نتایج جستجو برای: carbon

تعداد نتایج: 281206  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده فیزیک 1394

تحقیق حاضر، به طراحی، ساخت و سخت سازی پوشش نابازتابنده چندلایه بر بستره سولفید روی با استفاده از مواد ژرمانیوم و سولفید روی در بازه طول موجی ? تا ?? میکرومتر می پردازد. در قسمت اول، موادی که در این ناحیه طول موجی شفاف هستند بررسی شدند و ژرمانیوم و سولفید روی انتخاب شدند. بعد از انتخاب مواد، طراحی نرم افزاری با استفاده از نرم افزار مخصوص لایه های نازک مکلئود (macleod) انجام می شود. بعد از انجام ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده علوم 1389

کلمات کلیدی: اکسیداسیون الکتروشیمیایی متانول – خمیر کربن – زوج ردوکس niii/niiii – الکترود اصلاح شده . کربن فعال شده ،nacl ، پتاسیم هیدروکسید، پایداری الکترود.

Malaysia, as a small and developing country, must reduce carbon emissions because the country is one of the top CO2-emitting countries in the ASEAN region. Therefore, the current study implements two environmental tax policies; carbon and energy taxes, in order to examine the impacts of these policies on the reduction of carbon emission in the whole of the economy by applying a compu...

ژورنال: علوم آب و خاک 2018

To assess the effects of different levels of soil lead on mineralization of organic carbon and nitrogen, a factorial pot experiment was conducted using litter bag method. The factors examined were different levels of soil lead (0, 25, 50, 100, and 200 mg kg-1soil) and incubation periods (1, 2, 3 and 4 months) in three replications. At the end of incubation periods, the litter bags were pulled o...

ژورنال: سلامت و محیط زیست 2010
امین, محمد مهدی, بنیادی نژاد, غلامرضا, جابریان, بهزاد, خدابخشی, عباس, سعدانی, محسن, هادیان, رضا,

Backgrounds and Objectives: Powdered Activated$ carbon is known as a suitable absorbent for organic materials. The aim of this research is evaluation of Powdered Activated-Carbon (PAC) efficiency in removal of Dissolved Organic Carbon (DOC) in water treatment in Isfahan.Materials and Methods : The increase of PAC for DOC reduction has done in three paths in the Isfahan water treatment plant (WT...

In this work, the first in the world of science, the focus was on the best angle of connection between carbon nanotubes and the most widely used group of antibiotics. While having the highest stability, in terms of energy, we have the best angle of to connect to the in vivo delivery of intraoperative antibiotic binding with carbon nanotubes not lost. It will never work in the world of science. ...

Since a high toxicity of cyanide which use as a reagent in the gold processing plant, thiosulfate has been recognized as a environmental friendly reagent for leaching of gold from ore. After gold leaching process it's important for recovery of gold from solution using adsorption or extraction methods, One of these methods is activated carbon.The loading of gold from industrial thiosulfate solut...

Mohsen Esmaili Seyedeh Khadijeh Mahdavi,

Climate changes and global warming are considered as very important challenges of sustainable development. Carbon sequestration is the easiest and cheapest way to reduce the greenhouse gases, especially carbon which constitutes the largest portion of them. In the present study, the potential of carbon sequestration in four plant species of Atriplex canescens, Haloxylon persicum, Artemisia siebe...

Journal: :international journal of environmental research 2013
s. gonzález-ubierna i. jorge-mardomingo m.t. cruz i. valverde m.a. casermeiro

this work investigates the effect of the application rate and type of sludge throughout the soilcarbon cycle in a semiarid mediterranean agro-ecosystem. we study the two-year evolution of the variouspools of soil organic and inorganic carbon and their influence on soil respiration. we applied three rates (40, 80 and 160 mg/ha) of two types of sludge –aerobically and anaerobically digested sewag...

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