نتایج جستجو برای: carbon nano structure

تعداد نتایج: 1859718  

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In the present study, the effect of Iron Nitrate as catalytic precursor to in situ formation of nano-Fe particles in phenolic resin and microstructural evolution of MgO-C refractories has been investigated. Therefore, various samples according to matrix section formulation of low carbon MgO-C refractories (LCMCR’s) with 0 and 6 wt% (Fe/Phenolic resin) were prepared and phase and microstructure ...

In the process of crude oil desalination, the aim is to separate dispersed phase of brine from oil phase. The project aim is the use of carbon nano-adsorbent for remov-al of salt from crude oil that, unlike other methods of salt separation from crude oil currently used, is a simple, inexpensive method with good ability to remove salt from crude oil. In this study, first, four types of carbon ad...

In this study, carbon nano-micro spheres with tightly controllable size, regularand perfect shape, high yields and narrow size distribution were prepared simply fromglucose and DI water as precursors using a hydrothermal method. By setting the initialconcentration of glucose solution and changing the hydrothermal process time at aconstant temperature of 160 °C, carbon spheres with various sizes...

M. Mahmoudifard M. Safi S. Rahmani

Ultraviolet waves, because of their short wavelength, have a high energy and considerable damaging effects on surfaces. Protection against ultraviolet radiations is one of the finishing treatments done on surfaces exposed to sunlight. The importance of this issue in relation to human health, due to complications such as skin burns and cancer, is doubled. Up t...

Journal: :The Journal of The Institute of Electrical Engineers of Japan 2007

2009
Ju-Hyun Kim Yong-Bum Park Yang-Kyu Choi

A new method to fabricate the trans-scale structure of the micro-scale bowl and the nano-scale carbon nanotube (CNT) forest is presented. The new method mimics the natural structure of a superhydrophobic surface like a lotus leaf. The robust silicon microstructure (Si microbowl) and the subsequent CVD growth of CNT have successfully combined the nanoscale CNT forest on the Si microbowl for enha...

2013
Cheol-Hong Lim Mingu Kang Jeong-Hee Han Hyo-In Yun

OBJECTIVES This study was conducted to determine whether nano-sized carbon black exposure results in greater damage in high fat diet-induced overweight rats than normal weight ones and to identify the possible causes of any differences. METHODS Two groups of Sprague-Dawley rats allocated by body weight (normal and overweight) were exposed to aerosolized nano-sized carbon black for 6 hours a d...

Journal: :gastroenterology and hepatology from bed to bench 0
fariba ghasemvand esmaeil biazar sara tavakolifard mohammad khaledian saeid rahmanzadeh daruosh momenzadeh

aim : the aim of this study is to design multi-walled carbon nanotubes (mwcnts) loaded with paclitaxel (ptx) anti-cancer drug and investigate its anti-cancerous efficacy of human gastric cancer. the sidewall surfaces of pristine mwcnts are highly hydrophobic. a major goal in carbon nanotube chemistry has been functionalization for aqueous solubility, and exploiting nano-tubes as macromolecules ...

2016
Jae-Kap Lee Jin-Gyu Kim K. P. S. S. Hembram Yong-Il Kim Bong-Ki Min Yeseul Park Jeon-Kook Lee Dong Ju Moon Wooyoung Lee Sang-Gil Lee Phillip John

Over the history of carbon, it is generally acknowledged that Bernal AB stacking of the sp2 carbon layers is the unique crystalline form of graphite. The universal graphite structure is synthesized at 2,600~3,000 °C and exhibits a micro-polycrystalline feature. In this paper, we provide evidence for a metastable form of graphite with an AA' structure. The non-Bernal AA' allotrope of graphite is...

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