• Analytical Science and Technology
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• v.13 no.1
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• pp.108-120
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• 2000

To perform an effective screening for toxic materials of forensic interest detected in high profile criminal case in biological and environmental samples, we tried to construct a searchable computerized database using HPTLC(High Performance Thin Layer Chromatography) and GC/MS. Retardation factor($R_f$) values and UV spectral data of HPTLC were investigated for 160 pesticides, 34 chemicals and 39 explosives of standard grade. The data were compiled in a library. We also analyzed 112 pesticides, 31 chemicals and 17 explosives and 57 volatile organic compounds(VOCs) by GC/MS. The data for RT and characteristic mass ions were also compiled in a library.

• Journal of The Korean Association For Science Education
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• v.37 no.4
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• pp.637-650
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• 2017

It is necessary for undergraduate students whose citizenship reaches a maturity stage to recognize the importance of citizen participation in social issues related to science and technology and to be able to make meaningful use of citizens' rights and responsibilities. Therefore, in order to understand the actual status of undergraduate students' perceptions and practice capacity for citizen participation in science and technology, university students were selected from the department of arts physical studies (33 cases), humanities social studies (62 cases), and science engineering studies (67 cases) at D university in Gyeonggi province. Then, we investigated the scientific technology and society's interaction oriented by citizen participation, responsible decision-making ability, and the effectiveness of the social issue by scientific technology. Analyses of the results reveal that the overall perception level of the students about the interaction between scientific technology and society was high according to department of the arts physical studies, humanities social studies, science engineering studies, in that order, but the scores were not all in average. Therefore, it was found that the current undergraduate students lacked a deep understanding of the interaction between scientific technology and society regardless of the major field. In addition, the students' perception on citizen participation in the interaction between scientific technology and society was found to be problematic regardless of the major field. In responsible decision-making ability, undergraduate students were found to have difficulties in selecting the best alternative in terms of individual beliefs and welfare of others and formulating the action strategies. In addition, the self-confidence of the students about knowledge, skill, and capacity for action related science and technology in the effectiveness of the social issue by scientific technology was very low regardless of major field. We discussed educational implications of these findings.

• 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.

• 한국정보디스플레이학회:학술대회논문집
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• 2007.08a
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• pp.73-75
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• 2007

Micro-cell LC film and polymer network liquid crystal (PNLC) film by using continuous compatible process have been developed . A high-contrast micro-cell LC film has a strong potential as a high-performance flexible device. PNLC film has the low driving voltage. Both films show the characteristics of lightness, thinness and mechanical stability.

• Journal of Korea Technology Innovation Society
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• v.8 no.3
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• pp.1027-1059
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• 2005

The purpose of this paper is to analyze the dynamic characteristics of innovation sources such as scientific knowledges, processing technologies and user's needs in advanced metals technology. The journal articles data of four advanced materials are analyzed; amorphous metals, superplastic materials, shape memory alloys and aluminum-lithium alloy. Some regularities are found from the analysis of the four materials. The innovation proceeds through close interactions among the innovation sources. As the innovation proceeds, the relative importance of each source changes: scientific knowledge initiates the innovation and becomes the most important source in the first phase, then the processing technologies increase importance in the second phase, and then scientific knowledge, again, becomes the leading factor of innovation. Scientific knowledge and processing technology take turns leading the innovation. The impacts of users' needs to the innovation increase more and more as innovation proceeds. The results of analysis imply to the policy makers that emphasis of policy, and therefore the allocation of sources for innovation, should vary along the phases in the life cycle of advanced metals technology.

• Journal of Korea Technology Innovation Society
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• v.15 no.1
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• pp.47-75
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• 2012

Basic research have contributed to technological growth or economic growth in U.S. Specially recent studies say that universities also contribute to economic development through scientific activities like science research, education, technology transfers. But we can not assure whether scientific knowledge was connected to real technology or economic performance, and it is difficult to figure out the effect of scientific output. "What is the exact performance of scientific knowledge?" It is still obscure. In this context, this paper analyzes characteristics of the linkage of science and technology. Data are U.S. R&D expenditure, scientific articles, citation of articles in U.S. patents by fields and sectors. As a result, university sector has the most weight of the linkage of science and technology. But, in relative connection rate analysis, industrial sector's is stronger than any other sectors. In the field analysis, linkage of science and technology is very strong in Chemistry, Physics, Biological sciences fields. And recently the linkage was increased in the fields of Computer science, Agricultural science, Engineering. Finally, this paper supports funding policy or estimation policy of government to product of scientific knowledge. University sector is still important because it has the most weight of the linkage. Scientific knowledge of industrial sector is also important. The connection rate of industrial science is the strongest in all sectors. And this research classify the R&D type by science fields. Considering the differences of science fields is needed to product science knowledge effectively.

• Journal of Scientific & Technological Knowledge Infrastructure
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• s.17
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• pp.76-79
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• 2005

• Journal of Scientific & Technological Knowledge Infrastructure
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• s.14
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• pp.80-83
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• 2004

• Journal of Scientific & Technological Knowledge Infrastructure
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• s.19
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• pp.56-59
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• 2005

• Journal of Scientific & Technological Knowledge Infrastructure
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• s.20
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• pp.62-65
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• 2005