نتایج جستجو برای: شاخص wbgt
تعداد نتایج: 74766 فیلتر نتایج به سال:
More than 40 heat indices are being used across the world to quantify outdoor thermal comfort. The selection of an Outdoor Heat Stress Index (OHSI) depends on several parameters, including clothing, age, awareness, local environment, food consumption, human activities, and resources. This study investigates various indicators stress, (i) OHSIs officially stress worldwide, (ii) estimation method...
Introduction: Determining methods for assessing heat stress in different work environments is one of the major challenges for researchers in this field. The purpose of this study was to validate WBGT index and heat pressure assessment (HPA) by some physiological responses in Iranian South Oil Company. Material and Methods: This descriptive-analytical study was carried out on 154 employees of K...
Background and Aims: Hot and humid conditions are common in many parts of the world these conditions can influence both the health and performance of individuals. Therefore to describe the environmental conditions appropriately, the amount of reliability of heat stress indices should be measured. The aim of this study was evaluating the reliability of WBGT and P4SR by comparison to core body ...
the purpose of this study was to determine the level of heat stress to construction workers using thermal work limit (twl) and wet bulb globe temperature (wbgt) indices and by measuring urine specific gravity (usg) among construction workers in iran and comparing the appropriateness of these indices for measuring heat stress in iran climate.this comparative and experimental study was conducted ...
Introduction: This study was designed with the main purpose of examining the compatibility of the two indicators of wet bulb globe temperature (WBGT) and predicted thermal strain (PHS) in assessing the environmental conditions and the heat load imposed on the subjects. Method: In this cross-sectional study, 163 bakers were included in the study. Thermal stress was determined using the WBGT and...
Introduction: Heat stress is a critical problem in hot industries, especially in incredibly hot climates. It can greatly impair the work process and put the health of workers at risk. This study aims to investigate the applicability of the WBGT index in determining the allowable working time in very hot weather conditions in one of the steel industries in Ahvaz. Material and Methods: This stud...
the aim of this study was to determine heat stress effect on physical capacity of semi-professional footballers in iran by means of oxygen consumption measurement, heart rate monitoring and wbgt assessment environmental conditions.this study compared two different thermal environmental conditions related to sub-maximal exercise and its effect on human physical capacity. thirty two male football...
abstract introduction: heat stress risk assessment, as a harmful agent at workplace, is essential for controlling heat strain and heat stress effectively. this study is concerned with the relationship between physiological strain index (psi) and wet bulb globe temperature index (wbgt) in women in the climate chamber . methods: this experimental study was carried out on 36 healthy females in sit...
original article introduction: exposure to heat is one of the workplace risk factors, which may lead to thermal strain, such as rising heart rate and body temperature. to have the best association between a heat stress indices and physiological parameters have always been a major concern for those studying the subject. this study aims to compare the association of two heat stress indices with...
This paper aims to assess the effects of urbanization on heat stress comparing two neighbourhoods in tropical city Rio de Janeiro, Brazil, that differ terms building density and vegetation cover. The outdoor was evaluated by Wet Bulb-Globe Temperature (WBGT) Index, which considers combined effect air temperature, relative humidity, solar radiation wind speed, during year 2016. urban neighbourho...
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