• Title/Summary/Keyword: detailed inspection

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E-quality control: A support vector machines approach

  • Tseng, Tzu-Liang (Bill);Aleti, Kalyan Reddy;Hu, Zhonghua;Kwon, Yongjin (James)
    • Journal of Computational Design and Engineering
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    • v.3 no.2
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    • pp.91-101
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    • 2016
  • The automated part quality inspection poses many challenges to the engineers, especially when the part features to be inspected become complicated. A large quantity of part inspection at a faster rate should be relied upon computerized, automated inspection methods, which requires advanced quality control approaches. In this context, this work uses innovative methods in remote part tracking and quality control with the aid of the modern equipment and application of support vector machine (SVM) learning approach to predict the outcome of the quality control process. The classifier equations are built on the data obtained from the experiments and analyzed with different kernel functions. From the analysis, detailed outcome is presented for six different cases. The results indicate the robustness of support vector classification for the experimental data with two output classes.

Comparative proteomic analysis of PK-15 cells infected with wild-type strain and its EP0 gene-deleted mutant strain of pseudorabies virus

  • Di Wang;Dongjie Chen;Shengkui Xu;Fang Wei;Hongyuan Zhao
    • Journal of Veterinary Science
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    • v.25 no.4
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    • pp.54.1-54.16
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    • 2024
  • Importance: As one of the main etiologic agents of infectious diseases in pigs, pseudorabies virus (PRV) infections have caused enormous economic losses worldwide. EP0, one of the PRV early proteins (EP) plays a vital role in PRV infections, but the mechanisms are unclear. Objective: This study examined the function of EP0 to provide a direction for its in-depth analysis. Methods: In this study, the EP0-deleted PRV mutant was obtained, and Tandem Mass Tag-based proteomic analysis was used to screen the differentially expressed proteins (DEPs) quantitatively in EP0-deleted PRV- or wild-type PRV-infected porcine kidney 15 cells. Results: This study identified 7,391 DEPs, including 120 and 21 up-regulated and down-regulated DEPs, respectively. Western blot analysis confirmed the changes in the expression of the selected proteins, such as speckled protein 100. Comprehensive analysis revealed 141 DEPs involved in various biological processes and molecular functions, such as transcription regulator activity, biological regulation, and localization. Conclusions and Relevance: These results holistically outlined the functions of EP0 during a PRV infection and might provide a direction for more detailed function studies of EP0 and the stimulation of lytic PRV infections.

Comparison of Relative Risk before and after SEMI S2-93A Implementation: Using a Semiconductor Plant in a Taiwan's Science Park as an Example

  • Tien, Shiaw-Wen;Chung, Yi-Chan;Tsai, Chihj-Hung;Hwang, Guo-Ji
    • International Journal of Quality Innovation
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    • v.6 no.1
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    • pp.58-73
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    • 2005
  • The objective of this study is to evaluate the equipment risk before and after SEMI S2-93A implementation, thus providing a guideline for safety improvement. Semiconductor Plant A located in Taiwan's Hsinchu Science Based Industrial Park with 147 manufacturing machines was used for risk assessment. This study was carried out in three steps. First, a preliminary hazard analysis was conducted. A detailed process safety evaluation was conducted (Hazard and Operability Study, HAZOP); and finally, the equipment risk comparison before and after Semiconductor Equipment Manufacturing Instruction (SEMI S2-93A) implementation. The preliminary hazard analysis results showed high risk in 21.77% of the manufacturing machines under risk assessment at Plant A. The largest percentage existed in the Diffusion Department. The machine types specified by the hazardous work site review and inspection according to Article 26 of Labor Inspection Regulation (the machines that use such chemicals as, $SiH_4$, HF, HCL, etc. and that are determined to be highly hazardous through preliminary hazard analysis) were added to the detailed process analysis and evaluation. In the third part of this evaluation, the machines at Plant A used for detailed process safety assessment were divided into two groups based on the manufacturing data before and after 1993. The severity, possibility, and actual accident analysis before and after SEMI S2-93A implementation were compared. The Semiconductor Equipment Manufacturing Instruction (SEMI S2-93A) implementation can reduce the severity and possibility of hazard occurrence.

A Study on the Improvement of Evaluation Indicators for Small Library Operations (작은도서관 운영평가 지표 개선에 관한 연구)

  • Kim, Bo-il
    • Journal of the Korean Society for Library and Information Science
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    • v.52 no.1
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    • pp.5-34
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    • 2018
  • The small library evaluation index, which was previously developed and is currently in use, needs to be improved because of two major reasons: inefficient allocation of points along with evaluation items and detailed indicators that are different from the actual environment of small libraries; and the lack of value as basic data for preparing policies relevant to small libraries. Therefore, the present study proposed a small library operation evaluation index (draft) that includes not only a quantitative evaluation but also a qualitative evaluation that allows the evaluation of the basic purpose and value of small libraries by reflecting the demands of the small libraries that are being evaluated. The proposed small library operation evaluation index (draft) was made to be an evaluation for self-inspection that enables small libraries to autonomously conduct operation evaluation and gauge their level by diversifying the evaluation methods and the evaluation scale of detailed indicators.

A Study on Detailed Nondisclosure Criteria for the Administrative Departments (행정각부 비공개 대상정보 세부기준 개선방안 연구)

  • Youseung Kim
    • Journal of Korean Society of Archives and Records Management
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    • v.23 no.3
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    • pp.115-136
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    • 2023
  • The purpose of this study is to discuss problems and seek improvement plans based on a critical analysis of the detailed standards for nondisclosure of 19 administrative departments in accordance with Article 26 of the Government Organization Act. To this end, the status of information disclosure-related regulations in 19 administrative departments was analyzed, and 6,094 cases of nondisclosed information were investigated and analyzed. In addition, through interviews with seven information disclosure experts, the analysis contents of this study were shared and reviewed. Furthermore, opinions on the effectiveness, problems, and system improvement areas of the detailed standards for nondisclosed information were collected. As a conclusion, three improvement measures were proposed: first, the legislation on the establishment of detailed standards for nondisclosure; second, the establishment of a system for regular substantive inspection of detailed standards for nondisclosure; and third, the improvement in the service of detailed standards for nondisclosure.

Inspeciton for Ground Settlement and Its Contermeasurement Under ${\bigcirc}{\bigcirc}$-Station Passenger Way Adjacent to Ground Excavation (${\bigcirc}{\bigcirc}$역사 지하철 환승통로 주변지반 침하 원인 및 대책에 관한 연구)

  • Yoon, Tae-Gook;Choo, Jin-Ho;Kim, Hong-Kyun;Ko, Hee-Kyu;Han, Dong-Eun
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.2879-2884
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    • 2011
  • Ground settlement has been occurred at asphalt pavement above ${\bigcirc}{\bigcirc}$ station passenger way adjacent to ground excavation with SPS method. In this study, emergency inspection has been conducted 4 detailed areas by KISTEC; SPS, sewage box, 50m box in subway, and ${\bigcirc}{\bigcirc}$ station. Field description and previous reports have been analyzed with the elapsed years. Not only precise inspection with several NDTs but also stability analysis by FLAC have been performed to estimated the tendency of settlement at sunk pavement area. Additional monitoring system and water analysis from sewage and SPS have been examined to scrutinize the reason and maintenance for settlement.

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Shape reconstruction of solder joints on PCB using laminography (라미노그라피를 이용한 전자회로기판의 납땜부 형상 복원)

  • 박원식;강성택;김형철;김성권
    • 제어로봇시스템학회:학술대회논문집
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    • 1996.10b
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    • pp.264-267
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    • 1996
  • This paper is aimed to develop a very reliable method for automatic inspection of the solder joints on PCBS. There have been lots of previous works using vision technologies, but they can not be used for inspecting BGA, FCA or other newly used devices. Thus we adopt X-ray technologies for solder joint inspection. We put our attention on reconstructing the 3D shapes of solder joints since it gives us the most detailed information on quality of solder joints. Laminography principle is used to reject the interferences from neighboring parts or leads. To verify the effectiveness of laminography, a simulation study is performed in the case of a solder joints on double sided PCB using.

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Development of a Geometry PIG for the Inspection of Natural Gas Pipeline and It´s application

  • Kim, Dong-Kyu;Cho, Sung-Ho;Park, Seoung-Soo;Park, Dae-Jin;Koo, Sung-Ja;Yoo, Hui-Ryong;Park, Yong-Woo;Kho, Young-Tai
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.150.4-150
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    • 2001
  • The geometry PIG provides pipeline operators with continuous measurement of pipe centerline coordinates, bend radius, displacement, and bending strain in a single pass through the pipeline. This study introduces the developed geometry PIG(Pipeline Inspection Gauge) which is used for geometry surveys. This tool is equipped with the several sensor systems. The Inertial Navigation System (INS) comprises angle rate gyros and linear accelerometers. The system measures the precise path of the PIG during its traverse of the pipeline. This system is also used to produce a detailed map of the lire, measure curvature. Odometers measure the PIG´s distance moved along the line and instantaneous speed during the PIG run. Caliper sensors measure pipeline ...

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Estimation of Internal Prestress Loss by External Prestressing Method on PSC Girder (외부긴장재 도입공법을 적용한 PSC거더의 내부프리스트레스 손실량 추정)

  • Yong, Hwan-Sun;Kim, Seok-Tae;Kim, Yoon-Hwan;Choe, Hyeon-Ho
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.7 no.1
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    • pp.227-238
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    • 2003
  • Due to deterioration of bridge, usually be using the external prestressing method among repair reinforcement method. But, there is much to be desired about a detailed account, almost it has analysed by cambers of girders, deflections of middle span and upper, bottom stresses of girders. Also, it is not examined closely that effect of internal prestress by external prestressing. The purpose of this study is confirmed the effect of internal tendons by external prestressing, estimation of additional external prestressing force and look for exact external prestressing force.

A Study on Joint Tracking for Multipass Arc Welding using Vision Sensor (비전 센서를 이용한 다층 아크 용접에서 용접선 추적에 관한 연구)

  • 이정익;장인선;이세현;엄기원
    • Journal of Welding and Joining
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    • v.16 no.3
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    • pp.85-94
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    • 1998
  • Welding fabrication invariantly involves three district sequential steps: preparation, actual process execution and post-weld inspection. One of the major problems in automating these steps and developing autonomous welding system, is the lack of proper sensing strategies. Conventionally, machine vision is used in robotic arc welding only for the correction of pre-taught welding paths in single pass. In this paper, developed vision processing techniques are detailed, and their application in welding fabrication is covered. The software for joint tracking system is finally proposed.

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