This paper presents a new task model where jobs are divided into segments A, B and C. Segment B has a specific time-interval where it should execute to fulfill some application constraints. We consider the execution of B as valid if performed inside that time-interval, otherwise, its contribution may be valueless to its task. We adapt some scheduling approaches from the literature and present a...

The Duration Calculus is an interval logic with an additional notion of duration. It became one of the main references of real-time system specification for which it was introduced. From a practical point of view an important challenge is to define automated proof procedures for this calculus. Since the propositional Duration Calculus is undecidable, in this paper we isolate a fragment and we d...

one-way analysis of covariance is a popular and common statisticalmethod, wherein the equality of the means of several random variables whichhave a linear relationship with a random mathematical variable, is tested. inthis study, a method is presented to improve the one-way analysis of covari-ance when there is an uncertainty in accepting the statistical hypotheses. themethod deals with a fuzzy...

In this paper, we study the problem of power efficient tracking interval management for distributed target tracking wireless sensor networks (WSNs). We first analyze the performance of a distributed target tracking network with one moving object, using a quantitative mathematical analysis. We show that previously proposed algorithms are efficient only for constant average velocity objects howev...

ramadan fasting is one of the most important religious duties of muslims, that its effect on the heart has not been determined yet. our objective was to evaluate the effect of ramadan fasting on ventricular repolarization as assessed by qt interval, corrected qt interval, qt dispersion or corrected qt dispersion. sixthy healthy subjects aged 20 to 35 years were dispersion included in this study...

RATIONALE Bronchiolitis during infancy is associated with an increased risk of childhood asthma. Whether winter viral infections cause asthma or are a manifestation of a predisposition to asthma development is unknown. OBJECTIVES To study the relationship of winter virus infection during infancy and the development of childhood asthma. METHODS We studied over 95,000 infants born between 199...

The Tibetan Plateau (TP), which is well known as “The Third Pole”, is of great importance to climate change in East Asia, and even the whole world. In this paper, we selected the monthly temperature (including the monthly mean and the maximum and minimum temperature) during 1971–2015 from 88 meteorological stations on the TP. The data were tested and corrected by using Penalized Maximal F Test ...

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