نتایج جستجو برای: stiffness deterioration

تعداد نتایج: 75555  

Journal: :Journal of Advanced Mechanical Design Systems and Manufacturing 2023

The infrastructure built in the 1950s has deteriorated beyond its service life. However, replacing all is very difficult and involves huge replacement costs. To address this problem, optimization of maintenance operations participation various stakeholders required; however, technology social cognition terms deterioration remains insufficient. In study, we perform research development simultane...

Journal: :Clinical Biomechanics 2021

BackgroundUsing fewer distal screws in volar plate fixation of radius fractures could reduce treatment costs and complications. However, there is currently no consensus on the ideal screw configuration, likely due to experimental limitations its subject-specific nature. In this study, finite element analysis was used investigate (1) if reducing number biomechanically feasible (2) an optimal con...

2007
Iain R. Lake Gordon Nichols Graham Bentham Florence C.D. Harrison Paul R. Hunter R. Sari Kovats

Since new drinking water regulations were implemented in England and Wales in 2000, cryptosporidiosis has been significantly reduced in the first half of the year but not in the second. We estimate an annual reduction in disease of 905 reported cases and approximately 6,700 total cases.

Journal: :Journal of personality and social psychology 2009
Brian D Doss Galena K Rhoades Scott M Stanley Howard J Markman

This longitudinal study examined the effect of the birth of the 1st child on relationship functioning using data from 218 couples (436 individuals) over the course of the first 8 years of marriage. Compared with prebirth levels and trajectories, parents showed sudden deterioration following birth on observed and self-reported measures of positive and negative aspects of relationship functioning...

Journal: :Genetics 2012
Alison M Wardlaw Aneil F Agrawal

Asexual species accumulate deleterious mutations through an irreversible process known as Muller's ratchet. Attempts to quantify the rate of the ratchet have ignored the role of temporal environmental heterogeneity even though it is common in nature and has the potential to affect overall ratchet rate. Here we examine Muller's ratchet in the context of conditional neutrality (i.e., mutations th...

Journal: :Journal of clinical psychology 1984
D A Leli S B Filskov

Leli and Filskov (1979) reported cross-validated classification accuracy that equalled 83% for a discriminant function derived on two measures of intellectual deterioration. This investigation made a preliminary assessment of the clinical utility of this function through a clinical-actuarial classification paradigm. Wechsler-Bellevue Intelligence Scale Form I protocols from 12 nonpsychotic noni...

Journal: :BMC Women's Health 2004
Jennifer Payne

HEALTH ISSUE: Total fertility rates (TFRs) have decreased worldwide. The Canadian fertility rate has gone from 3.90 per woman in 1960 to 1.49 in 2000. However, not many studies have examined the impact on women's health of reduced fertility rates, delayed fertility and more births to unmarried women. This paper presents information on the relation between family size and specific determinants o...

Journal: :Experimental gerontology 2006
Popi Syntichaki Nektarios Tavernarakis

Ageing in many organisms, including humans, is accompanied by marked alterations in both general and specific protein synthesis. Protein synthesis is normally under tight control by a broad array of regulatory factors, which facilitate appropriate rates of mRNA translation. Are the wide changes in protein synthesis simply a corollary of the ageing process or do they have a causative role in sen...

Journal: :international journal of supply and operations management 2014
rakesh prakash tripathi

this paper presents an inventory model for deteriorating items in which shortages are allowed. it is assumed that the production rate is proportional to the demand rate and greater than demand rate. the inventory model is developed by considering four different circumstances. the optimal of the problem is obtained with the help of mathematica 7 software. numerical examples are given to illustra...

Journal: :Facta Universitatis 2021

Strengthening of concrete structures is applied as a solution for various deterioration problems in civil engineering practice. This paper presents an analytical study the behaviour cross-section reinforced (RC) beam, strengthened flexure with fiber polymer (FRP) materials. Using balance internal forces cross section through all phases stress which passes, program was written MATLsoftware, exec...

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