نتایج جستجو برای: industrial concentration

تعداد نتایج: 520023  

Journal: :The Journal of Law and Economics 1977

Journal: :Vestnik of the Plekhanov Russian University of Economics 2019

Journal: :Sustainability 2023

The resilience of industry has caught much attention since the outbreak COVID-19 pandemic. Most literature argues that spatial concentration is beneficial to industrial development, but few reports discuss its impact on survival from a long-term perspective, namely resilience. Therefore, this study tries answer whether patterns performance through investigating longevity production sites. We ta...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1393

asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...

Background: Contamination of the environment due to heavy metals is a major concern to human life and the environment. This study was conducted to investigate and quantify the copper and zinc concentrations in industrial estates soil in Arak, Iran. Methods: Four industrial estates were considered for the experimental design, including Arak 1, Arak 2, Arak 3, and Ghotbe Sanaati. For prelimin...

Journal: :Transactions of the Society of Instrument and Control Engineers 1996

Journal: :The Quarterly Review of Economics and Finance 2005

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