Estimating the confidence interval of Weibull modulus is an important problem in fracture strength modeling ceramic and composite materials. It particularly cases where sample size small due to high experimental costs. For this purpose, several classical methods, including popular maximum likelihood method, Bayesian methods have been developed literature. However, studies on inference remained ...

Background: Determining the mortality rate of diseases in a community is one of the main components in health care planning of that community. This study used a join point regression model to determine the trend of mortality due to diabetes mellitus (DM) in Iran. Materials and Methods: The data on the rate of mortality due to DM were obtained from the reports of the Iranian Ministry of Healt...

The general properties of two commonly-used methods of interval estimation for population parameters in physics are examined. Both of these methods employ the likelihood function: (i) Obtaining an interval by finding the points where the likelihood decreases from its maximum by some specified ratio; (ii) Obtaining an interval by finding points corresponding to some specified fraction of the tot...

this paper presents a probabilistic confidence-interval based method for optimal placement of shunt capacitors in distribution networks by considering probabilistic characteristics of loads. the main objective function are reducing loss and improving the voltage profile. backward forward sweep method has been employed to obtain the power flow results in distribution system. in addition, integer...

helicobacter pylori infection is a common health problem related to many gastrointestinal disorders. this study aims to estimate the total and age specific prevalence of helicobacter pylori infection in iran. we systematically reviewed all national and international databases and finally identified 21 studies were eligible for meta-analysis. each of them were assigned a quality score using stro...