• 한국환경교육학회지:환경교육
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• 제18권1호
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• pp.70-81
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• 2005

The importance of classes aiming at enhancing students ability in problem solving and decision making has been being recognized as chances of individual citizen for taking part in social decision making processes. This study was intended to find whether teachers' opinion presentation have effects on students' decision making in a class introducing environmental issues. Total of 6 classes, 202 middle school students have participated in a series of experiments including 4 different environmental issues. Only two issues had been addresses in classes as experimental issues and other two issues not addressed as control issues. For each of the two experimental issues, the teacher researcher applied three different approaches to his students that included positive, negative, or no opinion. The results of this study can be summarized as follows; First, the results showed that students changed their decisions on environmental issues more frequently when dealing with those issues in a class than when not dealing with them. Second, as examining the relationship between patterns in which students make decisions and whether a teacher proposed his opinions or not, it is shown that the rates of students whose opinions is not changed nearly have no difference, while when teachers propose their opinions, it is shown that students who haven't yet chosen their positions easily make their decisions into pros or cons, compared with the opposite case. Third, the results of this study partly supported the third hypothesis that teachers opinion presentation would effect on decision-making of students. It was found that there has been a significant effect in the case of car free day system issue, but no statistically meaningful result in the case of no pets in the national park issue. However, in the issue of car free day system, it seems pretty clear that the students followed the direction of teachers' opinion no matter what it was pros or cons.

• Nuclear Engineering and Technology
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• 제41권3호
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• pp.225-236
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• 2009

This study has identified human performance research issues associated with the implementation of new technology in nuclear power plants (NPPs). To identify the research issues, current industry developments and trends were evaluated in the areas of reactor technology, instrumentation and control technology, human-system integration technology, and human factors engineering (HFE) methods and tools. The issues were prioritized into four categories based on evaluations provided by 14 independent subject matter experts representing vendors, utilities, research organizations and regulators. Twenty issues were categorized into the top priority category. The study also identifies the priority of each issue and the rationale for those in the top priority category. The top priority issues were then organized into research program areas of: New Concepts of Operation using Multi-agent Teams, Human-system Interface Design, Complexity Issues in Advanced Systems, Operating Experience of New and Modernized Plants, and HFE Methods and Tools. The results can serve as input to the development of a long-term strategy and plan for addressing human performance in these areas to support the safe operation of new NPPs.

• 한국건설관리학회논문집
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• 제19권3호
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• pp.89-96
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• 2018

본 연구는 빅 데이터 분석을 통한 해외건설 빅 이슈를 도출하였다. 해외건설 Big 이슈 도출을 위하여 2016년 10월 1일부터 2017년 9월 30일 동안 주요 포털사이트 39,436건, 종합일간지 10,387건, 건설전문지 3,36건을 포함해 총 53,759건 대상으로 분석하였고, 그 주요 결과는 다음과 같다. 첫째, 지난 1년간 해외건설 주요 이슈를 살펴보면, 여전히 중동 지역에 편중되고 저가 수주 위주의 플랜트 사업이 한계점이 두드러지게 나타났다. 전년 대비 2017년 상반기, 해외건설 수주가 다소 상승하는 추세를 보이기도 했으나 대외 정세의 불확실성과 국제유가의 하락 등으로 여전히 수주 불안정성을 보인다. 둘째, 최근 1년 해외건설 관련 이슈 중 해외건설 8대 핵심 키워드 기준으로 관심사를 분석한 결과, 지역(29.9%), 기업환경(22.0%), 수익성(17.0%), 단체(15.1%), 사업(5.2%), 시장환경(3.6%), 정책 및 제도(3.6%), 교육(3.5%) 순으로 나타났다. 셋째, 8개 키워드에 대한 총 30개의 이슈 후보 중 담론의 확산성과 지속성이 있는 10대 핵심 이슈를 추출하였다. 이를 토대로 해외건설 핵심 이슈별 상세분석 및 시사점을 도출하였다. 빅 데이터 분석을 통한 해외건설 빅 이슈를 도출한 결과 4차 산업혁명 시대의 도래에 대응하고 국내 건설업계의 위기 상황을 극복할 새로운 산업 패러다임의 대전환점을 맞이해야 하며 건설산업에 고부가가치 기술을 육성하여 수익 창출을 견인해 글로벌 건설경쟁력을 키워야 한다는 시사점이 도출되었다.

• 디지털융복합연구
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• 제19권3호
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• pp.167-176
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• 2021

최근 빅데이터 분석 기술이 발전하면서 사회 이슈를 분석하기 위해 그 동안 많은 텍스트 마이닝 기법을 활용한 연구들이 진행되어왔다. 사회이슈를 도출하기 위한 기존의 연구들을 살펴보면 다량의 텍스트 데이터를 뉴스, SNS 등으로부터 수집하여 토픽 모델링, 네트워크 분석 등의 기법을 이용하여 데이터로부터 이슈를 추출하고 분석하는 방식으로 연구들이 이루어져왔다. 사회 이슈는 다양한 사회현상들이 누적되어 나타나는 결과물이다. 하지만 기존 연구들이 가지는 한계점은 사회적으로 나타나는 이슈, 즉 결과에 대한 분석에 초점이 맞춰져 있어 해당 이슈의 발생 원인을 밝히는 것에는 한계를 가진다는 것이다. 사회이슈에 적절하게 대응하기 위해서는 어떠한 사회이슈가 존재하는지를 확인하는 것뿐만 아니라 사회이슈의 발생 원인을 파악하는 것이 필요하다. 이러한 한계점을 극복하기 위해서 본 연구에서는 사회 이슈와 관련한 텍스트로부터 사회이슈의 원인이 되는 요인을 도출하는 방법을 국어학의 품사이론을 기반으로 제안하였다. 이를 위해서 2017년 1월부터 2019년 12월까지의 3년 동안의 사회이슈와 관련한 뉴스데이터를 수집하여 수집된 텍스트 내 단어들의 인과관계를 인과문형을 찾아 분석한 후 기존 텍스트마이닝 기법 접목하여 사회이슈의 원인 단어들을 찾는 방법론을 제안하였다.

• 한국초등과학교육학회지:초등과학교육
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• 제27권2호
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• pp.134-143
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• 2008

We investigated the understanding of elementary school teachers on the current science issues. As a first step of the research, we choose 10 science issues which are influencing current society. Then we asked 119 elementary school teachers in Seoul, Inchon and Daejeon how important they think and how much they know the issues. As a result, we found that almost elementary school teachers know much on alternative energy, atomic bomb, nuclear power generation and global warming while they less know about high technology as Korean supersonic trainer($T-5^{TM}$) and Synchrotron radiation accelerator. Also we know that teachers take an interest on the articles about current science issues only for a while and forget to study on the issues for themselves. It is more important than whatever for the teachers to have exact understanding on current science issues in order to make civil society by acquiring the science literacy. Therefore elementary teachers and preliminary teachers should have a chance to study on current science issues. We suggest that teacher communities should be supported to improve the competency by cooperation.

• Journal of Information Technology Applications and Management
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• 제22권3호
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• pp.83-103
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• 2015

The rapid development of internet technologies and social media over the last few years has generated a huge amount of unstructured text data, which contains a great deal of valuable information and issues. Therefore, text mining-extracting meaningful information from unstructured text data-has gained attention from many researchers in various fields. Topic analysis is a text mining application that is used to determine the main issues in a large volume of text documents. However, it is difficult to identify related issues or meaningful insights as the number of issues derived through topic analysis is too large. Furthermore, traditional issue-clustering methods can only be performed based on the co-occurrence frequency of issue keywords in many documents. Therefore, an association between issues that have a low co-occurrence frequency cannot be recognized using traditional issue-clustering methods, even if those issues are strongly related in other perspectives. Therefore, in this research, a methodology to reorganize social issues from a research and development (R&D) perspective using social network analysis is proposed. Using an R&D perspective lexicon, issues that consistently share the same R&D keywords can be further identified through social network analysis. In this study, the R&D keywords that are associated with a particular issue imply the key technology elements that are needed to solve a particular issue. Issue clustering can then be performed based on the analysis results. Furthermore, the relationship between issues that share the same R&D keywords can be reorganized more systematically, by grouping them into clusters according to the R&D perspective lexicon. We expect that our methodology will contribute to establishing efficient R&D investment policies at the national level by enhancing the reusability of R&D knowledge, based on issue clustering using the R&D perspective lexicon. In addition, business companies could also utilize the results by aligning the R&D with their business strategy plans, to help companies develop innovative products and new technologies that sustain innovative business models.

• 수산해양교육연구
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• 제23권2호
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• pp.162-181
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• 2011

The purpose of this study was to reveal controversial issues on Stages of Concern(SoC), which is one of the dimensions of Concerns Based Adoption Model(CBAM). To achieve the purpose, documental analysis was employed. The theoretical framework to analyze literature consisted of three categories including stages, measurements, and applications. Based on the framework, controversial issues on SoC were discussed regarding arguments of CBAM developers and critics. The researchers of this study suggested their own opinions on the issues after thorough examination of CBAM developer's arguments and oppositions against them. Finally, suggestions for further studies on issues of SoC and studies measuring SoC were made.

• Asia pacific journal of information systems
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• 제5권2호
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• pp.51-78
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• 1995

This paper suggests a contingent perspective for analyzing information systems issues of the Korean firms. The contingent perspective includes such corporate characteristics as industry, organizational size, strategy, and value-added application function. This research surveyed 119 corporations in manufacturing, banking, distribution, and construction industries. Among those samples 104 data of corporate IS managers turned out to be statistically valid. As a result, those issues are ranked as the most urgent and important IS issues: strategic IS planning, system integration, application of database, process standardization, and network planning and implementation. Furthermore, factor analysis says that thirty issues to be surveyed are to be grouped into seven factors such as IS planning, user/education, database, applications of IT, system management, distributed computing technology, and network applications. It also found through Pearson correlation and ANOVA that organizational characteristics highly influences the IS issues the corporations face.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 A
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• pp.527-529
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• 2001

Interfaces are the point of interconnection between distributed generation and the energy infrastructure. These interfaces are generally physical but can include a market dimension as well. While there are issues surrounding various interfaces, the most important issues in the short term are on the electrical interface. Much of the discussion and debate surrounding distributed generation interconnection has centered on technical issues. However, there are two elements of Interconnection that merit equal consideration-process and contractual issues. The solution of distributed generation Interconnection issues depends on whether existing requirements can be modified to make them more efficient, transparent, and standardized while maintaining the grid's reliability and safety. In this paper, two main courses, standardization and third party participation, are suggested for the resolution of these issues.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권1호
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• pp.24-45
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• 2012

In this paper, we present a survey of security and privacy preserving issues in M2M communications in Cyber-Physical Systems. First, we discuss the security challenges in M2M communications in wireless networks of Cyber-Physical Systems and outline the constraints, attack issues, and a set of challenges that need to be addressed for building secure Cyber-Physical Systems. Then, a secure architecture suitable for Cyber-Physical Systems is proposed to cope with these security issues. Eventually, the corresponding countermeasures to the security issues are discussed from four aspects: access control, intrusion detection, authentication and privacy preserving, respectively. Along the way we highlight the advantages and disadvantages of various existing security schemes and further compare and evaluate these schemes from each of these four aspects. We also point out the open research issues in each subarea and conclude with possible future research directions on security in Cyber-Physical Systems. It is believed that once these challenges are surmounted, applications with intrinsic security considerations will become immediately realizable.