A5100627888- Advanced Memory and Neural Computing
- Ferroelectric and Negative Capacitance Devices
- Nuclear Materials and Properties
- MRI in cancer diagnosis
- Semiconductor materials and devices
- Perovskite Materials and Applications
- Breast Lesions and Carcinomas
- ZnO doping and properties
- Nuclear reactor physics and engineering
- Electronic and Structural Properties of Oxides
- Optical Systems and Laser Technology
- Ferroelectric and Piezoelectric Materials
- Advanced Numerical Analysis Techniques
- Advanced Measurement and Metrology Techniques
- Soil Mechanics and Vehicle Dynamics
- Advanced MRI Techniques and Applications
- Radiomics and Machine Learning in Medical Imaging
- Computer Graphics and Visualization Techniques
- Gas Sensing Nanomaterials and Sensors
- Neuroscience and Neural Engineering
- Advanced Neuroimaging Techniques and Applications
- Chalcogenide Semiconductor Thin Films
- Adaptive optics and wavefront sensing
- Metallurgical Processes and Thermodynamics
- Thermodynamic and Structural Properties of Metals and Alloys
Seoul National University Hospital
2017-2024
Seoul National University
2018-2024
Korea National Sport University
2024
Ewha Womans University
2020-2023
Inje University Ilsan Paik Hospital
2023
Korea District Heating Corporation
2021-2022
National University College
2022
Ewha Womans University Medical Center
2021
Konkuk University
2009-2020
Inha University
2011-2019
High-quality CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub> hybrid perovskite single crystal growth and outstanding optoelectronic application using the complete dissolution at low temperatures based on temperature solubility, which has been demonstrated for first time.
Background Few studies have compared abbreviated breast MRI with full-protocol in women a personal history of cancer (PHBC), and they not adjusted for confounding variables. Purpose To compare PHBC by using propensity score matching to adjust Materials Methods In this single-center retrospective study, who underwent (January 2008-August 2017) or (September 2017-April 2019) were identified. With use score-matched cohort, screening performances between the two groups McNemar test...
We have observed a switching transition between bistable memory and monostable threshold in Pt/NiO/Pt structure. Bistable could be changed to by applying positive electrical pulse with height of 2 V width 10−2 10−4 s. The change is reversible negative the same width. By considering polarity- width-dependence compositional difference on properties NiOx, we proposed model which migration oxygen ions (O2−) responsible for structures.
// Sun-Yong Kim 1 , Haeng-Jun 1, 2 Sung Un Kang Yang Eun Ju Kyeong Park Yoo Seob Shin Yeon Soo Keunho Lee 3 Chul-Ho Department of Otolaryngology, Ajou University School Medicine, Suwon, Republic Korea Molecular Science and Technology, University, PSM America Inc., Colorado Springs, CO, USA Correspondence to: Kim, e-mail: ostium@ajou.ac.kr Keywords: non-thermal plasma (NTP), head neck cancer (HNC), AKT ubiquitination, liquid type (LTP), mitochondrial E3 ubiquitin protein ligase (MUL1)...
Abstract Highly nonlinear bistable current-voltage ( I–V ) characteristics are necessary in order to realize high density resistive random access memory (ReRAM) devices that compatible with cross-point stack structures. Up now, such have been achieved by introducing complex device structures consisting of selection elements (selectors) and which connected series. In this study, we report bipolar switching (RS) behaviours nano-crystalline BiFeO 3 (BFO) nano-islands grown on Nb-doped SrTiO...
Background parenchymal enhancement (BPE) is a known risk factor for breast cancer. However, studies on the association between BPE and second cancer are still lacking. Purpose To investigate whether at surveillance MRI associated with subsequent in women personal history of Materials Methods A retrospective search imaging database an academic medical center identified consecutive examinations performed January 2008 December 2017 who underwent surgery primary had no prior diagnosis was...
We observed bipolar switching behavior from an epitaxial strontium cobaltite film grown on a SrTiO3 (001) substrate. The crystal structure of has been known to undergo topotactic phase transformation between two distinct phases: insulating brownmillerite (SrCoO2.5) and conducting perovskite (SrCoO3−δ) depending the oxygen content. current–voltage characteristics showed that it could have reversible insulator-to-metal transition triggered by electrical bias voltage. propose resistance in...
To correlate CT parameters on detector-based dual-energy enterography (DECTE) with Crohn's disease activity index (CDAI) and externally validate quantitative parameters.Thirty-nine patients CD were retrospectively enrolled. Two radiologists reviewed DECTE images by consensus for qualitative features. attenuation iodine concentration the diseased bowel also measured. Univariate statistical tests used to evaluate whether there was a significant difference in CTE features between remission...
We report the impact of intrinsic defects in epitaxial BiFeO3 films on charge conduction and resistive switching Pt/BiFeO3/SrRuO3 capacitors, although show very similar ferroelectric domain types probed by piezoresponse force microscopy. Capacitors with p-type Bi-deficient n-type Bi-rich exhibit switchable diode conventional bipolar behaviors, respectively. Both capacitors good retention properties a high ON/OFF ratio &gt;100 that &gt;1000 films. The present investigation advances...
High quality wide bandgap perovskite acting as top cells in multijunction solar were developed by adding Pb(SCN) 2 to precursor solutions. The number of grain boundaries was reduced and passivated leading an increase carrier extraction.
The purpose of this study is to retrospectively evaluate the differential CT features isolated benign and malignant main pancreatic duct (MPD) dilatation investigate whether diagnostic performance radiologists can be improved with knowledge these features.Forty-one patients who had MPD without any visible mass on from January 2000 October 2016 were enrolled in study. Two reviewed images consensus for location, shape (smooth vs abrupt), length transition, dilated (PD) diameter, presence...
Background Recent studies showed the possible association between inflammation-induced blood-brain barrier (BBB) structural changes followed by greater permeability of BBB and chronic pain. Thus, measurement breakdown would be a valuable aid in diagnosis migraine. Dynamic contrast material–enhanced (DCE) MRI can determine perfusion properties related to BBB. Purpose To evaluate relationship migraine-associated brain regions using DCE MRI. Materials Methods In this prospective study, from...
To conduct a simulation study to determine whether artificial intelligence (AI)-aided mammography reading can reduce unnecessary recalls while maintaining cancer detection ability in women recalled after screening.A retrospective reader was performed by screening mammographies of 793 (mean age ± standard deviation, 50 9 years) obtain supplemental mammographic views regarding mammography-detected abnormalities between January 2016 and December 2019 at two centers. Initial examinations were...
The adipose tissue-derived stromal vascular fraction (SVF) is an ideal source of stem and cells. aim this study was to examine whether how xenogenic transplantation human breast SVF restores erectile function in diabetic mice. Human isolated from five patients (age, 20–45 yr) undergoing reduction mammoplasty. Eight-week-old C57BL/6J mice were used, diabetes induced by intraperitoneal injection streptozotocin. At 8 wk after induction diabetes, the animals randomly distributed into controls...
To prospectively evaluate the incidence of nausea and vomiting after exposure to non-ionic iodinated contrast media (ICM), identify potential risk factors, with a focus on fasting duration for solid food fluids, separately.From January March 2017, 1175 patients (605 males, 570 females; median age, 60 years; range, 20-91 years) undergoing ICM-enhanced CT were included in this study. Patients received instructions 6 h preparatory fast from food. Nausea ICM assessed 3-point scale (mild,...
Flexible electronics has attracted considerable attention owing to its enormous potential for practical applications in various fields. However, the massive strain produced during bending degrades device. Especially at grain boundaries, due accumulation of defects, this degradation is exacerbated flexible electronic devices. The importance electrically inactivated boundaries increases as devices scale down nanoscale. Here, we propose an HfO
To investigate whether reader training improves the performance and agreement of radiologists in interpreting unenhanced breast magnetic resonance imaging (MRI) scans using diffusion-weighted (DWI).