• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.05a
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• pp.209-211
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• 2018

목포항을 중심으로 항만 및 항만배후부지가 기후변화 영향에 따라 해양으로부터 발생 예상되는 자연재해(폭풍해일)로 인해 인명과 재산을 보호하기 위한 근원적 자연재해(폭풍해일) 방지방안 연구를 통해 선재적 대안을 제시함으로서, 향후 목포항을 재해안전항만으로 구축하는데 도움을 드리고자 본 연구를 수행하였습니다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2001.11b
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• pp.888-891
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• 2001

Effects of backing conditions on the impedance tube measurement are investigated experimentally, by using several pairs of generally employed end conditions. The results show that the measured values are similar for most of pairs, except the case of using an open pipe condition. In addition, the random error is investigated in the viewpoint of the variation of test conditions. The multi-termination method is suggested for minimizing such a random error.

• Review of KIISC
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• v.31 no.3
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• pp.29-38
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• 2021

산업안보위협은 개인 또는 전·현직자의 이익을 위해 다양한 경로를 통해 지속적으로 산업기술들을 유출하였지만, 최근에 는 국가에서 지원하는 사이버 공격자 그룹을 활용하여 신기술을 탈취하려는 목적의 사이버공격을 감행하고 있어 현재 산업체뿐만 아니라, 국가경제의 손실이 매우 크다. 따라서 본 논문에서는 정보탈취를 목적으로 하는 국가 배후 해킹조직의 침투 경로 및 공격 단계와 국가핵심기술 유출 사례와 연계하여 MITRE사(社) ATT&CK 프레임워크를 활용하여 산업기술위협에 대응할 수 있는 기술을 소개 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.07a
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• pp.111-114
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• 2020

우리나라에 대한 사이버 공격의 배후로 추정되는 북한의 사이버조직에 우리는 얼마나 알고 있을까? 사이버 공간의 특성상 공격 흔적이 남지 않기에 언론사들은 북한의 사이버조직과 관련하여 일관된 정보를 거의 제공하지 못하고 있다. 따라서 갈수록 진화하는 북한의 사이버 공격에 효과적으로 대비하기 위해 본 논문에서는 비록 인터넷에 공개된 자료(논문, 기사 등)라 할지라도 이를 통해서 북한 사이버조직 현황 및 주요 공격사례를 중심으로 관련 정보를 살펴보고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.34-35
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• 2022

항로표지인 등부표는 항해자에게 해역환경 및 위험요소에 관한 정보전달을 위해 형상 및 광원의 섬광을 이용하고 있으며, 이때 광원의 섬광은 다양한 주기를 가지고 동작한다. 최근 주요항만에는 다양한 항만시설이 배치됨에 따라 배후광이 증가하고 있으며, 또한 복잡한 해안을 따라 다수의 항로표지들이 배치되어 있어, 등부표의 정보 전달 시인성을 높이기 위해 다양한 점멸 방식이 운용중이다. 대표적으로 동기점멸과 순차점멸 방식이 있으며, 이에 관련하여 국내외 항만 및 타분야 관련 규격 및 적용사례 등에 대해 조사 분석하였다.

• Journal of the Economic Geographical Society of Korea
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• v.9 no.2
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• pp.225-242
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• 2006

This study aims to analyze the spatial distribution pattern of international trade. The method is to analyze the principal components by changing interaction attribute matrix of four dimensions (hinterland, gateway, foreland and commodities) into two dimension matrix. The study area is the territory region of Cheongju clearance depot in inland. The result are as follows : Major spatial patterns of regional connections by hinterland, gateway and foreland are, in the case of exports, ten patterns and in the case of imports come to nine. Composition of major export and import commodities in Cheongju clearance depot are similar, but precision instrument manufactured commodity and nonmetal mineral are remarkable in export and mineral manufactured commodity machinery and electronic manufactured commodity are remarkable in import. Gateway are similar to export and import, but Incheon international airport is used more in the case of import. And Cheongiu international airport is used for some commodities and is remarkable as a foreland of import for the areas outside of Chungcheongbuk-do.

• Journal of the Korean association of regional geographers
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• v.14 no.1
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• pp.27-39
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• 2008

The propose of this research paper is to clarify the formative process of the lake-like swamps formed in channels of Nakdong-gang river and its tributary, Gumho-gang river. In order to understand the formative process of lake-like swamps, I compared topographical maps of three years(1918, 1962, 2005), analyzed the outline change of swamps, and draw their cross-sectional view and analyzed the horizontal distribution of particle size. Results of analysis are as follow. First, Saegang swamp and Geumgang swamps are residual swamps which are formed in abandoned distributary channels of braided reach. In braided reach, tributaries wind freely to create a new channel or to eliminate a old channel. Second, the Ssiksil swamp and Nat swamp are yazoo-type swamps. Their stream channels run parallel to the natural levees, as it blocks the waterway of a effluent tributary flowing from backward mountains to main stream. Third, the Secheon, Hochon and Jinchon swamps are backswamp behind natural levee. As main stream overflows, natural levee and back swamp are formed. Later flowing water of next bigger flood enter through natural levee into backswamp, create a channel following backswamp.

• Journal of Korea Port Economic Association
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• v.24 no.4
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• pp.1-23
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• 2008

In order for Busan New Port to secure more trading volumes than the competing ports at home and abroad, an alternative plan for the new port management policy needs to be sought. By the way, aiming to minimize trial and error while maximizing effect in establishing and driving the new port management policy, there is necessity of referring to the developmental strategies of the advanced ports such as Singapore and Hong Kong that are possessing the globally leading position as well as maximizing the substantial value added and the employment-creation effect even qualitatively. Accordingly, the purpose of this study is to propose for a reasonable development strategy for Busan New Port in line with conditions and characteristics of Busan New Port by comparing and analyzing conditions and characteristics of these two advanced ports and by comparative analysis on the developmental strategy according to this.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.38 no.5
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• pp.761-769
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• 2018

Urban safety has not been substantially considered in urban regeneration projects, although there is increasing interest in safety issues lately. However, there is limited research on the safety of port hinterland residential areas. Therefore, this study 1)selects appropriate safety indicators, and 2)identifies the most vulnerable sites in Dong-gu and Nam-gu in Busan using ArcGIS. 3)Lastly, our study asks residents of the selected sites to examine their awareness of the urban regeneration projects occurring in the vicinity. The respondents are fairly well aware of the ongoing urban regeneration projects, the effect of which on the improvement of safety are thought to be negative. The weakest point they indicated was accidents regarding aged buildings, and they also care more about life safety than natural hazard. These findings must be taken into account in the next urban regeneration projects in the Dong-gu and Nam-gu area.

• Journal of the Korean association of regional geographers
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• v.10 no.2
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• pp.300-312
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• 2004

The geomorphological environment of Suwon Basin consists of two great elements: mountains which surround the basin and plains and low relief hills by differential erosion of granitic area. Nothern and eastern parts of the basin surround with gneissic mountains(Mt. Kwangkyo), southern and western parts of the basin with granitic mountains(Mt. Chilbo, etc). The basin developed on granitic saprolites is composed of two types of sub-order geomorphic elements: flood plains alongside four river(Whangkuji-chon, Seoho-chon, Suwon-chon, Wonchonri-chon) and aligned hills and mounts between the river side plains. While the low down lands provided the spatial condition for the extention of downtown of Suwon, the gneissic mountains have played the positive roles by high ecological dam effects with stable supply of water and purification of air, etc.