نتایج جستجو برای: proportional deterioration rate
تعداد نتایج: 1041989 فیلتر نتایج به سال:
This article argues that a significant shift is taking place in the sociological study of religion, and seeks to outline its main features. In order to do so it returns to Stephen Warner’s classic article of 1993 which drew a contrast between ‘old’ and ‘new’ paradigms in the sociology of religion. It develops Warner’s analysis by setting these paradigms in their European and American contexts r...
The Chilean government commissioned a quasi-experimental study with a pre-/postintervention design that had two general aims: (a) to assess infants' psychoaffective developmental levels (pre-intervention phase) and (b) to evaluate whether an intervention based on the promotion of socioemotional development modifies the infant's psychoaffective development. Sixty-two institutionalized infants an...
Pollinator decline has been linked to landscape change, through both habitat fragmentation and the loss of habitat suitable for the pollinators to live within. One method for exploring why landscape change should affect pollinator populations is to combine individual-level behavioural ecological techniques with larger-scale landscape ecology. A modelling framework is described that uses spatial...
A single-item economic production model is developed in which inventory is depleted not only due to demand but also by deterioration. The rate of deterioration is taken to be time dependent, and the time to deterioration is assumed to follow a two-parameter Weibull distribution. The Weibull distribution, which is capable of representing constant, increasing, and decreasing rates of deterioratio...
Looking through the inventory models with deteriorating items shows that the deterioration rate is considered constant in most of the previous researches. But,in the real world, deterioration rate is not actually constant and slightly disturbed from its original crisp value. In this paper a more realistic inventory model with fuzzy deterioration and fully backlogged shortage under inflation is ...
The paper presents a stochastic gamma process model to account for both sampling and temporal variability associated with a deterioration process that increases risk of failure of an aging structure. The proposed method is more versatile than the random-variable deterioration rate model commonly used in the structural reliability literature. The reason being that the random rate model cannot ca...
Although vocabulary tests are generally considered interchangeable, regardless of format, different tests can have different relations to age and to other cognitive abilities. In this study, 4 vocabulary test formats were examined: multiple-choice synonyms, multiple-choice antonyms, produce the definition, and picture identification. Results indicated that, although they form a single coherent ...
The number of adults aged 65 years and older is increasing rapidly, creating public health challenges. We used data from the 1995 and 2005 national surveys of Midlife in the United States (MIDUS) to compare changes in mental well-being of participants (n = 1007) of 3 age cohorts (ages 45-54 years, 55-64 years, and 65-74 years in 1995). Older adults experienced a slight decline in mental well-be...
Purpose: The purpose of this paper to develop an inventory model for instantaneous deteriorating items with the consideration of the facts that the deterioration rate can be controlled by using the preservation technology (PT) and the holding cost & demand rate both are linear function of time which was treated as constant in most of the deteriorating inventory model. Design/methodology/approac...
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