Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
65results about How to "Experimental effect is good" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Alkaline ionic liquid as well as preparation and application thereof
InactiveCN102126968ACan be reusedExperimental effect is goodProductsOrganic compound preparationAlcoholDesorption
The invention relates to multiple kinds of alkaline ionic liquids as well as preparation methods and application thereof. The alkaline ionic liquid provided by the invention mainly comprises a cation X<+> and an anion Y<->, wherein the precursor of the cation X<+> is choline, phosphine, guanidine or amine; and the precursor of the anion Y<-> is imidazole, phenol or alcohol. The alkaline ionic liquid is prepared from the precursors of the cation and anion at room temperature in a certain ratio. The ionic liquid synthesized in the invention can be applied to the absorption of acidic gases such as carbon dioxide and sulfur dioxide, the absorption and desorption effects are good and the ionic liquid can be recycled.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Temperature difference-sediment coupling density flow simulation test system
ActiveCN103424240ABeneficial technical effectReduce distractionsHydrodynamic testingHydraulic modelsSurface layerWater channel
The invention relates to a temperature difference-sediment coupling density flow simulation test system. The test system comprises a muddy water tank, a water pump, a heating device, a water channel, a turbine flowmeter, a plurality of thermographs and a circulating water pond; the water channel is connected with the water pump and the muddy water tank through a duct, the turbine flowmeter is connected with the duct, temperature probes of each thermograph are arranged at two vertical water temperature measurement positions of the side wall inside the water channel, and the heating device is installed above the water channel. The test system is simple in structure and convenient to operate; by the aid of the test system, the interference of the heating device to a flow field inside the water channel at the density flow test stage in the past is reduced, and the motion process of a sediment density flow in a temperature-layered water body is simulated successfully; special phenomena of advancing of the sediment density flow in the middle layer and the surface layer of the water channel under the influence of vertical water temperature laying are achieved, and in addition, the reliability and the accuracy of density flow analysis and research can be improved.
Owner:SICHUAN UNIV
Stratified flow simulation test water channel system
The invention relates to a stratified flow simulation test water channel system which includes a reservoir, a submersible pump, a flowmeter, a valve switch, a water channel, a hydraulic jack, a position regulator in the water channel, a position-adjustable water inlet, a grid net, a pulling gate, a digital temperature chain and a sampling tube, a backwater sand punching pipe, a multi-channel recorder outside the water channel, a pump-absorption water sample acquisition case, a drain aperture elevation adjusting device and a position-adjustable water outlet. The water channel system has a simple structure and is easy to operate. The system can simulate a moving process of a stratified flow at the beginning of an inflow stage, and can also simulate the moving process of a stratified flow under the release of a valve flow, a stratified flow having the water inlets at different depths, a stratified flow having different bottom slop coarse degrees, and a stratified flow caused by different shapes and different factors. The system, through addressing the problem of singularity in stratified flow simulation types in traditional stratified flow tests, successfully achieves tests of different stratified flow simulation types, and increases reliability and accuracy of density flow analysis and research.
Owner:SICHUAN UNIV
Closed rotary maze device for animal memory training system
InactiveCN102144572AOvercome the deficiency of lateral dominanceIn line with normal physiological and behavioral activitiesAnimal housingTaming and training devicesAnimal scienceWater maze
The invention discloses a closed rotary maze device for an animal memory training system. The maze device comprises a round box body and a circuit control system. Key technical points of the maze device are that: the bottom of the box body of the maze device is provided with a turntable driven by a motor; the motor is arranged on a central cylinder, and an output shaft of the motor is in fastenedwith the turntable along the axial direction of the central cylinder; the turntable rotates around the central cylinder under the driving of the motor; the periphery of the lower part of a frame of the box body is provided with a plurality of pulleys for supporting the turntable; and a sieve-shaped supporting net is arranged above the turntable. The maze device overcomes the defect of the lateralization in the detection of the conventional maze devices such as a Y-maze and a T-maze. In addition, a device driven by gradient voltage is removed; the maze device effectively prevents animals from finishing experiments by means of smell, and respective disadvantages of a Morris water maze, the Y-maze and a drought maze are weighted; the starlight detection can be performed through program control according to the nocturnal habits of the experimental animals; and the maze device can ensure that the experimental animals are subjected to sensory stimulation in real environment, which is more favorable for acquisition of experimental data.
Owner:SHENYANG MEDICAL COLLEGE
Gas hydrate thermophysical property simulation experiment device
InactiveCN102042995ASimple structureExperimental effect is goodMaterial heat developmentTime-domain reflectometerProcess engineering
The invention relates to an experimental device, in particular to a gas hydrate thermophysical property simulation experiment device. The gas hydrate thermophysical property simulation experiment device comprises a stirred kettle, a reaction kettle, a gas supply device, a data acquisition unit, a time-domain reflectometer and a thermal pulse emission system, wherein the stirred kettle and the reaction kettle are arranged inside a thermostat and are respectively connected with the gas supply device through a gas supply pipeline; the stirred kettle is communicated with the reaction kettle through a pipeline; and a time-domain reflection probe is arranged inside the reaction kettle and is respectively connected with the data acquisition unit, the time-domain reflectometer and the thermal pulse emission system. The experimental device is practical, convenient and safe, can measure thermophysical parameters by a cross hot wire method and a parallel hot wire method simultaneously, and performs detection through time-domain reflection technology simultaneously.
Owner:QINGDAO INST OF MARINE GEOLOGY
Semantic segmentation method for low-illumination scene
ActiveCN110458844AFast convergenceExperimental effect is goodImage enhancementImage analysisGenerative adversarial networkNetwork model
The invention discloses a semantic segmentation method for a low-illumination scene, and belongs to the technical field of computer vision. According to the semantic segmentation method, a semantic segmentation problem of a normal image is used as a source domain problem; the semantic segmentation problem of the low-illumination image is used as a target domain problem; a feature migration methodin migration learning is used; and the advantage of sufficient information of a normal scene image is brought into full play, and useful information in a normal scene is extracted, and the useful information is converted and combined with feature information of a low-illumination image to obtain more image information beneficial to semantic segmentation, so that a deep neural network is trained. Based on the idea, on the basis of the generative adversarial network, a network model for direct semantic segmentation of a low-illumination scene is designed and realized by utilizing a transfer learning method. By utilizing the model, the semantic segmentation task of the low-illumination picture can be effectively solved.
Owner:DALIAN UNIV OF TECH
Method for rapidly extracting massive data files in parallel based on memory mapping
InactiveCN102231121AImprove efficiencyBreak through the bottleneck of processing speedMultiprogramming arrangementsSpecial data processing applicationsInternal memoryTask mapping
The invention discloses a method for rapidly extracting massive data files in parallel based on memory mapping. The method comprises the following steps of: generating a task domain: forming the task domain by task blocks, wherein the task blocks are elements in the task domain; generating a task pool: performing sub-task domain merger of the elements in the task domain according to a rule of lowcommunication cost, taking a set of the elements in the task domain as the task pool for scheduling tasks, and extracting tasks to be executed by a processor according to the scheduling selection; scheduling the tasks: according to the remaining quantity of the tasks, determining the scheduling particle size of the tasks, extracting the tasks according with requirements from the task pool, and preparing for mapping; and mapping a processor: mapping the extracted tasks to be executed by a currently idle processor. According to the method disclosed by the invention, the multi-nuclear advantagescan be played; the efficiency for an internal memory to map files is increased; the method can be applicable for reading a single file from a massive file, the capacity of which is below 4GB; the reading speed of this kind of files can be effectively increased; and the I / O (Input / Output) throughput rate of a disk file can be increased.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY
Method for hydrogen production and storage through catalysis of water splitting by MOF composite electrode
ActiveCN104131309AHigh hydrogen storage capacityRealize online storageElectrode shape/formsElectricityComposite electrode
The invention relates to a method for hydrogen production and storage through catalysis of water splitting by an MOF (metal-organic framework) composite electrode. The method utilizes the unsaturated metal sites and the porous structure of MOF to conduct electrocatalysis on water splitting so as to produce hydrogen, and the produced hydrogen is stored in an MOF porous material on line, thus realizing integration of hydrogen production and storage. The method greatly reduces the hydrogen production overpotential, is simple in operation and is easy to control, storage and release of hydrogen are realized through charge and discharge, the absorption and desorption conditions are mild, the current efficiency is greater than or equal to 75%, and the electrochemical hydrogen storage capacity can reach 920mAh / g. The method provided by the invention realizes synchronization of hydrogen production and storage, and greatly promotes the research and industrialization process of the water splitting technology for hydrogen production and storage.
Owner:TAIYUAN UNIV OF TECH
A multi-classifier fusion method based on PCA dimension reduction
ActiveCN109447099AReduce modeling timeExperimental effect is goodCharacter and pattern recognitionForward selectionClassifier fusion
The invention discloses a multi-classifier fusion method based on PCA dimension reduction. A feature selection method is applied to the data feature set, involving (step-forward selection method and)a principal component analysis method, and the method constructs a few new features to replace the original features to model, and the stacking algorithm is also applied to the multi-classifier to obtain the optimal classification effect at present in the identity authentication experiment of the user mouse behavior. The multi-classifier fusion method solves the problem that the dimension of the characteristic space of the user mouse behavior is too much when the identity authentication based on the user mouse behavior exists in the prior art.
Owner:XIAN UNIV OF TECH
Electromagnetic law exploration experimental apparatus and experimental method thereof
ActiveCN104867385AImprove the experimental effectExperimental effect is goodEducational modelsPhysicsPotentiometer
The invention relates to an electromagnetic law exploration experimental apparatus and an experimental method thereof and belongs to the electromagnetic variable measurement technical field. The electromagnetic law exploration experimental apparatus comprises a bottom plate and a vertical plate; the rear part of the bottom plate is connected with the dismountable vertical plate; the bottom plate is provided with a power source adapter, a linear Hall element, a transformer, a potentiometer Two and a current meter; 220V alternating current is inputted to the input end of the power source adapter; alternating current and direct current are outputted front the output end of the power source adapter; a millivoltmeter is connected in parallel with two opposite sides of the linear Hall element; the transformer includes a coil One, a coil Two and a coil Three; and the vertical plate is connected with two sets of circuits which are respectively are an electrification self-induction circuit and a de-electrification self-induction circuit. The electromagnetic law exploration experimental apparatus has the advantages of a large number of functions, wide use range, excellent experimental effects and low cost.
Owner:周培宇
Underwater shortest field electrical spark bubble wall pressure load measurement experiment device
PendingCN107063843ASafe to useExperimental effect is goodStrength propertiesNuclear energy generationStrain gaugeStress wave
The invention provides an underwater shortest field electrical spark bubble wall pressure load measurement experiment device. A measurement rod is arranged in a measurement rod protection barrel, penetrates through an opening in a target plate and is in contact with water in a water tank; an underwater electrical spark discharge needle is arranged nearby the target plate; a needle tip of the discharge needle is coaxial with the measurement rod. Electrical spark discharge triggers underwater explosion bubbles, and an explosion load acting on the wall surface of the target plate generates a stress wave in the measurement rod. A signal of the stress wave in the rod is measured by means of a strain gage arranged on the measurement rod, the explosion load acting on the wall surface of the target plate is derived reversely, and an underwater shortest field electrical spark bubble wall pressure load is measured. The whole process of underwater electrical spark bubbles is observed by means of a high-speed camera. The device is safe to use and good in experiment effect, and can research the underwater shortest field electrical spark bubble wall pressure load, thereby providing an effective experiment method for research on an underwater shortest field explosion wall pressure load mechanism.
Owner:HARBIN ENG UNIV
Three-dimensional Douglas-Peucker algorithm based map simulation method for synchronous integration of river network elements and DEM
InactiveCN104978763AComprehensive implementationQuality improvement3D modellingRiver networkData set
A three-dimensional Douglas-Peucker algorithm based map simulation method for synchronous integration of river network elements and a DEM is provided, and the present invention relates to a map simulation method for synchronous integration of river network elements and a DEM. The present invention solves the problem that integration operations of river network and DEM data are not synchronous. The method provided by the invention is realized through the following steps of: 1, after performing hierarchical grading on a river network, and extracting a river network three-dimensional discrete point set; 2, extracting a three-dimensional discrete point set from a DEM; 3, combining the data point sets; 4, performing an integration operation on the combined data set by using a three-dimensional Douglas-Peucker algorithm that is improved by a bend adjustment index, to obtain an integrated data set; 5, re-separating the integrated data set according to a point set attribute; and 6, reconstructing a triangulation network on a DEM point set by using river line segments as constraint edges, to realize steps such as synchronous integration and expression of the two elements. The method provided by the present invention is applied to a three-dimensional geographic information system mapping and integration field.
Owner:CHINA UNIV OF MINING & TECH (BEIJING) +1
Automatic electromagnetic pancake production equipment
InactiveCN106417416AImprove pass rateHeating evenlyOil/fat bakingPancakes bakingEnvironmental resistanceHeat control
The invention discloses automatic electromagnetic pancake production equipment, and belongs to the field of automatic production equipment of pancakes. The automatic electromagnetic pancake production equipment is characterized by comprising the following parts: a metal pancake making plate, a rotary-plate rotating power device, an electromagnetic heating device, a batter distributing device, a uniform scraping device and a pancake dishing-off device. The electromagnetic heating mode is utilized to replace conventional gas or coal combustion heating so as to ensure more uniform heating; thus, no artificial heat control is required, and the use of the equipment is convenient and environmentally friendly. After performing of a large amount of experience summarization and equipment operation experiments, the inventor has come to the conclusion that only scientific technical parameters can ensure perfect match of the batter distributing step, the uniform scraping step and the pancake dishing-off step during the production processes of the pancakes so as to ensure that the shaped pancakes are thin and not cracked, as well as wholly cooked. Tests have proven that the qualified rates of the pancakes produced by the equipment are up to 95% or higher.
Owner:山东蓬发厨具科技有限公司
Short cold crucible for continuous melting and directional solidification flat blank
InactiveCN101122441ANo substantial corrosionThe number of splits is reasonableIncreasing energy efficiencyCrucible furnacesElectricityCrucible
A short cooling crucible used for billet continuous melting and directional solidification relates to a cooling crucible. The invention solves the problems of a present electromagnetic cooling crucible, including adhesion between a melt and an inner wall of the crucible, discontinuous melt melting, poor melt melting, uneven composition, low power utilization and inconvenient observation. The cross section of a red copper crucible main body (1) mentioned by the invention is a flat annular hollow cavity. The upper half body (2) is segmented into eight columns (7), of which the cross sections are petal shape. Vertical deep holes are arranged on the bottom face of the lower half body (3), corresponding to the position of the columns (7) with petal-shaped cross sections. Clearances (8) are arranged between every two adjacent columns (7) with petal-shaped cross sections. The clearances (8) are filed with insulating seal material layers (12). The invention makes the low cost melting and forming with high purified materials realized. Metals float in a water cooling copper crucible and are in soft contact with the inner wall of the crucible. The strong stirring of the electromagnetic powermakes the melt components even.
Owner:HARBIN INST OF TECH
Human reaction sensitivity tester
InactiveCN101589953ASimple structureMaterials are readily availablePsychotechnic devicesTeaching apparatusTester deviceSoftware engineering
The invention discloses a sensitivity tester which comprises a control box, a bracket, an electromagnet, a loop, a delay time relay, a testing ruler, batteries and a button switch, wherein the delay time relay and the batteries are fixed in the control box by screws; the electromagnet and the loop are fixed at the top of the bracket by screws, and the lower end of the bracket is inserted into the control box; and the testing ruler is sucked at the top of the bracket by the electromagnet. The invention has the advantages of easily-obtained materials, simple structure, convenient operation, low cost and more remarkable effect compared with the similar demonstration experiment.
Owner:上海市嘉定区第二中学
Method for extracting and purifying polysaccharides from orange peels
The invention discloses a method for extracting and purifying polysaccharides from orange peels. The method includes the steps of firstly, preparing crude orange peel polysaccharides; secondly, purifying the crude orange peel polysaccharides, to be more specific, performing activated carbon decoloration, and using a Sevag method to perform deproteinization. The method has the advantages that the high-purity polysaccharides are obtained from the orange peels through the simple and efficient experiment method, the prepared polysaccharides have a certain anti-oxidation activity and are high in purity and low in energy consumption, and the high-purity polysaccharides have a huge application value in fields such as medicine, healthcare products and food.
Owner:佛山市海科知识产权交易有限公司
Emotion text classification method
ActiveCN107220293AExperimental effect is goodImprove accuracySpecial data processing applicationsData expansionText categorization
The invention belongs to the field of data mining, natural language processing and information retrieval, and provides an emotion text classification algorithm (Emotion Text Classification, ETC). According to the emotion text classification algorithm, emotion factors and a data expansion sentiment analysis algorithm are combined, the final classification emotion polarity value of an original corpus is obtained through an integrated model. According to the technical scheme, the emotion text classification method includes the steps that 1, a Chinese emotion dictionary is acquired; 2, the strength of stress words and relax words is detected; 3, text emotion classification is conducted; 4, integrated classification prediction is conducted. The method is mainly applied to the field of data mining, natural language processing and information retrieval.
Owner:TIANJIN UNIV
Detachable direct-current motor
The invention discloses a detachable DC motor experimental facility which comprises a rotor (an enamelled wire, a rotor core) stator board, a magnet and a battery. The stator board and the battery are directly pulled on the magnet, thereby saving a circuit and a battery box. The invention has the advantages that the structure is simple, the installation is convenient, the cost is low, and the invention is applicable to grouping experiments for students and has obvious effect compared with similar demonstration experiments, etc.
Owner:姚成兴
Brain computer interface P300 signal characteristic somatosensory evoked device and application method therefor
InactiveCN107066091AOvercoming the disadvantage of inducing inefficiencySolve the problem of not being able to build a visually independent brain-computer interfaceInput/output for user-computer interactionDiagnostic recording/measuringMicrocontrollerBrain computer interfacing
The invention discloses a brain computer interface P300 signal characteristic somatosensory evoked device and an application method therefor. The device comprises an upper computer communication unit and at least one lower computer unit; the upper computer communication unit comprises an USB-to-serial port module; the lower computer unit comprises a single-chip microcomputer, a motor driving unit, a motor unit and a low voltage direct current power supply; the motor unit comprises a plurality of direct current oscillation motors serving as a tactile stimulus source; the single-chip microcomputer is connected to the USB-to-serial port module, and an output end of the single-chip microcomputer is connected to each direct current oscillation motor through the motor driving unit respectively; the output end of the low voltage direct current power supply is connected to a wireless communication lower module, the single-chip microcomputer, and the motor driving unit respectively. The application method comprises the following steps of generating a stimulation sequence L through the upper computer, and implementing stimulating state and non-stimulating state control to each direct current oscillation motor by traversing each periodic sequence group trial in the stimulation sequence L. The brain computer interface P300 signal characteristic somatosensory evoked device and the application method therefor have the advantages of being convenient in use, high in correct classifying rate, good in stability and high in universal property.
Owner:NAT UNIV OF DEFENSE TECH
High-precision air floatation vertical adjusting mechanism based on differential measurement
InactiveCN104019940AHigh measurement accuracyExperimental effect is goodCosmonautic condition simulationsPressure difference measurement between multiple valvesRelative pressureDifferential measurement
The invention provides a high-precision air floatation vertical adjusting mechanism based on differential measurement, and belongs to the field of ground full physical simulation. The high-precision air floatation vertical adjusting mechanism aims at solving the problems that when the pressure of a measuring air cavity of a vertical motion mechanism is measured, due to the fact that the measuring range of a pressure sensor is too large, precision becomes worse, and the degree of nonlinearity and deviation are correspondingly increased. The high-precision air floatation vertical adjusting mechanism is composed of a vertical motion mechanism, a reference pressure air cavity, an absolute pressure sensor and a relative pressure sensor. The reference pressure cavity is formed beside the vertical motion mechanism, the absolute pressure sensor is arranged in the reference pressure cavity, the vertical motion mechanism is composed of a vertical air floatation bearing outer sleeve and a vertical air floatation bearing inner sleeve, a vertical air cavity is formed between the vertical air floatation bearing outer sleeve and the vertical air floatation bearing inner sleeve, and the relative pressure sensor is arranged between the vertical air cavity and the reference pressure cavity. The absolute pressure of the vertical motion mechanism is measured in the mode that the absolute pressure and the relative pressure of the reference pressure cavity are superimposed, high measuring precision is achieved, and the good experiment effect can be achieved.
Owner:HARBIN INST OF TECH
A single slit diffraction experimental demonstration device for physics teaching
ActiveCN109192025ANew form of changeEnhance interestEducational modelsLaser transmitterThermodynamics
The invention relates to the field of teaching appliances, and provides a single slit diffraction experimental demonstration device for physics teaching, including an iron plate; a variable angle adjusting mechanism is fixed on the iron plate, a laser emitter and a projection plate are arranged on two sides of the variable angle adjusting mechanism respectively, the variable angle adjusting mechanism comprises an outer ring and an inner ring coaxially fixed on the upright post, the lower end of the upright post is vertically fixed on an iron plate, a plurality of guide rods are slidably connected on the inner ring, one end of the guide rod pointing to the center of the inner ring is movably connected with two connecting rods with the same structure, two adjacent connecting rods on the adjacent two guiding rods are hingedly connected at the ends pointing to the center of the inner ring through a pin shaft, and the inner side of the outer ring is connected with a gear ring. The single slit diffraction experimental demonstration device for physics teaching can realize continuous collection of diffraction image of laser projection under the condition of continuous change of slit width,and the corresponding diffraction image can be obtained at one time. The device has the advantages of simple operation, small amount of labor, vividness and interestingness, and is helpful to improvestudent interest, and is very suitable for popularization in physics teaching.
Owner:瑞安市任奇科技有限公司
Carbon fiber prepreg interlayer slip force measurement device and method
ActiveCN103913413AReduce usageExperimental effect is goodUsing mechanical meansApparatus for force/torque/work measurementFiberCarbon fibers
The invention discloses a carbon fiber prepreg interlayer slip force measurement device and method. A bearing rack is arranged on a bracket panel of a bracket; two bases for fixing carbon fiber prepreg are positioned in the bearing rack; a base plate of a carbon fiber prepreg slip mechanism is positioned between the two bases and is fixedly connected with a pulley steel wire rope in the carbon fiber prepreg slip mechanism; a pulley is fixed on a connecting plate; the connecting plate is fixed on a machine tool table-board, and the carbon fiber prepreg slip mechanism is driven to move through a machine tool, so that a relative motion is generated between the slipping carbon fiber prepreg and the fixed carbon fiber prepreg. The slip force of the slipping carbon fiber prepreg coated on the base plate is measured through a force sensor of an electronic universal testing machine. The force application is uniform, the heating temperature is easily controlled, the obtained measured data is reliable, and the measurement device is simple in operation, convenient, practical and high in applicability and can be popularized to a slip force measurement experiment of other types of prepreg.
Owner:陕西中科启航科技有限公司
Waste drilling fluid gel breaker system
InactiveCN102464387AExperimental effect is goodLittle environmental changeWater/sewage treatment by flocculation/precipitationAluminium saltsInorganic salts
The invention relates to a waste drilling fluid gel breaker system suitable for a low permeability oil-gas field, which comprises the following components in percentage by weight: 10 to 20 percent of calcium chloride, 5 to 10 percent of aluminum sulfate, 60 to 70 percent of ammonium base stearate and 10 to 20 percent of ammonium dibutyl naphthalene sulphonate. Due to the adoption of the composite gel breaker system, the zeta potential waste drilling fluid is reduced to within a range of 5mV, the aim of breaking a stable colloidal system of the waste drilling fluid is fulfilled, and waste drilling fluid particles are aggregated and precipitated to realize solid and fluid separation. In the composite gel breaker system, organic salt is used as the main component, so that the defect that the application of an inorganic salt gel breaker to increasing of the salt content of the waste drilling fluid is not beneficial to the environment is overcome, underground water is better protected, and the waste drilling fluid gel breaker system is more beneficial to repairing the soil of a well field.
Owner:PETROCHINA CO LTD
Teaching experimental device about influence of air pressure on boiling point
The invention discloses a teaching experimental device about influence of air pressure on a boiling point, comprising an air-tight chamber; a water container is arranged in the air-tight chamber, and a heater used for heating the water container is also arranged in the air-tight chamber; an air compressor, an air pressure controller and a vacuum pump that are successively connected are arranged out of the air-tight chamber; the air compressor, the air pressure controller and the vacuum pump are further respectively connected with the air-tight chamber; a CCD (charge coupled device) camera and a CCD display are further arranged out of the air-tight chamber; the CCD camera is fixed out of the air-tight chamber, so as to collect boiling point change images of water in the water container; and the CCD camera is connected with the CCD display. The teaching experimental device disclosed by the invention not only clearly expresses the influence of the air pressure on the boiling point, but also has a higher safety coefficient.
Owner:四川科业教学仪器设备有限责任公司 +1
Atmosphere corrosion acceleration test method
InactiveCN105928865AEasy to operateExperimental effect is goodWeather/light/corrosion resistanceAutomotive engineeringSeawater
Owner:GUANGDONG OCEAN UNIVERSITY
Quantitative evaluation device for rock permeability damage caused by crude oil asphaltene and application of quantitative evaluation device
PendingCN112014294ASimple structureEasy to operatePermeability/surface area analysisRock coreKerosene
The invention relates to a quantitative evaluation device for rock permeability damage caused by crude oil asphaltene and application of the quantitative evaluation device, and belongs to the technical field of experimental equipment for oil exploitation. The device comprises a constant-speed constant-pressure micro pump, a high-pressure formation oil container, a high-pressure kerosene container,a rock core holder, a filter and a vacuum pump, wherein the constant-speed constant-pressure micro pump is connected with one end of the high-pressure formation oil container and one end of the high-pressure kerosene container, the other end of the high-pressure formation oil container is connected with an inlet of the rock core holder through a back pressure valve a; the other end of the high-pressure kerosene container is connected to an inlet of the rock core holder; an outlet of the core holder is connected with the filter and the vacuum pump; the filter is connected to a back pressure valve b; the back pressure valve a and the rock core holder are connected with a hand pump a; and the back pressure valve b is connected with a hand pump b. According to the present invention, the rockpermeability change amount caused by crude oil asphaltene precipitation and the adsorption amount of asphaltene in the rock core can be measured under the stratum temperature condition, and the experimental data support is provided for evaluation of heavy oil reservoir damage caused by asphaltene deposition.
Owner:中海石油(中国)有限公司深圳分公司 +1
Method for identifying phytophythora infestans physiological race and application thereof
ActiveCN108949899AReduce the need for technical expertiseEasy to operateMicrobiological testing/measurementExperimental researchSolanum tuberosum
The invention belongs to the technical field of plant breeding for disease resistance and in particular relates to a method for identifying phytophythora infestans physiological race and application thereof. The method for identifying phytophythora infestans physiological race disclosed by the invention comprises the following steps: (a) setting a disease nursery field; (b) culturing a potato hostmaterial on a culture medium, and performing water culture to form water culture seedlings; (c) transplanting the water culture seedlings into the disease nursery field in the step (a); and (d) performing disease investigation on potatoes in the step (c), and recording the type of the phytophythora infestans physiological race. The experimental study is performed by selecting natural disease nursery, the advantages of scientificity, effectiveness and environment friendliness are taken into account, the requirement on professional skill is low in the whole experimental process, the operation is simple and feasible, the latter half part of the experiment is transferred into a large field for identification, the experimental effect is obvious, the experimental duration is shortened, and theexperimental accuracy is improved.
Owner:ACAD OF AGRI SCI ENSHI TUJIA MIAOAUTONOMOUS PREFECTURE
System for efficiently sampling automatic release rate
PendingCN109298149AVarious ways to useStrong dissolutionTesting medicinal preparationsMotilityEngineering
Disclosed is a system for efficiently sampling automatic release rates. The system is characterized by comprising a base, a water tank, a vertical moving mechanism, a horizontal moving mechanism, a controller, a display, a sampling support, an inner pipe mounting frame, an inner pipe, a solvent outer pipe, and a solvent outer pipe placing plate. According to the system for efficiently sampling theautomatic release rates disclosed by the invention, intestinal peristalsis is simulated by means of up-down movement, means that the inner pipe moves up and down in the solvent outer pipe is adopted,the solvent outer pipe is used to simulate the gastrointestinal environment inside the human body, and the inner pipe moves up and down inside the solvent outer pipe, so that the dissolution force ishigh; and on the other hand, the system is more suitable for gastrointestinal motility, using the up and down movement to simulate the gastrointestinal motility environment is more appropriate, and the experimental results are good.
Owner:LUGEN INSTR ZHENJIANG
Experiment device for simulating horizontal well deflagration fracturing and experiment method thereof
ActiveCN106950125APrecise experimental control operationEffective data analysisMaterial strength using single impulsive forceInternal pressureRock core
The invention relates to an experiment device for simulating horizontal well deflagration fracturing and an experiment method thereof. The experiment device comprises a rock sample clamping device, a pendulum bob impacting device, and a control analysis device. The rock sample clamping device comprises a cylinder. Rock cores with different characteristics can be placed in the cylinder. The cylinder is provided with a borehole internal pressure inlet opening, a confining pressure inlet opening, an air outlet, and a seepage channel outlet. The pendulum bob impacting device comprises a pendulum bob, an electric motor, and a roller. The electric motor drives the roller to rotate. The roller pushes the pendulum bob to knock a moving plunger on one side of the cylinder so as to load impact force onto the rock cores in the cylinder; confining pressure is loaded through the confining pressure inlet opening; and internal pressure is loaded through the internal pressure inlet opening. Through the provided experiment device, the destruction of deflagration impact in a horizontal well on rock cores with different characteristics and lengths can be researched; at the same time, the experiment operation can be precisely controlled, data can be effectively analyzed, and the experiment effect is good and prominent.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Method for simulating exploitation of worked-out section and device for achieving method
ActiveCN104614505ASimulation experiments are easy to implementEasy to implement simulation experimentsEarth material testingParaffin waxClassical mechanics
The invention discloses a method for simulating the exploitation of a worked-out section, and solves the problems that an iron box-pull-out method and a paraffin-resistor burn melt method are difficult to realize and the experiment effect is poor in the prior art. The method comprises the following steps: (1) arranging a plurality of rubber pipes and laying the rubber pipes according to the size of a to-be-simulated worked-out section; (2) fully filling each rubber pipe with flowing filling substances, knotting two end parts of each rubber pipe, and winding the knotted positions by utilizing steel wires; (3) laying a rock layer on the laid rubber pipes which are fully filled with the flowing filling substances, and exposing the end part of one section of each rubber pipe out of the upper rock layer; (4) cutting off the end part of one end, exposed out of the upper rock layer, of each rubber pipe; (5) inserting a hollow pipeline into each rubber pipe from the cut-off end part of the rubber pipe, so that the flowing filling substances in the rubber pipes can flow out from the hollow pipeline; and (6) repeating the step (5), so that the exploitation of the worked-out section can be simulated. The method is convenient and simple to realize, and good in experiment effect and is suitable for being popularized and applied in a large range.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
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 Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com