• Title/Summary/Keyword: tool quality

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Tool Design in a Multi-stage Rectangular Cup Drawing Process with the Large Aspect Ratio by the Finite Element Analysis - Part I. Tool Design (유한요소해석을 이용한 세장비가 큰 직사각컴 다단계 성형공정의 금형설계 - Part I. 금형설계)

  • Kim, S.H.;Kim, S.H.;Huh, H.
    • Transactions of Materials Processing
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    • v.10 no.2
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    • pp.144-150
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    • 2001
  • Tool design is introduced in a multi-stage rectangular cup drawing process with the large aspect ratio. Finite element simulation is carried out to investigate deformation mechanisms with the initial tool design. The analysis reveals that the difference of the drawing ratio and the irregular contact condition produces non-uniform metal flow to cause wrinkling and severe extension. For remedy, the modification guideline is proposed in the design of the tool and process. Analysis results confirm that the modified tool design not only improves the quality of a deep-drawn product but also reduces the possibility of failure.

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An Efficient Study of Expression with 2D Game Tool -Focused on Production of a Game "Shooting Monster" with Spine Tool (2D 게임 툴을 이용한 효율적인 표현 연구 - 스파인 툴을 이용한 "슈팅몬스터" 게임제작을 중심으로)

  • Lee, Heon-Woo
    • Journal of Korea Multimedia Society
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    • v.19 no.7
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    • pp.1208-1215
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    • 2016
  • This study suggests efficient production of game with spine tool that is 2D game tool. For this, the researcher studies process and efficiency of game development by focusing on production of a game "Shooting Monster" Version 1 in service of Google Store at present. Production tools in a contents field are sharply changed. In addition, these tools are automatized into new version and efficient product. These tools help manufacturers in increasing quality of contents and time efficiency. Therefore, the researcher examines understanding of development process of existing 2D game and problems in development stage of graphic character, and analyzes production stage of character animation using spine tool, so suggests effective process of production in terms of production. The purpose of this study is to suggest the direction about graphic efficiency of tool by accessing production process to train working-level talented people in 2D mobile game field.

Assessing the Health Benefits of the Seoul Air Quality Management Plan Using BenMAP

  • Park, Jeong-Im;Bae, Hyun-Joo
    • Journal of Environmental Health Sciences
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    • v.32 no.6
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    • pp.571-577
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    • 2006
  • Health benefits from implementing air quality control measures were assessed using the Environmental Benefits Mapping and Analysis Program (BenMAP). BenMAP developed by US EPA is a GIS-based software tool that estimates the health impacts and associated economic values connected with changes in ambient air pollution. Once a set of BenMAP-required data was collected, the health benefits from implementing Seoul Air Quality Management Plan (SAQMP), an official AQ improvement plan for Seoul Metropolitan Area, was assessed using BenMAP. The PM10 concentrations assuming the SAQMP implemented successfully were predicted with the MM5 (Mesoscale Meteorological model version 5)/CMAQ (Community Multiscale Air Quality) model. A PM 10 exposure related premature mortality function was adopted trom a well-known epidemiology study. Economic valuation functions driven from benefit transfer methods were utilized. Through the SAQMP, PM10 concentrations were estimated to be lowered by $15{\mu}g/m^3\;to\;75{\mu}g/m^3$ depending on air quality modeling grids. 5,569 premature deaths (95% CI $3,264{\sim}7,809$ deaths) could be avoided in the Seoul Metropolitan Area. The economic value of the deaths avoided was estimated to $13.2 billion $(95%\;CI\;$890\;million{\sim}$28.2\;billion)$ using the benefit transfer value. BenMAP could be a useful tool for developing effective air quality improvement policy, enabling the policy makers to anticipate the effects of regulatory changes on people's health and the economy.

The Trajectory of Fatigue and Quality of Life in Stomach Cancer Patients Receiving Chemotherapy (위암환자의 항암 화학요법에 따른 피로와 삶의 질 변화 양상)

  • 양영희
    • Journal of Korean Academy of Nursing
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    • v.32 no.4
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    • pp.482-491
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    • 2002
  • This study aimed to identify the change patterns of fatigue and quality of life during consecutive chemotherapies and to determine the relationship of these two variables. Method: Stomach cancer patients receiving chemotherapy were recruited from a university hospital in Seoul. Each chemotherapy, subjects were asked to respond to the questionnaires regarding their fatigue and quality of life. The number of subjects who completed 4 cycles and over was 11. Fatigue was measured with Lee's tool(1999). Quality of life was measured with a tool revised by the author based on Padilla et al(1983). Result: Most patients were in 1st stage(5 patients) or 3rd stage(5 patients). Fatigue was revealed at its highest level in the 3rd or 4th chemotherapy and at its lowest level in the 1st or 6th chemotherapy. A quality of life appeared at its highest level in the 5th or 6th chemotherapy and the lowest level in 3rd or 4th chemotherapy. Conclusion: Among 6 cycles of chemotherapy, in 3-4th chemotherapy the fatigue was the highest and the quality of life were the lowest. Many patients decided to stop treatment at the same period. Therefore we can recognize cancer patients receiving chemo- therapy are in the highest risk at the time of the 3-4 th chemotherapy.

Validity and Reliability of the Korean Version of the Observable Indicators of Nursing Home Care Quality Evaluation Instrument (한국형 노인요양시설 질 관찰평가도구의 타당도와 신뢰도 분석)

  • Lee, Ji-A
    • Journal of Korean Academy of Nursing
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    • v.38 no.3
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    • pp.474-482
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    • 2008
  • Purpose: The purposes of this study were; 1) to test the validity and reliability of the Korean version of Rantz's Observable Indicators of Nursing Home Care Quality Instrument (ONHQ) and 2) to evaluate the quality of Korean nursing homes. Methods: The study employed a three-phase methodological research design. 1) The original instrument of Rantz's. ONHQ was translated into Korean and modified by Korean nursing home experts. 2) A pilot study using the modified instrument was done in 20 nursing homes to examine inter-rater reliability. 3) The validity and reliability were tested.in 98 nursing homes. Results: Seven factors were extracted through factor analysis: 'communication', 'care delivery', 'grooming', 'odor, 'environment-basics', 'environment-access', and 'environment-homelike'. These factors explained 86.07% of the total variance. Cronbach's alpha coefficient of the 30 items was .97 indicating a high internal consistency of the instrument. Inter-rater reliability according to Kappa was .82. The average score of nursing home quality was 112.07 indicating an average range of quality level. Conclusion: The Korean version of the ONHQ was identified as a tool with a high degree of validity and reliability. This tool can be effectively used to assess the quality of nursing homes by professions as well as family members.

Case study of Utilizing Automated Tools for Improving Maritime Software Quality (해양 소프트웨어 품질 제고를 위한 자동화 도구 활용 사례 연구)

  • Lim, Sang-woo;Kim, Kilyong;Lee, Seojeong
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2015.10a
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    • pp.51-52
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    • 2015
  • IMO has been proceeding in the maritime SQA for software quality is considered to be essential for the development of the introduction of the e-Navigation. In order to ensure software quality, follow the prescribed procedures throughout the software development project and create the output as a result of executing the respective steps. This paper is introduced a case for applying to maritime software development using the tool that is capable of real-time monitoring and automated documentation. Also, it is discussed the improvement of procedures for applying the expected effects and maritime SQA for thr tool utilization. The Development of customized tools for maritime SQA that is reflected an improved procedure for tool is the future goals.

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A Study on the Relationship of the Loneliness, Self-esteem, and Quality of Life on the Hearing Disturbance Aged (청력 장애 노인들의 고독감, 자아 존중감 및 삶의 질과의 관계연구)

  • Lee, Hyun-Jung;Sok, So-Hyune;Kim, Kwuy-Bun
    • Journal of East-West Nursing Research
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    • v.9 no.1
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    • pp.35-45
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    • 2004
  • This study as a cross survey study was conducted to provide basic data for more practical approach to nursing the aged, by analyzing the relationship of the loneliness, self-esteem and quality of life on the hearing disturbance aged. This study was based on the survey data from the 90 aged, who are over sity years old and resident in Seoul. In order to measure the general characteristics and subjective audition, Cantril's Ladder Scale Tool was used. For the loneliness, UCLA Loneliness Scale Tool (translated into Korean to suit the Korean environment by Kim's). In order to measure the self-esteem, Rosenberg's Self-esteem Measurement Tool (translated into Korean by Chun) was used. No's Quality of Life Measurement Tool was used to the measure the quality of life. The Data were collected by direct interviewing on the subjects for this study from August 10, 1999 to September 15, 1999. In accordance with each purpose of this study, appropriate analyzing methods such as Descriptive Statistics, T-test, and ANOVA were used in analyzing the collected data. Pearson correlation coefficient was used to test the relationship of the loneliness, self-esteem and quality of life on the hearing disturbance aged. The result of this study is as follows: 1) The average of the degrees of subjective audition was 7.22, The factors that cause the result were sex, religion, the perception of health, the married state. 2) The average of the degrees of loneliness was 55.18, The factor that cause the result was the perception of health. 3) The average of the degrees of self-esteem was 28.42, The factors that cause the result were the number of family, the number of children, the perception of health. 4) The average of the degrees of quality of life was 71.87 the factors that cause the result were age, education, the number of children, the perception of health. 5) Correlation of Loneliness, self-esteem and quality of life is the perception of loneliness showed significant negative correlation with self-esteem (r=-.466, p=.0001) and quality of life (r=-.450, p=.0001). As a result of analysis above: Because of the recognition change of the aged, it seems to them that the subjective audition scale on the hearing disturbance aged is measured by only 10-point ladder scale is inappropriate. Therefore, it is necessary that the physiologic-index can confirm more exactly should be applied to them. It is very important that the social-psychological factor that has influence on the aged should be the self-perception of health. Thus, proper development of nursing intervention should be required to process in the self-perception of health on the aged.

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Case study of customizing a Continous Integration Tool for Maritime Software (CI툴을 이용한 해양소프트웨어품질 맞춤형 프로세스 사례)

  • Lim, Sangwoo;Kim, Kilyong;Lee, Seojeong
    • Journal of Digital Contents Society
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    • v.16 no.6
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    • pp.893-900
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    • 2015
  • IMO has been proceeding in the maritime SQA for software quality is considered to be essential for the development of the introduction of the e-Navigation In order to ensure software quality, follow the prescribed procedures throughout the software development project and create the output as a result of executing the respective steps. This paper is introduced a case for applying to maritime software development using the tool that is capable of real-time monitoring and automated documentation. Also, It is discussed the improvement of procedures for applying the expected effects and maritime SQA for the tool utilization. The Development of customized tools for maritime SQA that is reflected an improved procedure for tool is the future goals.

Optimal Selection of Process Plans for Minimization of the Number of Tool Switches (공구교체 횟수를 최소로 하는 가공방법의 선택문제)

  • Gi, Jae-Seok;Gang, Maeng-Gyu
    • Journal of Korean Society for Quality Management
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    • v.18 no.2
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    • pp.93-99
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    • 1990
  • This paper considers the selection of process plans for a flexible manufacturing machine. Most of the planning models for the automated manufacturing systems are based on the assumption that for each part there is only one process plan available. This paper considers that for each part a number of different process plans are available, each of which may require specific types of tools. If the requisite tools are not on the machine, one or more tool switches must occur before the process plan can be processed. This paper develops an optimal algorithm of branch and bound method for the selection of process plans to minimize the number of tool switches.

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Study on decreasing displacement of the MC(machining center) moved column with high-speed for optimization of acceleration and DOE(Design Of Experiment) (가속도 최적화 및 형상 최적화를 통한 수직 컬럼 이동형 머시닝 센터의 진동 저감에 대한 연구)

  • Cho, Young-Duk;Lee, Choon-Man;Yoon, Sang-Hwan;Chung, Won-Jee
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.17 no.1
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    • pp.35-42
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    • 2008
  • By the reason of increased demand of high productivity and quality, the manufacturer have an effort in many directions of a machine tool industries. Among there, we proposed method of decreasing displacement in MC(machining center). In other words, Quality related with vibration of a tool cutting products. For decreasing it, improved by optimizing a shape of the column-part and acceleration curves of motors. In this paper we could find design factors has much influence on decreasing the displacement using the DOE(Design of Experiments) and optimized the level of the factors using $ADAMS^{(R)}$ and $MINITAB.^{(R)}$ And we suggest optimized a acceleration curve using $Matlab^{(R)}$.