• Title/Summary/Keyword: Inspection Analysis

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The Characteristics of Sasang Constitution from the Result of Regular Medical Inspection (한방건강검진 결과에 따른 체질별 특성연구)

  • Kang, Jun-Ho;Kim, Eu-Gene;Cha, Yun-Yeop
    • Journal of Korean Medicine Rehabilitation
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    • v.19 no.3
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    • pp.91-100
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    • 2009
  • Objectives : The purpose of this study was to find the characteristics of Sasang Constitution, Soeumin, Soyangin and Taeumin, Using Regular Medical Inspection. Methods : Subjects of our study were 325 cases who took regular medical inspection. We collected the data of body composition analysis, 7-zone-diagnostic system, blood analysis, and analyzed by Sasang Constitution, Soeumin, Soyangin and Taeumin. Results and Conclusions : 1. In body composition analysis, Taeumin was significantly higher than Soeumin and Soyangin about soft lean mass, body fat mass, waist-hip ratio, body water index, body mass index and basal metabolic rate. In blood analysis, Taeumin was significantly highest about total protein, albumin, GPT, hemoglobin, WBC, triglyceride. In 7-zone-diagnostic system, Taeumin had the highest level at Zone 1, 2. 2. Taeumin had more significant differences than other Sasang constitutions about the parameters of regular medical inspection. 3. Body composition analysis had the most parameters that showed differences among the constitutions, followed by blood analysis and 7-zone-diagnostic system.

Structural Analysis of RIROB(Reactor Inspection Robot) (원자로용 수중탐상기의 구조해석)

  • 최석호;권영주;김재희
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.10a
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    • pp.613-616
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    • 1997
  • MDO(Multidisciplinary Design Optimization) methodology is an emerging new technology to solve a complicate structural analysis and design problem with a number of design variables and constraints. In this paper MDO methodology is adopted through the use of computer aided engineering(CAE) system. And this paper treats the structural design problem of RIROB(Reactor Inspection Robot) through the application of MDO methodology. In a MDO methodology application to the structural design of RIBOS, kinetodynamic analysis is done using a simple fluiddynamic analysis model for the warter flow over the sensor support surface instead of difficult fluid dynamic analysis. Simultaneously the structural static analysis is done to obtain the optimum structural condition. The minimum thickness (0.8cm) of the RIROB housing is obtained for the safe design of RIROB. The kinetodynamic analysis of RIROB. The kinetodynamic analysis of RIROB is done using ADAMS and the static structural analysis of RIROB is done using NISA.

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A Study on the Trolley Sliding Condition Inspection System

  • Chang, ChinYoung;Kim, ChanSam;Jung, NoGeon;Na, YeonIl;Kim, YangSu
    • International Journal of Internet, Broadcasting and Communication
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    • v.7 no.2
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    • pp.109-112
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    • 2015
  • The Korean electric railway is growing rapidly such as speed of 300km/h in high speed section and 230km/h in the conventional railway section. But, power supply failure occurs because of loss of contact, defective catenary system and high speed vehicle. Therefore preventive maintenance way based reliability has been applied. Typical example is the facility inspection method using trolley inspection system. But it is required differentiated inspection method to prevent problem such as inspection errors. In this paper, a study on the trolley sliding condition inspection system using monitoring techniques is performed for performance enhancement of inspection system. It proposed the efficient maintenance method through monitoring the deviation and height of contact wire after installing inspection system on the top of train which operates in the metropolitan area. Inspection errors were decreased by virtually monitoring the video of faulty facilities. Also those facilities were identified through the impact sound analysis and tests at the main catenary section.

An Effect of Similarity Judgement on Human Performance in Inspection Tasks (유사성(類似性) 판단(判斷)과 검사수행도(檢査遂行度)에 관한 연구)

  • Son, Il-Mun;Lee, Dong-Chun;Lee, Sang-Do
    • Journal of Korean Society for Quality Management
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    • v.20 no.2
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    • pp.109-117
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    • 1992
  • An inspection task largely can be seen as a job divided up into a series of visual search and classification subtasks. In these subtasks, an Inspector must performs to compare the standard references proposed in visual environments and recalled in his memory with the visual stimuli to be inspected. It means that the judgement of similarity should be demanded on inspection tasks. Therefore, the inspector's ability for the judgement of similarity and the difference similarity between inspection materials are important factors to effect on performances in inspection tasks. In this paper, to analysis the effect of these factors on inspection time, an inspection task is designed and suggested by means of computer simulator. Especially, the skin conductance responses(SCR) of subjects are measured to evaluate the complexity of tasks due to the difference of similarity between materials. In the results of experiment, the more similar or different the difference of similarity between materials is, the shorter the inspection time is because of the reduction of task complexity. And, When the inspector's cognition for similarity between materials is consistanct, the inpsection time is improved. Concludingly, the consistency of reponses for similarity judgement becomes a measurement to present the performance levels. And the information of inspection time that due to the difference of similarity between materials must be considered in planning and scheduling inspection tasks.

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Improvement of Defect Checklists for the Quality Inspection of Apartment Houses (공동주택 품질점검 하자 체크리스트 개선방안)

  • Yu, Byong-Jae;Bang, Hong-Soon;Kim, Ok-Kyue
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2022.04a
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    • pp.33-34
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    • 2022
  • The Apartment Defect Dispute Mediation Committee of the Ministry of Land, Infrastructure, and Transport received as many as 7,686 complaints regarding defects in 2021, and the conflict caused by these disputes on the defects is worsening. A quality inspection team system was established in January 2021 to address the deepening conflict, and this system prevented the emergence of defects in apartment houses before the residents moved in. Quality inspections were conducted based on the Housing Act standards, but the reality is that the standards for the ordinances are not systematic. Based on the analysis of the ordinances by the apartment quality inspection team, 23 out of 226 local governments utilized the quality inspection teams, and they had different standards for the quality inspection subjects and inspection periods. In addition, the inspection standards for the defect checklists used by the apartment quality inspection teams operated by local governments varied. A survey was conducted by apartment quality experts to tackle this problem and proposed improvement plans for the defect checklists used for the quality inspection of apartment houses.

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Development of the Hydraulic Inspection Method for Irrigation Pipeline Systems (관수로 시스템 수리진단 기법 개발)

  • Kim, Young-Hwa;Park, Ji-Sung;Cheong, Byong-Ho
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2003.10a
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    • pp.251-254
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    • 2003
  • For improving the flow capacity of pipeline system the hydraulic inspection method was developed conducting on-site with survey of pipeline facility such as diversion work, air vent, etc. and pipe network analysis. The pipe network analysis method determine pipe diameter with trial and error. The validity of the hydraulic inspection method proved adapting on S-district pipeline system.

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Cost of Ownership Model for the Inspection Equipment of Multiple Quality Attributes (다항목 검사장비를 위한 COO 모형 연구)

  • Sohn, So-Young;Moon, Hyoung-Uk;Hong, Cheol-Kee
    • Journal of Korean Institute of Industrial Engineers
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    • v.27 no.3
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    • pp.297-304
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    • 2001
  • Procurement decisions for inspection equipment are often made heavily based on the initial purchase price instead of the effects of inspection cost, equipment calibration and utilization over the lifetime. Cost of ownership(COO) models that take into account all of these cost factors together have been developed focusing on a single quality characteristic. In modern manufacturing environment, inspection equipment often can deal with more than one quality characteristic simultaneously. In this paper, we propose the revised COO model for the economic evaluation of the inspection equipment that can accommodate multiple quality characteristics. We also employ an engineering economy model to compare equipments with different life span. Software is developed for handy comparison of the COO of alternative equipments along with sensitivity analysis far the optimal procurement decision.

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Analysis of Likelihood of Failure for the Stress Corrosion Cracking by Caustic Cracking through the Quantitative Risk Based-Inspection using API-581 BRD (API-581 절차에 의한 정량적 위험기반검사에서 부식성 균열에 의한 응력부식의 사고발생 가능성 해석)

  • Lee, Hern-Chang;Choi, Sung-Kyu;Cho, Ji-Hoon;Ham, Byung-Ho;Kim, Tae-Ok
    • Journal of the Korea Safety Management & Science
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    • v.9 no.1
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    • pp.65-76
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    • 2007
  • The likelihood of failure for the stress corrosion cracking (SCC) of caustic cracking, which affect to a risk of facilities, was analyzed through the risk based-inspection using API-581 BRD. We found that SCC of the caustic cracking was occurred above 5 % NaOH concentration, and the technical module subfactor (TMSF) was maximized for above 50 % concentration. The heat traced and monitoring were not sensitive to the TMSF with NaOH concentration and temperature. But the steam out was more of less affect minimum value of the TMSF. Also, the inspection number, the inspection effectiveness, and the year since inspection were very sensitive to the TMSF with NaOH concentration and temperature. Therefore, the plan of next inspection will be established with compositively considering those at once.

Text Network Analysis of Korean Trade Stakeholder's Interactions - A Focus on the Trade Ministry and the Legislature (통상 이해관계자 간 상호작용 관련 텍스트 네트워크 분석(TNA) - 한국 통상부처와 입법부 관계를 중심으로)

  • Bomin Ko
    • Korea Trade Review
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    • v.45 no.6
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    • pp.23-43
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    • 2020
  • This study aims at analyzing the interactions between two of the most significant trade stakeholders in Korea, the Trade Ministry and the Legislature, using text network analysis. Tackling seven Action and Plan Reports for Requests from Parliamentary Inspection released by the National Assembly, this paper conducts a topic modelling analysis, particularly focusing on the reports for the three trade-related institutes: the MOTIE headquarter, Korea Trade Insurance Corporation, Korea Trade and Investment Promotion Agency. According to the analysis, such traditional topics of the MOTIE as enterprise, industry, business, management, development were frequently appeared in the reports. Trade-related topics including export, trade, commerce, investment, overseas, domestic, dispute, cooperation, efficiency, negotiation, service, promotion were repeatedly shown. Lastly, a case study on 2019 Parliamentary Inspection Report showed specific trade-related topics and relevant contents that raised issues in that year. This analysis implies that the text data driven from the Parliamentary Inspection Reports between the MOTIE and the National Assembly, can be established as so called 'trade policy information system' which are valuable not only for the two but also the rest of the trade stakeholders in Korea.

EWIS Reliability Analysis of Aging Fighter Aircraft through Teardown Inspection (완전분해 점검을 통한 장기운영 전투기 전기배선시스템의 신뢰성분석)

  • Lee, Hoyong
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.26 no.4
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    • pp.116-121
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    • 2018
  • According to the incresement of aging aircraft, Republic of Korea Air Force (RoKAF) conducted a teardown inspection of aircraft's EWIS (electrical wiring interconnection system) to determine the status of deterioration and the influence of failure occurrences due to it. The inspected aircraft were the retired fighter jets that had been used for more than 40 years. By analyzing defect type and the defect tendency, RoKAF can establish the necessary measures for the usage extension of their fleet and furthermore, the analysis results can be used as a basic data for the preparation of it's aircraft aging. EWIS inspection was done throughout careful visual inspection technique by removing all the ducts and pipes located in the fuselage and wings. For the aircraft wiring where no damage was found, the elongation tests were performed to determine the deterioration of wiring according to the location of the aircraft. The connectors, which is the main cause of intermittent failure, were completely disassembled and inspected for internal damage such as corrosion, abrasion, and traces of foreign objects. The detected defects were classified into 4 severity levels based on the type of damage, and the classified defects were weighted according to the criticality which may affects to it's system to establish the action plan.