نتایج جستجو برای: risks of accidents such as fire accident
تعداد نتایج: 21480405 فیلتر نتایج به سال:
in this thesis, first the notion of weak mutual associativity (w.m.a.) and the necessary and sufficient condition for a $(l,gamma)$-associated hypersemigroup $(h, ast)$ derived from some family of $lesssim$-preordered semigroups to be a hypergroup, are given. second, by proving the fact that the concrete categories, semihypergroups and hypergroups have not free objects we will introduce t...
background : drivers are vulnerable to musculoskeletal and psychological disorders because of substantially harmful agents in this stressful occupation. this study aims to investigate the influence of driver’s physical and psychological health on the risk of road accidents using fuzzy logic approach. methods : two input variables including musculoskeletal disorders (msds) and mental health, alo...
there are many approaches for solving variety combinatorial optimization problems (np-compelete) that devided to exact solutions and approximate solutions. exact methods can only be used for very small size instances due to their expontional search space. for real-world problems, we have to employ approximate methods such as evolutionary algorithms (eas) that find a near-optimal solution in a r...
Fire accidents occur in every part of the world and cause a large number casualties because risks involved manually extinguishing fire. In most cases, humans cannot detect extinguish fire manually. robots with sophisticated functionalities are being rapidly developed nowadays, these systems use sensors detectors. However, they lack mechanisms for early detection fire, case casualties. To preven...
for a given riemannian manifold (m,g),it is an interesting question to study the existence of a conformal diffemorphism (also called as a conformal transformation) f : m ! m such that the metric g? = fg has one of the following properties: (i)(m; g?) has constant scalar curvature. (ii)(m; g?) is an einstein manifold.
objective: to determine the epidemiological and clinical characteristics of hand and finger amputations in patients referring to a single center in northern iran. methods: this was a cross-sectional study conducted on 200 traumatic hand amputees hospitalized in shohada hospital in tabriz, northwestern iran during a 1-year period in 2014. data were collected through prospective interviews for v...
In a survey of 72 motor-cyclists, their experience of motor-cycle accidents and their perception of future risk were assessed. The results show that they underestimate the chance of having an accident and that their perception of the risks increases following personal contact with the victims of such accidents.
This study develops a Zero-Inflated Negative Binomial (ZINB) regression model to evaluate the factors influencing the loss of human life in shipping accidents using ten years’ ship accident data in the South China Sea. The ZINB regression model results show that the expected loss of human life is higher for collision, fire/explosion, contact, grounding, hull damage, machinery damage/failure and...
Risk assessment for construction safety is critical for effective project control. Traditional risk assessment approaches mostly rely on expert opinion because of limited accident data. Therefore, assessment results may lack precision because of experts‟ subjectivity and limited cognition when multiple safety risks are assessed simultaneously. This study developed a new assessment approach base...
even though, to date, a lot of studies have been conducted on the subject of politeness theory, there are very few studies regarding the applicability of this theory to translation between english and persian which shows the reason behind conducting the present study. this study was carried out with the aim of highlighting whether there is any difference between english and persian methods of u...
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