All Stories

  1. Exergy and Thermoeconomic Analysis of Thermal Systems

    Article • Journal of Energy Engineering, March 2026, The Korean Society for Energy Engineering

    Professor Ho-Young Kwak

  2. Homogeneous nucleation of hydrogen gas bubble in aluminum melts

    Article • Journal of Mechanical Science and Technology, March 2026, Springer Science + Business Media

    Professor Ho-Young Kwak

  3. The Superheat Limit of Liquids–A Review and Discussion

    Article • ASME Journal of Heat and Mass Transfer, January 2026, ASME International

    Professor Ho-Young Kwak

  4. Energy, exergy and thermoeconomic analyses for a power-to-green methanol production plant

    Article • Energy Nexus, September 2025, Elsevier

    Professor Ho-Young Kwak

  5. Simultaneous production of pink and grey hydrogen using high-temperature (HT) gas-cooled nuclear reactors coupled with HT-electrolyzer and gas reforming unit

    Article • International Journal of Hydrogen Energy, February 2025, Elsevier

    Professor Ho-Young Kwak

  6. Energy, Exergetic, and Thermoeconomic Analyses of Hydrogen-Fueled 1-kW Proton-Exchange Membrane Fuel Cell

    Article • Entropy, June 2024, MDPI AG

    Professor Ho-Young Kwak

  7. Effect of air depletion in the preferential oxidation reactor and fuel depletion in a proton exchange membrane fuel cell system fueled by natural gas

    Article • Case Studies in Thermal Engineering, April 2024, Elsevier

    Professor Ho-Young Kwak

  8. Nucleation Process in Explosive Boiling Phenomena of Water on Micro-Platinum Wire

    Article • Entropy, December 2023, MDPI AG

    Professor Ho-Young Kwak

  9. Energy, Exergy and Thermoeconomic Analyses on Hydrogen Production Systems Using High-Temperature Gas-Cooled and Water-Cooled Nuclear Reactors

    Article • Energies, December 2023, MDPI AG

    Professor Ho-Young Kwak

  10. Integrative approach of thermoeconomics to obtain unit cost of products in power systems

    Article • International Journal of Exergy, January 2023, Inderscience Publishers

    Professor Ho-Young Kwak

  11. Exergy and Thermoeconomic Analyses of a Carnot Battery System Comprising an Air Heat Pump and Steam Turbine

    Article • Energies, November 2022, MDPI AG

    Professor Ho-Young Kwak

  12. Thermodynamic, Exergetic and Thermoeconomic Analyses of Double-Effect LiBr–Water Absorption Refrigeration Systems with a 5 kW High Temperature PEMFC as Heat Source for Data Center Applications

    Article • Energies, April 2022, MDPI AG

    Professor Ho-Young Kwak

  13. Thermoeconomic installation limit of PV/WT hybrid energy systems for Off-grid islands

    Article • International Journal of Green Energy, June 2017, Taylor & Francis

    Professor Ho-Young Kwak

  14. Characterization, Luminescence, and Defect Centers of a Ce3+-Doped Li2Si2O5 Phosphor Prepared by a Solution Combustion Reaction

    Article • Journal of Electronic Materials, April 2015, Springer Science + Business Media

    Professor Ho-Young Kwak

  15. Hydrodynamic approach to multibubble sonoluminescence

    Article • Ultrasonics Sonochemistry, July 2014, Elsevier

    Professor Ho-Young Kwak

  16. A cost-effective method for integration of new and renewable energy systems in public buildings in Korea

    Article • Energy and Buildings, May 2014, Elsevier

    Professor Ho-Young Kwak

  17. Bubble Formation on the Surface of Laser-Irradiated Nanosized Particles

    Article • Journal of Heat Transfer, April 2014, ASME International

    Professor Ho-Young Kwak

  18. Thermoeconomic analysis of ground-source heat pump systems

    Article • International Journal of Energy Research, March 2013, Wiley

    Professor Ho-Young Kwak

  19. A support strategy for the promotion of photovoltaic uses for residential houses in Korea

    Article • Energy Policy, February 2013, Elsevier

    Professor Ho-Young Kwak

  20. Fire-ball expansion and subsequent shock wave propagation from explosives detonation

    Article • International Journal of Thermal Sciences, September 2012, Elsevier

    Professor Ho-Young Kwak

  21. Optimal operation of a 1-kW PEMFC-based CHP system for residential applications

    Article • Applied Energy, July 2012, Elsevier

    Professor Ho-Young Kwak

  22. Mixed and autothermal reforming of methane with supported Ni catalysts with a core/shell structure

    Article • Fuel Processing Technology, January 2012, Elsevier

    Professor Ho-Young Kwak

  23. EPR and photoluminescence properties of Mn2+-activated zinc gallate phosphor prepared by urea combustion route and post heat treatment

    Article • Journal of Luminescence, August 2011, Elsevier

    Professor Ho-Young Kwak

  24. 해저에서 TNT 폭발에 의한 파이어볼의 팽창과 이에 따른 충격파 전파

    Article • Transactions of the Korean Society of Mechanical Engineers B, July 2011, The Korean Society of Mechanical Engineers

    Professor Ho-Young Kwak

  25. Catalytic test of supported Ni catalysts with core/shell structure for dry reforming of methane

    Article • Fuel Processing Technology, June 2011, Elsevier

    Professor Ho-Young Kwak

  26. Preparation of supported Ni catalysts on various metal oxides with core/shell structures and their tests for the steam reforming of methane

    Article • Chemical Engineering Journal, April 2011, Elsevier

    Professor Ho-Young Kwak

  27. Nonlinear Bubble Behavior due to Heat Transfer

    Article • January 2011, IntechOpen

    Professor Ho-Young Kwak

  28. Sensitivity analysis of component efficiencies on performance of a gas turbine cogeneration system

    Article • International Journal of Exergy, January 2011, Inderscience Publishers

    Professor Ho-Young Kwak

  29. Characterization, photoluminescence, thermally stimulated luminescence and electron spin resonance studies of Eu3+ doped LaAlO3 phosphor

    Article • Solid State Sciences, January 2011, Elsevier

    Professor Ho-Young Kwak

  30. Measurement of Pulse Width from a Bubble Cloud under Multibubble Sonoluminescence Conditions

    Article • Journal of the Physical Society of Japan, December 2010, Physical Society of Japan

    Professor Ho-Young Kwak

  31. Luminescence and defect centres in Tb3+ doped LaMgAl11O19 phosphors

    Article • Solid State Sciences, December 2010, Elsevier

    Professor Ho-Young Kwak

  32. Luminescence and EPR studies of Y2O3:Gd3+ phosphors prepared via solution combustion method

    Article • Journal of Materials Science, September 2010, Springer Science + Business Media

    Professor Ho-Young Kwak

  33. Luminescence and defect centres in MgSrAl10O17:Sm3+ phosphor

    Article • Journal of Non-Crystalline Solids, May 2010, Elsevier

    Professor Ho-Young Kwak

  34. Luminescence and EPR studies of Eu2+ doped BaAl12O19 blue light emitting phosphors

    Article • Journal of Luminescence, April 2010, Elsevier

    Professor Ho-Young Kwak

  35. Pulse Width Measurement of Sonoluminescing Air Bubbles in Various Solutions using a Time-Correlated Single Photon Counting Technique

    Article • Journal of Fluid Science and Technology, January 2010, Japan Society of Mechanical Engineers

    Professor Ho-Young Kwak

  36. Syntheses of Mn3O4 and LiMn2O4 nanoparticles by a simple sonochemical method

    Article • Materials Letters, October 2009, Elsevier

    Kang Min Ok, Professor Ho-Young Kwak

  37. Coating of TiO2 nanoparticles with PbS thin films and preparation of PbS nanoparticles using a one-pot sonochemical reaction under the multibubble sonoluminescence conditions

    Article • Thin Solid Films, October 2009, Elsevier

    Kang Min Ok, Professor Ho-Young Kwak

  38. Gaseous bubble nucleation under shear flow

    Article • International Journal of Heat and Mass Transfer, October 2009, Elsevier

    Professor Ho-Young Kwak

  39. Nonlinear behavior of micro bubbles under ultrasound due to heat transfer

    Article • Journal of Mechanical Science and Technology, September 2009, Springer Science + Business Media

    Professor Ho-Young Kwak

  40. Preparation of supported Ni catalysts with a core/shell structure and their catalytic tests of partial oxidation of methane

    Article • International Journal of Hydrogen Energy, May 2009, Elsevier

    Professor Ho-Young Kwak

  41. Pulse width measurements for sonoluminescing gas bubbles in various solutions

    Article • EPL (Europhysics Letters), April 2009, Institute of Physics Publishing

    Professor Ho-Young Kwak

  42. Characterization, EPR and photoluminescence studies of LiAl5O8:Cr phosphors

    Article • Solid State Sciences, April 2009, Elsevier

    Professor Ho-Young Kwak

  43. Gaseous Bubble Nucleation Under Shear Flow

    Article • January 2009, ASME International

    Professor Ho-Young Kwak

  44. Absolute Metastable Limit of Liquids and Gas-Liquid Solutions

    Article • January 2009, ASME International

    Professor Ho-Young Kwak

  45. Validation of molecular dynamics simulation for a collapsing process of sonoluminescing gas bubbles

    Article • Molecular Physics, April 2008, Taylor & Francis

    Professor Ho-Young Kwak

  46. Measurement of Pulse Width of Sonoluminescing Gas Bubble in Sulfuric Acid Solution

    Article • Journal of the Physical Society of Japan, March 2008, Physical Society of Japan

    Professor Ho-Young Kwak

  47. Syntheses of ZnO and ZnO-coated TiO2 nanoparticles in various alcohol solutions at multibubble sonoluminescence (MBSL) condition

    Article • Chemical Engineering Journal, February 2008, Elsevier

    Professor Ho-Young Kwak

  48. Molecular Dynamics Simulation for a Sonoluminescing Micron Bubble With Mixed Boundary Conditions

    Article • January 2008, ASME International

    Professor Ho-Young Kwak

  49. Economic optimization of a cogeneration system for apartment houses in Korea

    Article • Energy and Buildings, January 2008, Elsevier

    Professor Ho-Young Kwak

  50. Syntheses of Specialty Nanomaterials at the Multibubble Sonoluminescence Condition

    Article • January 2008, ASME International

    Professor Ho-Young Kwak

  51. A capillary-pumped loop (CPL) with microcone-shaped capillary structure for cooling electronic devices

    Article • Journal of Micromechanics and Microengineering, December 2007, Institute of Physics Publishing

    Professor Ho-Young Kwak

  52. Fluid flow and heat transfer in microchannels with rectangular cross section

    Article • Heat and Mass Transfer, September 2007, Springer Science + Business Media

    Professor Ho-Young Kwak

  53. Temperature and pressure fields due to collapsing bubble under ultrasound

    Article • Chemical Engineering Journal, August 2007, Elsevier

    Professor Ho-Young Kwak

  54. Separation of Microparticles and Biological Cells Inside an Evaporating Droplet Using Dielectrophoresis

    Article • Analytical Chemistry, July 2007, American Chemical Society (ACS)

    Professor Ho-Young Kwak

  55. Predictions of bubble behavior in sulfuric acid solutions by a set of solutions of Navier–Stokes equations

    Article • Chemical Engineering Science, June 2007, Elsevier

    Professor Ho-Young Kwak

  56. Economic evaluation for adoption of cogeneration system

    Article • Applied Energy, March 2007, Elsevier

    Professor Ho-Young Kwak

  57. Molecular Dynamics Simulation of Collapsing Phase for a Sonoluminescing Gas Bubble in Sulfuric Acid Solutions: A Comparative Study with Theoretical Results

    Article • Journal of the Physical Society of Japan, February 2007, Physical Society of Japan

    Professor Ho-Young Kwak

  58. Preparation of Li4Ti5O12 nanoparticles by a simple sonochemical method

    Article • Dalton Transactions, January 2007, Royal Society of Chemistry

    Professor Ho-Young Kwak

  59. Nonlinear Behavior of Micro Bubbles Under Ultrasound Due to Heat Transfer

    Article • January 2007, ASME International

    Professor Ho-Young Kwak

  60. Economic Optimization of a Cogeneration System for Apartments in Korea

    Article • January 2007, ASME International

    Professor Ho-Young Kwak

  61. Separation of Micro Particles and Biological Cells Inside an Evaporating Droplet Using Dielectrophoresis

    Article • January 2007, ASME International

    Professor Ho-Young Kwak

  62. Characteristics of Sonoluminescing Bubbles in Aqueous Solutions of Sulfuric Acid

    Article • Journal of the Physical Society of Japan, November 2006, Physical Society of Japan

    Professor Ho-Young Kwak

  63. Effect of surface condition on boiling heat transfer from silicon chip with submicron-scale roughness

    Article • International Journal of Heat and Mass Transfer, November 2006, Elsevier

    Professor Ho-Young Kwak

  64. Fabrication and testing of bubble powered micropumps using embedded microheater

    Article • Microfluidics and Nanofluidics, September 2006, Springer Science + Business Media

    Professor Ho-Young Kwak

  65. Bubble Nucleation and Behavior on Micro Square Heaters

    Article • Nanoscale and Microscale Thermophysical Engineering, July 2006, Taylor & Francis

    Professor Ho-Young Kwak

  66. Electrohydrodynamic (EHD) enhancement of boiling heat transfer of R 113+WT4% ethanol

    Article • Journal of Mechanical Science and Technology, May 2006, Springer Science + Business Media

    Professor Ho-Young Kwak

  67. Relaxation Behavior of Microbubbles in Ultrasonic Field

    Article • Japanese Journal of Applied Physics, January 2006, Japan Society of Applied Physics

    Professor Ho-Young Kwak

  68. Forced Convective Heat Transfer of Nanofluids in Microchannels

    Article • January 2006, ASME International

    Professor Ho-Young Kwak

  69. Lagging motion of forced nonlinear oscillators

    Article • Journal of Sound and Vibration, October 2005, Elsevier

    Professor Ho-Young Kwak

  70. Degradation of methylene blue under multibubble sonoluminescence condition

    Article • Journal of Photochemistry and Photobiology A Chemistry, September 2005, Elsevier

    Professor Ho-Young Kwak

  71. Explosive boiling of liquid droplets at their superheat limits

    Article • Chemical Engineering Science, April 2005, Elsevier

    Professor Ho-Young Kwak

  72. Optimal Planning and Economic Evaluation of Small Scale Cogeneration System

    Article • January 2005, ASME International

    Professor Ho-Young Kwak

  73. The Mesoscopic Simulation on the Structures of the Surfactant Solution Using Dissipative Particle Dynamics

    Article • January 2005, ASME International

    Professor Ho-Young Kwak

  74. Novel Fabrication and Testing of a Bubble-Powered Micropump

    Article • January 2005, ASME International

    Professor Ho-Young Kwak

  75. Proteinaceous bubble and nanoparticle flows in microchannels

    Article • Microfluidics and Nanofluidics, December 2004, Springer Science + Business Media

    Professor Ho-Young Kwak

  76. Bubble nucleation and growth in polymer solutions

    Article • Polymer Engineering & Science, October 2004, Wiley

    Professor Ho-Young Kwak

  77. Gas–vapor bubble nucleation—a unified approach

    Article • Journal of Colloid and Interface Science, October 2004, Elsevier

    Professor Ho-Young Kwak

  78. Exergetic and thermoeconomic analysis of a 200-kW phosphoric acid fuel cell plant

    Article • Fuel, October 2004, Elsevier

    Professor Ho-Young Kwak

  79. Bubble Evolution and Radiation Mechanism for Laser-Induced Collapsing Bubble in Water

    Article • Japanese Journal of Applied Physics, September 2004, Japan Society of Applied Physics

    Professor Ho-Young Kwak

  80. A Model of Laser-Induced Cavitation

    Article • Japanese Journal of Applied Physics, February 2004, Japan Society of Applied Physics

    Professor Ho-Young Kwak

  81. Growth of Microcellular Foams in Viscoelastic Mediums

    Article • January 2004, ASME International

    Professor Ho-Young Kwak

  82. Rayleigh-Taylor Instability Mechanism on Sonoluminescing Bubble

    Article • January 2004, ASME International

    Professor Ho-Young Kwak

  83. Cost structure of CGAM cogeneration system

    Article • International Journal of Energy Research, January 2004, Wiley

    Professor Ho-Young Kwak

  84. Proteinaceous Bubbles and Nano Particle Flows in Microchannel

    Article • January 2004, ASME International

    Professor Ho-Young Kwak

  85. Bubble nucleation on micro line heaters under steady or finite pulse of voltage input

    Article • International Journal of Heat and Mass Transfer, September 2003, Elsevier

    Professor Ho-Young Kwak

  86. 액체의 과열한계 측정과 과열한계에 달한 액적의 거동

    Article • Transactions of the Korean Society of Mechanical Engineers B, September 2003, The Korean Society of Mechanical Engineers

    Professor Ho-Young Kwak

  87. Possibility of Upscaling for Single Bubble Sonoluminescence at a Low Driving Frequency

    Article • Journal of the Physical Society of Japan, March 2003, Physical Society of Japan

    Professor Ho-Young Kwak

  88. Hydrodynamics and Thermodynamics of Newtonian Stars

    Article • Geophysical & Astrophysical Fluid Dynamics, February 2003, Taylor & Francis

    Professor Ho-Young Kwak

  89. Lagging Motion of Forced Nonlinear Oscillators

    Article • January 2003, ASME International

    Professor Ho-Young Kwak

  90. Fluid Flow and Heat Transfer in Microchannels With Rectangular Cross Section

    Article • January 2003, ASME International

    Professor Ho-Young Kwak

  91. Shock and Thermal Waves Emanating from a Sonoluminescing Gas Bubble

    Article • January 2003, Springer Science + Business Media

    Professor Ho-Young Kwak

  92. Explosive Boiling of Liquid Droplets at Their Superheat Limits

    Article • January 2003, ASME International

    Professor Ho-Young Kwak

  93. Bubble Nucleation on Micro Line Heaters

    Article • Journal of Heat Transfer, January 2003, ASME International

    Professor Ho-Young Kwak

  94. Quantum Nucleation of Bubbles in Liquid Heliums

    Article • Journal of the Physical Society of Japan, September 2002, Physical Society of Japan

    Professor Ho-Young Kwak

  95. Cost Structure of CGAM Cogeneration System

    Article • January 2002, ASME International

    Professor Ho-Young Kwak

  96. Bubble Nucleation and Growth on Surface of Rapidly Heated Micro Heaters

    Article • January 2002, ASME International

    Professor Ho-Young Kwak

  97. Bubble Dynamics for Single Bubble Sonoluminescence

    Article • Journal of the Physical Society of Japan, October 2001, Physical Society of Japan

    Professor Ho-Young Kwak

  98. Experimental Study on Closed-Loop Two-Phase Thermosyphon Devices for Cooling MCMs

    Article • Heat Transfer Engineering, March 2001, Taylor & Francis

    Professor Ho-Young Kwak

  99. Exergoeconomic analysis of gas turbine cogeneration systems

    Article • Exergy An International Journal, January 2001, Elsevier

    Professor Ho-Young Kwak

  100. Radius Measurement of a Sonoluminescing Gas Bubble

    Article • Japanese Journal of Applied Physics, March 2000, Japan Society of Applied Physics

    Professor Ho-Young Kwak

  101. GRAVITATIONAL COLLAPSE OF NEWTONIAN STARS

    Article • International Journal of Modern Physics D, February 2000, World Scientific Pub Co Pte Lt

    Professor Ho-Young Kwak

  102. Radiation Mechanism for a Single Bubble Sonoluminescence

    Article • Journal of the Physical Society of Japan, January 2000, Physical Society of Japan

    Professor Ho-Young Kwak

  103. Stability and Selective Bifurcation for a Gas Bubble Oscillating under Ultrasound

    Article • Journal of the Physical Society of Japan, April 1999, Physical Society of Japan

    Professor Ho-Young Kwak

  104. Pressure Wave Propagation inside a Sonoluminescing Gas Bubble

    Article • Journal of the Physical Society of Japan, March 1999, Physical Society of Japan

    Professor Ho-Young Kwak

  105. Transient Characteristics of a Two-Phase Thermosyphon Loop for Multichip Module

    Article • ETRI Journal, September 1998, Electronics and Telecommunications Research Institute (ETRI)

    Professor Ho-Young Kwak

  106. Exergoeconomic analysis of thermal systems

    Article • Energy, May 1998, Elsevier

    Professor Ho-Young Kwak

  107. Thermal wave from a sonoluminescing gas bubble

    Article • The Journal of the Acoustical Society of America, May 1998, Acoustical Society of America (ASA)

    Professor Ho-Young Kwak

  108. A Model of Homogeneous Bubble Nucleation of CO Bubbles in Fe–C–O Melts

    Article • Journal of Colloid and Interface Science, February 1998, Elsevier

    Professor Ho-Young Kwak

  109. Homogeneous nucleation and macroscopic growth of gas bubble in organic solutions

    Article • International Journal of Heat and Mass Transfer, February 1998, Elsevier

    Professor Ho-Young Kwak

  110. Physical Processes for Single Bubble Sonoluminescence

    Article • Journal of the Physical Society of Japan, October 1997, Physical Society of Japan

    Professor Ho-Young Kwak

  111. Shock Pulse from a Sonoluminescing Gas Bubble

    Article • Journal of the Physical Society of Japan, September 1997, Physical Society of Japan

    Professor Ho-Young Kwak

  112. Hydrodynamic Solutions for a Sonoluminescing Gas Bubble

    Article • Physical Review Letters, November 1996, American Physical Society (APS)

    Professor Ho-Young Kwak

  113. Hydrodynamic solutions for a sonoluminescing gas bubble

    Article • The Journal of the Acoustical Society of America, October 1996, Acoustical Society of America (ASA)

    Professor Ho-Young Kwak

  114. Exergy Analysis for a Gas Turbine Cogeneration System

    Article • Journal of Engineering for Gas Turbines and Power, January 1996, ASME International

    Professor Ho-Young Kwak

  115. An Aspect of Sonoluminescence from Hydrodynamic Theory

    Article • Journal of the Physical Society of Japan, June 1995, Physical Society of Japan

    Professor Ho-Young Kwak

  116. Bubble dynamics on the evolving bubble formed from the droplet at the superheat limit

    Article • International Journal of Heat and Mass Transfer, June 1995, Elsevier

    Professor Ho-Young Kwak

  117. A model for nonlinear oscillations of a gas bubble in liquids.

    Article • The Journal of the Acoustical Society of America, October 1991, Acoustical Society of America (ASA)

    Professor Ho-Young Kwak

  118. Homogeneous Bubble Nucleation Predicted by a Molecular Interaction Model

    Article • Journal of Heat Transfer, January 1991, ASME International

    Professor Ho-Young Kwak

  119. Effect of ambient pressure on the pressure Wave from the rapidly expanding bubble

    Article • The Journal of the Acoustical Society of America, May 1987, Acoustical Society of America (ASA)

    Professor Ho-Young Kwak

  120. Tensile strength of simple liquids predicted by a model of molecular interactions

    Article • Journal of Physics D Applied Physics, April 1985, Institute of Physics Publishing

    Professor Ho-Young Kwak

  121. Sound radiation from the evaporating droplet and the growing and collapsing bubble formed from the fully evaporated droplet

    Article • The Journal of the Acoustical Society of America, October 1984, Acoustical Society of America (ASA)

    Professor Ho-Young Kwak

  122. Gas bubble formation in nonequilibrium water–gas solutions

    Article • The Journal of Chemical Physics, May 1983, American Institute of Physics

    Professor Ho-Young Kwak