• Title/Summary/Keyword: Seong-Ho School

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Astrocytoma in the Third Ventricle and Hypothalamus Presenting with Parkinsonism

  • Choi, Kang-Ho;Choi, Seong-Min;Nam, Tai-Seung;Lee, Min-Cheol
    • Journal of Korean Neurosurgical Society
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    • v.51 no.3
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    • pp.144-146
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    • 2012
  • Parkinsonism secondary to intracranial mass lesions usually results from compression or distortion of the basal ganglia. Secondary parkinsonism due to midbrain infiltration or compression is rare and generally associated with other neurologic signs caused by pyramidal tract and/or cranial nerve involvement. We report a case of 30-year-old woman in whom mild parkinsonism was the major clinical manifestation of an astrocytoma in the anterior third ventricle and hypothalamus. She underwent surgical resection, ventriculoperitoneal shunt and radiation therapy. All symptoms of parkinsonism were completely recovered 3 months after the treatment. Brain tumors can be manifested only by the symptoms of parkinsonism. This case emphasizes the significance of neuroimaging in the evaluation of parkinsonism.

The Korean Precipitation Particle Distribution Model for Environmental Test & Evaluation (환경시험평가를 위한 한국의 강수입자 분포 모델 연구)

  • Mun, Gwan Ho;Hong, Yun Ky;Oh, Seong Nam;Kim, Tae Min
    • Journal of the Korea Institute of Military Science and Technology
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    • v.19 no.4
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    • pp.536-544
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    • 2016
  • The study on the precipitation particle distribution models in Korea for the environmental test and evaluation (T&E) from huge amount of measuring and reanalysis data is presented. Instead of related specifications of MIL-HDBK-310, with these models it can be possible to realize more realistic and efficient design and environmental T&E for the military and civil products especially for the atmospheric flying vehicles using in Korea.

Sources and Behaviors of Nitrate and Sulfate in Riverside Alluvial Aquifer

  • Choi Byoung-Young;Yun Seong-Taek;Kim Kyoung-Ho;Kim Kang-Joo
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2005.10a
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    • pp.271-273
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    • 2005
  • The ${\delta}^{15}N\;and\;{\delta}^{15}O$ data of nitrate indicates the sources of nitrate in oxic groundwater as a mixture of ammonia or urea-containing fertilizer and manure. The ${\delta}^{34}S_{sulfate}$ values indicate that sulfate Is mainly originated from fertilizers and soil S. In sub-oxic groundwater, the increased ${\delta}^{34}S_{sulfate}$ values evidently indicate that sulfate is gradually removed by microbial mediated sulfate reduction. However, iron reduction does not occur In this study area. Such a reversed redox sequence may occur In the presence of stable iron oxides such as hematite and goethite in alluvlal aquifer.

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Pulsed-Field Gel Electrophoresis-Based Molecular Typing Reveals a Shift in the Major Type of Vibrio cholerae O1 Isolated in Korea

  • Kim, Seong-Han;Kim, Jun-Young;Kang, Yeon-Ho;Park, Yong-Keun;Lee, Bok-Kwon
    • Journal of Microbiology and Biotechnology
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    • v.16 no.11
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    • pp.1814-1818
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    • 2006
  • Vibrio cholerae O1 El Tor isolates (n=242), collected in Korea between 1991 and 2002, were classified by NotI-digested pulsed-field gel electrophoresis (PFGE). The major types were Al before 1998 and B after 1999, among both domestic and imported cases. The prevalent PFGE types among domestic cases were consistent with the prevalent types among imported cases in the same year. These results suggest a close relationship between the domestic and imported cases of cholera in Korea.

Region Segmentation based on Generating Boundary between Object using Focus of image (이미지 초점을 이용한 객체 간 경계 생성 기반의 영역 분할 기법)

  • Han, Hyeon-Ho;Hong, Yeong-Pyo;Lee, Gang-Seong;Lee, Sang-Hun
    • Proceedings of the KAIS Fall Conference
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    • 2012.05b
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    • pp.531-534
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    • 2012
  • 본 논문에서는 Active Contour 기반의 영역 분할에서 이미지의 초점값을 이용하여 분할된 영역 사이의 경계를 생성하여 기존의 Active Contour에서 발생할 수 있는 중첩 객체의 동일 객체 인식을 방지하는 기법을 제안한다. Active Contour는 영상에서 객체의 윤곽을 검출하여 윤곽을 기준으로 영상을 분할하지만 중첩되거나 근접한 객체에서의 분할이 정확하게 이루어지지 않아 동일 객체로 인식하는 단점이 있다. 이러한 객체에서의 분할을 위해 영상의 초점값을 이용하여 영상 내에 존재하는 객체의 유사 경계 영역을 생성하고 Active Contour의 결과에 적용하여 경계를 생성한 뒤 초점값 적용으로 인해 생성될 수 있는 홀 영역을 hole filling 과정을 수행하여 보완함으로써 보다 정확한 객체를 추출하였다.

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Design and Implementation of Database Integration Middleware Supporting Wireless Environments (무선 환경을 지원하는 데이터베이스 통합 미들웨어 설계 및 구현)

  • Lee, Sang-Yun;Seong, Jun-Ho;Lee, Mi-Young;Kim, Myung-Joon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2002.11c
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    • pp.1697-1700
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    • 2002
  • 이질적인 정보 저장소를 통합하여 질의하고 검색하는 시스템들에 대한 연구가 최근 들어 XML을 기반으로 활발히 연구되고 있다. 본 논문에서는 XML 에 기반한 DB 통합 미들웨어로서 DataBlender 시스템을 소개하고 이 시스템의 한 블록으로서 무선 환경을 지원하기 위해 개발된 DataBlender.s 의 설계 및 구현에 관해 기술한다. DataBlender.s 는 동기화의 표준 언어인 SyncML 1.0을 기반으로 개발되었으며 본 논문에서는 DataBlender.s 의 모듈 구조, 타 모듈과의 연동, 동기화 처리 과정, 동기화 정보 관리 등을 기술한다.

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Evaluation of Passive Cooling Effect on Roof Pond through Field Observation (관측에 의한 옥상 수공간의 자연냉각효과 평가)

  • Jeong, Seong-Jin;Choi, Dong-Ho;Lee, Bu-Yong
    • 한국태양에너지학회:학술대회논문집
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    • 2008.11a
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    • pp.85-89
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    • 2008
  • This study carried out field observations of measuring thermal environment, especially evaluating amount of water evaporation at roof Pond by field observations during the summer. Thermal environment measuring was categorized as air temperature, water temperature of roof pond, surface temperature, globe temperature, short and long wave radiation, net radiation, and amount of water evaporation by water level measurement. Results from this study could be used as fundamental for reducing heat Island phenomena.

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Spectroscopy of Globular Clusters in the Core of the Virgo Cluster

  • Ko, Youkyung;Hwang, Ho Seong;Lee, Myung Gyoon;Sohn, Jubee;Lim, Sungsoon;Park, Hong Soo
    • The Bulletin of The Korean Astronomical Society
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    • v.39 no.2
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    • pp.51.1-51.1
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    • 2014
  • The Virgo cluster, the nearest galaxy cluster, is dynamically young, hosting numerous globular clusters in galaxies as well as intracluster globular clusters (IGCs). We obtained spectra of globular cluster candidates in the core region of the Virgo cluster using Hectospec at MMT to study the kinematics of the globular clusters. The targets are located at a large range (50 kpc < d < 500 kpc) from M87, the most massive galaxy in Virgo. We distinguish the genuine globular cluster population in the targets by inspecting their spectral features and radial velocities. As a result, a significant number of IGCs are found. We present preliminary results of the kinematics of globular clusters in the Virgo core region.

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Design of Human Works Model for Gantry Crane System

  • Kim, Hwan-Seong;Tran, Hoang-Son;Kim, Seoung-Ho
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2004.08a
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    • pp.102-112
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    • 2004
  • In this paper, we propose a human model for analysis for human work pattern or human fault, where a gantry crane simulator is used to survey the property of human operation. From the input and output of gantry crane response, we make a human operation model by using conventional ARX identification method. For identify the human model, we assume the eight inputs and two outputs. By using the input/output data, we estimate the parameters of ARX of the human system model. For verify the proposed method, we compared the real data with the modeled data, where three kinds of work trajectory path are used.

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