• 한국병원경영학회지
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• 제12권3호
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• pp.1-19
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• 2007

This study focused on finding the variation of medical service utilization and medical payments of the patients died by three, cancers, stomach, breast, and colon cancer. For this study, data of the one-year episodes of the health insurance subscribers died in 2004 were selected. The frequency of medical visits, the lengths of slays, the days of outpatient visits, the total period of medical services and the total medical payments were compared by the characteristics of the suppliers and utilizers. The data of the patients died by cerebrovascular diseases and cancer in 2004 were selected. To select the dead by cerebrovascular diseases and cancer in 2004, were matched the 2004 reimbursement data of all medical institutions to the data of funeral fee payment by the National Health Insurance Corporation from January 2004 to May 2005 for the death in 2004. The results of the analysis were as follow. The variation of medical service utilization of the dead by cancers were not small in Korea. The current study found that the variation of medical care utilization was influenced by the factors of suppliers, such as types and locations of medical institutions and the factors of users, such as sex and age. It was suspected that the reimbursement by fee-for-service contributed to the variation quite a lot, but we could not compare the variation between the different reimbursement systems in Korea. The results of the study suggested that tile factors of suppliers and utilizers should he reviewed to reduce the under use and over use expressed by variations of medical service utilization. The processes of care, effective communication and management system should be investigated for the equity of medical service utilization. Additionally, prospective payment could he recommended to reduce the high variation of medical service Use. To find the variation caused by under use and over use, further study need to control the severity of diseases, socio-economic status of the users and the system factors.

• 한국실내디자인학회논문집
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• 제21권5호
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• pp.153-161
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• 2012

The purposes of this study were to reevaluate urban traditional houses and to propose direction for the conservation and utilization of urban traditional houses in a way of maintaining historical landscape rather than the value of urban traditional houses as components in expanded urban structure. For these purposes, we identified the characteristics of conservation and utilization of urban traditional houses by representative cases and analyzing them exhaustively, and suggested problems in the cinservation and utilization of traditional houses and solution for them. The current conservation system for Urban Traditional House in the Bukchon area is applied to non-residential Urban Traditional House differently according to the owner's consciousness of conservation because there is no support system for non-residential Urban Traditional House. Accordingly, there should be standardized criteria to maintain the landscape of the Bukchon area in terms of beauty formed by the elevation of Urban Traditional House and the continuity of roofs while accommodating various functions. As in total conservation or partial conservation, the interior remodeling of individual houses may be allowed but the three-dimensional external appearance composed of the outer walls, fences and roofs of Korean-style houses should be repaired and improved in a way of maintaining the image. In order to utilize Urban Traditional House in the Bukchon area, plans should be made in consideration of its location, historicity and tradition. We may expect the utilization of traditional cultural facilities and their surrounding areas as alternative cultural spaces. Such use of individual Urban Traditional House should be extended by linearly and areally and suggest the direction of conservation and utilization.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.274-276
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• 2001

A simple current controller for three-phase PWM power inverters using 3-level comparator is presented. All voltage vectors are accurately selected in order to minimize the current error using two three-level comparators and ${\alpha}-{\beta}$ current reference frame. The proposed algorithm have fast response and low current errors. This current controller is improved synchronization problem and increased the voltage utilization value. Usefulness of propose method are verified on the simulation result using Matlab/Simulink.

• 전력전자학회논문지
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• 제8권2호
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• pp.143-150
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• 2003

본 논문에서는 소규모 태양광 발전시스템에 적합한 전류보상기법을 갖는 개선된 최대전력 점 추적시스템을 제안하고자 한다. 제안된 전류보상기법을 갖는 개선된 최대전력 점 추적시스템은 한 샘플링 주기 동안에도 매 수위칭 주기마다 가변 레퍼런스 전류를 생성하여 최대전력 점 추적(MPPT)을 수행하는 방식이다. 이로 인해 세안한 방식은 기존 방식보다도 부하측으로 전달되는 출력전력이 약 9%정도 증가되었다. 그 결과 태양광 패널의 이용률이 상당히 증가될 것으로 사료된다. 또한 제안한 방식은 DSP를 사용하지 않기 때문에 제어회로가 단순하여 회로구성이 용이할 뿐만 아니라 저 비용의 특징을 가지고 있다. 그러므로 제안한 방식은 저 전적, 저 비용의 소규모 태양광 시스템에 적합한 방식으로 사려된다. 본 논문에 제안한 개선된 최대전력 점 추적시스템의 개념 및 제어원리가 자세히 설명되고 있고 또한 제안한 방식의 타당성을 검증하기 위해 시뮬레이션을 수행하였다.

• 한국정보통신학회논문지
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• 제8권6호
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• pp.1250-1256
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• 2004

현재 및 과거 위치 질의를 위해 연속적으로 변경되는 위치의 이동은 저장되고 색인화 되어야 한다. 기존의 R-트리에 시간을 다른 차원으로 추가하여 간단하게 확장한 3차원 R-트리는 현재 위치 질의를 다루지 않고 있으며, 색인 노드들의 많은 중첩으로 인하여 공간 활용도가 낮다는 문제점이 있다. 이 논문에서는 분할된 노드의 공간 활용도를 높이기 위하여 향상된 3차원 R-트리의 동적 분할 정책을 제안한다. 또한, 이동체들의 현재 및 과거 위치를 질의하기 위해 새로운 태그 색인 구조를 소개함으로서 기존의 3차원 R-트리를 확장하였다. 현재 및 과거 위치 질의에서 제안하는 태그 동적 3차원 R-트리는 기존의 3차원 R-트리와 TB-트리 보다 성능이 우수하였다.

• 한국컴퓨터정보학회논문지
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• 제25권12호
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• pp.315-320
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• 2020

이 연구는 목적은 경찰청, 경비협회 등에서 제공하는 최근 3년 동안의 민간경비업체·경비원, 규모별 경비업체, 일반·특수(신임교육), 자격제도 현황의 분석 및 해석을 통해 우리나라 민간경비업의 이론적 바탕을 제공하고 민간경비업을 해석하기 위한 새로운 시각을 제공하는 것이다. 결과적으로 현황을 통해 살펴 본 민간경비업은 수도권·시설경비의 집중, 비정상적인 신변보호업체 대비 신변보호원의 수, 특수경비업의 정규직 전환이였고, 신임교육에서는 일반경비원은 아직 지속적인 교육 증가, 반면에 특수경비원의 교육은 한계점이 나타났다. 자격제도에서는 경비지도사의 자격증의 활용성과 신변보호사 자격증의 활용과 홍보가 부족한 것으로 나타났다. 이러한 민간경비업의 현황들로 살펴본 특징들의 대응방안은 다음과 같다. 첫 번째, 민간경비업의 균형발전과 업무구분의 명확성이다. 두 번째, 민간경비 교육과 교육기관의 질을 높여야 한다. 세 번째, 자격제도의 현실화와 적극적인 홍보이다.

• 한국관개배수논문집
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• 제19권1호
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• pp.50-63
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• 2012

Many reclaimed tideland projects in Korea have been conducted to secure the food self-sufficiency. In fact, the domestic food self-sufficiency has been greatly improved and reclaimed tideland projects contribute to Korea's economic and social development directly or indirectly replacing agricultural lands from urbanization, industrialization. As result, current self-sufficiency of rice reach the demand(104.6%) while rate of upland crops has less than 30% of self-sufficiency rate and corn, wheat, soybeans, etc. are virtually dependent on imports. Domestic price of crop is expected to be unstable by trend of international grain prices. Therefore, developing reclaimed tidelands as upland which is originally constructed for paddy fields could be a good option to become steady in domestic crop market and dedicate to ensure a stable food security. The study to prepare measures for dealing with disasters in reclaimed tidelands of west coast district is required in order to utilize those sites for infra construction of multi-utilization in those sites and The result of flooding analysis in this study can suggest policy direction for practical utilization of reclaimed tidelands in yellow sea area.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 추계학술대회
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• pp.733-735
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• 2012

다중프로세서 시스템 상에서 합성 이용율을 이용한 비주기 태스크들의 프로세서 이용율 계산 시 태스크가 실제 모든 실행시간을 종료하여 더 이상의 실행시간을 갖지 않더라도 현재요청집합에 속해 있다면 실행시간과 종료시한을 합성 이용율에 포함하기 때문에 실제 스케줄링 가능한 태스크들이 실행 불가능한 경우로 판단되는 문제점을 가지고 있다. 본 논문에서는 이러한 문제점을 해결하여 다중 프로세서 시스템에서 더 많은 비주기 태스크들이 스케줄링 가능 하도록 개선된 합성 이용율 방법을 제시 하였다.

• 환경영향평가
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• 제22권3호
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• pp.265-276
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• 2013

This study assessed documentation status of each environmental assessment items by analyzing the 243 case of marine EIS on the Consultation System of Sea Area Utilization. Observed rate of tidal elevation, current, temperature, salinity in maine environment were below 20%. The EFDC tool is applied substantially in hydrodynamic modeling. The verification process, however, is very insufficient using the recent observed data. Also, in-situ assessment rate of pelagic organism such as phytoplankton was below 50%, and assessment for Chlorophyll a was not accomplished. Ecological index evaluation for zooplankton and benthic ecosystem were not considered in statements. Especially, the rational assessment on the fisheries resources and protected species were very limited. It was necessary that the core assessment items (checklists) were established for environmental scoping. Furthermore, suggestion of information related to development, regional coastal management plan, aquaculture farms, and facilities were enhanced. The redundancy problem of proceedings between Environmental Impact Assessment and Sea Area Utilization Assessment System was improved.

• 보건행정학회지
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• 제30권1호
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• pp.62-71
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• 2020

Background: The purpose of this study is to analyze the current status and factors of elderly patients' hospitalization for hip replacement, knee replacement, and general spine surgery. Methods: National health insurance data in 2018 was provided by the National Health Insurance Service. We used multiple regression to analyze factors associated with the medical utilization of hip replacement, knee replacement, and general spine surgery in elderly patients over 65 years old. The dependent variables are the length of stay and total health expenditure. The independent variables are the demographic-social factors (sex, age, region, insurance type, income level) and surgery-related factors (institution type, location of the hospital, surgery classification). Results: The most common factor affecting surgery was the location of medical institutions. Compared with the medical institutions located in metropolitan, the length of stay in rural medical institutions was higher and total health expenditure was lower. The lower quartile of income, the higher the length of stay and total health expenditure. In addition, the variables of age, type of health insurance, and type of medical institution were statistically significant. Conclusion: In this study, we confirmed the effect of sociodemographic factors and medical institution factors on the Healthcare Utilization of spinal and joint surgery.