- Computer Graphics and Visualization Techniques
- 3D Shape Modeling and Analysis
- Advanced Vision and Imaging
- Computational Geometry and Mesh Generation
- Fluid Dynamics and Heat Transfer
- Advanced Numerical Analysis Techniques
- Robotics and Sensor-Based Localization
- Artificial Intelligence in Games
- Fluid Dynamics Simulations and Interactions
- Human Motion and Animation
- Video Analysis and Summarization
- 3D Surveying and Cultural Heritage
- Digital Games and Media
- Evacuation and Crowd Dynamics
- Interactive and Immersive Displays
- Healthcare and Venom Research
- Image and Object Detection Techniques
- Lattice Boltzmann Simulation Studies
- Image Enhancement Techniques
- Virtual Reality Applications and Impacts
- Dementia and Cognitive Impairment Research
- Alzheimer's disease research and treatments
- Spam and Phishing Detection
- Image Processing and 3D Reconstruction
- Human Pose and Action Recognition
Gyeongsang National University Hospital
2025
Korea University
2014-2024
Eulji University
2023
University of Seoul
2004-2022
Pusan National University Yangsan Hospital
2020
Hong Kong Jockey Club
2019
Chinese University of Hong Kong
2019
University of the Basque Country
2019
Yonsei University
2009-2019
Tokyo Metropolitan Institute of Gerontology
2019
This paper proposes a method to predict fluctuations in the prices of cryptocurrencies, which are increasingly used for online transactions worldwide. Little research has been conducted on predicting price and number variety cryptocurrencies. Moreover, few methods proposed fluctuation currency inefficient because they fail take into account differences attributes between real currencies analyzes user comments cryptocurrency communities cryptocurrencies transactions. By focusing three each...
At interfaces between different fluids, properties such as density, viscosity, and molecular cohesion are discontinuous. To animate small-scale details of incompressible viscous multi-phase fluids realistically, we focus on the discontinuities in state variables that express these properties. Surface tension both free bubble surfaces is modeled using jump condition pressure field; velocity gradient field. driven by viscosity differences, also considered. obtain derivatives fields with...
We propose a hybrid method for simulating multiphase fluids such as bubbly water. The appearance of subgrid visual details is improved by incorporating new bubble model based on smoothed particle hydrodynamics (SPH) into an Eulerian grid-based simulation that handles background flows large bodies water and air. To overcome the difficulty in small bubbles context coarse grid, we heuristically interphase properties air means interactions between particles. As result, can animate lively motion...
Background: A large number of Alzheimer's disease (AD) studies have focused on medial temporal and cortical atrophy, while changes in the basal ganglia or thalamus received less attention. Objective: The aim this study was to investigate
Bitcoin is an online currency that used worldwide to make payments. It has consequently become investment vehicle in itself and traded a way similar other open currencies. The ability predict the price fluctuation of would therefore facilitate future payment decisions. In order Bitcoin, we analyse comments posted forum. Unlike most research on Bitcoin-related forums, which limited simple sentiment analysis does not pay sufficient attention note-worthy user comments, our approach involved...
Abstract We present a new fluid animation technique in which liquid and gas interact with each other, using the exampleof bubbles rising water. In contrast to previous studies only focused on one fluid, our system considersboth simultaneously. addition flowing motion, interactions between andgas cause buoyancy, surface tension, deformation movement of bubbles. For natural manipulationof topological changes removal numerical diffusion, we combine volume‐of‐fluid method andthe front‐tracking...
Objectives Identify the characteristics related to suicide rates in rural and urban areas of Korea discover factors that influence rate areas. Methods Using data on causes death from 2006 2008, were calculated compared after age-standardization based gender, age group urbanicity. And, order understand rate, total 10 local four domains - public service, social integration, residential environment, economic status selected for multiple regression analysis. Results The higher men than women,...
Importance Nelonemdaz selectively antagonizes the 2B subunit of N -methyl- d -aspartate glutamate receptor and scavenges free radical species. Objective To evaluate whether nelonemdaz enhances clinical outcomes patients with acute ischemic stroke undergoing emergent reperfusion therapy. Design, Setting, Participants This multicenter double-blind placebo-controlled randomized phase 3 trial (December 25, 2021, to June 30, 2023, in South Korea) recruited who met following criteria: National...
Abstract We introduce a biologically motivated simulation technique for the realistic shape deformation of drying leaves. In contrast to skeleton‐based leaf deformation, our approach simulates whole surface capture fine details desiccated represent as triangulated double‐layer structure that consists Delaunay triangulation discretized along vein and its corresponding Voronoi diagram. This can generate not only sharp creases veins, but also complicated curling crumpling on surface. The loss...
Objectives Busan is reported to have the highest mortality rate among 16 provinces in Korea, as well considerable health inequality across its districts. This study sought examine overall and cause-specific deprivation at town level Busan, thereby identifying towns causes of deaths be targeted for improving alleviating inequality. Methods Standardized ratios (SMRs) all-cause four specific leading death were calculated years 2005 through 2008. To construct a index, principal components factor...
Intestinal mucositis is a commonly encountered complication of chemotherapy. However, there are few effective treatments or preventive methods. Ursodeoxycholic acid (UDCA) stabilizes cell membranes, acts as an antioxidant and inhibits apoptosis, thereby exerting cytoprotective effects. The aim the present study was to examine ability UDCA protecting against chemotherapy‑associated mucositis. Sprague‑Dawley rats were randomly assigned five groups: Control, vehicle + 5‑fluorouracil (5‑FU),...
Abstract We propose a fast and effective technique to improve sub‐grid visual details of the grid based fluid simulation. Our method procedurally synthesizes flow fields coming from incompressible Navier‐Stokes solver vorticity generated by vortex particle for turbulence. are able efficiently animate smoke which is highly turbulent swirling with small scale details. Since this does not solve linear system in high‐resolution grids, it can perform simulation more rapidly. easily estimate...
Self-perceived health is a measure with well-established links mortality, healthcare services utilization, and future health. Various components of self-perceived have been identified in different populations. In this study, we aimed to investigate the Nepali population. This was cross-sectional survey conducted Kailali district Nepal 2014. The sample initially consisted 309 households, representative population one municipality village; however, 304 participants were included analyses....
This study proposes a pseudo-haptic interface optimized for novel portable hand grip haptic system, providing simple and realistic interfaces in various situations using the grips of users immersive virtual reality. The proposed system accurately determines force user through an Arduino-based design low-cost electromyography (EMG) sensors. Using this visual illusion-based is designed to maximize presence involves processes that use grasping illusion enable quickly become familiar with when...
In this paper, we present a method for predicting the value of virtual currencies used in gaming environments that support multiple users, such as massively multiplayer online role-playing games (MMORPGs). Predicting currency values environment has rarely been explored; it is difficult to apply real-world methods fluctuating or shares world on account differences domains between two worlds. To address issue, herein predict fluctuations by collecting user opinion data from community and...
Early video capsule endoscopy (VCE) may provide a high diagnostic yield and improve clinical outcomes in patients with overt obscure gastrointestinal bleeding (OGIB); however, there is no practical recommendation for the ideal timing of VCE application OGIB. Therefore, this study investigated efficacy to assess OGIB respect application.We retrospectively enrolled who had undergone between April 2004 February 2014 at tertiary referral academic center. We included hemodynamically stable...