نتایج جستجو برای: wbgt index
تعداد نتایج: 396212 فیلتر نتایج به سال:
Introduction: Workers in open pit mines are frequently exposed to extreme heat stress during hot seasons. Several indices including Modified Discomfort Index (MDI) are used to evaluate the heat stress. The aim of this study was to evaluate the MDI and to investigate its relationship with ISO 7243 standard (Wet Bulb Globe Temperature index, WBGT) and physiological parameters of workers in an ope...
Background & Objectives: Many studies were conducted to determine the effects of heat stress on human performance. However, they could not reach a decisive conclusion, mainly due to a large variation in experimental conditions and tests. This study investigated cognitive performance of university students exposed to different levels of heat stress under laboratory condition. Methods: I...
Heat illness in the Armed Forces is an emotive issue. No specific service-wide system currently exists to monitor the incidence of heat illness. Within British Forces Cyprus medical policy guidelines for physical activity at various Wet Bulb Globe Temperature (WBGT) readings were issued in 1988. A local system for reporting heat casualties was introduced in August 1989. This paper examined retr...
Introduction: Heat stress is considered as physical hazard, in working environments. The effects of working in hot environment include: muscle cramp, fatigue, loss of consciousness, perception and heat exhaustion.The purpose of this study was to evaluate heat stress and identify hazardous workstations in terms of heat stress in one of the Teheran's forging industries, using WBGT index. . Meth...
most of iranian oil terminals are located in tropical regions and consequently, disorders of heat stress among workers are expected. there are many heat stress indices with self-advantages and disadvantages which are used for evaluating the amount of heat stress. the aim of the present study was to evaluate the reliability of wbgt, et and cet indices by comparison to core body temperature in kh...
The effect of humid heat acclimation on thermoregulatory responses to humid and dry exercise-heat stress was studied in six exercise-trained Thoroughbred horses. Horses were heat acclimated by performing moderate-intensity exercise for 21 days in heat and humidity (HH) [34.2-35.7 degrees C; 84-86% relative humidity (RH); wet bulb globe temperature (WBGT) index approximately 32 degrees C]. Horse...
Extreme climatic heat is a major health concern among workers in different occupational pursuits. People in the regions of western India confront frequent heat emergencies, with great risk of mortality and morbidity. Taking account of informal occupational groups (foundry and sheet metal, FSM, N=587; ceramic and pottery, CP, N=426; stone quarry, SQ, N=934) in different seasons, the study examin...
This study aimed to investigate the thermal responses of acclimated workers exposed heat stress in a real work environment. The physiological indices and subjective perception 14 were measured an industrial plant. effects wet bulb globe temperature (WBGT) on studied. differences between unacclimated college students compared analyzed. relationship mean skin sensation was revealed. results show ...
background: pastry occupation is one of occupations to exposure with heat and significant number of workers works at it. this study is aimed to heat stress and heat strain score index assessment in the pastry workers of isfahan. methods: this cross sectional and descriptive study was conducted on 360 pastry workers between 10 and 14 hours in the summer of 2012. wbgt index was used for determi...
background : in many jobs, individuals are exposed to thermal stress, and thus, evaluation of heat stress is necessary. this study was conducted with the purpose of investigating the relationship of perceptual strain index (pesi) with other heat indexes under hot laboratory conditions. methods: this empirical-experimental and cross-sectional study was performed in 5 different temperatures (21 º...
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