• Journal of Forest and Environmental Science
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• 제25권3호
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• pp.139-146
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• 2009

Forest parks are regarded as one of the scientific ways to keep the forest sustainably developed, meanwhile deliver the benefits to the general public. The development of forest parks in China has experienced simply more than 20 years and both the exploitation and management institutions haven't been set up systematically, which, in reality, reflects as inadequate legislative and policy framework. Without the regulatory guidance and collaborating assistance of environment relating governmental sectors at both national and local levels, it's inevitable that the development of forest parks in the country would face constant problems and conflicts. Therefore, it might be helpful to sort out this conflicts and problems and further more to work out how to solve the barriers. The research in this report started with introducing the IUCN Protected Areas Categories, the overall current situations in China and compared the definition of forest parks in the country and that in international experience. It is to aim to find out the real usufruct rights conflicts during the exploitation and management of forest parks and the method used in this report is field visit, previous investigation, collecting secondary materials, interview, analysis and comparison. The research result in this report couldn't cover all the conflict situations during the forest parks' exploitation and management in China but will provide the analysis of this problem from the legal perspective. Practical application and concerning suggestion will be fully discussed in Part 5 in terms of legislative, social and environmental effects.

• 대한가정학회지
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• 제40권7호
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• pp.69-82
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• 2002

The objective of this study was to develop a Web based learning environment for Home Economics Education(HEE) using ICT (Information & Communication Technology). For the study, the following procedures were performed: 1) the review of literature, 2) development of teaming environment and questionnaires based on Web for HEE using ICT. The Web based learning environment was investigated and designed, and evaluated by the users. The problems indicated through the evaluation were revised and complemented. In addition, 13 sets of Learning questionnaires, which were verified using the same procedure as above, were developed to provide problem solving ability through the Web based learning environment. Learning environment based on the Web entitled "Together with the classroom of HEE" has a main menu, which is composed of rooms for HEE, students, teachers, various topics, recommendation sites, chatting, and e-mail. A room for HEE, in which teaming activity mainly occurs by following the sequences of learning procedures, includes other sub-rooms for the guidance of Loaming, discussion, directories for reference, question and answer, submission of homework, evaluation, and an encyclopedia. Therefore, this study implicates: 1) achievement of teaming environment using the ICT mainly made by students who solve problems closely related to daily life, 2) development of practical learning questionnaires fitted in the present state, 3) preparation for the curriculum. Finally, from this study, I suggested that further studies are needed to develop models for learning, interaction between students and teachers, and the learning materials under the Web based loaming environment.

• 디지털융복합연구
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• 제16권7호
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• pp.123-129
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• 2018

본 연구의 목적은 대학에서 UTAUT에 기반한 m-learning 학습자의 만족도에 미치는 영향을 실증적으로 검증하고자 하였다. 각 요인의 관계를 살펴보기 위하여 289부의 설문지를 SPSS 22.0, AMOS 21.0을 이용하여 분석하였다. 분석결과는 보안성이 성과기대와 노력기대에 정(+)의 영향을 미칠 것이라는 가설은 채택되었다. 다양성과 경제성도 성과기대에 영향을 미치는 것으로 나타났다. 매개변수인 성과기대와 노력기대는 학습자의 만족도에 정의 영향을 미친다는 가설은 채택되었다. 이런 결과는 UTAUT에 기반한 m-learning 운영에 필요한 기초자료를 제공하였다는 시사점이 있다. 이와 같은 시사점에도 불구하고 UTAUT에서 제시된 요인 중 일부만을 분석하였다는 한계점이 있다. 향후에는 대학생 외에 일반인에 대한 분석도 포함하여 UTAUT에 기반한 m-learning에 미치는 다양한 영향 변수에 대한 분석을 통하여 계속적으로 보완하고자 한다.

• 한국컴퓨터정보학회논문지
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• 제8권3호
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• pp.107-112
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• 2003

최근 들어, 채팅시스템의 사용이 일반화되면서, 이제 채팅시스템은 영어 능력 향상을 위한 도구로 활용되고 있다. 영어 채팅을 위해 현재 사용되고 있는 일반 채팅시스템 및 한글 제한 채팅시스템은 영어와 한글을 혼용하여 채팅을 하거나, 사용하고자 하는 단어 등의 내용을 알지 못해 응답을 하지 못하는 등의 교육 효과적인 측면에서 영어 활용 능력을 높이고자 하는 본래의 취지가 약해지는 문제점이 있었다. 본 논문에서는 영어 채팅 사용자에게 적절한 통제와 안내를 하는 다양한 기능을 지원하여 영어의 쓰기와 말하기 등의 교육효과를 동시에 높일 수 있고, C/S와 P2P 방식을 혼용하여 시스템의 성능을 향상시키는 EPUE 채팅시스템을 제안하였다.

• 한국초등과학교육학회지:초등과학교육
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• 제35권1호
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• pp.98-110
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• 2016

The purpose of this study is to identify pre-service elementary school teachers' difficulties and needs in the science class utilizing smart technologies. The participants were nine pre-service elementary teachers who had practical training at an elementary school and took classes related to technology, pedagogy, and science knowledge. The data was collected through semi-constructed and in-depth interviews. The documents such as participants' guidance plans, daily records produced in teaching practice was collected and analyzed. The results of the research are as follow: Pre-service teachers have usually used the technology as a secondary transfer media to convey the knowledge. We found that the pre-service elementary teachers had 15 difficulties in the science class utilizing smart technologies. In addition, they needed a class to focus more on teaching them by integrating technology knowledge, pedagogy knowledge, and science knowledge, and by sharing a real case of science class utilizing smart technologies.

• 한국문헌정보학회지
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• 제40권4호
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• pp.367-383
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• 2006

본 연구의 목적은 지역주민에게 수준 높은 참고봉사를 제공하기 위한 공공도서관의 가상참고정보봉사 협력모형 개발에 필요한 기초 자료를 제공하는 데 있다. 연구의 방법으로 사례조사와 공공도서관 사서를 대상으로 인터넷 설문조사를 실시하였으며 전국의 514개 공공도서관 가운데 375개관(73%)이 설문조사에 참여하였다. 연구 결과를 토대로 협력참고정보데이터베이스의 구축, 가상참고데스크의 운영, 그리고 연령별 주제별 정보안내 및 교육 등의 내용으로 구성된 '통합형 가상참고실'의 구축을 제안하였다.

• Industrial Engineering and Management Systems
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• 제11권3호
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• pp.266-275
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• 2012

The rise of crowdsourcing and web 2.0 opens plenty of opportunities for companies who want to exploit external sources of ideas for internal innovation. Utilization of crowdsourcing for product design and development has been attracting the attention of both enterprises and researchers. Many cases of implementation of crowdsourcing for product design and development such as: Threadless, FIAT Mio, Lego online Factory, etc., have made crowdsourcing a promising alternative source of innovative power. Although crowdsourcing gained access due to improved Internet access and web 2.0, it is little understood how the crowd, with respect to participation, behaves for any crowdsourcing project. To investigate this, we conducted an experiment on a real crowd of engineering related individuals to figure out the crowd participation pattern for various product design and development phases of a new product development project. The experiment results give a quantitative view of the participation of the crowd (i.e., crowd participation pattern) in various phases of a product design and development process that utilizes crowdsourcing, provide a practical guidance for companies to harness the power of the crowd sensibly, and provide experimental data for further research in this field.

• 대한교통학회:학술대회논문집
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• 대한교통학회 2000년도 제37회 학술발표회논문집
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• pp.25-47
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• 2000

In route guidance systems fastest-path routing has typically been adopted because of its simplicity. However, empirical studies on route choice behavior have shown that drivers use numerous criteria in choosing a route. The objective of this study is to develop computationally efficient algorithms for identifying a manageable subset of the nondominated (i.e. Pareto optimal) paths for real-time vehicle routing which reflect the drivers' preferences and route choice behaviors. We propose two pruning algorithms that reduce the search area based on a context-dependent linear utility function and thus reduce the computation time. The basic notion of the proposed approach is that ⅰ) enumerating all nondominated paths is computationally too expensive, ⅱ) obtaining a stable mathematical representation of the drivers' utility function is theoretically difficult and impractical, and ⅲ) obtaining optimal path given a nonlinear utility function is a NP-hard problem. Consequently, a heuristic two-stage strategy which identifies multiple routes and then select the near-optimal path may be effective and practical. As the first stage, we utilize the relaxation based pruning technique based on an entropy model to recognize and discard most of the nondominated paths that do not reflect the drivers' preference and/or the context-dependency of the preference. In addition, to make sure that paths identified are dissimilar in terms of links used, the number of shared links between routes is limited. We test the proposed algorithms in a large real-life traffic network and show that the algorithms reduce CPU time significantly compared with conventional multi-criteria shortest path algorithms while the attributes of the routes identified reflect drivers' preferences and generic route choice behaviors well.

• Steel and Composite Structures
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• 제32권3호
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• pp.347-359
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• 2019

Modular construction has been increasingly used for mid-to-high rise buildings attributable to the high construction speed, improved quality and low environmental pollution. The individual and repetitive room-sized module unit is usually fully finished in the factory and installed on-site to constitute an integrated construction. However, there is a lack of design guidance on modular structures. This paper mainly focuses on the evaluation of the initial stiffness of corrugated steel plate shears walls (CSPSWs) in container-like modular construction. A finite element model was firstly developed and verified against the existing cyclic tests. The theoretical formulas predicting the initial stiffness of CSPSWs were then derived. The accuracy of the theoretical formulas was verified by the related numerical and test results. Furthermore, parametric analysis was conducted and the influence of the geometrical parameters on the initial stiffness of CSPSWs was discussed and evaluated in detail. The present study provides practical design formulas and recommendations for CSPSWs in modular construction, which are useful to broaden the application of modular construction in high-rise buildings and seismic area.

• Steel and Composite Structures
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• 제38권6호
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• pp.705-716
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• 2021

An innovative partially precast partially encased composite beam (PPECB) is put forward based on the existing research. In order to study the flexural performance of the new composite beam which has precast part and cast-in-place part, six prefabricated specimens and one cast-in-place specimen are designed with considering the influence of the production method, the steel flange thickness, the concrete strength grade and the stirrup process on the behavior of the composite beam. Through four points loading and test data collection and analysis, the behavior of partially prefabricated specimen is similar to that of cast-in-place specimen, and the casting method, the thickness of the steel flange, the concrete strength grade and the stirrup process have different influence on the crack, yield and peak load bearing capacity of the component. Finally, the calculation theory of plastic bending of partially precast partially encased concrete composite beams is given. The calculation results are in good agreement with the experimental results, which can be used for practical engineering theory guidance. This paper can provide reference value for further research and engineering application.