• 농촌계획
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• 제19권4호
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• pp.33-46
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• 2013

The present study aims to provide an analytical framework for achieving aid and development effectiveness of agricultural cooperation with a demand-oriented perspective. This paper pays particular attention to categorize the stages of agricultural development of African recipients to identify demands for agricultural aid of the categorized groups. To do so, first of all, it establishes theoretical background to apply the demand-oriented concept and utilize the phase of agricultural development as an alternative for aid and development effectiveness. On the basis of the theoretical robustness, it conducts a series of analyses to categorize the African recipients by the development stages, incorporating factor analysis, cluster analysis and comparison between the present-future agricultural development levels. The findings propose analysis indicators for phase of agricultural development and clustered results including 18 countries of KAFACI members and priority countries in Africa. In addition to the practical application of the results, the methodological flow can be used as steps for sketching a future roadmap to construct the demand-oriented ODA(Official Development Assistance) plan. This paper also offers implications regarding ODA strategy of Korea in response to the phase of agricultural development and the aid demands.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2010년도 추계학술대회
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• pp.215-218
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• 2010

국내 Smart Phone 수요가 급속도로 증가함에 따라 멀티미디어 서비스의 활용도 다양해졌다. 이에 따라 Smart Phone 사용자들은 Jail Breaking과 Rooting 등 해킹을 하여 멀티미디어 저작권 콘텐츠를 불법으로 이용하고 있다. 또한 이동통신 단말로서 범죄와 관련성이 높아서, 생성, 저장된 디지털 증거는 증거의 활용도가 높아 모바일 포렌식 연구가 필요하다. 본 논문은 Smart Phone 저작권 위반과 포렌식 적용 방안에 대한 연구이다. Smart Phone 저작권 침해 현황과 관련 위반사항들을 방송, 영화, 음악, e-book 등으로 항목별로 조사하고, 포렌식에 적용 하는 방법에 대해 연구하였다. 본 연구 결과는 과학수사 발전과 포렌식 발전에 기여 할 수 있을 것이다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.1613-1617
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• 2009

As demand regarding a recent energy-saving rises, the using ratio of the aluminum plate in manufacturing of a railroad vehicle has been increasing. The aluminum structure to be applied to a railroad vehicle is divided to single skin and double skin, and the main aluminum product is mainly Al 6005 extrude and Al 5083 rolled in domestic market. The Al 6005 alloy is applied heat treatment in order to improve the strength of material. Therefore there is the disadvantage that the strength of welding zone decreases compare with base material's if you apply to fusion welding like MIG(metal inert gas) welding. In this paper we tried to apply friction stir welding to solve these problems. In this study we investigated how tensile strength and fatigue strength were changed in case of changing the shoulder diameter of thread tool.

• 한국비블리아학회지
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• 제26권4호
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• pp.105-121
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• 2015

이용자의 수요를 표현하는 트리거가 누적되어 임계치에 다다를 때 사서의 개입없이 자동으로 전자책이 구입되는 PDA 모델은 이용자의 수요에 부합하는 장서를 구성하면서도 도서관의 수서 예산을 가장 효과적으로 지출할 수 있는 새로운 장서 개발 방법론이다. 본 연구는 우리에게 아직 생소한 PDA의 개념, 작동 원리, 운영 현황 등을 살펴보고, 컨소시엄 기반의 한국 대학도서관 해외 전자책 수서 모형에 적용할 수 있는 방안을 모색해 보았다. 한국에서는 다양한 해외 전자책 수서 모형이 적용되고 있으나, 최종 이용자의 수요에 기반한 PDA 일반 모델이나 증거기반선정 모델을 컨소시엄 단위로 응용함으로써 비용 효율성과 이용 가치 제고에 기여할 수 있을 것이다.

• 한국산업융합학회 논문집
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• 제3권2호
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• pp.167-178
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• 2000

Software RAID(Redundant Arrays of Inexpensive Disks) is defined as a storage system that provides capabilities of hardware RAID, and guarantees high reliability as well as high performance. In this paper, we propose an enhanced disk scheduling algorithm and a scheme to guarantee reliability of data. We also design and implement software RAID by utilizing these mechanism to develop a storage system for multimedia applications. Because the proposed algorithm improves a defect of traditional GSS algorithm that disk I/O requests arc served in a fixed order, it minimizes buffer consumption and reduces the number of deadline miss through service group exchange. Software RAID also alleviates data copy overhead during disk services by sharing kernel memory. Even though the implemented software RAID uses the parity approach to guarantee reliability of data, it adopts different data allocation scheme. Therefore, we reduce disk accesses in logical XOR operations to compute the new parity data on all write operations. In the performance evaluation experiments, we found that if we apply the proposed schemes to implement the Software RAID, it can be used as a storage system for small-sized video-on-demand servers.

• 가정간호학회지
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• 제24권2호
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• pp.151-159
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• 2017

Purpose: The purpose of this study was to identify nursing demands according to general characteristics and diseases of inpatients to whom comprehensive payment systems apply. Methods: This study was designed as a retrospective research study using the electronic medical records of Hospital Information Systems (HIS). Participants were 836 subjects who received seven Diagnostic-Related Group diagnoses among inpatients of one tertiary hospital from January 1, 2015 to June 30, 2015. Data were analyzed using SPSS 23.0. Results: Nursing demand among inpatients'seven Diagnostic-Related Group diagnoses was relatively higher for appendectomy, cataract surgery, and hysterectomy, while there was a significant difference depending on the age, duration of admission, admission path, hospital entry method and Diagnostic-Related Group. Conclusion: The results can be utilized as basic data on accurate nursing demands that reflect various features of patients.

• 에너지공학
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• 제22권1호
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• pp.1-7
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• 2013

본 논문에서는 전국 521가구를 대상으로 조사한 횡단면 자료를 분석에 이용하여 주택용 전력의 수요함수를 추정하고자 한다. 주택용 전력의 수요함수는 수용가의 전력 수요행태에 대한 정보를 제공하여 가격과 같은 주요 정책변수의 효과를 사전적으로 진단하는 데, 그리고 수요예측을 하는 데 유용하게 활용된다. 수요함수의 모수에 대한 강건한 추정치를 얻기 위해 오차항의 분포에 있어서 동분산 및 정규성의 가정을 하지 않는 최소절대편차 추정량을 사용하였다. 가격탄력성 및 소득탄력성은 각각 -0.68 및 0.14로 추정되었으며 유의수준 10%에서 통계적으로 유의하였다. 가격탄력성 및 소득탄력성은 모두 가격 및 소득 변화에 비탄력적인 주택용 전력수요의 특징을 잘 보여주고 있다. 이는 주택용 전력이 필수적인 재화로서 가격이 변동된다고 해서 급격하게 수요를 조정하기 어려우며 소득이 변동된다고 해서 수요가 빠르게 조정되지 않음을 시사한다.

• 한국응급구조학회지
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• 제12권2호
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• pp.37-43
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• 2008

Purpose : It was to improve medical direction system through presenting need of doctor and paramedic in Korean Fire Service. Methods : This study was conducted by applying demand coefficients(4 for doctor, 3 or 4.5 for paramedic) to some data on medical director, paramedic, ambulance from National Emergency Management Agency. Results : Number of medical director & paramedic were 4 & 1,217. Number of necessary doctor for medical direction was 64 or 28(in case of direct medical direction) & 16 or 7(in case of indirect medical direction). Number of necessary paramedic for direct medical direction was 492(in case of 35% ALS ambulance) & 1,062(in case of 50% ALS ambulance). Conclusions : To improve quality & efficiency of medical direction brought up need of amendment of the Emergency Medical Services Act to apply indirect medical control such as standing orders, protocol, case review.

• 전기학회논문지
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• 제58권6호
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• pp.1087-1092
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• 2009

This paper presents a method for improvement of capacity payment in CBP(cost based pool) market. Capacity payments have been used as common mechanisms in various pools for compensating generators recognized to serve a for reliability purpose. Ideal pricing for capacity reserves by definition achieves a balance between economic efficiency and investment incentives. That is, prices must be kept close to costs, but not so low as to discourage investment. However, the price set is not easy. This paper concludes with market design recommendations that apply fuzzy theory for improvement of capacity payment. Following this model, market participants decided on their own based on their forecast to the market demand and the payment for it.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.2490-2495
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• 2005

The scheduling of plant should be determined based on the product demands correctly forecasted by reasonable methods. However, because most existing forecasting packages need user's knowledge about forecasting, it has been hard for plant engineers without forecasting knowledge to apply forecasted demands to scheduling. Therefore, a forecasting module has been developed for plant engineers without forecasting knowledge. In this study, for the development of the forecasting module, an automatic method using the ARIMA model that is framed from the modified Box-Jenkins process is proposed. And a new method for safety inventory determination is proposed to reduce the penalty cost by forecasting errors. Finally, using the two proposed methods, the web-based automatic module has been developed.