User profiles for H.H. Choi

Hyun Ho Choi

- Verified email at gnu.ac.kr - Cited by 2701

Hayeon (Hailey) Choi

- Verified email at ttu.edu - Cited by 388

Effects of the physical environment on cognitive load and learning: Towards a new model of cognitive load

HH Choi, JJG Van Merriënboer, F Paas - Educational psychology review, 2014 - Springer
Although the theoretical framework of cognitive load theory has acknowledged a role for the
learning environment, the specific characteristics of the physical learning environment that …

[HTML][HTML] Fecal microbiota transplantation: current applications, effectiveness, and future perspectives

HH Choi, YS Cho - Clinical endoscopy, 2016 - ncbi.nlm.nih.gov
Fecal microbiota transplantation (FMT) is the infusion of liquid filtrate feces from a healthy
donor into the gut of a recipient to cure a specific disease. A fecal suspension can be …

25th anniversary article: microstructure dependent bias stability of organic transistors

WH Lee, HH Choi, DH Kim, K Cho - Advanced Materials, 2014 - Wiley Online Library
… WH Lee and HH Choi contributed equally to this work. This work was supported by a grant
(Code No. 2011–0031628) from the Center for Advanced Soft Electronics under the Global …

Critical assessment of charge mobility extraction in FETs

HH Choi, K Cho, CD Frisbie, H Sirringhaus… - Nature materials, 2018 - nature.com
Mobility is an important charge-transport parameter in organic, inorganic and hybrid
semiconductors. We outline some of the common pitfalls of mobility extraction from field-effect …

Aspirin versus clopidogrel for chronic maintenance monotherapy after percutaneous coronary intervention (HOST-EXAM): an investigator-initiated, prospective …

…, HK Jeon, KS Cha, SH Jo, JK Ryu, IW Suh, HH Choi… - The Lancet, 2021 - thelancet.com
Background Optimal antiplatelet monotherapy during the chronic maintenance period in
patients who undergo coronary stenting is unknown. We aimed to compare head to head the …

Factors affecting customer intention to use online food delivery services before and during the COVID-19 pandemic

C Hong, HH Choi, EKC Choi, HWD Joung - Journal of Hospitality and …, 2021 - Elsevier
With the emerging popularity of online food delivery (OFD) services, this research examined
predictors affecting customer intention to use OFD services amid the Coronavirus disease (…

Comparison of k-nearest neighbor, quadratic discriminant and linear discriminant analysis in classification of electromyogram signals based on the wrist-motion …

KS Kim, HH Choi, CS Moon, CW Mun - Current applied physics, 2011 - Elsevier
In this study, the authors compared the k-Nearest Neighbor (k-NN), Quadratic Discriminant
Analysis (QDA), and Linear Discriminant Analysis (LDA) algorithms for the classification of …

LMI-based sliding surface design for integral sliding mode control of mismatched uncertain systems

HH Choi - IEEE Transactions on Automatic Control, 2007 - ieeexplore.ieee.org
… [4] HH Choi, “A new method for variable structure control system design: A linear matrix
inequality … [8] HH Choi, “Variable structure output feedback control design for a class of uncertain …

Adaptive PID speed control design for permanent magnet synchronous motor drives

…, VQ Leu, TD Do, EK Kim, HH Choi - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
This paper proposes an adaptive proportional-integral-derivative (PID) speed control
scheme for permanent magnet synchronous motor (PMSM) drives. The proposed controller …

Enhanced thermoelectric properties of PEDOT: PSS nanofilms by a chemical dedoping process

H Park, SH Lee, FS Kim, HH Choi… - Journal of Materials …, 2014 - pubs.rsc.org
We report that a simple chemical dedoping treatment of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
(PEDOT:PSS) nanofilms enhances the thermoelectric properties of the …