A5048789866- Cardiovascular Health and Disease Prevention
- Ultrasound and Hyperthermia Applications
- Ultrasound Imaging and Elastography
- Underwater Acoustics Research
- Blood properties and coagulation
- Photoacoustic and Ultrasonic Imaging
- Cerebrovascular and Carotid Artery Diseases
- Underwater Vehicles and Communication Systems
- Coronary Interventions and Diagnostics
- Erythrocyte Function and Pathophysiology
- Marine animal studies overview
- Marine and fisheries research
- Advanced MRI Techniques and Applications
- Cardiovascular Function and Risk Factors
- Flow Measurement and Analysis
- Marine and Coastal Research
- Fluid Dynamics and Turbulent Flows
- Optical Coherence Tomography Applications
- Blind Source Separation Techniques
- Water Quality Monitoring Technologies
- Ultrasonics and Acoustic Wave Propagation
- Marine and coastal ecosystems
- Cardiac Imaging and Diagnostics
- Retinal Imaging and Analysis
- Oceanographic and Atmospheric Processes
Jeju National University
2016-2025
Focused Ultrasound Foundation
2016-2024
University of Virginia
2018-2023
Jeju National University Hospital
2019
Toronto Metropolitan University
2017
Agency for Defense Development
2012
Doheny Eye Institute
2008
University of Southern California
2003-2008
Cheju Halla University
2004-2006
Pennsylvania State University
2000-2002
Multibeam echosounder (MBES) backscatter data are influenced by underwater sound absorption, which is dependent on environmental parameters such as temperature, salinity, and depth. This study leverages CTD datasets from the Korea Oceanographic Data Center (KODC) to analyze visualize spatiotemporal variations in absorption East Sea of Korea, subject pronounced variability over time space. The legacy MBES data, originally processed using generalized that neglected variations, were compared...
Passive acoustic monitoring (PAM) is commonly utilized to monitor cetacean species' distribution, abundance, and behavior. The demand for automated methods detect extract vocalizations from data has increased in the last few decades. Automatic whistle extraction of Indo-Pacific Bottlenose Dolphin (IPBD) other whistle-producing delphinids habitating coastal areas represents a challenging problem due high ambient noise, including ship noise snapping shrimp at same habitat. signal containing...
This observational study investigated the changes in choroidal thickness (ChT) different patterns of diabetic macular edema (DME) based on image processing using enhanced-depth imaging spectral-domain optical coherence tomography (EDI-SD-OCT). Participants with ocular conditions affecting fundus view, including retinal diseases, were excluded. After observing patient's medical record, multicolor photos, maps, and subtypes DME diagnosed according to criteria reported by Early Treatment...
The present study aims to identify a new recipe for reusable tissue mimicking phantoms that allows the optical visualization of thermal lesions produced in various applications therapeutic ultrasound where mechanisms are important. phantom was made polyacrylamide hydrogel containing nonionic surface-active agent (NiSAA) as temperature-sensitive indicator. Threshold temperature above which lesion is regarded be formed controlled by selecting an NiSAA. In study, three NiSAAs polyoxyethylene...
The acoustic integrated backscattered power (IBP) of the phytoplankton Cochlodinium polykrikoides, which causes red tides in Korean waters, was measured laboratory and sea situ to investigate feasibility observing using high frequency ultrasound at 5 10 MHz. IBP with cultured C. polykrikoides abundance levels 90, 110, 200, 260, 300, 340, 360, 600, 700 850 cells/mL laboratory. Using same transducers that were attached side a research vessel, over 9 km ship track near Gumo Islands Yeosu...
Abstract Background The phase correction on transcranial focused ultrasound is essential to regulate unwanted focal point shift caused by skull bone aberration. aim of the current study was design and investigate feasibility a ray-based toolkit for ultrasound. Results peak pressure at area improved 140.5 ± 7.0% target I 134.8 19.1% II using proposed toolkit, respectively. A total computation time 402.1 24.5 milliseconds achieved each sonication. Conclusion designed software can be used as...
Erythrocyte aggregation (EA) is a highly dynamic, vital phenomenon to interpreting human hemorheology, which would be helpful for the diagnosis and prediction of circulatory anomalies. Previous studies EA on erythrocyte migration Fåhraeus Effect are based microvasculature. They have not considered natural pulsatility blood flow or large vessels mainly focused shear rate along radial direction under steady comprehend dynamic properties EA. To our knowledge, rheological characteristics...
Abstract Nitrogen-tungsten co-doped titanium dioxide nanoparticles (W-N-doped TiO 2 NPs) are employed for the photocatalytic degradation of environmental pollutants. However, potential impact these on central nervous system remains a subject concern. This study aimed to evaluate effects W-N-doped NPs neurophysiological and biochemical parameters healthy rat brains, including behavioral monitoring, electroencephalogram analysis, oxidative stress markers quantification. Intraperitoneal...
A non-invasive, brain-to-brain interface (BBI) requires precision neuromodulation and high temporal resolution as well portability to increase accessibility. BBI is a combination of brain-computer (BCI) computer-brain (CBI). The optimization BCI parameters has been extensively researched, but CBI not. Parameters taken from the literature were used simulate two-class medical monitoring system under wide range conditions. function was assessed using information transfer rate (ITR), measured in...
Ultrasonic backscatter from flowing and static rat red blood cells (RBCs) in autologous plasma 360 kDa polyvinylpyrrolidone (PVP 360) solution was measured as a function of hematocrit. The flow speed varied by stirring magnet cylindrical chamber. radio-frequency (RF) signals backscattered RBC samples were over 5 min pulse-echo setup with MHz focused transducer. Although the intact has poor aggregability, aggregation enhanced replacing its higher molecular weight polymer solution....