254 research outputs found
Differential Sensitivity in Auditory Flutter Measured by the Constant Method and the Method of Just Noticeable Difference
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Millimeter-Thick Single-Walled Carbon Nanotube Forests: Hidden Role of Catalyst Support
Full text linkA parametric study of so-called "super growth" of single-walled carbon
nanotubes(SWNTs) was done by using combinatorial libraries of iron/aluminum
oxide catalysts. Millimeter-thick forests of nanotubes grew within 10 min, and
those grown by using catalysts with a thin Fe layer (about 0.5 nm) were SWNTs.
Although nanotube forests grew under a wide range of reaction conditions such
as gas composition and temperature, the window for SWNT was narrow. Fe
catalysts rapidly grew nanotubes only when supported on aluminum oxide.
Aluminum oxide, which is a well-known catalyst in hydrocarbon reforming, plays
an essential role in enhancing the nanotube growth rates.Comment: 11 pages, 3 figures. Jpn. J. Appl. Phys. (Express Letters) in pres
<Abstract of annual report>Activation of Carcinogenic N-Nitrosopropylamines to Mutagens by Lung and Pancreas S9 Fractions from Various Animal Species and Man.
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<Abstract of annual report>Carcinogenic Potency of N-nitrosomethyl(2-hydroxypropyl)amine and Other Metabolic Relatives of N-Nitrosobis(2-hydroxypropyl)amine by Single Intraperitoneal Injection on the Lung of Rats.
Get PDF<Abstract of annual report>Initiation activity of endogenously synthesized N-nitrosobis(2-hydroxypropyl)amine in the rat liver.
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