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의료 정보 표준을 따르는 EHR 통합 VNA 프레임워크 설계 연구
최영환,송기원,김용석 한국지식정보기술학회 2016 한국지식정보기술학회 논문지 Vol.11 No.6
This paper proposes an integrated medical information system architecture, VNA (Vendor Neutral Archive) architecture, which accumulates various medical data such as medical documents, medical image, and DICOM. The proposed system provides convergence and synergy among such medical data. CMS(Centers for Medicare & Medicaid Services) suggests healthcare service vendors to follow “CMS Meaningful Use” and its standard solutions. CMS Meaningful Use is a CMS Medicare and Medicaid program that awards incentives for using certified electronic health records (EHR) to improve patient care. Meaningful Use is implemented in a phased approach over a series of 3 stages. Stage 1 promotes basic EHR adoption and data gathering. Stage 2 emphasizes care coordination and exchange of patient information, and Stage 3 improves healthcare outcomes. Finally, this paper presents a VNA framework designed for satisfying Meaningful Use Stage 1. Medical image data and medical information data are separated and stored. Each module is divided into separate modules according to the format of original data and the format of target data to be converted. This paper also present evaluation items for quantitatively evaluating the performance of solutions developed according to the proposed framework. Therefore, this study expects to be a VNA framework for convergence of medical information conforming to different standards. 본 논문에서는 DICOM과 같은 의료 영상 뿐 아니라 다양한 의료 영역의 의료 정보 및 문서들까지 축적할 수 있는 통합 의료 정보 시스템인 VNA(Vendor Neutral Archive)의 구조를 제안한다. 이 시스템은 의료 데이터의 각 영역과의 시너지 및 융합을 위한 중요한 요소이다. CMS(Centers for Medicare & Medicaid Services)에서는 의료 서비스 공급 업체가 "CMS Meaningful Use"와 이것에서 파생된 표준 솔루션을 따르도록 제안한다. CMS Meaningful Use는 인증된 전자 의무 기록(EHR)을 사용하여 환자의 치료를 향상시키는 CMS Medicare & Medicaid 프로그램을 의미한다. 이러한 Meaningful Use 제도는 3 단계에 걸쳐 단계적인 접근 방식을 갖추고 있다. 1단계는 기본적인 EHR 채택 및 데이터 수집을 촉진한다. 2단계는 병원 간 의료 정보 교환을 강화하고, 마지막으로 3단계에서는 이를 통해 의료 결과를 향상시키는 것을 목적으로 한다. 본 논문에서는 Meaningful Use의 단계 1을 충족시키기 위해 고안된 VNA 프레임워크를 제안한다. 의료 영상 데이터 및 의료 정보 데이터는 분리되어 저장한다. 각 모듈은 원본 데이터의 형식과 변환 할 대상 데이터의 형식에 따라 별도의 모듈로 구분한다. 또한 제안된 프레임워크를 따라 개발된 솔루션의 성능을 정량적으로 평가하기 위한 평가 항목을 제시한다. 따라서 서로 다른 표준을 따르는 의료 정보의 융합을 위한 VNA 프레임워크가 될 수 있다고 기대한다.
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최영환,최영훈,강점순,손병구,이영근,주우홍 밀양대학교 농업기술개발연구소 2000 農業技術開發硏究所報 Vol.4 No.1
This study was conducted to estimate growth of leaf and shoot and flowering as affected by GA3 treatment in vitro. Plant height was longer as the concentration of GA3 was higher up to 2.0mg/l. Stem diameter was thick up to the concentration of GA3 was 0.1mg/l , but become thinner as the concentration of GA3 was higher. Root weight and root length were well developed in GA3 concentration was 0.5∼2.0mg/l. Number of roots was more in GA3 concentration was 0.5 and 1.0mg/l . The first flowering occurred in 40 days after 0.5 mg/l GA3 treatment. As the concentration of GA3 was higher, flowering was delayed. Number of flowering was significantly increased in GA3 concentration was 0.1 and 0.5mg/l. However, it was gradually decreased after 60 days. Percentage of flowering per plant was highest in GA3 concentration was 0.5mg/l , but it was lower as the concentration of GA3 was increased.
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Formation of a Polycrystalline Silicon Thin Film by Using Blue Laser Diode Annealing
최영환,류한열 한국물리학회 2018 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.72 No.8
We report the crystallization of an amorphous silicon thin film deposited on a SiO2/Si wafer using an annealing process with a high-power blue laser diode (LD). The laser annealing process was performed using a continuous-wave blue LD of 450 nm in wavelength with varying laser output power in a nitrogen atmosphere. The crystallinity of the annealed poly-silicon films was investigated using ellipsometry, electron microscope observation, X-ray diffraction, and Raman spectroscopy. Polysilicon grains with > 100-nm diameter were observed to be formed after the blue LD annealing. The crystal quality was found to be improved as the laser power was increased up to 4 W. The demonstrated blue LD annealing is expected to provide a low-cost and versatile solution for lowtemperature poly-silicon processes.
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