• 한국노년학
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• 제39권4호
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• pp.679-698
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• 2019

본 연구는 노인의 평생교육 참여동기가 진로장벽에 미치는 영향을 파악하고, 이 영향에 대한 소득의 조절효과를 실증적으로 분석하는 것을 목적으로 수행되었다. 이러한 목적을 달성하기 위해 본 연구에서 확인한 구체적인 연구문제는 다음과 같다. 첫째, 노인의 평생교육 참여동기가 진로장벽에 미치는 효과는 어떠한가? 둘째, 노인의 소득이 진로장벽에 미치는 영향은 어떠한가? 셋째, 노인의 평생교육 참여동기와 진로장벽의 관계에서 소득의 조절효과는 어떠한가? 이를 위해 D시에서 평생교육프로그램에 참여하고 있는 65세 이상의 노인 187명을 대상으로 연구를 진행하였다. 연구의 결과를 위해 주요변수의 상관관계를 확인하였으며, 조절효과를 분석하기 위해 중다회귀분석을 실시하였다. 자료를 분석한 결과는 다음과 같다. 첫째, 노인의 평생교육 참여동기는 진로장벽에 부적인 영향이 있음을 확인했다. 평생교육에 참여하거나 참여한 노인은 능력을 발전시키고, 인정받음으로써 진로장벽이 감소됨을 알 수 있었다. 둘째, 노인의 소득은 진로장벽에 유의한 부적인 영향을 미치는 것으로 분석되었다. 소득이 많을수록 진로장벽의 부적 관계가 강화됨을 확인했다. 셋째, 노인의 평생교육 참여동기와 진로장벽의 관계에서 소득은 조절효과를 갖는 것으로 나타났다. 이와 같은 연구결과를 토대로 논의와 시사점을 제시하였다.

• International Journal of Advanced Culture Technology
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• 제9권3호
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• pp.271-276
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• 2021

In this paper we analyze the effect of the credit period on inventory policy under trade credit with ordering cost including a fixed cost and freight cost, where the freight cost has a quantity discount. For marketing purposes, some supplier offers credit period to his buyer to stimulate the demand for the product he produces. The delay in payments during the credit period has the effect of reducing the buyer's capital opportunity cost. It is also assumed that the buyer pays the freight cost for the order and hence, the ordering cost consists of a fixed ordering cost and a variable freight cost which depends on the order quantity. As a result, the possibilities of trade credit and discounts on freight costs are expected to play an important role in the buyer's inventory policy. Based on the economic order quantity inventory model, we analyze how the buyer can determine the optimal inventory policy and we examine the effect of the length of credit period on the buyer's inventory policy.

• Communications for Statistical Applications and Methods
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• 제19권4호
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• pp.527-536
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• 2012

In this paper we analyze the effect of circular variables such as wind direction, time and month on the ozone level. In particular, we examined the effect of wind direction by exploratory data analysis methods and provide the correlation and regression analyzes in the cases including all circular explanatory variables. In the analysis, we convert time and month variables to circular variables and analyze the effect of these variables on regression analysis; in addition, we also consider circular-circular regression. We used weather condition and air pollution data collected from Dongdaemoon district of Seoul in 2007.

• 대한기계학회논문집A
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• 제32권12호
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• pp.1153-1160
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• 2008

In this paper, the algorithm of Abaqus UMAT is introduced to analyze the shape memory alloy. The SMA has two main effects which show non-linearity. Due to this, it is hard to analyze SMA using analysis tools and to describe all of two effects. Therefore, in this study, the program using Abaqus UMAT based on Modified Brinson model is used to analyze SMA. The martensite fraction, the most important factor which defines SMA motion, is also calculated by Fortran program in UMAT. In addition, the tensile test of SMA specimen is conducted. The availability of algorithm is proved by comparing analysis to experimental result.

• 한국통신학회논문지
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• 제21권2호
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• pp.394-408
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• 1996

In this paper, we classify the transfer method of overflowed traffic from microcell to macrocell in micor/macro overlaid PCS system using CDMA technology, and analyze the traffic characteristics of traffic transfer methods. Soft-handoff is charaterized by communications with a new bastation on the same CDMA frequency assignment before terminating communications with the old basestation. Therefore, soft-handoff is superior to hard-handoff with respect to Grade Of Service, but it decreases the carried traffic of system. Therefore, we analyze the effect of soft-handoff with respect to handoff area variation. In order to analyze soft-handoff effect, we resolve the probability of dewelling time in soft-handoff area, and calculates the carried traffic of microcell using this result.

• 산업경영시스템학회지
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• 제44권3호
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• pp.230-239
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• 2021

There is a growing interest in project management knowledge, project management information systems, and process improvement to systematically project execution in public sectors, achieve high performance and value, and increase the effectiveness of the overall industry. In particular, the software industry is a knowledge-intensive industry centered on professional manpower. This study examines the effect of the project managers' competences of regional SW promotion agencies on and project performance and the moderating effect of the level of project management maturity. We collected data using a questionnaire to the project managers of regional SW promotion agencies. In this study, a structural equation model was used to analyze the relationship between project managers' competences and performance. In addition, a multi-group structural equation model was used to analyze the moderating effect according to the high and low project maturity. As a result of the analysis, it was found that only contextual competence among the competences of the project manager had a positive effect on project performance. It was found that technical and behavioral competence did not have a positive effect on management and completion performance. It was found that the moderating effect according to the maturity of business management of local institutions was not significant.

• The Journal of Asian Finance, Economics and Business
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• 제8권12호
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• pp.141-151
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• 2021

This study aims to: 1) analyze the effect of leadership style on job satisfaction and organizational commitment, 2) analyze the effect of leadership style, job satisfaction and organizational commitment on employee performance, 3) examine the indirect effect of leadership style on employee performance mediated by job satisfaction and organizational commitment. The population of this research is all employees who have structural positions totaling 95 respondents. The sample was selected using the census technique, resulting in a total of 95 respondents in the research sample. Methods of data collection was using a questionnaire. The research model is structural so that the research data is analyzed using SEM Smart PLS 2. Research results: 1) leadership style has a positive and significant effect on job satisfaction and organizational commitment, 2) leadership style, job satisfaction, and organizational commitment have a positive and significant effect on employee performance, 3) Job satisfaction and organizational commitment mediates the influence of leadership style on employee performance, and has a positive and significant effect. Indirect influence gives stronger results than direct influence. As a result, it is hoped that university leadership will use an effective leadership style and pay attention to employee work satisfaction and commitment to boost employee performance.

• 보건행정학회지
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• 제31권4호
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• pp.531-543
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• 2021

Background: Population aging is a serious problem in Korea. And we have experienced a rapid increase in the health expenditures of the elderly. The purpose of this paper is to analyze the effect of having a usual source of care (USC) for the elderly. Methods: This study used the Korea Health Panel Survey data of 2012, 2013, 2016, 2017, and 2018. The sample was the person who answered the USC questions among the elderly. The panel logit model was used to analyze the determinants of having USC and the panel simultaneous equation model was used to analyze the effect of having USC among the elderly on the medical expenses, medical utilization, and subjective health status. Results: The estimation result shows that age, income, marriage, and so forth turn out to be the factors of having USC. Having the clinic level USC is estimated to reduce the health care utilization and the health expenditure and to improve the subjective health status. Conclusion: It is expected that the result of our analysis will provide evidence for encouraging having USC.

• The Journal of Asian Finance, Economics and Business
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• 제8권1호
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• pp.507-517
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• 2021

The research objective was to analyze the effect of work behavior on organizational citizenship behavior (OCB) and organizational commitment. For this, we analyze the effect of organizational commitment on OCB and analyze organizational commitment as a mediating variable in the relationship between workplace behavior and OCB. This study employed survey data for 80 employees of 12 village credit institutions in the Badung Regency. Observation is one way to obtain primary data. It is done by observing the object, which is the primary source of data, and conducting direct observations of the research location to determine the circumstances and problems. This research uses data collection techniques: 1) interviews conducted with employees working in Badung Regency both in managers and staff positions. 2) Questionnaire, namely, by using several closed questions given to the Badung Regency employees regarding workplace spirituality, organizational commitment, and OCB. The analysis technique used the partial least squares (PLS) approach and the Sobel test. The results show that workplace spirituality does not affect OCB but positively affects organizational commitment. Also, organizational commitment has a positive effect on OCB. The major findings are organizational commitment acts as a mediating variable in the relationship between workplace spirituality and OCB.

• 농촌계획
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• 제24권3호
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• pp.55-62
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• 2018

This study analyze factors influencing business performance by types of agricultural corporation for improving performance. The number of agricultural corporations have been increasing but their profitability has been decreasing. In this situation, it is important to analyze factors influencing business performance for improving their profitability. We estimate a model including financial indexes and corporation's characters using ordinary least square. We use agricultural corporations survey data for 10years(2005~2014) of Statistics Korea. This study analyze bookkeeping recorded agricultural corporations for the same period. As a result, we find factors to influence Return on Assets(ROA). Additionally, we calculate optimized current ratio and debt ratio for ROA maximization. Operation period and the number of full-time workers also have a positive effect on ROA. Agricultural production, processing and distribution variables by business types have a positive effect on ROA, but some of their interaction terms have a negative effect on ROA. We expect that this result will help for improving corporation's business performance.