박윤점 Survey Analysis of Regional Name.Hwp
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Optimal Rescue Ship Locations Using Image Processing and Clustering
S S symmetry Article Optimal Rescue Ship Locations Using Image Processing and Clustering Cho-Young Jung 1 and Sang-Lok Yoo 2,* 1 Department of Marine Science and Production, Kunsan National University, Gunsan 54150, Jeonbuk, Korea; [email protected] 2 Mokpo Maritime University, Mokpo 58628, Jeonnam, Korea * Correspondence: [email protected]; Tel.: +82-61-240-7175 Received: 15 October 2018; Accepted: 11 December 2018; Published: 2 January 2019 Abstract: Currently, globalization of the world economy has also resulted in a shipping volume increase. However, this growth in maritime traffic has led to increased risk of marine accidents. These accidents have a higher probability of occurring in regions where geographical features such as islands are present. Further, the positioning of rescue ships in a particular ocean region with a high level of maritime activity is critical for rescue operations. This paper proposes a method for determining an optimal set of locations for stationing rescue ships in an ocean region with numerous accident sites, such as in the Wando islands of South Korea. The computational challenge in this problem is identified as the positioning of numerous islands of varying sizes located in the region. Thus, the proposed method combines a clustering-based optimization method and an image processing approach that incorporates flood filling to calculate the shortest pixel value between two points in the ocean that detours around the islands. Experimental results indicate that the proposed method reduces the distance between rescue ships and each accident site by 5.0 km compared to the original rescue ship locations. Thus, rescue time is reduced. -
New Challenges Facing Asian Agriculture Under Globalisation
New Challenges Facing --------1-------- Asian Agriculture under Globalisation Volume II Edited by Jamalludin Sulaiman Fatimah Mohamed Arshad Mad Nasir Shamsudin 34 Farm Household Debt Problems in Jeonnom Province, Korea: ACose Study J.K. Park, P.S. Park and K.H. Song Introduction Farm loans have increased quite rapidly in the recent decades and the farm household debt 1 matter has become a serious socio-economic issue in Korea. In an effort to get around this critical issue, the government would prepare and implement impromptu new debt measures. Yet, the farm-debt ratio over farm income has been increasing very rapidly since the beginning of the WTO in 1995 and the IMF financial crisis of 1997, leading to 88 per cent as that of 2000, mainly due to low agricultural income. During the period of 1994 (the year right before the beginning of the WTO)-2000, farm household income had increased by 13.6 per cent but debt had increased by as much as 156.3 per cent (MAF, 2001 ). That is, farm household debt has been increasing very rapidly since 1995. Yet, the ratio of non-farm income accounted for around 32 per cent of farm income in recent years, which made it more difficult for farmers to repay their loans. This problem is getting even more complicated because of joint surety among the farmers, which would lead to total bankruptcy of farms including financially sound farms. Recently, more than 7 5 per cent of farm loans were utilised for the purpose of agricultural production. In order to cope with labour shortage problems due to the rural-urban migration of labour force, farmers began to purchase more agricultural machinery, which eventually led to the galloping farm household debts. -
Christian Communication and Its Impact on Korean Society : Past, Present and Future Soon Nim Lee University of Wollongong
University of Wollongong Thesis Collections University of Wollongong Thesis Collection University of Wollongong Year Christian communication and its impact on Korean society : past, present and future Soon Nim Lee University of Wollongong Lee, Soon Nim, Christian communication and its impact on Korean society : past, present and future, Doctor of Philosphy thesis, School of Journalism and Creative Writing - Faculty of Creative Arts, University of Wollongong, 2009. http://ro.uow.edu.au/theses/3051 This paper is posted at Research Online. Christian Communication and Its Impact on Korean Society: Past, Present and Future Thesis submitted in fulfilment of the requirements for the award of the degree of Doctor of Philosophy University of Wollongong Soon Nim Lee Faculty of Creative Arts School of Journalism & Creative writing October 2009 i CERTIFICATION I, Soon Nim, Lee, declare that this thesis, submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy, in the Department of Creative Arts and Writings (School of Journalism), University of Wollongong, is wholly my own work unless otherwise referenced or acknowledged. The document has not been submitted for qualifications at any other academic institution. Soon Nim, Lee 18 March 2009. i Table of Contents Certification i Table of Contents ii List of Tables vii Abstract viii Acknowledgements x Chapter 1: Introduction 1 Chapter 2: Christianity awakens the sleeping Hangeul 12 Introduction 12 2.1 What is the Hangeul? 12 2.2 Praise of Hangeul by Christian missionaries -
Development of Streamflow Drought Severity–Duration–Frequency Curves
Hydrol. Earth Syst. Sci., 18, 3341–3351, 2014 www.hydrol-earth-syst-sci.net/18/3341/2014/ doi:10.5194/hess-18-3341-2014 © Author(s) 2014. CC Attribution 3.0 License. Development of streamflow drought severity–duration–frequency curves using the threshold level method J. H. Sung1 and E.-S. Chung2 1Ministry of Land, Infrastructure and Transport, Yeongsan River Flood Control Office, Gwangju, Republic of Korea 2Department of Civil Engineering, Seoul National University of Science & Technology, Seoul, 139-743, Republic of Korea Correspondence to: E.-S. Chung ([email protected]) Received: 5 October 2013 – Published in Hydrol. Earth Syst. Sci. Discuss.: 3 December 2013 Revised: 16 July 2014 – Accepted: 22 July 2014 – Published: 3 September 2014 Abstract. This study developed a streamflow drought also derived to quantify the extent of the drought duration. severity–duration–frequency (SDF) curve that is analogous These curves can be an effective tool to identify streamflow to the well-known depth–duration–frequency (DDF) curve droughts using severities, durations, and frequencies. used for rainfall. Severity was defined as the total water deficit volume to target threshold for a given drought dura- tion. Furthermore, this study compared the SDF curves of four threshold level methods: fixed, monthly, daily, and de- 1 Introduction sired yield for water use. The fixed threshold level in this study is the 70th percentile value (Q70) of the flow dura- The rainfall deficiencies of sufficient magnitude over pro- tion curve (FDC), which is compiled using all available daily longed durations and extended areas and the subsequent re- streamflows. The monthly threshold level is the monthly ductions in the streamflow interfere with the normal agricul- varying Q70 values of the monthly FDC. -