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원태영,김승우,강보승,임태호,Won Tae Young,Kim Seung Woo,Kang Bo Seung,Im Tai Ho 대한임상독성학회 2004 대한임상독성학회지 Vol.2 No.2
Laundery detergent ingestions are generally considered to have minor consequences. But some detergent ingestions have severe consequences. Unlike household bleaches contain sodium hypochlorite, bleaching agents that contain sodium carbonate have the potential to cause significant mucosal damage to the gastrointestinal tract if ingested. Especially, when ingested in solid form of Sodium carbonate, corrosive injury is much heavier. Therefore, patient who ingest sodium carbonate peroxyhydrate need more intensive management than patient who ingest other bleaches. We experienced a case of serious caustic injury after ingestion of Sodium Carbonate Peroxyhydrate. We report this case with review of literature.
원태영(Won Tae Young),이창석(Lee Chang Suck) 한국부동산학회 2009 不動産學報 Vol.38 No.-
1. CONTENTS (1) RESEARCH OBJECTIVE This study aims at establishing the concept of growth-management style urban regeneration for urban regeneration through the urban growth management under vigor discussion in advanced countries, and making basic strategies and plan factors. (2) RESEARCH METHOD The study way is to examine theories and president studies related to urban generation through existing literature investigation, professional books, and study reports. (3) RESEARCH FINDING In the results of this survey, Under the examination, this study suggests conceptual definition and theoretical bases under utilization in this study 2. RESULTS This study focuses on building a concept of growth-oriented City Resuscitation adopting the Urban Growth Management, a system currently under vigorous discussions, for Urban Regeneration and drawing out the fundamental strategies and planning factors of this system, in light that there is a dominant recognition that it is essential to reinvigorate the center of the city in terms of spacial, structural and functional dimensions in order to facilitate the sustainable city development in the future. This study explored a new type of Partnership between Private-Public Sectors were both parties are allowed to cooperate to foster a more accommodating environment of an urban district.
원태영(Won, Tae Young),윤준선(Yoon, Jun Sun),이창석(Lee, Chang Suck) 한국부동산학회 2010 不動産學報 Vol.42 No.-
1. CONTENTS (1) RESEARCH OBJECTIVES Urban regeneration is a progress to improve physical environments as well as environmental, economic, and social aspects of degenerated urban regions, to recover inactive function, and at the same time to recreate into competitive residential environments. More than 70% of hothouse gas are exhausted in urban regions. For the purpose of lessening hothouse gas and coping with changing weather, it is necessary to construct and promote low-carbon green urban regions with green energy. It is urgent to grasp problems and improvement to put into a triangular position models for developing low-carbon green urban regions through multi-angled examination. This study is aimed at examining the basis of a way to distribute new-material energy through urban region regeneration. (2) RESEARCH METHOD As a way to attain the aim, this study put into triangular position the conception of urban regeneration and newly recycled energy and examined the national as well as international status. In addition, this study investigated the possibility to distribute low carbon in urban regions through the cases of sunlight plant and small water-power plants. (3) RESEARCH FINDINGS It is necessary to approach low-carbon green urban regions theoretically as well as technologically. But, it has a weak point; it needs a lot of cost for investment in facility, because technology related with land and energy is not sufficient. It is possible to generate and distribute clean urban regions by removing the factor. 2. RESULTS Our country is dependent on importation of more than 97% to secure energy. So our country is very weak in energy security and on the7th rank in the world as a hothouse gas exhaustion country. It is possible very much for our country to be included in an obligatory country to lessen hothouse gas. In the status, it is necessary to expand the conception of consultation for environmental preservation and economic growth and to approach wide-conception including qualitative development of economy and society and value of green.
실리카(SiO₂)입자의 유입량에 따른 고무ㆍ씨일부품의 마멸특성 평가 및 메커니즘 분석
원태영(Taeyeong Won),박세민(Semin Park),이영제(YoungZe Lee),김기훈(Gi-Hoon kim),김대성(Daesung Kim) 한국트라이볼로지학회 2009 한국트라이볼로지학회 학술대회 Vol.2009 No.6
The chassis system of the mobile components is weakened by the inflow of dust particles. The inflow of dust particle weakens the durability of automobile’s components and also weakens the driving ability by increasing wear and friction in the rubber-seal components among the chassis systems. In this study wear characteristics and mechanism analysis of rubber-seal for the inflow of dust particles were investigated using the sliding wear tester. The tester is a type of ball-on-disk ; ball is a steel, disk is a rubber-seal. and We used five kinds of the amount of SiO₂ particles 0g, 0.5g, 1g, 1.5g, 2g 2.5g in water, because SiO₂ particle is a main ingredient of dust.
실리카(SiO₂)와 알루미나(Al₂O₃)입자에 대한 고무ㆍ씨일부품의 마찰ㆍ마멸특성
원태영(Taeyeong Won),정순오(Soonoh Chung),이영제(Youngze Lee),김기훈(Gi-Hoon kim),김대성(Daesung Kim) 한국트라이볼로지학회 2008 한국트라이볼로지학회 학술대회 Vol.2008 No.11
The chassis system of the mobile components is weakened by the inflow of dust particles. The inflow of dust particle weakens the durability of automobile's components and also weakens the driving ability by increasing wear and friction. in the rubber-seal components among the chassis systems, the inflow of the dust particle increases the wear and friction. Therefore those make the noise and have a bad influence on the mobile system. In this study friction and wear characteristics of rubber-seal for the inflow of dust particles were investigated using the sliding wear tester. The tester is a type of ball-on-disk ; ball is a steel, disk is a rubber-seal. and We use a SiO₂ and Al₂O₃ particles, because SiO₂ particle is a main ingredient and Al₂O₃ particle is second ingredient of dust.
원태영(Won, Tae Young) 한국부동산학회 2009 不動産學報 Vol.36 No.-
1.CONTENTS (1) RESEARCH OBJECTIVES This study aims at investigating, through theories, real estate price and type changes according to city growth and at looking into how much development profits are output by analyzing correlative relation between city growth and real estate price. (2) RESEARCH METHOD The applied ways are to examine precedent studies through existing literatures and to look into the relation between city growth and real estate. (3) RESEARCH FINDINGS The study leads to the result that city space expansion has to be come true through developing existing city areas, and that the space effectiveness has to be optimized through linking functionally and unifying areas. 2. RESULTS It was found, in the course of city growth, that city inner-structure formation has a lot of influence on real estate price. First, in the future, city policies have to be changed from centrifugal city space expansion to centripetal city space re-structure. Second, in city development, effective space utilization has to be considered on mostly through restructuring existing city areas. Third, cities have not to be divided into spaces in connection with functional specification or functional major. In addition, city spaces have be harmonious with functional linkage or functional unification between old city areas and new city areas. Fourth, service spaces have to be supplied to assist economic city activities. 3. Key Words City Growth, Real Estate Price, development profits, analyzing correlative relation
박일수,원태영,Park Il-Soo,Won Taeyoung 대한전자공학회 2005 電子工學會論文誌-SD (Semiconductor and devices) Vol.42 No.3
[ $Si_{1-x}Ge_x$ ] 위의 Si 반전층에서의 이동도를 반전층에서의 양자현상(버금띠 에너지와 파동함수)과 완화시간어림셈을 고려하여 계산하였다. 반전층에서의 양자현상은 슈뢰딩거 방정식과 포아슨 방정식을 자체 모순없이 계산하여 얻었다 완화시간은 밸리내 산란과 밸리사이 산란을 고려하여 계산하였다. 그 결과 Ge 함량이 증가됨에 따라 이동도가 증가되는 이유는 4-폴드 밸리에 존재하는 전자의 이동도보다 2-폴드 밸리에 존재하는 전자의 이동도가 약 3배 정도 크며 대부분의 전자가 밸리의 분리에 의해 2-폴드 밸리에 존재하기 때문이라는 것을 알 수 있었다. 한편, 포논 산란만을 고려한 이동도를 실험치와 일치시키기 위하여 전체 이동도에는 반전층 계면에서의 산란과 쿨롱 산란을 포함시켰다. 계산된 전계, 온도, 그리고 Ge 함량에 의존하는 이동도는 실험치와 근접하도록 변형포텐셜을 설정하였으며 정확한 결과를 위해서는 Si 에너지띠의 비포물성을 고려해야함을 확인하였다. The mobility in strained Si inversion layer on $Si_{1-x}Ge_x$ is calculated considering a quantum effect(subband energy and wavefunction) in inversion layer and relaxation time approximation. The quantum effect in inversion layer is obtained by using self-consistent calculation of $Schr\ddot{o}dinger$ and Poisson equations. For the relaxation time, intravalley and intervalley scatterings are considered. The result shows that the reason for the enhancement in mobility as Ge mole fraction increases is that the electron mobility in 2-폴드 valleys is about 3 times higher than that of 4-폴드 valleys and most electrons are located in 2-폴드 valleys as Ge mole fraction increases. Meanwhile, for the phonon-limited mobility the fitting to experimental data, Coulomb and surface roughness mobilities are included in total mobility, Deformation potentials are selected for the calculated effective field, temperature, and Ge mole fraction dependent mobilities to be fitted to experimental data, and then upgraded data can be obtained by considering nonparabolicity in Si band structure.
중앙-채널 이중게이트 MOSFET의 양자역학적 모델링 및 시뮬레이션 연구
김기동,원태영,Kim, Ki-Dong,Won, Tae-Young 대한전자공학회 2005 電子工學會論文誌-SD (Semiconductor and devices) Vol.42 No.7
본 논문에서는 결합된 슈뢰딩거-푸아송 방정식과 전류연속방정식을 셀프-컨시스턴트하게 계산함으로써, 나노-스케일 center-channel (CC) double-gate (DG) MOSFET 디바이스의 전기적 특성 및 구조해석에 관한 연구를 시행하였다. 10-80 nm 게이트 길이의 조건에서 수행한 CC-NMOS의 시뮬레이션 결과를 DG-NMOS 구조에서 시행한 시뮬레이션 결과와의 비교를 통하여 CC-NMOS 구조에서 나타나는 CC 동작특성 메커니즘과, 이로 인한 전류 및 G$_{m}$의 상승을 확인하였다. 문턱 전압 이하 기울기, 문턱 전압 롤-오프, 드레인 유기 장벽 감소의 파라미터를 통하여 단채널 효과를 최소화하기 위한 디바이스 최적화를 수행하였다. 본 나노-스케일 전계 효과 트랜지스터를 위한 2차원 양자역학적 수치해석의 관한 연구를 통하여, CC-NMOS를 포함한 DG-MOSFET 구조가 40나노미터급 이하 MOSFET 소자의 물리적 한계를 극복하기 위한 이상적인 구조이며, 이와 같은 나노-스케일 소자의 해석에 있어서 양자역학적 모델링 및 시뮬레이션이 필수적임을 알 수 있었다. The device performance of nano-scale center-channel (CC) double-gate (DG) MOSFET structure was investigated by numerically solving coupled Schr$\"{o}$dinger-Poisson and current continuity equations in a self-consistent manner. The CC operation and corresponding enhancement of current drive and transconductance of CC-NMOS are confirmed by comparing with the results of DG-NMOS which are performed under the condition of 10-80 nm gate length. Device optimization was theoretically performed in order to minimize the short-channel effects in terms of subthreshold swing, threshold voltage roll-off, and drain-induced barrier lowering. The simulation results indicate that DG-MOSFET structure including CC-NMOS is a promising candidates and quantum-mechanical modeling and simulation calculating the coupled Schr$\"{o}$dinger-Poisson and current continuity equations self-consistently are necessary for the application to sub-40 nm MOSFET technology.
4분의 1 파장 단락 스터브 방식 서지 어레스터의 잔여 전압 제거에 관한 연구
김연태,원태영,Kim, Yeon-Tae,Won, Tae-Yeong 대한전자공학회 2000 電子工學會論文誌-TC (Telecommunications) Vol.37 No.8
고전압 전류 특성의 낙뢰는 안테나를 통해 지상에 설치된 이동 통신 기지국으로 도입될 수 있으며, 이를 방지하기 위한 장치가 서지 어레스터이다. 본 논문에서는 서지 어레스터의 개념, 종류, 동작 원리, 설계 및 제작 등을 검토하고, 이를 기반으로 현재 국내외에서 이용되고 있는 이동 통신 서비스인 셀룰라, GSM 및 PCS 등과 차세대 이동 통신 서비스인 IMT-2000의 기지국에 적용 가능한 서지 어레스터들을 설계하였다. 초기 설계된 서지 어레스터들은 고주파 3차원 구조 시뮬레이터 상에서 특성 예측을 위한 컴퓨터 모의 실험과 서지 어레스터의 전자기적 특성 개선을 위한 내부 구조 최적화 작업이 수행되었다. 서지 어레스터의 최종 설계도를 기반으로 실제 IMT-2000 기지국용 4분의 1 파장 단락 스터브 방식의 서지 어레스터를 제작하였으며, 전자기적 전송 특성 측정과 낙뢰 전달 테스트를 수행하여 제작된 서지 어레스터의 성능을 측정하였다. 측정 결과, 전압 정재파 비는 1.05 이하, 삽입 손실은 -0.035 dB이하, 상호변조 특성은 -150 dBc 이하의 특성을 얻었으며, 잔여 전압 특성은 7∼ll V 정도의 특성을 보였다. The lightning with high voltage and current can enter the basestations for mobile communication through their antenna. The device which can protect the basestation against the lightning, is surge arrestor. In this paper, the concept, kind, operating mechanism, design and fabrication of surge arrestor were studied. Based on the studied data, variable surge arrestors were designed for the current mobile communication service like a cellular, GSM and PCS and the next generation mobile communication like a IMT-2000. Computer simulation for the prediction of their characteristics and inner structure optimization for the improvement of their electrical characteristics were carried with high frequency 3D structure simulator. Quarter wave short stub surge arrestors for IMT-2000 were fabricated with their final design and then the measurement of electrical characteristics and the lightning test were executed. As a results of measurement, we obtained below 1.05 of VSWR, -0.035 dB of insertion loss, -150 dBc of intermodulation and 7∼ll V of residual voltage.
韓聲鎭,元太映 동아대학교 공과대학 부설 한국자원개발연구소 1985 硏究報告 Vol.9 No.2
This paper deals with the magnetostatic field problem via B. E. M A 2-D Z-directional symmetry model which has the current source with the rectangular area is assumed to calculate the vector potential. To examine the accuracy, the B E M solution is compared with the F E M solution showing excellent agreement.