User profiles for K. J. Choi

Kyoung Jin Choi

- Verified email at unist.ac.kr - Cited by 9355

Kwang-Jin Choi

- Verified email at fxgear.net - Cited by 1545

Enhancement of Ferroelectricity in Strained BaTiO3 Thin Films

KJ Choi, M Biegalski, YL Li, A Sharan, J Schubert… - Science, 2004 - science.org
Biaxial compressive strain has been used to markedly enhance the ferroelectric properties
of BaTiO 3 thin films. This strain, imposed by coherent epitaxy, can result in a ferroelectric …

Digital cameras with designs inspired by the arthropod eye

YM Song, Y Xie, V Malyarchuk, J Xiao, I Jung, KJ Choi… - Nature, 2013 - nature.com
In arthropods, evolution has created a remarkably sophisticated class of imaging systems,
with a wide-angle field of view, low aberrations, high acuity to motion and an infinite depth of …

Stable but responsive cloth

KJ Choi, HS Ko - ACM SIGGRAPH 2005 Courses, 2005 - dl.acm.org
We present a semi-implicit cloth simulation technique that is very stable yet also responsive.
The stability of the technique allows the use of a large fixed time step when simulating all …

Gas sensing properties of defect-controlled ZnO-nanowire gas sensor

…, KS Park, JH Heo, JG Park, DW Kim, KJ Choi… - Applied physics …, 2008 - pubs.aip.org
The effect of oxygen-vacancy-related defects on gas-sensing properties of ZnO-nanowire
gas sensors was investigated. Gas sensors were fabricated by growing ZnO nanowires …

Novel fabrication of an SnO2 nanowire gas sensor with high sensitivity

YJ Choi, IS Hwang, JG Park, KJ Choi, JH Park… - …, 2008 - iopscience.iop.org
We fabricated a nanowire-based gas sensor using a simple method of growing SnO 2
nanowires bridging the gap between two pre-patterned Au catalysts, in which the electrical …

GaAs interfacial self-cleaning by atomic layer deposition

…, B Lee, FS Aguirre-Tostado, KJ Choi… - Applied Physics …, 2008 - pubs.aip.org
The reduction and removal of surface oxides from GaAs substrates by atomic layer deposition
(ALD) of Al 2 O 3 and Hf O 2 are studied using in situ monochromatic x-ray photoelectron …

Preparation and characterization of a nanoscale poly (vinyl alcohol) fiber aggregate produced by an electrospinning method

…, DR Lee, SJ Park, GB Kwag, KJ Choi - Journal of Polymer …, 2002 - Wiley Online Library
Nanoscale poly(vinyl alcohol) (PVA) fiber (100–500 nm) aggregates were prepared with an
electrospinning technique. Additionally, a chemical crosslinking method was used to …

[HTML][HTML] One-dimensional oxide nanostructures as gas-sensing materials: review and issues

KJ Choi, HW Jang - Sensors, 2010 - mdpi.com
In this article, we review gas sensor application of one-dimensional (1D) metal-oxide
nanostructures with major emphases on the types of device structure and issues for realizing …

Removal of antibiotics by coagulation and granular activated carbon filtration

KJ Choi, SG Kim, SH Kim - Journal of hazardous materials, 2008 - Elsevier
Treatment of seven tetracycline classes of antibiotic (TAs) from raw waters (synthetic and
river) was evaluated using coagulation and granular activated carbon (GAC) filtration in this …

Distinctive electrophysiological properties of pulmonary veins in patients with atrial fibrillation

P Jaïs, M Hocini, L Macle, KJ Choi, I Deisenhofer… - Circulation, 2002 - Am Heart Assoc
Background— Atrial fibrillation (AF) is frequently initiated from pulmonary veins (PVs), but
little is known of the electrophysiological properties of PVs. Methods and Results— Two …