• Journal of the Korean Society of Marine Environment & Safety
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• v.27 no.6
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• pp.754-762
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• 2021

Students at Maritime University can expect to improve their understanding of the jobs they will perform in the future through long-term boarding in a one-year boarding practice that allows them to understand necessary work practices. Satisfaction with attending maritime college can also affect the job satisfaction and turnover intention of shipping industry workers after graduation. Therefore, by checking job satisfaction for each year of study, we intend to analyze and improve the curriculum or factors necessary for their future career choice. Based on previous studies, this study attempted to determine the effects of self-efficacy, teamwork, and self-leadership of maritime college students on job satisfaction through career planning, .analyze the factors that affect job satisfaction by year of study, and empirically confirm the factors students need in each year. The analysis, found that self-efficacy had the greatest influence on job satisfaction, and the effects of teamwork and self-leadership were similar in size.

• Journal of Information Technology Applications and Management
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• v.24 no.4
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• pp.93-115
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• 2017

The ability of smartphones to facilitate various services like mobile banking, e-commerce and mobile payments has made them part of consumers' lives. Conjoint analysis (CA) is a marketing research approach used to assess how consumers' preferences for products or services develop. The potential applications of CA are numerous in consumer electronics, banking and insurance services, job selection and workplace loyalty, consumer packaged goods, and travel and tourism. Choice-Based Conjoint (CBC) analysis is the most commonly used CA approach in marketing research. The purpose of this study is to utilise CBC analysis to investigate the relative importance of smartphone attributes that influence consumer smartphone preference. An experiment was designed using Sawtooth CBC Software. 326 students attempted the online survey. Utility values were derived by Hierarchical Bayes (HB) estimation and used to explain consumers' smartphone preferences. All the six attributes used for the study were found to significantly influence smartphone preference. Smartphone brand was the most important, followed by the price, camera, RAM, battery life, and storage. This study is one of the first to use Sawtooth CBC analysis to assess consumer smartphone preference based on the six attributes. We provide implications for the development of new smartphones based on attributes.

• Journal of Institute of Control, Robotics and Systems
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• v.17 no.3
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• pp.264-268
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• 2011

This paper presents a Takagi-Sugeno (T-S) type Fuzzy Logic Controller (FLC) with only 3 rules. The choice of parameters of FLC is very difficult job on design FLC. Therefore, the choice of appropriate linguistic variable is an important part of the design of fuzzy controller. However, since fuzzy controller is nonlinear, it is difficult to analyze mathematically the affection of the linguistic variable. So this choice is depend on the expert's experience and trial and error method. In this paper, we propose the method to choose the consequence linear equation's parameter of T-S type FLC. The parameters of consequence linear equations of FLC are tuned according to the system error that is the input of FLC. The full equation of T-S type FLC is presented and using this equation, the relation between output and parameters can represented. The parameters are tuned with gradient algorithm. The parameters are changed depending on output. The simulation results demonstrate the usefulness of this T-S type 3 rule fuzzy controller.

• Journal of the Korean Institute of Navigation
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• v.24 no.1
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• pp.35-45
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• 2000

Recently, in the shipping companies have been employing prudently in order to prevent from sea accidents occurred by human factors. Also the students of merchant marine universities are choosing prudently the shipping companies when taking a job. But many qualitative and quantitative factors are considered in decision making for the employment and the choice of a company. FSM(Fuzzy Structural Modeling) has been widely used in modeling the system composed of such qualitative and quantitative factor. In this paper, a case study is discussed for the analysis of the consciousness of the employment of shining companies and students' choice of such company in maritime university using FSM. Also this paper proposed the planes for educating and recruitment guiding the student in maritime university.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.7
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• pp.4404-4415
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• 2014

This study was carried out to verify the relationship between the job satisfaction and turnover intention of nurses working in general hospitals The study included 312 nurses working in three general hospitals located in Gyeoungpook area. The data was collected by a survey using self-administered questionnaires structured from February 25 to March 16, 2013. The level of turnover intention was negatively correlated with job satisfaction and professional position, autonomy, administrative capacity, pay, task requirement. In logistic regression analysis, the adjusted odds ratio of the high risk turnover intention was increased significantly in the lower groups of job satisfaction, job autonomy, administrative capacity and pay than in the higher groups of these items. Hierarchical multiple regression analysis showed that the turnover intention correlated significantly with the education level, subjective sleep evaluation, job career, job position, monthly pay, satisfaction with work, fitness of the job, career choice motives, physical burden of work, and job satisfaction. In addition, there was a negative correlation between the job satisfaction and turnover intention in the studied nurses, which showed that the turnover intention increased with decreasing level of job satisfaction. The variations in the job related characteristics and job satisfaction have a significant influence on the turnover intention.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.5
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• pp.2778-2788
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• 2014

The purpose of this study is to find out the factors that stress for getting a job and psychological well-being affect career decision efficacy of college students. In order to accomplish the purpose, survey was conducted on 447 college students in the city of I. The results were first, college students' stress for getting a job, psychological well-being, and career decision efficacy didn't have difference by the distinction of sex. Second, some significant difference was present on college students' stress for getting a job, psychological well-being, and career decision efficacy by grade levels. Third, some meaningful correlation was shown on college students' stress for getting a job, psychological well-being, and career decision efficacy. Fourth, college students' stress for getting a job and psychological well-being have a positive impact on their career decision efficacy. As seen in such results, in the course of career search and choice, stress for getting a job and psychological well-being was shown as positive variables. When college students are making a decision on their career, their career decision efficacy can be an important factor of career counseling.

• Journal of Digital Convergence
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• v.18 no.12
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• pp.1-10
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• 2020

This study examined career maturity of primary and middle school students who were interested in teaching job and compared to those who were interested in being a doctor. Using the data from the Korean Education Longitudinal Study 2013, we examined changes in the number of students (primary 5 through middle 2) who were interested in teaching as a job as well as in being a doctor. In addition, the participants' career maturity such as self-understanding, career planing, and attitudes towards job were examined and independent sample t-tests were conducted to compare two groups of students. Overall, the students who were interested in teaching showed lower level of career maturity compared to those who expected to be a doctor. Additionally, as students advanced to higher grades, the points of career maturity had been decreased regardless of which job they were interested in. Based on the findings, suggestions will be made to broaden the pool for future teachers.

• Journal of Nutrition and Health
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• v.53 no.1
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• pp.54-67
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• 2020

Purpose: This study examined the relationship between job stress, attributes of health functional food (HFF) selection, and consumption values for information technology (IT) workers, and analyzed the factors influencing the selection of HFF to improve health by making the right choice of HFFs. Methods: Three hundred forty IT workers in Gyeonggi area participated in the study. The participants were divided into low or high job stress group. The differences in participants' general characteristics, attributes of HFF selection, and HFF consumption values were investigated, and the mediating effects of HFF consumption values on the relationship between job stress levels and the HFF selection attributes were analyzed. Results: Job stress levels were high in those IT workers with a length of service < 5 years (p = 0.013). The group with lower job stress levels had a higher tendency to consider the ingredients contained in HFF products (p < 0.001), and their efficacy (p = 0.047). They also showed greater emotional value for a sense of security from consuming HFFs to stay healthy (p = 0.047). The group with higher job stress levels had greater epistemic value in that their choice of HFFs differentiated them from the other workers (p = 0.036). Higher job stress was associated with less consideration of the intrinsic attributes such as ingredients and efficacy of the HFF selection attributes (p = -0.113), emotional value of the HFF consumption values (p = -0.136), and the functional value such as practicality, price, and safety (p = -0.134). The job stress level influenced the intrinsic attributes through the functional and emotional values, demonstrating that the functional and emotional values had appropriate mediating effects on the relationship between job stress levels and intrinsic attributes. Conclusion: Education needs to be provided for workers to relieve job stress and improve the functional and emotional values, which contributes to choosing the appropriate HFFs.

• Journal of Labour Economics
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• v.35 no.1
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• pp.21-54
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• 2012

This paper investigates how technological change and the consequential occupational choices do influence the recent Korea labor market. Following Autor, Levy and Murnane (2003) and Autor, Katz and Kearney (2006), it shows that decreasing price of computer assets raises relative wages for nonroutine tasks and the self-selected occupational choices with increasing demands for computerization in routine tasks would be a main cause for the job polarization in the labor market.

• JSTS:Journal of Semiconductor Technology and Science
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• v.15 no.5
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• pp.511-518
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• 2015

As the cost-per-byte of SSDs dramatically decreases, the introduction of SSDs to Hadoop becomes an attractive choice for high performance data processing. In this paper the cost-per-performance of SSD-based Hadoop cluster (SSD-Hadoop) and HDD-based Hadoop cluster (HDD-Hadoop) are evaluated. For this, we propose a MapReduce performance model using queuing network to simulate the execution time of MapReduce job with varying cluster size. To achieve an accurate model, the execution time distribution of MapReduce job is carefully profiled. The developed model can precisely predict the execution time of MapReduce jobs with less than 7% difference for most cases. It is also found that SSD-Hadoop is 20% more cost efficient than HDD-Hadoop because SSD-Hadoop needs a smaller number of nodes than HDD-Hadoop to achieve a comparable performance, according to the results of simulation with varying the number of cluster nodes.