نتایج جستجو برای: 1 computer

تعداد نتایج: 3196702  

Journal: :The Journal of the Institute of Television Engineers of Japan 1992

Journal: :ماشین های کشاورزی 0
رسول معمار دستجردی سعید مینایی محمدهادی خوش تقاضا

non-destructive ultrasonic testing is one of the methods utilized to evaluate quality of agricultural produce. transducers used in this method are made for basically industrial applications. since ultrasonic attenuation of waves in agricultural produce is very high, industrial transducers cannot be used in agriculture and needs to be modified. this is done with horns that concentrate energy on ...

Journal: :Quantum Information and Computation 2007

Journal: :The Journal of the Institute of Television Engineers of Japan 1989

Farideh Sadeghian, Mehdi Raei, Mohammad Amiri,

 Background & Aims of the Study: In developing countries, with increasing use of computer systems, millions of computer workers are at high risk of neck and shoulder pains. The aim of this study was to assess the relationships between work-related physical and psychosocial factors and persistent neck and shoulder pains among computer office workers. Materials & Methods : This longitudin...

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