نتایج جستجو برای: Work Index

تعداد نتایج: 1314395  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده مهندسی فرایند 1395

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

Journal: :health scope 0
hamidreza mokarami department of ergonomics, school of health, shiraz university of medical sciences, shiraz, iran seyed bagher mortazavi department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, iran; department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, iran. tel: +98-2182883825 ali asgari department of counseling, university of social welfare and rehabilitation sciences, tehran, iran alireza choobineh research center for health sciences, institute of health, shiraz university of medical sciences, shiraz, iran

conclusions the was could be used for reliable assessment of work ability among iranian workers. to improve the worker’s work ability, interventional programs should focus on the alteration and correction of work schedule, and increasing the supervisor’s support for the young workers. objectives the present study aimed to assess work ability using wai and was instruments and to compare their re...

Journal: :international journal of preventive medicine 0
ehsanollah habibi habibollah dehghan mohhamad zeinodini hosseinali yousefi akbar hasanzadeh

background: the purpose of this research is to establish the ability of employees by work ability index (wai), physical work capacity (pwc), and finding the correlation between them . establishing the pwc index with attention to wai values for the purpose of saving in costs and time of pwc measurements is another aim of this project. methods: the present research is an analytic cross-sectional ...

Journal: :journal of basic research in medical sciences 0
jafar akbari department of occupational health engineering, school of health, isfahan university of medical sciences, isfahan, iran meghdad kazemi department of occupational health engineering, school of health, ilam university of medical sciences, ilam, iran shahram safari department of occupational health engineering, school of health, ilam university of medical sciences, ilam, iran mohammad amin mououdi department of occupational health engineering, school of health, mazandaran university of medical sciences, sari, iran behzad mahaki department of statistics, school of health, isfahan university of medical sciences, isfahan, iran

introduction: to reduce occupational accidents and work-related diseases as well as improving satisfaction of working conditions, assessment to identify risks and control measures are necessary. the aim of this study, applying ergonomic assessment indices to assessed the job groups and ability of textile workers. materials and methods: this study was conducted on 194 men employed in the qaembaf...

Journal: :int. journal of mining & geo-engineering 2012
mohammad noaparast s rahmati g. jozanikohan s. aslani a. ghorbani

it is always attempted to reduce the costs of comminution in mineral processing plants. one of thedifficulties in size reduction section is not to be designed properly. the key factor to design size reductionunits such as crushers and grinding mills, is ore’s work index. the work index, wi, presents the oregrindability, and is used in bond formula to calculate the required energy. bond has defi...

Journal: :journal of sleep sciences 0
zahra banafsheh alemohammad occupational sleep research center, baharloo hospital, tehran university of medical sciences, tehran, iran seyed mohammad esmaeil taghavi occupational sleep research center, baharloo hospital, tehran university of medical sciences, tehran, iran akbar sharifian occupational medicine department, school of medicine, tehran university of medical sciences, tehran, iran

background and objective : restless legs syndrome (rls) is a sleep disorder with an association to sleep quality. we investigated the sleep quality in patients with rls among health-care workers with or without shift work. materials and methods : all female health-care workers (n = 540) in four educational hospitals were enrolled in this cross-sectional study. international rls study group (irl...

Journal: :تحقیقات نظام سلامت 0
احسان اله حبیبی دانشیار، عضو هیأت علمی، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. حبیب اله دهقان مربی، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران محمد زیندینی دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، مهندسی بهداشت حرفه ای، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران حسینعلی یوسفی مربی، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران اکبر حسن زاده مربی، مرکز تحقیقات امنیت غذایی، گروه آمار زیستی و اپیدمیولوژی، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

background: the correct appraisal of the employees' work ability is important for employers in the economic viewpoint. improving the personnel's work ability is a way to increase the productivity of human resources in industries and organizations. the purpose of this research was to evaluate the ability of employees by work ability index (wai) and physical work capacity (pwc) and to find a corr...

Journal: :International Heart Journal 2018

Journal: :Occupational Medicine 2006

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