Carbon-Nanotube-Based Motor Driven by a Thermal Gradient

2013 ◽  
Vol 117 (6) ◽  
pp. 3109-3113 ◽  
Author(s):  
I. Santamaría-Holek ◽  
D. Reguera ◽  
J. M. Rubi
Keyword(s):  
Carbon Nanotube ◽  
Thermal Gradient

Nanoscale Continuous Directional Motion Driven by a Cyclic Thermal Field

2021 ◽  
pp. 1-19
Author(s):  
Yichang Chen ◽  
Jiantao Leng ◽  
Zhengrong Guo ◽  
Yingyan Zhang ◽  
Tienchong Chang
Keyword(s):  
Carbon Nanotube ◽  
Thermal Gradient ◽  
Thermal Field ◽  
Joint Actions ◽  
Thermal Fields ◽  
Heating Region ◽  
Directional Motion ◽  
Gradient Forces ◽  
Controllable Motion ◽  
Novel Devices

Abstract Directional motion plays a crucial role in various mechanical systems. Although mechanisms for nanoscale directional motion have been widely used in many aspects of nanotechnology, it remains a great challenge to generate continuous and controllable motion at the nanoscale. Herein we propose a nanoscale continuous directional motion in cyclic thermal fields by using a double-walled system which consists of an outer BN/C heterojunction nanotube and a concentric inner carbon nanotube (CNT). By manipulating the heating region of the outer BN/C heterojunction tube, the continuous motion of the inner CNT can be realized with ease. The inner CNT demonstrates three distinct movements due to the joint actions of the asymmetric thermal gradient forces and interlayer attraction forces caused by the presence of the outer BN/C heterojunction nanotube. The mechanism revealed in the present study may be useful in designing novel devices for energy conversion and directional transportation.

Analysing thermophoretic transport of water for designing nanoscale-pumps

2018 ◽  
Vol 20 (48) ◽  
pp. 30321-30330 ◽  
Author(s):  
Rakesh Rajegowda ◽  
Sarith P. Sathian
Keyword(s):  
Carbon Nanotube ◽  
Water Transport ◽  
Thermal Gradient

The net flow of water through a thermal nanopump is linearly dependent on the imposed thermal gradient of the carbon nanotube, leading to controlled water transport.

Fission Gas Bubbles in Fractured UO2

1968 ◽  
Vol 26 ◽  
pp. 286-287
Author(s):  
O. M. Katz
Keyword(s):  
Electron Microscopy ◽  
Thermal Gradient ◽  
Gas Bubbles ◽  
Inert Gas ◽  
Thermal Gradients ◽  
Fission Gas ◽  
Beam Heating ◽  
Limited Application ◽  
Bubble Characteristics ◽  
Electron Beam Heating

The swelling of irradiated UO2 has been attributed to the migration and agglomeration of fission gas bubbles in a thermal gradient. High temperatures and thermal gradients obtained by electron beam heating simulate reactor behavior and lead to the postulation of swelling mechanisms. Although electron microscopy studies have been reported on UO2, two experimental procedures have limited application of the results: irradiation was achieved either with a stream of inert gas ions without fission or at depletions less than 2 x 1020 fissions/cm3 (∼3/4 at % burnup). This study was not limited either of these conditions and reports on the bubble characteristics observed by transmission and fractographic electron microscopy in high density (96% theoretical) UO2 irradiated between 3.5 and 31.3 x 1020 fissions/cm3 at temperatures below l600°F. Preliminary results from replicas of the as-polished and etched surfaces of these samples were published.

Carbon Nanotube and Graphene Device Physics

2009 ◽  
Author(s):  
H.-S. Philip Wong ◽  
Deji Akinwande
Keyword(s):  
Carbon Nanotube ◽  
Device Physics

Carbon nanotube instillation in mice causes sustained pulmonary inflammation and apoptosis of alveolar macrophages

Pneumologie ◽  
2011 ◽  
Vol 65 (12) ◽  
Author(s):  
NC Habel ◽  
S Hirn ◽  
F Tian ◽  
O Eickelberg ◽  
T Stoeger
Keyword(s):  
Carbon Nanotube ◽  
Alveolar Macrophages ◽  
Pulmonary Inflammation
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