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Chang Kyoung Choi
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Journal Articles

Surface Plasmon Resonance Imaging: A Technique to Reveal the Dropwise Condensation Mechanism

Shahab Bayani Ahangar, Jeffrey S. Allen, Seong Hyuk Lee, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. March 2020, 142(3): 030903.
Paper No: HT-20-1045
https://doi.org/10.1115/1.4046136
Published Online: February 5, 2020
View Article titled, Surface Plasmon Resonance Imaging: A Technique to Reveal the Dropwise Condensation Mechanism
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Topics: Condensation, Imaging, Surface plasmon resonance, Drops, Instrumentation, Resolution (Optics), Thin films, Vapors, Bridges (Structures), Composite materials
Journal Articles

A Very Low-Cost, Labor-Efficient, and Simple Method to Block Scattered Ultraviolet Light in PDMS Microfluidic Devices by Inserting Aluminum Foil Strips

Shuo Wang, Peter Shankles, Scott Retterer, Yong Tae Kang, Chang Kyoung Choi
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Technical Briefs
J. Thermal Sci. Eng. Appl. February 2019, 11(1): 014501.
Paper No: TSEA-18-1288
https://doi.org/10.1115/1.4041436
Published Online: October 15, 2018
View Article titled, A Very Low-Cost, Labor-Efficient, and Simple Method to Block Scattered Ultraviolet Light in PDMS Microfluidic Devices by Inserting Aluminum Foil Strips
Open the PDF for A Very Low-Cost, Labor-Efficient, and Simple Method to Block Scattered Ultraviolet Light in PDMS Microfluidic Devices by Inserting Aluminum Foil Strips in another window
Topics: Aluminum foil, Integrated circuits, Microfluidics, Plasma desorption mass spectrometry, Strips, Ultraviolet radiation, Microchannels
Journal Articles

Neutron attenuation analysis of cryogenic propellants

Kishan Bellur, Daniel Hussey, David Jacobson, Jacob Lamana, Ezequiel Medici, James Hermanson, Dr. Jeffrey S. Allen, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. March 2018, 140(3): 030904.
Paper No: HT-17-1714
https://doi.org/10.1115/1.4039169
Published Online: February 16, 2018
View Article titled, Neutron attenuation analysis of cryogenic propellants
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Topics: Neutrons, Propellants, Imaging, Condensation, Density, Methane, Aluminum, Evaporation, Lubrication theory, Resolution (Optics)
Journal Articles

Electron Mobility across Grain Boundaries in Graphene Synthesized using Chemical Vapor Deposition Process

Fei Long, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2017, 139(8): 080901.
Paper No: HT-17-1156
https://doi.org/10.1115/1.4036875
Published Online: June 5, 2017
View Article titled, Electron Mobility across Grain Boundaries in Graphene Synthesized using Chemical Vapor Deposition Process
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Topics: Chemical vapor deposition, Electron mobility, Grain boundaries, Graphene, Potential barrier, Atomic force microscopy, Dislocations, Density, Electric potential, Electrical conductivity
Journal Articles

Atomic Force Microscopy (AFM) as a Powerful Tool to Study Temperature-Dependent Polymer Film Formation

Fei Long, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. February 2017, 139(2): 020904.
Paper No: HT-16-1716
https://doi.org/10.1115/1.4035574
Published Online: January 6, 2017
View Article titled, Atomic Force Microscopy (AFM) as a Powerful Tool to Study Temperature-Dependent Polymer Film Formation
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Topics: Atomic force microscopy, Polymer films, Temperature, Phase transition temperature, Self-assembly, Water, Cantilevers, Evaporation, Nanostructures , Nanotechnology
Journal Articles

High Speed SPR Visualization of Frost Propagation Inside a Subcooled Water Droplet

Chan Ho Jeong, Seong Hyuk Lee, Dong Hwan Shin, Vinaykumar Konduru, Jeffrey S. Allen, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. February 2017, 139(2): 020905.
Paper No: HT-16-1717
https://doi.org/10.1115/1.4035575
Published Online: January 6, 2017
View Article titled, High Speed SPR Visualization of Frost Propagation Inside a Subcooled Water Droplet
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Topics: Drops, Subcooling, Visualization, Water, Condensed matter, Temperature, Glass, Ice, Prisms (Optics), Delays
Journal Articles

Examining Liquid Hydrogen Wettability Using Neutron Imaging

Vinaykumar Konduru, Kishan Bellur, Ezequiel F. Médici, Jeffrey S. Allen, Chang Kyoung Choi, Daniel S. Hussey, David Jacobson, Juscelino B. Leão, John McQuillen, James C. Hermanson
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2016, 138(8): 080901.
Paper No: HT-16-1209
https://doi.org/10.1115/1.4033822
Published Online: July 8, 2016
View Article titled, Examining Liquid Hydrogen Wettability Using Neutron Imaging
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Topics: Hydrogen, Imaging, Neutrons, Aluminum, Propellants, Vapors, Condensation, Cryogenics, Evaporation, National Institute of Standards and Technology
Journal Articles

High-Speed Surface Plasmon Resonance (SPR) Reflectance Imaging of Drop Coalescence during Condensation and Evaporation

Vinaykumar Konduru, Dong Hwan Shin, Jeffrey S. Allen, Chang Kyoung Choi, Seong Hyuk Lee, Young-Ki Choi, Sosan Cheon, Kenneth D. Kihm
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2016, 138(8): 080903.
Paper No: HT-16-1205
https://doi.org/10.1115/1.4033819
Published Online: July 8, 2016
View Article titled, High-Speed Surface Plasmon Resonance (SPR) Reflectance Imaging of Drop Coalescence during Condensation and Evaporation
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Topics: Condensation, Evaporation, Imaging, Reflectance, Surface plasmon resonance, Water, Microscopy, Refractive index, Resonance, Thin films
Proceedings Papers

Wettability Effect on Droplet Growth Behaviors During Dropwise Condensation

Jae Bin Lee, Seong Hyuk Lee, Chang Kyoung Choi, Jungho Lee
Proc. ASME. IMECE2015, Volume 8B: Heat Transfer and Thermal Engineering, V08BT10A053, November 13–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2015-52930
https://doi.org/10.1115/IMECE2015-52930
View Paper titled, Wettability Effect on Droplet Growth Behaviors During Dropwise Condensation
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Topics: Condensation, Drops, Heat transfer, Heat transfer coefficients, Lenses (Optics), Self-assembly, Surface energy, Transients (Dynamics)
Journal Articles

Contact Angle Measurement of Liquid Hydrogen (LH 2 ) in Stainless Steel and Aluminum Cells

Kishan Bellur, Vinaykumar Konduru, Manan Kulshrestha, Daanish Tyrewala, Ezequiel Medici, Jeffrey S. Allen, Chang Kyoung Choi, Daniel S. Hussey, David C. Jacobson, Juscelino B. Leão, John McQuillen, James Hermanson, Arun Tamilarasan
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. February 2016, 138(2): 020904.
Paper No: HT-15-1701
https://doi.org/10.1115/1.4032232
Published Online: January 18, 2016
View Article titled, Contact Angle Measurement of Liquid Hydrogen (LH 2 ) in Stainless Steel and Aluminum Cells
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Topics: Aluminum, Boiling, Computational fluid dynamics, Condensation, Curve fitting, Edge detection, Engineering simulation, Evaporation, Finite element analysis, Hydrogen
Journal Articles

Frosting Characteristics on Hydrophilic and Superhydrophobic Copper Surfaces

Chan Ho Jeong, Jae Bin Lee, Seong Hyuk Lee, Jungho Lee, Seung Mun You, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. February 2016, 138(2): 020913.
Paper No: HT-15-1728
https://doi.org/10.1115/1.4032257
Published Online: January 18, 2016
View Article titled, Frosting Characteristics on Hydrophilic and Superhydrophobic Copper Surfaces
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Topics: Copper, Temperature, Heat transfer, Complementary metal oxide semiconductors, Crystals, Film condensation, Porous materials, Resistance thermometers, Sensors, Surface finishing
Journal Articles

Visualization in the Contact Line Region of an Evaporating Nanofluid Drop

Dong Hwan Shin, Jeffrey S Allen, Chang Kyoung Choi, Seong Hyuk Lee
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2014, 136(8): 080913.
Paper No: HT-14-1211
https://doi.org/10.1115/1.4027531
Published Online: August 1, 2014
View Article titled, Visualization in the Contact Line Region of an Evaporating Nanofluid Drop
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Topics: Evaporation, Heat, Mass transfer, Nanofluids, Visualization
Journal Articles

Dependency of Condensation Forms on Wettability

Jae Bin Lee, Jin Woon Lee, Seong Hyuk Lee, Yong Tae Kang, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2014, 136(8): 080911.
Paper No: HT-14-1209
https://doi.org/10.1115/1.4027529
Published Online: August 1, 2014
View Article titled, Dependency of Condensation Forms on Wettability
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Topics: Condensation, Heat, Mass transfer
Journal Articles

Detection & Collection of Bacteria in an Evaporating Sessile Droplet

Jung-Yeul Jung, Yong Tae Kang, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2014, 136(8): 080902.
Paper No: HT-14-1200
https://doi.org/10.1115/1.4027517
Published Online: August 1, 2014
View Article titled, Detection & Collection of Bacteria in an Evaporating Sessile Droplet
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Topics: Bacteria, Drops, Evaporation, Heat, Mass transfer
Journal Articles

Dynamics of a non-Newtonian Droplet Impact on a Micro-Textured Surface

Joo Hyun Moon, Dong Hwan Shin, Seong Hyuk Lee, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2012, 134(8): 080905.
https://doi.org/10.1115/1.4006719
Published Online: June 27, 2012
View Article titled, Dynamics of a non-Newtonian Droplet Impact on a Micro-Textured Surface
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Topics: Drops, Dynamics (Mechanics)
Journal Articles

Biological Temperature Sensing of Focal Contacts

Jen-Yung Chang, Brian Plunger, Jong-Min Kim, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2011, 133(8): 080907.
https://doi.org/10.1115/1.4003894
Published Online: April 28, 2011
View Article titled, Biological Temperature Sensing of Focal Contacts
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Topics: Adhesion, Biomechanics, Biomedical measurement, Biophysics, Cancer, Lung, Optical microscopy, Refractive index, Temperature
Journal Articles

Dynamic Spreading of a Droplet Impinging on Micro-Textured Surfaces

Jae Bong Lee, Seong Hyuk Lee, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2011, 133(8): 080905.
https://doi.org/10.1115/1.4003892
Published Online: April 27, 2011
View Article titled, Dynamic Spreading of a Droplet Impinging on Micro-Textured Surfaces
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Topics: Aluminum, Density, Drops, Flow visualization, Hydrophobicity, Microfluidics, Milling machines, Surface energy, Surface roughness, Surface texture
Journal Articles

Evaporation Characteristics of Sessile Droplets on Nano-Patterned Hydrophobic Surfaces

Dong Hwan Shin, Seong Hyuk Lee, Scott Retterer, Chang Kyoung Choi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2010, 132(8): 080905.
https://doi.org/10.1115/1.4001753
Published Online: June 11, 2010
View Article titled, Evaporation Characteristics of Sessile Droplets on Nano-Patterned Hydrophobic Surfaces
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Topics: Drops, Evaporation, Flow visualization, Hydrophobicity, Two-phase flow, Water, Wetting