• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.63-72
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• 2017

This paper proposes a procedure to improve the operational efficiency of the automotive parts manufacturing process by applying classical IE techniques composed of process analysis, work method analysis, and motion analysis, and a specific application case is outlined. The proposed procedure was developed originally by the Task Force organized in L company's automotive parts manufacturing business unit. The balance efficiency and production capacity were used as measures of operational efficiency. The developed procedure follows the general procedure of analyzing the phenomenon at the manufacturing shop, deriving an improvement solution to solve the problem, evaluating each derived alternative, and implementing it to the field to achieve productivity improvement. Among the methods used in each phase of the procedure, function analysis used in the waste discovery phase and R&R evaluation method used in the alternative assessment phase are unique techniques developed by L company's TF. The R&R Evaluation method techniques are described in detail because this method is highly applicable and extensible. A case of applying developed procedures to improve the EPS motor manufacturing process is discussed. As a result, the line balance efficiency and production capacity were increased to a satisfactory level.

• 대한공업교육학회지
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• v.34 no.1
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• pp.196-209
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• 2009

The purpose of this study was to analyze engineering basic competencies about the time completed a course and educational needs of engineering college graduates. Survey method using questionnaire was the major research method of this study. A survey of 807 engineering college graduates was carried out. Questionnaire were made of the level of engineering basic competencies of engineering college graduates, its priorities of actual vocation and level of engineering basic competencies of major. Major results of the study, some recommendations for future researches were made as follows: The level of engineering basic competencies of engineering college graduates was 3.3 average(5 full marks). Engineering basic competencies that educational needs were high respectively, were an ability to communicate effectively, an ability to design a system, component, or process to meet desired needs, an ability to function on multi-disciplinary teams, an ability to understand global culture and cooperate internationally, an ability to design and conduct experiment as well as to analyze and interpret data, and an ability to engage in life-long learning.

• KDI Journal of Economic Policy
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• v.20 no.1_2
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• pp.3-77
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• 1998

경제위기 극복의 핵심과제는 '시장기구의 원활한 작동에 의존하는 경제의 틀'을 마련하는 것이며, 이를 위해서는 경제적 시장경제체제를 구축해야 한다. 이러한 견지에서 공정거래법 정책의 위상, 역할, 과제, 방향 등을 새로이 정립할 필요가 있다. 공정거래법 정책의 기초개념이 되어온 경제력(집중)과 경쟁의(불)공정성은 지나치게 포괄적이고 주관적이며 이에 대한 분석의 틀이 되는 이론체계도 없어 정책의 개념적 기반이 되기 어렵다. 공정거래법 정책은 독점력과 효율성의 개념 위에서 경제효율 증진이라는 목적을 추구해야만 정책의 일관성과 실효성을 높일 수 있다. 이는 대기업들의 독점력이 경제력집중 및 재벌구조와 형태상 제 문제의 근원(根源)이며, 독점력은 경제이론에 의해 정책방향과 기준이 제시되는 개념이기 때문이다. 공정거래법 정책은 시장구조와 형태를 실질적으로 경쟁화함으로써 경제효율을 극대화하는 데 주력해야 한다. 무엇보다도 경쟁 제한적 법령 제도 관행을 철폐하기 위한 규제개혁을 주도하고 경제구조조정과 재벌개혁의 기본원칙과 방법이 시장기능과 경쟁을 강화하는 방향으로 설정 시행되도록 하는 것이 긴요하다. 특히 대기업간 사업교환이나 인수 합병에 대하여 엄격한 경쟁정책적 검토와 규율을 적용해야 하며, 시장의 독과점화를 방지하면서 구조조정을 촉진하는 방향으로 기업결합 규제기준을 개선해나가야 할 것이다. 가격담합 등에 대한 당연위법 원칙의 확립, 입찰조작의 감시 적발체제 구축 등 카르텔 규제를 강화하고, 유통조직 활동의 효율화를 도모하면서 독점유지 강화행위를 엄격히 금지하여 다양한 유통경로와 업태가 출현 발전하도록 해야 한다. 산업조직적 조사 분석능력을 확충하여 경쟁정책적 시각에서 주요 사건을 선별 조사하고 법집행에 있어 사소(私訴)의 역할을 확대하기 위한 노력도 필요하다.

• Journal of the Korean Institute of Gas
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• v.7 no.3 s.20
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• pp.24-31
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• 2003

To operate process plant safely and economically, process monitoring is very important. There are a great number of data acquired through distributed control system and process information system. Fault monitoring is the task with difficulties owing to not only the huge amount of data, but also nonlinearity of chemical processes. In this research, the program, REFA, based on PCA and functional link associative neural network has developed. REFA has better learning capabilities, generalization abilities, and shorter learning time than existing neural network programs. In this work its usefulness has proven by application to Tennessee Eastman process.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2000.11a
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• pp.390-395
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• 2000

화학공정에서 발생하는 사고의 주요 원인으로는 조업자의 실수, 장치고장, 안전장치의 미비, 운전조건의 이상을 들 수 있다. 화학공정의 위험 분석은 HAZOP, FTA, ETA, 및 CA 등이 산업계에서 가장 유용하고 폭넓게 사용되고 있는 분석 방법이다. 이들 위험분석 기법 중에서 FTA(Fault Tree Analysis)는 사고의 세부적인 원인목록을 작성하여 해당사고의 구조를 파악할 수 있으며 복잡한 시스템내의 결함을 최소시간과 최소비용으로 효과적으로 예방할 수 있게 하는 정량적 위험성 평가 방법이다. 일반적으로 이 방법들은 전문가 집단에 의해 수행되기 때문에 전문가 집단의 능력과 투여되는 시간에 많이 비례하여 왔던 것이 사실이다. 이러한 이유로 인하여 위험분석방법의 자동화가 절실히 대두되고 있는 실정이다.(중략)

• The Journal of the Korea Contents Association
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• v.13 no.2
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• pp.244-253
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• 2013

This research explores the impacts on the recognition of organizational justice for public employees organizational citizenship behavior during the public-sector reformation. Research results are summarized as follows. The first, the job satisfaction and organizational citizenship behavior of public employees relate with procedural justice, interactional justice. but distributive justice not impact. The second interactional justice relations impact organizational citizenship behavior. The third, job satisfaction does the intermediate role between the organizational justice and organizational citizenship behavior of public employees. These result contribute to the explanation of how public employees organizational citizenship behavior work in the public sector reform process.

• Progress in Medical Physics
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• v.25 no.3
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• pp.185-192
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• 2014

The purpose of this study is to evaluate the results for the quality assurance through a statistical analysis on the output characteristics of linear accelerators belonging to Yeungnam University Medical Center by using the Shewhart-type chart, Exponentially weighted moving average chart (EWMA) chart, and process capability indices $C_p$ and $C_{pk}$. To achieve this, we used the output values measured using respective treatment devices (21EX, 21EX-S, and Novalis Tx) by medical physicists every month from September, 2012 to April, 2014. The output characteristics of treatment devices followed the IAEA TRS-398 guidelines, and the measurements included photon beams of 6 MV, 10 MV, and 15 MV and electron beams of 4 MeV, 6 MeV, 9 MeV, 12 MeV, 16MeV, and 20 MeV. The statistical analysis was done for the output characteristics measured, and was corrected every month. The width of control limit of weighting factors and measurement values were calculated as ${\lambda}=0.10$ and L=2.703, respectively; and the process capability indices $C_p$ and $C_{pk}$ were greater than or equal to 1 for all energies of the linear accelerators (21EX, 21EX-S, and Novalis Tx). Measured values of output doses with drastic and minor changes were found through the Shewhart-type chart and EWMA chart, respectively. The process capability indices $C_p$ and $C_{pk}$ of the treatment devices in our institution were, respectively, 2.384 and 2.136 for 21EX, 1.917 and 1.682 for 21EX-S, and 2.895 and 2.473 for Novalis Tx, proving that Novalis Tx has the most stable and accurate output characteristics.

• Journal of The Korean Association of Information Education
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• v.15 no.3
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• pp.505-515
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• 2011

Since MEST accredited web-based training institutes for teacher training in December 2000, although there have been growth quantitatively, due to the issues such as difficulty in securing time for training, in communications infrastructure, in interactions between instructors and learners, in fair online evaluation, in contents renewal, in management of learners, web-based training could not reach the potential we expected. This study was conducted to provide the directions for development of teachers' web-based training along with teacher evaluation for professional development. A survey and interview research was conducted to investigate and anaylze the satisfaction research and suggestions, levels of training system use of trainees who had participated in the pilot test of web-based training.

• KSBB Journal
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• v.21 no.1 s.96
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• pp.59-67
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• 2006

2D spectrofluorometer produces many spectral data during fermentation processes. The fluorescence spectra are analyzed using chemometric methods such as principal component analysis (PCA), principal component regression (PCR) and partial least square regression (PLS). Analysis of the spectral data by PCA results in scores and loadings that are visualized in score-loading plots and used to monitor a few fermentation processes by S. cerevisae and recombinant E. coli. Two chemometric models were established to analyze the correlation between fluorescence spectra and process variables using PCR and PLS, and PLS was found to show slightly better calibration and prediction performance than PCR.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.12
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• pp.1880-1892
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• 2010

The purposes of this study were to: a) provide evidence concerning the effects of emotional intelligence on job outcomes, b) examine the impacts of emotional intelligence on employee-related variables such as 'job satisfaction', 'organizational commitment', 'organizational performance', and 'turnover intention' c) identify the conceptual framework underlying emotional intelligence. A survey was conducted to collect data from foodservice managers (N=231). Statistical analyses were completed using SPSS Win (16.0) for descriptive analysis, reliability analysis, factor analysis, t-test, correlation analysis, cluster analysis and AMOS (16.0) for confirmatory factor analysis and structural equation modeling. The concept of emotional intelligence (EI) has been on the radar screens of many leaders and managers over the last several decades. The emotional intelligence is generally accepted to be a combination of emotional and interpersonal competencies that influence behavior, thinking and interaction with others. The main results of this study were as follows. The four EI (Emotional Intelligence) dimensions correlated significantly with age. The means of job satisfaction score were above the midpoint (3.04 point) scale. The organizational commitment score was above the midpoint (3.41 point) scale and was higher at 'loyalty' factor than 'commitment' factor. The means of organizational performance score were above the midpoint (3.34) scale. The correlations among the four EI (emotional intelligence) factors were significant with job satisfaction; organizational commitment, organizational performance and turnover intention. The test of hypothesis using structural equation modeling found that emotional intelligence produced positive effects on job attitude and job performance. Emotional intelligence enhanced organizational commitment, and in turn, managers' attitude produced positive effects on organizational performance; emotional intelligence also had a direct impact on organizational performance. This study has identified the effect of emotional intelligence on organizational performance and attitudes toward one's job.