• Korean Journal of Heritage: History & Science
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• v.46 no.3
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• pp.32-47
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• 2013

The concepts of authenticity and integrity are very important standards to be satisfied in the conservation and utilization of Scenic Site (名勝), literally meaning the places of scenic beauty, as a public heritage. These concepts, which are frequently used in the conservation and utilization of the World Heritage inscribed by UNESCO, can be applied to all kinds of heritages. Recently, it has been widely recognized that the concepts of authenticity and integrity are not separable but interconnected. Accordingly, the maintenance of authenticity in Scenic Site should include not only the physical preservation but also the succession of historical tradition of enjoyment. The integrity in Scenic Site refers to the physical and social conditions under which authenticity can be satisfactorily protected. The aim of this study is to reconstruct the traditional ways of enjoying historical and cultural Scenic Site with emphasis on the Yeongnam Region and make a critical examination of cultural property protection areas that have been designated. Then, this study aims to find the ways to utilize Scenic Site to secure the standards of authenticity and integrity. As a result it was discovered that cultural property protection areas are not designated well enough to satisfy the standards of authenticity and integrity. Considering the fact that cultural property protection areas are the minimal institutional systems to maintain the original value of Scenic Site, it is necessary to pay more careful attention to the ways of securing the authenticity and integrity in Scenic Site.

• Research in Plant Disease
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• v.26 no.4
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• pp.229-238
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• 2020

Field validation of PBcast, an infection risk model for Phytophthora blight of pepper, was conducted through a designed field experiment in 2012 and 2013. Conduciveness of weather conditions at 26 locations in Korea in 2014-2017 was also evaluated using PBcast. The PBcast estimated daily infection risk (IR) of Phytophthora capsici based on weather and soil texture data. In the designed filed experiment, four treatments including routine sprays at 7-day intervals (RTN7), forecast-based sprays when IR reached 200 (IR200) and 224 (IR224), and no spray (CTRL) were compared in terms of disease incidence and number of sprays recommended for disease control. In 2012, IR had reached over 200 twice, but never reached 224. In 2013, IR had reached over 200 three times and once higher than 224. The RTN7 plots were sprayed 17 and 18 times in 2012 and 2013, respectively. Weather conditions throughout the country were generally conducive for Phytophthora blight and 3-4 times of fungicide sprays would have been reduced if the PBcast forecast information was adopted in the decision-making for fungicide sprays. In conclusion, the PBcast forecast would be useful to reduce fungicide applications without losing the disease control efficacy to protect pepper crop from Phytophthora blight.

• Journal of Environmental Impact Assessment
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• v.30 no.2
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• pp.89-104
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• 2021

This study investigated the public opinion on the use and conservation management of national park, to manage the growing demand of national park visit and to support the policy direction of national park. So far, various surveys and big data analysis on the use and perception of national park have been conducted, but there have been limitations such as lack of survey questions on issues in park management and use. In addition, the object of the previous studies were limited to the national park visitors; therefore, this study expanded the object of survey from national park visitors to ordinary citizens. Unlike previous studies conducted only on national park visitors, ordinary citizens relatively prefered bottom areas rather than high-altitude ones. A policy to limit the visit to high-ridge area of mountain is being currently driven; however, the survey results of ordinary citizens suggested to maintain current policies or to increase visitor reservations system within narrow limits. On the other hand, the proportion of citizens who have used the visitor-reservation system was very small. We discuss the difference between national park visitors and ordinary citizens and the policy conditions according to changes in park management principles and public attitudes toward national parks.

• Journal of Korea Society of Industrial Information Systems
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• v.16 no.5
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• pp.197-205
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• 2011

Since Intelligent Transport Systems(ITS) is a complex project combining technology and system of transportation, information and communication and civil engineer, it needs a specialized management activities. However, it is difficult to judge who has responsibility for a shoddy and fault construction since the role between project management and supervision is very ambiguous. The aim of this study is propose an efficient project management and supervision for ITS reflecting the characteristics of ITS. Therefore, we suggest a statistical models using nonlinear regression model to prepare the project management and supervision compensation criteria, hence, we choose the realistic and validation statistical model.

• 한국벤처창업학회:학술대회논문집
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• 2017.04a
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• pp.63-63
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• 2017

국내 경제상황의 어려움으로 인한 기업의 고용감소와 그에 따른 일자리 부족 때문에 청년 실업문제가 사회적 이슈로 대두되었고, 일자리에 대한 취업의 다른 대안으로 창업에 대한 관심이 고조되고 있다. 청년 일자리를 해결하기 위해서는 청년층의 중심이라 할 수 있는 대학생의 창업을 활성화할 필요가 있고, 이를 위해서는 다양한 분야를 전공하고 있는 대학생의 학문적 특성을 고려하여 대학생의 창업의도를 높이는 것이 필요하다. 해외의 경우 다양한 계층에 대한 연구를 통해 계층별 창업의도에 미치는 영향요인을 파악하고 이를 관련 정책 및 교육에 반영함으로써 창업의도를 지속적으로 향상시키고 있다. 본 논문에서는 현재 교양과목으로 이루어진 창업강좌를 수강하는 국내 대학생들이 전공에 따른 창업의지에 대한 생각을 살펴보고자 하며, 그들의 창업의지를 보다 고취시키기 위해 필요한 방안들을 도출하고자 한다. 연구방법으로 국내 창업교육을 받고 있는 대학생을 대상으로 설문조사를 진행하였고, 설문조사결과에 대한 신뢰성 및 타당성을 분석한 후 구조방정식을 통해 본 연구에서 설계한 가설을 검증하며, 가설 검증 결과를 분석하게 된다. 독립변수로는 잠재적 창업가의 특성을 파악할 수 있는 개인적 특성 요인(성취욕구, 위험감수성향, 혁신성), 환경적인식 요인(네트워크, 정부의 창업지원제도), 교육적인식 요인(창업강좌, 창업멘토링)을 선정하였고, 조절변수로서 대학생 전공(이공계와 비이공계), 그리고 종속변수로서 창업의지를 설정하여 연구모형을 구성했다. 본 연구를 통해 대학생들의 전공(이공계와 비이공계)에 따른 창업의지 확인과 함께 창업교육에 대한 교과목 설계, 목표설정, 학습 방향 및 방법들을 보완할 수 있는 기회를 얻을 수 있음을 제시하고자 한다.

• Journal of the Korea Society of Computer and Information
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• v.9 no.1
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• pp.111-121
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• 2004

This paper presents the methods of evaluating validity and effectiveness of informatization budget investment for e-Government, through the preliminary evaluation. the progress evaluation and the Post evaluation of the investment, and a quantitative evaluation model which improves conformance of IT ROI (Return On Investment) using the evaluation results. the right evaluation targets of informatization investment for the development project to GDOC(Government electronic Document Distribution Center), and KPIs(Key Performance Indexes) which is enable to evaluate objectively effectiveness in the preliminary and the post evaluation phases are developed, and according to using the quantitative evaluation model . improved effectiveness evaluation results for each index in the point of view of usage and innovation are come out.

• The KIPS Transactions:PartB
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• v.17B no.1
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• pp.63-68
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• 2010

In this paper, we propose a multiresolution stereo matching method based on genetic algorithm using edge information. The proposed approach considers the matching environment as an optimization problem and finds the solution by using a genetic algorithm. A cost function composes of certain constraints which are commonly used in stereo matching. We defines the structure of chromosomes using edge pixel information of reference image of stereo pair. To increase the efficiency of process, we apply image pyramid method to stereo matching and calculate the initial disparity map at the coarsest resolution. Then initial disparity map is propagated to the next finer resolution, interpolated and performed disparity refinement. We valid our approach not only reduce the search time for correspondence but alse ensure the validity of matching.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.14 no.1
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• pp.38-46
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• 2000

This study have established proper mathematical equivalent model of Brushless DC (BLDC) motor and estimated the motor parameter by means of the back-emf measurement as being the step input to the controlled target BLDC motor. And the validity of proposed estimation method is confirmed by the test result of step response. As well, we have designed the reasonable digital controller as a consequence of the root locus method which is obtained from the open-loop transfer function of BLDC motor with hall sensor, and the determination of control gain for variable speed control. Here, revised Ziegler-Nichols tuning method is applied for the proper digital gain establishment, and the system stability is verified by the frequency domain analysis with Bode-plot and experimentation.

• Aerospace Engineering and Technology
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• v.7 no.2
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• pp.131-143
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• 2008

Slag mass deposition was required to predict performance accurately of KSLV-I kick motor(KM) system. The validation of the numerical analysis was performed with mass flow rate measured at 4th ground test of the KM. The study described here included internal flow field of KM at various time steps during burning. Slag mass accumulation was computed through the aluminum oxide particle paths to deviate from the gas flow streamlines in flight. These numerical analysis was performed with Fluent 6.3 program The effects for the acceleration, origins and diameters of the aluminum oxide particles was analyzed, finally the total slag mass accumulation was acquired. We confirmed that the slag mass deposition was agreement well with predicted slag mass based on kick motor the grounded test.

• Journal of Environmental Policy
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• v.12 no.4
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• pp.93-117
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• 2013

We analyze the optimal hedge ratio and hedge effectiveness with different periodic times between spot and futures on EUA and CER based on EU-ETS. The Main finding are as follows. The first, hedging model which considers the time-varying variance is not more accurate than non-time-varying hedging models. The second, optimal hedge ratios are different even though hedge effectiveness is similar for the hedging purpose. The third, hedge effectiveness has uncertainty if hedge period is short. In case of EUA it needs to over 6 weeks and CER needs to over 7 weeks. The fourth, cross hedge with CER futures is not suitable for profit ratios.