NEC (Japan)

Helical microtubules of graphitic carbon

Single-shell carbon nanotubes of 1-nm diameter

New one-dimensional conductors: Graphitic microtubules

On the basis of realistic tight-binding band-structure calculations, we predict that carbon microtubules exhibit striking variations in electronic transport, from metallic to se...

Large-scale synthesis of carbon nanotubes

Capillarity-induced filling of carbon nanotubes

Opening carbon nanotubes with oxygen and implications for filling

Pentagons, heptagons and negative curvature in graphite microtubule growth

Mining product reputations on the Web

Knowing the reputations of your own and/or competitors' products is important for marketing and customer relationship management. It is, however, very costly to collect and anal...

Compensation of soliton broadening in nonlinear optical fibers with loss

A novel optical fiber is proposed that supports the lowest-order soliton despite the presence of optical loss. Groupvelocity dispersion of this fiber decreases with distance, in...

Preparation of Carbon Nanotubes by Arc-Discharge Evaporation

Extremely thin graphite filaments with a tubular structure were grown in carbon deposits formed on the negative electrode during generation of fullerenes by dc carbon-arc-discha...