• Journal of The Korean Association For Science Education
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• v.16 no.2
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• pp.200-209
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• 1996

Recent literature in science education has emphasized nature of science in science teaching. The theme has been considered to be an important element for scientific literacy.The purpose of this study was to identify Korean science teachers' points of view on topics related to nature of science, such as definition of science, characteristics of scientific hypotheses, scientific theories and scientific laws, and their construction, scientists, and scientific methods. The relevant 13 items were selected from Views on Science-Technology-Society (VOSTS) by the authors for this study. Most teachers perceived science as an exploratory process or problem solving. Some perceived science as an application of knowledge to make this world a better place to live in. Teachers viewed scientific activities as scholastic and individualistic instead of pragmatic or collective. They did not hold clear understandings of the idea that scientific knowledge is subject to change. As identified in previous studies, teachers thought that scientific ideas develop from hypothesis to theories, and finally to scientific laws. They did not show sound understanding of inventiveness of scientific hypotheses and theories, nor discovery of scientific laws. In summary, teachers' major points of view reflected 'realism'. It suggested that they needed to understand nature of science in the ways which it has been described in recent literature of science education, in order to teach science with personal and social contexts.

• Proceedings of the Korean Institute of Resources Recycling Conference
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• 2005.11a
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• pp.3-14
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• 2005

We Investigated minutely how the biosorption technology using algal biomass is opened in Canadian technology society. Making comparative study for relative technologies in views of overall unit operation cost, we could grasp next facts. - Algal biomass plays the competitive performance for various metals. - Algal biomass biosorbent is regenerated. - Reactor system is not and involved one. This means that algal biomass occupies the strong position as biosorbent. Especially, in North America, for the purpose of metal bearing wastewater treatment, 20 hundred million US dollars was appropriated a sum for the purchase of ion exchange resin. But it is only thirty million US dollars if algal biomass biosorbent is used on behalf of ion exchange resin. Furthermore, the expenses for same treatment can be cut down additively through metal recovery.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.21 no.2
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• pp.65-75
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• 2018

This study analyzes the characteristics of the urban landscape changes as a result of the introduction of private parks among the long-term uncollected urban planning facilities and enables the analysis of the characteristics of the urban landscape changes as a result of the introduction of private parks, and applied to the private park projects. The DSM with its building was established for the quantitative landscape analysis to examine the view ratio using the stacked visible analysis. The analysis showed that Jikdong Park had a high frequency of view from downtown to green due to its location, and that the development project of a private park on park and town boundaries significantly lowered the view ratio. This implies a large degree of damage to the landscape by development projects provided protection of the view as a natural landscape is of value. Chudong Park also saw its view ratio of views from downtown to the hills green area of Chudong Park was much lower than that of Jikdong Park. And it was confirmed that the ratio of view changes due to development projects was small compared to that of Jikdong Park. In other words, although Jikdong Park and Chu-dong Park were developed in a similar scale in terms of the ratio of views, they were subject to significant damage due to their location characteristics. It is also meaningful to note that the degree of change in the landscape resulting from development projects that could not be found in the assessment or review of the existing Landscape Impact. As private parks are introduced in the urban green belt, apartment development is being pushed for at the edge of the green belt. This study is meaningful in that it is derived based on the calculation that the survey results are derived based on the changes in the views on green areas that urban residents may experience as the private park project is carried out, and it should be introduced based on the calculation of the private parks.

• Journal of The Korean Association For Science Education
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• v.38 no.1
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• pp.27-42
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• 2018

This study aims to suggest the conceptual framework for the Nature of Technology (NOT) by examining the current researches regarding the NOT in science and technology education and to analyze the conceptions of experts in science, technology, and engineering fields based on the framework of NOT. The NOT conceptual framework developed in the study consisted of the six domains of NOT, which are 1. Technology as artifacts, 2. Technology as knowledge, 3. Technology as practice, 4. Technology as system, 5. The role of technology in society, and 6. History of technology. Also, the results of analyzing the conceptions for the 30 experts in science, technology, and engineering fields emphasize on the three domains of the 3. Technology as practice, 4. Technology as system, and 5. The role of technology in society among the 6 domains of the framework of the six domains of the NOT framework. This findings are different from the results of previous researches conducted in science and technology education for exploring the conceptions of NOT in the POV of the public and students. As such, the results show that while the public and students possess naive ideas on NOT only focusing on the technology as products and tools, experts in science, technology, and engineering fields possess the authentic views of the NOT reflecting the complex and abstract concepts of technology in terms of the perspectives of philosophy of technology.

• Journal of Korean Elementary Science Education
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• v.18 no.2
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• pp.1-19
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• 1999

Based on the analysis of commonalities and differences in the views of science achievement in major reform documents in the United States and Korea, an aggregated view of science achievement is presented in this paper Science achievement is conceived of in terms of science content and science process. The components of science content include: (a) concepts and theories I n physical, life, and earth and space science;(b) science, mathematics, and technology;(c) science in personal and social perspectives;(d)history and nature of science;and (e) unifying themes. The components of science process include: (a) scientific understanding;(b) scientific investigation;(c) scientific communication; and (d) scientific habits of mind. The components of science process.cut across and intersect with the components of science content. The components of science achievement overlap and are related to one another. Despite such an overlap, understanding the rot e that each component plays provides insight into its unique contributions as well as its interactions with other components. A definition of science achievement and identification of its components based on major reform documents provides a guideline for science assessment as well a s science teaching and learning.

• Journal of Science and Technology Studies
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• v.10 no.1
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• pp.1-25
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• 2010

The purpose of this research is to introduce Langdon Winner's views on technology and to evaluate his theory in terms of the future direction of philosophy of technology. First, an attempt to situate Winner's idea in the history of philosophy of technology will be made. Second, details of Winner's position concerning technology will be demonstrated. His understanding of technology, diagnosis of modern technological society, evaluation of contemporary philosophical discourse on technology, and his own suggestion for overcoming problems of the technological society will be presented respectively. Third, Winner's philosophy of technology will be evaluated. The reflective examination of philosophical theories and concepts, recognition of the practical task of philosophy of technology as an applied philosophy, and the attempt to communicate and involve the public will be suggested as the merits of Winner's philosophy, as well as the future direction that philosophy of technology should take.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 1997.06a
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• pp.95-100
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• 1997

In this paper, we report a system specifications of Hi-resolution and four-screen stereo image projection system which was established in VBL(Venture Business Laboratory) at Tokyo Institute of Technology on 3rd July 1996. The system is 3m $\times$ 3m $\times$2.2m rectangular parallelepiped composed of three 150inch side screens and floor. Host computers can generate virtual environment s in real-time and four projecters project these images to the screens. Viewers are, therefore, surrounded by these screens and an illusion of immersion can be created. Because, the views of users are completely covered with the projection images and many kinds of interactive devices can be used in this system. Moreover, many users can have experience the virtual environments at the same time. Usually, this kind of system uses hi-performance graphics workstations for host computers. One is SGI(Silicon Graphics, Inc.) Onyx with 3 Reality Engines. The other system is 4 personal computers. Because hi-performance and low price graphics accelerators for personal computer have been developed in these years, the abilities of VR(Virtual Reality) systems based on personal computers should be investigated.

• Journal of the Korean Society of Food Culture
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• v.10 no.5
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• pp.419-425
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• 1995

General views of 1,436 housewives respondents through the country on commercial kochujang (fermented hot pepper-soybean paste) were surveyed by questionnaires. The 65.0% of total respondents had experience of purchasing commercial kochujang on the market, mostly super market (43.0%) of respondents, and the respondents who has job and live in apartment purchased the commercial products more often than the others (80.5%). The reason for purchasing commercial products were convenience (36.1%) and short of time (13.0%). The critera for purchasing commercial product were previous experience (40.1%) and well known trademark (20.6%) and not for purchasing were concerning of noxiousness (29.2%) and inferior taste (25.0%). Respondents prefered glass packing (44.3%) and plastic bottle (20.2%) of 500 g pack for single usage (42.3%). The most important standards for kochujang taste were pungency (59.1%) and savory taste (28.6%). The problems indicated to commercial products were inferior taste (32.2%), especially too sweet (52.6%), and safety (20.6%).

• Journal of the Korean Applied Science and Technology
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• v.38 no.6
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• pp.1654-1666
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• 2021

In this study, the impression formation according to the lip design of beauty makeup, preferred lips and its reasons have been empirically analyzed. The research method is a questionnaire survey using SPSS program. As a result of the study, it has been founded the significant influence of the color and shape of the lips on the impression formation, and the modern people's views on lip makeup could be identified. The most preferred lip color was red, and the preferred lip shape was the standard type. As a result of factor analysis, red color showed the highest capability factor, and pink color showed the highest sociability factor among lip colors. It hopefully is expected that this study will be utilized as basic data for beauty design.

• Natural Product Sciences
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• v.17 no.1
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• pp.45-50
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• 2011

Sophisticated modern research tools for evaluation of medicinal plants are available but microscopic methods are one of the simplest and cheapest methods to establish the identity of the source materials. Pharmacognostical investigation of the dried, powdered and anatomical sections of the fruits of Trachyspermum roxburghianum (DC) Craib was carried out to determine its macro and microscopical characteristics along with its physical constants. Externally, the fruits, yellowish or greenish brown in colour are elongated, elliptical, slightly curved, prominently ridged and longitudinal. As seen in transectional views of the fruits from Trachyspermum roxburghianum, the mericarp has concave sides called commissural surfaces and a convex outer side called the dorsal surface. The mericarp has three primary ridges alternating with two secondary ridges on the dorsal side. On the commissural side, there are two primary ridges which are lateral in position and two secondary ridges in the commissural side. The seed is attached to the pericarp by a short stalk called a raphe. Circular, four-lobed calcium oxalate crystals are fairly abundant in the endosperm. Phytochemical studies revealed the presence of phenolic compounds, triterpenoids, proteins and sugars. The pharmacognostical profile of the fruits will assist in standardization for quality, purity and sample identification.