OBJECTIVE To examine the intra-rater, inter-rater, and inter-instrumental reliability of the digitalized pinch muscle strength dynamometer. METHOD Thirty normal subjects were examined for pinch strength, using both the Preston pinch gauge and the digitalized pinch dynamometer. The participants performed all pinch strength tests in the seated position as recommended by the American Society of ...

Background: Measuring instruments should have their scientific and clinical value evaluated in different populations. The handgrip strength test is widely used, however little has been investigated about its reliability when used in elderly with dementia and the right stage wich its use should be avoided. Objectives: To evaluate the test-retest reliability of the handgrip strength test in elder...

In this study, the stress-strength reliability, R = P(Y < X) where Y represents stress of a component and X component’s strength, is obtained when have two independents generalized Gompertz distribution with different shape parameters under progressive type-II censoring. The Bayes maximum likelihood estimators reliability can not be acquired in closed forms. approximate squared error los...

The reliability of welded structure can be evaluated through welding residual stress analysis and fatigue strength assessment. In this study, welding residual stresses of multi-pass dissimilar material welded joint between alloy 617 and 12Cr steel were analyzed numerically and experimentally. Fatigue strength was then assessed in the air. Based on results of welding residual stress analysis and...

Abstract: In this paper we consider various Marshall-Olkin distributions and develop autoregressive minification processes with stationary marginals as exponential, Weibull, uniform, Pareto, Gumbel, Lomax etc. The applications in reliability modelling and stress-strength analysis are considered.Problems of estimation of parameters is addressed. Various properties are examined. Modelling with re...

In this paper, a Bayesian analysis is made to estimate the Reliability of two stress-strength model systems. First: reliability one component strengths X under stress Y. Second, strength three stresses. Where and Y are independent generalized exponential-Poison random variables with parameters (α,λ,θ) (β,λ,θ) . The concerned based on doubly type II censored samples using gamma prior four differ...

The stress – strength model is one of the models that are used to compute reliability. In this paper, we derived mathematical formulas for reliability follows Rayleigh Pareto (Rayl. Par) distribution. Here, has a single component, where Y subjected X, represented by moment, function, restricted behavior, and ordering statistics. Some estimation methods were used, which maximum likelihood, ordin...