33results about How to "The experimental results are accurate and reliable" patented technology

The invention discloses direct-driven centrifugal separation equipment. The equipment is characterized by comprising one or more components of a centrifugal rotary table or a centrifugal rotary barrel (A), a centrifugal rotary drum or a centrifugal rotor (B), a centrifugal liquid collection cavity (C) and a driving system (D). The direct-driven centrifugal separation equipment has the advantages that the size of the centrifugal rotary drum can be changed freely according to needs, and the centrifugal rotary drum can be placed in and taken out easily and conveniently; the centrifugal liquid collection cavity serving as a system main body is integrally manufactured through the integral forming technology, the manufacturing process is simple, and the cost is low; the whole centrifugal system is simple, practical, capable of saving energy, environmentally friendly and convenient to apply and popularize.

The invention discloses a method used for identidying material anisotropic plasticity parameters based on spherical impression morphology. According to the method, a spherical impression equipment isadopted for indentation test of a test piece so as to obtain impression morphology response information left on test piece surface; orthogonal decomposition and parametric approximation are adopted soas to obtain a value model used for representing the relationship of the material anisotropic plasticity mechanical property parameters with the impression morphology response information, reverse derivation constraint optimization problem is adopted so as to obtain the anisotropic plasticity mechanical property parameters of the material to be test through reverse derivation. In applications, the spherical impression morphology information obtained in the indentation experiment is input into the value model, and the anisotropic plasticity mechanical property parameters of the material to betest are obtained through certain steps of calculation. The method can be used in anisotropic material small size sample detection, nondestructive test, and material in-suit test, and the accuracy ofmaterial anisotropic plasticity parameters obtained via reverse derivation using the method is high.

The invention discloses a tunnel lining structure uniform load test system and a sealing method thereof. The tunnel lining structure uniform load test system comprises a pressurizing system, a model box and a tunnel lining arranged in the model box, the pressurizing system is a steel frame pressurizing system and mainly comprises a side beam, a top beam and an oil cylinder, the model box comprises six panels and a force transferring plate, a pulley is arranged at the bottom of the force transferring plate, the tunnel lining is arranged in the model box, the space between the model box and the tunnel lining is filled with water, oil or lubricating grease, the model box is a sealed model box, a force transferring medium is changed, so that the sealing performance of the model box is improved, approximate uniform pressurizing at the back of the lining can be realized, load pressure at the back of the lining can be directly controlled, a large-scale similar model test can be realized, and the tunnel lining structure uniform load test system can be used for researching distress tunnel lining structure carrying performance, a lining crack expanding test and a large-scale flexible stabilization (carbon fibers and steel belt) test in tunnel lining carrying performance and structural design and operation.

The invention relates to a technology for culturing aseptic seedlings of plants and application thereof, particularly suitable for seedlet plants such as model plant arabidopsis thaliana, medicinal plant artemisia annua, fruit and vegetable tomato, pepper and the like. The method gets rid of the disturbances of other microbes in the environment and is particularly suitable for searching mutual action between the plants and the microbe. The method comprises steps of: preparing nutritious substrates for seed germination and seedling growth, sterilizing the surfaces of the plant seeds, and germinating the plant seeds. The method is a convenient and efficient g method for culturing aseptic seedlings of plants and has low cost; in addition, the method is free of sterilizing agent residual, thereby ensuring the reliability and accuracy of subsequent research results.

The invention provides an experimental method for researching the fracture reorientation in the oriented perforating and fracturing process. The experimental method comprises the following steps of: A, making a test piece by a core exposure cube of which the side edge is greater than or equal to 1m; B, then arranging the test piece in a three-axis stress loading device and sequentially carrying out oriented perforating and fracturing on the test piece under the three-axis stress loading condition; and C, after carrying out fracturing, analyzing the test piece. The experimental method provided by the invention has a more reliable test result and is convenient to observe a fracture extension rule.

The invention relates to an animal sleep deprivation device and application of the animal sleep deprivation device. The animal sleep deprivation device is provided with a stimulation occurrence base plate and a multi-lead program control instrument. The stimulation occurrence base plate is sequentially provided with a sieve plate, a stimulation plate and a supporting plate from top to bottom. The sieve plate is provided with sieve holes. The upper end face of the stimulation plate is provided with stimulation columns which correspond to the sieve holes in position and can penetrate through the sieve holes. A mechanical power device is arranged between the stimulation plate and the supporting plate, and is connected with the multi-lead program control instrument through a guide line. The multi-lead program control instrument is provided with a switch key, a guide line interface and a parameter adjusting panel. When the animal sleep deprivation device is used for building an insomnic animal model, no harmful stimulation is produced on experimental animals, experimental results are more accurate and reliable, the repeatability is good, multiple insomnia models can be obtained, and operation is convenient. The animal sleep deprivation device is simple in structure and low in cost.

The invention discloses a tire pattern drainage test platform and an experimental method, comprising a bottom frame, on which a rotary belt device for simulating the road surface is installed, and a wheel hub is installed above the rotary belt device, so that Tires are installed on the hub, and the hub is driven to rotate by a motor, and the motor is fixed by a cantilever; a water reservoir is also installed on the chassis, and the water reservoir The water pipe interface, the air pipe interface and the water outlet pipe are installed; the water pipe interface is connected to the water inlet pipe, the air pipe interface is connected to the air pump, and the water outlet of the water outlet pipe is directly facing the circumferential surface of the tire; when the water volume in the water reservoir is constant, just adjust the output air pressure of the air pump The amount of water spray is varied; cameras are mounted on one side of the tire and floodlights are mounted on the opposite side.

The invention relates to an evaluation method of a crude oil paraffin inhibitor, and belongs to the technical field of oilfield chemistry. The evaluation method of the crude oil paraffin inhibitor comprises the following steps: 1) taking a test sample: taking a crude oil emulsion as the test sample, wherein water in the emulsion is not separated in the scene; 2) adding a paraffin inhibitor: weighing a container, adding the test sample into the container, sealing the container and keeping constant temperature to the oilfield scene temperature, adding the paraffin inhibitor into the container, shaking and vibrating the container; 3) weighing paraffin sticking to the container wall: performing constant temperature treatment on the container containing the paraffin inhibitor and the crude oil emulsion under the condition of the in situ temperature of the oilfield, placing the container upside down under the condition of constant temperature, and weighing the container after the container is placed upside down; 4) carrying out a blank test: carrying out a blank test without adding the paraffin inhibitor at the same time; 5) calculating the paraffin inhibiting ratio: calculating the paraffin inhibiting ratio according to the following formula: X1= (m1-m2)/ m1*100 %. The evaluation method has the advantages of being simple and convenient, quick, reliable in data, and capable of screening and evaluating paraffin inhibitors applicable to oilfield more accurately, can slow down the precipitation of paraffin, and guarantees the normal production and operation of the oilfield.

The invention provides an unstable-state titration device and method for testing medium-high permeable core liquid permeability. The device comprises a standard container, a core clamp, an ISCO pump,a pressure sensor and a liquid receiving pipe, the standard container is connected with an upstream-end inlet of the core clamp by an inlet valve through a pipeline, and an outlet of the core clamp isconnected with the liquid receiving pipe by an outlet valve through a pipeline; the upstream end of the core clamp is connected with an emptying valve, and the ISCO pump is connected with annulus ofthe core clamp by the pressure sensor through a pipeline. The unstable-state titration device and method are low in requirements on experimental hardware, simple in operation and accurate and reliablein experimental result, the objective of quickly, effectively, conveniently, quickly and accurately testing medium-high permeable core liquid permeability is achieved, and acquired testing results can provide basic data for medium-high permeable reservoir evaluation and capacity research.

The invention discloses a supersonic aircraft wave resistance measurement device based on laser energy deposition resistance reduction. The supersonic aircraft wave resistance measurement device basedon laser energy deposition resistance reduction comprises a shock tunnel, a blunt body and a laser energy loading system; the blunt body is contained in the shock tunnel, and the shock tunnel generates bow shock waves at the front end of the blunt body; a light path penetrates through the shock tunnel and generates detonation waves at the bow shock waves; and the blunt body is used for detectingpressure values at acting points of the bow shock waves and the detonation waves. The measurement device has the advantages that the response speed is high, a flow field structure can not be destroyed, and control is flexible.

The invention provides a crevice corrosion experiment device and method capable of regulating and controlling the size of a crevice in real time in situ. The device comprises an experiment tank, a cover plate and a range finder, the top of the experiment tank is provided with an open end, an electrolyte is arranged in the experiment tank, and a working electrode, a reference electrode and a counter electrode are arranged in the electrolyte; the cover plate can do reciprocating rectilinear motion in the vertical direction and can also do reciprocating rectilinear motion in the horizontal direction. The ranger finder is used for measuring the distance of the cover plate doing reciprocating rectilinear motion in the vertical direction. The gap width is accurately controlled through reciprocating motion of the cover plate in the vertical direction, and real-time regulation and control of the gap width are further achieved; according to the invention, the development condition of crevice corrosion can be directly observed and recorded; the experimental device simulates crevice corrosion under the working condition of crevice area change through reciprocating motion of the cover plate inthe horizontal direction, is convenient to use and scientific and rigorous in experimental result, truly reflects the development situation of crevice corrosion in real time, and has important academic values for enriching and developing crevice corrosion related research.

The invention discloses a pipe flow type coating material erosion resistance performance experiment device and method. The pipe flow type coating material erosion resistance performance experiment device comprises a solid phase supply module, a circulation pipeline and a pipe flow type erosion module, wherein the solid phase supply module comprises a mixing box, a motor and a mixing blade; the starting end and the terminal end of the circulation pipeline are both connected with the solid phase supply module; the pipe flow type erosion module comprises an outer pipe, a test sample clamping device and a support seat. The experiment method comprises the following steps of regulating the solid phase content of multi-phase flow and the flow rate of the multi-phase flow; regulating the test sample clamping device to perform material erosion experiments; performing quality and appearance detection on the test samples subjected to erosion; and evaluating the erosion resistance performance. Thedevice and the method disclosed by the invention have the beneficial effects that the particle supply of the solid phase supply module is uniform; the material erosion environment is more similar tothe industrial practice; and the accurate experiment on the long-time erosion resistance performance of a plurality of test samples in the same batch under the conditions of different multi-phase fluid, different erosion angles and different erosion speeds can be realized.

The invention provides a device for measuring the migration mass of vaporous water in unsaturated soil. The device comprises a base, a cutting ring, a spacing gasket, a filter paper fixing gasket, filter paper, a pull rod and a nut. The cutting ring is detachably embedded into the base; a soil sample is contained in the cutting ring; the spacing gasket is mounted at the upper part of the base; andthe filter paper fixing gasket is mounted at the upper part of the spacing gasket. The device is of an up-and-down symmetrical structure and is connected into a whole through the pull rod and the nut. The device is simple in structure, easy to implement, convenient to operate and low in cost, facilitates measurement of the migration mass of the vaporous water in soil samples with different heights, different water contents and different densities at different distances, different time and different temperatures, ensures that an experimental result is accurate and credible, and is an efficientand practical device for measuring the migration mass of the vaporous water in the unsaturated soil.

The invention provides a device and method for dynamically evaluating the influence of additives on hydrates for a long time. The device comprises a temperature control system consisting of a low-temperature circulating bath and a temperature sensor; a gas circulation system consisting of a gas source, a return storage tank, a servo booster pump, a first buffer tank, a second buffer tank, a precision flowmeter, a pressure regulating valve and a flushing tank drying pipe; a hydrate generation system consisting of a reaction kettle, an upper end cover, a lower end cover and a stirring rotor; anda data recording and monitoring system consisting of a camera, a computer, the temperature sensor and a pressure sensor. By observing hydrate formation, decomposition and aggregation conditions, theinfluence of various drilling fluid additives on hydrate formation is evaluated, and a reference is provided for preventing and solving the problem of hydrate blockage in a wellbore and a pipeline inhydrate exploration and development and flow guarantee. The device has the advantages that hydrate formation is monitored within a long time span, the hydrate formation rate is monitored in real time,emission of experimental gas is reduced, and thedevice is efficient, capable of saving energy, high in measurement precision and the like.

The invention discloses processing equipment capable of replacing lug wings and having an anti-falling test function, and relates to the technical field of special-shaped component processing detection, in particular to a base, an internal expansion clamping mechanism, a puncture detection mechanism, an expansion locking mechanism and an alicyclic ring, and the alicyclic ring is connected to the bottom end of an expansion sleeve. In the processing equipment capable of replacing lug wings and having an anti-falling test function, the internal expansion clamping mechanism is arranged, the mechanism is specially designed according to material characteristics and annular structural characteristics of replaceable lug wing material elastic rubber, by rotating the adjusting handle, the screw meshed with the adjusting handle is subjected to downward driving force relative to the adjusting handle component, the spherical pin is driven to extrude the three sliding columns arranged at the bottom end of the guide groove, the shape of the supporting pieces arranged at the output ends of the tops of the sliding columns is matched with the shape of the end face of an inner hole of the to-be-detected replaceable lug wing material, it is guaranteed that the to-be-detected replaceable lug wing material is clamped stably, and it is avoided that the experiment precision is affected by loosening and slipping in the detection process.

The invention discloses automatic equipment with an antifouling sleeve mounting function for a mouse wheel, and relates to the technical field of special-shaped component machining and detection. The automatic equipment specifically comprises a mechanical arm, a pneumatic synchronous clamp, a torsion conveying mechanism, a lifting rotating mechanism and a multidirectional testing mechanism, and one side of the mechanical arm is connected with the pneumatic synchronous clamp. According to the automatic equipment with the antifouling sleeve mounting function for the mouse wheel, the multi-directional testing mechanism is arranged, a servo motor drives a driving gear to rotate through a bearing seat at the top end of a base, under the meshing action of the driving gear and driven gears, the driven gears slide in a guide groove which is located at the top end of the base and formed by a triangular boss and a bearing seat through rollers connected with the bottom ends of guide rods penetrating through the end faces of the two sides of the driven gears, so that overturning of test plates at the top ends of the guide rods is achieved, a user can replace different test cards through double-face toggle clips according to experiment requirements, therefore, the adaptive capacity of the mouse wheel to different pollutants is tested, and the experimental result is more accurate and reliable.

The invention discloses a method for rapidly detecting EGFRvIII mutation. EGFRvIII RNA is used as a starting template of a reaction, redundant intron sequences in an EGFRvIII DNA sequence are avoided,and a probe crosses a fusion site of an EGFRvIII exon, so that interference of genome DNA is effectively avoided, and a detection result is more accurate; reverse transcription and real-time PCR share one reaction system, which avoids pollution possibly caused by repeated cover opening compared with traditional detection that carries out amplification by using cDNA as a template after reverse transcription; by changing fluorophores, a housekeeping gene ACTB is introduced into a single system, so that the risk of false negative is reduced, and the risk of false positive is reduced by identifying the result of [delta]Ct; a designed PCR product is relatively small, so that a paraffin-embedded sample with a high degradation degree can meet detection requirements, and meanwhile, the detectionresult can be in correspondence with an EGFRvIII immunohistochemical result of the same tissue sample. The method is simple in operation, and guarantees credibility and accuracy of the detection result.