• 제목/요약/키워드: Hanyang Park

검색결과 5,078건 처리시간 0.041초

병렬 디지털신호처리시스템의 설계와 성능분석 (Design and Performance Analysis of A Parallel Digtal Signal Processing System)

  • 문병표;박준석;오대식;전창호;박성주;이동호;오원천;한기택
    • 한국정보과학회:학술대회논문집
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    • 한국정보과학회 1998년도 가을 학술발표논문집 Vol.25 No.2 (3)
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    • pp.724-726
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    • 1998
  • 본 논문에서는 방대한 양의 데이터를 실시간으로 처리하기 위한 병렬 디지털 신호처리시스템을 제안한다. 버스와 메모리의 구조가 다른 네 가지 신호처리부 모델을 제안하고 그들의 성능을 분석한다. 신호처리부의 분석은 소나 알고리즘을 실행하는데 소요되는 하드웨어 지연시간과 버스 지연시간의 합을 척도로 한 성능 분석과 보드의 복잡도를 비교하는 방법을 통하여 이루어졌다. 성능분석한 결과, 지역 메모리와 공유 메모리를 함께 사용하는 모델이 가장 효율적인 것으로 나타났다.

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Development of Discriminant Model of PIH Pregnant using Decision Tree

  • 박영선;최항석;이용균;차경준;이성훈;박문일
    • 한국데이터정보과학회:학술대회논문집
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    • 한국데이터정보과학회 2004년도 춘계학술대회
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    • pp.141-149
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    • 2004
  • The various methods have been studied to develop discriminant model for Pregnancy Induced Hypertension(PIH) as high risk pregnant. In this study, we adapt the approximate entropy which is the non-linear chaotic measuring method. Then, we develop the system to discriminant PIH pregnant using QUEST with S-PLUS.

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Development of Diagnostic System for FHR Monitering by Using Neural Networks

  • Cha Kyung-Joon;Park Moon-Il;Oh Jae-Eung;Han Hyun-Ju;Lee Hae-Jin;Park Young-Sun
    • Communications for Statistical Applications and Methods
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    • 제13권1호
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    • pp.73-88
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    • 2006
  • In this paper, we construct data-base for fetal heart rate (FHR) data and develop the FHR Monitering system to diagnose fetus, HYFM-III. For diagnostic system, a few statistical decision making mechanism are adopted, such as approximate entropy, neural networks, and logistic discrimination. Since FHR data is very chaotic, we mostly adopt nonlinear statistical methods. On the basis of this system, we expect to develop expert system for early detection of abnormal fetus.

계층적 논리 회로의 시뮬레이션 (Simulation for hierarchical logic network)

  • 이홍주;허용민;이주희;박홍준;박동규;임인칠
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1988년도 전기.전자공학 학술대회 논문집
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    • pp.579-581
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    • 1988
  • This paper proposes the logic simulation for hierarchical logic network with function descriptor base data structure and algorithm on which a macro cell is considered as a logic elements. Function descriptor base data structure is useful when many logic elements of which type is same exist in a network, for it lessens the computer memory size used during the simulation. And the proposed simulation algorithm may improve the simulation speed.

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단상 SRM(Switched Reluctance Motor)의 고속 구동 제어에 관한 연구 (A Study on the control of High-Speed drive for Single Phase Switched Reluctance Motor)

  • 박희관;박재범;임승빈;최재학;안준선;이주
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.27-30
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    • 2004
  • In this paper, A fixed turn-on, variable turn-off control method considering the reference speed and load is shown with verification by using MATLAB Simulink. The proposed method uses simple operation and is suitable to the system of low-cost application and also advantageous for reducing the torque ripple.

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Pulmonary Foreign Body Granulomatosis in Dental Technician

  • Chung, Sung Jun;Koo, Gun Woo;Park, Dong Won;Kwak, Hyun Jung;Yhi, Ji Young;Moon, Ji-Yong;Kim, Sang-Heon;Sohn, Jang Won;Yoon, Ho Joo;Shin, Dong Ho;Park, Sung Soo;Pyo, Ju Yeon;Oh, Young-Ha;Kim, Tae-Hyung
    • Tuberculosis and Respiratory Diseases
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    • 제78권4호
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    • pp.445-449
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    • 2015
  • Occupational lung diseases are caused by several toxic substances including heavy metals; however, the exact pathologic mechanisms remain unknown. In the workplace, dental technicians are often exposed to heavy metals such as cobalt, nickel, or beryllium and occasionally develop occupational lung diseases. We described a case of occupational lung disease in a patient who was employed as a dental technician for over a decade. A 31-year-old, non-smoking woman presented with productive cough and shortness of breath of several weeks duration. Chest computed tomography revealed a large number of scattered, bilateral small pulmonary nodules throughout the lung field, and multiple mediastinal lymph nodes enlargement. Percutaneous needle biopsy showed multifocal small granulomas with foreign body type giant cells suggestive of heavy metals inhalation. The patient's condition improved on simple avoidance strategy for several months. This case highlighted the importance of proper workplace safety.

다양한 인체 장기에서 보일 수 있는 면역글로불린 G4 관련 질환: 임상화보 (Systemic Manifestations of Immunoglobulin G4-Related Disease: A Pictorial Essay)

  • 박경리;최요원;강보경;이지영;박정선;신수진;구혜령
    • 대한영상의학회지
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    • 제82권3호
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    • pp.575-588
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    • 2021
  • 면역글로불린 G4 (immunoglobulin G4; 이하 IgG4) 관련 질환은 특징적인 병리 소견을 동반한 섬유화를 일으키는 전신 염증성 질환이다. 영상검사는 IgG4 관련 질환의 진단 및 치료 반응 평가에 필수적이다. 본 임상화보는 IgG4 관련 질환의 다양한 임상 증례를 통해 영상 소견 및 감별진단을 제시함으로써 IgG4 관련 질환에 대한 이해의 폭을 넓히고자 한다.