نتایج جستجو برای: nano zero

تعداد نتایج: 199138  

Journal: :international journal of environmental research 0
s. shafieiyoun civil and environmental engineering department, amirkabir university of technology (aut), hafez st., tehran, 15875-4413, iran t. ebadi civil and environmental engineering department, amirkabir university of technology (aut), hafez st., tehran, 15875-4413, iran m. nikazar chemical engineering department, amirkabir university of technology (aut), hafez st., tehran, 15875-4413, iran

leachate treatment from municipal landfills has been always a major anxiety in waste management due to its high level of various contaminations. in this paper the effect of nanosized zero valent iron particles (nzvi) in fenton process for the treatment of high cod strength landfill leachate was scrutinized. the results corroborated this procedure was fast and efficient. in fact, about 87% of in...

رحمانی, آیت, رحمانی, حسن, رحمانی, کوروش, زارع, محمد رضا,

زمینه و هدف: حضور باقیمانده آنتی بیوتیک ها در محیط زیست امروزه به عنوان یکی از نگرانی های جهانی مطرح شده است و لزوم کنترل تخلیه آنها نیز بعنوان امری اجتناب ناپذیر مطرح شده است. این تحقیق، با هدف بررسی کارایی فرآیند تلفیقی شبه فنتون (UV/H2O2/nZVI) جهت تجزیه آنتی بیوتیک تتراسایکلین از محیط های آبی صورت گرفت. مواد و روشها: این تحقیق یک مطالعه تجربی بود که در مقیاس آزمایشگاهی و در دمای محیط انجام ...

2013
Shoichi Toyabe Eiro Muneyuki

Molecular motor is a nano-sized chemical engine that converts chemical free energy to mechanical motions. Hence, the energetics is as important as kinetics in order to understand its operation principle. We review experiments to evaluate the thermodynamic properties of a rotational F1-ATPase motor (F1-motor) at a single-molecule level. We show that the F1-motor achieves 100% thermo dynamic effi...

2015
Ping-Yuan Lo Heng-Na Xiong Wei-Min Zhang

In the last two decades, considerable advances have been made in the investigation of nano-photonics in photonic crystals. Previous theoretical investigations of photon dynamics were carried out at zero temperature. Here, we investigate micro/nano cavity photonics in photonic crystals at finite temperature. Due to photonic-band-gap-induced localized long-lived photon dynamics, we discover that ...

2012
A. Akbari F. Mohamadzadeh

Nowdays, iron nanoparticles due to their unique characteristics are used in all of sciences and technology. These nano particles due to their electrical, magnetic, optical and catalytic properties and having high area and activity that is promped by their small size and most importantly many scientists from the entire world are interested in their low cost production. In this project we used me...

Journal: :Bioresources 2021

Water treatment using nano-materials can have a significant impact due to its surface properties. Coagulation techniques were studied by 3 mL/L of 0.5% different coagulants (polyacrylamide, poly aluminum chloride (PAC), ferric chloride, sulfate, and nanocellulose). Results indicated that the turbidity removal efficiency 91.6%, 93.04%, 95.2%, 95.4%, 99.4%, respectively. Treatment water samples c...

Madagascar periwinkle is one of the important medicinal plants belonging to Apocynaceae family. In this study the effects of nano zinc oxide on growth index wet and dry weight, leaf surface, photosynthetic pigments, total carbohydrates and amount of elements were investigated. Experiments were designed completely randomized in greenhouse culture conditions with three replications. Zinc oxide na...

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