Results 211 to 220 of about 1,462,566 (267)
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Optimality in Accelerated Life Tests
Mathematics of Operations Research, 1992We formulate a stochastic control problem arising from the optimal design of accelerated life tests. The model is obtained, in a natural way, in the setup of point processes. The cost functional depends on the total number of items under test at time t, the observed number of items failed up to time t, and the stress level applied to the items under ...
G. Del Grosso +2 more
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Annals of the Rheumatic Diseases, 2020
The recent article by Pisetsky et al 1 showing data derived from a comparison of different antinuclear antibody (ANA) assays in a cohort of patients with established systemic lupus erythematosus highlighted the critical issue of ANA detection. With great interest, we read the correspondence by van Hoovels et al 2 describing variation in ANA detection ...
Maria, Infantino +5 more
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The recent article by Pisetsky et al 1 showing data derived from a comparison of different antinuclear antibody (ANA) assays in a cohort of patients with established systemic lupus erythematosus highlighted the critical issue of ANA detection. With great interest, we read the correspondence by van Hoovels et al 2 describing variation in ANA detection ...
Maria, Infantino +5 more
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Journal of Personality Assessment, 2006
This autobiographical essay describes my career as a psychodiagnostician, which began at the City College of New York in 1941 and ended in the late 1970s when I became a full-time psychoanalyst in Manhattan. As a green, 20-year-old psychology undergraduate, I was picked by Gardner Murphy to assist David Rapaport at the Menninger Clinic in Topeka ...
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This autobiographical essay describes my career as a psychodiagnostician, which began at the City College of New York in 1941 and ended in the late 1970s when I became a full-time psychoanalyst in Manhattan. As a green, 20-year-old psychology undergraduate, I was picked by Gardner Murphy to assist David Rapaport at the Menninger Clinic in Topeka ...
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The Life Engagement Test: Assessing Purpose in Life
Journal of Behavioral Medicine, 2006This article describes a 6-item scale, the Life Engagement Test, designed to measure purpose in life, defined in terms of the extent to which a person engages in activities that are personally valued. Psychometric data are presented including information about the scale's factor structure, internal consistency, test-retest reliability, convergent ...
Michael F, Scheier +7 more
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Life Testing and Reliability Estimation
Technometrics, 1981(1981). Life Testing and Reliability Estimation. Technometrics: Vol. 23, No. 3, pp. 310-311.
Albert H. Moore, S. K. Sinha, B. K. Kale
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Transformation of Life-Test Data
Canadian Mathematical Bulletin, 1968In a recent paper Box and Cox (1964) considered the problem of transforming dependent variables in regression and analysis of variance problems, in order to achieve the usual assumptions of Normality, constant variance and additivity of effects.
Draper, Norman R., Guttman, Irwin
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Nonparametric Accelerated Life Testing
IEEE Transactions on Reliability, 1982This paper considers the problem of nonparametric accelerated life testing by extending the results of Shaked & Singpurwalla in two directions. First we solve the case of censored data. Next we extend the methods to the case of competing risks. A s-consistent estimate of the failure distribution at use-stress is given for both cases.
Basu, A. P., Ebrahimi, Nader
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Journal of Petroleum Technology, 2008
Management Well testing provides answers you cannot get any other way. Whether testing is performed during exploration and appraisal, development, or production, it provides the greatest levels of security to support decisions—decisions that can affect the reservoir for its active life.
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Management Well testing provides answers you cannot get any other way. Whether testing is performed during exploration and appraisal, development, or production, it provides the greatest levels of security to support decisions—decisions that can affect the reservoir for its active life.
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Applied Optics, 1977
We have investigated the manner in which the gain of a microchannel plate (MCP) changes as the plate is operated at moderate output currents. We find that the total charge per unit area Q (C-cm(-2)) extracted from the MCP is the relevant quantity for evaluating the performance of the MCP.
B R, Sandel +2 more
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We have investigated the manner in which the gain of a microchannel plate (MCP) changes as the plate is operated at moderate output currents. We find that the total charge per unit area Q (C-cm(-2)) extracted from the MCP is the relevant quantity for evaluating the performance of the MCP.
B R, Sandel +2 more
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Development of Accelerated Life Test
2008 IEEE Conference on Robotics, Automation and Mechatronics, 2008This paper summarizes the development of accelerated life test types, model, statistical method and its progress. To the mechatronic component whose failure mechanism is related to various operational stresses, the best way is to exploit variable stress accelerated life test (ALT), obtain the likelihood function with failure accumulative method, and ...
Sijun Zhao +3 more
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