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최광석 대한전자공학회 2007 電子工學會論文誌-SD (Semiconductor and devices) Vol.44 No.6
The front-end system having a capable of 2x reading and writing of BD-R/RE/ROM is developed. Its readability is improved by adopting 5-tap adaptive partial response maximum likelihood (PRML) with the PR(a,b,c,d,e) type channel. Due to the proposed PRML, less than 2 x 10-4 of the bit error rate (BER) is achieved with radial and tangential tilt margin of over0.6on 25GB disc in 2x speed. The method of an optimum power control (OPC) for stable writing of various BD-R/RE is proposed. The developed chip contains 14-million transistors in a 60mm2 dies, and is fabricated in 0.18-μm CMOS technology. BD-R/RE/ROM을 2배속으로 기록하고 재생할 수 있는 전단 시스템을 개발하였다. 시스템의 재생능력은 PR(a,b,c,d,e)형 5탭 PRML을 채택함으로써 향상되었다. 제안된 PRML덕분에 2배속 25GB 디스크에서 0.6 이상의 라디알 및 탄젠셜 틸드 마진을 가지고도 2x10-4이하의 BER을 얻을 수 있었다. 최적파워레벨이 다른 다양한 BD-R/RE의 안정적인 기록을 위해 OPC 방법에 대해서도 제안하였다. 개발한 시스템은 0.18-μm CMOS공정으로 60mm2 면적에 1,400만 트랜지스터를 칩에 집적하였다.
공공병원 건강검진센터의 공간과 면적구성에 관한 건축계획 연구
최광석 한국의료복지건축학회 2022 의료·복지 건축 Vol.28 No.1
Purpose: Health examination centers of regional public hospitals are essential facilities for strengthening preventive medical services in local communities. This study is to organize architectural planning data related to function, space, and area composition of health examination center by the size of the regional public hospitals. Methods: The literature review on the function and spatial composition of the health examination center and the drawings of the regional public hospitals were analyzed. Results: The result of this study can be summarized into several points. 1) The function of the health examination center consists of a diagnostic area, patient area, and staff area based on general examination and comprehensive examination. 2) The type of spatial composition of the 300-bed public hospital examination center is a spatial linkage type with examination rooms of the other departments where general examination and comprehensive examination are undifferentiated. 3) The examination center of public hospitals with 500 beds or more is composed of an independent space-separated type with self-installed examination rooms, and general examination and comprehensive examination are divided. 4) The examination center of public hospitals with 300 beds around, the diagnostic area occupies most of the total area, around 80%, but in public hospitals with 500 beds or more, the proportion of diagnostic area drops to 50-60%, and patient area increases to 30-40%. Implications: The examination center planning of public hospitals requires an architectural planning approach to the function and spatial composition according to the size of the hospital.
민간 권역 감염병 전문병원의 공간구성 및 동선에 관한 건축계획 연구
최광석,정다운,권순정 한국의료복지건축학회 2019 의료·복지 건축 Vol.25 No.4
Purpose: Since infectious disease hospitals are premised on emergency operations, the operational efficiency of secured personnel, equipment, facilities, etc. is relatively low. In order to increase such normal operational efficiency, it is necessary to flexibly operate facilities and operations during normal and emergency times. The purpose of this study is to suggest the architectural planning method focusing on the space composition and circulation of the regional infectious disease hospital which can increase the operational efficiency in the private hospitals. Methods: Through literature review, functional requirements of infectious disease hospitals were identified, and related personnels inter-views and field surveys were conducted to understand the spatial composition and circulation requirements of infectious disease hospitals. Results: Through the complete separation between the negative pressure zone and the general zone, even when the negative pressure zone is completely closed, the general zone should be operated separately to achieve operational efficiency. In addition, the separation of the negative pressure zone and the general zone should simultaneously consider the optimal space configuration and movement for each function while the zone settings match in the floor plan of each department and the overall cross-sectional configuration of the hospital. Implications: Infectious disease hospitals intended to be installed in private hospitals should not apply excessive space just for safety reasons and should plan to ensure their operational efficiency.
최광석,박재승,조지 맨,김광문 한국의료복지시설학회 1999 의료·복지 건축 Vol.5 No.8
Current Korean healthcare facilities face on a difficult period as much as financial difficulty in Korean economy. Most of all the hospitals have difficulty in minus profit margin and hospital investments are also reducing rapidly. Probably, these seem to set in the period of re-organizing its structures and enhancing productivity from the rapidly growing period, which was to concentrate its resources and prefer large scaled structures. Analyzing the developing process and future trend in the U. S. health care facilities, already experienced in financial difficulty of current Korean health care facility in 70s thru. 80s, this paper is to present directions in future Korean health care policy and healthcare facility planning.
ERP시스템을 이용한 농업회사법인의 혁신을 위한 지식경영 사례
최광석,구철모,이대용 한국지식경영학회 2010 지식경영연구 Vol.11 No.5
This study has focused on the introduction each stages of ERP(Enterprise Resource Planning) implementation for an agricultural company`s knowledge management & innovation. We have analyzed the company`s background and found some conflicts and problems caused by the stockholders while implementing ERP systems. This case study has noted well how an agricultural company including between a provider and a stakeholder could be able to settle the ERP system with an necessary customizing work into the organization. Finally, ROSEPIA`s implemented ERP systems have increased not only productivity but also archived the factuality and data reliability. This study give us an implication of how an export oriented and agricultural company, ROSEPIA made its company innovated and run its organizations through knowledge management using its ERP.