نتایج جستجو برای: economical process

تعداد نتایج: 1327445  

Journal: :international journal of environmental research 2014
j. grzechulska – damszel m. grześkowiak j. przepiórski a.w. morawski

the photocatalytic decomposition of trichloroethylene (tce) and tetrachloroethylene (pce)in water was studied. tce and pce were present in water at very low concentrations of about 15 μg/dm3. thisconcentration level corresponds to the one occasionally occurring in groundwater. results of this researchconfirmed usefulness of the photocatalytic process for successful removal of low-concentrated t...

Journal: :Forest@ - Rivista di Selvicoltura ed Ecologia Forestale 2011

Journal: :Journal of Veterinary Epidemiology 1998

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده اقتصاد و علوم اجتماعی 1390

abstract deviation or in other words committing a crime is literally a social problem. this research that was conducted in 1389 and 1390 has tried to investigate the causes of crimes committed by young male inmates qazvin central prison and effective variables on their tendency to deviation. accordingly after collecting theoretical framework and offering theoretical model including both hirsch...

Journal: :Steel Construction 2018

Journal: :IOSR Journal of Mechanical and Civil Engineering 2017

Journal: :International Journal of Business and Economics Research 2013

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