• Journal of information and communication convergence engineering
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• 제4권4호
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• pp.166-169
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• 2006

Almost all network systems provide an authentication mechanism based on user ID and password. In such system, it is easy to obtain the user password using a sniffer program with illegal eavesdropping. The one-time password and challenge-response method are useful authentication schemes that protect the user passwords against eavesdropping. In client/server environments, the one-time password scheme using time is especially useful because it solves the synchronization problem. In this paper, we present a new identification scheme: OPI(One Pass Identification). The security of OPI is based on the square root problem, and OPI is secure: against the well known attacks including pre-play attack, off-line dictionary attack and server comprise. A number of pass of OPI is one, and OPI processes the password and does not need the key. We think that OPI is excellent for the consuming time to verify the prover.

• 한국한의학연구원논문집
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• 제14권2호
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• pp.155-163
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• 2008

State Administration of Traditional Chinese Medicine of the People's Republic of China lead Research on Chao medicine's Constitutional Treatment project by which could involve the following principles. First, constitution can be identified, second, constitution correlates to ones susceptibility to diseases, third, constitution can be harmonized, fourth, prescription made according to ones constitution and patterns. These ideas is originated by Lee Je-ma's theory of Four Constitution Type in "DongEuiSooSeBoWon"(Longetivity and Life Preservation in Eastern Medicine). This is much similar to currents trends of personalized medicine in western medical sciences. Therefore further developing Lee's theory would have significant value on various fields of medicine.

• 한국초등과학교육학회지:초등과학교육
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• 제19권1호
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• pp.71-83
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• 2000

This study examined the influences of science project activities based on multiple intelligences on problem solving behaviors of elementary school children. Specifically, the influences of the project activities on the problem solving skills and propensities of the children were investigated. Forty-four fifth graders were selected for the study. They performed the projects and made their products of it during five months on the units of "Weather" and "Our Body" Criteria for assessment of problem solving abilities were determined. The patterns reflected in products of the project activities were examined, then the observation of the subjects' problem solving behaviors and the interviews were performed based on the criteria. The results were analyzed through both of qualitative and quantitative approaches. In these analyses, the implementation of the science projects was found to contribute to the improvement in all sub-factors of problem solving, specially, skills associated with the propensities of problem identification and of the collection, analysis, and synthesis of data significantly increased

• 시스템엔지니어링학술지
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• 제18권1호
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• pp.58-65
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• 2022

An application case of systems engineering (SE) processes for the small unmanned aerial vehicle (UAV) development project, which was funded by the Korean government during June 2017 ~ August 2020, is briefly presented in this paper. From the beginning to the end of the project, SE processes had been applied and managed by simple and intuitive aspects for the small/medium business companies joined with insufficient experiences of SE. And the specific considerations of the processes were focused to the missions of disaster and public safety purposes required from the government, such as identification, patrol, fire, rescue, etc. As a result, the project applied by the tailored SE processes had been rated of a good and higher accomplishment on the final evaluation, and then the related several programs were prepared successively for the other opportunities.

• 국제학술발표논문집
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• The 2th International Conference on Construction Engineering and Project Management
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• pp.169-178
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• 2007

This paper has investigated the cultural practices influencing business performance and integrity in selected Malaysian contractors and has discussed culture related issues to improve the management of cultural capitals in the Malaysian construction industry. Issues of current enterprise culture and applicable cultural practices, leadership styles, enterprise axiology and integrity, cultural practices and loyalty, and identification of organizational culture are discussed during the semi-structured interviews and questionnaire survey. Conclusions has been drawn that the people oriented and task oriented management style have a similar quantity of supporters in Malaysian contractors. The integrity and profit are respectively identified as the enterprise axiology in the ethical and economic perspective. The monkey culture is considered as the most applicable type for the cultural practice and the current enterprise cultures applied in the Malaysian contractors are mostly positive to both the organizations and society.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.184-189
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• 2009

In 2008 the total estimated failure costs in the Netherlands was estimated to be 11.4% of the industry's turnover compared to 7.7% seven years earlier. Failure costs can be the consequence of rework as a result of failure to conform to the product requirements and specifications or due to inefficient processes and bad management practices. Many construction companies however are unaware of the exact nature of these costs, their root causes or how to control them. This paper describes work carried out in the Netherlands to identify the different types of failure costs in construction and their root causes. The research described builds on previous findings by another research institution and expands it to include information collected from project cases and a survey of a number of project managers in the construction industry. The paper describes the analysis of the results from cases and the survey to identify the root causes of failure costs. Research shows, for example, that many failure costs are related to the client taking late decisions and making changes to the project requirements.

• 한국건설관리학회논문집
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• 제2권4호
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• pp.62-68
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• 2001

최근 국내 건설업계는 건설경기 침체, 해외건설 수주부진, 치 열한 경쟁 등 어려운 상황에 직면한 실정인데 이에 본 연구에서는 효과적인 리스크관리 방법을 제시하고자 한다. 효과적인 리스크관리와 성공적인 사업관리를 수행하기 위하여 국내 상위 건설회사를 모집단으로 한 설문조사를 실시하여 건설관리에 의한 리스크인자와 리스크관리에 의한 리스크인자를 검정하여 리스크인자를 분석하고 미리 예측하여 원인을 분석하여 대응$\cdot$제어하면 리스크인자를 경감하게 되어 공사비, 공기, 품질을 향상시켜 양질의 건설공사를 수행 할 수 있게 하는 방안을 제시하는데 그 목적이 있다.

• 한국인터넷방송통신학회논문지
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• 제14권1호
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• pp.131-137
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• 2014

만화저작물은 웹하드 서비스의 급증과 스마트기기의 보급으로 인하여 불법 복제가 만연하고 있으나 음악, 동영상과 같이 저작물을 식별할 수 있는 핑거프린팅 기술 개발이 이루어지지 않아 무차별 복제에 따른 저작권자들의 피해 규모가 크게 발생하고 있다. 한국저작권위원회의 저작권 R&D 과제로 진행되고 있는 북스캔 만화 저작물 식별기술 연구(과제명 : 북스캔 어문/만화 저작물 식별 및 복제방지 기술 개발)는 불법으로 유통되는 북스캔 만화를 효과적으로 식별할 수 있는 기술 개발을 통하여 만화 저작권자들의 수익 기반 확대와 만화저작물의 건전한 생태계 조성 기반을 목적으로 진행되고 있다. 본 논문은 동영상 특징점 추출 알고리즘으로 기 연구된 계층적-대칭-차이-특징점 방식의 알고리즘을 기반으로 한 북스캔 만화 저작물 식별 시스템에 대한 구현 모델을 제시하고자 한다.

• Journal of Information Processing Systems
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• 제12권1호
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• pp.1-34
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• 2016

Gene identification is at the center of genomic studies. Although the first phase of the Encyclopedia of DNA Elements (ENCODE) project has been claimed to be complete, the annotation of the functional elements is far from being so. Computational methods in gene identification continue to play important roles in this area and other relevant issues. So far, a lot of work has been performed on this area, and a plethora of computational methods and avenues have been developed. Many review papers have summarized these methods and other related work. However, most of them focus on the methodologies from a particular aspect or perspective. Different from these existing bodies of research, this paper aims to comprehensively summarize the mainstream computational methods in gene identification and tries to provide a short but concise technical reference for future studies. Moreover, this review sheds light on the emerging trends and cutting-edge techniques that are believed to be capable of leading the research on this field in the future.

• Journal of Construction Engineering and Project Management
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• 제4권1호
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• pp.29-36
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• 2014

Tunnelling has become a preferred method of construction for road and highway projects in countries with a lot of hilly slope geological conditions such as found in Malaysia. However the construction works of a tunnelling project are usually complicated and costly, which consequently impose great risks to the parties involved. This paper identifies the key significant risks and sub-risks for tunnelling construction projects in Malaysia through a case study. Interview has been used as the solitary means to determine the significant risks from contractor's eleven key project personnel who were directly involved in the tunnelling construction such as consultant, construction manager and tunnel engineers. The importance of the risks identified is then prioritised and ranked via the Analytic Hierarchy Process (AHP)'s pairwise comparison approach to determine their criticality towards a successful delivery of project. As a result, three key risks have been identified as significant for the tunnelling case study project, namely health and safety, cost overrun in construction and time overrun in construction. Two sub-risks each of the latter categories, which are cost underestimation and unforeseen events (cost overrun in construction) as well as plant and machinery failure and delay in material delivery (time overrun in construction), have occupied the top five overall risk ranking.