• 한국경영과학회지
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• 제24권3호
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• pp.73-82
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• 1999

In this paper, we address a single machine non-preemptive n-job scheduling problem to minimize the sum of earliness and tardiness with different release times and due dates. To solve the problem, we propose a genetic algorithm with new crossover and mutation operators to find the job sequencing. For the proposed genetic algorithm, the optimal pair of crossover and mutation rates is investigated. To illustrate the suitability of genetic algorithm, solutions of genetic algorithm are compared with solutions of exhaustive enumeration method in small size problems and tabu search method in large size problems. Computational results demonstrate that the proposed genetic algorithm provides the near-optimal job sequencing in the real world problem.

• 치위생과학회지
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• 제20권3호
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• pp.171-177
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• 2020

Background: Maintaining a skilled workforce by minimizing the turnover of competent dental hygienists is very important for securing dental competitiveness. Therefore, it is necessary to find a predictor of turnover and lower turnover intention. To understand dental hygienist turnover, it is necessary to study the resilience, a positive factor of personal characteristics and job embeddedness that induces residual tissue. The purpose of this study was to investigate the effect of dental hygienists' job embeddedness and resilience on turnover intention. Methods: A survey was conducted on licensed dental hygienists nationwide, from March 19 to July 19, 2020. T-test and one way ANOVA analysis were performed to compare the job embeddedness, resilience, and turnover intention according to the general characteristics. Pearson's correlation analysis was performed to identify the correlation between job embeddedness, resilience, and turnover intention. Multiple regression analysis was performed to determine the effect on the turnover intention. Results: Job embeddedness was the highest with link and resilience scoring 3.57 and 4.16, respectively. The turnover intention scored 3.53. Among the general characteristics, age, marriage, total dental clinic career, education degree, and position showed statistically significant differences in job embeddedness, resilience, and turnover intention. Suitability, link, and sacrifice of job embeddedness were shown to affect the degree of turnover intention, with an explanatory power of 26.2%. Conclusion: In order to reduce the dental hygienists' turnover intention, job embeddedness and resilience should be increased. Thus, measures should be undertaken for professional and systematic program development and human resources management.

• 수산해양기술연구
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• 제57권2호
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• pp.162-172
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• 2021

This study was conducted to determine whether the layout of wheelhouse and work environment of coastal improved stow net fishing boats affect the physical abnormalities of wheelhouse workers through a survey and to use it as basic data to improve the wheelhouse work environment. The analysis results are as follows. The result of factor analysis on the wheelhouse work environment was classified into three factors: suitability of work environment, suitability of work space arrangement, and layout of navigational and fishing equipment. The result of factor analysis on physical abnormalities was divided into two factors: physical pain and fatigue. The results of regression model analysis showing factors affecting physical pain showed that the t-value in the regression model was 3.625 (p < 0.05), indicating that the work environment suitability had an effect on the physical pain. Work environment suitability had a significantly positive effect on the physical pain. As work environment suitability increased by 1, the physical pain increased by 0.371 (p < 0.05). The results of regression model analysis showing the influencing factors on fatigue were found to have a t-value of 3.009 (p < 0.05) in the regression model, indicating that the work environment suitability had a significantly positive effect on the feeling of fatigue. It was found that fatigue increased by 0.324 (p < 0.05) as the work environment suitability increased by 1. In addition, the manageability of task suitability was found to be t = -2.521 (p > 0.05). As the manageability of task suitability increased, the skipper's fatigue level decreased. From these results, it is inferred that the wheelhouse of the current coastal improved stow net fishing boats causes physical pain and fatigue for the skippers. In order to reduce such physical pain and fatigue, and to improve safe fishing operation and job satisfaction, it is necessary to provide a wheelhouse to fishermen on coastal improved stow net fishing boats in consideration of the characteristics of the wheelhouse work of fishing boats and in consideration of users.

• 한국IT서비스학회지
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• 제19권3호
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• pp.35-56
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• 2020

The purpose of this study is to measure corporate personality by analyzing the internal employees' corporate reviews and to identify the impact of the representative corporate personality on the relationship between job satisfaction of internal employees and the turnover rate of the company. To this end, we first created a dictionary of words representing the corporate personality with a Word2vec method based on words explaining five corporate personalities, such as reliability, initiative, practicality, activism, and femininity, obtained from the preceding study. Next, we analyzed reviews which were written by internal employees on their companies to measure the score of corporate personality at a review level, aggregated the review level scores for each company to calculate the company level score of corporate personality, and assigned to each company the corporate personality with the maximum score among the five such scores. Also, job satisfaction and turnover rate were measured from internal employees' corporate evaluation scores and the percentage of former employees of each company who left a review on the company, respectively. This study collected datasets of corporate reviews, employee information, and corporate information from Job-Planet from 2014 to 2017, conducted a technical statistic check and correlation analysis to confirm the suitability of the datasets, and performed linear regression analysis to evaluate the research model and verify hypotheses. As a result of the analysis, the job satisfaction of the internal staff has a significant negative impact on the corporate's turnover rate. In addition, companies having a personality of reliability, initiative and femininity also showed a significant cause-and-effect relationship between job satisfaction and turnover rate and among them, job satisfaction of companies having a personality, initiative, showed a greater impact on turnover rate. In sum, we not only proposed a novel method of measuring corporate personality, but also showed that corporates need to identify its corporate personality and to utilize a different strategy to reduce their employee's turnover rate depending on the corporate personality.

• 한국콘텐츠학회논문지
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• 제21권6호
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• pp.336-349
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• 2021

본 연구의 목적은 장애인자립생활센터 종사자의 직무만족도에 영향을 미치는 요인을 인구학적 요인, 조직요인, 직무요인, 심리정서적 요인을 중심으로 분석하는 것이다. 이를 위해 장애인자립생활센터 108개소의 236명의 종사자들을 대상으로 서베이 조사를 실시하였으며, 센터 종사자의 직무만족도에 영향을 미치는 요인을 분석하기 위해 위계적 회귀분석을 실시하였다. 분석결과, 인구학적 요인 중에서 건강상태가, 직무요인에 해당하는 업무적합도 그리고 심리정서적 요인 중에서 자기효능감이 장애인자립생활센터 종사자의 직무만족도에 각각 유의한 영향을 미치는 것으로 나타났다. 본 연구결과들을 토대로 장애인자립생활센터 종사자의 직무만족도를 향상시킬 수 있는 구체적인 방안과 제언을 제시하였다.

• Human Ecology Research
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• 제52권2호
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• pp.141-150
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• 2014

The purpose of the present study was to determine the structural relationship among the father's participation in childcare, parenting stress, marital satisfaction, and the job satisfaction of working mothers. This study is based on the 2011 Panel Study on Korean Children, a large, population-based study conducted by the Korea Institute of Child Care and Education. The participants were 431 working mothers. To ensure the reliability and validity of the questions, descriptive statistics of the frequency, ratio, average, standard deviation, skewness, and kurtosis were obtained using SPSS 21.0. Exploratory factor, variables correlation, and reliability analysis were also performed. The structural analysis using AMOS 20.0 in the bootstrapping method was conducted to perform a path analysis among the variables and to assess the suitability of the model. A hypothetical model was proposed, which was composed of a father's participation in childcare as an exogenous variable and parenting stress, marital satisfaction, and job satisfaction of a working mother as the endogenous variables. The results of this study are as follows: First, a father's participation in childcare and the parenting stress and marital satisfaction of a working mother affect the job satisfaction of the mother. The most influential factor is marital satisfaction. Second, marital satisfaction has mediating effects between the father's participation in childcare and the parenting stress and job satisfaction of the working mother. Third, parenting stress does not affect job satisfaction.

• 문화기술의 융합
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• 제9권2호
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• pp.151-157
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• 2023

본 연구는 요양보호사를 대상으로 소명의식이 직무소진에 미치는 영향을 조사한 연구로, 총 230부를 배포하여 응답이 부실하거나 누락된 문항이 많은 설문지를 제외한 32부를 제외하고 총 198부를 분석에 사용하였다. 연구결과를 살펴보면 직무소진에 미치는 요인들 간의 상관관계는 개인환경의미, 일의의미 값들이 정적인 상관계수의 값을 가지는 것을 확인할 수 있었으며, 소명의식 하위요인이 직무소진에 미치는 영향을 살펴본 결과 개인환경적합이 유의미한 영향을 미치고 있는 것으로 나타났다. 종합적으로 요양보호사의 직무소진을 낮추기 위해서는 기관에 대한 직장생활을 할 수 있는 환경을 마련해주어야 한다. 또한 직장 내에 발생하는 문제에 대비하여 관련된 종합적인 기관 활성화가 필요할 것이다.

• 경영과학
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• 제17권1호
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• pp.41-54
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• 2000

in the real world situations that some jobs need be processed only on certain limited machines frequently occur due to the capacity restrictions of machines such as tools fixtures or material handling equipment. In this paper we consider n-job non-preemptive and m parallel machines scheduling problem having two machines group. The objective function is to minimize the sum of earliness and tardiness with different release times and due dates. The problem is formulated as a mixed integer programming problem. The problem is proved to be Np-complete. Thus a heuristic is developed to solve this problem. To illustrate its suitability and efficiency a proposed heuristic is compared with a genetic algorithm and tabu search for a large number of randomly generated test problems in ship engine assembly shop. Through the experimental results it is showed that the proposed algorithm yields good solutions efficiently.

• 대한안전경영과학회지
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• 제8권5호
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• pp.71-84
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• 2006

In order to apply job performance records to the master craftsman examination, which is an examination to screen the top-rated technician and task manager, the domestic industry has introduced job performance records to the written test of the master craftsman examination. Surveys on master craftsman's field capabilities and applicability are being conducted, and various qualification methods are being tested so as to give satisfaction to consumers in industrial fields. However, these methods have many problems in assessing task managers' qualifications. In order to solve these problems, this research intends to verify the appropriateness of introducing master craftsman's portfolios assessment and the suitability of application methods by conducting interviews and surveys. One big conglomerate and one mid-sized company that has more than 500 employees and covers from 주조(酒造:brewing) 또는 to providing various services to consumers were selected for this research.

• 한국산학기술학회논문지
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• 제13권2호
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• pp.654-659
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• 2012

본 논문은 중소기업에서 근무하는 근로자를 대상으로 직무만족도의 관계를 파악하고, 직무만족도의 관계에서 교육훈련성과가 매개하는지를 검증하여 중소기업 남성 근로자의 복지의 질을 향상하기 위한 정책적 기초자료를 제공하는 데 연구의 목적을 두었다. 중소기업 교육훈련의 하위영역인 효율성, 적합성, 우호성, 명확성과 교육훈련의 성과와 직무만족도의 하위 영역인 산업복지, 업무만족수준, 조직관리 및 후생복지, 이직태도 등과 밀접한 상관관계가 있으므로 교육훈련의 하위 변인들을 적절히 조절함으로써 업무의 효율성을 극대화 할 수 있다. 또한 논 연구는 중소기업 근로자들을 대상으로 교육훈련과 직무만족도의 관계에 있어서 교육훈련성과의 매개효과를 밝히는 데 연구의 의의가 있다. 그리고 중소기업 근로자들의 교육훈련요인과 직무만족도, 교육훈련성과의 매개를 기초로 정책적 함의 및 제언을 하였다는 데 그 의의를 찾을 수 있다.