• Title/Summary/Keyword: Inspection standard

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Supplementation of Regulation on the Offshore Oil Pipeline for Maintenance (해저 송유배관 유지관리를 위한 기준 보완 제시)

  • Kang, Chan-Seong;Moon, Seung-Jae
    • Plant Journal
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    • v.8 no.2
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    • pp.70-81
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    • 2012
  • The study aims to supplement facility management plan and safety regulations & standard of oil pipeline by searching and reviewing related regulation & standard inside and outside of the country. Korean regulation & standard is reviewed based on harbor and fishery design standard of the ministry of maritime affairs and fisheries, general technology standard of oil pipeline safety regulation, gas excavation construction and safety maintenance indicator of Korea gas corporation. Global regulation & standard is reviewed based on U.S standard inspection for offshore pipeline and Europe/Mexico standard inspection for offshore pipeline. The contents of offshore pipeline installation is inserted into pipeline sector for objected facilities of safety inspection regulation & standard and, the standard of safety inspection for offshore pipeline is newly presented into pipeline maintenance part of the planning facilities management with its inspection period and method.

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A Study on the Inspection Standards and Methods of Two-Wheeled Motorcycle Headlight (이륜차 전조등 검사기준 및 검사방법에 관한 연구)

  • Ha, Tae-Woong;Hong, Seung-Jun
    • Journal of Auto-vehicle Safety Association
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    • v.12 no.3
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    • pp.7-12
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    • 2020
  • This paper has presented the headlight inspection standards and methods of two-wheeled motorcycles considering Korean Motor Vehicle Safety Standards (KMVSS), Korean Motor Vehicle Inspection Standards (KMVI) and the inspection standards of the International Motor Vehicle Inspection Committee (CITA). As a result of analyzing the headlight luminous intensity test result with fixed inspection equipment, 21% does not meet the inspection standard proposed in this study, and 33.3% in mobile inspection equipment does not meet. The average luminous intensity of motorcycle less than 50 cc is 8,340 cd, so all the lightweight small sized motor cycles do not meet the proposed headlight inspection standard.

A Novel OLED Inspection Process Method with Simultaneous Measurement for Standard and Deposition Pattern (기준패턴과 증착패턴의 동시 측정을 통한 OLED 공정 검사 방법)

  • Kwak, Byeongho;Cheoi, Kyungjoo
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.15 no.4
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    • pp.63-70
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    • 2019
  • The subject of the simultaneous measuring system of base pattern and deposition pattern is a new research topic on a defect inspection of OLED. In this paper, we propose a new OLED inspection method that simultaneously measures standard and deposition pattern images. This method reduces unnecessary processes and tac time during OLED inspection. For an additional reduction of the tac time during pattern measurement, the ROI was configured to measure only in the designated ROI area instead of measuring the entire area of an image. During the ROI set-up, the value of effective deposition pattern area is included so that if the deposition pattern is out of the ROI zone, it would be treated as a defect before measuring the size and center point of the pattern. As a result, the tac time and inspection process could be shortened. The proposed method also could be applied to the OLED manufacturing process. Production of OLED could be increased by reducing tac time and inspection process.

Validation of Korean Meat Products and Processed Cheese for the Detection of GMO using p35S and tNOS Primers

  • Shin, Hyo-Jin;Heo, Eun-Jeong;Moon, Jin-San;Kim, Ji-Ho;Kim, Young-Jo;Park, Hyun-Jung;Yoon, Yo-Han;Kim, Jin-Man;Wee, Sung-Hwan
    • Food Science of Animal Resources
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    • v.31 no.5
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    • pp.658-662
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    • 2011
  • In this study, 543 samples of press hams, sausages, processed ground meat and processed cheese acquired from retail markets in Seoul and Gyeonggi province in Korea from 2005 to 2010 were monitored using a one-step multiplex polymerase chain reaction (PCR) method that involves the amplification of specific soya or maize endogenous genes and the amplification of 35S promoter (p35S) and nopaline synthase terminator (tNOS) for GMO detection. Among the 543 samples, 477 samples were amplified for maize and/or soybean endogenous genes. Although one sausage sample collected in 2008 showed amplification of tNOS, the result was assumed to be false positive based on the results from further tests of other sausage samples of the same brand. Our results demonstrate the absence of GM soya and/or maze of livestock products in the Korean market during 2005-2010. In addition, the one-step multiplex PCR using previously constructed primer sets appears to be useful as a screening method for the detection of GMOs in processed livestock products. However, more specific methods should be established and employed to detect the event-specific GM gene for positive reaction samples by screening tests in processed livestock products.

Standard Manual for the Diagnosis and Repairing Leakage Cracks of Underground Structures in Apartment Housing - Maintenance Inspection - (공동주택 지하구조물의 누수 균열 진단 및 보수방법 표준 매뉴얼 - 유지관리 점검 -)

  • Kim, Soo Yeon;Lee, Jung Hun;Lee, Sung Jin;Jang, Duk Bae;Oh, Sang Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2018.05a
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    • pp.343-344
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    • 2018
  • This study proposes a standard method of diagnosis and repair to prevent and maintain the problem of durability deterioration caused by leakage cracks in apartment basement structures in Korea. Following the announcement of the previous maintenance plan section, this is the second part of the study, focusing on inspection of methods for diagnosing and repairing leakage cracks in apartment basement structures. In this thesis, the matters required for the procedures, types, times and equipment of the inspection plan and the inspection methods, records, and decisions required for the actual inspection are described.

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Characteristics and Development of Database Program for Maintenance and Management of Railway Tunnel (철도터널의 유지관리 DB 프로그램 개발 및 특성)

  • Lee, Song;Koo, Ja-Kap;Shim, Min-Bo
    • Journal of the Korean Society for Railway
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    • v.3 no.3
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    • pp.139-146
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    • 2000
  • Recently, many kinds of research have been actively developing for a standardization and information to the field of design, construction, supervision, maintenance and management on facilities. The establishment of standard classification system on tunnel facilities and inspection data is most important among the things to have a efficiently maintenance and management. This paper suggests standard classification system on tunnel facilities and inspection data, and, on the basis of that, code work with standard classification system and input work was practised. The purpose of this paper is to suggest a kind of statistics data and investigate a characteristics of inspection using statistic data on railway tunnel.

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A Defect Inspection Algorithm Using Multi-Resolution Analysis based on Wavelet Transform (웨이블릿 다해상도 분석에 의한 디지털 이미지 결점 검출 알고리즘)

  • Kim, Kyung-Joon;Lee, Chang-Hwan;Kim, Joo-Yong
    • Textile Coloration and Finishing
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    • v.21 no.1
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    • pp.53-58
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    • 2009
  • A real-time inspection system has been developed by combining CCD based image processing algorithm and a standard lighting equipment. The system was tested for defective fabrics showing nozzle contact scratch marks, which were one of the frequently occurring defects. Multi-resolution analysis(MRA) algorithm were used and evaluated according to both their processing time and detection rate. Standard value for defective inspection was the mean of the non-defect image feature. Similarity was decided via comparing standard value with sample image feature value. Totally, we achieved defective inspection accuracy above 95%.

Amendment of the Inspection Standard for Diagnostic Radiation Equipment Applying IEC 60601-1-3: Medical Electrical Equipment - Part 1-3: General Requirements for Basic Safety and Essential Performance - Collateral Standard: Radiation Protection in Diagnostic X-ray Equipment (KS C IEC60601-1-3: 의료용 전기기기-제1-3부: 기본 안전 및 필수 성능에 관한 일반 요구사항-보조표준: 진단용 X선 장치의 방사선 방어를 적용한 진단용 방사선 발생장치의 검사기준 개선안)

  • Park, Hye-Min;Kim, Jung-Min;Kim, Jung-Su;Kim, Seong-Ok;Choi, Young-Min
    • Journal of radiological science and technology
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    • v.41 no.5
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    • pp.493-504
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    • 2018
  • The diagnostic radiation equipment is managed in accordance with the "Rules for Safety Management of Diagnostic Radiation Equipment" enacted in 1995. The equipments should be inspected before use and every three years after use in accordance with the [Appendix 1] of the same rule. The inspection standard has been maintained without particular revision since enacted. But, over the past two decades new types of equipments have been manufactured and used. So, it is necessary to revise [Appendix 1] by making inspection items and inspection standards. In this study, we revised the classification system of equipments and reviewed international standards of IEC 60601 series, IEC 61223 series and AAPM TG 18 On-line Report No.03. And identified the problem of current inspection standards. Through this, we revised, deleted and added the inspection items and inspection standard of each equipment to meet the domestic circumstances. As a result of the study, we reorganized the classification system of equipment which are current classified as 5 classes into 22 classes as X-ray system etc. (7 classes), CT system etc. (5 classes) and Dental X-ray system etc. (10 classes). And then, we developed 70 inspection items for 6 types of equipments according to the reorganized classification system of equipments. The inspection items and inspection standards derived from this study have been proposed to the KCDC and will be applied to the revision of the Rule's [Appendix 1]. Therefore, we expect to be used as reference materials for domestic medical center, inspection institutions, and equipment manufacturing import companies.

A research for improvement methods in the aspect of safety engineering through risk analysis of facilities for multiple use - Focused on escalator and passenger conveyors - (다중이용시설물 위험분석을 통한 안전공학적 개선 방안에 관한 연구 (에스컬레이터 및 수평보행기를 중심으로))

  • Kwon, Sun-Geol;Kim, Jin-Soo;Kim, Chang-Eun
    • Journal of the Korea Safety Management & Science
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    • v.15 no.1
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    • pp.31-40
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    • 2013
  • For the matter of elevator, one of the multi-use facilities for unspecified public, the JIS has re-established and reformed to apply to the environment in South Korea for the past 20 years. In the aspect of safety assurance, it was inevitable to suggest improved measures. The government, Ministry of Public Administration and Security has secured the safety by enhancing the safety management functions in the elevator inspection standards and expanding its safety device measures. Further, the international inspection standard has been introduced, which is about unifying inspection standard system into the international standard code. In March 14th 2012, the international standard (EN) has been amended and fully announced. Escalator and passenger conveyor among lift devices have several common danger factor that cause safety accident. First, the accident caused by decreased braking power of brake. Second, the accident caused by the rate difference between handrail and tread-board. Third, the accident caused by defects of contraflow preventing device or carelessness inspection. Fourth, the accident caused by wet tread-board or wet floor of platform which makes passenger slip and fall. As the improvements to prevent and reduce these negligent accidents, the inspection list to check and methods should be subdivided and applied for each accident likelihood cause for safety management enhancement and safety assurance of existing escalator and passenger conveyors. The escalators and passenger conveyors without safety devices in existence should be obliged to modify the part of the system or install additional safety device. With making these measures obligations, it requires to improve the system to be suitable for the international inspection standard and to have measures to prevent safety accidents. It also needs to arrange improvements for skid accident of tread-board by the external environment factors such as snow and rain.

Wavelet Transform Based Image Template Matching for Automatic Component Inspection (자동부품검사를 위한 웨이블렛 변환 기반 영상정합)

  • Cho, Han-Jin;Park, Tae-Hyoung
    • Journal of Institute of Control, Robotics and Systems
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    • v.15 no.2
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    • pp.225-230
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    • 2009
  • We propose a template matching method for component inspection of SMD assembly system. To discriminate wrong assembled components, the input image of component is matched with its standard image by template matching algorithm. For a fast inspection system, the calculation time of matching algorithm should be reduced. Since the standard images of all components located in a PCB are stored in computer, it is desirable to reduce the memory size of standard image. We apply the discrete wavelet transformation to reduce the image size as well as the calculation time. Only 7% memory of the BMP image is used to discriminate goodness or badness of components assembly. Comparative results are presented to verify the usefulness of the proposed method.