• Journal of Practical Engineering Education
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• v.13 no.2
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• pp.369-378
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• 2021

Recently youth unemployment has long remained a nagging problem in Korea, contributing to aggravating the economy as well as the society. As an alternative solution to this problem overseas employment has been encouraged by the government who started the "K-Move" program in 2013 by integrating existing overseas employment, internship, service, and entrepreneurship support programs administered by several governmental ministries. However, employment rate of overseas job seekers was only 24.5% in 2018. This study aimed to recommend strategic directions for increasing the overseas employment rate through a questionnaire survey of the overseas employed. The factual survey results showed the following four strategic directions. First, job seekers should set clear career goals for overseas employment. Second, overseas job seekers should thoroughly prepare in advance in terms of language and related certificates. Third, IT infrastructure for offering information on overseas employment should be improved and upgraded. And, fourth, overseas employment strategies should be tailored to the specific regional or national environment. These strategic directions are expected to be of great help to overseas job seekers as well as government policymakers for formulating and implementing overseas employment support programs.

• Journal of Navigation and Port Research
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• v.47 no.1
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• pp.18-24
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• 2023

After the Great East Japan Earthquake, many reports and books that compiled testimonies of adult victims were published. Thus, refugee situations are well known, but information on the refugee situations of Japanese students is not. This is because what actions the students took and how they sought refuge from an earthquake or tsunami have not been fully recognized. The purpose of this study was to examine and analyze students' refuge behavior in the Great East Japan Earthquake and to predict the refuge behavior of students affected by future disasters. The results of the study showed that students passively acquired information about earthquakes and tsunamis and that their refuge behavior was highly dependent on adults. Immediately after an earthquake, people tended to protect themselves and stay in place until the shaking stopped. However, they tended to move to another place after the shaking occurred frequently. Students living on ria coastlines were likely to move to high places to escape the threat of earthquakes and tsunamis, whereas students living in plain regions were likely to move vertically to tall buildings, such as schools. As for the mode of movement to refugee shelters, the students arrived at the final refugee shelters in one move, and it is assumed that the refugee shelters should be decided in advance and the students should move there.

• Journal of Families and Better Life
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• v.34 no.5
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• pp.135-150
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• 2016

The purpose of this study was to examine the effects of sociotropy, as perceived by college students, and ambivalence over emotional expressiveness on their interpersonal problems. A total of 248 college students (127 males and 121 females) living in Seoul and Gyonggi responded to questionnaires, which included items related to sociotropy, ambivalence over emotional expressiveness, and interpersonal problem. First, college students' sociotropy was correlated with ambivalence over emotional expressiveness and interpersonal problems. It was suggested that people with high level of sociotropy experienced more emotional expressive conflict and interpersonal problems than people with low level of sociotropy. Second, male and female college students' ambivalence over emotional expressiveness partially mediated the relation between sociotropy and move toward other people, one of the interpersonal problem's subtypes. Male college students' ambivalence over emotional expressiveness has fully mediated the relation between sociotropy and move against other people, one of the interpersonal problem's subtypes. And female college students' ambivalence over emotional expressiveness has fully mediated the relation between sociotropy and move away from other people, one of the interpersonal problem's subtypes. According to gender difference, different interpersonal problems appeared. This study's results may provide some important suggestions for interpersonal problems in college students by increasing understanding of multiple dimensions according to their internal tendency and emotional expressiveness.

• Journal of KIISE:Computer Systems and Theory
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• v.33 no.1_2
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• pp.92-104
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• 2006

The proposed method for a force directed global placement algorithm exploits and extends techniques from two leading placers, Kraftwerk (& KraftwerkNC) and Mongrel. It combines the strengths of KraftwerkNC, force directed global placer, and Mongrel's ripple move technique which resolves cell overlaps effectively The proposed technique uses the force spreading technique used in Kraftwerk to optimize the ripple movement. While it is resolving the cell overlap and optimizing wire length physical net constraints are considered for timing. The experimental results obtained by the proposed approach shows significant improvement on wire length as well as on timing.

• Journal of the Korea Society of Computer and Information
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• v.15 no.7
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• pp.125-134
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• 2010

Importance of online community has been increased and also online community has been used as an important marketing tool. The purposes of this study are to construct an instrument to evaluate service quality of online community service and have a further discussion of the relationship between service quality dimensions, customer satisfaction, intention to move. According to our findings, among the determinants of service quality, empathy strongly influences both of consumer satisfaction and intention to move. The determinants of service quality which positively influences consumer satisfaction are empathy, tangibles and responsiveness. Empathy and assurance negatively influence intention to move. This means that the service quality of online community affects customer retention. Also, understanding and reflecting customer needs are more important.

• Korean Journal of Construction Engineering and Management
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• v.2 no.2 s.6
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• pp.47-58
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• 2001

Of all the site logistics technologies in high-rise building construction, both vertical and horizontal move plan, are the most imperative factors. And the horizontal plan follows lift-up plan as of the vertical plan. However though it may be, temporary lifts on site are numbered by heuristic formulas. The quantity of finishing material cannot be converted into lift-up load per finishing material. The lift-up plan cannot be evaluated the feasibility for finishing material move plan by a reasonable evaluation methodology. The horizontal plan is far from the vertical one. And the information as an input data for the horizontal plan is devoid of package unit size, length, and volume per finishing material. These can hardly result in reasonable and detail decision on how much to use temporary lifts, how long to use these, and where to deposit each finishing material. Therefore, this study is to suggest a decision-making model that can integrate vertical and horizontal material move plan in high-rise building construction and make a decision the plans systematically. And the study is to explain the concept, methodology, and contents of the model applied to a virtual project, named as MT 130 (Millennium Tower 130). By the model, the planner can shift his/her thinking framework on site logistics management products-oriented Into process-oriented. He/she can manage a project by the framework as system thinking, evaluate the feasibility of a lift-up plan, and decide the horizontal plan integrated with the lift-up.

• The Journal of Korea Robotics Society
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• v.17 no.2
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• pp.216-220
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• 2022

This paper proposes an inspection robot that can operate on a single square rail. Various inspection robots have been developed to identify emergency situations in industrial environments, such as those involving fires or individuals with cardiac arrest. Because the robots must operate in wide areas and long tunnels, they are designed to move along a rail installed on the ceiling. Double rail track are typically used to ensure the stability of robot movement. However, the cost for installing a double rail track is nearly two times that for a single rail track. Moreover, it is challenging to install double rail tracks while ensuring the same curvature and interval between the two rails. Therefore, in this study, an inspection robot that operate on a single square rail track is developed. To ensure stable movement in the longitudinal and lateral directions, two passive guide parts are used, and the main active wheel is allowed to move on the upper side of the square rail. The prototype was manufactured, and experiments were performed for different robot velocities.

• Korean Journal of Agricultural Science
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• v.31 no.1
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• pp.35-44
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• 2004

In this study, the automatic system exchanging well-plates was developed as a basic stage of the genome project. The developed system consisted of the plate fixing well-plates, the well-plate cassette, the head to move a well-plate from the well-plate cassette to the plate fixing well-plates before genome work or from the plate to the cassette after the work, the manipulator to move the head on the X, Y and Z axes and the control system. The performance test to exchange well-plates with the robotic system developed was carried out. The time to set an well-plate from the well-plate cassette onto the board fixing well-plates was 55 seconds and the time for 9 ones was 8 minutes and 15 seconds. It took 57 seconds to move a well-plate from the board to the cassette and 8 minutes and 33 seconds for 9 ones.

• Journal of the Korea Society for Simulation
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• v.14 no.3
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• pp.21-31
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• 2005

In state-of-the-art games, characters can move in a goal-directed manner so that they can move to the goal position without colliding obstacles. Many path-finding methods have been proposed and implemented for these characters and most of them use the A* search algorithm. When .the map is represented with a regular grid of squares or a navigation mesh, it often takes a long time for the A* to search the state space because the number of cells used In the grid or the mesh increases for higher resolution. Moreover the A* search on the grid often causes a zigzag effect, which is not optimal and realistic. In this paper we propose to use visibility graphs to improve the search time by reducing the search space and to find the optimal path. We also propose a method of taking into account the size of moving characters in the phase of planning to prevent them from colliding with obstacles as they move. Simulation results show that the proposed method performs better than the grid-based A* algorithm in terms of the search time and space and that the resulting paths are more realistic.

• The Korean Journal of Applied Statistics
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• v.17 no.2
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• pp.239-252
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• 2004

It is known that the domestic and the U.S. stock prices tend to move together as those markets are closely interrelated. In this study, cointegration and causal relationships among the four stock price indexes of KOSPI, KOSDAQ, DOWJONES and NASDAQ are carefully investigated for the period of declining stock prices in the long run. When all indexes move in a similar fashion, cointegration does not exist and the causal linkages between the domestic and the U.S. stock prices appear relatively complex. On the other hand, when the domestic and the V.S. stock prices move in a different manner, cointegration exists and the causal relationships appear relatively simple. NASDAQ is apparently found to lead the domestic stock market in both periods, which is consistent with the actual market situation when the If industry is under recession.