نتایج جستجو برای: bulb globe temperature wbgt
تعداد نتایج: 494133 فیلتر نتایج به سال:
original article introduction: direct sunlight and increased heat load influence mental and physical health of workers negatively and result in performance impairment. activity reduction is a natural body response to increase in internal body temperature, and a compensatory mechanism to make body balanced. this study was carried out to estimate productivity loss due to heat exposure among ira...
BACKGROUND AND AIM Heat stress (HS) is associated with adverse health outcomes among agricultural workers, including acute kidney injury (AKI). The aim on this study was to estimate the incidence of AKI over course work shift and association HS workers in Spain, where summer temperatures are high heat waves expected be more frequent. METHODS Male were enrolled two different periods provinces: h...
Global warming causes a temperature rise and alteration of other meteorological variables that directly or indirectly affect human comfort. The wet bulb globe (WBGT) incorporates the effects multiple to provide reliable measure thermal stress. Despite large significance WBGT on public health, studies related characterization trends assessment are limited in tropical humid region like Peninsular...
Background and purpose: Heat is a common type of energy that is produced during industrial processes in many work places. Workers who are working in hot areas may be exposed to heat stress. The aim of this study is to evaluate the effect of a designed cool spot on reduction of Mean Radiation Temperature (MRT) and Wet Bulb Glob Temperature index (WBGT) on a group of furnace workers. Materia...
The risk of heat exhaustion at a deep underground metalliferous mine was assessed in relation to thermal conditions prevailing on the surface. For each day of a 1-year prospective case series of heat exhaustion, surface 24-h mean wet and dry bulb temperatures were recorded. From this data, 24-h mean wet bulb globe temperatures were derived using certain assumptions. The three surface temperatur...
This study assesses the impacts of urban configurations on thermal perceptions in Flat Bandar Tasik Selatan (FBTS) and Surya Magna (SM) Kuala Lumpur, Malaysia. It aims to understand outdoor spaces. The addresses following research questions: (1) Do influence comfort? (2) also have significant perceptions? We mapped out sites their configurations. considered on-site measurements environmental co...
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...
heat stress is a common occupational health hazard at outdoor workplaces especially in a hot-humid climate. overheating of the body can cause a number of problems, including heat rash, heat cramps, dizziness, heat exhaustion, and heat stroke. the present study aimed to assess heat stress indices including di, wbgt, and sw req /phs, as a mean to estimate the heat load on the employees of a petro...
Uncontrolled solar radiation and the related effects on occupant productivity can lead to considerable indoor thermal discomfort in office environments. In this paper, Radiance Daylight Coefficient (DC) method is used assess incoming consequent through delta mean radiant temperature (ΔMRT). The ΔMRT allows expressing an adjusted predicted vote (Adjusted PMV). Under conditions of direct radiatio...
The use of boiler wood-fired is fairly common equipment utilized in steam generation for energy production in small industries. The boiler activities are considered dangerous and heavy, mainly due to risks of explosions and the lack of mechanization of the process. This study assessed the burden of physical labor that operators of boilers are subjected during the workday. Assessment of these co...
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