Calculation specification of acoustic screens located in production area

Area-Specification affected by Industrial-Mineral Pollution in Isfahan Province

Air pollution is a consequence of human activities, especially in the period after industrial revolution, which has many (direct and indirect) effects on the human and the environment around him. Among different kinds of pollutions, those related to industries and mines are much more dangerous. Therefore, it is necessary to identify these pollutions and specify them so as to reduce the harmful ...

Located Accountabilities in Technology Production

This paper explores the relevance of recent feminist reconstructions of objectivity for the development of alternative practices of technology production and use. I take as my starting place the working relations that make up the design and use of technical systems. Working relations are understood as sociomaterial connections that sustain the visible and invisible work required to construct co...

molecular and physiological characterizations of floral scent production in rosa damascena mill.

گل محمدی (r. damascena mill.)مهمترین گونه ای است که در تولید گلاب، عطر و اسانس، در صنعت عطرسازی و دارویی کاربرد دارد. با وجود اهمیت عطر گل محمدی، پژوهش های مولکولی و بیوشیمیایی عطر گل این گونه هنوز در مراحل ابتدایی است. در این پژوهش، ویژگی های مولکولی و فیزیولوژیکی تولید عطر در گل محمدی در آزمایش های مختلف مورد بررسی قرار گرفتند. در آزمایش اول، پژوهشی به منظور بررسی تنوع شیمیایی اسانس میان 44 ت...

Shadow Price Specification of Natural Gas in Production Activities of the Iranian Economy

Natural gas plays a key role in Iran’s economy and using its shadow price in allocating it to different sectors can lead to optimal use of this resource. This study uses a non-linear input-output model to estimate the shadow price of natural gas in different economic sectors in Iran. The study uses values of the input-output table constructed by the Statistics Center of Iran for the year 2011. ...

Super-Absorption of Acoustic Waves with Bubble Meta-Screens