• 대한예방한의학회지
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• 제19권3호
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• pp.57-66
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• 2015

Objective : Private health insurance coverage in Korean medicine has been reduced since October 2009 for preventing unnecessary utilization. The aim of this study is to identify how private health insurance coverage reduction affects on the Korean medicine utilization. Method : We analyzed the Korea Health Panel data from 2008 to 2012. Panel negative binominal regression model was used to analyze the relationship between private health insurance coverage reduction and utilization of outpatient service. Panel tobit regression analysis was used to identify the relationship between private health insurance coverage reduction and health expenditure of outpatient service. Results : Private health insurance coverage reduction significantly dropped both utilization and health expenditure of outpatient service by 9%, 9.22% respectively. In addition, therapeutic utilization significantly decreased up to 10%. Conclusion : Private health insurance coverage reduction seems to have an effect to reduce both utilization and the health expenditure of Korean medicine outpatient service. This effect was more noticeable in the therapeutic utilization. Thus, more elaborate policy will be needed to prevent unnecessary utilization of Korean medicine.

• 정보화정책
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• 제21권2호
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• pp.67-88
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• 2014

이 논문의 연구가설은 스마트기기 활용 교육이 장애인들의 교육 및 학습효과로 스마트기기에 대한 사용능력과 활용 정도의 수준을 높여줄 수 있을 것이라는 것이다. 한국정보화진흥원의 '2012년 정보격차 실태조사 원자료' 중 장애인 데이터를 사용하고, 표본선택편의문제 해결을 위해 Heckman의 2단계 추정법을 활용하였다. 실증 분석결과, 스마트기기 활용 교육을 받은 장애인일 경우 종합적인 스마트기기 사용능력과 활용도 수준이 각각 더 높다는 가설이 채택되었다. 스마트기기 사용능력 및 활용도 측면에서는 스마트기기 활용 교육과 높은 학력 가구소득, 전문사무직, 젊은 연령층 등이 긍정적인 유의미한 영향을 미쳤고, 특히 지체장애에 비해서 시각장애일 경우 스마트기기 사용능력 및 활용도 수준이 낮아지는 것으로 나타났다. 이는 시각장애의 경우 특수 보조기기 및 어플리케이션 없이는 생활이 거의 불가능하므로 지체장애의 경우 두 팔 또는 두 손 전체에 이상이 있는 중증장애가 아닌 한 스마트기기 활용 교육을 통해 스마트기기 사용능력 및 활용도 수준이 높아짐을 알 수 있었다. 본 연구결과는 장애인의 스마트기기 활용도를 높이기 위한 공공 정책 또는 민간 협력의 교육프로그램 진행이 그 목적을 달성하면서 교육의 긍정적인 효과를 보여주면서, 한편 장애유형에 따라 보다 정교한 교육내용과 방법이 필요하다는 것을 보여준다.

• Journal of Communications and Networks
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• 제12권3호
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• pp.209-215
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• 2010

In an asymmetrical speed channel environment like asymmetric digital subscriber line, the up-link bandwidth is normally smaller than the down-link bandwidth, which will lead to extremely low utilization of down-link bandwidth when current P2P video transmission is applied. To overcome this, a new fast P2P video transmission method applied in an asymmetrical speed channel environment is proposed in this paper. On the basis of the many-to-one concept, the proposed method uses a new multipeer aggregation technique to enhance the utilization of down-link bandwidth. In addition, an adaptive peer assignment algorithm is also introduced in order to minimize the overall transmission time. Experimental results show that by using our proposed method, the utilization of down-link bandwidth is significantly improved, and the overall transmission time is greatly reduced.

• 융합신호처리학회논문지
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• 제1권2호
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• pp.97-104
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• 2000

ATM 트래픽 제어를 위해서 효과적인 호 수락 제어 방법이 필요하다. 이것은 호 수락 과정에서 서로 다른 종류의 서비스들에 대해서 높은 이용률과 공정성을 제공하여야 한다. 전체 대역공유 법은 대역폭 이용률 측면에서는 효율적이지만 호 수락의 공정성 측면에서는 비효율적이다. 전체 대역 분할 할당 법은 공정성 측면에서는 효율적이지만 대역폭 이용률 측면에서는 비효율적이다. 본 논문에서는 호 수락의 공정성과 대역폭 이용률을 높이기 위하여 링크에 문턱 값을 적용한 새로운 CST(Complete Sharing with Threshold) 알고리즘을 제안하였다.

• 한국초지조사료학회지
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• 제15권1호
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• pp.24-29
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• 1995

This experiment was canied out to select the optimum utilization method by various pasture types at National Livestock Research Institute, Suwon in 1992 and 1993. Tne main plot was two pasture types. wfiich were mainly top-grass(orchardgrass dominated pasture) and mainly bottom-grass(perennial ryegrass dominated pasture), and the subplot was three pasture utilization methods (grazing, grazing after the 1st cutting, and alternate utilization of cutting and grazing). Average dry matter yields of pasture were not affected by pasture types, but there was significant difference(p <0.05) by pasture utilization methods. Daily DM production of pasture was increased with alternate utilization of cutting and grazing at two pasture types. Also, pasture availability is increased by mainly top grasses and alternate utilization of cutting and grazing. Soil phsical chracteristics are improved by alternate utilization of cutting and grazing. According to the results obtained from this experiment, it is suggested that alternate utilization of cutting and grazing is effective for dry matter yield, pasture availability and soil phsical characteristics regardless of pasture types in Korea.

• 대한교통학회:학술대회논문집
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• 대한교통학회 2007년도 제57회 학술발표회논문집
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• pp.521-529
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• 2007

• 대한전기학회논문지:전력기술부문A
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• 제55권10호
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• pp.426-432
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• 2006

This paper describes the concepts of Static Line Rating (SLR) and Dynamic Line Rating (DLR) and the computational methods to demonstrate them. Calculation of the line capacity needs the heat balance equation which is also used for computing the reduced tension in terms of line aging. SLR is calculated with the data from the worst condition of weather throughout the year. Even now, the utilization ratio is obtained from this SLR data in Korea. DLR is the improved method compared to SLR. A process for DLR reveals not only improved line ratings but also more accurate allowed line ratings based on line aging and real time conditions of weather. In order to reflect overhead transmission line aging in DLR, this paper proposes the method that considers the amount of decreased tension since the lines have been installed. Therefore, the continuous allowed temperature for remaining life time is newly acquired. In order to forecast DLR, this paper uses weather forecast models, and applies the concept of Thermal Overload Risk Probability (TORP). Then, the new concept of Dynamic Utilization Ratio (DUR) is defined, replacing Static Utilization Ratio (SUR). For the case study, the two main transmission lines which are responsible for the north bound power flow in the Seoul metropolitan area are chosen for computing line rating and utilization ratio. And then line rating and utilization ratio are analyzed for each transmission line, so that comparison of the present and estimated utilization ratios becomes available. Finally, this paper proves the validity of predictive DUR as the objective index, with simulations of emergency state caused by system outages, overload and so on.

• 보건행정학회지
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• 제1권1호
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• pp.42-53
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• 1991

Analysis of health care utilization is very important for health care policy development. Traditional studies of health care utilization were focused on measuring the level of health care utilization and on analyzing the determinants of health care utilization in the defined areas and populations. But there were some limitations in comparing the health care utilizations rates in traditional studies because so many factors were to be considered. Small area analysis is a method used to demonstrate substantial variations in health care utilization with popualtion-base use rates among similar geographic areas. This review discusses the methods, magnitude and trend of geographic variations, factors influencing small area variations, and makes suggestions for further study. Finally, the article discusses the necessity and feasibility of small area analysis in Korea.

• 대한전자공학회논문지SD
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• 제48권9호
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• pp.50-57
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• 2011

전형적인 버스 시스템 아키텍처는 마스터, 아비터, 디코더, 슬레이브와 같은 성분으로 구성되어 있다. 아비터는 여러 마스터가 동시에 버스를 사용하지 못하므로 선택된 버스중재 방식에 따라 버스를 중재하는 역할을 한다. 고성능을 위해 사용되는 일반적인 우선순위 방법에는 고정 우선순위, 라운드 로빈, TDMA, 로터리 방식 등이 있다. 일반적인 버스 중재 알고리즘은 버스 점유율을 고려하지 않고, 버스중재를 실시한다. 본 연구에서는 각각의 마스터 블록에서 버스 점유율을 계산한 버스 중재방식에 대해 제안하고 있다. TLM 성능분석 방식을 통해 제안하는 방식과 기존의 다른 버스 중재방식의 성능을 분석하였다. 성능검증 결과에서 일반적인 고정우선순위와 라운드로빈 방식은 버스점유율을 설정할 수 없었으며, TDMA와 로터리 중재방법은 100,000 cycle의 시뮬레이션에서 각각 50%와 70%의 버스점유율 오차가 발생하였다. 그러나, 제안하는 점유율 고려방식에서는 1,000cycle이상에서부터 99%이상 정확도를 보였다.

• 한국축산식품학회지
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• 제39권4호
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• pp.655-667
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• 2019

The present study aimed at investigating the effects of dry- and wet-aging methods on flavor compounds and sensory properties of low fat Hanwoo beef muscles. All the beef samples were obtained from 2-grade carcasses of Hanwoo cows. The beef samples used in the dry- and wet-aging methods were prepared in the forms of quarter beef (bone-in) and cuts (boneless), respectively. The dry-aging was carried out at $2^{\circ}C-4^{\circ}C$ and humidity of 65%-85%, while the wet-aging was done at $1^{\circ}C$ for 0, 20, 40, and 60 d. At each aging time, three muscles: longissmus thoracis (LT), glutaeusmedus (GM) and semimembranosus (SM) were taken from the corresponding quarters and cuts, and used for the flavor compounds and sensory analyses. Results showed that both aging methods significantly increased the concentrations of flavor compounds and total amount of all classes of the flavor compounds as the aging time increased (p<0.05). In the dry-aging method, the GM and SM muscles presented significantly higher total amounts of pyrazines and sulfur-containing compounds compared to the LT muscle (p<0.05). Both the aging methods improved the eating quality attributes, indicating by increased scores of sensorial attributes with increased aging time for all the muscles studied (p<0.05). However, compared to the wet-aging, the dry-aging method resulted in significantly higher scores of tenderness and flavor for the GM and SM muscles after 40 to 60 d. Thus, postmortem aging, especially the dry-aging method could be used to improve eating quality attributes (tenderness and flavor) of low fat beef muscles such as GM and SM.