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- 저자 : 조수연(Suyeon Cho) (검색결과 39 건)
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조수연(SuYeon Cho),김일곤(Ilkon Kim),조훈(Hune Cho),곽연식(YunSik Kwak) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.2Ⅱ
환자 진료 의뢰 과정은 1차 진료기관에서 3차 진료기관으로 환자 진료를 의뢰하고 3차 진료기관에서 검사, 처방, 입원 등의 진료행위를 하고 환자가 3차 병원을 나갈 때 퇴원요약정보를 1차 진료기관으로 다시 보내준다. 이러한 퇴원 요약 시스템은 병원간 환자 정보의 공유를 통해서 환자의 회복과 질 높은 의료 서비스를 제공할 수 있게 한다. 방사선과 정보가 다른 퇴원 요약 정보와 함께 제공된다면 지속적이고 일관된 의료 서비스의 제공에 도움이 된다. 또한 방사선과의 경우 3차 진료기관에서 이미지를 획득할 수 없는 경우, 이미지 획득 장비를 갖춘 1차 진료기관으로 진료 의뢰를 해야 하는 특수한 상황도 발생하는데, 이를 역진료의뢰라고 한다. 우리는 이러한 방사선과의 특성을 함께 고려한 방사선과 정보를 지원하는 퇴원정보요약시스템을 제안한다.
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Deep Learning based Automation of Structure Design for information extraction and analysis
Suyeon Cho(조수연),Elbasani Ermal(엘바사니 엘말),Beomsoo Jang(장범수),Seunghye Lee(이승혜),Jaewook Lee(이재욱),Jaehong Lee(이재홍) 대한건축학회 2024 대한건축학회 학술발표대회 논문집 Vol.44 No.2
As the complexity of modern architectural increases, manual review of architectural drawings has become a time-consuming process. To address this, this study proposes an automated method for the recognition and analysis of structural drawings using YOLO (You Only Look Once) platform. This study focuses on the segmentation and detection of key structural components such as columns girder, beam and wall within architectural drawings. By training a YOLO model on a dataset of structural images, this study achieves high accuracy in identifying structural elements. Numerical results demonstrate that deep learning-based automation offers a reliable and efficient alternative to manual processes and provides a way for future advancements in automated architectural drawing review and error detection.
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Newton법을 이용한 IPMSM의 고정자 저항 고려 최대 출력 제어
조수연(Suyeon Cho),김승주(Seungjoo Kim),함상환(Sanghwan Ham),유광현(Gwanghyeon Ryu),안한웅(Hanwoong Ahn),이주(Ju Lee) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
This paper presents maximum power control of IPMSM for EV/HEV. Conventional maximum power control of IPMSM approximated the stator resistance. This common assumption was allowed to high-voltage and low-current type motor. But, since IPMSM for EV/HEV have low voltage source and large current capacity, the lack of control voltage is caused by the assumption of stator resistance. And it makes nonlinear characteristics of the motor control, especially overmodulation in PWM inverter. So it needs to consider voltage drop between the stator resistance. In this paper, voltage equation including the stator resistance was used for the maximum power control of IPMSM. For solving complexities of this equation, Newton method was used. Finally, the proposed method was verified to compare with the conventional method by matlab/simulink simulation results.
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가속 능력을 고려한 주행 집전계 시험기 주행대차용 선형 유도전동기 설계에 관한 연구
조수연(Suyeon Cho),김광수(Kwangsoo Kim),이형우(Hyungwoo Lee),함상환(Sanghwan Ham),안한웅(Hanwoong Ahn),이주(Ju Lee) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
This paper presents design process of linear induction motor in dynamic tester for catenary-current collection. To minimize length of rail for dynamic tester for catenary-current collection, accelerating performance of the linear induction motor is very important. So the design process of linear induction motor considered in this paper is different with general design process of linear induction motor, because dynamic tester has three type driving region, as accelerating region, constant speed region, and braking region. Considering accelerating performance of motor, distance and time from starting point to constant speed region were concerned for load condition of motor. Designed linear induction motor was analyzed by 2-dimensional finite element method. Using mechanical dynamics simulation with analysis result of 2-dimensional finite element method, accelerating performance of designed motor was proved.
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Mitrofanovite, Layered Platinum Telluride, for Active Hydrogen Evolution
Suyeon Cho(조수연) 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
Two-dimensional (2D) layered catalysts have been considered as a class of ideal catalysts for hydrogen evolution reaction (HER) because of their abundant active sites with almost zero Gibbs energy change for hydrogen adsorption. Despite the promising performance, the design of stable and economic electrochemical catalyst based on 2D materials remains to be resolved for industrial-scale hydrogen production. We studied layered platinum tellurides, mitrofanovite Pt<sub>3</sub>Te<sub>4</sub>, which serves as an efficient and stable catalyst for HER together with a high current density exceeding 7000 mA/cm<sup>2</sup>. Theoretical calculations exhibit that Pt<sub>3</sub>Te<sub>4</sub> with numerous edges shows near-zero Gibbs free-energy change of hydrogen adsorption, which shows the excellent HER performance as well as the extremely large exchange current density for massive hydrogen production.
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전기 동력 이륜차의 회생제동에 따른 구동효율 향상에 관한 평가 연구
조수연(Suyeon Cho),서동현(Donghyun Seo),박준성(Junsung Park),신외경(Waegyeong Shin) 한국자동차공학회 2016 한국 자동차공학회논문집 Vol.24 No.6
Regenerative braking performance of an electrically powered vehicle is closely related to driving distance per battery charge. An electric vehicle uses appropriate amounts of mechanical braking force and electromagnetic regenerative braking force to recover energy and increase driving efficiency. In particular, when it drives on a downhill road, energy recovery rate is maximized through regenerative braking during coasting based on the mass inertia of the vehicle. Since an electric two-wheeled vehicle covered in this paper is lighter than an electric four-wheeled vehicle, the improvement of its driving distance per battery charge through regenerative braking is different from an electric four-wheeled vehicle. This study compared the driving characteristics of an electric two-wheeled vehicle based on regenerative braking. Two driving test modes were simulated with a chassis dynamometer system. By analyzing the measurement of a chassis dynamometer, the driving characteristics of a two-wheel electric vehicle, such as driving efficiency, were analyzed. In addition, test results were reviewed to draw the limitations of conventional test methods for regenerative braking performance of an electric two-wheel vehicle.
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2차원 층상구조 전이금속칼코젠의 반도체-도체 구조상전이 기반 응용 기술
조수연,김세라,석진봉,양희준,Cho, Suyeon,Kim, Sera,Seok, Jinbong,Yang, Heejun 한국진공학회 2016 진공 이야기 Vol.3 No.1
Motivated by two dimensional graphene, layered transition metal dichalcogenides (TMDs) have attracted scientific interests by their diverse electronic, optical and catalytic properties. In particular, group 6 TMDs such as $MoS_2$ and $MoTe_2$ have polymorphs (with metallic octahedral and semiconducting hexagonal phases) which are not present in graphene. Here, we introduce a new concept in 2D materials' studies, structural phase transition, with group 6 TMDs and its current research trend and applications for electric device and electrochemical catalyst.
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