Search Results - "Duk-In Choi"
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A political economic analysis of commodified English in South Korean neoliberal labor markets
Published in Language sciences (Oxford) (01-11-2018)“…This study examines two contradictions inherent in using English tests for employment by Marx’s political economy. English proficiency is quantified by the…”
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Patterns of Plasma Bullet in Plasma Jets
Published in IEEE transactions on plasma science (01-06-2015)“…Composite charges applied to plasma striations were investigated through this paper. Bullets in plasma jets stemming from effective electrons made up of a…”
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Calculation of reactor impedance for helicon discharge
Published in IEEE transactions on plasma science (01-06-2001)“…We solve the Maxwell-Boltzmann equations and calculate reactor impedance for helicon device with the Nagoya type III antenna using a finite, width modeling of…”
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Plasma Position Measurements in a Tokamak with an Iron Core Transformer
Published in Japanese Journal of Applied Physics (01-07-2000)“…Two simple methods of estimating the plasma position in a large-aspect-ratio, low-β p tokamak with an iron core transformer are demonstrated: a magnetic…”
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Historical development of English learning motivation research: Cases of Korea and its neighboring countries in East Asia By Tae‐YoungKim, Springer. 2021, pp. xii + 318, 179.99$ (Hardcover). ISBN: 9789811625121
Published in International journal of applied linguistics (23-11-2023)Get full text
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One-dimensional fluid model of ECR discharge with inhomogeneity effects of external magnetic field
Published in IEEE transactions on plasma science (01-08-1995)“…A one-dimensional fluid model of the microwave electron cyclotron resonance (ECR) discharge, which includes the inhomogeneity effects of the external magnetic…”
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One-dimensional hybrid modeling and simulation of electron cyclotron resonance discharge
Published in IEEE transactions on plasma science (01-08-1995)“…The physical phenomena of the ECR-microwave discharge are numerically studied by a one-dimensional hybrid model of the fluid electrons and particle ions. The…”
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A New Unconditionally Stable Algorithm for Steady-State Fluid Simulation of High Density Plasma Discharge
Published in Journal of computational physics (01-07-2001)“…A new unconditionally stable algorithm for steady-state fluid simulation of high density plasma discharge is suggested. The physical origin of restriction on…”
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Nonlinear analysis using a fluid model for the saturation characteristics in the Cherenkov maser operation
Published in Optics communications (15-11-1995)“…The saturation state composed of the wave and relativistic electron beam in a dielectric-lined cylindrical waveguide is analyzed using the nonlinear…”
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Generalized Lorentz Gauge and Boundary Conditions in Partially Dielectric-Loaded Cylindrical Waveguide (Short Paper)
Published in IEEE transactions on microwave theory and techniques (01-11-1987)“…A generalized Lorentz gauge condition for the set of Vlasov-Maxwell equations is introduced. The condition is applied to the free-electron-laser instability of…”
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Bunching phase evolution of short-pulse FEL oscillator system
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-05-2000)“…We studied numerically the short-pulse FEL oscillator system using properly defined bunching phase θ B and Ψ B . In stable operation, we have found that the…”
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Feedback control of cavity detuning in short-pulse free-electron lasers
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (1999)“…Feedback control of cavity detuning length in a short-pulse free-electron laser oscillator system is suggested and numerical simulation results are presented…”
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Ion-acoustic heating from renormalized turbulence theory
Published in Physical review. A, General physics (01-07-1976)Get full text
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Historical development of English learning motivation research: Cases of Korea and its neighboring countries in East Asia By Tae‐Young Kim, Springer. 2021, pp. xii + 318, 179.99$ (Hardcover). ISBN: 9789811625121
Published in International Journal of Applied Linguistics (01-02-2024)Get full text
Book Review -
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Numerical Analysis of MPD Arcs for Plasma Acceleration
Published in IEEE transactions on plasma science (01-10-1987)“…The characteristics of the arc region of the plasma thruster are investigated from the numerical solutions of coupled MHD equations. In this model the flow is…”
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The magnetoresonance operation of microwiggler using a piezoelectric with a strong magnetic guide field
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-06-1996)“…We proposed that a new type of the electrostatic microwiggler with a wiggler period (0.1 mm ≤ l w ≤ 1 cm) and the wiggler field strength ( E w ≤ 500 kV/m) can…”
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Nonlinear saturation characteristics of a dielectric Cherenkov maser
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-06-1996)“…The nonlinear saturation state in a dielectric Cherenkov maser (DCM) with the TM mode and the intense relativistic electron beam is analysed from the nonlinear…”
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