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  • Multi-scale Transport Simulation of Non-local Turbulent Effect on Internal Transport Barrier Collapse in Tokamak Plasma

    TOKUNAGA Shinsuke , YAGI Masatoshi , ITOH Sanae-I. , ITOH Kimitaka

    … The collapse mechanism of internal transport barrier in reversed magnetic shear configuration is investigated using multi-scale global simulation code for ion temperature gradient driven drift wave turbulence with a heat source term. … The modification of the temperature profile gives rise to the excitation of the ion temperature gradient driven mode at the outside edge of the transport barrier and it triggers the collapse. …

    Theoretical and Applied Mechanics Japan 57(0), 429-436, 2009

    DOI

  • Evaluation of Errors in Feedback Control Based on Persistence Prediction in Model-Based Process Controller System for Deep Sub-100 nm Gate Fabrication

    Goto Takeshi K. , Makabe Toshiaki

    … Both long-term process drift in the etching process and long-term instability of the CD measurement tool lead to variations in the process model for APC. …

    Jpn J Appl Phys 45(10A), 7645-7654, 2006-10-15

    応用物理学会

  • Study of Thermal Transport Effects on Drift-Tearing Mode

    Nishimura Seiya , Itoh Sanae-I. , Yagi Masatoshi [他] , Azumi Masahumi , Ito Kimitaka

    … The linear analysis of the drift tearing mode based on four-field reduced two fluid model is performed to investigate thermal transport effects on the growth rate. … It is found that thermal transport along magnetic field line destabilizes the drift-tearing mode and this effect is due to the interaction between the perturbed vector potential and the perturbed temperature. …

    九州大学応用力学研究所所報 (131), 1-12, 2006-09

    機関リポジトリ DOI

  • Projects of the Royal Observatory of Belgium(ROB) at the Lanzarote Geodynamical Laboratory(LGL).

    Ruymbeke Michel van , Somerhausen Andre , Ducarme Bernard , Vieira Ricard , Arnoso José , Velez Emilio

    … A correlation exists between the drift rate of a LaCoste & Romberg gravimeter and the local seismic activity which seems to induce heat flow changes. … Original probes are designed to check the long term stability of pressure sensors. … High precision thermometers (van Ruymbeke et a1., 1999) assume the monitoring of the vertical thermal gradient which could be influenced by the modulation of the salinity by the water flow from aquifers. …

    測地学会誌 47(1), 463-469, 2001

    J-STAGE DOI

  • 濃度勾配法による量子効果を導入したデバイス・シミュレーション

    松沢 一也 , 高木 信一 , 高柳 万里子 [他] , 谷本 弘吉

    濃度勾配法のキャリア濃度としてFangの試行関数を代入し、量子補正ポテンシャルを基板表面からの単純な距離の関数とした。この量子補正ポテンシャルを電流密度の式のドリフト項に加えることによって、実効的に界面量子化の効果をデバイス・シミュレータに導入した。Schrodinger-Poisson計算を再現するように垂直方向の有効質量を調整した上で、実測値との比較を行った。複数のゲート酸化膜厚と基板不純物濃 …

    電子情報通信学会技術研究報告. SDM, シリコン材料・デバイス 100(296), 39-44, 2000-09-15

    参考文献8件

  • 濃度勾配法による量子効果を導入したデバイス・シミュレーション

    松沢 一也 , 高木 信一 , 高柳 万里子 [他] , 谷本 弘吉

    濃度勾配法のキャリア濃度としてFangの試行関数を代入し、量子補正ポテンシャルを基板表面からの単純な距離の関数とした。この量子補正ポテンシャルを電流密度の式のドリフト項に加えることによって、実効的に界面量子化の効果をデバイス・シミュレータに導入した。Schrodinger-Poisson計算を再現するように垂直方向の有効質量を調整した上で、実測値との比較を行った。複数のゲート酸化膜厚と基板不純物濃 …

    電子情報通信学会技術研究報告. VLD, VLSI設計技術 100(294), 39-44, 2000-09-15

    参考文献8件

  • Stabilization of Kinetic Internal Kink Mode by Ion Diamagnetic Effects

    内藤 裕志 , 倉本 丈久 , 小林 俊満 [他] , 矢木 雅敏 , 徳田 伸二 , 松本 太郎

    … In the derivation of the gyro-reduced-MHD model including the ion diamagnetic effects, finite gyroradius effects of ions are added to the gyrokinetic Poisson equation (quasineutral condition) and the convection term of the conservation law of the ion density. … The results of numerical calculation coincide with the theory for |ω_<*e>|+|ω_<*i>|<2γ_0, where the growth rate reduces as the density gradient increases. …

    プラズマ・核融合学会誌 = Journal of plasma and fusion research 76(8), 778-789, 2000-08-25

    CiNii 外部リンク 国立国会図書館デジタルコレクション 参考文献22件 被引用文献2件

  • 液体ヘリウムの沸騰二相流に関する二次元数値解析

    石本 淳 , 尾池 守 , 上條 謙二郎

    … First, the governing equations of boiling two-phase flow of liquid helium based on the unsteady drift flux model are presented and several flow characteristics are numerically calculated taking into account the effect of superfluidity term. …

    日本機械学会論文集. B編 00065(00630), 482-489, 1999-02-25

    参考文献20件 被引用文献1件

  • 液体ヘリウムの沸騰二相流に関する二次元数値解析

    石本 淳 , 尾池 守 , 上條 謙二郎

    … First, the governing equations of boiling two-phase flow of liquid helium based on the unsteady drift flux model are presented and several flow characteristics are numerically calculated taking into account the effect of superfluidity term. …

    日本機械学会論文集 B編 65(630), 482-489, 1999

    J-STAGE DOI

  • Reaction of Paramecium to Temperature Gradients and the Telegraph Equation

    Sato Tadashi , Fujimura Jun

    … The telegraph equation with a drift term to determine an asymmetric random walk is applied to the behavior of paramecia to accumulate at their optimal temperature in the presence of temperature gradient. …

    J Phys Soc Jpn 61(1), 385-390, 1992-01-15

    日本物理学会 日本物理学会 被引用文献4件

  • Reaction of Paramecium to Temperature Gradients and the Telegraph Equation

    Sato Tadashi , Fujimura Jun

    … The telegraph equation with a drift term to determine an asymmetric random walk is applied to the behavior of paramecia to accumulate at their optimal temperature in the presence of temperature gradient. …

    Journal of the Physical Society of Japan 61(1), 385-390, 1992

    J-STAGE DOI

  • Rates of change of the Earth's magnetic field measured by recent analyses.

    HARRISON C. G. A. , HUANG Qilin

    … Although westward drift of the field does not necessarily tell us about motions of the core fluid at the core mantle boundary, it is probably true that these motions depend on the same parameters as those used to determine the westward drift. …

    Journal of geomagnetism and geoelectricity 42(8), 897-928, 1990

    J-STAGE DOI

  • 傾斜電界型イオンリフレクタによるTOF質量分析計の分解能の改善

    吉田 佳一 [他] , 田中 耕一 , 井戸 豊 , 秋田 智史 , 吉田 多見男

    … A new gradient electric field type ion reflector for a time-of-flight mass spectrometer has been developed in order to improve mass spectral resolution by time focusing. … One term proportional to penetrating depth of ions into the reflector and a constant term. … In the TOF mass spectrometer consisting of a free ion drift region and the ion reflector, the motion of the same m/z ions is quasi-single oscillation of the same period. …

    Journal of the Mass Spectrometry Society of Japan 36(2), 49-58, 1988

    J-STAGE DOI

  • On The Solitary Vortex Solutions of Nonlinear Drift Wave Equations

    Horihata Satoshi , Sato Masatomo

    … The Hasegawa-Mima equation for a quasi-two-dimensional electrostatic drift wave is generalized to include arbitrary distributions of the equilibrium electrostatic potential and the density and temperature of plasma. … The relation between the drift wave equation and the barotropic equation for Rossby waves is discussed, and, in particular, a remark is made on Petviashvili's equation which has an additional nonlinear term proportional to the temperature gradient. …

    J Phys Soc Jpn 56(8), 2611-2614, 1987-08-15

    日本物理学会 日本物理学会 被引用文献1件

  • Transport Driven by G Modes and Resistive Drift Waves Based on Scale Invariance

    Yagi Masatoshi , Wakatani Masahiro , Hasegawa Akira

    … Scale transformation introduced by Connor and Taylor is applied to the model equations for the resistive interchange mode (g mode) and the resistive drift wave in a high shear helical system. … The electron pressure gradient term in Ohm's law is essential in deriving the present results. …

    J Phys Soc Jpn 56(3), 973-981, 1987-03-15

    日本物理学会 日本物理学会

  • On The Solitary Vortex Solutions of Nonlinear Drift Wave Equations

    Horihata Satoshi , Sato Masatomo

    … The Hasegawa-Mima equation for a quasi-two-dimensional electrostatic drift wave is generalized to include arbitrary distributions of the equilibrium electrostatic potential and the density and temperature of plasma. … The relation between the drift wave equation and the barotropic equation for Rossby waves is discussed, and, in particular, a remark is made on Petviashvili's equation which has an additional nonlinear term proportional to the temperature gradient. …

    Journal of the Physical Society of Japan 56(8), 2611-2614, 1987

    J-STAGE DOI

  • Transport Driven by G Modes and Resistive Drift Waves Based on Scale Invariance

    Yagi Masatoshi , Wakatani Masahiro , Hasegawa Akira

    … Scale transformation introduced by Connor and Taylor is applied to the model equations for the resistive interchange mode (g mode) and the resistive drift wave in a high shear helical system. … The electron pressure gradient term in Ohm's law is essential in deriving the present results. … When the resistive drift waves are dominant, the predicted transport is κ<SUP>2</SUP>⁄<I>s</I><SUP>2</SUP> …

    Journal of the Physical Society of Japan 56(3), 973-981, 1987

    J-STAGE DOI

  • A Model Equation for a Nonlinear Collisional Drift Wave in a Magnetic Field with Shear

    Taniuti Tosiya

    … A model equation to study nonlinear behaviours of a collisional drift-wave localized about a mode-rational surface in a slab model is derived on the basis of the magnetohydrodynamics for a low-$\beta$ plasma of cold ions and isothermal electrons. …

    J Phys Soc Jpn 55(12), 4253-4258, 1986-12-15

    日本物理学会 日本物理学会

  • A Model Equation for a Nonlinear Collisional Drift Wave in a Magnetic Field with Shear

    Taniuti Tosiya

    … A model equation to study nonlinear behaviours of a collisional drift-wave localized about a mode-rational surface in a slab model is derived on the basis of the magnetohydrodynamics for a low-β plasma of cold ions and isothermal electrons. …

    Journal of the Physical Society of Japan 55(12), 4253-4258, 1986

    J-STAGE DOI

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