Properties of a fluid, basic flow analysis techniques, fluid kinematics, hydrostatics, manometry, pressure distribution in rigid body motion of a fluid, control volume analysis, conservation of mass, linear and angular momentum, Bernoulli and energy equations, dimensional analysis, viscous flow in pipes, flow metering devices, external flows, estimation of lift and drag, turbo-machinery, open channel flow.
Senior design courses. Complete design sequence with a required capstone project spanning two semesters. While the focus is on the capstone disciplinary design experience, it includes the two-credit core module on Engineering Economic Design (E 421) during the first semester.
Senior design courses. Complete design sequence with a required capstone project spanning two semesters. While the focus is on the capstone disciplinary design experience, it includes the two-credit core module on Engineering Economic Design (E 421) during the first semester.
Experiments in selected mechanical engineering systems areas, including principles and applications of experimentation, data-acquisition, design of experiments, and written and oral reporting on experimental hardware and results.
School: Schaefer School of Engineering & Science
Department: Mechanical Engineering
Program: Nanotechnology / Mechanical Engineering
Research & Education
Education
Ph.D., Department of Mechanical and Aerospace Engineering (Concentration in MEMS/Nanotechnology), University of California at Los Angeles (UCLA), 2006
M.S., Division of Engineering (Concentration in Fluids, Thermal, and Chemical Processes), Brown University, 2002
M.S., Department of Aerospace Engineering, Seoul National University (Korea), 1997
B.S. (Magna cum Laude, with Honors), Department of Aerospace Engineering, Seoul National University (Korea), 1995
Research
Large-area 3-D nanopatterning and nanostructure fabrication
Coordinator: Workshops on Biomaterials Sciences and Engineering (2007-2008)
Technical Program Committee: The 1st Metro Area MEMS/NEMS Workshop (July 23, 2007)
Session Chair: 4th Annual DMI/ME Research Conference (May 16-17, 2007)
Professional Service
Reviewer (Journal): Applied Materials & Interface, Applied Surface Science, Biomaterials, IEEE Spectrum, Journal of Fluids Engineering, Journal of Microelectromechanical Systems, Journal of Micromechanics and Microengineering, Lab on a Chip, Langmuir, Microfluidics and Nanofluidics, Nanotechnology, Philosophical Transactions, Physical Review E, Physical Review Letters, Physics of Fluids
Reviewer (Conference Proceedings): ASME ICNMM, ASME IMECE, European Conference on Microfluidics
Reviewer (Grant Proposal): The City University of New York Internal Research Award Program, US National Science Foundation, Swiss National Science Foundation
Achievements & Professional Societies
Honors & Awards
NSF Fellowship, National Science Foundation (Summer Institute on Nano Mechanics and Materials), 2007
Graduate Fellowship, California NanoSystems Institute, 2002
Engineering Research Fellowship, Brown University, 2000
National Fellowship, Korean Government, 2000
'Magna cum laude' Honors, Seoul National University, 1995
Professional Societies
Member, American Society of Mechanical Engineers (ASME), 2005 - present
Member, Institute of Electrical and Electronic Engineers (IEEE), 2005 - present
Member, Korean-American Scientists and Engineers Association (KSEA), 2005 - present
Selected Publications
Books
C.-H. Choi, C.-J. Kim. "Design, Fabrication, and Applications of Large-Area Well-Ordered Dense-Array Three-Dimensional Nanostructures", Nanostructures in Electronics and Photonics, Faiz Rahman, Pan Stanford Publishing. (2008) (invited). Link .
Journals
C.-H. Choi, C.-J. Kim. "Droplet Evaporation of Pure Water and Protein Solution on Nanostructured Superhydrophobic Surfaces of Varying Heights", Langmuir 25, 7561-7567 (2009). Link .
K. Schenke-Layland, F. Rofail, S. Heydarkhan, J. M. Gluck, N. P. Ingle, E. Angelis, C.-H. Choi, W. R. MacLellan, R. E Beygui, R. J. Shemin, S. Heydarkhan-Hagvall. (2009). "The use of three-dimensional nanostructures to instruct cells to produce extracellular matrix for regenerative medicine strategies", Biomaterials 30. 4665-4675 . Link .
C.-H. Choi, S. H. Hagvall, B. M. Wu, J. C. Y. Dunn, R. E. Beygui, C.-J. Kim. "Cell Growth as a Sheet on Three-Dimensional Sharp-Tip Nanostructures", Journal of Biomedical Materials Research 89A, 804-817 (2009). Link .
C. Lee, C.-H. Choi, C.-J. Kim. (Jun 2008). "Structured Surfaces for a Giant Liquid Slip", Physical Review Letters 101, 064501 (2008). Link .
S. Heydarkhan-Hagvall, C.-H. Choi, J. Dunn, S. Heydarkhan, K. Schenke-Layland, W. R. MacLellan, R. E. Beygui. "Influence of Systematically Varied Nano-Scale Topography on Cell Morphology and Adhesion", Cell Communication & Adhesion 14, 181-194 (2007)
. Link .
C.-H. Choi, S. H. Hagvall, B. M. Wu, J. C. Y. Dunn, R. E. Beygui, C.-J. Kim. "Cell Interaction with Three-Dimensional Sharp-Tip Nanotopography", Biomaterials 28, 1672-1679 (2007). Link .
C.-H. Choi, C.-J. Kim. "Fabrication of Dense Array of Tall Nanostructures over a Large Sample Area with Sidewall Profile and Tip Sharpness Control", Nanotechnology 17, 5326-5333 (2006). Link .
C.-H. Choi, C.-J. Kim. "Choi and Kim Reply (A Reply to the Comment on ‘Large Slip of Aqueous Liquid Flow over a Nanoengineered Superhydrophobic Surface’)", Physical Review Letters 97, 109602 (2006)
. Link .
C.-H. Choi, U. Ulmanella, J. Kim, C.-M. Ho, C.-J. Kim. "Effective Slip and Friction Reduction in Nanograted Superhydrophobic Microchannels", Physics of Fluids 18, 087105 (2006) (also in Virtual Journal of Nanoscale Science & Technology 14(10), September 4, 2006)
. Link .
C.-H. Choi, C.-J. Kim. "Large Slip of Aqueous Liquid Flow over a Nanoengineered Superhydrophobic Surface", Physical Review Letters 96, 066001 (2006) (also in Virtual Journal of Nanoscale Science & Technology, 13(8), February 27, 2006). Link .
C.-H. Choi, K. J. A. Westin, K. S. Breuer. "Apparent Slip Flows in Hydrophilic and Hydrophobic Microchannels", Physics of Fluids 15, 2897-2902 (2003)
. Link .
K. J. A. Westin, C.-H. Choi, K. S. Breuer. "A Novel System for Measuring Liquid Flow Rates with Nanoliter per Minute Resolution", Experiments in Fluids 34, 635-642 (2003). Link .
Magazine
C.-H. Choi, S. H. Hagvall, B. M. Wu, J. C. Y. Dunn, R. E. Beygui, C.-J. Kim. "The Year in Images", Biomaterials 2007 .
C.-H. Choi, C.-J. Kim. "Researchers Discover No-slip Condition Does Not Hold at the Nanoscale", (2006). UCLA Engineer .
R. Leeladhar, W. Xu, C.-H. Choi. "Effects of Nanofluids on Droplet Evaporation and Wetting on Nanoporous Superhydrophobic Surfaces", in Proceedings of ASME MNHMT, December 18-22, 2009, Shanghai, China. .
W. Xu, C.-H. Choi. "Effects of Structural Topography on Nanofluids Droplet Evaporation on Multifarious Superhydrophobic Surfaces", in Proceedings of ASME MNHMT, December 18-22, 2009, Shanghai, China. .
I. Wathuthanthri, C.-H. Choi. "Tunable Lloyd-Mirror Interferometer for Large-Area Nanopatterning", in Proceedings of ASME IMECE, November 15-19, 2009, Orlando, FL, USA.
R. Leeladhar, W. Xu, C.-H. Choi. "Evaporation of Nanoparticles Droplets on Nano-Porous Superhydrophobic Surfaces", in Proceedings of ASME IMECE, November 15-19, 2009, Orlando, FL, USA. .
W. Xu, C.-H. Choi. "Nanofluids Evaporation Kinetics on Microstructured Superhydrophobic Surfaces", in Proceedings of ASME IMECE, November 15-19, 2009, Orlando, FL, USA. .
R. Leeladhar, W. Xu, Y.-T. Tsai, E.-H. Yang, C.-H. Choi. "Nanowire Self-Assembly in Droplet Evaporation on Superhydrophobic Surfaces", in Proceedings of the 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2009), November 1-5, 2009, Jeju, Korea. .
W. Xu, C.-H. Choi. "Evaporation Kinetics of Nanofluid Droplets on Superhydrophobic Surfaces", in Proceedings of the 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2009), November 1-5, 2009, Jeju, Korea. .
C.-H. Choi, C.-J. Kim. "Cell Growth on Three-Dimensional Sharp-Tip Nanostructures of Hydrophilic and Hydrophobic Surfaces", in Proceedings of the 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2009), November 1-5, 2009, Jeju, Korea. .
C.-H. Choi, C.-J. Kim. "Nanostructured surfaces for anti-biofouling/anti-microbial applications", in Proceedings of the SPIE Defense, Security, and Sensing, April 13-17, 2009, Orlando, FL, USA.
Y.-T. Tsai, W. Xu, E.-H. Yang, C.-H. Choi. "Interfacial-Tension-Directed Self-Assembly of Nanowires on a Superhydrophobic Surface", in Proceedings of ASME IMECE, November 2-6, 2008, Boston, MA, USA. .
C. Lee, C.-H. Choi, C.-J. Kim. "Effect of Geometric Parameters of Superhydrophobic Surface on Liquid Slip", in Proceedings of ASME IMECE, November 2-6, 2008, Boston, MA, USA. .
C.-H. Choi, C.-J. Kim. "Droplet Evaporation in Nanostructured Superhydrophobic Surfaces", in Proceedings of the 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2008), October 12-16, 2008, San Diego, CA, USA. .
C.-H. Choi, S. H. Hagvall, J. C. Y. Dunn, B. M. Wu, C.-J. Kim. "Cell Adhesions on NanoTurf Surfaces", Proceedings of MEMS 2006: The 19th International Conference on Micro Electro Mechanical Systems
. January 22-26, 2006, Istanbul, Turkey.
C.-H. Choi, C.-J. Kim. "Measurement of Liquid Slip on NanoTurf Surfaces", Proceedings of NANO2005 Integrated Nanosystems: Design, Synthesis and Applications
. September 14-16, 2005, University of California, Berkeley, CA, USA.
C.-H. Choi, C.-J. Kim. "Control of Sidewall Profile of Silicon Nanostructures in Bosch Process and Its Use for Sharp Tip Fabrication", Proceedings of UKC2005: The 2005 US-Korea Conference on Science, Technology, & Enterpreneurship. August 11-13, 2005, Irvine, CA, USA.
C.-H. Choi, C.-J. Kim. "Fabrication of Silicon Nanostructures with Various Side Wall Profiles and Sharp Tips", Proceedings of Transducers’05: The 13th International Conference on Solid-State Sensors, Actuators and Microsystems. June 5-9, 2005, Seoul, Korea.
C.-J. Kim, C.-H. Choi. "Nano-engineered Low Friction Surface for Liquid Flow", Proceedings of the 6th KSME-JSME Thermal and Fluids Engineering Conference. March 20-23, 2005, Jeju, Korea.
C.-H. Choi, J. Kim, C.-J. Kim. "NanoTurf Surfaces for Reduction of Liquid Flow Drag in Microchannels", Proceedings of NANO2004 Integrated Nanosystems: Design, Synthesis and Applications. September 22-24, 2004, Pasadena, CA, USA.
C.-H. Choi, K. J. A. Westin, K. S. Breuer. "To Slip or Not to Slip: Water Flows in Hydrophilic and Hydrophobic Microchannels", Proceedings of ASME IMECE. November 2002, New Orleans, LA, USA.
K. J. A. Westin, C.-H. Choi, P. Huang, Z. Cao, K. S. Breuer, B. Caswell, P. Richardson, M. Sibulkin. "Liquid Transport Properties in Submicron Channel Flows", Proceedings of ASME IMECE. November 2001, New York, NY, USA.
K. J. A. Westin, C.-H. Choi, K. S. Breuer. "Rheological Shear Experiments in Micron Scale Geometries", Proceedings of the 5th International Conference on Micro Total Analysis Systems (MicroTAS2001). October 2001, Monterey, CA, USA.
