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369 results about "Visual test" patented technology

Rational Visual Test 6 was also sold as part of Rational DevelopmentStudio bundle. Visual Test was integrated with other Rational products: Purify, and Quantify, PureCoverage and ClearCase. Rational remained committed to fully support Visual Test through 2002. The last version shipped was 6.5.

Liquid drop and solid plate oblique collision testing device

The invention relates to a testing device in the aviation field, in particular to a liquid drop and solid plate oblique collision testing device. The problems that an oil drop and cavity wall collision visual test cannot be carried out in an existing aircraft engine bearing cavity test platform, the physical variance of the adjustment scopes of parameters such as liquid drop sizes of other liquid drop and solid wall face collision testing devices and a bearing cavity project is large, the device is complex in structure and high in cost are solved. According to the technical scheme, the liquid drop and solid plate oblique collision testing device is built and comprises a supporting frame, a liquid drop generation component, an angle-adjustable solid plate component, an oil return component and a lighting pick-up system, the dropping diameters of liquid drops are changed by changing syringe needles of the liquid drop generation component, and the dropping speed of the liquid drops is changed by changing the distance between the liquid drop generation component and a collision plate in a sliding mode; oblique angles of the collision plate can be continuously changed. By means of the liquid drop and solid plate oblique collision testing device, the splashing critical working condition caused after the liquid drop and solid plate oblique collision happens is conveniently determined, visual observation on the oil drop and cavity wall collision can be achieved, and cost is reduced.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

One-step nucleic acid test method based on CRISPR/Cas and isothermal amplification and kit

The invention discloses a one-step nucleic acid test method based on CRISPR/Cas (clustered regularly interspaced short palindromicrepeats/CRISPR-associated protein) and isothermal amplification and akit. The method is a quick field test method used for testing nucleic acid and displaying visual test results through fluorescent light or lateral side immunochromatographic test paper. The test accuracy is effectively ensured through specificity of crRNA (RISPR-derived ribonucleic acid); at a room temperature, whether a test sample contains test nucleic acid can be determined through the test paper or the fluorescent light within 1-2h; and compared with the traditional test method, the precision, simplicity and convenience in operation of the test method are improved to some extent. The kit with purified freeze-drying LbaCas12a, crRNA and RPA (recombinase polymerase amplification) can be formed; a nucleic acid segment of a specific sequence can be conveniently and quickly tested on site;a complicated temperature control instrument such as a PCR (polymerase chain reaction) instrument and other electrophoresis and centrifugation equipment are not required; and nucleic acid of the specific sequence can be tested quickly and sensitively only by a thermostatic device and fluorescence detection equipment and even visual observation.
Owner:SOUTH CHINA UNIV OF TECH

Visual test device for simulating shield underneath pass existing tunnel construction

ActiveCN110954676AOptimizing Construction Control MeasuresForce measurementMaterial analysis by optical meansVisual testControl system
The invention discloses a visual test device for simulating shield underneath pass existing tunnel construction. The visual test device comprises a model box, an existing tunnel model, an adjusting system and a test process measuring system. A simulation stratum prepared from transparent soil is arranged in a model box, and all simulation construction processes are carried out in the model box. Existing tunnel models are simulated through polyethylene plastic pipes according to the elastic modulus similarity principle, model tunnels penetrate through the model box, and the two end faces of each tunnel are fixed to the two sides of the inner surface of the model box. The adjusting system is designed to be a sectional type movable door adjusting system. The test process measurement system iscomposed of six subsystems including a movable door displacement measurement control system, a soil body surface settlement measurement system, a soil body internal moving field measurement system, asoil pressure measurement system, a tunnel surface pressure distribution test system and a tunnel displacement measurement system. Data collected by each subsystem is provided for a computer PC for data analysis. The invention is used for researching the stratum disturbance action mechanism in the whole shield underneath pass construction process.
Owner:TONGJI UNIV

Fractured rock mass grouting simulation visual test system and test method considering stress effect

The invention discloses a fractured rock mass grouting simulation visual test system and test method considering a stress effect. The system comprises a pressure supply device, a constant-pressure slurry discharge device, a fractured rock mass stress simulation device, a fractured rock mass test device, a tail water collection device and a data monitoring device, the fractured rock mass stress simulation device comprises a reaction frame and jacks, and the jacks in different directions can be used for applying pressure to a fractured rock mass sample in the fractured rock mass test device, sothat the dead weight and the tectonic stress are simulated. According to the invention, the flowing state of the slurry in the fractured rock mass under the combined action of dead weight and tectonicstress can be simulated; the migration and diffusion process of the slurry and the changes of the flow velocity and pressure of the slurry at different positions are observed; the defect that in theprior art, the initial crustal stress effect and the slurry movement process visualization cannot be considered is overcome, and meanwhile the slurry flowing process in the fractured rock mass under the influence of various parameters such as different grouting pressures and slurry characteristic fracture inclination angles can be simulated.
Owner:INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA +1

Visual test device for damaged form of pile-soil contact surface of specially-shaped pile and use method

The invention provides a visual test device for a damaged form of a pile-soil contact surface of a specially-shaped pile and a use method. The test device comprises a bearing platform, a model pile, a model tank, a water bath tank, a temperature control system, a laser source and a digital camera device, wherein the model pile is arranged as a full-scale specially-shaped pile and is arranged in the model tank; transparent soil is arranged on the periphery of the model pile; the model tank is arranged in the water bath tank; a rotating shaft hole is formed on the bottom of the model tank while a rotating shaft is arranged in the model tank; the rotating shaft is used for driving the model pile to generate vertical displacement or torsional displacement; the temperature control system is matched with the water bath tank and is used for adjusting the temperature of the pile-soil contact surface; and the laser source and the digital camera device are arranged on the upper side and side wall of the model tank. According to the visual test device provided by the invention, the visual observation for shear deformation of concave surface of the cross section of the specially-shaped pile can be realized; the shearing damage characteristics of different loading modes, different temperatures and different piles can be compared; the visual test device has significance in research on shearing of the contact surface of the full-scale model pile; the visual test device provided by the invention has the advantages of simple structure, convenience in operation, easiness in realization and lower cost.
Owner:HOHAI UNIV
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