A5100769319- Teleoperation and Haptic Systems
- Virtual Reality Applications and Impacts
- Medical Image Segmentation Techniques
- Tactile and Sensory Interactions
- 3D Shape Modeling and Analysis
- Medical Imaging and Analysis
- Computer Graphics and Visualization Techniques
- Simulation and Modeling Applications
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Cardiovascular Function and Risk Factors
- Elasticity and Material Modeling
- Advanced Neural Network Applications
- Bioinformatics and Genomic Networks
- Augmented Reality Applications
- Biomedical Text Mining and Ontologies
- Education and Learning Interventions
- Hand Gesture Recognition Systems
- Data Visualization and Analytics
- Advanced MRI Techniques and Applications
- Advanced Vision and Imaging
- Manufacturing Process and Optimization
- Medical Imaging Techniques and Applications
- Diabetic Foot Ulcer Assessment and Management
- Advanced Neuroimaging Techniques and Applications
Korea Advanced Institute of Science and Technology
2016-2025
Kootenay Association for Science & Technology
2009-2025
Yonsei University
2024
Yonsei University College of Dentistry
2024
Severance Hospital
2024
Incheon St. Mary's Hospital
2023
Catholic University of Korea
2023
Kyungpook National University
2021
Harvard University
2020
Kyonggi University
2019-2020
We present a new approach for the analysis of left ventricular shape and motion based on development class volumetric deformable models. estimate deformation complex ventricle (LV) in terms few parameters that are functions whose values vary locally across LV. These capture radial longitudinal contraction, axial twisting, long-axis deformation. Using Lagrangian dynamics finite-element theory, we convert these primitives into dynamic models deform due to forces exerted by datapoints....
The authors present a new method for analyzing the motion of heart's left ventricle (LV) from tagged magnetic resonance imaging (MRI) data. Their technique is based on development class physics-based deformable models whose parameters are functions. They allow definition parameterized primitives and deformations which can capture local shape variation complex object. Furthermore, these intuitive require no post-processing in order to be used by physician. Using approach, convert geometric...
A disposable cyclic voltammetry (CV) tag is printed on a plastic film by integrating wireless power transmitter, polarized triangle wave generator, electrochemical cell and signage through scalable gravure printing method. By proximity of 13.56 MHz RF reader, the CV generates 320 mHz triangular sweep from +500 mV to -500 which enable scan in tag. simply dropping any specimen solution tag, presence solutes can be detected shown five sec. 10 mM N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD)...
Optical diffraction tomography (ODT) is an interferometric microscopy technique capable of measuring 3-D refractive index (RI) distribution transparent samples. Multiple 2-D holograms a sample illuminated with various angles are measured, from which RI map the reconstructed via theory. ODT has been proved as powerful tool for study biological cells, due to its non-invasiveness, label-free and quantitative imaging capability. Recently, our group demonstrated that digital micromirror device...
With the aim of facilitating early detection Alzheimer's disease, Disease Neuroimaging Initiative proposed two stages based on memory performance: mild cognitive impairment (EMCI) and late (LMCI). The current study was designed to investigate structural differences in terms surface atrophy microstructural changes hippocampus EMCI LMCI.Hippocampal shape modeling progressive template deformation performed T1-weighted MRI images obtained from 20 normal (CN) subjects, 17 patients, LMCI patients....
Although people usually contact a surface with some area rather than point, most haptic devices allow user to interact virtual object at one point time and likewise rendering algorithms deal such situations only. In palpation procedure, medical doctors push rub the organ's surface, are provided sensation of distributed pressure force (reflecting force) for discerning doubtable areas organ. this paper, we suggest real-time area-based describe simultaneously, present interface system generate...
Identification of predictive biomarkers is essential for the successful development targeted therapy. Insulin-like growth factor 1 receptor (IGF1R) has been examined as a potential therapeutic target various cancers. However, recent clinical trials showed that anti-IGF1R antibody and chemotherapy are not effective treating lung cancer.
Magnetic resonance imaging (MRI)-derived hippocampus measurements have been associated with different cognitive domains. The knowledge of hippocampal structural deformations as we age has contributed to our understanding the overall aging process. Different morphological shape analysis methods developed, but it is unclear how their principles relate and consistent are published results in relation cognition normal elderly light new deep-learning-based (DL) state-of-the-art modeling methods....
We present a new method for analyzing the 3D motion of heart's left ventricle (LV) from tagged magnetic resonance imaging (MRI) data. Our technique is based on development class volumetric physics-based deformable models whose parameters are functions and can capture local shape variation an object. These require no complex post-processing in order to be used by physician. allow accurate estimation inner outer walls LV as well within walls. also calculating forces exerted MRI data material...
Purpose: Residential care/assisted living facilities have become an alternative to nursing homes for many individuals, yet little information exists about staffing in these settings and the effect of staffing. This study analyzed intensity skill mix staff using data from a four-state study, their relationship outcomes. Design Methods: We obtained longitudinal 1,894 residents 170 residential participating Collaborative Studies Long-Term Care. Descriptive statistics assessed levels direct care...
Bronchospasm induced in non-asthmatic human subjects can be easily reversed by a deep inspiration (DI) whereas bronchospasm that occurs spontaneously asthmatic cannot. This physiological effect of DI has been attributed to the manner which causes airway smooth muscle (ASM) cells stretch, but underlying molecular mechanisms-and their failure asthma-remain obscure. Using and tissues from wild type zyxin-/- mice we report responses transient stretch physiologic magnitude duration. At level...
Refugees affected by multiple traumatic stressors are at high risk for developing trauma-related mental disorders, including posttraumatic stress disorder (PTSD), depression, and insomnia, which is sometimes overlooked. The present study examined the effectiveness of narrative exposure therapy (NET) on symptoms in a sample North Korean refugee youth. We focused sleep patterns addition to changes symptom severity PTSD, internalizing externalizing symptoms. youth (N = 20) with PTSD were...
Accurately recovering the hippocampal shapes against rough and noisy segmentations is as challenging achieving good anatomical correspondence between individual shapes. To address these issues, we propose a mesh-to-volume registration approach, characterized by progressive model deformation. Our implements flexible weighting scheme for rigidity under multi-level neighborhood vertex connectivity. This method induces large-to-small scale deformation of template surface to build pairwise...
Purpose: This study was performed to understand the relationship between ego-resilience and clinical competence of nursing students. Methods: The subjects were 291 juniors seniors who received training from universities in Gyeongsang, Jeolla, Chungcheong. General characteristics, main variables analyzed using descriptive statistics such as frequency, percentage, mean, standard deviation; by general characteristics t-test, ANOVA; correlations Pearson correlation coefficients. Results: mean...
Electrical modeling of the chemical gas sensors was successfully applied to TiO2 nanofiber by developing an equivalent circuit model where junction capacitance as well resistance can be separated from comparable stray capacitance. The Schottky impedance exhibited a characteristic skewed arc described Cole–Davidson function, and variation fit derived parameters with temperature, bias, NO2 concentration indicated definitely physicochemical sensing mechanism based on Pt|TiO2 junctions against...