A5056047360- Coastal and Marine Dynamics
- Ocean Waves and Remote Sensing
- Earthquake and Tsunami Effects
- earthquake and tectonic studies
- Geotechnical Engineering and Underground Structures
- Wave and Wind Energy Systems
- Methane Hydrates and Related Phenomena
- Tropical and Extratropical Cyclones Research
- Underwater Acoustics Research
- Aeolian processes and effects
- Advancements in Semiconductor Devices and Circuit Design
- Geotechnical Engineering and Soil Stabilization
- Geotechnical Engineering and Soil Mechanics
- Coastal wetland ecosystem dynamics
- Seismic Waves and Analysis
- Viral gastroenteritis research and epidemiology
- Radio Wave Propagation Studies
- Marine and Coastal Research
- Robotic Path Planning Algorithms
- Semiconductor materials and devices
- Geological formations and processes
- Animal Virus Infections Studies
- Electromagnetic Scattering and Analysis
- Veterinary medicine and infectious diseases
- Internet of Things and Social Network Interactions
Hanbat National University
2011-2022
Korea University
2018-2021
Sejong University
2012-2018
Chungnam National University
2011-2014
Hanyang University
2007-2009
Seoul National University
2002-2008
A PCR was used to determine the genotypic prevalence of five fimbrial adhesins (F4, F5, F6, F41 and F18), two heat‐stable enterotoxins (STa STh), heat‐labile enterotoxin (LT), shiga toxin 2e (Stx2e) in 230 isolates Escherichia coli from postweaning pigs with diarrhoea or oedema disease. Ninety‐four (40.9 per cent) carried genes for at least one toxins. Genes F18 adhesin were detected 18.3 cent, F4, F5 10.0 4.3 1.7 cent 0.8 isolates, respectively. STa, STb LT 25.7 15.2 8.7 Stx2e 36 (15.6...
Swine influenza virus (SIV) RNA and antigen were detected in 15 naturally infected pigs by situ hybridization using a nonradioactive digoxigenin-labeled cDNA probe immunohistochemistry an H1N1-specific monoclonal antibody. A 582-base pair for viral encoding the nucleocapsid protein of SIV type H1N1 strain was generated reverse transcription polymerase chain reaction. In gave similar results serial sections from each lung samples. Positive cells typically exhibited dark brown (in...
A complementary silicon bipolar process has been developed for high-performance analog applications. The features high-frequency PNP and NPN transistors with transition frequencies above 5 GHz 9 GHz, respectively. have a double polysilicon, self-aligned structure which is isolated by using bonded wafer silicon-on-insulator (SOI) technology vertical trenches. circuit components are interconnected two levels of metallization. UHF-1 used to create several advanced integrated circuits in...
In this study we develop a new extended Boussinesq model that predicts the propagation of water waves in porous media. The inertial and drag resistances are taken account into which results same with equations Madsen Sorensen (1992) when these removed. developed introduces its simplicity solving matching conditions at permeable breakwater interfaces. whole computational domain can be involved by specifying porosity equal to unity outside value below inside breakwater. There is no need for...
Offshore structures are occasionally located at a relatively deep water region, the outside of breakwater. In this case, these may be damaged by supposition incident and reflected waves from vertical To prevent damage, controlled installing porous face study, numerical experiments carried out to identify characteristics wave reflection in front or slit caisson.
Jung, T-H.; Son, S., and Ryu, Y. 2017. Finite element solution of linear waves on a sloping bottom boundary. A new, finite-element water waves, which can be applied to nonvertical boundary, is introduced in this study. The present regions the depth gradually approaches zero, such as coastlines. To obtain solution, entire domain divided into three subregions. In up-wave down-wave subregions, analytical solutions are used. middle region, occupies most computational domain, standard Galerkin...
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It has been an issue among researchers that the tsunamis occurred on west coast of Japan in 1983 and 1993 damaged coastal cities east Korea. In order to predict reduce damage Korean Peninsula effectively, it is necessary install offshore tsunami observation instruments as part system for early detection tsunamis. The purpose this study recommend optimal deployment terms higher probability with minimum equipment maximum evacuation warning time according current situation propose location...
Cohesive sediment has different characteristics compared to non-cohesive sediment. The density and size of a cohesive aggregate (a so-called, floc) continuously changes through the flocculation process. variation floc can cause change volumetric concentration under condition constant mass concentration. This study investigates how is affected by conditions such as flow velocity, water depth, suspension. A previously verified, one-dimensional vertical numerical model utilized here. process...
In this study, a new numerical modeling system was proposed to predict oil spills, which increasingly occur at sea as result of abnormal weather conditions such global warming. The hydrodynamic the flow velocity needed calculate dispersion were estimated using three dimensional model based on Navier-Stokes equation, considered all physical variations in vertical direction. This improved accuracy compared those by conventional shallow water equation. advection-diffusion for spilled combined...
ìê°ì°¨ë¥¼ ì§ë ë¨ì¸µíê´´ íëì ì§ì§í´ì¼ì ì´ê¸°íí ìì±ì ìí¥ì ë¼ì¹ë©°, ì´ë¡ ì¸í´ í´ìììì ì²ì¤ë¦ ëì´ìë ë³í를 ì¤ë¤. ì´ë¬í íëì´ ëì´ì 미ì¹ë ê²í í기 ìíì¬ ì¼ë³¸ ìí´ìì ë¤ìì ê°ì ë¨ì¸µí괴를 ê°ì íì¬ ìì¹ëª¨ì를 ìííìë¤. ìë¨ì¸µë¤ì´ í´ìì ì íííê² ìì¹í ê²½ì°ìë ë¨ì¸µíê´´ê° ìí¥ì 미미íì¼ë, ìì§ì¼ë¡ ìì¹í´ ìë ì´ê¸°ííì ì¤ì²©...
A tsunami is a significant coastal hazard that causes destructive damage to cities in the world. Besides, tsunamis, generated on west coast of Japan, damaged east Korea 1983 and 1993. In recent years, there has been increasing interest potential zone near Japan. Therefore, it important have observation instruments proper locations for detection warning aspect. This study proposes optimal region offshore instrument deployment under limited condition source out territorial sea by investigating...
This paper presents the development and control of a two-wheel mobile robot to perform line tracking task. The robot(TWMR) is designed controlled follow on floor while maintaining balance. captured by camera image processing performed in notebook. desired trajectory information detecting extracted provided controller for follow. Then TWMR commanded line. Experimental studies following circular random are conducted confirm performance.