نتایج جستجو برای: heat strain

تعداد نتایج: 416049  

Fatemeh Mohammadi, Hojjat Sadeghi-Aliabadi Hossain Fazeli Maryam Mirlohi

Objective(s): Several beneficial effects have been attributed to the probiotic lactic acid bacteria. It was determined that lactobacilli can exert antiproliferative effects on the various cancer cell lines including colon cancer. Effects of lactic acid bacteria on colon cancer may vary from strain to strain and there is a need to find the new probiotic strains with tumor suppressing properties ...

This research presents temperature distribution and thermal strain of functionally graded material cylinders with varying thickness and temperature-dependency properties that are subjected to heat fluxes in their inner and outer layers. The heterogeneous distribution of properties is modeled as a power function. Using first-order temperature theory and the energy method, governing equations are...

Journal: :health scope 0
peymaneh habibi department of occupational health engineering, student research center, school of health, isfahan university of medical sciences, isfahan, ir iran habibollah dehghan department of occupational health engineering, student research center, school of health, isfahan university of medical sciences, isfahan, ir iran; department of occupational health engineering, school of health, isfahan university of medical sciences, isfahan, ir iran. tel: +98-3117922733, fax: +98-3116682509 azam haghi department of occupational health engineering, student research center, school of health, isfahan university of medical sciences, isfahan, ir iran mahnaz shakerian department of occupational health engineering, student research center, school of health, isfahan university of medical sciences, isfahan, ir iran

results the results showed that the average hr at resting, sitting (32℃ ± 0.1℃), and light workload (30℃ ± 0.1℃) were 78.52 ± 12.10, 69.74 ± 11.98, and 110.78 ± 17.91 beat/min, respectively. the average of ear canal temperature was estimated at 36.70℃ ± 0.36℃ for sitting workload and at 36.71℃ ± 0.27℃ light workload. conclusions the findings of this study illustrated that the average hr and the...

Journal: :iranian journal of basic medical sciences 0
hojjat sadeghi-aliabadi department of biotechnology, faculty of pharmacy, isfahan university of medical sciences, isfahan, iran fatemeh mohammadi department of biotechnology, faculty of pharmacy, isfahan university of medical sciences, isfahan, iran hossain fazeli department of microbiology, medical school, isfahan university of medical sciences, isfahan, iran maryam mirlohi food security research center, school of nutrition and food science, isfahan university of medical sciences, isfahan, iran

objective(s): several beneficial effects have been attributed to the probiotic lactic acid bacteria. it was determined that lactobacilli can exert antiproliferative effects on the various cancer cell lines including colon cancer. effects of lactic acid bacteria on colon cancer may vary from strain to strain and there is a need to find the new probiotic strains with tumor suppressing properties ...

بابایی مسدرقی, یوسف, جلالی, مهدی, علی آبادی, محسن, فرهادیان, مریم, ملاکاظمی ها, مهدی, نگهبان, سید امیررضا, کلانتری, بهزاد,

  Background & Objectives : Exposure to high temperatures is common among workers in warm environments leading to some undesirable effects . The aim of this study was to examine physiological responses to heat stress to determine the optimal index for direct measurement of physiological strain in workers of hot environments .   Methods: In this study, 40 workers of melting and cast...

Journal: :international journal of occupational hygiene 0
mohamadreza monazzam department of occupational health engineering, school of public health, tehran university of medical sciences. farideh golbabaei department of occupational health engineering, school of public health, tehran university of edicalsciences,tehran, iran. rasoul hematjo department of occupational health engineering, faculty of health, bushehr university of medical sciences, bushehr , iran. mostafa hosseini department of epidemiology and biostatistics, school of public health, tehran university of medical sciences. parvin nassiri department of occupational health engineering, school of public health, tehran university of medical sciences. somayeh fahang-dehghan department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran.

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...

Journal: :Industrial Health 2006

2015
Kathryn Glass Peter W. Tait Elizabeth G. Hanna Keith Dear Paul B. Tchounwou

Individuals living in hot climates face health risks from hyperthermia due to excessive heat. Heat strain is influenced by weather exposure and by individual characteristics such as age, sex, body size, and occupation. To explore the population-level drivers of heat strain, we developed a simulation model that scales up individual risks of heat storage (estimated using Myrup and Morgan's man mo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1371

the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...

2018
Chuansi Gao Kalev Kuklane Per-Olof Östergren Tord Kjellstrom

Global warming will unquestionably increase the impact of heat on individuals who work in already hot workplaces in hot climate areas. The increasing prevalence of this environmental health risk requires the improvement of assessment methods linked to meteorological data. Such new methods will help to reveal the size of the problem and design appropriate interventions at individual, workplace a...

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