نتایج جستجو برای: ageing distributions
تعداد نتایج: 158226 فیلتر نتایج به سال:
introduction: elder abuse may increase the vulnerability of ageing people to disease and decrease their general health status, so addressing the issue is essential for promoting elderly quality of life. the study aimed to examine the relation between abuse experience and general health among elderly people in yazd city- iran. methods: the cross-sectional study carried out on 250 community-dwell...
We present a model for growing information networks where the ageing of a node depends on the time at which it entered the network and on the last time it was cited. The model is shown to undergo a transition from a small-world to large-world network. The degree distribution may exhibit very different shapes depending on the model parameters, e.g. delta-peaked, exponential or power-law tailed d...
A new discrete class of life distributions is studied. This class is defined based on comparing the residual life time to the whole life in the probability generating function order giving “the discrete new better than used in the probability generating function order ageing class (d−NBUpg)”. Fundamental properties of this class are given including some closure properties and characterizations....
To develop a general reliability theory taking into account various sources of information and a lack of satisfactory data on which estimates of system parameters can be based, the theory of imprecise probabilities can be used. The purpose of the paper is to study structural reliability based on the imprecise probability models taking into account the ageing aspect of the lifetime distributions...
Objectives “Ageing” has created challenges for societies, particularly in developing countries. In this regard, the “Research Agenda on Ageing for the 21st century” (RAA-21) has been prepared and published through a joint project of the “United Nations Program on Ageing” and the “International Association of Gerontology and Geriatrics.” The Univer...
This experiment was laid out in order to study on effect of natural storage and accelerated ageing on quantity and quality changes in storage proteins and catalase enzyme in chickpea seeds (Cicer arietinum L.) in Gorgan University of Agricultural Science and Natural Resource seed laboratory at 2015. Experiment was in complementary randomized design arrangement with four repli...
the glass transition temperature (tg) and the melting temperature (tm) of gelatin at water contents between 7 and 14% were measured using differential scanning calorimetry. the plasticisation of the polymer by water led to a decrease in tg and tm. the tg of partially crystalline gelatin was higher than that of the amorphous one obtained by quenching from the melt. the enthalpy relaxation occur...
Inferring growth for aquatic species is dependent upon accurate descriptions of age-length relationships, which may be degraded by measurement error in observed ages. Ageing error arises from biased and/or imprecise age determinations as a consequence of misinterpretation by readers or inability of ageing structures to accurately reflect true age. A Bayesian errors-in-variables (EIV) approach (...
increasing of the aging population in most of the developed countries should be more attention to the health issues of this aged group. in iran, the ageing program has been launched and some institutes or organizations have been in charge of this program. the coordination of health policies and activities in elderly care programs and ageing networks could be helped to improve of elderly life sp...
in the present work, the influence of aging temperature on mechanical properties and sound velocity of maraging steel m350 was investigated. for this purpose, first, samples were solution annealed at 825◦c for 2 hours and then age hardened at 510◦c-600◦c for 3 hours. hardness, tensile and impact tests were used for determining mechanical properties and longitudinal ultrasonic velocity was used ...
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