نتایج جستجو برای: dew point and wet bulb temperature performed at mehrabad synoptic station moreover

تعداد نتایج: 17263738  

Journal: :Occupational medicine 2000
A M Donoghue G P Bates

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...

F GOLBABAI, M MAHMOODI, M JAAFARI, P NASSIRI,

This paper presents a case study to determine the efficiency of the currently used heat stress indices in correlation with wet bulb globe temperature (WBGT) as a permissible index at a foundry plant and to evaluate the extent of the physiological responses such as heart rate and body temperature in correlation with heat stress indices. The field consisted of a foundry plant where a shift w...

Journal: :The Annals of occupational hygiene 2012
Francesca Romana D'Ambrosio Alfano Boris Igor Palella Giuseppe Riccio

This paper deals with the indirect evaluation of the natural wet bulb temperature, t (nw), one of the two quantities forming the basis of the well-known wet bulb globe temperature (WBGT) index, considered worldwide to be a suitable and user-friendly tool for the preliminary assessment of hot thermal environments. This quantity can be measured by a wet bulb thermometer (a temperature sensor cove...

Journal: :Industrial health 2013
Tord Kjellstrom Bruno Lemke Matthias Otto

A feature of climate impacts on occupational health and safety are physiological limits to carrying out physical work at high heat exposure. Heat stress reduces a workers work capacity, leading to lower hourly labour productivity and economic output. We used existing weather station data and climate modeling grid cell data to describe heat conditions (calculated as Wet Bulb Globe Temperature, W...

Journal: :Earth System Science Data 2022

Abstract. The wet-bulb temperature (WBT; TW) comprehensively characterizes the and humidity of thermal environment is a relevant variable to describe energy regulation human body. daily maximum TW can be effectively used in monitoring humid heat waves their effects on health. Because meteorological stations differ temporal resolution are susceptible non-climatic influences, it difficult provide...

Journal: :journal of agricultural science and technology 2011
a. khashei-siuki m. kouchkzadeh b. ghahraman

khorasan province is one of the most important provinces of iran, especially as regards agricultural products. the prediction of crop yield with available data has important effects on socio-economic and political decisions at the regional scale. this study shows the ability of artificial neural network (ann) technology and adaptive neuro-fuzzy inference systems (anfis) for the prediction o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 0

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

2003
E. R. Williams V. C. Mushtak D. J. Boccippio

Satellite observations of lightning flash rate are merged with proximal surface station thermodynamic observations toward understanding the response of the global circuit to temperature. These comparisons support an important role for cloud base height in regulating the transfer of Convective Available Potential Energy (CAPE) to updraft kinetic energy in thunderstorms. This role for cloud base ...

Journal: :medical journal of islamic republic of iran 0
p nassiri from the department of occupational health, school of public health, tehran university of medical sciences, tehran, islamic republic of iran. m jaafari f golbabai m mahmoodi

this paper presents a case study to determine the efficiency of the currently used heat stress indices in correlation with wet bulb globe temperature (wbgt) as a permissible index at a foundry plant and to evaluate the extent of the physiological responses such as heart rate and body temperature in correlation with heat stress indices. the field consisted of a foundry plant where a shift work w...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید