• Title/Summary/Keyword: engineering tools

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Continuous Improvement Through Integration of Quality Tools

  • He, Zhen;Qi, Ershi;Liu, Zixian
    • International Journal of Quality Innovation
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    • v.3 no.2
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    • pp.38-45
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    • 2002
  • Continuous quality improvement is now the focus of research and application in quality engineering. To achieve continuous improvement, it's necessary to integrate quality tools and to plan, design and control the whole process of creating quality. Based on the extensive literature review and the philosophy of concurrent quality engineering, the paper analyzes the relationships among major quality tools such as QFD, FMEA, DOE and SPC and presents a basic model and structure for the integration of quality tools.

An Empirical Study on the Use of CASE Tools for Efficient Software Development (효율적 S/W 개발을 위한 CASE 도구 활용의 실증적 연구)

  • Jeon, Eung-Seop;Nam, Sang-Jo
    • Asia pacific journal of information systems
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    • v.3 no.1
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    • pp.31-53
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    • 1993
  • Computer Aided Software Engineering(CASE) tools are suggested as an automated method for the efficient development of softwares. This study are intended to measure the use level of CASE tools and to provide the meaningful information on the whole software development environment supported by CASE tools. Therefore, the results of a survey on CASE environment in Korea are empirically reported and analyzed. The use of CASE tools is measured; purposes purchasing CASE tools and achievement levels are investigated. Implications from the comparative analysis of the utilization of software engineering methodologies between the CASE user group and the non-user group are described. A proposition is suggested to check the request frequency for program change. Further studies on the reverse engineering, program reuse and the use of CASE tools under distributed processing systems such as client-server environments are suggested.

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A Study on the 6sigma tools application of the manufacturing (제조부문의 6시그마 개선도구 사용실태에 관한 연구)

  • 양정회;임성욱
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.27 no.1
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    • pp.9-14
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    • 2004
  • More than three years have passed since Korean companies introduced Six-Sigma. Each company used a lot of quality improvement tools for years. However, the tools have been taught to the companies with a little understanding of Six sigma tools. Therefore, it is difficult to use the tools correctly at appropriate time. This survey paper was conducted on MBBs and BBs of the manufacturing companies that introduced Six-Sigma. It is intended, in this paper, to provide the companies that will be introduce Six-Sigma a guideline of training course and tools by understanding the importance of each DMAIC stage of Six-Sigma, examining the frequently used tools in each process and their performances, and selecting the key tools for each stage based on the result of this survey.

Predictive Research into Desirable Features of Machine Tools in the Year 2015 and Beyond - Private Viewpoints and Assertion -

  • Yos
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2000.06a
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    • pp.1-18
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    • 2000
  • This paper describes firstly a prediction for desirable features of the machine tool in the year 2015 and beyond, and then delineates something definite in relation to some representative machine tools, which could be realised in very near future. The paper depicts furthermore another aspect of future machine tools, I. e., innovative structural designs. In addition, author asserts the importance of grass root-like knowledge, when predicting the desirable feature of machine tools future together with showing some evidences.

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A Study on Measurement of Dynamic Accuracy Using Grid Encoder in NC Machine Tools (Grid Encoder를 이용한 NC공작기계 동적정밀도 측정에 관한 연구)

  • 이찬호;이방희;김성청
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.378-381
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    • 2003
  • Efficient development of method on a performance evaluation for machine tools has been regarded as the most important work for accuracy and quality enhancement to every user and manufacturer. A evaluation method of accuracy for machine tools has been studied recently according to the rapid increase of interest in precision machine tools. To this point of view, the circular interpolation test of machine tools is recognized as the most useful method to distinguish a dynamic accuracy of NC machine tools by ISO and ANSI/ASME, etc. In this paper, we have studied and developed the form measurement system with grid encoder to analyse the final accuracy of NC machine tools. we have analyzed the servo system error and geometric error of NC machine tools through measuring a dynamic error signal by this system. and then we verified the experimental result and enhanced the reliability by means of comparing the characteristics of the developed system with the kinematic ball-bar system.

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Comparison of Cutting Characteristics between Cermet, Carbide and Coated Carbide Tools in Turning (선삭가공에서 서멧과 초경 및 코팅 초경공구의 절삭특성 비교)

  • 안동길
    • Journal of the Korean Society for Precision Engineering
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    • v.17 no.5
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    • pp.186-194
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    • 2000
  • The purpose of this study is to investigate the difference in cutting characteristics of cermet, carbide and coated carbide tools in the similar application range via turning test of various conditions. The cermet and carbide tools in the range of ISO P10 grade were developed using optimum compositions with a view to obtaining a high toughness and hardness by PM process. First mechanical properties were characterized on these tools. Experimental results of wear behaviour and resistance to fracturing were presented and discussed in the turning of gray cast iron and alloy steels by cermet, carbide and coated carbide tools. The coated carbide tool shows similar cutting performance compared to the cermet, while the cermet has better combination of wear resistance and toughness of high speed (V=500m/min) cutting in comparison with carbide and coated carbide tools, and also shows a potentiality for cast iron cutting. Fe adhesive behaviour on the tools and surface roughness of workpieces were explained by chemical affinity between tools and workpieces.

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Static Analysis Tools Against Cross-site Scripting Vulnerabilities in Web Applications : An Analysis

  • Talib, Nurul Atiqah Abu;Doh, Kyung-Goo
    • Journal of Software Assessment and Valuation
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    • v.17 no.2
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    • pp.125-142
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    • 2021
  • Reports of rampant cross-site scripting (XSS) vulnerabilities raise growing concerns on the effectiveness of current Static Analysis Security Testing (SAST) tools as an internet security device. Attentive to these concerns, this study aims to examine seven open-source SAST tools in order to account for their capabilities in detecting XSS vulnerabilities in PHP applications and to determine their performance in terms of effectiveness and analysis runtime. The representative tools - categorized as either text-based or graph-based analysis tools - were all test-run using real-world PHP applications with known XSS vulnerabilities. The collected vulnerability detection reports of each tool were analyzed with the aid of PhpStorm's data flow analyzer. It is observed that the detection rates of the tools calculated from the total vulnerabilities in the applications can be as high as 0.968 and as low as 0.006. Furthermore, the tools took an average of less than a minute to complete an analysis. Notably, their runtime is independent of their analysis type.

Standby Strategies for Energy Saving in Peripheral Equipment of Machine Tools (공작기계 주변장치의 에너지 절감 대기전략)

  • Kim, Taejung;Kim, Taeho;Jee, Sungchul
    • Journal of the Korean Society for Precision Engineering
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    • v.30 no.5
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    • pp.486-492
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    • 2013
  • Energy cost has been increasing rapidly to comply with environmental regulations worldwide and the manufacturing industry who consumes more than half of the total energy needs to improve their cost competitiveness considering environmental costs. Machine tools are essential elements in manufacturing industry and efforts have been made recently to increase their energy efficiency mainly by German and Japanese machine tool builders. In this paper, trends in energy saving technology are described on the hardware and software sides of peripheral equipment of machine tools. In addition, the power consumption of a machining center is measured and analyzed to develop a software-based standby strategy for energy saving with peripheral equipment of machine tools.

Characterization of Eco-Design Checklists (에코디자인 체크리스트 특성 분석)

  • Masoudi, Ali;You, Hee-Cheon;Suh, Suk-Hwan
    • Journal of the Korean Society for Precision Engineering
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    • v.29 no.9
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    • pp.964-970
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    • 2012
  • Various eco-design tools have been developed which can be classified into quantitative, semi-quantitative, and qualitative tools. Practitioners are reluctant to utilize quantitative tools in light of their time-demanding nature. Among the qualitative tools, checklists are simple tools that allow a quick and effective evaluation and consideration of environmental impacts over the entire life cycle of a product. A profound and better understanding of eco-design checklists is needed so that practitioners can apply them appropriately to their product development context. Various types of eco-design checklists are analyzed in the present study based on their attributes and classified in a structured way for their efficient utilization in product development contexts.