نتایج جستجو برای: energy separation

تعداد نتایج: 779454  

ژورنال: :international journal of new chemistry 0

electrical sensitivity of a boron nitride nanotube (bnnt) was examined toward hydroquinone (c6h4(oh)2) molecule by using density functional theory (dft) calculations at the b3lyp/6-31g(d) level, and it was found that the adsorption energy (ead) of hydroquinone on the pristine nanotube is  a bout -7.77kcal/mol. but when nanotubes have been doped with si and al atomes, the adsorption energy of hy...

ژورنال: :international journal of new chemistry 0

abstract: electrical sensitivity of a boron nitride nanotube (bnnt) was examined toward ethyl acetylene (c4h6) molecule by using density functional theory (dft) calculations at the b3lyp/6-31g (d) level, and it was found that the adsorption energy (ead) of ethyl acetylene the pristine nanotubes is about -1.60kcal/mol. but when nanotube has been doped with si and al atoms, the adsorption energy ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1391

this research is about the political economy of china in central asia. in this research the political & economic interactions affected on chinas political economy in central asia are examined. chinas goal of presence in central asia including political-security, economic and energy goals is described in one part. in another part, the trade relations between china and central asian countries ar...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 2010

Journal: :The Journal of the Acoustical Society of America 1970

Journal: :Journal of the American Chemical Society 2009
Kunhao Li David H Olson Jonathan Seidel Thomas J Emge Hongwei Gong Heping Zeng Jing Li

Propane/propene separation by cryogenic distillation is one of the most energy and cost intensive industrial processes. Adsorptive separation is a more energy-efficient alternative. Three isostructural zinc imidazolate zeolitic framework materials are found, for the first time, to be very promising in the separation of propene and propane based on their different diffusion rates. Fine-tuning of...

2006
Ewa Hansen Jonas Neander Mikael Nolin Mats Björkman

The interest in wireless sensor networks is growing and the development of energy efficient infrastructures for such networks is becoming increasingly important. In this paper we investigate the usefulness of enforcing a minimum separation distance between cluster heads in a cluster based sensor network, i.e. prolonging network lifetime by lowering the energy consumption. The simulations where ...

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