• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.2
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• pp.141-146
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• 2017

New infectious diseases such as MERS have been in need of many measures such as initial discovery, isolation, and crisis response. In addition, the culture of hospitals is changing, such as the general public 's visiting and Nursing Care Integration Services. However, as the qualifications and regulations of medical personnel in hospitals become rigid, overseas such as linens, wastes movements are replacing possible works with robots. we have developed a hospital logistics robot that can carry out various goods delivery within a hospital, and can move various kinds of objects safely to a desired location. In this thesis, we have studied a hospital logistics robot that can carry out various kinds of goods delivery within the hospital, and can move various kinds of objects such as waste, and linen safely to a desired location. The movement of a robot in a hospital may cause a collision between a person and an object, so that the collision must be prevented. In order to prevent collision, it is necessary to recognize whether or not an object exists in the movement path of the robot. And if there is an object, it should recognize whether it moves or not. In order to recognize human beings and objects, we recognize the person with face/body recognition technology and generate the context awareness of the object using 3D Vision image segmentation technology. We use the generated information to create a map that considers objects and person in the robot moving range. Thus, the robot can be operated safely and efficiently.

• Journal of the Korea Society of Computer and Information
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• v.25 no.12
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• pp.155-163
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• 2020

This study developed a system that can collect, manage, and utilize the travel routes of individuals who tested positive for coronavirus disease 2019 (COVID-19) based on the data standardization and quality management principles and presented the analysis data collected from the existing system. Unlike many other countries in the world, Korea demonstrated a rapid response by conducting epidemiological investigations. Further, the local governments have actively shared the travel routes of individuals who tested positive for COVID-19 to facilitate proactive prevention of the infectious disease per the Infectious Disease Control and Prevention Law. However, currently, there is no standard protocol for the local governments to share the information, thus complicating the process of sharing, managing, and utilizing the collected data. Therefore, this study developed a system that can facilitate sharing of the travel routes of individuals who tested positive for COVID-19 by establishing database construction procedures and using the travel route of COVID-19 patients as per the Disaster & Safety Information Sharing Platform and developing a data processing guideline, a data entry system with default templates, and Open API. Although this sharing system was designed to communicate the travel routes of COVID-19 patients, it can also be utilized in case of other infectious diseases. Therefore, it can be used as a response strategy for future outbreaks of infectious diseases.

• Journal of the Korea Institute of Building Construction
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• v.10 no.4
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• pp.21-29
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• 2010

International construction contractors are often faced with the situation of working in an unfamiliar construction environment. Under FIDIC rules, the contractor has the right to make a claim requesting the consulting engineer for an adjustment to the contract price or the time for completion when a part or parts of the works have changed, or in the event of unforeseeable conditions. Contractors generally have more access to the costs and time implications of such a change or unforeseeable conditions than the consulting engineer or outside neutrals. Due to such an asymmetry of information, the contractor may be motivated to dispute frivolous claims of less merit, expecting erroneous judgments by the consulting engineer or the neutrals. In this paper, a claiming behavior model is presented by using game theory and experience data to study the manner in which frivolous claims develop into disputes. The model also analyzes the impacts of DAB/DRB upon the frivolous claims.

• Journal of Korea Game Society
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• v.15 no.4
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• pp.79-92
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• 2015

The trend in the domestic MMORPG online game market is on decline because of the change in customers attitude and the advent of mobile or foreign games. The underlying cause of depressed domestic game market is that it has been failing to provide quality service arising from not revising existing game design. For this reason, this paper sets out to gather game users' opinions and to analyze successful domestic and foreign games comparatively to approve the importance and necessity of scenario development and to solve current problems in the MMORPG market. As one solution, this paper proposes a new design method, TIME FLOW scenario technique. This technique aims to establish a system in which story and environment change as time progresses and thus can provide different contents to its users over time. It is expected to enable a new frame for game design environment and to restructure education environment for human resource cultivation.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.39 no.5
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• pp.623-630
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• 2019

As the Asian region becomes strategically important in the international construction market, competition among construction firms has been more intense. While existing literature on the Asian construction market have mainly focused on qualitative approaches to market entry strategies and risk assessment, quantitative research to explain the dynamic competitive structure of the market has been rarely conducted. To address this issue, this study analyzes the structure of contract performance in the Asian region based on the data from 3,996 projects awarded to Korean construction firms from 2009 to 2017. In addition, this study applies a mathematical model using both static (market concentration) and dynamic (market mobility and instability) analyses. Consequently, the static analysis indicates that market concentration led by top-four firms tends to be increased, and on the dynamic aspect, the market position of Korean construction firms is recently weakened and fluctuated in most of the Asian regions and the construction sectors. The methodology and result of this paper would be meaningful not only to understand the underlying structure of industry-level performance but also to provide a useful reference for establishing competitive strategies towards the Asian market.

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.06a
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• pp.25-27
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• 2011

본 논문에서는 경제의 글로벌화를 반영하는 세계적인 현상인 국제회계기준 채택에 대하여 회계 관련사항을 내재하고 있는 기업의 전사적 관리 소프트웨어인 국산 ERP 시스템에 대하여 세금처리의 투명성을 향상시킬 수 있는 방법론적 모델을 해외 ERP의 장점을 통하여 연구한다. 국제회계기준은 기업요소에서 가장 중요한 자본의 국제적인 이동이 기본적 사항으로 기업의 소재지에 대한 국가표시와 관계없이 재무제표의 정보가 투명하고 비교 가능하도록 국제적으로 단일한 회계기준이 사용을 요구한다. 이러한 환경 변화에 따라 국제회계기준(International Financial Reporting Standards: IFRS)의 필요성과 중요성이 확대되어지고 있으며 국제회계기준위원회(International Accounting Standards Board: IASB)의 영향력까지 강화되어지고 있다. 본 논문은 국제회계기준에 맞춘 회계처리 부분의 투명성 향상 모델을 연구하기 위하여 국내에서 많이 사용되고 있는 국산 ERP 소프트웨어 프로그램에 대하여 국제회계기준과 상반되는 현상을 유발하는 기준이 되는 부분을 상호 보완할 수 있는 해외 ERP 소프트웨어 프로그램을 기반으로 기업 시스템을 분석, 구현한다. 국산 ERP 시스템의 국제회계기준 처리와 관련된 단점은 송장의 수정, 삭제가 용이하며 수정, 삭제 후 이력이 남지 않는 부분이다. 이 부분은 국제회계기준에서는 신뢰성에 대한 중대한 문제를 유발하므로 외산 ERP패키지의 장점인 수정과 삭제 단계가 계층적이며 수정, 삭제를 하더라도 필수적으로 이력전체가 저장되는 시스템을 연구하며 특히 세금처리 부분이 상이한 점을 보완하기 위한 모듈을 추가한다. 수정, 삭제에 대한 이력관리는 담당자의 전문적 능력평가와 동시에 실수와 오류부분에 대한 통계를 통하여 관리의 향상성을 추구하여 투명성이 향상된 모델 구축에 활용할 수 있다.

• International Area Studies Review
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• v.13 no.2
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• pp.255-276
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• 2009

This article has examined the international transmission of returns among S&P500, Nikkei225 and SENSEX stock index cash markets using the daily closing prices covered from January 4, 2002 to February 6, 2009. For this purpose we employed dynamic time series models such as the Granger causality analysis and variance decomposition analysis based on VAR model. The main empirical results are as follows; First, according to Granger causality tests we find that S&P500 stock index has a significant prediction power on the changes of SENSEX and Nikkei225 stock index market and vice versa. However, US stock market's influence is dominant to the other stock markets at a significant level statistically. Second, according to variance decomposition, SENSEX stock index is more sensitive to the movement of S&P500 than that of Nikkei225 stock index. These kinds of empirical results shows that the three stock markets are integrated over times and these results will be informative for the international investors to build the world-wide investment portfolio and risk management strategies, etc.

• The Southeast Asian review
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• v.21 no.2
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• pp.183-216
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• 2011

이 글은 잠재적 이주노동자들이 거버넌스에 중요성을 부여하는 정도가 이주의도가 없는 경우와 비교하여 어떻게 다른지를 필리핀의 자료를 이용하여 분석한 연구이다. 2011년 기준으로 전 세계 인구의 3.2퍼센트가 국제이주자이며 이들이 본국에 보내는 노동송금은 4천 4백억 달러에 달한다. 기존연구에서 파악하듯 세계인구이동의 대부분을 차지하는 노동이주의 주요 결정요인은 출신국과 이주대상국의 소득격차, 기존 이주 네트워크, 이주대상국의 이주정책 등을 포함한 경제적 요인들이다. 그러나 대규모 송출국들이 대부분 경제적 저발전과 취약한 정부(ineffective government)의 구조적인 문제를 함께 가지고 있다는 점에 착안한다면 비록 경제적 고려가 우선시 되는 노동이주에 있어서도 잠재적 이주자들이 "정치적" 으로 여타의 사회와 구분되는 특수한 정치적 태도를 가질 수 있다고 생각할 수 있다. 이주자들의 정치적 태도를 올바르게 이해하는 것은 노동이주가 송출국에 미치는 정치적 영향을 분석하는 데 있어 매우 중요하다. 해당 이주자들의 부재와 이들이 본국으로 보내는 노동송금이 송출국 정치에 영향을 미칠 수 있는데 그 영향의 방향은 이주자의 기본적인 정치적 관심과 의제에 따라 달라질 것이기 때문이다. 이러한 배경에서 이 글은 다음과 같은 연구 질문에 답하고자 한다. 첫째, 이주노동의사가 있는 시민들이 취약한 정부능력에 대한 염려가 그렇지 않은 경우보다 높은가? 둘째, 이러한 관계가 성립된다면 그 관계는 민주주의에 대한 지지를 저해하는가? 이 연구는 2002년과 2003년 필리핀에서 실시된 전국적 설문조사인 Social Weather Survey 자료와 2008년 및 2009 년 필리핀 현지조사에서 수집한 인터뷰와 2차 자료를 근거로, 정부능력에 대한 평가와 이주노동의사의 관계를 분석하였다. 연구결과, 기존 연구가 제시하는 통제변인들을 감안하더라도 효과적인 정부운영이 필리핀이 당면한 가장 중요한 과제라고 생각할수록 해외로 취업할 것을 고려할 가능성이 높은 것으로 나타났다. 또한 다행히도 이러한 태도가 민주주의에 대한 원칙적인 지지에는 영향을 미치지 않는 것으로 드러났다. 그러나 효과적인 정부에 대한 관심이 이주노동을 고려하는 시민들에게 높다는 사실은 장기적으로 이들이 해외로 이주할 경우 정부개혁을 요구하고 추진할 국내적 정치적 기반이 줄어들 수 있다는 부정적 함의를 가지기도 한다.

• Journal of the Korea Institute of Construction Safety
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• v.3 no.1
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• pp.25-31
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• 2020

While the disaster rate in all industries has been on a steady decline over the past decade, the accident rate in the construction industry has been on the rise, and it is urgent to improve it. The purpose of this study is to compare and analyze domestic design safety review system with overseas cases to derive problems of domestic design for safety review system and find ways to improve it. Like U.K and Singapore, it should be reviewed from the beginning of the working design, and Safety reviews should be conducted not only in large-scale construction but also in small-scale construction to reduce construction industry disasters. In particular, it is necessary to prepare a system for the lack of related systems, and the Design for safety system is meaningful in that it is an expansion of the spectrum from operator-centered safety management system and requires sufficient improvement and research in the future.

• Korea Trade Review
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• v.42 no.6
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• pp.51-67
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• 2017

This study analyzes the relationship between globalization and income inequality. The empirical model is developed based on Kuznets' hypothesis of the inverse U curve. The effects of factor abundancy and globalization which is characterized by trade and FDI on income inequality are analyzed. 127 member countries of WTO are classified into 4 groups according to GNI. The period of analysis is 21 years from 1995 to 2015. Results show that 3 groups of countries excluding one group that is high income countries supports Kuznets' hypothesis which is the inverse U curve. Secondly, expansion of trade decreases income inequality of middle income countries but increases high and low income countries. Thirdly, FDI increases income inequality of middle and low income countries. Finally, the increase in capital abundancy lowers income inequality because the capital accumulation increases the productivity of labor.