نتایج جستجو برای: psychological environment

تعداد نتایج: 648075  

Journal: :Journal of occupational and environmental medicine 2001
U Bültmann I Kant L G van Amelsvoort P A van den Brandt S V Kasl

Differences in fatigue and psychological distress across occupations were examined among 8521 employees participating in the Maastricht Cohort Study of "Fatigue at Work." Additional information on the perceived psychosocial work environment was incorporated. A total of 131 occupations, classified according to the Netherlands Standard Classification of Occupations 1992, were studied. Results sho...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

one of the most commonly used techniques to reduce the corrosion rate of rebar in concrete is addition substances named corrosion inhibitors into the concrete. corrosion inhibitor is chemical compounds that were added to concrete to prevent corrosion of steel in concrete. sodium nitrate is a type of anodic inhibitors that this study investigatesthe effect of this inhibitor on the properties of ...

Journal: :IOP Conference Series: Materials Science and Engineering 2019

Journal: :JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 1973

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