نتایج جستجو برای: acid gases

تعداد نتایج: 787097  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد علوم دارویی - دانشکده داروسازی 1392

از آنجا که دانه ی گیاه خرفه منبع غنی ای از اسید های چرب ضروری میباشد لذا نیازمند روشی کارامد جهت استخراج بهینه این اسیدهای چرب میباشیم.با توجه به مزایای روش استخراج با سیال فوق بحرانی شامل سرعت استخراج,گزینش پذیری و کنترل حلالیت,اثر پیش تغلیظ کنندگی, کمی بودن استخراج,تمیزی و ایمنی, دمای پایین ,سادگی ,صرفه جویی در هزینه و قابلیت ادغام با تکنیک های دیگراین روش جدید استخراج برای استخراج اسیدهای چر...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1393

چکیده در این پایان نامه، در ابتدا از واکنش بین پالادیم استات و آلیزارین زرد gg کمپلکس دو هسته ای ارتوپالادیت [pd{? 2(c,n) -{5-(3-nitrophenylazo) salicylic acid}}(µ-oac)]2 (1) ستنز شد. از واکنش این کمپلکس دو هسته ای ارتوپالادیت (1) با لیگاند های تک دندانه تری فنیل فسفین (pph3)، 6،4،2-تری متیل-پیریدین(me3py) کمپلکس های تک هسته ای (2)، (3) سنتز شدند. همچنین از واکنش بین پالادیم استات و آلیزارین ز...

Journal: :iranian journal of veterinary research 2011
h. moayyedian k. asasi s. nazifi m. hassanzadeh m. ansari-lari

the objective of this study was to find a relationship between blood gas parameters and thyroid hormoneactivity with ascites syndrome in broiler chickens exposed to cold temperature and receiving a high qualitydiet. one hundred and sixty one-day-old broiler chicks were randomly divided in two equal groups. toincrease the incidence of ascites, chicks of group 1 were fed ad libitum with a higher ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده علوم پایه 1388

introduction acetic acid bacteria are large group of obligate aerobic gram negative bacteria with the ability to oxidize ethanol to acetic acid (1). they are widely distributed in natural habitats and classified in family acetobacteraceae. members of this family are useful in industrial production of vinegar(2). acetic acid bacteria (aab) can use substrates as glucose, ethanol, lactate or glyc...

Journal: :IOP conference series 2022

Abstract Pulp and paper wood plantations are one of the substantial forestry estates in Indonesia that usually integrated with a pulp mill industry. The atmospheric condition glasshouse gases keep increasing primarily due to anthropogenic activities represent critical issues on human health affect forest productivity. Therefore this study measured concentration common pulpwood plantation Riau P...

Journal: :Environment international 2016
B P Chandra Vinayak Sinha

In the north west Indo-Gangetic Plain (N.W.IGP), large scale post-harvest paddy residue fires occur every year during the months of October-November. This anthropogenic perturbation causes contamination of the atmospheric environment with adverse impacts on regional air quality posing health risks for the population exposed to high concentrations of carcinogens such as benzene and toxic VOCs su...

Journal: :Journal of Engineering Science 2022

Flexible films based on novel Te-SnO2 nanocomposites were fabricated for detection of toxic gases at room temperature. The obtained via solvohermal recrystallization pure crystalline tellurium in nitric acid the presence tin chloride. energy-dispersive X-ray spectroscopy (EDX) and XRD analyses have shown that consists fluffy structures tiny agglomerates nanodimensional irregular blocks hexagona...

Journal: :Energy engineering and control systems 2023

The work considers the development of a simulation model and an automated method sorting solid household waste based on identification portion studied raw material with further classification according to accepted groups characteristic chemical composition. A municipal (MSW) their was proposed, which made it possible identify that produce acid gases. basis is model, represented by tabular form ...

Journal: :Greenhouse Gases-Science and Technology 2022

In spite of the increasing levels greenhouse gases in atmosphere, and their impact on environment, demand for natural/biogas will increase significantly coming few decades. To cover this demand, global energy industry is continuously exploiting sour gas reserves located around world. Nonetheless, has to be sweetened before practical utilization natural or biogas. The cryogenic separation techno...

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