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TDABC에 의한 부산항 컨테이너터미널 원가분석과 유용성에 관한 연구
류동하(Dong Ha Ryu),안기명(Ki-Myung Ahn),황성구(Sung-Gu Hwang) 한국항만경제학회 2014 韓國港灣經濟學會誌 Vol.30 No.3
본 연구는 TDABC라는 새로운 접근 방법에 의해 컨테이너터미널에서 제공하는 항만하역 서비스에 대한 원가를 분석하여 터미널의 전략적 경영의사결정과 운영을 지원할 수 있는 방안을 제시하고자 하였다. 부산항의 H터미널 사례자료를 활용하여 기존의 개별원가계산방식과 ABC 및 TDABC 방식을 적용하였을 경우에 하역서비스별로 원가를 계산하여 TDABC에 의한 전략적 원가관리의 유용성을 살펴보았으며 개별원가계산방식과 전통적인 ABC에 의한 접근법의 한계를 극복하고 실무에서 검토할 수 있는 경영개선 방안을 제시하였다. 전통적 방법에 의한 개별원가분석은 한 컨테이너 터미널을 이용하는 다수의 고객 선사들의 작업조건과 물동량구성이 모두 상이함에도 불구하고 모든 고객선사의 원가가 동일하다고 가정하기 때문에 고객별 수익성 분석에 필요한 자료를 제공할 수 없다. 또한, 개별 고객과 터미널 하역요금 협상 시 원가에 대한 자료를 제공할 수 없으므로 형평성에 맞는 요율이나 또는 합리적 수순의 요율을 설계하는 과정을 지원하지 못하며, 하역요율이 원가 수준에 관계없이 터미널의 협상력과 수요공급 상 우월적 지위에 의하여 전적으로 결정되게 되는 단점이 있다. 그러나, TDABC 방식을 적용하였을 경우에는 미사용 시설원가분석이 가능하고 하역서비스별 및 프로세스별 수익성분석이 가능하여 적정하역요율 및 적정임대료 결정에 유용한 것으로 실증되었다. The purpose of the study is to suggest a new approach to the terminal operators in order for them to efficiently control their operation cost and support the strategic decision making system and build a performance evaluation process through the systematic cost analysis approach. This study implemented terminal cost analysis based on the traditional cost system, ABC and TDABC and compared the results of each approach. Throughout the study, the usefulness of TDABC was proved in finding operational problems and suggesting countermeasures for improving cost effectiveness and minimizing unused cost.
효과적인 재난관리를 위한 Unity3D 기반 홍수 시뮬레이션 가시화 웹시스템
강수명 ( Su-myung Gang ),류동하 ( Dong-ha Ryu ),최영철 ( Yeong-cheol Choi ),정윤재 ( Yun-jae Choung ) 한국지리정보학회 2017 한국지리정보학회지 Vol.20 No.1
Recently, various research has been conducted on the use of a game engine instead of a commercial geographic information system (GIS) engine for the development of 3D GIS. The advantage of the 3D game engine is that it allows developers to develop various modules according to their abilities. In particular, in the area of disasters, a wide range of alternatives for prevention as well as prediction can be presented when new analyses are attempted by combining geographic information and disaster-related information. Furthermore, 3D analysis can be an important factor in analyzing the phenomena occurring in the real 3D world because of the nature of disasters. Therefore, in this study, we tried to develop a visualization module for flood disaster information through a 3D game engine by considering the solutions for cost and manpower problems and the degree of freedom of development. Raw flood data was mapped onto spatial information and interpolation was performed for the natural display of the mapped flood information. Furthermore, we developed a module that intuitively shows dangerous areas to users by generating cumulative information in order to display multidimensional information based on this information. The results of this study are expected to enable various flood information analyses as well as quick response and countermeasures to floods.
3D 재해 정보 표출시스템과 현장 지원 APP간의 연계를 통한 효과적인 Risk Map 정보제공 방안
김도령 ( Do Ryeong Kim ),강수명 ( Su Myung Gang ),류동하 ( Dong Ha Ryu ),박주성 ( Ju Sung Park ),조명희 ( Myung Hee Jo ) 한국지리정보학회 2016 한국지리정보학회지 Vol.19 No.1
The increase in frequency and scale of natural disasters is the typical negative examples of the global climate change and the change of the human living environment in cities. The damage caused by natural disasters in particular including human and physical damage is directly linked to the safety and properties of citizens. Besides, the damage may occur to SOC facilities directly or indirectly. The SOC facilities damaged by disasters cause infringement of citizens safety rights. Therefore, a plan to provide prompt and effective risk map information by linking a 3D disaster information display system, which handles the information of the damage that may occur to SOC facilities such as bridges, beams, and dams at the time of disasters, with an on-site assistance application is suggested in this study. The prompt provision of risk map information is defined as a dynamic expression technology in this study. Also, disaster information is processed and compressed with a module developed to be linked organically to a system that displays disaster information, a proliferation system that can use the information on site, and a DB system that constructs a relationship with the information. Based on the module, the effective disaster information compression plan will be prepared, and the prompt information transmission system will be secured in the future.
KOMPSAT-3 위성영상 기반 양식시설물 자동 검출 프로토타입 시스템 개발
김도령 ( Do-ryeong Kim ),김형훈 ( Hyeong-hun Kim ),김우현 ( Woo-hyeon Kim ),류동하 ( Dong-ha Ryu ),강수명 ( Su-myung Gang ),정윤재 ( Yun-jae Choung ) 한국지리정보학회 2016 한국지리정보학회지 Vol.19 No.4
Aquaculture has historically delivered marine products because the country is surrounded by ocean on three sides. Surveys on production have been conducted recently to systematically manage aquaculture facilities. Based on survey results, pricing controls on marine products has been implemented to stabilize local fishery resources and to ensure minimum income for fishermen. Such surveys on aquaculture facilities depend on manual digitization of aerial photographs each year. These surveys that incorporate manual digitization using high-resolution aerial photographs can accurately evaluate aquaculture with the knowledge of experts, who are aware of each aquaculture facility`s characteristics and deployment of those facilities. However, using aerial photographs has monetary and time limitations for monitoring aquaculture resources with different life cycles, and also requires a number of experts. Therefore, in this study, we investigated an automatic prototype system for detecting boundary information and monitoring aquaculture facilities based on satellite images. KOMPSAT-3 (13 Scene), a local high-resolution satellite provided the satellite imagery collected between October and April, a time period in which many aquaculture facilities were operating. The ANN classification method was used for automatic detecting such as cage, longline and buoy type. Furthermore, shape files were generated using a digitizing image processing method that incorporates polygon generation techniques. In this study, our newly developed prototype method detected aquaculture facilities at a rate of 93%. The suggested method overcomes the limits of existing monitoring method using aerial photographs, but also assists experts in detecting aquaculture facilities. Aquaculture facility detection systems must be developed in the future through application of image processing techniques and classification of aquaculture facilities. Such systems will assist in related decision-making through aquaculture facility monitoring.