Results 271 to 280 of about 13,579,615 (311)
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Costs of Age Replacement under Accelerated Life Testing with Censored Information
2022Accelerated life testing (ALTg) helps manufacturers to predict the various costs associated with the product under the warranty policy. The main aim of undertaking ALTg is the extended time of today’s manufactured goods, the small-time among design and make public, and the difficulty of analysis of items that are continuously used in ordinary ...
Intekhab Alam +4 more
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Methods of Testing Pharmacological Drugs Effects on Aging and Life Span in Mice
2013The methodology of testing antiaging drugs in laboratory mice is presented. It is based on more than 40-year-long authors' experience in the field and includes the selection of mouse strain, sex, age at start of treatment, housing conditions, design of the long-term study, some noninvasive methods of assessment of biomarkers of aging, life-span ...
Vladimir N, Anisimov +2 more
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Negative life events and the adjustment of school-age children: Testing protective models
Journal of Clinical Child Psychology, 1998Investigated the association between negative life events and protective factors in predicting the adaptive, emotional, and behavioral functioning of school-age children. Three possible models of this relation were tested using hierarchical analyses: the compensatory model, the challenge model, and the immunity/vulnerability model.
Y, Jackson, P J, Frick
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Testing Generational, Life Cycle, and Period Effects of Age on Agenda Setting
Mass Communication and Society, 2013This study explores the relationship between age and the media's agenda-setting effects both by cross-sectional and longitudinal analysis. Using American National Election Studies surveys and the New York Times Index data from 1960 to 2004, we test three possible effects of age on the agenda-setting process: generational, life-cycle, and period effects.
Jae Kook Lee, Renita Coleman
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Accelerated aging and life tests of optical fibers
2000The reliability of the network optical fibers is a critical issue for telecommunications.New investigations methods have been developed within a cooperative program supported by France Telecom. They include low coherence interferometry and optical near field microscopy in association with classical analysis tools such as Scanning Electron Microscopy ...
Berguiga, Lotfi +14 more
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Ageing assessment of supercapacitors during calendar life and power cycling tests
2009 IEEE Energy Conversion Congress and Exposition, 2009Supercapacitors, also known as ultracapacitors, are commonly based on porous activated carbon electrodes and electrostatic charge storage mechanisms. Carbon electrodes are supposed to be chemically and electrochemically inert and the electrostatic nature of the charge storage mechanism is highly reversible.
EL Hassane El Brouji +5 more
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Microelectronics Reliability, 1995
Abstract The purpose of this paper is to present a method of statistical analysis of Accelerated Life Test (ALT) data which allows to drop assumptions usually made on the type of life distribution function at each stress level and the life-stress relationship.
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Abstract The purpose of this paper is to present a method of statistical analysis of Accelerated Life Test (ALT) data which allows to drop assumptions usually made on the type of life distribution function at each stress level and the life-stress relationship.
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Leakage current effects on N-MOSFETs after thermal ageing in pulsed life tests
Microelectronics Journal, 2014This paper presents a synthesis of leakage current effects on N-MOSFET performances, after thermal ageing in pulsed life tests. A 3000h pulsed RF life test has been conducted on a dedicated RF S-band bench in operating modes. It is interesting to understand the degradation mechanism effects caused by the increase leakage current and in turn on drifts ...
Mohamed Ali Belaïd +4 more
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1985
The prediction of the service life of a building product is needed for making life cycle cost decisions, for determining the risks and liabilities in marketing a product, and for helping to identify the causes of a product’s failure. Accurate estimates of the service life for building products, however, have traditionally been difficult to obtain.
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The prediction of the service life of a building product is needed for making life cycle cost decisions, for determining the risks and liabilities in marketing a product, and for helping to identify the causes of a product’s failure. Accurate estimates of the service life for building products, however, have traditionally been difficult to obtain.
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Moving from lab testing of Active & Healthy Ageing technologies to real-life implementation
Proceedings of the 9th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2016This paper exhibits two different cases of pilot contexts, that embrace the main principles of the Living Lab approach, which is the user-driven testing and development of technology in real-life environments. In the first case, a pilot phase was conducted in an ehome-like space within the premises of the Lab of Medical Physics Laboratory, based on a ...
Unknown, +5 more
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