• 정보보호학회논문지
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• 제21권6호
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• pp.109-117
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• 2011

오늘날 우리는 행정기관을 비롯하여 학교, 은행, 병원, 일반 기업 등 다양한 기관에서 해당 기관의 방문 없이 집 사무실 등 어디서든, 24시간 365일 인터넷을 통해 필요한 서류를 발행 받을 수 있는 서비스를 받고 있다. 하지만, 서비스를 제공 및 이용하기 위해서는 인터넷을 통해 전달되는 정보에 대한 위변조 위협 및 출력 문서에 대한 위변조 위협에 대응할 수 있는 보안 기능이 요구된다. 이에 본 논문에서는 온라인상으로 문서를 발급하는 경우 해당 과정 동안에 발생할 수 있는 보안 위협을 도출하고, 이를 통해 온라인증명서 발급시스템이 반드시 갖추어야 할 필수 보안 기능을 공통평가기준 V3.1을 기반으로 도출하고자 한다. 이는 온라인증명서 발급시스템 평가 및 도입 시 참고자료로 충분히 활용될 수 있을 것이다.

• 천문학회보
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• 제46권2호
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• pp.53.4-54
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• 2021

Although the era of very large telescopes has come, small telescopes still have advantages for fast follow-up and long-term monitoring observation. Intensive monitoring survey of nearby galaxies (IMSNG) aims to understand the nature of the supernovae (SNe) by catching the early light curve from them with the network of small telescopes from 0.4-m to 1.0-m all around the world. To achieve the scientific goals with heterogeneous facilities, three factors are important. First, automatic processes as soon as data is uploaded will increase efficiency and shorten the time. Second, searching for transients is necessary to deal with newly emerged transients for fast follow-up observation. Finally, the Integrated process for different telescopes gives a homogeneous output, which will eventually make connections with the database easy. Here, we introduce the integrated pipeline, 'gppy' based on Python, for more than 10 facilities having various configurations and its performance. Processes consist of image pre-process, photometry, image align, image combine, photometry, and transient search. In the connected database, homogeneous output is summarized and analyzed additionally to filter transient candidates with light curves. This talk will suggest the future work to improve the performance and usability on the other projects, gravitational wave electromagnetic wave counterpart in Korea Observatory (GECKO), and small telescope network of Korea (SOMANGNET).

• 대한토목학회논문집
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• 제30권6D호
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• pp.663-673
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• 2010

본 연구에서는 사회기반시설에 사전 대응적 방식의 자산관리 체계를 도입하기 위해 자산관리정보시스템을 개발하고 있다. 본 연구는 향후 자산관리정보시스템의 개발과 운영을 위한 방향을 모색하기 위한 목적으로, 자산관리정보시스템의 예상되는 성과를 평가하기 위한 사용자 만족도와 자산관리기능이 유지관리 업무에 미치는 영향정도를 분석하기 위해 연구 모형을 체계화하고 평가기준을 선정하였다. 선정된 평가기준에 따라 중요도를 산정하기 위해 AHP 분석 방법을 사용하였다. 중요도의 논리적 일관성을 검증하였으며 한쪽으로 편중된 이상치를 최소로 반영하기 위해 대용가능지수를 계산하였다.

• 한국보건간호학회지
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• 제9권1호
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• pp.83-102
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• 1995

As the society is being industrialized, the fast-paced economic development that has caused substantial increase in cerebrovascular and coronary artery diseases and the industrial development and increased use of means of transportation have resulted in the rapid rise of incidents in external injuries as well. So the pubic has become acutely aware of the need for fast and effective emergency care delivery system. The goal of emergency care delivery system is to meet the emergency care needs of patients. The emergency care delivery system is seeking to efficiently satisfy the care needs of people. Therefore the purpose of this study is designed to develop an effective programs for emergency care delivery system in Korea. The following specific objectives were investigated. This emergency care delivery system must have the necessary man power, for transfering the patients, communication net work, and emergency care facilities. 1) Man power Emergency care requires n0t only specialized traning in the emergency treatment but also knowledge and experience i11 other related area, so emergency care personnel traning program should be designed in order to adapt to the specific need of emergency patients. It will be necessary to ensure professional personnel who aquires the sufficient traning and experience for emergency care and to look for legal basis. We have to develop re-educational programs for emergency nurse specialist. They should be received speciality of emergency nursing care so that they will work actively and positively in emergency part. Emergency medical doctor and nurse specialist should be given an education which is related in emergency and critical care. Emergency care personnel will continue to provide both acute and continuing care as partner with other medical team. 2) Transfering the patients. Successful management of pre-hospital care requires adequate traning for the emergency medical technician. Traning program should be required to participate in a actual first aids activites in order to have apportunities to acquire practical skills as well as theoretical knowledge. The system of emergency medical technician should be remarkablly successful with first responder firefighters. Establishing this system must add necessary ambulances operating at any given time. It will be necessary to standardize the ambulance size and equipment. Ambulance should be arranged with each and every fire station. 3) Communication net work. The head office of emergency commumication network should be arranged with the head office of fire station in community. It is proposed that Hot-line system for emergency care should be introduce. High controlled ambulance and thirtial emergency center should simultaneously equip critical-line in order to communication with each other. Ordinary ambulance and secondary emergency facility should also simultaneously equip emergency-line in order to communication with each other. 4) Emergency care facilities. Primary emergency care facilities should be covered with the ambulatory emergency patients-minor illness and injuires. Secondary emergency care facilities should be covered with the emergency admission patients. Third emergency care center should be covered with the critical patients who need special treatments and operation. Secondary and third emergency care facilities should employ emergency medical doctor and emergency nurse specialist to treat in-patients with severe and acute illness and multiple injuires. It should be fashioned for a system of emergency facilities that meets emergency patients needs. Provide incentives for increased number of emergency care facilities with traning in personal/clinical emergency care. 5) Finance It is recommended to put the finance of a emergency care on a firm basis. The emergency care delivery system should be managed by the government or accreditted organizations. In order to facilitate this relevant program the fund is needed for more efficient and effective emergency researchs, service, programs, and policy. 6) Gaining understanding and co-operation of pubic It is also important to undertake pubic education to improve understanding of first aids and C. P. R of individuals, communities and business. It is proposed that teachers and health officers be certified in C. P. R. The C. P. R education can be powerful influence save lives. Lastly appropriate emergency care information must be provided to the pubic for assisting them in choosing emergency care.

• 한국지열·수열에너지학회논문집
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• 제7권1호
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• pp.17-22
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• 2011

Renewable energy is growing based on low-carbon green energy government policies. According to this policy, geothermal energy is highly efficient and environmental friendly energy which is being recently expanded. However, construction companies are generated disorderly but their ability has not been verified due to the poor geothermal facility which was reported in the media. In the this paper introduce on Busan region's largest geothermal facility, it was confirmed that thermal efficiency of the underground is close to heat exchanger performance. Therefore the study improving the efficiency of underground heat exchange found progressed. The results showed voids between borehole and ground heat exchanger should not be raised. And then geothermal facilities were installed very successfully through the principle grouting operation. As compared to the energy consumption on the basis of operating results energy usage was less than any other heat sources.

• 한국정보통신학회논문지
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• 제8권8호
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• pp.1802-1809
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• 2004

음성 및 데이터 비용분리는 이동망 착신접속료 산정에 있어 음성트래픽과 관련된 비용만을 접속원가에 포함시키기 위한 것이다. 이에 대한 방안으로는 단일통화량 기준, 설비기준, 수익기준, 램지기준, 초고속망 비용배분 벤치마킹 등 여러가지가 있을 수 있으며 각각의 장단점을 비교하는 것이 중요하다. 본 연구에서는 먼저 비용배분에 대한 이론적 고찰을 수행하고 각각의 장단점 분석을 수행하고 있다. 또한 해외 정책적 연구와 관련된 사례분석을 통해 해외에서 적용하고 있는 논리를 검토하고 국내에 있어 도입시 고려해야 할 요소에 대해 살펴보고 있다. 초기에는 영국의 망세분화시 공유회선의 제공에 대해 50:50의 공통비용 배분방식을 도입하는 것을 고려해 볼 만하다. 이후에는 음성과 데이터 트래픽이 같아지는 시점이 오면 비율배분방식을 적용함으로써 증가된 데이터 트래픽에 따른 비용발생을 적절하게 고려할 수 있을 것이다.

• 한국안전학회지
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• 제9권1호
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• pp.155-160
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• 1994

A study of stream pollution caused by construction of the Industrial Complex in Agricultural Area of Chung Chong Nam Do were descrived here. The five main results of this studies are summerized. First, since 1988, among the companies moved in the industrial complex area, the number of electric and electronic companies have increased compared with food companies requiring much BOD. This Is very desirable to reduce the water pollution. Second, the average Biochemical Oxygen Demand(BOD) of Masan stream was the highest and it was decreased in the order of Yudug, Jo and Jungan stream. Third, although the concentration of heavy metals such as Cd and C $r^{6+}$ are not off the limit and the amount of it is small, it is desirable to introduce a chemical process to remove these metals. Fourth, since the wastewater from industrial complex area is the major factor in stream pollution, the laws associated with environmental protection should be enforced even then if the Industrial complex area with food and chemical companies produce wastewater less than 500ton/day. Fifth, it is required to improve a facilities which separete living wastewater from inderstrial wastewater In Kaya-gok and Nojang industrial complex areas.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2000년도 춘계공동학술대회 논문집
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• pp.160-163
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• 2000

Due to the complexities of the real-world system, a water resource management program has to deal with various types of data. It appears that management personnel who has to use the program usually suffers from the technical burdens of handling large amount of data and understanding the optimization theory when they try to interpret the results. By combining the capabilities of database technology and modeling technique with optimization procedure we can develop a reliable decision supporting tool for multi-reservoir operation planning, which yields operating schedule for each dam in a river basin. We introduce two special data handling methodology for the real world application. First, by treating dams, hydro-electric power generating facilities and demand sites as separate database tables, the proposed data handling scheme can be applied to general water resource system in Korea. Second, by assigning variable names using predetermined key words, we can save searching time for identifying the moaning of the variables, so that we can quickly save the results of the optimization run to the database.

• 디자인학연구
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• 제14권4호
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• pp.15-24
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• 2001

환경 미학은 장대한 자연의 미와 도시경관의미 전체영역을 포함하는 것이라고 한다면 도시경관은 '도시의 보기 좋은 경치' 또는 '미관'이라고 정의되고 있다. 그러므로 우리는 도시경관의 새로운 계획 패러다임으로 미의 문제를 상정하고 이를 해결 할 수 있는 방법을 찾아야 한다. 이러한 환경미학이란 도시경관의 새로운 계획을 모색하는 것으로 도시경관의 미적 가치와 내용을 살피고 도시경관의 미적 경험을 설명하기 위한 것으로 미학적 맥락인 심미성의 평가는 도시시설물인 스트리트퍼니처(street furniture)의 조형미인 디자인요소를 추출하는 것으로 도시환경 디자인에 있어 새로운 의미를 제공할 수 있을 것이다.

• 대한산업공학회지
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• 제27권3호
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• pp.250-259
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• 2001

Given a tree structured network in which each node has its own demand and also stands for a candidate location of a potential facility, such as plant or warehouse, a capacitated facility location problem on the network (CFLPOT) is to decide capacitated facility locations so that the total demand occurred on the network can be satisfied from those facilities with the minimum cost. In this paper, we first introduce a mixed integer programming formulation for CFLPOT with two additional assumptions, the indivisible demand assumption and the contiguity assumption and then show that it can be reformulated as a tree partitioning problem with an exponential number of variables. We then show that it can be solved in O($n^2b$) time by utilizing the limited column generation method developed by Shaw (1993), where n is the total number of nodes in the network and b is the maximum facility capacity. We also develop a depth-first dynamic programming algorithm with a running time of O(nb) for finding the locally maximal reduced cost which plays an important role in the limited column generation method. Finally, we implement our algorithms on a set of randomly generated problems and report the computational results.