• 한국방재학회:학술대회논문집
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• 한국방재학회 2007년도 정기총회 및 학술발표대회
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• pp.49-52
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• 2007

Terrestrial Laser Scanning(TLS) was developed at the mid-to-late 1990s. This technique enables to perform reconnaissance surveying of regions or structures hard to access. Besides, TLS has been extended its application gradually such as preservation of historical remains, underground surveys, slopes, glaciers monitoring and so on. However, though the technique has a lot of advantages, an application for structural health and safety monitoring is a beginning stage and it need much research. Therefore in this study, as a groundwork, the estimation model on stress of structures using TLS and Finite Element Method(FEM) applied by the Digital Elevation Model(DEM) technique of geoinformatics is proposed. For the verification of this model, experiments were performed with a continuous steel beam subjected to point loads and outputs were compared with those of electrical strain sensors.

• 한국방재학회:학술대회논문집
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• 한국방재학회 2007년도 정기총회 및 학술발표대회
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• pp.616-619
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• 2007

Recently, flood damage has been increased annually by severe rain storm and Typhoon. In this case, it needs to the effective flood management using not only hydrologic data but also numerical map, DEM(Digital Elevation Model), satellite image and so on. At this point in time, therefore, applying mobile GIS technology is expected to increase efficiency about the management of hydraulic structures and can promote LBS(Location Based Service) service for residents. In this study, the flood management technology using mobile GIS is suggested by standing on the basis of a super-highway information network.

• Toxicological Research
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• 제3권1호
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• pp.27-32
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• 1987

Ethyl acetate extracts of 6 commercial amaranths produced in 1985 and 1986 were analyzed with a gas chromatograph. The ${\alpha}$-naphthylamine ranging from 142 ppb to 4216 ppb was detected, but the ${\beta}$ naphthylamine was not detected. The mutagenicity of the ethyl acetate extract was tested using Salmonella typhimurium TA100 in the presence of the S-9 fraction. Significant mutagenic activity was seen in samples containing high levels of ${\alpha}$-naphthylamine. It is suggested that the potential hazard of amaranth to the general public should be reconsidered from the point that the impurities contained in amaranth preparations are the main sources of mutagenicity or carcinogenicity.

• 대한예방의학회:학술대회논문집
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• 대한예방의학회 2005년도 제57차 추계 학술대회 연제집
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• pp.488-488
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• 2005

• 품질경영학회지
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• 제33권3호
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• pp.41-46
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• 2005

The production, processing, sale and service of food materials are not subject to attainment via a single country. In accordance with internationalization of the world, issues related to food safety have emerged as critical international concerns and they are closely associated with the health and interest of domestic consumers, producers, manufacturers, and distributors. As a third party certification standards, ISO 22000 is in progress International Organization for Standardization(ISO) and the Draft International Standard(DIS) has already been presented on December 2004. The purpose of this study is to analyze the international standards, guidelines and legislation in regard of Food Safety Management System(FSMS) including ISO 9001, Hazard Analysis Critical Control Point(HACCP) and Product Liability(PL) so as to present Korean-model Food Safety Management System requirements and system establishment model.

• Structural Monitoring and Maintenance
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• 제7권1호
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• pp.59-67
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• 2020

This study aims to develop the fuzzy risk assessment model of the debris flow to verify the accuracy of risk assessment in order to help related organizations reduce losses caused by landslides. In this study, actual cases of landslides that occurred are utilized as the database. The established models help us assess the occurrence of debris flows using computed indicators, and to verify the model errors. In addition, comparisons are made between the models to determine the best one to use in practical applications. The results prove that the risk assessment model systems are quite suitable for debris flow risk assessment. The reproduction consequences of highlight point discovery are shown in highlight guide coordinating toward discover steady and coordinating component focuses and effectively identified utilizing these two systems, by examining the variety in the distinguished highlights and the element coordinating.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(II)
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• pp.1476-1480
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• 1987

This paper proposes a design method for SCLA(sequential CMOS Domino Logic Array) using 1-level CMOS Domino Logic and Stable Shift Register Latch. Also an algorithm to generate a test sequence and a test procedure for the SCLA are presented. The SCLA has advantages of low power consumption, high density and high speed, and performs hazard-and race-free logic operation, because of using SSRL(Stable Shift Register Latch). By using the proposed test method, all of stuck-at, cross-point, stuck-on and stuck-open faults in SCLA are detected by short test sequence.

• 식품기술
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• 제13권3호
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• pp.3-16
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• 2000

신선 채소류 편의식품에 관련된 병원성 세균으로는 Listeria monocy togenes, Yersinia enterocolytica,A eromonas hydrophila 등이 포함된다. 이들 제품은 미생물(병원성 및 비병원성)을 감소시키거나 사멸시키기 위해 별도의 살균 또는 항균제재를 사용하지 않기 때문에 초기 원료에 존재하거나 혹은 가공 및 유통 과정에서 오염된 미생물이 제품에 그대로 존재할 수 있다. 따라서 이들 제품에서는 병원성 세균이 발견될 수도 있으며, 특히 냉장유통 중 온도조절이 불완전할 경우 그 가능성이 더욱 높아지므로 신선 편의식 채소류 제품에 대해서는 보다 철저한 위생관리가 필요하다. 이러한 측면에서 위해 요소 중점관리기법(Hazard Analysis Critical Control Point, HACCP)을 적용하면 미생물학적 안전성을 확보할수 있다. HACCP이란 특정 제품의 수확에서 소비까지 전 공정에 대해 위해 요소를 검토하고, 이를 조절하기 위한 특별한 수단을 규정하는 관리기법이다. 본 연구에서는 HACCP의 7가지 기본 원칙을 정리하여 실제 대파(green onion)의 최소가공 과정에 적용함으로서 미생물학적 안전성을 확보하고자 시도한 사례를 중심으로 검토하였다.

• 대한전기학회논문지:전력기술부문A
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• 제49권8호
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• pp.369-373
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• 2000

High impedance fault(HIF) is defined as a fault that the general overcurrent relay can not detect or interrupt. Especially when HIF occurs in residential areas, energized high voltage conductor results in fire hazard, equipment damage or personal threat. This paper proposes a fault location estimation algorithm for high impedance fault using wavelet transform. The algorithm is based on the wavelet analysis of the fault voltage and current signals. The performance of the proposed algorithm is tested on a typical 154kV korean transmission line system under various fault conditions. From the tests presented in this paper it can be concluded that a fault location estimation algorithm using wavelet transform can precisely calculate the fault point for HIF.

• 한국조리학회지
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• 제7권1호
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• pp.57-90
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• 2001

We investigated the unequivalence of Food Sanitation law, School Foodservice law and recent reports studied about hazard analysis critical control point(HACCP) system. We also found out that cook's duties were expressed several times in the standard job classification in Korea national statistical office based by the international labor organization(ILO) since 1963, but not ever in the Food Sanitation law and School Foodservice law. Based on these investigations We propose clear expression of cook's duties in the Food Sanitation law and School Foodservice law, and enactment of regulation or law of Cook to reduce any possible food poisonings. However these proposals need to be studied and improved in many different ways for the revision and enactment of the law of cook.