• Title, Summary, Keyword: Experience Cycle

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The Study of the Cycle Time Improvement by Work-In-Process Statistical Process Control Method for IC Foundry Manufacturing

  • Lin, Yu-Cheng;Tsai, Chih-Hung;Li, Rong-Kwei;Chen, Ching-Piao;Chen, Hsien-Ching
    • International Journal of Quality Innovation
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    • v.9 no.3
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    • pp.71-91
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    • 2008
  • The definition of cycle time is the time from the wafer start to the wafer output. It usually takes one or two months to get the product since customer decides to produce it. The cycle time is a critical factor for customer satisfaction because it represents the response time to the market. Long cycle time reflects the ineffective investment for the capital. The cycle time is very important for foundry because long cycle time will cause customer unsatisfied and the order loss. Consequently, all of the foundries put lots of human source in the cycle time improvement. Usually, we make decisions based on the experience in the cycle time management. We have no mechanism or theory for cycle time management. We do work-in-process (WIP) management based on turn rate and standard WIP (STD WIP) set by experiences. But the experience didn't mean the optimal solution, when the situation changed, the cycle time or the standard WIP will also be changed. The experience will not always be applicable. If we only have the experience and no mechanism, management will not be work out. After interview several foundry fab managers, all of the fab can't reflect the situation. That is, all of them will have an impact period after product mix or utilization varied. In this study, we want to develop a formula for standard WIP and use statistical process control (SPC) concept to set WIP upper/lower limit level. When WIP exceed the limit level, it will trigger action plans to compensate WIP Profile. If WIP Profile balances, we don't need too much WIP. So WIP level could be reduced and cycle time also could be reduced.

Experience of Frailty in Korean Elderly: A Phenomenological Study Utilizing the Colaizzi Method (한국 노인의 허약 경험: Colaizzi의 현상학적 방법으로)

  • Park, Jin Kyoung
    • Journal of Korean Academy of Nursing
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    • v.47 no.4
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    • pp.562-574
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    • 2017
  • Purpose: This study attempts to explore the subjective experience of frailty among elderly individuals in Korea. Methods: From June to August in 2014, 11 elderly persons who had experienced frailty in a community were interviewed. For data analysis, the method suggested by Colaizzi was applied as a phenomenological method. Results: According to the analysis, the study participants' frailty process was structured in seven categories: (a) 'natural phenomenon with ageing,' (b) 'life force comes to an end,' (c) 'the light in my heart turns off,' (d) 'unavoidable situation,' (e) 'continuous and connected vicious cycle,' (f) 'the limit of recovery energy already passes,' and (g) 'life is supported by someone's help.' Conclusion: The frailty experience in the participants is a natural process of aging, which cause vicious cycle acting with each other among physical, psychological, and social health. It is said that the cycle of frailty was started from weight loss and insufficient sleep, and boostered by pain. The participants from repetition of the vicious cycle become exhausted and pass the threshold of their recovery energy at some points. If they meet with sudden accidents such as falling, traffic accident and so on, they become to live a dependent life supported by someone's help in a moment. To prevent frailty and worsening conditions in Korean elderly individuals, it is recommended to provide a interventional programs using this study's results.

Workers' Experiences in Shift Work (근로자들의 교대근무 경험)

  • Kim, Young-Hea;Kim, Young-Mi;Koo, Mi-Jee;Kim, So-Hee;Lee, Nea-Young;Chang, Koung-Oh
    • Journal of Korean Academy of Community Health Nursing
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    • v.18 no.2
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    • pp.284-292
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    • 2007
  • Purpose: The purpose of this study is to explore and understanding the nature of the shift workers' experience in industries requiring 24 hours-a-day service provision and support. For the Purpose, the present researcher made a research Question, "What are workers' experience in the shift work?" Methods: In the study, 5 male shift workers, 3 female shift worker and a woman (key informant) whose husband is a shift worker participated. Then profound interviews with the participants were made after their agreement. Results: The researcher classified the significant statements under 6 theme clusters, 1) sense of difference; 2) worries about health; 3) draining of emotion; 4) anxiety; 5) sadness; and 6) being comfortable. Conclusions: Shift work which is inevitable in modern society may have severe influences on shift workers' physical, mental and psychological aspects by causing their work cycle rhythm to be unbalanced. Finally, the researcher hopes that the results of the study would help understand workers' life and increase social concern and support to the workers.

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Applications of Experiential Learning Theory to Graduate Medical Education (졸업 후 의학교육에 경험학습이론의 활용)

  • Lee, Young Hee;Kim, Byung Soo
    • Korean Medical Education Review
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    • v.11 no.1
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    • pp.11-20
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    • 2009
  • The purpose of this study was to introduce the concepts of experiential learning and the Kolb's model, and to review some applications of experiential learning theory in graduate medical education. The published literature on GME and education for general practitioners applying the experiential theory and the Kolb's model was reviewed. Experience learning defined the cyclical learning process which emphasizes the learners' reflective thinking of the learners' concrete experiences and their active participation in continuous learning actives. Kolb includes this 'cycle of learning' as a central principle in his experiential learning theory. This is typically expressed as a four-stage cycle of learning. Kolb's cycle moves through concrete experience(CE), reflective observation(RO), abstract conceptualization(AC) and active experimentation(AE). Components of continuing education of the adult learner were based on autonomy, context of learning, and competence and performance as educational objectives. Some strategies for graduate medical education were reflective thinking, self-directed learning, morning reporting and feedback with peer review, etc. Opportunities for learning from experience in practical life can be made to enhance reflective thinking and performance of practitioners. Strategies to develop reflective practice among physicians should be explored by further research.

Occupational Accident Experience by Working Life Cycle of Korean Workers (한국 근로자의 근로생애주기별 사고경험률)

  • Cho, Gyo-Young;Choi, Eunsuk;Kwon, Min Jung;Lee, Chang Hun
    • Korean Journal of Occupational Health Nursing
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    • v.27 no.4
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    • pp.224-234
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    • 2018
  • Purpose: In this study, we attempted to analyze the occupational accident experience rate by working life cycle of Korean workers considering entrance and turnover in their jobs. The specific goal of this study was to calculate the accident experience rate according to workers' turnover history and previous accident experience. Methods: We constructed a cumulative data set of 90,338 cases of workers' accident experiences in their jobs from the Fourth Korean Working Conditions Survey. The accident experience rates according to workers' turnover and previous accident experiences were analyzed using descriptive statistics and analysis of variance. Results: In this study, the cumulative accident experience rate of Korean workers was found to be 5.2%. It was confirmed that the accident experience rate of workers increased as the turnover frequencies increased. In addition, we analyzed only the data of the workers who had experienced turnover and found that the accident experience rate after turnover increased about 7.5 times when workers had experienced accidents in the past. Conclusion: To prevent occupational accidents in workers, safety strategies should consider a worker's previous job history and injury experiences. It will also be necessary to focus preventive efforts on new and young workers through ongoing monitoring and on-the-job training.

A Study on Difficulties Experienced by Pre-service Elementary School Teachers in Carrying out a Research on 'the Life Cycle of a Common Cabbage Butterfly' (초등 예비교사들이 '배추흰나비 한살이' 탐구 수행과정에서 겪는 어려움)

  • Kim, Dong-Ryeul
    • Journal of Korean Elementary Science Education
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    • v.33 no.2
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    • pp.306-321
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    • 2014
  • This study aims to analyze difficulties that pre-service elementary teachers experience in investigating the life cycle of a common cabbage butterfly in person. As difficulties they face during the process of this research, they pointed out collecting eggs, observing molting, creating environments for a breeding cage, feeding, building a breeding cage, and making butterfly specimens. Out of all the environmental difficulties related to their school fields, they pointed out a difficulty of time management most of all, followed by placing a breeding cage in the classroom and the lack of microscopes for observation. In regard to difficulties related to their evaluations on students' activities, they found it difficult to evaluate students' activity with the life cycle of an insect in the aspect of knowledge and even to set evaluation criteria. Besides, many of them responded that it would be appropriate to evaluate a research on the life cycle of an insect through a portfolio or an observation journal. In regard to difficulties in terms of teachers' knowledge, they found it difficult to understand insect molting, metamorphoses, complete metamorphoses, incomplete metamorphoses, the structure of an insect body, and how to distinguish a female insect from a male one. In regard to the application of class models, they knew it is important for students to have various experiences through direct observation, so the experience-based learning model was proper for the process of observing the life cycle of a common cabbage butterfly. However, they found it difficult for students to observe each stage of the life cycle in person.

Work-Family Compatibility Experience of Married Nurse: Focusing on the Expanding Stage of the Family Life Cycle (기혼간호사의 일-가정양립경험: 가족확대기 간호사를 중심으로)

  • Kim, Han-Na;Kim, Jeong-Seon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.2
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    • pp.545-559
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    • 2016
  • This study examined the work-family compatibility experience of married nurses. The participants of this research were 7 registered nurses who are on the expanding stage of their family life cycle. Data were collected by individual in-depth interviews from June 10 to November 30, 2015 and analyzed using phenomenological methodology by Colaizzi (1978). The results showed that the work-family compatibility experience of married nurses may be categorized into 4 categories, 'the reality of work and parenting', 'external and internal conflicts about the compatibility of work and parenting', 'compromise with reality for solving the difficulty of compatibility', 'growing desire and efforts for compatibility', and may be identified with 12 theme clusters and 29 themes. The worthiness as a professional woman and happiness in child rearing are the driving force of the compatibility of work and family in married nurses. Therefore, the continued support of government policies and family is important for married nurses to maintain work and family balance.

Cycle Reduction Simulation for Turning Process (선삭 가공 사이클 단축 시뮬레이션)

  • Kim, Sun-Ho;Cho, Hang-Deuk;Kim, Tae-Ho
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.14 no.1
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    • pp.1-8
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    • 2015
  • Productivity of machining using machine tools is affected by cutting conditions such as cutting speed, feedrate and depth. However, undesirable conditions that lengthen the machining cycle and shorten the tool life occur frequently because determination of cutting condition is known to depend on human experience. This paper presents a method of cycle reduction by removing undesirable conditions. For cycle reduction, maximum cutting load is determined using commercial FEM simulation code. The feedrate in the NC program is altered based on a predetermined cutting load value. To make a decision on the proposed effectiveness, a simulation is performed for the brake hub parts of an automobile. From the evaluation, it was found that the cycle reduction was under 15%.

Design and Implementation of Plant's Life Cycle Educational Application (식물의 한살이 교육용 어플리케이션 설계 및 구현)

  • Kim, Kapsu;Kim, Hyosung
    • Journal of The Korean Association of Information Education
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    • v.17 no.3
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    • pp.357-365
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    • 2013
  • The purpose of this paper is to implement the educational application related to the Plant's Life Cycle Unit in 4th Grade Science Textbook, based on the National Curriculum. This should lead to teachers incorporating them into classes and for students to get practical help when they are studying about plants. Through this application, teachers will be able to experience the so-called Blended Learning while using both off-line and mobile teaching methods. It will also be possible for students to review what they learn during the classes and do their projects regardless of time and place. This type of learning is expected to motivate learners and enhance the learning experience by stimulating the students' interest.

Negative Word-of-Mouths in Online Community : Contents and Life Cycles

  • Wang, Chih-Chien;Wang, Pei-Hua;Yang, Yann-Jy;Yang, Yolande Y.H.
    • Journal of Information Technology Applications and Management
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    • v.20 no.3
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    • pp.79-92
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    • 2013
  • Word-of-mouths (WOMs) are now an important information source for purchase decision. Due to the advance in internet technology, people now can share online their consumption experience, both positive and negative, to others. The WOMs may diffuse to not only their friends but also enormous online users. When consumers dissatisfy the product or service, they may share the dissatisfactory experience to others as WOM, which may bring out discussions for the product or service. The discussions on the negative WOM may help to communicate the negative information to enormous others, which may damage the sale of the product or service. The diffusion and life cycle of negative WOM is an important issue for managers. However, few studies focus on it. Thus, the current study focuses on the discussion pattern and life cycle of negative WOMs by observing the 782 discussion articles in a large online community.