• Proceedings of the KSR Conference
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• 2009.05a
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• pp.1365-1375
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• 2009

The types and quantities of Hazmat and Hazmat transport are gradually increasing, keeping pace with industrialization and urbanization. There are currently more than 1,000 types of Hazmat,, and new types are added every year. At present the safety management for Hazmat transport only considers reducing accident probability, but even when an accident involving Hazmat-carrying vehicles occurs, that is not regarded as a Hazmat-related accident if the Hazmats do not leak out from the containers carrying them. Based on this principle, in turn., the methods to reduce risk (Risk=Probability$\times$Consequence) have to be developed by incorporating accident probability and consequence. By using Geographic Information System (GIS), a technical method was invented and is automatically able to evaluate the consequence by different types of Hazmat. Thus this study analyzed the degree of risk on the links classified by the Hazmat transport pathways. In order to mitigate the degree of risk, a method of 7-step risk management in transporting Hazmat on railway industries was suggested. The 7-step risk management is definded as the following: 1st step: buliding up GIS DB, 2nd step: calculating accident probability on each link, 3rd step: calculating consequence by Hazmat types, 4th step: determination of risk, 5th step: analysis of alternative plans for mitigating the risk, 6th: measure of effectiveness against each alternative, and 7th step: action plans to be weak probability and consequence by the range recommended from ALARP. In conclusion., those 7 steps are recommended as a standardization method in this study.

• Journal of the Korean Association of Geographic Information Studies
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• v.14 no.2
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• pp.128-137
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• 2011

The purpose of the FAPIS(Forest Aerial Photograph Interpretation System) development is to increase accuracy and efficiency of the digital forest cover type mapping for improving conventional analog-based mapping procedures by optimizing work-flow and mapping technology. The database models including digital forest cover type map, aerial photograph, and topographic map were designed for use in this system construction. The interface configured concisely to connect with functions such as search engine, display control, conversion to stereo interpretation mode, modification tools, automation of print layout and database models. It is expected that the standardization methodology based on this system can be applied and extended in making all kinds of digital thematic maps, providing decision-making and information of forest resources.

• Journal of Intelligence and Information Systems
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• v.11 no.2
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• pp.105-121
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• 2005

To realize a ubiquitous logistics management system using the smart object of Electronic Product Code(EPC) enabled RFID tag, the design and management of RFID Information Service is very important. RFID Information Service searches, transfers and responds to the other's PML request, but Physical Markup Language (PML) data management between trading system elements has issues of standardization of PML data description and processing, and problems of data traffic and communication time overload because of the innate distributed characteristics. As a complementary study, this research analyzes the usage patterns and data types of PML. On that analysis we provide a design of the distributed RFID Information Service architecture of PML data management that is using DB middleware. Standalone and Integrated type of RFID IS were proposed.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.735-735
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• 2012

국내 및 세계적으로 중앙정부 관점에서 수자원관련 현황을 평가하거나 취약성을 파악하는 등 관련 적응 정책 수립, 부문별 정책 수립의 우선순위 결정과 평가를 위하여 지수(Index)와 지표(Indicator)를 개발하고 사용하고 있다. 수자원관련 지수의 개발은 이수, 치수 및 하천환경 분야의 지수가 개발되어 사용되고 있으며 그 중 치수관련 지수는 국내 외에서 많은 연구 결과가 보고되고 있다. 이러한 지표 및 지수의 구성체계는 크게 두 가지로 분류가 되며 하나는 인과관계 접근방식으로 측정하고자 하는 현상, 결과를 나타나게 하는 요인, 이러한 현상을 완화 또는 강화하기 위한 노력 간의 상관성을 파악하여 지표를 도출하고, 다른 하나는 주제 접근방식으로 파악하고자 하는 현상을 크게 분야별로 구분한 후 분야별 정책목표에 따라 하위 분야로 세분화하고 이에 따른 관련지표를 선정한다. 최근에는 주제 접근방식의 지표가 많이 사용되고 있다. 본 연구에서는 수자원통합관리를 위하여 행정구역 및 유역의 다양한 대리변수를 조사, 분석하여 1990년부터 2007년까지의 시군구 및 국가표준지도인 수자원단위지도의 812개의 표준유역별 DB를 구축하였고, 물이용취약성지수 홍수취약성지수 하천환경취약성지수 및 유역종합관리지수를 개발하여 평가하는 유역종합관리지표를 개발하였다. 각 분야별 취약성 지수는 다양한 대리변수들을 통계분석을 통하여 잠재지표를 선정하였으며, 잠재지표들 간의 상관관계를 이용하여 서로 유사한 변수들끼리 묶어주는 요인분석을 실시하여 주제별 세부지표를 선정하였다. 지표 산정에 있어 표준화방법은 가장 많이 사용되고 있는 Z-score 방법을 사용하였고 가중치부여 방법은 동일가중치를 이용하였으며 최종적인 집계과정은 누적합산방법으로 지수를 산정하였다. 본 연구에서 개발된 유역종합관리지표의 타당성조사를 위하여 2008년 강원도 지역의 이수 및 치수관련 자료를 구축하여 피해이력을 제외한 유역종합관리지수를 산정하여 제한급수 및 홍수 피해이력이 발생한 유역과 비교 분석하여 검증을 실시하였다. 본 연구에서 개발된 지표는 유역관련 현황 파악 및 취약성 분석을 통하여 향후 분야별 관련 정책 및 대책 수립에서 보다 효과적인 의사결정을 지원할 수 있을 것으로 사료된다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.3
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• pp.500-508
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• 2008

For efficient compatible system between medical clinics, the medical information has to be built on a standardized protocol such as a HL7 for text data and a DICOM for image data. But it is difficult to exchange information between medical clinics because the systems and softwares are different and also a structure of data and a type of code. Therefore we analyze a structure of DICOM file and design an integrated database for effective information sharing and exchange. The WISD system suggested in this paper separate the DICOM file transmitted by medical clinics to text data and image data and store it in the integrated DB(database) by standardized protocol respectively. It is very efficient that each medical clinic can search and exchange information by web browser using the suggested system. The WISD system can not only search and control of image data and patient information through integrated database and internet, but share medical information without extra charge like construction of new system.

• Proceedings of the Korea Water Resources Association Conference
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• 2016.05a
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• pp.555-555
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• 2016

본 연구는 낙동강 유역의 대표지점별 과거 수문자료의 타당성을 검토하고, 발생된 오류에 대해서는 표준화된 방법으로 수정 보완하여 하천유량 적정관리를 위한 기초 통계자료를 구축하는데 그 목적이 있다. 따라서 수문자료의 정확성 확보와 향후 자료의 활용성을 증대하기 위하여 낙동강홍수통제소의 수문관측소를 중심으로 수위, 수위-유량관계곡선식, 유량자료를 다양한 근거자료 및 수문자료의 특성 등을 고려하여 기초적인 통계자료 구축을 위해 노력하였다. 과거자료를 검토한 결과 2000년대를 기점으로 수위자료의 정확도가 향상되는 것으로 판단하였으며, 사용자에게 신뢰성 있는 자료를 제공하기 위하여 2000년도 이후의 수위자료와 수위-유량관계곡선식을 수집하여 검토?분석하였고, 자료 보완을 통하여 신뢰성 있는 유량자료를 구축할 수 있도록 하였다. 대상지점 12개소에 대하여 취득기간별에 따른 각종 기초통계 특성에 대하여 요약 정리하였다. 자료의 취득률은 대부분 90% 이상의 양호한 결과를 나타내었지만, 몇몇 지점에서는 수위자료의 불안정으로 인하여 60% 이하를 나타내는 지점 또한 존재하였다. 연평균 손실고는 평균강수량에서 유출고를 뺀 값을 나타내고, 이에 대한 유출률을 산정하였다. 또한 취득기간 동안의 평균 풍 평 저 갈수량을 분석하였다. 치수 및 이수 측면을 고려하여 최고유량과 이에 대한 발생일을 조사하였으며, 최저유량의 경우는 7일 평균 최저유량과 이에 대한 발생일을 조사하였다. 최저유량 발생일은 7일 중 중간일을 기준으로 표시하였고 조석이나, 지속적인 배수의 영향을 받는 지점은 홍수위 및 홍수량에 대해서만 산출하였다. 비록 2000년 이전 자료에 대해서는 현실적인 한계로 인하여 검토를 실시하지 못하였으나, 최소 10년간의 자료에 대해서는 신뢰성을 확보하기 위한 노력을 기울였으며, 이러한 경험으로 다시는 재현되는 않는 자연현상에 대한 현장단위에서의 관측 및 측정뿐만 아니라 이를 바탕으로 축적된 자료의 구축, 검증을 통한 DB 구축 등에 더욱 각고의 노력이 필요할 것으로 판단된다.

• Journal of the Korean Society for Precision Engineering
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• v.10 no.2
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• pp.114-125
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• 1993

In the present study the newly developed CAD/CAM system is applied to the process of the molding design, machining for mini-sized and precise processive die, and the production of press-stamped parts. When the design of a die was completed by means of CAD, wire cut NC data were generated with the aid of a design drawing in the CAD system and then inputed into the wire cut machine, and with the aid of a hole chart which had been made for this purpose, all the data were classified into the categories of CNC milling, jig boring, jig grinding, and machine center, and then developing a program of generating NC data, errors in process were reduced and programming time was shortened. The program was developed by using Autolisp language which was built-in the CAD, and realizing the intergation of designing a die, generating and processing NC data directly by a designer, designing time and machinery processing time were shorted. And the traditionally required working time for design. NC program required 6 days of work becomes 4 days of work by using the developed CAD/CAM system so that the efficiency shows 150% of the reduction working time. The prpgram of the design of the automation a progressive die mold was developed in the PC-Class Autocad system, therefore development expense could be reduced, and the integration of the CAD/CAM of the progressive die mold with the standard DB being built could be realized.

• Korean Journal of Construction Engineering and Management
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• v.15 no.1
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• pp.28-38
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• 2014

Construction value engineering(VE) is often performed in the form of a short term review of designs, rather than during a regular workshop with a standardized work plan, and its application method is limited. Thus, tasks are performed by applying the method in reverse depending on the VE results, and function analysis, a key VE method, is omitted or only applied for the sake of formality. In addition, it is hard to expect great results from VE because of insufficient time and budget allowed to perform VE and a lack of understanding of VE procedures and methods. In particular, the methods used to store and reuse the tremendous amount of ideas and information created during the process of VE implementation is not systematic. Even the Korea Expressway Corporation, which has produced relatively systematic VE performance compared to other institutions, has had the above-mentioned problems. Therefore, this study aims to improve existing VE processes and suggest a method to efficiently store and retrieve VE information by analyzing the limitations of construction VE practice and the characteristics of VE for highway facilities as part of improving design VE performance.

• Spatial Information Research
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• v.11 no.1
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• pp.41-60
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• 2003

It is noted that the paper mapping system for University Building Facility has many limitations in terms of data maintenance, real-time GIS data acquisition, and economic efficiency. The aim of this research was to evaluate an operational potential of an on site real-time mobile GIS technique to resolve the problem faced in the university. The idea is based upon the recent trends in the field of 'Telecommunication and Information Technology' that uses a PDA (personal Digital Assistants), wireless network computing, mobile computing, etc. A real time mobile GIS approach has been adopted, in which a PDA is linked to a wireless internet and field workers record data on the computer at the site and analyse data on site. While there should be a considerable number and variety of factors associated with real-time mobile GIS quality, this research focuses on three criteria that are identified as fundamental to customer requirements; (1) data quarry (2) spatial analysis (3) real-time GIS database building. 'Art--empirical study for a case study facility has been conducted to confirm the validity for the system. The system has been checked experimentally, enabled the field users to quarry the data required simply and execute spatial analysis (buffer, overlay etc.,) accommodating versatile alternatives on the site. Detailed visual maps can be generated over large areas quickly and easily. The PDA interface, in particular, were ideally suited for field users to interactively displaying positional information with attribute data. This system has shown to be quite convenient to maintaining a highly reliable database since it could playa crucial role in documenting at real-time basis temporal and spatial changes occurred in the facilities. It is anticipated that this research output will greatly serve to introduce the reliable and cost-effective facility mapping system in the university by overcoming serious constraints suffered from the past non-real time mobile GIS approach.

• Journal of the Korean Association of Geographic Information Studies
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• v.9 no.4
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• pp.34-44
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• 2006

Simulation models allow researchers to model large hydrological catchment for comprehensive management of the water resources and explication of the diffuse pollution processes, such as land-use changes by development plan of the region. Recently, there have been reported many researches that examine water body quality using Geographic Information System (GIS) and dynamic watershed models such as AGNPS, HSPF, SWAT that necessitate handling large amounts of data. The aim of this study is to develop a watershed based water quality estimation system for the impact assessment on stream water quality. KBASIN-HSPF, proposed in this study, provides easy data compiling for HSPF by facilitating the setup and simulation process. It also assists the spatial interpretation of point and non-point pollutant information and thiessen rainfall creation and pre and post processing for large environmental data An integration methodology of GIS and water quality model for the preprocessing geo-morphologic data was designed by coupling the data model KBASIN-HSPF interface comprises four modules: registration and modification of basic environmental information, watershed delineation generator, watershed geo-morphologic index calculator and model input file processor. KBASIN-HSPF was applied to simulate the water quality impact by variation of subbasin pollution discharge structure.