Results 241 to 250 of about 643,776 (291)

One-dimensionality of phonon transport in cup-stacked carbon nanofibers

Journal of Physics: Condensed Matter, 2010
We treat the ballistic heat conduction of cup-stacked carbon nanofibers (CSCNF) by a nonequilibrium molecular dynamics simulation. The CSCNF consist of numerous tiny graphene cups linked in line by weak intermolecular forces. The simulation results show that the thermal conductivity varies with the fiber length in a power law fashion with an exponent ...
Y, Ito, M, Inoue, K, Takahashi
openaire   +2 more sources

Influence of Participation in a Cup-Stacking Unit on Timing Tasks

Perceptual and Motor Skills, 2005
Cup stacking is a relatively new activity which has been promoted at conferences for physical educators as having many direct and indirect benefits, such as improved quickness. This study examined the influence of a cup-stacking instructional unit on reaction and anticipation times of 69 children in Grades 2 and 4.
Melanie A, Hart, Lori A, Smith, Ann, DeChant   +2 more
openaire   +3 more sources

Synthesis, Purification and Opening of Short Cup-Stacked Carbon Nanotubes

Journal of Nanoscience and Nanotechnology, 2009
A simple method is demonstrated to synthesize high-quality cup-stacked carbon nanotubes (CSCNTs) with short length. The as-synthesized CSCNTs are 0.2-3.2 microm in length, even shorter than the ball-milled long CSCNTs (approximately 7 microm). These CSCNTs have a diameter of 80-120 nm and a hollow channel of 60-100 nm along the nanotube axis. Moreover,
Liu, Qingfeng, Ren, Wencai, Liu, Bilu, Chen, Zhi-Gang, Li, Feng, Cong, Hongtao, Cheng, Hui-Ming   +6 more
openaire   +3 more sources

Fluorination of Cup-stacked Carbon Nanotubes, Structures and Properties

MRS Proceedings, 2004
ABSTRACTCup-stacked carbon nanotubes (Cup-CNTs) was fluorinated in a temperature range RT-500• •by 0.5–1 atm elemental fluorine. The F/C atomic ratio (CF0.4-CF1.2) and the color are strongly dependent on the fluorination conditions. The color of fluorinated Cup-CNTs (F-Cup-CNTs) varies from black, through gray and yellow to white.
Hidekazu Touhara, Akiko Yonemoto, Kazunao Yamamoto, Shingo Komiyama, Shinji Kawasaki, Fujio Okino, Takashi Yanagisawa, Morinobu Endo   +7 more
openaire   +1 more source

A reversible strain-induced electrical conductivity in cup-stacked carbon nanotubes

Nanoscale, 2013
We have used in situ current-voltage measurements of cup-stacked carbon nanotubes (CSCNTs) to establish reversible strain induced (compressive bending) semiconducting to metallic behavior. The corresponding electrical resistance decreases by two orders of magnitude during the process, and reaches values comparable to those of highly crystalline multi ...
Takuya, Hayashi, Thomas C, O'Connor, Katsuhisa, Higashiyama, Kohei, Nishi, Kazunori, Fujisawa, Hiroyuki, Muramatsu, Yoong Ahm, Kim, Bobby G, Sumpter, Vincent, Meunier, Mauricio, Terrones, Morinobu, Endo   +10 more
openaire   +2 more sources

Damping Properties of Cups-Stacked Carbon Nanotubes (CSCNTs)/RTM6 Composites

Advanced Materials Research, 2012
Carbon nanotubes have better physical and mechanical behaviors than the traditional materials, in this study cups-stacked carbon nanotubes (CSCNTs) were filled into epoxy nancomposites to fabricate CSCNTs/epoxy nanocomposites. RTM6 was used by epoxy resin system. The cups-stacked carbon nanotubes (CSCNTs) were dispersed into the RTM6 matrix.
Yan Liu, Rui Feng Li, Hua Xin Peng, Andy Limmack, Zhi Wu Han   +4 more
openaire   +1 more source

Using Stacked Inverse-Reflective Cup Structure to Improve Vertical Light Output and Ambient Contrast Ratio of Light Emitting Diode Display Device

International Conference on Electronic Packaging Technology, 2023
For outdoor displays, high ambient contrast ratio (ACR) and high brightness in the vertical direction of the display screen are crucial. So far, it remains challenging to maintain high ACR while improving vertical brightness output for outdoor display ...
Chonghui He, Yunlong Zhang, Jia-sheng Li, Zongtao Li   +3 more
semanticscholar   +1 more source

Cooperative Control of Bioelectrocatalytic Activity for Thermo- and Photo-Switchable Cup-Stacked Carbon Nanofiber Electrodes Modified with Phase Transition Polymer and Heme Peptide.

Langmuir
Empowering biocatalyst-modified electrodes with the ability to both enforce and perceive will enable the development of intrinsically switchable bioelectrode systems, which exhibit autonomous and heteronomous actions specific to living organisms. However,
Yuta Tani, Hiro Tanigawa, Minghao Liu, Kikuo Komori   +3 more
semanticscholar   +1 more source

Analysis of Stacking Structure of Cup-Stacked Type Carbon Nanofibers

MRS Proceedings, 2002
ABSTRACTThe lattice images of the new type (cup-stacked type) carbon nanofibers were observed by high resolution transmission electron microscopy (HRTEM) and the detailed structure was analyzed by image processing. The angle of opposed graphitic basal planes was measured from power spectrum obtained by 2 dimensional first Fourier transform.
Kyoich Oshida, Tatsuo Nakazawa, Kozo Osawa, Takuya Hayashi, Morinobu Endo, Takashi Yanagisawa, Mildred S. Dresselhaus   +6 more
openaire   +1 more source

Microstructural change of cup-stacked carbon nanofiber by post-treatment

Molecular Crystals and Liquid Crystals, 2002
Structural changes of truncated graphitic conical graphene layers (cups) stacked carbon nanofiber by post-treatment, such as oxidation and heat treatment, are described in terms of microstructure and morphology.
Yoong Ahm Kim, Takuya Hayashi, Yasuo Fukaiand, Morinobu Endo, Takashi Yanagisawa   +4 more
openaire   +1 more source