gte mso 9]> مقاله حاضر انتقال حرارت جابجایی طبیعی درون یک محفظه مربعی با دو جفت چشمه و چاه روی دیواره­های افقی بالائی و پائینی حاوی نانو سیال آب-آلومینا را به صورت عددی مورد مطالعه قرارداده است. چشمه و چاه حرارتی به ترتیب دارای دماهای Th و Tc  می باشند. معادلات حاکم بر جریان توسط یک برنامه کامپیوتری که به زبان فرترن، بر اساس روش حجم کنترل و الگوریتم سیمپل نوشته شده است، حل شده اند. اثر پارا...

Introduction: Musculoskeletal disorders are amongst dominant occupational injuries and disabilities in developed and developing countries. The RULA technique is one of the best methods for assessing upper limbs postures. The purpose of this study was to investigate the working postures using RULA and ergonomic interventions in the quality control unit of a glass manufacturing company. M...

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MicrosoftInternetExplorer4 Background and Objectives: since there is not any information about the quality and quantity of carpet cleaning wastewater, this study was done for the evaluation of carpet cleaning wastewater   characterization in Tehran.Materials and Methods: There are 122 carpet-cleaning units in Tehran. Compound samplings were taken from 10 randomly selected carpet-cleaning...

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