• Journal of the Korean Institute of Landscape Architecture
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• v.28 no.5
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• pp.1-14
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• 2000

The purpose of this study is to propose remedial devices through the analysis on the operation status of nature trails in the nine National Parks in Korea. To accomplish these goals, the field survey for the nature trail facilities and their nature environmental conditions and a questionnaire survey also had been done, and 1,102 samples have been collected. Nature trails are usually located where the visitors re concentrated for a certain season or year-round, and ease of the visits guaranteed. However, since most of trails are located along the valley, the courses have disadvantage of passing in a single trail. Also, many trails are using former tracking courses, and the environmental conditions are not satisfactory due to the damages incurred by the visitors. Since nature trails are still on the introductory stage, basic tactics such as the design of courses, construction methods, management skills needs further improvements. As the Natural Parks Act does not have any clear definition of nature trails, it invokes the definition of tracking course instead, which in turn hinders the development of the nature trails. The nature trail system was just introduced to Korean National Parks and a pioneer in the Korea. Therefore, when provincial and urban recreational parks wish to introduce the environmental education programs within each park system, nature trails in national parks can be performed as a role model. Further improvements should be made within the such fields as preliminary natural ecological survey, lacks of professional designers for the facilities, lacks of interpreter and interpretation within nature trails.

• International Journal of Aeronautical and Space Sciences
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• v.13 no.1
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• pp.1-13
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• 2012

Over 3.8 billion years, through evolution nature came up with many effective continually improving solutions to its challenges. Humans have always been inspired by nature capabilities in problems solving and innovation. These efforts have been intensified in recent years where systematic studies are being made towards better understanding and applying more sophisticated capabilities in this field that is increasingly being titled biomimetics. The ultimate challenge to this field is the development of humanlike robots that talk, interpret speech, walk, as well as make eye-contact and facial expressions with some capabilities that are exceeding the original model from nature. This includes flight where there is no creature that is as large, can fly as high, carry so heavy weight, fly so fast, and able to operate in extreme conditions as the aircraft and other aerospace systems. However, there are many capabilities of biological systems that are not feasible to mimic using the available technology. In this paper, the state-of-the-art of some of the developed biomimetic capabilities, potentials and challenges will be reviewed.

• Journal of The Korean Society of Agricultural Engineers
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• v.49 no.5
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• pp.33-44
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• 2007

This study proposed a Rural Amenity Values Assessment Model (RAVAM) to evaluate the rural amenity resources based on the Myun as a spatial unit. In RAVAM, 61 rural amenity resources were classified into almost intact nature resources, interaction between nature and man resources, man-made resources, respectively. Especially, Rural Scenic Value Index (RSVI) was developed to quantify rural scenic views as a rural amenity resource. RSVI was utilized in evaluation process of rural amenity resources. The weighing factors for the amenity resources were evaluated from the step wise pair-comparison results of 11 specialists by Analytic Hierarchy Process(AHP). In the results, the weighting values of almost intact nature resources, interaction between nature and man resources, man-made resources were 496, 323 and 181, respectively, among total value being 1,000.

• Journal of Korean Elementary Science Education
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• v.23 no.2
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• pp.159-171
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• 2004

Understanding the nature of science is being emphasized recently among the major goals of science education. The nature of science is concerned with aims of scientific work, the status and nature of scientific knowledge, and science as societal institution. This is a review on how to investigate the pupils' ideas about the nature of science, which was suggested by Driver et al. in their book 'Young people's images of science (1996)'. The purpose of this review is to consider the methodological problems of investigating the pupils' ideas about the nature of science, and to get the implications of developing the instruments about it. The instruments, developed by Driver et al., are described as a model and their suggestions are surveyed. Several hints are given this article to develop the similar instruments.

• Journal of Science Education
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• v.44 no.2
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• pp.197-204
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• 2020

In order to teach the nature of science which is one of the goals of science education, the aesthetic model of science was developed into a two-dimensional model through theoretical reviews on the aesthetic aspect of science. We represented 10 kinds of scientific experiments that scientists thought are beautiful in the aesthetic space of science. This paper tried to represent the greatest and famous scientific experiments in the history of science into the aesthetic space of science to find the suitability or usefulness of that model. At the same time, we were able to develop measuring tools as the Likert-scale with pictures of scientific experiments. Through this, we propose various teaching approaches on the nature of science (NOS) based on the aesthetic model of science and the potential for utilization in measuring the effects of the ways of teaching NOS.

• Journal of Environmental Impact Assessment
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• v.26 no.3
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• pp.181-194
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• 2017

While over 90 percent of fishways are made up with concrete material, nature-like fishways are started to be established as a form of small stream using natural materials. Recently, the central government in collaboration with a university has proposed a 'Standard Model of Nature-like Fishway' with a purpose to provide as a national design standard of nature-like fishway. This study aims to criticize the proposed design model of nature-like fishway and to propose improvements by examining other international cases. As a result, we found problems and limitations of the proposed design model due to the lack of research and experience about making nature-like fishway in Korea. Especially, for designing bypass nature-like fishway we found the lack of studies about structure management strategies, establishment of rocks or pebbles inside the stream, and natural materials. In this sense, more studies about nature-like fishway design adaptable to our environment need to be conducted. In addition, since the proposed design standard for nature-like fishway has been created based on the limited examination of existing domestic cases, it is desirable to improve the design standard on the basis of hydrological and biological research so that they could be adapted effectively to regional and local contexts.

• School Mathematics
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• v.4 no.2
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• pp.205-222
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• 2002

In school mathematics, the negative numbers have been instructed using the intuitive models such as the number line model, the counting model, and inductive-extrapolation on the additionand multiplication and using inverse operation on the subtraction and division. Theseinstructions on the negative numbers did not present their formal nature and caused the difficulty for students to understand their operations because of the incomplete function of the intuitive models. In this study, we tried to improve such problems of the instructions of the negative numbers on the basis of the didactical phenomenological analysis. First of all, we analysed the nature of the negative numbers and the cognitive obstructions through the examination about the historic process of them. Second, we examined hew the nature of the negative numbers were analysed and described in mathematics. Third, we explored the improving directions for them on the ground of the didactical phenomenological analysis. In school mathematics, the rules of operations using the intuitive models of the negative numbers have been Instructed rather than approaching toward the nature of them. The negative numbers have been developed from the necessity to find the general solution of equations. The study tries to approach the operations instructions of the negative numbers formative]y to overcome the problems of those that are using the intuitive models and to reflect the formative Furthermore of the negative numbers. Furthermore, we examine the way of the instruction of the negative numbers in real context so that the algebraic feature and the real context should be Interactive.

• Journal of the Korean Chemical Society
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• v.68 no.2
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• pp.107-116
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• 2024

The purpose of this study is to analyze changes in pre-service chemistry teachers' cognition of the nature of model in the evaluation and modification process of model using technology. Changes in cognition of the nature of model were analyzed focusing on the 'Abstraction' and 'Simplification' of the 'Representational aspect', 'Interpretation', 'Reasoning', 'Explanation' and 'Quantification' of the 'Explanatory aspect' that were deemed insufficient for pre-chemistry teachers in previous study. For this purpose, 19 third-year pre-service chemistry teachers at a teacher's college in Chungcheongbuk-do were asked to evaluate the model related to Boyle's law developed using technology, revise the model based on the evaluation results, and make a final evaluation. As a result of the study, it was confirmed that pre-service chemistry teachers' cognition of 'Simplification' of the 'Representational aspect' and 'Interpretation', 'Explanation', and 'Quantification' of the 'Explanatory aspect' changed positively through the evaluation and modification process of the model. Therefore, it was found that the evaluation and modification process of the model plays a key role in changing the cognition of the nature of model. However, there was little change in cognition of 'Abstraction' of the 'Representational aspect' and 'Reasoning' of the 'Explanatory aspect'. The cognition of these factors can be seen as more difficult to change than the cognition of other factors. To solve this problem, more sophisticated educational design for pre-service chemistry teachers is needed.

• Journal of Fisheries and Marine Sciences Education
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• v.22 no.4
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• pp.589-603
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• 2010

The purpose of this study is to develop a integrated(fusion) utilization model aimed at maximizing the development/management functions of urban estuarine area and to present an integrated concept by analyzing the existing document and data. The main points of this study are as follows: 1) The integrated utilization model suggested in this paper goes beyond the existing idea of sustainable utilization and conservation, putting an emphasis on rational decision-making in estuary management and peaceful coexistence between human and nature. 2) Policies for utilization/development/conservation/regeneration of urban estuarine area include the establishment of communication system between human and nature and a safety net considering both human and nature, the support for environment-friendly community development and the importance of preserving valuable ecosystem and wetland habitat. 3) Lastly, this study suggested that the major tasks for the fusion utilization model development are the integrated management of estuary areas, the conservation and preservation of wetland ecosystem, proper utilization of estuary's productivity, and the introduction and action plans of the integrated management model including the best way to address contamination and disaster management.

• SUVANNABHUMI
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• v.14 no.1
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• pp.31-52
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• 2022

Derived from the juxtapositional model of Comparative Literature, this article analyzes two movies, The Story of Pao (Chuyện của Pao, directed by Ngô Quang Hải) and Into the Wild (directed by Sean Penn), using eco-criticism and focusing on two specific aspects: looking for the relationship between "culture" and "nature" and questioning the ideology that puts people at the center of the natural world. Specifically, the article points out similar tones in discovering and praising the beauty of nature, and at the same time, focuses on explaining the "disagreement" and "harmony" in behaviors of different communities towards Mother Nature in these two films. Finally, The Story of Pao and Into the Wild are both read as discourses that participate in the repositioning of human beings in the natural world. The purpose of juxtaposition, therefore, is to seek a new existential dimension for the works, providing an opportunity to uncover and reveal hidden layers of meaning of each text.