• 제목/요약/키워드: Value Adjustment

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Problems of Special Causes in Feedback Adjustment

  • Lee, Jae-June;Cho, Sin-Sup
    • 품질경영학회지
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    • 제32권2호
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    • pp.201-211
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    • 2004
  • Process adjustment is a complimentary tool to process monitoring in process control. Process adjustment directs on maintaining a process output close to a target value by manipulating another controllable variable, by which significant process improvement can be achieved. Therefore, this approach can be applied to the 'Improve' stage of Six Sigma strategy. Though the optimal control rule minimizes process variability in general, it may not properly function when special causes occur in underlying process, resulting in off-target bias and increased variability in the adjusted output process, possibly for long periods. In this paper, we consider a responsive feedback control system and the minimum mean square error control rule. The bias in the adjusted output process is investigated in a general framework, especially focussing on stationary underlying process and the special cause of level shift type. Illustrative examples are employed to illustrate the issues discussed.

Problems of Special Causes in Feedback Adjustment

  • Lee Jae June;Cho Sinsup;Lee Jong Seon;Ahn Mihye
    • 한국품질경영학회:학술대회논문집
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    • 한국품질경영학회 2004년도 품질경영모델을 통한 가치 창출
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    • pp.425-429
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    • 2004
  • Process adjustment Is a complimentary tool to process monitoring in process control. Process adjustment directs on maintaining a process output close to a target value by manipulating another controllable variable, by which significant process improvement can be achieved. Therefore, this approach can be applied to the 'Improve' stage of Six Sigma strategy. Though the optimal control rule minimizes process variability in general, it may not properly function when special causes occur in underlying process, resulting in off-target bias and increased variability in the adjusted output process, possibly for long periods. In this paper, we consider a responsive feedback control system and the minimum mean square error control rule. The bias in the adjusted output process is investigated in a general framework, especially focussing on stationary underlying process and the special cause of level shift type. Illustrative examples are employed to illustrate the issues discussed.

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건강 보험료 개편에 따른 보험료 조정 계수의 적합성: 취업성공패키지 대상자 선정을 중심으로 (The adjustment coefficient of health insurance in the successful employment package by the health insurance reform)

  • 신영석;김은아;이진형
    • 한국병원경영학회지
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    • 제24권4호
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    • pp.33-42
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    • 2019
  • Purpose: many domestic welfare programs use the amount of health insurance premiums as a way of measuring individuals' income levels for administrative convenience. As health insurance reform has been made, we examines the income level is still appropriately measured by the health insurance premiums for the employment success package as one of domestic welfare program. Methodology/Approach: we investigate whether the upper limit of the premiums of the self-employed health insured is appropriate or not after healthcare reform, which currently calculated by multiplying the insurance premium of the employee based insured by the adjustment factor (1.2). Findings: we examined appropriateness of the adjustment factors by comparing the premiums before and after the healthcare reform by utilizing the national health insurance data as well as Korea Welfare panel data. We found that the new value of adjustment factor (1.0~1.1) is smaller than the current one (1.2). Practical Implications: to improve the equity between the employee and the self-employed insured after the health insurance reform, the adjustment factor should be lower.

간호대학생의 소명의식과 직업가치인식, 적응자원이 대학생활 적응수준에 미치는 영향 (The Influence of Calling, Work Values and Adaptation Resources on the Nursing Students' College Adjustment)

  • 김문정;강경자
    • 수산해양교육연구
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    • 제28권3호
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    • pp.667-677
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    • 2016
  • Nursing students are exposed to a variety of stressors. The purpose of this study was to identify the factors influencing nursing students' college adjustment related to calling, work values and adaptation resources. The survey conducted in three nursing colleges (n=313) from 18th November to 30th December in 2015. The data were analyzed with descriptive statistics, independent t-tests, Pearson's correlation coefficient and multiple regression analyses using SPSS/Win 21 software. 41.9% of variance in college adjustment was accounted for by purpose/meaningfulness(t=6.871, p<.001), emotional stability(t=6.224, p<.001), altruism (t=2.708, p=.007), school year(4th)(t=3.073, p=.002), Hospitals in affiliation(t=2.822, p=.005), GPA(t=2.558, p=.011). The model was statistically significant explaining 41.9% of the variance(F=17.843, p<.001). This study suggests that a strategy increasing college adjustment for nursing students, is needed to consider purpose/meaningfulness, emotional stability, altruism.

Effects of Number of Washes and pH Adjustment on Characteristics of Surimi-like Materials from Pork Leg Muscle

  • Jin, Sang-Keun;Kim, Il-Suk;Choi, Yeung-Joon;Yang, Han-Sul
    • Asian-Australasian Journal of Animal Sciences
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    • 제22권4호
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    • pp.584-590
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    • 2009
  • The effects of different washing time and pH adjustment of surimi-like materials from pork leg on quality characteristics were investigated. Surimi was made from pork leg by washing two or four times with water, as well as by pH adjustments of 3.0 or 11.0. The control surimi was made by two times washing from Alaska pollock. The content of crude protein was higher in the surimi manufactured from pork leg with pH adjustments. The highest gel strength was found in the control, and the control had greater lightness and whiteness value. The control had higher texture attributes than the other samples, whereas the surimi from pork leg made by a pH 11.0 adjustment had higher texture attributes than the pH 3.0 adjustment. The sensory color was higher in the control compared to other surimi samples, whereas aroma was lower in the control. However, there were no significant differences in overall acceptability among the surimi samples.

Optimum Air-Gap Flux Distribution with Third Harmonic Rotor Flux Orientation Adjustment for Five-Phase Induction Motor

  • Kang, Min;Yu, Wenjuan;Wang, Zhengyu;Kong, Wubin;Xiao, Ye
    • Journal of Electrical Engineering and Technology
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    • 제13권1호
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    • pp.315-325
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    • 2018
  • This paper investigates optimum air-gap flux distribution with third harmonic rotor flux orientation adjustment for five-phase induction motor. The technique of objective is to generate a nearly rectangular air-gap flux, and it improves iron utilization under variation loading conditions. The proportional relations between third harmonic and fundamental plane currents is usually adopted in the conventional method. However, misalignment between fundamental and third harmonic component occurs with variation loading. The iron of stator teeth is saturated due to this misalignment. This problem is solved by third harmonic rotor flux orientation adjustment simultaneously, and direction and amplitude are changed with mechanical load variation. The proposed method ensures that the air-gap flux density is near rectangular for a maximum value from no load to rated load. It is confirmed that the proposed method guarantees complete both planes decoupling with third harmonic flux orientation adjustment. The effectiveness of the proposed technique is validated experimentally.

Evaluation of Allowable Bending Stress of Dimension Lumber; Confidence Levels and Size-adjustment

  • Pang, Sung-Jun;Lee, Jun-Jae;Oh, Jung-Kwon
    • Journal of the Korean Wood Science and Technology
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    • 제41권5호
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    • pp.432-439
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    • 2013
  • The aim of this study was to investigate the processes for evaluating the allowable bending stress. The confidence levels and the size-adjustment in standards were reviewed with experimental data. The results show that, (1) KS F 2152 was more strict than others overseas standards due to the higher confidence level. The 5% NTL of bending strengths by a method in KS F 2152 were lower than the overseas standards and more specimens were required for evaluating the structural properties according to KS F 2152. (2) Due to the absence of size-adjustment method in domestic standards, the specified size and the exponential parameters on the size-adjustment equation were reviewed by size factors. The specified size (width: 286 mm, length: 6096 mm), and the exponential parameters (w: 0.29, l: 0.14) will be suitable for developing the allowable bending stress in domestic standard. (3) The size adjusted allowable bending stresses of No. 2 grade Korean pine were lower than the allowable stresses tabulated in KBC even though less strict method (75% confidence level) to calculate 5% value was used. The allowable stresses tabulated in KBC are needed to be reviewed by continuous experimental data.

개폐식 막 장력을 고려한 스포크-휠 케이블 구조의 설계 형상 조절 기법 (Adjustment of Initial Shape for Spoked Wheel Cable Structures Considering Retractable Membrane's Tension)

  • 하현주;손수덕;이승재
    • 한국공간구조학회논문집
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    • 제19권1호
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    • pp.109-116
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    • 2019
  • In this paper, the shape adjustment algorithm of the spoked wheel cable structures with retractable membrane system is studied. The initial tension of the membrane or cable is necessary to form the structure and its value is determined by the design shape. However, due to internal and external environmental influences, its shape may be different from the initial designed shape. In the case of the cable structures covered in this study, tension adjustment is necessary to maintain the designed shape because it influences the tension of the cable depending on the state of the retractable membrane. Therefore, we proposed an adjustment algorithm of an initial shape based on the force method. The effectiveness and validity of the methodology were examined through the applicable cable structures. The results of the shape adjustment analysis of the symmetric spoked wheel cable model were reliable and accurate results were obtained.

정태적 절충이론과 자본조달순위이론의 비교 (Comparison between static tradeoff theory and pecking order theory)

  • 박정주
    • 경영과정보연구
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    • 제31권1호
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    • pp.89-116
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    • 2012
  • 본 논문은 2001년부터 2010년의 표본기간 동안 상장된 제조업을 대상으로 Shyam-Sunder and Myers(1999) 그리고 Frank and Goyal(2003)의 목표조정모델과 자본조달순위모델에 기초하여 Chirinko and Singha(2000)의 비판적인 관점이 반영된 실증분석 논문이다. Shyam-Sunder and Myers(1999)의 모형을 통해 분석한 결과, 목표 조정계수는 0과 1 사이에 값을 가지며 설명력이 높고 유의한 변수인 반면에 자금 부족분 계수는 0에 가까워 자본조달이론을 지지 하기에는 작은 값을 가졌다. 또한 Frank and Goyal(2003)의 방법론을 사용하여 실증분석한 결과 자본조달순위이론은 지지되지 않았다.

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전문대생의 심리적특성, 직업가치, 대학생활적응간의 영향관계 (Psychological Characteristics of College St, Work Values, and Effect Relationship between Adjustment to College)

  • 권은경
    • 디지털융복합연구
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    • 제10권6호
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    • pp.171-179
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    • 2012
  • 본 연구에서는 전문대생의 심리적 특성과, 직업가치, 대학생활적응간의 영향관계를 규명함으로써 대학생활의 중요성 및 대학생활지도의 기초가 되고자 하였다. 연구결과를 요약하면 첫째로, 전문대생의 심리적 특성은 대학생활적응에 긍정적 영향을 미치는 것으로 나타났다. 특히 자아존중감, 자아정체감의 형성이 어떻게 되느냐에 따라서 대학생활적응이 잘 된다는 결과를 얻을 수 있었다. 둘째, 전문대생의 심리적 특성은 직업가치형성에는 영향을 미치지 않는 것으로 나타났다. 마지막으로 직업가치는 대학생활적응에 영향을 미치지 않는 것으로 나타났다.