is installed on one side, arranged in the garbage can body, of the door body, and the garbage stirring assembly stirs garbage in the garbage can body when the door body is opened. According to the garbage can for the sweeping robot, the garbage stirring assembly is arranged on the door body, the garbage stirring assembly stirs garbage in the garbage can body when the door body is opened, the balance of the garbage in the garbage can body is broken, the discharging problem of long-strip-shaped garbage which cannot automatically fall due to the dead weight is solved, it is ensured that the garbage is dumped thoroughly, Manual intervention is not needed, normal work of the sweeping robot is guaranteed, and the fault rate of the sweeping robot is reduced.
Owner:苏州高之仙自动化科技有限公司

Human laryngeal epithelium cancer cell as well as preparation method and application thereof

The invention provides a human laryngeal epithelium cancer cell HEp-2-NS1 with a preservation number (China Center for Type Culture Collection) CCTCC NO: C201092. The human laryngeal epithelium cancer cell can inhibit interferon and can be rapidly propagated. The invention also provides a preparation method and application of the human laryngeal epithelium cancer cell.
Owner:STATE KEY LAB OF RESPIRATORY DISEASE +1

Ventilation pipe fixing frame for mining

The invention provides a ventilation pipe fixing frame for mining. The ventilation pipe fixing frame for mining comprises a fixing plate, a supporting structure, a fixing structure, a connecting structure, a pipe erecting structure, a clamping structure and a ventilation pipeline, wherein the top face of the supporting structure abuts against the two ends of the bottom face of the fixing plate, the supporting structure comprises a hydraulic supporting column, an ejector head, a supporting plate and an anti-skid pad, the top face of the anti-skid pad abuts against the two ends of the bottom face of the fixing plate, the supporting plate is fixed at the bottom end of the anti-slip pad, the ejector head is fixed at the middle position of the ground of the supporting plate, the fixing structure is fixed at the middle position of the bottom face of the fixing plate, the connecting structure is mounted at the bottom end of a movable rod; the pipe erecting structure is fixed to the bottom end of a fixing block, and the clamping structure penetrates through the two ends of the side wall of the top face of a pipe erecting sleeve. The ventilation pipe fixing frame for mining has the advantages that a plurality of ventilation pipes are convenient to mount, and the balance of a mine is not damaged.
Owner:梅碧章

Chilo venosatus walker ecdysis regulation transcription factor cDNA and cloning method and recombinant application thereof

InactiveCN102586259BBreak the balanceTo achieve the purpose of biological controlAnimal feeding stuffFermentationBiotechnologyEscherichia coli
The invention belongs to the field of biological gene engineering. A chilo venosatus walker ecdysis regulation transcription factor CsHR3 contains sequences shown by SEQ ID NO.1 and SEQ ID NO.2. The cloning method provided by the invention comprises the following steps of: extracting total RNA (ribonucleic acid) from chilo venosatus walker larvas in prepupal period, and carrying out reverse transcription to synthesize cDNA; designing a degenerate primer according to conserved sequences of different lepidopterous insect ecdysis regulation transcription factors, carrying out PCR (polymerase chain reaction) amplification on the intermediate segment of the chilo venosatus walker CsHR3 gene, designing a specific primer by adopting 3'-RACE (rapid-amplification of cDNA ends) technology, and then obtaining the 1266bp segment of the CsHR3 gene successfully. According to the invention, dsRNA is expressed in RNaseIII defective escherichia coli HT 115 by adopting a bacterium mediate RNAi technology to obtain dsRNA with biological activity, and the chilo venosatus walker ecdysis regulation transcription factor CsHR3 gene is silenced by feeding the chilo venosatus walker larvas, thus chilo venosatus walker can not complete ecdysis or normal growth and development process of the chilo venosatus walker is destroyed and biological prevention and control on the chilo venosatus walker is realized; or the chilo venosatus walker ecdysis regulation transcription factor is converted into a crop, and the crop with insect resistance is obtained.
Owner:广西康田农业科技股份有限公司

Conveying automatic loose sorting device

The invention relates to a conveying automatic loose sorting device which comprises a mounting plate; mounting plate is fixedly provided with a drive device and a rubbing assembly connected with the drive device; the rubbing assembly comprises a first rubbing plate and a second rubbing plate; the first rubbing plate and the second rubbing plate are fixed on two different line track sliders respectively; the line rail sliders are connected with linear guide rails respectively; the two wire track sliders are connected with each other through a swing arm; one and only one of the two line rail sliders is connected with one end of a line rail slider connecting rod, and the other end of the connecting rod is connected with an eccentric block; the drive device drives the eccentric block and the connecting rod to move to enable the linear rail sliders to move on the linear guide rails respectively; and the first rubbing plate and the second rubbing plate perform rubbing through the swing arm along with the linear rail sliders respectively. For the conveying automatic loose sorting device provided by the invention, by driving the two rubbing plates by the drive motor to perform rubbing backand forth, the rubbing action is realized to break through the balance of objects on a conveying line, and the objects are prevented from forming jamming and blockage at a discharge hole, so that thepurpose of sorting is achieved, convenience is provided to object detection at a rear section, and manual detection is replaced.
Owner:BEIJING FOCUSIGHT TECH

Arthritis physiotherapy device beneficial to full absorption of liquid medicines on surface

The invention relates to the technical field of arthritis treatment equipment, and discloses an arthritis physiotherapy device beneficial to full absorption of liquid medicines on surface. The devicecomprises a sleeve, the lower end of a rotary drum is connected to a first rectangular magnetic block, the inner side of the upper end of the rotary drum is connected to a U-shaped magnet, a piston isconnected into a medicine conveying device, the lower end of the piston is connected to a U-shaped rod, the outer end of the U-shaped rod is connected to a transverse plate, and the lower end of thetransverse plate is connected to a second rectangular magnetic block. The liquid medicines are magnetized through magnetic induction lines between drums; the magnetic field intensities generated by coils on the left side and the right side of the rotary drum are different, the coils drive the rotary drum to rotate in a sliding groove, and the magnetic induction lines between first rectangular magnetic block sets at the inner end of the rotary drum rotate around the joints of the human body, so that molecules in the human body and liquid medicine molecules can be magnetized in horizontal and vertical magnetic fields no matter how the molecules and the liquid medicine molecules move. By means of the structure, the problems that existing arthritis physiotherapy devices are poor in liquid medicine permeation and long in physiotherapy time are solved.
Owner:HEBI CITY PEOPLES HOSPITAL

Floating head pressing plate pressing head device with adjustable interval

The invention belongs to the technical field of machining of cylinder heads of motorcycles, and particularly relates to a floating head pressing plate pressing head device with an adjustable interval. The floating head pressing plate pressing head device comprises a connection rod, a power shaft and two balancing stands, wherein each balancing stand is of a cuboid structure; the center of the inner side surface of each balancing stand is provided with a threaded hole; the connection rod is of a cylindrical structure; the two ends of the connection rod are connected with the threaded holes through threads; the middle part of the connection rod is provided with a clamping groove along the peripheral direction; the bottom end of the power rod extends into the clamping groove and is matched with the clamping groove to form a bulb pair; and the two ends of each balancing stand are symmetrically provided with pressing heads. The floating head pressing plate pressing head device has the beneficial effects that the structure is simple; the operation for adjusting the interval between the pressing heads is convenient; the adjusting range is small, so that balance among the pressing heads is prevented from being damaged; pressing balance is realized among the pressing heads; and the machining quality of a product is improved.
Owner:CHONGQINGZHICHENG MACHINERY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products