• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 하계학술대회 논문집 D
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• pp.914-916
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• 1997

This paper presents the development of an Artificial Neural Networks(ANN) for Short-Term Load Forecasting(STLF). First, used historical load data is divided into 5 patterns for the each seasonal data using Kohonen networks. Second, classified data is used as inputs of Back-propagation networks for next day hourly load forecasting. The proposed method was tested with KEPCO hourly record (1994-95) and we obtained desirable results.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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• pp.460-462
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• 2009

This study has analyzed the scale, location, resource potential and feasibility of offshore wind farm scientifically and systematically based on the national wind map and GIS (Geographic Information System). For long-term wind power development, this study pursues siting strategy building, selection of target area and deciding development priority as well as the presenting a basis for assessment that are necessary for policy decision making by making theme layers under GIS environment. According to the analysis after organizing technological development by stages, even if only the most suitable sites are developed among the area of offshore wind farm candidates that can be developed under the current technological standard, it has been evaluated as being able to develop about 3 times of the wind power dissemination target until 2012. It is expected that about 5% of territorial water area can be developed in a short-term future while the southern offshore area possessing relatively favorable wind resource than the western offshore has been identified as the most feasible site. While about 23% of territorial water area has been classified as potential area for offshore wind farm development in a long-term future, even Jeju Island and offshore of Ulsan possessing excellent wind resource have been analyzed as feasible sites. The feasibility assessment of offshore wind farm development established by this study is expected to assist national strategy building for accomplishing the wind power dissemination target.

• 한국노년학
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• 제37권1호
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• pp.83-102
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• 2017

본 연구는 생애과정관점에 기초하여 세대 간 지원교환에서 단기적 호혜성과 장기적 호혜성의 원리가 관찰되는지 확인하고, 자녀의 젠더에 따른 차이를 비교하는 것을 목적으로 한다. 장기적 호혜성을 살펴보기 위하여 자녀가 성인기전이과정 동안 부모에게 경제적 지원을 받은 정도가 중년이 된 자녀가 노부모에게 지원을 제공하는데 영향을 미치는지 확인하였고, 단기적 호혜성이 발견되는지 알아보기 위하여 현재 중년자녀가 노부모에게 지원을 받고 있는 것과 자녀가 노부모에게 지원을 제공하는 행동 사이의 관련성을 살펴보았다. 본 연구는 '한국 베이비부머 패널 조사' 2차년도(2012년 수집) 자료 중 자신의 부모 중 적어도 한 명 이상 생존하고 있는 베이비부머 남성 731명과 여성 893명을 연구대상으로 하였으며, 기술분석과 이항로지스틱 회귀분석을 실시하였다. 연구결과 첫째, 아들은 딸에 비해 성인기 전이과정 동안 부모에게 더욱 높은 수준의 경제적 지원을 받은 것으로 나타났지만, 성인기 전이과정 동안 더 많은 경제적 지원을 받은 경험과 중년이 된 아들이 노부모에게 경제적지원이나 도구적 지원을 제공하는 행동 사이에는 관련성이 없는 것으로 나타나 장기적 호혜성이 발견되지 않았다. 둘째, 아들과 노부모 사이의 관계에서 단기적 호혜성이 발견되었다. 셋째, 딸이 노부모에게 도구적 지원을 제공함에 있어 단기적 호혜성과 장기적 호혜성의 원리가 모두 발견되었다. 성인기 전이과정 동안 더 많은 경제적 지원을 받은 경험과 현재 노부모에게 지원을 제공받고 있는 것은 중년의 딸이 노부모에게 도구적 지원을 제공할 가능성을 높이는 것으로 확인되었다. 넷째, 딸이 노부모에게 경제적 지원을 제공하는 행동에 있어서는 단기적 호혜성과 장기적 호혜성의 원리가 모두 발견되지 않았다. 딸이 노부모에게 경제적 지원을 제공하는 행동은 아들의 경우와 마찬가지로 자녀가 보유한 경제적 자원과 노부모의 경제적 필요와 밀접하게 관계되는 것으로 나타났다. 본 연구를 통해 중년자녀가 노부모에게 지원을 제공함에 있어 장기적 단기적 호혜성의 원리가 나타나는 것을 확인했으며 이러한 원리가 자녀의 젠더와 지원영역에 따라 다르게 나타날 수 있음을 발견하였다. 본 연구는 한국의 맥락에서 자녀의 젠더에 따라 다르게 주어지는 부양책임을 고려하고, 보다 장기적 시각에서 세대 간 지원교환의 호혜성 원리를 살펴보았다는 점에서 의의를 갖는다. 후속연구에서는 보다 다양한 영역을 고려하여 장기적 호혜성을 바라보고, 세대관계가 놓인 친족관계 맥락으로 시각을 확장하는 것이 필요할 것이다.

• Asia pacific journal of information systems
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• 제29권2호
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• pp.308-327
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• 2019

The concept of sharing economy has received rich attention in recent years. As a typical type of business model in the sharing economy, online short rent has been paid attention by both industry and academia. In this study, we find trust to be a critical determinant to the success of online short rent platforms. Based on three dimensions of trust theory, i.e., ability, benevolence and integrity, we investigate the factors influencing tenant' willingness to participate in online short rent. We further examine the extent to which trust can influence the number of sales and comments of rooms listed at online short-term rent platforms, which can represent tenant' willingness to participate in the sharing economy. The results show that the trust dimensions represented by a landlord's personal characteristics have significant positive correlations with the number of sales and comments. For example, the real name authentication and the sesame score can represent the trust integrity; online replay ratio and the average confirmation time representing the trust sincerity, and the order acceptance ratio representing the trust ability. On this basis, we proposed some recommendations for both platforms and landlords. For example, the landlords can improve the tenants' trust by authenticating his/her real name, replying actively and timely. For platforms, when they make housing list ranking rules, they can take the landlord's personal attributes that may affect trust into consideration. Moreover, platforms can also allow landlords to supply value-added services to improve service quality and ultimately promote the virtuous circle of the platform ecosphere. Through conducting the empirical research on a particular application of the sharing economy, we aim to fill the research gap of this field in China and provide theoretical and practical contributions to the future development of online short rent.

• 원자력산업
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• 8호
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• pp.35-52
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• 1978

The geologically favourable areas for the occurrence of uranium in Australia and the geology of the major deposits are discussed as well as exploration programs and expenditures. Australis has no short-term requirement for nuclear power generation and its

• 한국가스학회:학술대회논문집
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• 한국가스학회 2004년도 추계학술발표회 논문집
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• pp.158-163
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• 2004

• 한방비만학회지
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• 제20권2호
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• pp.122-130
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• 2020

Objectives: This study is a practice based research conducted to investigate the effectiveness and safety of a 5-day short-term diet program ('Oil-rescue' program) designed to reduce the adverse events and initial dropout rate in obesity treatment. Methods: We retrospectively analyzed 4 Korean medicine clinic patient data who completed 'Oil-rescue' program which is consisting of Gambi-hwan, Bium-hwan, Butgiban-hwan and Jayoon Kyungokgo. The weight change before and after participating 'Oil-rescue' program was primary outcome of our study. Changes in body mass index, body fat mass, skeletal muscle mass, body water content, lean body mass, protein, and minerals were also measured. Results: A total of 35 patients who satisfied the eligible criteria were finally included. The body weight decreased from 69.45±11.86 kg to 67.43±11.58 kg, a total of 2.02±1.03 kg (P<0.001). Body fat mass decreased from 25.77±7.45 kg to 24.98±7.26 kg, a total of 0.78±1.21 kg (P<0.001). Body mass index decreased from 26.39±3.64 kg/㎡ to 25.64±3.49 kg/㎡, a total of 0.75±0.41 kg/㎡. (P<0.001). A total of 15 patients had side effects such as diarrhea, abdominal pain, and insomnia, but all were mild. 16 out of 35 people switched to long-term obesity treatment programs. Conclusions: Through this retrospective practice based research, it was found that the 'Oil-rescue' program effectively reduced body weight, body fat, and body mass index, and the other obesity related parameters. It was a relatively safe and effective short-term obesity treatment program.

• 대한조선학회논문집
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• 제55권4호
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• pp.341-349
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• 2018

Recently, it has been reported that the whipping response, which is the elastic phenomenon of the ship, may be one of the causes of the ship accident. Unfortunately, the commonly used methodology for evaluating the whipping effect effectively has not been developed yet. In this study, we developed a procedure to estimate the whipping effect of hull in actual design stage. Fluid-structure interaction analysis was performed for a dominant short term sea state to obtain the time series data of vertical wave bending moment including the whipping response by slamming. In order to estimate the whipping effect by using the time series, some signal processing and statistical techniques such as low pass filtering, Weibull fitting and so on, were applied. the hydro-elasticity analysis was performed on container ships of various sizes to evaluate the whipping effect. The parameters that can affect the response of the hull vibration was selected and the effect of these parameters on whipping was analyzed.

• 농업과학연구
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• 제40권4호
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• pp.385-394
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• 2013

Short-term agricultural machinery rental system has been operated by agricultural extension organization of local government (agricultural technology center) and sponsored by Ministry of Agriculture, Food, and Rural Affairs, to improve utilization efficiency and save agricultural production cost through joint utilization of agricultural machinery. This study was conducted to analyze current status of the rental system operation and provide recommendations for future direction. Question survey was conducted for officers in charge of the rental system in the technology center, and strategic improvement was suggested through importance performance analysis (IPA). Survey results showed that 11 issues should be reformed or improved by 2015, which is not practically feasible. IPA analysis resulted that administration and manpower support, cooperation between federal and local organizations, and cooperation with other organizations should be focused for successful operation of the rental system. Issues that seem to happen after 2015 need to be handled as future research.

• 한국도로학회논문집
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• 제12권4호
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• pp.1-9
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• 2010

본 연구는 유고로 인한 대기행렬, 통행시간과 같은 혼잡정보를 예측하여 제공하는 것을 목표로 하며, 이것은 교통시설 이용자와 운영자 모두에게 효율적인 대안선택 및 운영을 위한 중요한 요소로 활용된다. 이러한 예측된 사고영향 정보의 제공으로 인하여, 이용자는 유고 구간에 대한 정보를 사전에 인지하여 지체를 최소화 할 수 있고, 운영자는 현재 유고영향을 받을 것으로 예상되는 구간을 효율적으로 관리할 수 있을 것이다. 본 연구에서는 연속류 본선구간에서 단기예측기법을 적용한 유고영향 예측모형을 제안하였다. 본 연구에서 제안한 모형은 MARE를 통하여 상대적인 오차를 비교분석하여, 예측력이 뛰어난 모형을 정립하였다. 본 연구를 시작으로 미시적인 사고영향 예측 모형이 개발된다면 사고발생 시 지체를 최소화하고 사회적인 비용을 줄일 수 있을 것이다.