A carbon nanotube is a tube-shaped material, made of carbon, having a diameter measuring on the nanometer scale. A nanometer is one-billionth of a meter, or about 10,000 times smaller than a human hair. CNT are unique because the bonding between the atoms is very strong and the tubes can have extreme aspect ratios.
Carbon nanotubes (CNTs) are allotropes of carbon with a cylindrical nanostructure. Nanotubes have been constructed with length-to-diameter ratio of up to 132,000,000:1, significantly larger than for any other material. These cylindr ....etc

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carbon nanotube antenna in the sub terahertz range ppt

Abstract

In this paper, a new antenna configuration is proposed to operate efficiently in the sub-terahertz frequency range (10-1000 GHz). The proposed antenna is composed of a bundle of single-walled carbon nanotubes (SWCNTs) surrounded by two dielectric jackets; the inner of which is dielectric foam with relative permittivity close to unity. The outer one is a metamaterial layer with permittivity much smaller than the free-space permittivity. Rigorous analysis shows that the metamateria ....etc

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Lin Xiao,
Zhuo Chen,
Chen Feng
Liang Liu
Zai-Qiao Bai
Yang Wang
Li Qian
Yuying Zhang
Qunqing Li
Kaili Jiang
Shoushan Fan


Abstract

We found that very thin carbon nanotube films, once fed by sound frequency electric currents, could emit loud sounds. This phenomenon
could be attributed to a thermoacoustic effect. The ultra small heat capacity per unit area of carbon nanotube thin films leads to a wide
frequency response range and a high sound pressure level. On the basis of this finding, we made practical c ....etc

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NANOENGINEERED INDUCTIVELY COUPLED CARBON NANOTUBE WIRELESS STRAIN SENSOR

K. J. Loh, J. P. Lynch, and N.A. Kotov
Department of Civil & Environmental Engineering, University of Michigan, Ann Arbor, MI 48109 USA

Abstract
Since the discovery of carbon nanotubes by Iijima in 1991, researchers have utilized carbon nanotubes for a wide array of applications including nanoelectronics, sensors, and inductively coupled antennas. While current and novel strain transducers can measure strain adequately, their l ....etc

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hai, i need this cnt project.this projectis very intresting , i want do a project on carban nanotube based super capacitor ....etc

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Carbon Nanotube Flow Sensors

Direct generation of measurable voltages and currents is possible when a fluids flows over a variety of solids even at the modest speed of a few meters per second. In case of gases underlying mechanism is an interesting interplay of Bernoulli's principle and the See beck effect: Pressure differences along streamlines give rise to temperature differences across the sample; these in turn produce the measured voltage. The electrical signal is quadratically dependent on the Mach number M and pro ....etc

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u are wonderful ....etc

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Carbon Nanotube Seminar and PPT with pdf report: A carbon nanotube is a honeycomb lattice rolled on to it, with diameters of the order of nanometers and lengths of up to several micrometers.

Seminars are the integral part of engineering. At one point, we all have to make ppt of any topic and submit its report. And getting a right seminar for submission is really a tough task. We have given our full efforts to provide you exact ppt with pdf report for Carbon Nanotube seminar. This page contains Carbon Nanotube Seminar and PPT with pdf report. ....etc

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Carbon Nanotube Antennas for Wireless Communications


Wireless System Evolution
Cellular:
2G GPRS 56-114 kbps
2.5G - EDGE up to 400 kbps (Evolved EDGE 1 Mbps)
3G:
HSPA 7.2 Mbps (AT&T completed 2009)
HSPA+ 21/42 Mbps
LTE/WiMAX/IMT-Advanced 100 Mbps and higher
LTE: 50 Mbps UL, 100 Mbps DL (deployment in 2012 by AT&T)

WLAN:
802.11n:
>100 Mbps in MAC
>3 bits/sec/Hz
802.11ac (< 6GHz) and 802.11ad (60 GHZ)
>500 Mbps page link throughput
>1 Gbps multiuser a ....etc

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Development of the Carbon Fiber Reinforced Carbon-carbon Composite for High Temperature Gas-cooled Reactors
In the present paper. details of the development of the candidate CIC composite are described. In the material development, especially, feasibility of the production. stableness of the supply and cost are much taken into consideration. As the physical properties of the material, high mechanical strength such as tensile and bending, high fracture strain and fracture toughness and low dimensional change by neutron ir ....etc

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