• International Journal of Aeronautical and Space Sciences
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• 제6권1호
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• pp.44-51
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• 2005

To provide more accurate and reliable positioning and timing services to Korean nationwide users, the Ministry of Maritime Affairs and Fisheries of Korea is implementing Korean NDGPS (Nationwide DGPS), which is operational partly. And it also has a plan to construct WADGPS (Wide Area Differential GPS) system using sites and equipments of the NDGPS reference stations. For that, Seoul National University GNSS Laboratory is implementing and testing prototypes of WRS (Wide-area Reference Station) and WMS (Wide-area Master Station). Until now, because there are not enough installed WRSs to be used for computing wide area correction information, we cannot test algorithms of WMS with the data processed actually in WRSs. Therefore to evaluate the performance of the algorithms, we made a MATLAB program which can process RINEX (Receiver INdependent Exchange) format data with WADGPS algorithm. Using that program which consists of WRS, WMS and USER modules, we processed the data collected at NDGPS reference stations, which are saved in RINEX format. In WRS module, we eliminate the atmospheric delay error from the pseudorange measurement, smooth the measurement by hatch filter and calculate pseudorange corrections for each satellite. WMS module collects the processed data from each reference stations to generate the wide area correction information including estimated satellite ephemeris errors, ionospheric delays at each grid point, UDRE (User Differential Range Error), GIVE (Grid Ionosphere Vertical Error) and so on. In USER part, we use the measurements of reference stations as those of users and estimate the corrected users' positions and protection levels (HPL, VPL). With the results of estimation, we analyzed the performance of the algorithms. We assured the estimated UDRE /GIVE values and the protection levels bound the corresponding errors effectively. In this research, we can expect the possible performance of WADGPS in Korea, and the developed modules will be useful to implementation and improvement of the algorithms.

• 보건행정학회지
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• 제18권1호
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• pp.1-20
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• 2008

How health care providers compete and how competition among them affects their behavior are crucial questions in theory and health policy. In ordinary markets, competition improves social welfare, However in health care markets facing uncertainty and information asymmetry, competition can take the form of wasteful quality competition and result in cost increase. The purpose of this study is to examine the characteristics of hospital service markets and examine the impact of hospital competition on hospital behavior, more specifically hospital cost and the size of personnel. Based on patient discharge data of 2002 by the Ministry of Health and Welfare and Korea Institute for Health and Social Affairs, and health insurance EDI claims data of 2002, this study measures the degree of competition in the inpatient service market of hospitals, using variable radius method and Herfindahl index. The result of the study shows that the hospital service market consists of on average 3.13 government administrative units(shi, gun, or gu). Compared with hospitals, general or general specialized hospitals cover larger markets and operate in more competitive markets. Nearly 60% of patients use hospitals, which are not located in their government administrative units, meaning that market definition based on variable radius is better than the conventional method of market definition based on government administrative units. The results of multivariate analysis show that competition is not associated with high cost index of hospitals. But hospitals in more competitive markets employ larger(more intensive) input of personnel per 100 beds, implying that hospital competition in Korea can have the form of quality and cost-increasing competition.

• 경영정보학연구
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• 제16권3호
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• pp.179-190
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• 2014

교육기관이 보유한 개인정보 파일의 상당수는 개인의 학사정보, 건강정보 등 민감한 정보를 포함한다. 따라서 교육기관의 개인정보유출 사건이 발생할 경우 그 피해가 클 것으로 예상된다. 이러한 피해를 막기 위해 교육부는 2012년부터 교육기관의 (개인)정보보호 담당자를 대상으로 보안인식제고 및 보안기술능력 향상을 목표로 하는 정보보호 교육센터를 설립하여 운영하는 등 다양한 노력을 하고 있지만 여전히 공공기관에서 발생한 개인정보유출 사건의 상당수는 교육기관에서 발생하고 있다. 본 연구는 정보보호 교육센터의 교육과정이 교육대상의 교육수요에 적합하게 운영되고 있는지 확인하기 위해 다음과 같이 진행하였다. 대학의 정보보호 관련 전공 커리큘럼을 조사하여 정보보호 분야의 지식 및 기술 11개를 도출하였고, 정보보호 교육센터의 교육대상인 교육기관의 (개인)정보보호 담당자를 대상으로 정보보호 분야의 지식 및 기술 11개에 대한 교육수요를 조사하였다. 또한, 정보보호 교육센터의 교육과정을 조사하였으며, 이를 교육대상의 교육수요와 비교해보았다.

• Journal of Information Technology Applications and Management
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• 제27권3호
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• pp.37-54
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• 2020

In response to the recent decline in the school-age population, universities have made attracting foreign students a major policy task for universities. As a result, the number of foreign students increased rapidly in terms of quantity, but in terms of quality, the risk is inevitable. Accordingly, the government presented education and internationalization competency certification system indicators on the basis of which quality control of students was systematized. Based on the above certification system, this study focused on analyzing the multiple factors that are actually given to the academic adaptation (performance) of the 2200 students who entered a certain university. In addition, factors other than the certification system index were discovered to comprehensively track how they affect the academic performance of students studying abroad. The researcher found the multi-reciprocal model analysis showed that the difference between the learner and the moderator was significant, and whether or not they had the Korean proficiency test (TOPIK) was significant. It also said that it could have a direct impact on Chinese University Entrance Exams (高考) are significant. If a model that is very effective in selecting students is established by each university and used as an indicator through this study, it will serve as a basis for efficient selection of students.

• 한국병원경영학회지
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• 제18권3호
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• pp.83-105
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• 2013

The purpose of this study is to make managerial information regarding outsourcing more concrete by identifying and evaluating how outsourcing as an useful strategic tool for hospitals influences organizational effectiveness. The survey was performed to 311 general hospitals and tertiary hospitals, and 63 questionnaires were recovered and analyzed. As the result of measuring organizational effectiveness after introduction of outsourcing, non-financial performance(3.34) was higher than financial performance(3.25) and satisfaction(3.08). According to the characteristics of organizational structure, financial performance showed statistically significant difference when categorizing the hospitals. It was higher in the general hospitals than in the tertiary hospitals. In addition, the hospitals that outsource the logistic and patient affairs parts have higher financial performances than non-financial ones. Especially, there was statistically significant difference depending on the sub-parts of the logistics, which means the hospitals outsourcing the logistic part have higher financial performance than the hospitals without outsourcing the logistics.

• Journal of the Korean Data and Information Science Society
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• 제22권3호
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• pp.467-476
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• 2011

우리나라의 건강보험제도권 내 해당되지 않은 상해상병 진료건 중 국민건강보험으로 부당 잘못 청구되는 진료건을 적발하여, 환수조치하기 위해서는 정확한 상해상병 조사대상자 선정이 필요하다. 그러나, 국민건강보험공단의 한정된 인력으로 증가하는 상해조사관련 업무량을 보다 효율적으로 대처하고, 수행하기 위해서는 상해요인조사 업무 효율화 및 환수 결정율 제고를 위한 조사대상자 발췌기준의 고도화 방안을 마련해야 한다. 이에 본 연구에서는 상해상병 유형에 대해 일정금액 이상 진료건의 발췌 등과 같은 과거의 발췌기준에서 데이터마이닝 기법과 같은 통계적 모형과 업무규칙을 함께 적용한 하이브리드 모형으로서 상해상병 조사대상자 선정기준을 제시하고자하였다.

• 보건행정학회지
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• 제24권3호
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• pp.271-282
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• 2014

Background: Although the mortality rate in cancers has been decreased recently, it is still one of the leading causes of death in most of the countries. This study analyzed the relationship between surgery volume and in hospital mortality of cancer patients. The purpose of this study is to investigate the relationship in Korean healthcare environment and to provide information for the policy development in reducing cancer mortality. Methods: The study sample was the 20,517 cancer patients who underwent surgery and discharged during a month period between 2008-2011. The data were collected in Patient Survey by Korean Institute of Social Affairs. Logistic regression was used to analyse a comprehensive analytic model that includes a binary dependent variable indicating death discharge and independent variables such as surgery volume, organizational characteristics of hospitals, socio-economical characteristics of the patients, and severity of disease indicators. Results: In chi-square test, as the surgery volume increases, the in-hospitals mortality showed a downward trends. In regression analysis, the relationship between surgery volume and mortality showed significant negative associations in all types of cancer except for pancreatic cancer. Conclusion: In the absence of other information patients undergoing cancer surgery can reduce their risk of operative death by selecting a high-volume hospital. Therefore, policies to enhance centralization of cancer surgery services should be considered.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2013년도 추계학술대회
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• pp.118-122
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• 2013

현재 법원에서의 디지털저장매체의 압수방법과 관련하여 형소법 제106조제3항에서 제시하는 "원칙적 선별압수, 예외적인 매체압수" 방식은 실제의 수사현실을 무시한 것이며, 이것을 준수하여 집행하기에는 압수목적달성에 어려운 점이 많다. 이에 현재의 압수수색방법의 문제점과 새로운 첨단 환경하의 디지털증거의 바람직한 현장 압수수색방법과 개선방안을 제시한다.

• 농촌지도와개발
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• 제3권1호
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• pp.141-155
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• 1996

The purpose of this study was to investigate the sole of local newspaper for community development in Korea. Specific objectives of the study were : 1) to identify the role of local newspaper in community development, 2) to analyze problems and situations on local newspapers in Korea, and 3) to suggest desirable roles of local newspaper for the community development. To attain the above objectives, this study was carried out through literature review, contest analysis of selected local newspapers, and the questionnaire survey of selected readers of local newspaper. The data were collected from 267 readers of local newspaper who participated in the farmers` training session in the Rural Development Administration, by using questionnaires developed by the researcher, and total of 263 questionnaires were analyzed. The statistical techniques used for the study were frequence, percentile, standard deviation utilizing the $SPSS/PC^+$. The major findings of the study were as follows : 1. The major roles of functions of local newspapers identified in this study were summarized as to reinforce the community consciousness, to form community opinion, to watch and to monitor community environment, to provide education and entertainment, and to contribute to the conveyance and promotion of community culture. 2. The general characteristic of local newspaper readers surveyed were; a) average distance from town to their village was 9.3 Km, b) average age was 29 years, c) about 75% of them were senior high school graduates, and d) about 96% of them participated in group activities. 3. About 45% of the respondents used television or radio for their moor sources of local news were TV or radio, while about 31% respondents used immunity newspaper for their moor sources of local news. About 67% of the respondents kept their readership over two years, and about 40% of them read community newspaper regularly at their home. 4. The results of content analysis showed drat the local newspapers were dealing with articles on cultural affairs, community consciousness, administrative and civic affairs, however, there were not enough educational news, and various kinds of general news in the community. 5. Survey also showed the most needed news were ; 1) political news including administrative and civic affairs, 2) economic news including sales and distribution, 3) social news including social problems on environmental pollution and community development works, 4) educational news including technology and information, 5) cultural news including guide to cultural and historical sites and local brief news. 6. In the evaluation of local newspaper, the readers were generally positive in valued roles of local newspaper in community relations, community development, promoting community cohesion and understanding of community members, and about 40% of the respondents were positive in predicting the bright future perspectives of local newspapers. 7. In the readers` evaluation of local newspaper, readers responded that local newspapers were very closely related to the community and residents, reflecting the current concerns of local population and recognizing the value of community media, and the contents of local newspaper were positively related to daily lives of community residents and opinions of overall community.

• 정보처리학회논문지D
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• 제11D권1호
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• pp.229-240
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• 2004

초$.$중등학교에서는 교육인적자원부 주관 하에 개발한 ERP시스템인 전국단위 교육행정정보시스템(National Education Information System： NEIS)을 활용하고 있다. 본 논문에서는 NEIS를 교육행정업무뿐만 아니라, 국가인적자원을 평생 관리하는 정보시스템으로도 활용할 수 있음을 보였다. 그동안의 초 중등학교 정보관리시스템은 현장 적합도와 사용자 편이성이 미흡하였다. 이와 같은 문제점을 해결하기 위해서는 시스템의 재구축 또는 개정작업이 필요하다. 개정과 보완의 한 방법으로, 전 국민의 건강정보를 학교와 의원에서 공동으로 활용할 수 있는 구체적인 예를 제시해 보고자 하였다. 이를 위해 NEIS의 학생건강기록부와 의사가 기록하는 전자의무기록부의 건강정보를 통합하여 평생관리 할 수 있는 방안을 모색하였다. 구체적으로는, 학교와 의원에서 공통으로 관리하여야할 건강정보들을 XML로 작성해 보았다. 여기에 수요자의 요구에 적합한 뷰를 제공하기 위하여 각기 다른 XSL 스타일시트를 적용하였다. 이 뷰를 이용하여 건강정보를 효율적으로 관리하고 활용할 수 있음을 알았다. 이에 건강정보관리 비효율성과 유관기관간 연계성 미흡을 해결하고, 국가인적자원을 평생관리 할 수 있는 가능성을 확인하였다.