A5065823503- Traffic Prediction and Management Techniques
- Traffic and Road Safety
- Adsorption, diffusion, and thermodynamic properties of materials
- Geophysical Methods and Applications
- Chemical Thermodynamics and Molecular Structure
- Injury Epidemiology and Prevention
- Cardiac Ischemia and Reperfusion
- Infrastructure Maintenance and Monitoring
- Advanced Wireless Network Optimization
- Forensic Entomology and Diptera Studies
- Advanced Materials and Mechanics
- Multiferroics and related materials
- Thermal and Kinetic Analysis
- Phase Equilibria and Thermodynamics
- Thin-Film Transistor Technologies
- Bacillus and Francisella bacterial research
- Organic Light-Emitting Diodes Research
- Fire dynamics and safety research
- Human-Automation Interaction and Safety
- Nitric Oxide and Endothelin Effects
- Fire effects on concrete materials
- Vehicle emissions and performance
- Asphalt Pavement Performance Evaluation
- Identification and Quantification in Food
- Magnetic properties of thin films
Korea Institute of Civil Engineering and Building Technology
2021-2024
Samsung (South Korea)
2014-2023
University of Washington
2021
University of Ulsan
2015
Middle Tennessee State University
2015
Korea Advanced Institute of Science and Technology
2011
Inje University
2006
Abstract We used proteomics to detect regional differences in protein expression levels from mitochondrial fractions of control, ischemia–reperfusion (IR), and ischemic preconditioned (IPC) rabbit hearts. Using 2‐DE, we identified 25 proteins that were differentially expressed the IR heart compared with control IPC For three spots, patterns confirmed by Western blotting analysis. These included 3‐hydroxybutyrate dehydrogenase, prohibitin, 2‐oxoglutarate adenosine triphosphate synthases,...
Nitric oxide (NO) plays an important role in anoxic preconditioning to protect the heart against ischemia-reperfusion injuries. The present work was performed study better NO-cGMP-protein kinase G (PKG) signaling pathway activation of both sarcolemmal and mitochondrial ATP-sensitive K+ (KATP) channels during (APC) final influence on reducing anoxia-reperfusion (A/R)-induced cardiac damage rat hearts. upstream regulating elements controlling NO-cGMP-PKG signal-induced KATP channel opening...
Abstract Origami, the ancient art of paper folding, has shown its potential as a versatile platform to design various reconfigurable structures. The designs most origami-inspired architected materials rely on periodic arrangement identical unit cells repeated throughout whole system. It is challenging alter once fixed, which may limit nature origami-based Inspired by phase transformations in natural materials, here we study origami tessellations that can transform between homogeneous...
With growing social concern on pedestrian accidents involving children, the Korean government announced a plan to decrease number of child deaths due traffic by 2026. Therefore, policymakers should consider various measures for school zones because safe walkway is essential preventing around schools. Some parts roads within radius 300 m from elementary and kindergarten entrances are designated as zones. Certain experience frequent zone, while others outside zone. Hence, this study aimed...
The use of an inconsistent speed limit determination method can cause low compliance. Therefore, we developed objective methodology based on engineering judgment considering the traffic accident rate in road sections, degree roadside development, and geometric characteristics sections urban roads. scope this study is one-way roads with two or more lanes cities, appropriate were selected among all Seoul. These have limits statutory maximum 80 km/h lower are characterized by various speeds...
The run-off road crash (RORC) is a representative type of lethal crash. severity RORC has increased owing to combination factors, such as roadside geometry, traffic conditions, and weather/climatic conditions. In this study, model for estimating the was developed based on various including fixed objects, roadway environment. To develop model, accident data crashes with objects highways, well information object-related variables geometry-related variables, were collected. improve in terms...
We have developed high throughput and scalable space divided atomic layer deposition (ALD) system for thin filmencapsulation (TFE) of flexible OLEDs display. In this paper, we report moisture barrier properties Al 2 O 3 films deposited by our new (70 Å/min) spatial ALD with 2G glass substrate size (370 × 470 mm ). The WVTR on could achieve ∼10 −5 g/m ‐day under tritium test.
Advanced driver-assistance systems (ADAS) are primarily known for their positive impact in improving the safety of drivers. Previous studies analyzed effects ADAS with short-term experiments and accident data without considering long-term changes drivers’ perception. The human factor is most dominant among factors that cause traffic accidents, effect evaluation should be performed errors. To this end, study classified ADAS-forward collision warning (FCW) on taxi drivers Seoul into behavioral...
최근 우리나라는 배달을 이용한 외식업문화가 대중화되었으며, 모바일 배달앱의 개발과 COVID-19로 인해 배달수요가 2020년에 2019년 대비 698% 증가하였다. Door to 서비스를 지향하는 소비자들의 요구에 맞춰 인구밀집지역에서 이륜차를 배달통행이 더불어 증가하고 있으나, 이륜차 통행관련 교통사고 예방대책은 개선이 미흡하다. 특히 사유지인 아파트 내 도로는 교통관련 법령의 사각지대로 사고예방에 취약한 상황이다. 이에 본 연구에서는 지난 5년간(2015~2019년) 경찰청 및 보험사 교통사고자료를 기반으로, 배달이륜자동차 사고특성을 분석하였다. 운전자의 신호위반 사고가 60%, 중앙선 침범 16%로 법규위반원인이 높았으며, 30세 미만의 운전자가 74.4%로 대다수로 나타났다. 세부원인 분석을 위해 통행실태를 영상기반의 TCA(Traffic Conflict Analysis)를 실시하였으며, 보행로 차단시설이 없는 단지의 경우 TC(Traffic Conflict) 비율이...
We proposed a scheme to improve the lifetime of multi-camera system and quality its captured image by appropriate sharing such resources among camera nodes as battery memory based on low-power wireless communication links nodes. The determines which node captures event stores jointly considering residual charge, remaining space, overhead, each node. Experimental result has shown that achieves up 4x extension well 43.19% improvement (as measured face detection rate) compared conventional method [12].
Isokinetic strength test is the measurement of force-velocity or torque angle. knee extensor and flexor muscles often assessed using an isokinetic dynamometer such as Cybex system. Question remains concerning reliability muscle measurements. PURPOSE: The purpose this study was to establish minimum number trials required assess reliable estimates measurements METHODS: A total 70 adults (mean age 19.38 ± 3.32 years; 35 males females each) completed tests Concentric strengths were measured at...
콘크리트 구조물에 화재 발생할 시 구조물 내부의 온도가 최고 <TEX>$1400^{\circ}C$</TEX>까지 이르러 콘크리트의 특성상 폭렬현상이 수 있으며, 주철근의 높아져 구조적 안정성 및 내구성 저하 등의 치명적인 피해가 있다. 본 연구에서는 실리콘 화합물을 베이스로 하여 난연제를 첨가한 내화보드를 이용하여 발생 구조물의 내구성, 내화성능 확보의 가능성을 확인하고자 하였다. 이를 위해 화합물에 ATH, MDH, MC의 25~40 wt%까지의 중량비 변화를 주어 제작한 시험편으로 열 특성 분석 분석을 수행하였다. 그 결과 내화보드로써 적용 안정성, 내화성능의 확보가 가능함을 확인 할 있었다. The internal temperature of the structure during a fire in concrete reaches up to <TEX>$1400^{\circ}C$</TEX>. characteristic is likely cause explosion...
The surface energy strongly influences the stability and uniformity of nanoparticles in a dispersion, which has significant impact on rheology, morphology, microstructure both dispersion structures derived from it. Here, we utilized inverse gas chromatography (IGC) to probe variation characteristics BaTiO3 course coating with model dispersant, stearic acid (SA) at various coverage. Complementary methods including thermogravimetric analysis-gas mass spectrometry diffuse reflectance infrared...
Anti-scatter grids are routinely used to prevent degradation of image quality caused by scattered X-ray beams. However, these might cause linear artifacts that represent the shadows radiopaque septa. In this paper, we propose a machine learning-based method for grid artifact suppression in radiography. There two major difficulties application deep learning technique grid-line problem. The first is quantitative shortage data. It difficult acquire sufficient amount data from observed images...