• Title/Summary/Keyword: Construction

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Development and Rationalization of Maritime Traffic Facilities Management System (해양교통시설 운영관리 시스템 구축 및 합리화 방안)

  • Jeon, Min-Su;Lee, Joong-Woo
    • Journal of Navigation and Port Research
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    • v.37 no.6
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    • pp.587-595
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    • 2013
  • Establishment and operation of Aids to Navigation in the process of port design, construction and management are crucial factor of maritime safety and collision prevention. According to the IMO SOLAS Chapter 5, regulation 13, the establishment and operation of maritime safety facilities are mandated for the competent authorities. The facilities of Aids to Navigations are moving to a concept of e-Navigation with state-of-the-art technology of radio navigation equipments such as AIS, DGPS and e-Loran from the traditional visual facilities (optics, shape), Although the autonomous maritime traffic system is a new trend, yet the traditional and conventional Aids to Navigation like lighthouses and beacons are still imperative for vessel's safe navigation. In this paper, for decision of service level of maritime traffic facilities to enhance the efficiency of visual navigation system management it was proposed the Aids to Navigation availability as an efficient management system incorporating the whole maritime traffic facilities under one management system. Comparison of foreign level of services and analysis of the theoretical background of them were analyzed and the proposed LOS was applied to Incheon area to evaluate the safety of navigation routes.

Factors Influencing Automobile Black Box Purchase Decision (차량용 블랙박스 구매결정에 영향을 미치는 요인)

  • Nam, Soo-Tai;Jin, Chan-Yong;Kim, Do-Goan
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.12
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    • pp.2859-2864
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    • 2013
  • Recently, a great attention has been paid to a car black box device in the automobile markets besides it provides an accident re-construction based on the data which contains audio, video, and some meaningful driving information. Also, it is expected that the device will get to promote around public transit and the market will greatly grow within a few years. Thus, this research conducted of preference the influencing factors in decisions purchase of auto black box. Factors influencing in decisions purchase of black box were divided safety, functionality, differentiation, economics. A questionnaire survey was conducted to those who worked in a black box company. This study suggests practical and theoretical implications of factors influencing purchase decisions based on the results.

Construction of Object-oriented Prescription Database and Design/Development of Prescription Search Program (객체지향형 처방 데이터베이스의 구축과 처방 검색 프로그램의 설계 및 개발)

  • Kim, Hyun-Ho;Hong, Hyo-Shin;Yoo, Je-Hyuk;Kwon, Oh-Min;Cha, Wung-Seok
    • Korean Journal of Oriental Medicine
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    • v.17 no.2
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    • pp.73-83
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    • 2011
  • The first medical text in which detailed treatments of diseases by combinations of materia medica are mentioned is the "Shanghanzabinglun(傷寒雜病論)". True meaning of the combinations of materia medica used in this text lies in the fact that the efficacy of a prescription transcends that of the linear sum of each materia medica. This kind of concept regarding the composition of a prescription has come to contribute to the formation of theories in prescriptionology; However, it is difficult to analyze and interpret the meaning of each prescription separately because of differences in interpreting methods, points of view, and terminologies used by members of different academical branches. Therefore, it is desirable that one should understand a prescription as having been modified from a basic prescription, and then bring the interactions of ingredients into the picture, finally understanding the efficacy and chief virtues of the targeted prescription. Nevertheless, with the massive information of prescriptions, which exist in the format of texts, it is impossible to efficiently take advantage of prescription analyzing methods, and therefore the range of analysis extremely restricted. In order to overcomes these weaknesses, this paper suggests that object-oriented prescription database be constructed and that a search program for education and research that could facilitate an efficient access to the database be developed as well.

Optimal Selection of Electric Vehicles' Charging Station Location in Seoul (서울시 최적의 전기자동차 충전소 위치 선정)

  • Kim, Jangyoung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.8
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    • pp.1575-1580
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    • 2017
  • The electric vehicle business is important because it can reduce 30% of the fine dust generated in the metropolitan area and it can solve the air pollution problem by replacing automobile exhaust gas from an internal combustion engine with eco-friendly electric cars. For the construction of the electric charging station infrastructure, which is the core part of the electric car business, we focus to select the optimal location of the electric car charging station in Seoul. The goal of this paper is to utilize and analyze the traffic statistics of T-Map navigation users data and Seoul Metropolitan Transportation Policy Department to deploy the electric cars charging station with optimal location to increase the efficiency. In this paper, the proposed algorithm is composed of two parts of electric charging station selection. First, we analyze real traffic statistics and area. Second, we utilize T-Map navigation data distribution. To select optimal electric charging station location, we apply these two algorithms.

Implementation of condition monitoring system in underground utility tunnels using inductive coupler (유도성 커플러를 이용한 지하공동구의 상태감시시스템)

  • Ju, Woo-Jin;Kim, Hyun-Sik
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.8
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    • pp.1597-1603
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    • 2017
  • The incidence of fire in underground utility tunnel is lower than other fires, but the damage caused by fire can cause social loss due to social management paralysis as well as economic loss. Hereupon, this paper presents the results of an empirical test on the construction of the underground utility tunnel condition monitoring system using the leakage coaxial cable installed in the underground utility tunnel. For this reason, a verification test was conducted by connecting a inductive coupler 200 Mbps power line communication modem with insertion loss characteristics of $-6{\pm}2dB$ to the installed the leakage coaxial cable installed in the underground utility tunnel. As a result, We confirmed sending/receiving of IP cameras up to 500 m. Therefore, it is judged that it is possible to construct a condition monitoring system for underground utility tunnel by using the leakage coaxial cables installed in the underground utility tunnels without installing additional communication lines for data transmission.

Development of Test Software Program and Digital Signal Processing Board for Array Module Signal Processing System (Array 검출 모듈 신호처리 시스템의 테스트 소프트웨어 프로그램 개발 및 디지털 신호처리 보드 개발)

  • Park, Geo;Kim, Young-kil;Lee, Jean
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.3
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    • pp.499-505
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    • 2018
  • Shipping and logistics safety, security system is strengthening worldwide, the development of shipping and logistics safety security core technology for national security logistics system construction has been carried out. In addition, it is necessary to localize the Array Detection System, which is a core component of the container search machine, to cope with the 100% pre-inspection of the container scheduled for 2018 in the United States. In this research, we propose a test software program developed by using TI-RTOS (Texas Instruments - Real Time Operating System) with a test digital signal processing board which is developed self development. We have developed a program that can test GPIO, SRAM, TCP/IP, and SDcard using M4 MCU. Also we propose a study on a self-developed Digital Signal Processing Board among the array detection systems that replace foreign products. We have developed a test board that can test M4 MCU and developed an X-Ray Detector Digital Signal Processing Board that combines MCU and FPGA.

Design of Congestion Standardization System Based on IoT (IoT를 접목한 지하철 객차 내 혼잡도 평준화 시스템 설계)

  • Kim, Mi-Rye;Cho, In-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.5
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    • pp.74-79
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    • 2016
  • The Seoul Metropolitan Subway, which started operating in 1974, plays a major role in transporting 7,289 thousands passengers daily. This trend of a steadily increase in passengers from 2012 has increased the congestion rate because of the limited capacity and time. To solve this problem, Seoul city is consistently working on improving the subway facilities, such as the construction of a detour path. This project, however, has only a slight effect on improving the congestion rate and is too expensive to construct the facilities. Hence, this study suggests The Congestion Standardization System based on the IoT for improving the subway congestion rate. Based on the system, the expected effect analysis was performed, which resulted in a decrease in ride passengers from 34 to 20. In addition, this expected effect analysis shows that the number of subway vehicles can increase from 20 to 24. The suggested system will have a significant effect on the efficiency of the management system.

Characterization of Repairing Polyurethane for Trenchless Sewer Pipeline (비굴착 하수관로용 폴리우레탄 보수재 특성 평가)

  • Park, Jun-Ha;Jeon, Sang-Ryeol;Lee, Kwan-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.5
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    • pp.3542-3547
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    • 2015
  • There is commonly used the full depth excavation method of sewer pipeline maintenance in Korea. This induces couple of technical and social problems like increase of construction cost and time for excavation and backfill, increase of public complains and delay of traffic, and so force. In order to overcome these problems, lots of laboratory tests were carried out for sewer pipeline of maintenance materials with trenchless methods. The testing materials are liquid and hardened polyurethane, and polyurethane CIPP. The lab tests were followed by Korean Standard. There are no side effects, like harmless to the human body and air pollution with stink. Judging from the limited test results, all the items tested were satisfied the KS criteria.

A Dynamic Service Architecture for Adaptable Mobile Smartwork System (적응형 모바일 스마트워크 시스템을 위한 동적 서비스 아키텍쳐)

  • Kim, Chul-Jin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.5
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    • pp.3447-3454
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    • 2015
  • There is increasing demand for enterprise smartwork system by a mobile device increases in these days. Therefore, it has been suggested in the technical platform of smartwork system. But,the research of the changeable smartwork system for quick and immediate correspondence of rapidly changing business affairs is insufficient. In this paper, we propose an adaptable mobile service architecture that can be based on the construction of flexible mobile smartwork system. This adaptable mobile service architecture is possible to dynamic service connecting the adaptable service in an existing smartwork system, and the core elements of the adaptable mobile service architecture propose 'Adaptable Service Manager', 'HotSpot', and 'Configurator'. We propose the dyanmic service processs that based on These core elements. Also, we verify the feasibility through case study that develop the project management mobile service that is usable in business of enterprise. Thus, this research provides the adaptable mobile service architecture that can provide the dynamic mobile service beyond the static mobile service of the existing smartwork system for the various change business of enterprise.

On the CMMI-Based Development of SE & PM Integration Process Architecture (CMMI 기반 시스템공학과 프로젝트관리 통합 프로세스 아키텍처 개발)

  • CHOI, Young-Gil;Jung, Ho-Jeon;Lee, Jae-Chon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.6
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    • pp.4137-4146
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    • 2015
  • The scale and required functionality of modern systems have increased and become more complicated. To successfully carry out the systems development projects, appropriate systems engineering (SE) and project management (PM) activities are required for the underlying process. In a system development organization, it is an effort to secure the SE & PM capability by adopting the CMMI is an evaluation model of improvement and ability of SE&PM process. To achieve the goal each organization establishes and uses its own organizational standard process, which satisfies the business characteristics. However, in practice, due to the lack of sufficient understanding on the interrelationship among different CMMI process areas, there still exist some difficulties with constructing organization processes. In systems development, the activities of SE are closely related with those of PM. Thus, the processes of SE and PM need to be fully integrated and explicitly linked to each other in order to complete the projects successfully. In this paper, we propose a SE&PM integration process architecture of organization that can be utilized in the system development organization is referenced in the construction of CMMI-based organizational process.