• Title/Summary/Keyword: quality measurement tool

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A Study on Evaluation of an Automatic Tool Compensation System in CNC Machine Tool (CNC 공작기계에서의 자동공구 보정시스템의 평가에 관한 연구)

  • 정상화;신현성;김현욱
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2001.04a
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    • pp.371-375
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    • 2001
  • The tool wear that is developed by long-term machining in mold manufacturing with machining center makes a severe influence to the accuracy and the surface roughness. In this reason, tool-wear supervising system which has guaranteed high accuracy and high speed is needed to improve the measurement quality. Touching probe and touch sensor are widely used to measure the tool profile at on-machine measurement. In this paper, using the newly developed electric touch point measuring system, the Automatic Tool Compensation System is developed to correct the error of tool diameter resulted from the wear, and the operating method of this system is also provided.

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Development of Performance Measures Based on Nursing Process for Admission and Discharge Care (간호과정 적용 평가도구 개발 -입원 및 퇴원 시 간호를 중심으로-)

  • Kim, Keum Soon;Kim, Jin A;Choi, Yun Kyoung;Kim, Eun Man;Kim, Yu Jeong;Kim, Mi Ae;Kim, Kyoung Ok;Kim, Eul Soon
    • Journal of Korean Clinical Nursing Research
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    • v.17 no.2
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    • pp.123-137
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    • 2011
  • Purpose: This study was conducted to develop standards ensuring nursing process-based care of patient admission and discharge, to develop a performance measurement tool evaluating the care applied according to the standards, and finally to determine validity of the standards and the tool. Methods: The standards and the tool were reviewed by a panel of experts and refined based on the panel's suggestions. Validity of the standards and the tool were examined through surveying a total of 302 hospital nurses. Results: The mean validity scores of the performance measurement standards and the tool were 4.11 and 4.09, respectively, out of 5.00. So the performance measurement standards and the tool in this study were found to be acceptable in evaluating quality of nursing care provided at patient admission and discharge. Conclusion: This result indicates that the performance measurement standards and the tool developed in this study are valid instruments to monitor and improve quality of nursing care for patient admission and discharge.

Development of Software Quality Assessment Tool (소프트웨어 품질평가 도구(ESCORT)의 설계 및 구현)

  • Yang, Hae-Sul;Gwon, Gi-Hyeon;Lee, Ha-Yong;Jo, Yeong-Sik;Lee, Yong-Geun;Park, Jeong-Ho;Heo, Tae-Gyeong
    • The Transactions of the Korea Information Processing Society
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    • v.2 no.2
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    • pp.185-198
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    • 1995
  • The development of automated quality evaluation tool is desperately needed to decrease the cost of maintenance, to measure quality of source program in developing course for the purpose of developing high quality software. Main goal in this paper is to develop the automated tool for software quality evaluation related with high quality and high reliability of software. In this paper, we proposed the four software quality model to evaluate software quality; functional -size model, understandability model, complexity model and object-oriented model. Also, we made a scanner and a parser to analyze the c and C++ source program and to produce the metrics and function value. The measurement value is statistically analyzed for the distribution of the measurement value. we can extracted the characteristics of measurement value and this one is assisted to make scores of software quality evaluation. Finally, we made a software quality evaluation tool to support software evaluation activities.

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Development of an Automatic Tool Compensation System for M/C (머시닝센터용 자동공구보정시스템의 개발)

  • 정상화;신현성;김현욱
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.10 no.4
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    • pp.48-54
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    • 2001
  • The tool wear that is developed by long-term machining in mold manufacturing with machining center makes a severe influence to the accuracy and the surface roughness. in this reason, tool-wear supervising system which has guaranteed high accuracy and high speed is needed to improve the measurement quality. Touching probe and touch sensor are widely used to measure the tool profile at on-machine measurement. In this paper, using the newly developed electric touch point measuring system, the Automatic Tool Compensation System is developed to correct the error of tool diameter resulted from the wear, and the operating method of this system is also provided.

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A Study on Machined Surfaces Characteristics of Aluminum Alloy by AFM Measurement (AFM 측정법에 의한 알루미늄 합금의 초정밀 가공면 평가 연구)

  • Lee Gab-Jo;Kim Jong-Kwan
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.15 no.2
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    • pp.81-86
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    • 2006
  • The machining parts must be produced within the specification of drawing and those will be able to meet function and efficiency. At that time, it is very important not only precision machine and machining technique but also the measurement technique. So, the improvement of measurement technique is to be joined together at once with improvement of machining technique. Finally, the quality and value of the parts are decided by precision measurement. This paper aims to study on the machined surfaces characteristics of aluminum alloy by AFM(Atomic force microscope) measurement. The objective is contribution to ultra-precision machining by exhibit foundation data of surface roughness and tool wear when parts are cutting with diamond tool at the factory.

An Exploratory Study on the Balanced Scorecard Model of Social Enterprise

  • Lee, Yoeng-Taak;Moon, Jae-Young
    • International Journal of Quality Innovation
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    • v.9 no.2
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    • pp.11-30
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    • 2008
  • The purpose of this study is to develop BSC model of social enterprise. Performance analysis tool of BSC have been brought over from the business world, designed and created from the perspectives of profit-based businesses. The BSC is a strategic performance measurement and management tool designed for the private sector acting as a communication/information and learning system, to measure 'where we are now' and 'where to aim for next'. It prescribes a plan for translating 'vision' and 'strategy' into concrete action across four perspectives at different stages, depending on the business. These perspectives are 'financial', 'customer', 'internal processes' and 'learning and growth', each of which is connected by cause-and-effect relationships that reflect the firm's strategy. Social aims of social enterprise are to accomplish desired outcomes which are to employ vulnerable people and to provide social services. The measurement factors of financial perspective are stable funding, efficiency of budgeting, stakeholders' financial supports, and trade profit. The measurement factors of customer perspective are government, social service users, employees, local communities, sup plier, social activity company, and partnership with external organizations. The measurement factors of internal process perspective are organizational culture, organizational structure/management, internal/external communication, quality of products and services, information sharing. The measurement factors of learning and growth perspective are training and development, management participation, knowledge sharing, leadership of CEO and manager, and learning culture.

An empirical study on the effectiveness of BSC to measure quality concerning supply relationship (공급 관계품질 측정을 위한 BSC활용의 효과성에 관한 연구)

  • 서창적;권영훈
    • Journal of Korean Society for Quality Management
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    • v.30 no.3
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    • pp.79-93
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    • 2002
  • Many companies are struggling with the issue of performance measurement because a generally accepted framework does not exist. The Balanced Scorecard is designed to help firms that have historically overemphasized short-term financial performance. In this article, we discuss the interrelation between supply relationship and BSC. The Balanced Scorecard to measure quality performance with respect to supply relationship is suggested. Based on the survey of 84 venture firms, the validity of the measurement tool is tested statistically. Consequently, it was found that the suggested items have validity to measure supply relationship quality performance

Development of Performance Measures Based on Nursing Process for Oxygen Therapy and Airway Suctioning (간호과정 적용 평가도구 개발 -산소요법과 흡인간호를 중심으로-)

  • Kim, Keum Soon;Choi, Yun Kyoung;Lee, Jung Lim;Ahn, Jung Won;Lee, So Lim;Choi, Won Ja;Kim, Eul Soon
    • Journal of Korean Clinical Nursing Research
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    • v.19 no.1
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    • pp.1-19
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    • 2013
  • Purpose: This study was conducted to develop standards to ensure nursing process-based care of oxygen therapy and airway suctioning and to develop a performance measurement tool to evaluate the care applied according to the standards, and finally to determine validity of the standards and the tool. Methods: The standards and the tool were reviewed by a panel of experts and refined based on the panel's suggestions. Validity of the standards and the tool were examined through surveying a total of 366 hospital nurses. Results: The mean validity scores of the performance measurement standards and the tool were 3.58 and 3.55, respectively, out of 4.00. So the performance measurement standards and the tool in this study were found to be acceptable in evaluating quality of nursing care provided at patient admission and discharge. Conclusion: This result indicates that the performance measurement standards and the tool developed in this study are valid instruments to monitor and improve quality of nursing care for oxygen therapy and airway suctioning.

Development of Performance Measures Based on Nursing Process for Fluid Intake/Output and Tube Care (간호과정 적용 평가도구 개발 -수분섭취/배설간호와 튜브간호를 중심으로-)

  • Kim, Keum Soon;Choi, Yun Kyoung;Choi, Wan Hee;Ahn, Jung Won;Kim, Jin A;Park, Seung Mi;Choi, Kyung Ok;Kim, Eul Soon
    • Journal of Korean Clinical Nursing Research
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    • v.18 no.1
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    • pp.13-28
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    • 2012
  • Purpose: This study was conducted to develop standards ensuring nursing process-based fluid intake/output and tube care, and to develop a performance measurement tool evaluating the level of care according to the standards, and finally to determine validity of the standards and the tool. Methods: The standards and the tool were reviewed by a panel of experts and refined based on the panel's suggestions. Validity of the standards and the tool were examined using a survey of 293 hospital nurses. Results: The mean validity scores of the performance measurement standards and the tool were 3.86 and 4.02, respectively, out of 5.00. So the performance measurement standards and the tool in this study were found to be acceptable in evaluating quality of nursing care for fluid intake/output and tubes. Conclusion: This result indicates that the performance measurement standards and the tool developed in this study are valid instruments to monitor and improve quality of nursing care for fluid intake/output and tube interventions, such as intravenous catheters, nasogastric tube and urinary catheters.

Surface Quality of Products according to the Material and Coating Condition of the Forming Tool in Incremental Sheet Forming (점진성형공구 코팅처리 및 소재에 따른 성형품 표면품질 분석)

  • H. W. Youn;N. Park
    • Transactions of Materials Processing
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    • v.32 no.6
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    • pp.360-366
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    • 2023
  • This study is concerned with the surface quality of products according to the material and coating condition of the forming tool in incremental sheet forming. Three forming tools, SKD11 with and without diamond-like-coating (DLC) and polymer tool tip, were used to form conical and pyramidal geometries to take into account the influence of friction between the forming tool and the sheet on the surface quality including geometric accuracy of deformed samples. Each test was performed using SUS304 with a thickness of 0.4 mm according to different incremental depths per lap of 0.5 mm, 1.0 mm, and 1.5 mm for the contour tool path, considering the increase in normal force which is associated with the frictional behavior during local deformation. The surface quality was then investigated through surface roughness measured with KEYENCE VR-6000 and relative strain distribution including deformed shape analyzed with ARGUS which is a non-contact optical strain measurement system. Differences between 3D CAD surfaces and captured geometry from experiments were evaluated to compare the effect of friction on geometric accuracy. From comparisons of experimental results, it was revealed that the polymer-based tool tip can improve surface quality and geometric accuracy by reducing the undesired material flow due to local friction in the increment sheet forming process.