Search Results - "Lee, Yongjoong"
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1
Characterization of a polyphenyl ether oil irradiated at high doses in a TRIGA Mark II nuclear reactor
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (15-06-2021)“…Samples of a commercially available polyphenyl ether (PPE) oil are irradiated in the mixed neutron and gamma radiation field of the Pavia TRIGA Mark II…”
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2
Annealing effect on the microstructure of tungsten irradiated in SINQ target
Published in Journal of nuclear materials (01-08-2018)“…In this work, the microstructure of pure tungsten irradiated in a target of the Swiss spallation neutron source is studied. The tested tungsten specimens were…”
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3
A Comparative Study of Medium-Voltage Power Converter Topologies for Plasma Torch Under Dynamic Operating Conditions
Published in IEEE transactions on industrial electronics (1982) (01-06-2009)“…This paper compares several medium-voltage power conversion systems for plasma torch application. The thermal plasma torch rated for 3 MW, 2 kA with the…”
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4
Experimental study of consistency degradation of different greases in mixed neutron and gamma radiation
Published in Heliyon (01-09-2019)“…Many of the moving components in accelerator and target environments require lubrication. Lubricants in such environments are exposed to high fluxes of…”
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5
A Power Conversion System for AC Furnace With Enhanced Arc Stability
Published in IEEE transactions on industry applications (01-11-2010)“…This paper proposes a criterion for ac arc stability and an optimal converter topology for a nonferrous metal ac arc furnace. The ac arc furnace rated for 36…”
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6
Arc stability control of high power thyristor rectifier system in DC arc furnace
Published in 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC) (01-03-2013)“…Fundamental features of the arc stability in DC arc furnace of 720V/100kA/72MW have been investigated. Cassie-Mayr arc model has been employed and applied for…”
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Conference Proceeding -
7
Thermal diffusivity of tungsten irradiated by protons in spallation environment up to 26.5 dpa
Published in Journal of nuclear materials (01-12-2024)“…•Thermal diffusivity of tungsten irradiated in a spallation target up to 26.5 dpa was studied.•Irradiated tungsten showed a drastic reduction of the thermal…”
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8
Thermal diffusivity of tungsten irradiated with protons up to 5.8 dpa
Published in Journal of nuclear materials (01-10-2018)“…Thermal properties of pure tungsten, irradiated in the Swiss neutron spallation source at the Paul Scherrer Institut, have been studied in the temperature…”
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9
Verification and validation studies of OpenFOAM for transonic compressible flow simulations inside high voltage circuit breaker diffusers
Published in Conference Record of the 2008 IEEE International Symposium on Electrical Insulation (01-06-2008)“…Accurate compressible flow simulations are known to improve the prediction quality of breakdown voltages in various test duties of high voltage circuit…”
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Conference Proceeding -
10
Mechanical properties of tungsten irradiated with high-energy protons and spallation neutrons
Published in Journal of nuclear materials (01-02-2019)“…In this work, 3-point bending tests and micro-hardness measurements were performed on pure tungsten irradiated with high-energy protons and spallation neutrons…”
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11
CFD Benchmark validation study on simulation based breakdown voltage prediction in capacitive switching of high voltage circuit breaker
Published in Conference Record of the 2008 IEEE International Symposium on Electrical Insulation (01-06-2008)“…A CFD benchmark validation study for predicting breakdown voltage in capacitive switching test duties in high voltage circuit breaker is presented. The solver…”
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Conference Proceeding -
12
Microstructure and tensile properties of tungsten at elevated temperatures
Published in Journal of nuclear materials (01-01-2016)“…In order to support the development of the 5 MW spallation target for the European Spallation Source, the effect of fabrication process on microstructure,…”
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13
Formation of oxide layers on tungsten at low oxygen partial pressures
Published in Journal of nuclear materials (01-08-2018)“…This work focuses on the oxidation of tungsten in inert gas atmospheres containing oxygen and moisture. It is particularly relevant for the European Spallation…”
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14
Fatigue properties of tungsten from two different processing routes
Published in Journal of nuclear materials (01-08-2018)“…Fatigue failure is a distinct possibility in spallation targets like tungsten, subjected to cyclic thermo-mechanical loading caused by beam trips and beam…”
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15
Arc Stability Control of a High-Power Thyristor Rectifier System in a DC Arc Furnace
Published in IEEE transactions on power electronics (01-12-2014)“…Fundamental features of the arc stability in a dc arc furnace of 720 V/100 kA/72 MW have been investigated. The Cassie-Mayr arc model has been employed and…”
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16
Control algorithm of high power rectifier system in DC arc furnace for improved arc stability
Published in 2013 IEEE Energy Conversion Congress and Exposition (01-09-2013)“…Fundamental features of the arc stability in DC arc furnace of 720V/100kA/72MW have been investigated. Cassie-Mayr arc model has been employed and applied for…”
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Conference Proceeding -
17
Optical clearing assisted confocal microscopy of ex vivo transgenic mouse skin
Published in Optics and laser technology (01-10-2015)“…We examined the optical clearing assisted confocal microscopy of the transgenic mouse skin. The pinna and dorsal skin were imaged with a confocal microscope…”
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18
A power conversion system for ac furnace with enhanced arc stability
Published in 2009 IEEE Energy Conversion Congress and Exposition (01-09-2009)“…This paper proposes a criterion for ac arc stability and an optimal converter topology for a non-ferrous metal ac arc furnace. The ac arc furnace rated for…”
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Conference Proceeding -
19
A study on medium voltage power conversion system for plasma torch
Published in 2008 IEEE Power Electronics Specialists Conference (01-06-2008)“…This paper investigates the medium voltage power conversion system for plasma torch application. The plasma torch rated for 3MW, 2kA and having the physical…”
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Conference Proceeding -
20
Arc stability criteria in AC arc furnace and optimal converter topologies
Published in APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition (01-02-2007)“…In this paper, the fundamental features of the arc stability in nonferrous metal AC arc furnace have been investigated, from the converter point of view. Due…”
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Conference Proceeding