• The Journal of Korean Institute for Practical Engineering Education
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• v.2 no.1
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• pp.89-94
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• 2010

This paper proposes an educational robot game framework for novice students in k-12 to learn concepts of programming through interesting experiences. It is designed to be able to enjoy robot games without technical knowledge of robotics and programming. For this, in the proposed robot game framework, educational robots based on line-tracer are used and the programming APls that can be used for various educational programming languages are offered. And the proposed robot game framework also offers a game board to create several games with easy operations. Additionally, through experiments, it shows that novice students are able to create different games that have several game solutions for various programming using this robot game framework.

• The KIPS Transactions:PartD
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• v.10D no.2
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• pp.187-194
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• 2003

Main Memory storage system can increase the performance of the system by assigning enough slack time to real-time transactions. Due to its high response time of main memory devices, main memory resident data management systems have been used for location management of personal mobile clients to cope with urgent location related operations. In this paper we have developed a multi-threaded main memory storage system as a core component of real-time retrieval system to handle a huge amount of readers and writers of main memory resident data. The storage system is implemented as an embedded component which is working with the help of a disk resident database system. It uses multi-threaded executions and utilizes latches for its concurrency control rather than complex locking method. It only saves most recent data on main memory and data synchronization is done only when disk resident database asks for update transactions. The system controls the number of read threads and update threads to guarantee the minimum requirements of real-time retrievals.

• Journal of the Economic Geographical Society of Korea
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• v.16 no.2
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• pp.233-246
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• 2013

This paper investigates both the spatial patterns of aging population and its formal regional structure in 2010. The results are as follows: first, aging index shows high values in remote mountainous and coastal regions while showing relatively low values in Capital Region and large provincial cities. Aging index has low negative correlation with such variables as population increasing rate, ratio of youth population, ratio of apartments, and ratio of newly built housing. However, aging index shows high positive correlation with variables including ratio of single unit house, ratio of aged peoples' house ownerships, ratio of welfare recipients, ratio of old housing, and number of public healthcare facilities. Secondly, four factors are identified from factor analysis including aging factor, welfare factor, economic vitality factor, and new town factor. The aging level of a region is negatively related to the strong level of those factors. Thirdly, cluster analysis results in four different types of formal regions including rural mountainous coastal type, rural non-capital region type, large metropolitan type, and provincial industrial city type.

• Journal of the Korean School Mathematics Society
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• v.9 no.1
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• pp.19-40
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• 2006

There are various efforts to alleviate problems about the learning disabilities each year, however, the number of the learning disabilities has been increasing. Therefore, we need to consider and develop practical methods to help them. In this aspect, we review and examine previous research regarding the learning disabilities which are known to be general and comprehensive. Then we suggest math clinic as one of the methods to alleviate the problem. There are purposes of the math clinic. The first is to make a comprehensive diagnosis for basic (emotional, environmental, psychological) reasons as well as the learning anxiety; not only the lower achievement in learning. The second is to provide them suitable corrective programs which would help them to gain a better understanding about mathematics and a positive learning attitude. The third is to provide them applicabilities in their learning and potentialities so that we have given them foundation in mathematics. In this article, we operate math clinic for the learning disabilities, and then make an analysis of the student's error occurred in learning, and finally we suggest a demonstrative operating program of math clinic for learning disabilities.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.22 no.2
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• pp.281-286
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• 2013

As the product lifecycle is getting shorter and various models should be released to respond to the needs of customers and markets, automation-based flexible production line has been recognized as the core competitiveness. According to these trends, system vendors supply cell-level systems such as FMC(Flexible Manufacturing Cell) that is integration of core functions of FMS(Flexible Manufacturing System) and RMC(Reconfigurable Manufacturing Cell) that can easily extend components of FMC. In the cell-based environment, flexible management for shop floor composed of existing job shop, FMCs and RMCs from various system vendors has emerged as an important issue. However, there could be some problems on integrated operation between heterogeneous cells to use vendor-specific cell controllers and on seamless information flow with high level systems such as ERP(Enterprise Resource Planning). In this context, this paper proposes process management systems supporting integrated shop operation of heterogeneous multi-cell based flexible manufacturing environment: First of all, (1) Integrated Shop Operation System to apply the process management system is introduced, and (2) Multi-Layer BOP(Bill-Of-Process) model, a backbone of the process management system, is derived with its data structure. Finally, application of the proposed model is illustrated through system implementation results.

• Journal of Korean Society for Geospatial Information Science
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• v.14 no.4 s.38
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• pp.45-51
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• 2006

Recently the coast is an important area in terms of spatial land use and natural environment conservation such as the expansion of a national land and the development of a coastal industrial zone in Korea. We can not provide a proper solution for a boundary determination raised by a land ownership dispute due to the insufficient coast land registration. We observed the status of the coast land registration and analyzed the problem through the investigation of the difference between a land title and a coast land in the study area. We selected the west coast with the big difference between the ebb and flow of the tide as the study area from a paper review, compared a cadastral line with a coast line and suggested a good guideline to solve the problem through understanding the status of the coast land title registration in Korea.

• Journal of Korean Society for Geospatial Information Science
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• v.13 no.4 s.34
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• pp.39-46
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• 2005

This paper use virtual running after possible traffic capacity application for optimal route location. General road is designed the design after we examine an alternate adequacy investigation and an execution design sufficiently. Various road user's requirement must be reflected from the beginning. But it is difficult to contain the various suitable design criteria because we consider the existing 2-dimension element. First of all, this study chose optimal route, used traffic assignment and 3D simulation. Then selected optimal route through the consistent road construction by analyzing road driving simulation of 3-dimension data and the urban landscape. possible traffic capacity and virtual running will be able to do the urban landscape analysis harmonizing with the environment; equally, it could be objectively solve the problem of a civil appeal.

• The Journal of the Korea Contents Association
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• v.11 no.9
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• pp.496-505
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• 2011

The purpose of this study was to research the relationships among ethical climate, trust, organizational identification and turnover intention of employees in travel agency. Ethical climates the prevailing perceptions of typical organizational practices and procedures that have ethical content. Ethical climate involves the perceptions of rightness or wrongness present in the organization's work environment, and establishes the norms for acceptable and unacceptable behavior within the company. To accomplish this study, it was determined that the analysis derived from a hypothesis and literature reviews and data collected from 231 employees in travel agency. The results of empirical analysis showed as follows. First, Perceived ethical climate has a significant effect on trust, organizational identification and turnover intention. Second, Organizational identification has a significant effect on turnover intention while trust has no relationship with it. In addition, the mediating role of organizational identification is examined in the relationship between ethical climate and turnover intention. Based on these findings, the implications and limitations of the study were presented including some directions for future studies.

• The Journal of the Korea Contents Association
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• v.10 no.2
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• pp.165-175
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• 2010

This paper claims the argument that the taste of own is not the intrinsic value but is determined by the environment or habitus, based on Bourdieu's theory. This concept of taste leads up to a natural stream of imitation and alignment. We conclude that the stream is the fashion which be justified by the major agreement. But the nature of fashion exists in hegemony and determines a sense of kinship or a point of difference. In this regard, popular cultures as a window circulated fashion have a negative consequence that can be method of discriminating the minority and justifying vested rights. Accordingly, we have to become wary of the strategy of control using fashion and popular cultures, and need to recognize the prior paradigm about fashion. In the process, we can expect that fandom or counter cultures based on digital high technology constitute subjectivity and dynamics of popular by interaction between the objects.

• The Journal of the Korea Contents Association
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• v.10 no.11
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• pp.424-434
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• 2010

Job stress of Korean workers is 87.8% which is the highest level among OECD countries(average 80%), and job satisfaction is 69% which is the lowest satisfaction much lower than the average(81) of OECD. This study aims to analyze the effect of LMX; Leader-Member Exchange regarding job stress and job satisfaction empirically. According to the result of the study of employees in special hotels in capital areas and Jeolla province, the difference between job stress and intensity showed partial differences in marital status. In addition, the mediating roles of the LMX quality showed that the only organization-related stress consisting of role conflicts and role ambiguity factors was found to be mediated by the quality of LMX in terms of the effect on job satisfaction. Also, the effect of job authority-related stress and job environment stress on job satisfaction showed that the quality of LMX didn't have an influence.