12 Result(s)
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Article
Jong-Uk Park
English
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Article
Open AccessRepID represses megakaryocytic differentiation by recruiting CRL4A-JARID1A at DAB2 promoter
Megakaryocytes (MKs) are platelet precursors, which arise from hematopoietic stem cells (HSCs). While MK lineage commitment and differentiation are accompanied by changes in gene expression, many factors that ...
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Article
A Prediction Algorithm for Hypoglycemia Based on Support Vector Machine Using Glucose Level and Electrocardiogram
A prediction algorithm for hypoglycemic events is proposed using glucose levels and electrocardiogram (ECG) with support vector machine (SVM). We extracted the corrected QT interval and five heart rate variabi...
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Article
Energy metabolism in Chinese hamster ovary (CHO) cells: Productivity and beyond
Chinese hamster ovary (CHO) cell lines have been widely used to produce recombinant proteins. While the biosynthesis of recombinant proteins is energy-intensive, CHO cells exhibit inefficient metabolism, chara...
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Relationship between submicron particle formation and air mass history observed in the Asian continental outflow at Gosan, Korea, during 2008–2018
We investigated the impact of air mass origin on submicron particle size distributions and new particle formation (NPF) events using 10-year measurements at Gosan, Korea, in the Asian continental outflow. NPF ...
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Automatic detection of sleep-disordered breathing events using recurrent neural networks from an electrocardiogram signal
In this study, we propose a novel method for automatically detecting sleep-disordered breathing (SDB) events using a recurrent neural network (RNN) to analyze nocturnal electrocardiogram (ECG) recordings. We d...
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Article
Estimation of Arterial Blood Pressure Based on Artificial Intelligence Using Single Earlobe Photoplethysmography during Cardiopulmonary Resuscitation
This study investigates the feasibility of estimation of blood pressure (BP) using a single earlobe photoplethysmography (Ear PPG) during cardiopulmonary resuscitation (CPR). We have designed a system that car...
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Multi-Class Classification of Sleep Apnea/Hypopnea Events Based on Long Short-Term Memory Using a Photoplethysmography Signal
In this study, we proposed a new method for multi-class classification of sleep apnea/hypopnea events based on a long short-term memory (LSTM) using photoplethysmography (PPG) signals. The three-layer LSTM mod...
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Automated Detection of Obstructive Sleep Apnea Events from a Single-Lead Electrocardiogram Using a Convolutional Neural Network
In this study, we propose a method for the automated detection of obstructive sleep apnea (OSA) from a single-lead electrocardiogram (ECG) using a convolutional neural network (CNN). A CNN model was designed w...
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Article
Cardiopulmonary Coupling Analysis Using Home Sleep Monitoring System Based on Air Mattress
This study investigates the feasibility of cardiopulmonary coupling (CPC) using home sleep monitoring system. We have designed a system to measure respiratory signals and normal-to-normal (NN) interval series ...
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Article
Open AccessComparison of GPS receiver DCB estimation methods using a GPS network
Two approaches for receiver differential code biases (DCB) estimation using the GPS data obtained from the Korean GPS network (KGN) in South Korea are suggested: the relative and single (absolute) methods. The...
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Open AccessMonitoring the ionospheric total electron content variations over the Korean Peninsula using a GPS network during geomagnetic storms
We have established a regional ionospheric model (RIM) for investigating changes in the total electron content (TEC) over South Korea using 38 Korean GPS reference stations. The inverse distance weighted (IDW)...
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Article
Open AccessGPS ionospheric tomography: A comparison with the IRI-2001 model over South Korea
The International Reference Ionosphere model 2001 (IRI-2001) is one of the most comprehensive empirical models of the ionosphere and has been widely used to estimate the electron density profiles in the altitu...
