Results 211 to 220 of about 2,035,653 (257)
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Predicting young children's quality of life
Social Science & Medicine, 2003This paper represents an investigation into the determinants of young children's quality of life (QOL) in Thailand. The empirical work is based upon a sample of 498 children (aged 5-8); 220 were urban children and 278 children of construction workers in Bangkok. Their QOL was assessed using a new self-report QOL measure for children.
Pragai, Jirojanakul +2 more
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1998
Abstract : The Air Force Research Laboratory requires a method for predicting the relative life of O-rings produced by different manufacturers. O-rings manufactured to the same MIL-spec from different manufacturers usually use different material formulations. Differences in formulations can result in different properties as the O-rings age.
John P. Wesson, Brice N. Cassenti
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Abstract : The Air Force Research Laboratory requires a method for predicting the relative life of O-rings produced by different manufacturers. O-rings manufactured to the same MIL-spec from different manufacturers usually use different material formulations. Differences in formulations can result in different properties as the O-rings age.
John P. Wesson, Brice N. Cassenti
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Can Adolescents Predict Significant Life Events?
Journal of Adolescent Health, 2007We examine whether adolescents' probability judgments for significant life events are predictive and accurate. We find significant correlations with actual experiences, reported on successive waves of a national survey. Mean probability judgments approximated observed outcome rates, or were optimistic, except that adolescents greatly overestimated ...
Wändi Bruine, de Bruin +2 more
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Damage Monitoring, Life Prediction and Life Extension
1987In this paper the concept of in-situ, on-line damage monitors for use in service components where safety, high performance or severe environmental requirements is described. Particular attention is given to applications where low cycle fatigue is of concern.
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Fatigue Life Prediction Models
2011Chapter 4 deals with low cycle fatigue tests and derivation of fatigue life prediction models curve-fitted to the fatigue test data for Sn–Ag–Cu and Sn–Cu solder alloys. The fatigue tests were conducted under low cycle fatigue test conditions over a wide range of isothermal temperatures (−40°C to +125°C) and frequencies.
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Thermal fatigue life prediction
Materials Testing, 2004Abstract For clarifying the behavior of thermal fatigue and verifying the role of Coffin-Manson’s law in thermal fatigue, out-of phase type thermal fatigue tests were carried out on ferritic ductile cast iron. As a result of the tests, the dependence of thermal fatigue life and the plastic strain produced in each cycle on cyclic peak ...
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Journal of Applied Physics, 1960
On the basis of the relation between the ``reliability-function'' (probability of surviving beyond age N in cycles or t in time) and the ``risk'' of failure (as a function of age), the physical interpretation of the latter can be used to extrapolate the former beyond the range of possible observation.
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On the basis of the relation between the ``reliability-function'' (probability of surviving beyond age N in cycles or t in time) and the ``risk'' of failure (as a function of age), the physical interpretation of the latter can be used to extrapolate the former beyond the range of possible observation.
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2001
Abstract In the design of composite structures for durability and damage tolerance, the primary concerns are out-of-plane failures, such as delamination, material degradation associated with environment, stability under compression loading, large degree of scatter in fatigue life, and bearing failure of joints.
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Abstract In the design of composite structures for durability and damage tolerance, the primary concerns are out-of-plane failures, such as delamination, material degradation associated with environment, stability under compression loading, large degree of scatter in fatigue life, and bearing failure of joints.
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Predicting the Dimensions of Life Satisfaction
Journal of Gerontology, 1976Taking multidimensional life satisfaction as the basic premise of this study, a four-equation multiple regression model was constructed for its prediction. The set of regressors included some conventional biographical characteristics, a number of activity variables, and three indicators of retirement experience.
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Bayesian Fatigue Life Prediction
1985Fatigue failure is an important failure mode for offshore structural joints, in particular for dynamically sensitive deep water structures. To predict the fatigue life only a few test results are generally available for the actual type of joint. In addition, however, test results for joints with slightly different geometries are available. Fatigue life
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