• Review of KIISC
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• v.27 no.2
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• pp.22-28
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• 2017

본 논문에서는 교통신호제어기 표준규격(NPA-TSC-2010 R14)과 호환성을 유지하면서, 교통신호제어시스템과 상용 LTE 이동통신망을 적용 가능한 검증필암호모듈 기반의 SSL VPN을 개발하여, 정보보안의 성능과 교통신호제어기의 통신성능을 만족할 수 있다는 결과를 제시한다. 또한 '교통신호제어기 표준규격'의 기기 변경이 최소화될 수 있도록 SSL VPN 개발에 필요한 기술을 구현하여 실증결과를 제시함으로써, 이를 바탕으로 교통신호제어 시스템의 보안 표준규격으로 제정될 수 있도록 기술 및 절차적 결과를 제시하였다.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 1996.04b
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• pp.41-44
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• 1996

고하중, 저속에서의 마찰마모특징을 나타내는 건설기계의 작업장치 연결부의 핀/부싱 조인트의 개발 적용성 검토를 위해 기존의 사용방법인 표면경화처리 후 그리이스 급유하는 경우와 ESA(전기방전코팅)처리후 고체윤활제를 도포한 경우의 마찰마모특징을 시험 분석하여 기존 방법보다 ESA처리후 고체윤활제를 도포하는 경우의 마찰마모 특성이 매우 우수한 적을 확인하였다.

• Proceedings of the Korean DIstribution Association Conference
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• 2005.11a
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• pp.463-485
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• 2005

2000년대 이후 영구 지방 정책의 목표는 지역의 ‘균형 발전’과 ‘지속 가능 발전’을 촉진하는 것이다. 최근 영국에서는 미국에서 도입된 BID 제도가 정부의 적절한 지원과 개발 주체들의 협업의 성공으로 영국 전역에 급속히 퍼지고 있다. 성공사례를 분석한 결과 다양한 프로젝트 참여자들의 이해관계와 참여를 조정하는 ‘프로젝트 매니저’의 역량이 가장 중요하며 영국 TCM과 BID 제도의 핵심은 지역 마케팅(place marketing)이자 지역 브랜딩 (place branding)임을 알 수 있었다. 한국의 경우 영국형 TCM과 BID가 도입되기 위해서는 정보의 섬세한 마스터 플랜과 프로젝트 ‘종합성과평가’(CPA)가 먼저 준비되어야 하며 동시에 지역 마케팅에 대한 이해와 인식을 지금보다 획기적으로 제고 시켜야 한다.

• Journal of the Korean Institute of Landscape Architecture
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• v.48 no.1
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• pp.35-45
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• 2020

This study focused on the park as a space to support the behavior of urban citizens in modern society. Modern city parks are not spaces that play a specific role but are used by many people, so their function and meaning may change depending on the user's behavior. In addition, current online data may determine the selection of parks to visit or the usage of parks. Therefore, this study analyzed the change of behavior in Yeouido Park, Yeouido Hangang Park, and Yangjae Citizen's Forest from 2000 to 2018 by utilizing a time series analysis. The analysis method used Big Data techniques such as text mining and social network analysis. The summary of the study is as follows. The usage behavior of Yeouido Park has changed over time to "Ride" (Dynamic Behavior) for the first period (I), "Take" (Information Communication Service Behavior) for the second period (II), "See" (Communicative Behavior) for the third period (III), and "Eat" (Energy Source Behavior) for the fourth period (IV). In the case of Yangjae Citizens' Forest, the usage behavior has changed over time to "Walk" (Dynamic Behavior) for the first, second, and third periods (I), (II), (III) and "Play" (Dynamic Behavior) for the fourth period (IV). Looking at the factors affecting behavior, Yeouido Park was had various factors related to sports, leisure, culture, art, and spare time compared to Yangjae Citizens' Forest. The differences in Yangjae Citizens' Forest that affected its main usage behavior were various elements of natural resources. Second, the behavior of the target areas was found to be focused on certain main behaviors over time and played a role in selecting or limiting future behaviors. These results indicate that the space and facilities of the target areas had not been utilized evenly, as various behaviors have not occurred, however, a certain main behavior has appeared in the target areas. This study has great significance in that it analyzes the usage of urban parks using Big Data techniques, and determined that urban parks are transformed into play spaces where consumption progressed beyond the role of rest and walking. The behavior occurring in modern urban parks is changing in quantity and content. Therefore, through various types of discussions based on the results of the behavior collected through Big Data, we can better understand how citizens are using city parks. This study found that the behavior associated with static behavior in both parks had a great impact on other behaviors.

• Korean Journal of Construction Engineering and Management
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• v.19 no.2
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• pp.3-14
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• 2018

The system to appraise the execution capabilities of construction companies had been began as the Construction Contract Restriction System in 1958, was changed as the Construction Subcontract Restriction System in 1961, and finally has been operated as the Appraisal and Public Announcement of Execution Capacity (APAEC) from 1996. The APAEC system has been utilized as a firm and unique tool for assessing the execution capacities of construction companies despite many problems and continuous system changes. In spite of numerous studies to improve the APAEC system, however, efforts to analyze the system from the empirical point of view were insufficient. In this study, we analyze the status of APAEC system through analyzing correlations among assessment results of the APAEC, earned values of construction works, construction management performance indexes, and macroeconomic indexes for the past 10 years from 2007 to 2016. As a result of the analysis, it was found that Appraisal Value of Execution Capacity (AVEC) is excessively inflated in engineering and landscaping areas compared to Earned Value of Construction Work (EVCW) and the correlations between the AVECs and EVECs are not high in the areas of engineering, industrial equipment, and landscaping. In addition, technical appraisal values are excessively inflated in engineering and landscaping areas and correlations between AVEC and its components are high in the areas of engineering & building, industrial equipment, and large companies, but low in the areas of engineering, building, landscaping, and small and medium companies. Finally, the concentration of the AVEC is intensifying more and more and the concentration deteriorates construction management performance indexes and macroeconomic indexes. If we continuously improve the APAEC system based on the implications derived in this study, the APAEC system will be able to maintain it's position of a firm and unique means to access the execution capacities of construction companies.

• Journal of National Security and Military Science
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• s.9
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• pp.207-240
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• 2011

There are many information assurance schemes(i.e., evaluation criteria and methodology) for security assurance of information systems, since the security is one of the most important characteristics in the modem information systems. However, there are confusions among schemes and redundancies of assurance. In this paper, we survey and classify conventional information assurance schemes by view points of assurance targets, life-cycles and nations. We propose three new information assurance schemes as the result of survey. Those are as follows: the schemes of the assurance on the requirement itself which is evaluated and certificated after standardizing the security requirements about the organizations and the applications, on the developing information system, and on the accreditation and certification about new information system. This will be helpful to set up a security assurance of National Defense.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.632-637
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• 2006

Our country's bidding system had made the lowest price successful bid system in foundation before introducing eligibility review system at July, 1995, and a averaged- price successful bid system or the restrictive-lowest price successful bid system had been enforced by repletion. However, they were introduced as dumping that do not reach in direct cost level of construction cost is generalized and worry about illegal construction practices rises by the lowest price successful bid system. According as they had not been promoted construction company's technical development effort or cost reduction effort, vicious circle that advocate competition principle again and recur as the lowest price successful bid system is repeated last 50 years. Therefore, I present improvement direction that can satisfy all Global Standard and real condition of our country through foreign countries example analysis to cope with the rapidly changing building circumstances socially and economically to correspond actively to the construction industry's reorganization to reconsider domestic construction engineering's competitive power.

• The Journal of Small Business Innovation
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• v.20 no.1
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• pp.1-18
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• 2017

This study examined whether divided and spun-off companies design and execute spin-offs to minimize tax burdens by analyzing multiple spin-off transactions in the Dongbu Group, when the Korean tax law regarding corporate restructuring was amended in July 2010. Before the July 2010 tax amendment, taxes on the capital gains arising from the qualifying spin-off were deferred to the earlier of the shares in or assets acquired by the spun-off company are disposed. This tax treatment relieves the divided company's tax burden by deferring taxes on capital gains, compared with non-qualifying spin-offs. However, if shares in or assets acquired by the spun-off company are disposed after the July 2010 tax amendment, the capital gain incurred at the time of the qualifying spin-off would be taxed again at the spun-off company, in addition to a taxation on the divided company's capital gains. This creates double taxation implications for the parties involved in the spin-off. As a result, the double taxation may outweigh the benefit from the tax deferral on the qualifying spin-off, which may make a qualifying spin-off tax unfavorable. Among the four spin-off cases in the Dongbu Group addressed in this study, a spin-off occurred before the tax amendment, whereas three spin-offs occurred after the tax amendment. Initially, we expected that the spin-off before the tax amendment would be a qualifying spin-off, and the other three spin-offs would be non-qualifying spin-offs, considering the taxation rules before and after the July 2010 tax amendment. However, based on the review of summarized balance sheets disclosed in the spin-offs' corporate filings, no capital gains arose during the four spin-offs that occurred in the Dongbu Group. Therefore, we concluded that the Dongbu Group considered non-tax factors more than tax factors while designing and executing the spin-offs. The local media posited during this period that these spin-offs may intend to resolve financial issues in the Dongbu Group, and this analysis was supported by the fact that some shares in the new spun-off companies were sold by the Dongbu Group. Our case studies provide evidence that all costs, including both tax and non-tax costs, must be considered in the course of spin-offs, in addition to the tax burdens on all parties involved in the corporate restructuring, which parallels the work of Scholes et al. (2008). This study provides implications that various aspects should be considered and reviewed in advance when the management makes decisions for effective tax planning.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.4
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• pp.483-490
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• 2014

This research intends to analyze the implications of current adult guidance system from an angle of people with developmental disabilities in an sudden changed information age. Through it, this research intends to seek improvement of adult guardian system for people with developmental disabilities, a main group of the system, from an angle different from the aged. It focuses on significance and improvement for the significance of adult guardian system for people with developmental disabilities, which are weak for self-decision. Furthermore, for the improvements, this system should be able to be information exchange and communities through the using internet in the cyber space.

• The Journal of the Korea Contents Association
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• v.16 no.9
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• pp.386-395
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• 2016

The aim of the study was to explore the effects of parental media mediation types on adolescents' perception of the usefulness of the broadcasting rating system. A total of 520 middle school students participated in the survey. Results showed a higher utility of 'autonomy-supportive restriction' strategy by the parents led to more positive perception of the usefulness of the rating system. This study argues that parents need to pursue a mediation strategy in which a rationale for prohibiting media contents use should be provided and in which the perspective of the adolescent is taken seriously.