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Electrostatic Electron Cyclotron Harmonic Waves as a Candidate to Cause Pulsating Auroras
Fukizawa, M.,Sakanoi, T.,Miyoshi, Y.,Hosokawa, K.,Shiokawa, K.,Katoh, Y.,Kazama, Y.,Kumamoto, A.,Tsuchiya, F.,Miyashita, Y.,Tanaka, Y. ‐,M.,Kasahara, Y.,Ozaki, M.,Matsuoka, A.,Matsuda, S.,Hikish American Geophysical Union 2018 Geophysical Research Letters Vol.45 No.23
Analytic treatment of distributions of lithium neutrals and ions in linear devices
Chung, K.S.,Hirooka, Y.,Ashikawa, N.,Cho, S.G.,Choi, H.G.,Kang, I.J.,Tsuchiya, H. North-Holland 2017 Fusion engineering and design Vol.119 No.-
<P>Neutral lithium (Li) has been used for the mitigation of heat flux to the plasma facing components and for the control of hydrogen of fusion plasmas. Radial and axial variations of densities of Li neutrals and ions are obtained analytically for a cylindrical chamber by assuming the classical diffusion with or without the magnetic field (B). Neutrals and ions without B can be expressed as a linear combination of the modified Bessel functions of order zero (I-0 and K-0), while ions with B are to be expressed as the square root of them. Analytical solutions of Li neutral densities with Dirichlet and Neumann boundary conditions are compared to those using Monte Carlo simulation and experimental values of the LIGHT-1 (Lithium Injection Gettering of Hydrogen and its Transport experiments) device. Proper combinations of the relaxation length and size of the source would produce well fitted profiles similar to those observed experimentally and those using Monte Carlo codes. (C) 2017 Elsevier B.V. All rights reserved.</P>
High-density assembly of nanocrystalline silicon quantum dots
A. Tanaka,G. Yamahata,Y. Tsuchiya,K. Usami,H. Mizuta,S. Oda 한국물리학회 2006 Current Applied Physics Vol.6 No.3
This paper reports on a new bottomup technique of forming silicon nanostructures based on assembly of nanocrystalline (nc) Si dotsfrom the solution. The nc-Si dots with a diameter of 8 ± 1 nm were fabricated by using VHF plasma decomposition of pulsed SiH4 gassupply and deposited on the substrate randomly. We rst studied the method of making the nc-Si dot dispersion solution by immersingthe deposited wafer into various kinds of solvent with ultra sonic treatment. We found that methanol works as a suitable solvent for nc-Sidots. We then add a drop of the nc-Si dot solution onto other substrates and evaporated it. During the evaporation the nc-Si dots wereassembled in the solution via the lateral capillary meniscus force which works as an attractive force between the dots. Use of SiO2 sub-strate with good surface wettability with the solution was found vital to have the maximum meniscus force and to have two-dimensionalassembly of the dots. The evaporation speed was carefully controlled via temperature and evaporation pressure to achieve high dot den-scale patterning and succeeded in making the nc-Si dots cluster bridging between the nanoelectrodes with a gap of as small as 20 nm.
Li, X.,Kanegasaki, S.,Jin, F.,Deng, Y.,Kim, J.-R.,Chang, H. W.,Tsuchiya, T. Wiley-Blackwell Publishing Ltd 2018 Allergy Vol.73 No.2
<P>Conclusion: Fc epsilon RI stimulation in BMMC and basophils induces HSP70 expression and its release. Extracellular HSP70 induces degranulation and mediator release via phosphorylation of LAT.</P>