Results 251 to 260 of about 3,067,916 (305)
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An experimental analysis of delayed posttraumatic stress
Behaviour Research and Therapy, 1984Abstract Three self-report anxiety questionnaires were administered to a sample of Lebanese undergraduates shortly before the Israeli invasion of Lebanon in 1982. Six months after the disengagement of forces, the investigator located 20 S s who had remained in West Beirut throughout the siege and 35 S s who had evacuated to safer environs.
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Experimental Stress Analysis of Rails
Proceedings of the Institution of Mechanical Engineers, 1965The paper describes the experimental stress analysis of a range of rail sections and a fishplated joint carried out by means of a loading frame which accommodated a short length of track, hydraulic jacks with load cells, and electrical resistance strain gauges. The most detailed test was that of the B.S. 110A rail which after being tested ‘as rolled’
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Experimental Stress Analysis for Materials and Structures
2015The contents presented in this book are, in the opinion of the authors, an essential conceptual basis for the training of professional mechanical engineers in the fi eld of experimental methods applied to theory of structures. Our intention is not to give an overview of all the experimental methods used in stress analysis, as we present only those that ...
FREDDI, ALESSANDRO +2 more
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Experimental dynamic deformation analysis of active stressed lap
Applied Optics, 2016We introduce a method to measure the dynamic surface deformation of an active stressed lap for fabricating a 4 mf/1.5 mirror. Lap surface accuracy working in some typical deformation velocities is put forward. Experimental results indicate that dynamic lap surface accuracy is worse than that of a static surface, and dynamic surface accuracy gets ...
Hongshen, Zhao +3 more
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Experimental analysis of LEDs'reliability under combined stress conditions
2011 IEEE International Instrumentation and Measurement Technology Conference, 2011There are many practical situations in which the reliability of a device cannot be correctly predicted by considering only a single stress. In these cases, the use of a more complicated life model working with multi-stress is needed: in practice, taking into account two stresses provides good results in several real applications.
ALBERTINI, ANDREA +4 more
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Technique of Experimental Stress Analysis
1985The surface-coating method of photoelasticity is a relatively new technique in experimental stress analysis that has been applied here probably for the first time in biomechanics research. It permits the measurement of surface strains on three-dimensional bodies.
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Experimental Stress Analysis in Three Dimensions
Journal of the Aerospace Sciences, 1962The ideal mesh should consist of the smallest practicable refer ence spheres. These will need to be supported while the model is cast. The supports may be thin wires, which are retracted after solidification. As an alternative, flexible elastic fibers may be used to form a grid; but if a series of grids is desirable, as in the general three ...
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Ceramic Coatings for Experimental Stress Analysis
1958This paper presents a brief history and development of resin-base brittle coatings for experimental stress analysis. These coatings have been in use for a number of years but are limited in operation to temperatures up to approximately 100 F. A new series of ceramic-based materials has been developed which will operate from approximately
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Experimental Stress Analysis at Plastic Deformations
1986The technical progress in continuous casting of steel and in application of hardly-deformable materials is intimately associated with new requirements for analysing the state of stress at plastic deformation during the forming process. Little success was reached hitherto with exact analytical solution of that problem; for this reason, solution by means
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Plant hormone regulation of abiotic stress responses
Nature Reviews Molecular Cell Biology, 2022Rainer Waadt +2 more
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