Results 101 to 110 of about 514,588 (251)
Jixie chuandong, 2013 The internal flaws in gearswhich occur during manufacturing and service have great effect on operation safety of equipments.A scheme of automatic ultrasonic testing based on the XYmotion platformis presented,and the corresponding automatic ultrasonic ...
吕铎, 杨岳, 李雄兵, 刘希玲
doaj
Material Characterization of Fiber-Reinforced Composites Using Air Coupled Ultrasonic Polar Scans
Research and Review Journal of Nondestructive TestingThe widespread use of fiber-reinforced composites is partly due to their high weight-specific mechanical properties. Due to their complex structure, however, there are high demands on quality assurance.
Julian Würthner, Marc Kreutzbruck
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Inspection of composites using a computer-based real-time radiographic facility [PDF]
A radiographic inspection facility was developed at the NASA Lewis Research Center. The facility uses a digital computer to provide enhanced images in near real-time.
Roberts, E., Jr., Vary, A.
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Indian Journal of Ophthalmology, 1992 Pilocarpine and Homatropine are the drugs having known effect on the depth of anterior chamber. The purpose of this study was to demonstrate the time of onset, peak effect and its duration of action as well as shallowing/deepening of the anterior chamber,
Mehrotra A, Gupta ILA, Chouhan B
doaj
SensorsIn order to achieve the non-destructive testing and quality evaluation of stainless-steel resistance spot welding (RSW) joints, a portable ultrasonic spiral C-scan testing instrument was developed based on the principle of ultrasonic pulse reflection.
Liang Yang +6 more
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ElectronicsThe use of artificial intelligence in diverse diagnosis areas has significantly increased in the past few years because of the advantages it represents in clinical routine. Among the diverse diagnostic techniques, the use of ultrasounds is often preferred because of their simplicity, low cost, non-invasiveness, and non-ionizing characteristic. However,
Mário Santos +3 more
openaire +2 more sources
Computer automation of ultrasonic testing [PDF]
Report describes a prototype computer-automated ultrasonic system developed for the inspection of weldments. This system can be operated in three modes: manual, automatic, and computer-controlled.
Dunmyer, D. +7 more
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CODSTRAN: Composite durability structural analysis [PDF]
CODSTRAN (COmposite Durability STRuctural ANalysis) is an integrated computer program being developed for the prediction of defect growth and fracture of composite structures subjected to service loads and environments. CODSTRAN is briefly described with
Chamis, C. C., Smith, G. T.
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The detection of tightly closed flaws by nondestructive testing (NDT) methods [PDF]
Liquid penetrant, ultrasonic, eddy current and X-radiographic techniques were optimized and applied to the evaluation of 2219-T87 aluminum alloy test specimens in integrally stiffened panel, and weld panel configurations.
Mullen, S. J. +3 more
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Assessment of probability of detection of delaminations in fiber-reinforced composites [PDF]
Delamination is one of the critical defects in composite materials and structures. An ultrasonic C-scan imaging technique which maps out the acoustic impedance mismatched areas with respect to the sample coordinates, is particularly well suited for ...
Chern, E. J., Chu, H. P., Yang, J. N.
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