نتایج جستجو برای: carbon nano tube

تعداد نتایج: 420571  

2015
Pramod Yeole Dinesh V. Padole

This paper presents effective design of ternary ALU using Carbon Nano tube Field effect transistor (CNTFET) atv32 nm technology. Ternary logic is possible substitutes to traditional binary logic, because more number operation can performed using ternary logic as compare to binary logic due to this possible to achieve simplicity and energy efficient inrecent digital logic design due to reduced c...

2011
Shenbao Jin Ping Shen Dongshuai Zhou Qichuan Jiang

With using the carbon nano-tube (CNT) of high chemical activity, nano-TiCx particles with different growth shapes were synthesized through the self-propagating high temperature in the 80 wt.% metal (Cu, Al, and Fe)-Ti-CNT systems. The growth shapes of the TiCx particles are mainly octahedron in the Cu- and Al-Ti-CNT systems, while mainly cube- and sphere-like in the Fe-Ti-CNT system.

1999
Mark Brehob Richard J. Enbody

It seems likely that density concerns will force the DRAM community to consider using radically different schemes for the implementation of memory devices. We propose using nano-scale carbon structures as the basis for a memory device. A single-wall carbon nanotube would contain a charged buckyball. That buckyball will stick tightly to one end of the tube or the other. We assign the bit value o...

2008
Young-Kyun Kwon David Tomanek Mark Brehob Richard Enbody

It seems likely that density concerns will force the DRAM community to consider using radically different schemes for Ihe implementation of memory devices. We propose using nano-scale carbon structures as the basis for a memory device. A single-wall carbon nanotube would contain a charged buckyball. That buckyball wiLL stick tightly to one end of the tube or the other. We assign the bit value o...

Journal: :international journal of nanoscience and nanotechnology 2014
s. rahmani m. mahmoudifard m. safi

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 to now, different materials such as z...

Journal: :محیط شناسی 0
سعید اسکندری دانشجوی دکتری مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران علی ترابیان استاد گروه مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران غلامرضا نبی بید هندی استاد گروه مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران مجید بغدادی استادیار گروه مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران بهنوش امین زاده استادیار گروه مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران

introduction conventional water treatment consist of unit processes include coagulation, flocculation, clarification, filtration and disinfection that goal is removal of turbidity, color and certain bacterial species. in filtration process flocculated substances that have not removed in pervious stage are sediment. filter media is often silica sand that removal mechanism is complex and consists...

2016
A. Misra C. Daraio

We report on the nano-electron beam assisted fabrication of atomically sharp iron-based tips and on the creation of a nano-soldering iron for nano-interconnects using Fe-filled multiwalled carbon nanotubes (MWCNTs). High energy electron beam machining has been proven a powerful tool to modify desired nanostructures for technological applications (1-4) and to form molecular junctions and interco...

Journal: :Physical review letters 2009
H Shiozawa T Pichler C Kramberger M Rümmeli D Batchelor Z Liu K Suenaga H Kataura S R P Silva

The excitement of nano-test-tube chemistry in a single-walled carbon nanotube is exemplified in our study on electron doping in carbon nanotubes. Electron doping through the 1D van Hove singularity of single-walled carbon nanotubes is realized via a chemical reaction of an encapsulated organocerium compound, CeCp3. The decomposition of CeCp3 inside the carbon nanotubes increases the doping leve...

Journal: :Physical review letters 2003
Yang Zhao Chi-Chiu Ma GuanHua Chen Qing Jiang

Energy transfer from the translational degrees of freedom to phonon modes is studied for isolated systems of two coaxial carbon nanotubes, which may serve as a nearly frictionless nano-oscillator. It is found that for oscillators with short nanotubes (less than 30 A) a rocking motion, occurring when the inner tube is pulled about 1/3 out of the outer tube, is responsible for significant phonon ...

2013
Chen Wei Wang Xiaozhen Pan Yi

Carbon nanotube is a kind of the special structure of material. Its radial length is nano-level and axial length is micron order of magnitude. Both ends of this one-dimensional quantum tube are basically sealed. Several dozens of layers of coaxial pipe is made up of the hexagonal arrangement of carbon atoms. In this paper, the Organic polymer Composite Materials Modified by Carbon Nanotube is i...

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