ELECTROCHEMICAL PROPERTIES OF MUIJTIWALL CARBON NANOTUBES

Article先進繊維技術科学に関する研究報告 平成11年度成果報告 6: 17-19(2000)research repor

Complexity reduction of astrochemical networks

We present a new computational scheme aimed at reducing the complexity of the chemical networks in astrophysical models, one which is shown to markedly improve their computational efficiency. It contains a flux-reduction scheme that permits to deal with both large and small systems. This procedure is shown to yield a large speed-up of the corresponding numerical codes and provides good accord with the full network results. We analyse and discuss two examples involving chemistry networks of the interstellar medium and show that the results from the present reduction technique reproduce very well the results from fuller calculations.Comment: 9 pages, 7 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society Main Journa

Reversible Fluorination of Graphene: towards a Two-Dimensional Wide Bandgap Semiconductor

We report the synthesis and evidence of graphene fluoride, a two-dimensional wide bandgap semiconductor derived from graphene. Graphene fluoride exhibits hexagonal crystalline order and strongly insulating behavior with resistance exceeding 10 G$\Omega$ at room temperature. Electron transport in graphene fluoride is well described by variable-range hopping in two dimensions due to the presence of localized states in the band gap. Graphene obtained through the reduction of graphene fluoride is highly conductive, exhibiting a resistivity of less than 100 k$\Omega$ at room temperature. Our approach provides a new path to reversibly engineer the band structure and conductivity of graphene for electronic and optical applications.Comment: 7 pages, 5 figures, revtex, to appear in PR

Avian infectious bronchitis vírus (IBV): effect of vaccine doses on mucosal imune responses and protection after challenge in chickens.

Projeto/Plano de Ação: 05.11.11.002

Immune-protection mechanisms against late challenge with avian infectious bronchitis vírus (IBV) induced by a single-dose of an attenuated vaccine in day-old chicks.

Projeto/Plano de Ação: 05.11.11.00

Improvement of immunodiagnosis of avian infectious bronchitis virus (IBV) infection by the detection of IgM and IgG antibodies using a new recombinant nucleoprotein-based Elisa.

Projeto/Plano de Ação: 05.11.11.002

Levels of antibodies against babesia bigemina and babesia bovis in cows and calves by elisa using recombinant antigens.

Bovine babesiosis is a tick-borne disease that cause fever, anaemia, haemoglobinuria, and ataxia, consequently resulting in losses for the livestock industry. Babesia bigemina and Babesia bovis are considered endemic in the region of this study