• 제목/요약/키워드: power relationship

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Modeling Power Battery Supply Chain Based on System Dynamics

  • Chen, Jinhui;Jin, Chanyong
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2022년도 춘계학술대회
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    • pp.683-685
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    • 2022
  • By comparing the status quo of recycling of new energy vehicles and waste power batteries at home and abroad, analyze the central relationship between recycling of waste power batteries and the interaction between various factors in China, consider the characteristics of blockchain technology, organically integrate into the reverse recycling network, and quantify the relevant factors. Make use of the constructed model to simulate, forecast, and compare and analyze whether to adopt blockchain technology and, on this basis, analyze the intrinsic relationship between various variables. To explore the different effects brought by changing different countermeasures according to different subjects, and expand it to the factor analysis in the whole reverse recycling supply chain to help the government and operators and enterprises to make more objective and scientific decisions, to provide a particular reference for promoting the recycling of waste power batteries and the development of power battery manufacturing industry in China.

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CIO의 특성이 CIO의 역할수행에 미치는 영향에 관한 연구 (A Study on the Effect of CIO′s Characteristics on CIO′s Role)

  • 김경호;한영춘
    • 한국정보시스템학회지:정보시스템연구
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    • 제10권2호
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    • pp.65-88
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    • 2001
  • The purpose of this study is to examine the relationship between CIO's characteristics and CIO's role. The CIO's characteristics include CEO/CIO relationship, CIO's power in his/her organization, hire type of CIO, and career background of CIO. The results of this study are as follows: part of the CIO's characteristics has a positive relationship with the CIO's role. In other words, the CIO's role is influenced by the CEO/CIO relationship, the CIO's power, and the hire type of CIO. However, the relationship between the career background of the CIO and the CIO's role is not statistically significant.

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An Analysis of the Relationship between Elevator Emergency(Entrapment) and Situation Measurement of Sag/Interruptions at the Switchboard

  • Kim, Gi-Hyun;Lim, Young-Bae;Bai, Seok-Myung;Kim, Jae-Chul;Lee, Hee-Tae
    • 조명전기설비학회논문지
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    • 제21권4호
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    • pp.36-44
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    • 2007
  • This study researched the mutual relationship between elevator emergencies(sudden stops, entrapment) and power quality such as voltage interruptions or sags. To analyze the power quality at the elevator switchboard of an apartment, the on-line power quality(sag, swell, and interruption, etc.) were measured and error messages(under voltage error, etc.) in the elevator control room were researched. Also the performance and susceptibility for stops were evaluated and stated through the testing of three pieces of simulated test equipment with an EN12016(2004) standard setting and the magnitude and duration data of the measured sag or interruption. This paper will use these data in the analysis of the mutual relationship between power quality and elevator emergencies.

균형된 실험계획법에서 그래프를 활용한 실험의 크기의 효율적인 결정 (Efficient determination of the size of experiments by using graphs in balanced design of experiments)

  • 임용빈;윤소라;정종희
    • 품질경영학회지
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    • 제46권3호
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    • pp.651-658
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    • 2018
  • Purpose: The algorithm described in Lim(1998) is available to determine the sample size directly given specified significance level, power and signal-to-noise ratio. We research on the efficient determination of the sample size by visual methods. Methods: We propose three graphs for investigating the mutual relationship between the sample size r, power $1-{\beta}$ and the detectable signal-to-noise ratio ${\Delta}$. First graph shows the relationship between ${\Delta}$ and $1-{\beta}$ for the given r and it can be checked whether the power is sufficient enough. Second graph shows the relationship between r and ${\Delta}$ for the given power $1-{\beta}$. Third graph shows the relationship between r and $1-{\beta}$ for the given ${\Delta}$. It can be checked that which effects are sensitive to the efficient sample size by investigating those graphs. Results: In factorial design, randomized block design and the split plot design how to determine the sample size directly given specified significance level, power and signal-to-noise ratio is programmed by using R. A experiment to study the split plot design in Hicks(1982) is used as an example. We compare the sample sizes calculated by randomized block design with those by split plot design. By using graphs, we can check the possibility of reducing the sample size efficiently. Conclusion: The proposed visual methods can help an engineer to make a proper plan to reduce the sample size.

우리나라에서의 확률론적인 신뢰도와 공급예비율의 상관관계성에 관한 연구 (A study on the Characteristics of Relationship Between Probabilistic Reliability and Supply Reserve Rate in Korea Power System)

  • 박정제;정상헌;사박;오량;최재석;윤용범;정영범;차준민;윤용태
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 추계학술대회 논문집 전력기술부문
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    • pp.173-175
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    • 2007
  • This paper introduces the characteristics of relationship between probabilistic reliability (LOLE; Loss of Load Expectation) and deterministic reliability (SRR; supply reserve rate) for 2008 year in Korea power system. Korea power system has been using the LOLE criterion to determine the adequacy of installed capacity (ICAP) requirement. The criterion is that load shall not exceed the avaliable capacity, on the average, more than five day in ten years. The probabilistic reliability evaluation and production cost simulation program which is called PPHFHT was used in order to obtain the relationship in this paper.

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금속 V-벨트 CVT의 동력전달 특성과 변속비-부하토크-축력 관계 (Power Transmission Characteristics and Speed Ratio-Torque Load-Axial Force Relationship for a Metal V-Belt CVT)

  • 김광원;김현수
    • 대한기계학회논문집
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    • 제14권2호
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    • pp.349-357
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    • 1990
  • Power transmission characteristics and speed ratio-torque load-axial force relationship for a metal V-belt CVT were investigated theoretically and experimentally. In the metal V-belt CVT drive, it was found that the power was transmitted by thrust force and that band tension should be greater than compression force between the metal blocks. The experimental results for the speed ratio-torque load-axial force relationship showed good agreement with those predicted using equations developed from theoretical considerations.

노사관계에 있어서 단체 교섭력의 결정요인 - 경제적 변수를 중심으로 - (The Determinants of Collective Bargaining Power in Labor-Management Relations - Focusing on the Analysis of the Economic Variables -)

  • 백광기
    • 산학경영연구
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    • 제2권
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    • pp.141-169
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    • 1989
  • Most of the theories of collective bargaining outcomes start with a set of economic variables. The economic constraints, pressures, and incentives influence the bargaining power relationship between labor union and employer. In this paper, the critical macro and micro economic variables that need to be considered in analyzing the economic context of collective bargaining power relationship is outlined. The focus is on the role that economic forces play in shaping the results of bargaining, that is the outcome of negotiations. In this study, the elasticity of the demand for labor is introduced as one of the most important economic aspects that influence bargaining power. Unions will be most successful in increasing wages when they enjoy an inelastic demand for labor. If the demand for labor is not naturally inelastic, some institutional arrangement for "taking wages out of competition" must be sought. Inflation, business cycle, and income policy are influential in shaping both parties' goals and expectations as well. In addition to the analysis of the economic variables, the nature of power is diagonized with some introductory notions about its care and feeding before proceeding to the details of the above issues.

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근피로 유발 시 개인 성향과 음악형식에 따른 무릎 폄근의 최대수의적수축력, 일률 간 상관분석 (The Relationship between Personality, Music Type and MVIC, Power for the Knee Extensor on Inducing Muscle Fatigue)

  • 윤정규
    • 대한물리의학회지
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    • 제8권4호
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    • pp.593-600
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    • 2013
  • PURPOSE: We investigated the relationship between personality, music type and MVIC, power for the knee extensor on inducing muscle fatigue. METHODS: The subjects of this study were 22 healthy students. MVIC(Maximum Voluntary Isometric Contraction) and power in knee extension was measured by PRIMUS RS. Personality types was measured by MBTI(Myers-Briggs Type Indicator) that is an instrument designed to provide descriptive profiles of personality types and preferences. The collected data were analyzed using the independent t-test, MANOVA and Pearson-test. RESULTS: There was no significant differences both MVIC and power of the knee extensor according to personality and music type. The power was significantly increased by increasing the MVIC during a knee extension on inducing muscle fatigue without music type(r= .786~.896). There was no significant correlation both MVIC and power of the knee extensor according to personality. CONCLUSION: There was a positive correlation between power and MVIC during a knee extension on inducing muscle fatigue without music type. There was no significant correlation both MVIC and power of the knee extensor according to personality.

건강운동참여자의 자기관리, 스트레스 대처 및 신체적 자기개념의 관계 (Relationship between Self-management, Stress Coping and Physical Self-concept of Healthy Exercise Participants)

  • 편석환;유진호;김도진
    • 산업융합연구
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    • 제20권9호
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    • pp.119-129
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    • 2022
  • 본 연구는 건강운동참여자의 자기관리, 스트레스 대처 및 신체적 자기개념의 관계를 알아보고자 하였다. 이를 위해 수도권 소재의 휘트니스센터에서 건강운동프로그램을 진행하고 있는 12개 센터를 방문하여 총 274부의 설문결과를 얻었다. 이를 SPSS 프로그램을 통해 분석하여 다음과 같은 결과를 얻었다. 건강운동참여자의 자기관리와 스트레스 대처의 관계에서 유의미한 설명력을 나타냈다. 또한, 자기관리와 신체적 자기개념의 관계에서 역시 유의미한 설명력을 나타냈다. 마지막으로 스트레스 대처와 신체적 자기개념의 관계에서 유의미한 설명력을 나타냈다. 본 연구를 통해 건강운동 참여자의 자기관리, 스트레스 대처, 신체적 자기개념이 유의미한 인과관계가 있는 것으로 나타났다. 후속연구에서는 자기관리와 관련한 환경적 요인과의 인과관계를 통해 자기관리의 심층적 분석이 요구된다.