• 한국염색가공학회지
• /
• 제20권2호
• /
• pp.19-28
• /
• 2008

The objective of this study was to apply the statistical technique known as design of experiments to optimize the % exhaustion variables for phthalocyanine dyeing of nylon fiber. In this study, a three-factor Central Composite Rotatable Design (CCRD) was used to establish the optimum conditions for the phthalocyanine reactive dyeing of nylon fiber. Temperature, pH and liquor ratio were considered as the variable of interest. Acidic solution with higher temperature and lower liquor ratio were found to be suitable conditions for higher % exhaustion. These three variables were used as independent variables, whose effects on % exhaustion were evaluated. Significant polynomial regression models describing the changes on % exhaustion and % fixation with respect to independent variables were established with coefficient of determination, R2, greater than 0.90. Close agreement between experimental and predicted yields was obtained. Optimum conditions were obtained using surface plots and Monte Carlo simulation techniques where maximum dyeing efficiency is achieved. The significant level of both the main effects and interaction was observed by analysis of variance (ANOVA) approach. Based on the statistical analysis, the results have provided much valuable information on the relationship between response variables and independent variables. This study demonstrates that the CCRD could be efficiently applied for the empirical modeling of % exhaustion and % fixation in dyeing. It also shows that it is an economical way of obtaining the maximum amount of information in a short period of time with least number of experiments.

• 한국염색가공학회지
• /
• 제19권2호
• /
• pp.14-23
• /
• 2007

This research article explores the use of phthalocyanine reactive dye on nylon substrate. The effect of factors such as pH, temperature, liquor ratio and alkali addition on level of dye exhaustion, fixation and total fixation efficiency. Low pH, high temperature and low liquor ratio were found to be suitable conditions for maximum % exhaustion values. The effect of sulphatoethylsulphone(SES) and vinylsulphone(VS) form of the dyes on level of dye fixation was also discussed. The optimized exhaustion (%E), fixation(%F) and total fixation efficiency were determined. Modification of the dyeing process with alkali addition displayed that dye fixation(%) increased by alkali addition. Vinylsulphone(VS) moiety of the dye was found to be superior to. maximum fixation (%F). Appropriate predictable empirical models, relatively a new approach in dyeing processes, were developed incorporating interactions effects of temperature, pH and liquor ratio for predicting % exhaustion, fixation and total fixation efficiency. The significance of the mathematical model developed was ascertained using microsoft excel regression(solver) analysis module. High correlation coefficient was obtained (R2=0.9895 for % exhaustion, R2=0.9932 for fixation, R2=0.9965 for total fixation efficiency) for the model which shows prominent prediction capacity of the model for my conditions. The predictable polynomial equations developed from tile experimental results were thoroughly analyzed by ANOVA (Analysis of Variance) statistical concepts.

• 대한간호학회지
• /
• 제49권3호
• /
• pp.286-297
• /
• 2019

Purpose: To investigate the effect of nurses' emotional labor on their turnover intention that was mediated by burnout and to examine the moderated mediation effect of authentic leadership. Methods: A total of 227 nurses working at two general hospitals in Seoul were recruited from March 21 to May 6 in 2016. Emotional labor including surface acting and deep acting; burnout factors such as emotional exhaustion and personal accomplishment; and turnover intention were assessed. The data were analyzed using SPSS 22.0 and SPSS PROCESS macro. Results: Surface acting significantly increased emotional exhaustion and reduced personal accomplishment. Deep acting significantly increased personal accomplishment. Emotional exhaustion significantly increased turnover intention. Conversely, personal accomplishment significantly reduced turnover intention. Surface acting had an indirect effect on turnover intention that was mediated by emotional exhaustion. Deep acting had an indirect effect on turnover intention that was mediated by personal accomplishment. Authentic leadership had a moderated mediation effect on the relationship between surface acting and turnover intention that was mediated by emotional exhaustion. Conclusion: The findings of this study indicate that the establishment of strong authentic leadership by head nurses would help nurses reduce their burnout and turnover intention. Conducting intervention studies would be also important to promote better work environments that would enable nurses to fortify the positive aspect of emotional labor and to reduce their burnout levels.

• 한국융합학회논문지
• /
• 제12권1호
• /
• pp.231-242
• /
• 2021

본 연구는 사이버상담자의 심리스트레스, 공감피로 및 공감만족, 소진의 관계를 파악하여 소진을 예방하고 극복하기 위한 방안을 마련하고자 실시하였다. 현재 사이버상담자로 근무하고 있는 82명을 대상으로 설문을 실시하였고, 이들 중 5명을 선택하여 심층인터뷰를 실시하였다. 연구 결과 첫째, 사이버상담 경력에 따른 심리스트레스 공감피로, 공감만족, 소진의 차이는 공감만족과 소진에서 그룹간의 차이가 나타났다. 둘째, 심리스트레스, 공감피로, 공감만족, 소진간의 상관관계는 통계적으로 유의미하게 나타났다. 셋째, 소진에 영향을 미치는 정도를 알기 위해 다중회귀분석을 실시한 결과 공감피로와 공감만족이 소진에 미치는 변수로 나타냈다. 또한 사이버상담자들이 경험과 인식에 대해 심층 인터뷰를 실시하고 분석한 결과 사이버상담자의 특성에 대한 인식, 사이버상담자가 경험한 소진인식으로 크게 2개의 주제와 함께 5개 범주, 24개의 하위범주로 다양하게 나타났다. 설문지와 심층인터뷰 결과를 바탕으로 시사점과 제한점을 논의하였다.

• 한국심리학회지 : 문화 및 사회문제
• /
• 제19권3호
• /
• pp.409-433
• /
• 2013

여가에 대한 연구는 최근 활발히 이뤄지고 있지만 여가의 심리적 과정에 대한 연구는 부족하였다. 이에 본 연구는 여가경험이 정서적 소진에 미치는 영향에 대해서 살펴보고, 일과의 심리적 분리가 두 변인 간의 관계에서 매개효과를 보이는지를 검증하였다. 다양한 직종의 근로자 215명을 대상으로 인구통계학적 변인, 여가경험, 심리적 분리, 그리고 정서적 소진을 측정하였다. 여가경험은 요인분석 결과를 바탕으로 유능감, 사회교류감, 자연교류감, 그리고 자연통제감으로 구분하였다. 연구결과, 여가경험 중 유능감이 정서적 소진에 부적인 영향을 미치는 것으로 나타났다. 그리고 일과의 심리적 분리가 여가경험의 하위 요인 중 유능감과 정서적 소진 간의 관계에서 부분매개 하는 것으로 나타났다. 정리하면 개인이 여가를 통하여 유능감을 느낄 수 있게 되면 일과의 심리적 분리가 활발히 진행되고 이에 따라 정서적 소진이 감소하는 것으로 나타났다. 이러한 연구결과를 바탕으로 개인은 유능감을 느낄 수 있는 여가계획을 통해 스트레스로 인한 소진에서 회복할 수 있도록 해야 하며 조직도 이러한 여가를 경험할 수 있도록 지원이 이뤄져야할 것이다.

• 한국염색가공학회지
• /
• 제18권4호
• /
• pp.43-48
• /
• 2006

나일론섬유에 대한 프탈로시아닌 반응성 염료의 염착거동을 관찰하기 위하여 온도 및 pH를 변화하여 이에 관한 흡착율(%) 및 고착율(%)의 변화를 관찰하였다. 또한, 염착실험과정과 관련하여 새로운 적용 방법으로 실험적 모델링 방법을 도입하여 흡착율(%) 및 고착율(%)을 예측하고, 이의 결과를 여러 온도 및 pH 조건에서의 실제실험과의 상호작용 및 효과를 확인하였다. 수학적 모델링의 타당성은 Excel 회귀분석단위를 이용하여 확인하였다. 예측 모델에 있어서 얻어진 높은 계수간의 상관관계(흡착율(%) $R^2=0.9895$, 고착율(%) $R^2=0.9932$)는 실제로 진행되지 않은 실험조건에 대한 결과에 있어서도 우수한 예측 정보를 제공할 수 있다. 그리고 실험적 결과로부터 확립된 예측가능한 다항식이 ANOVA 통계적 개념에 의해 자세하게 분석되었다.

• Asian Journal of Innovation and Policy
• /
• 제7권1호
• /
• pp.190-206
• /
• 2018

This article focuses on the legal systems and practice of intellectual property protection in Japan and China, including the relating civil litigation and administrative litigation procedures. The challenge of balancing the relationship between an invalidation trial and an invalid defense during the process of civil patent infringement litigation is a common issue to be solved in both Japan and China. In addition, it is quite usual that the IP products are being imported and exported across the borders due to the expansion of international trade. Accordingly, one of the most symbolic and difficult issues is how to balance the development of international trade and IP protection in each country. In other words, there is a practical issue regarding whether a parallel import of patented products is acceptable to a country or not. The key to determining this issue depends on the judgment of international exhaustion.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2015년도 춘계 학술논문 발표대회
• /
• pp.171-172
• /
• 2015

Recently, it is the global warming phenomenon because of the greenhouse gas exhaustion caused by and the environment problem is serious. And it is the situation where the problem of the exhaustion of resource because of the indiscriminate picking of the that is the raw material of the cement, limestone and natural aggregate are emphasized. In addition, thus the cement reduction amount of use and substitute material research is the urgent actual condition with the gas emission, which here it is generated in conducting compression molding in the building stone manufacturing process performance degradation phenomenon and fire resistance, and problem of the durability. Therefore, in this research, the waste porcelain is applied to the artificial stone and the durability property of the artificial stone according to it tries to be investigated.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2014년도 추계 학술논문 발표대회
• /
• pp.51-52
• /
• 2014

Recently, it is the global warming phenomenon because of the greenhouse gas exhaustion caused by and the environment problem is serious. And it is the situation where the problem of the exhaustion of resource because of the indiscriminate picking of the that is the raw material of the cement, limestone and natural aggregate are emphasized. In addition, thus the cement reduction amount of use and substitute material research is the urgent actual condition with the gas emission, which here it is generated in conducting compression molding in the building stone manufacturing process performance degradation phenomenon and fire resistance, and problem of the durability. Therefore, in this research, because of being the magnesia phosphate ceramics, the waste porcelain is applied and the anti-wearing character of the artificial stone according to it tries to be investigated.

• 유통과학연구
• /
• 제14권2호
• /
• pp.73-82
• /
• 2016

Purpose - Counterproductive work behavior(CWB) was typically categorized according to the behavior whether it targets other people(i.e., interpersonal CWB: I-CWB). Employing organizations(i.e., organizational CWB: O-CWB) has emerged as major concerns among researchers, managers, and the general public. An abundance of researches has informed us about the understanding for the antecedents of CWB, whereas little is known about the antecedents of CWB directed distribution service in employee's emotional labor. Therefore, the purpose of this research is to propose a research model in which surface acting enhances emotional exhaustion as an emotional labor strategy, which eventually increases counterproductive work behavior(including I-CWM and O-CWB). Research design, data, and methodology - This empirical research data were gathered from the samples of full time frontline hotel employees(including front office, call center, food/beverage, concierge, and room service) in South Korea. Six hotels were selected ranged from four to five stars, including privately owned and joint-venture properties. A convenience sampling method was used to select hotels. Full time frontline hotel employees from the six hotels were surveyed using a self-administered instrument for data collection. With the strong support of hotel managers, a total of 300 questionnaires were distributed, and 252 responses were collected indicating a response rate of 84.0%. In the process of working with the 252 samples, structural equation modeling is employed to test research hypotheses(H1: The relationship between surface acting and Interpersonal counterproductive work behavior(I-CWB) is mediated by emotional exhaustion, H2: The relationship between surface acting and organizational counterproductive work behavior(O-CWB) is mediated by emotional exhaustion). SPSS 18.0 and M-Plus 7.31 software were used for the data analysis. Descriptive statistics were used to assess the distribution of the employee profiles and correlations between factors. M-Plus 7.31 software was used to test the model fit, validity, and reliability of the factors, significance of the relationship between factors, and the effects of factors in the model. Results - To test our mediation hypotheses, we used an analytical strategy suggested by Preacher & Hayes (2008) and Shrout & Bolger (2002). This mediation approach directly tests the indirect effect between the predictor and the criterion variables through the mediator via a bootstrapping procedure. Thus, it addresses some weaknesses associated with the Sobel test. We found that surface acting was positively related to emotional exhaustion. Furthermore, emotional exhaustion was a significant predictor from the two kinds of counterproductive work behavior. In addition, surface acting was not significantly associated with the two kinds of counterproductive work behavior. These results indicated that the surface acting by frontline hotel employees was associated with higher emotional exhaustion, which is related with higher interpersonal counterproductive work behavior(I-CWB) and organizational counterproductive work behavior(O-CWB). In sum, we confirmed that the positive relationship between surface acting and the two kinds of counterproductive work behavior was fully mediated by emotional exhaustion. Conclusions - The current research broadens the conceptual work and empirical studies in counterproductive work behavior literature by representing a fundamental mechanism that how surface acting affects counterproductive work behavior.