• Journal of Broadcast Engineering
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• v.23 no.1
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• pp.11-18
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• 2018

In these days, technologies of virtual reality (VR) and of augmented reality (AR) have applied to diverse areas such as medicine, defense, education that are closely related to real-life practice. In contrast to the previous applications of game or sports, the technologies of VR and AR tends to expand the areas of applications according to development of the imaging or video techniques. This paper introduces VR and AR techniques and some examples of applications. In addition, this paper introduces how the differences between VR and AR technologies affect to the applications of broadcasting systems. In the last, this paper introduces the results of interviews about suitability and future feasibility of VR and AR techniques for broadcasting systems from korean broadcasting companies.

• Advances in materials Research
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• v.6 no.1
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• pp.79-91
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• 2017

In the present work, a design of experiment (DOE) technique using Taguchi method, has been applied to optimize the properties of ODS tungsten heavy alloys(WHAs). In this work Taguchi method involves nine experiments groups for four processing parameters (compaction pressure, sintering temperature, binding material type, and oxide type) with three levels was implemented. The signal-to-noise (S/N) ratio and analysis of variance (ANOVA) were employed to obtain the optimal process parameter levels and to analyze the effect of these parameters on density, electrical conductivity, hardness and compressive strength values. The results showed that all the chosen factors have significant effects on all properties of ODS tungsten heavy alloys samples. The density, electrical conductivity and hardness increases with the increase in sintering temperature. The analysis of the verification experiments for the physical properties (density and Electrical conductivity) has shown that Taguchi parameter design can successfully verify the optimal parameters, where the difference between the predicted and the verified values of relative density and electrical conductivity is about 1.01% and 1.15% respectively.

• Journal of the Korea Fashion and Costume Design Association
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• v.17 no.1
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• pp.117-130
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• 2015

As environmental issues have become a worldwide concern after the 20th century, the idea and the term of 'green growth development' has become familiar to the public. After 2008, the green growth development dramatically became an important ideology in Korea; thus industries, studies and product investments in relation are in active progress. Following the trend, the latter major unit of the middle school textbook "Technology & Home Economics" was named the revision of elementary, middle and high school textbooks in 2009. The learning goal of 'green' or 'eco-friendly' of the revised edition of the textbook will guide the middle school students to have better understanding of the issues of clothing habits and the environment. Furthermore, students will be able to apply the 'green' concepts in their real life and put eco-friendly clothing habits into action. Thus, the practice of effective learning will depend on the quality of the current issue of the textbook. Therefore this study analyzes the eco-friendly contents of the semi-unit from 7 different textbooks and presents an example of textbook production to the preliminary teacher of home economics.

• Journal of Applied Biological Chemistry
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• v.52 no.3
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• pp.151-156
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• 2009

As part of an investigation to identify microorganisms that are biotechnologically interesting for industrial application, we isolated a bacterial strain from Chungkookjang that produces extracellular neutral lipase. In addition, the crude enzyme was characterized. This isolated strain, designated as JKA-3 was identified as Bacillus subtilis JKA-3 based on morphological, physiological and biochemical characteristics, as well as phylogenetic analysis using 16S rRNA gene sequence. The cells were rod-shaped and $0.6-0.8{\times}2.0-2.3\;{\mu}m$ in size. Optimal growth conditions were $35-40^{\circ}C$ and pH 6.0-8.0. The isolate was able to grow in up to 0-10.0% (w/v) NaCl. Optimal activity conditions of the crude lipase fraction of B. subtilis JKA-3 were pH of 7.0 at $35^{\circ}C$. This enzyme was stable in the pH ranging 6.0-8.0.

• Journal of environmental and Sanitary engineering
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• v.10 no.1
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• pp.35-44
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• 1995

The study was carried out to investigate on the response of environmental sanitation problems in action of the volume based waste charge system in Seoul The responses from the 346 persons who dwelled in Seoul was stimulatively answered, this system was considered as a successful on 70.5% of total answers, but little portion(29.4 % ) of those was unknown on the mean of this system. And we knew that this system was need to the communication and education through the press media about this one. After the action of the volume based waste system, the volume of refuse discharged in a day was decreased 30 ∼40% than before. In the problems of environmental sanitation after this system, the number of sanitary insect( cockroach etc ) and rat was decreased, also the production of orders and dust caused by refuse was decreased in comparison with those before. This results were considered that the Separate Collection should be perfectly performed. In response, the regular envelope of refuse was serious problems, the improvement for this one was demanded. The kind of difficult refuse treated was waste rubbers> electric products > furniture> foodstuffs> bottles, cans> papers, pulps etc, and the next proposal for this system should be prepared. Conclusively, the volume based waste charge system should be remarkable system In terms of resources recycling as well as wastes reduction. Above all in order to conform this system the separate collection system should be systematically performed, the next improvable proposal of the detailed methods in this system should be prepared.

• 한국생물공학회:학술대회논문집
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• 2001.11a
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• pp.206-209
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• 2001

Recombinant human GM -CSF was expressed and secreted from transgenic rice cell suspension cultures in its biologically active form. This was accomplished by transforming rice callus tissues with an expression vector, pMYN44. containing the hGM -CSF cDNA. Regulated expression and secretion of hGM -CSF from this vector achieved using the promoter, signal peptide, and terminator from a rice alfa-amylase gene Amy3D. The Amy3D gene is expressed in response to sugar deprivation. The recombinant hGM -CSF was expressed from the transgenic rice cell culture on the sugar-free medium as a yield of about 110 mg/L in the culture filtrate, which was determined by ELISA. Biological activity of hGM-CSF was confirmed by measuring the proliferation of the hGM -CSF dependent TF -1 cells.(This work was supported by a grant from the NRL program of the Korean Ministry of Science and Technology. Shin, Y.- J.. Lee. J.-H and Kwon, T.-H. have been supported by BK21 program from the Korean Ministry of Education)

• Journal for History of Mathematics
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• v.18 no.2
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• pp.75-94
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• 2005

This study is intended to develop the criterion for evaluating the creative products that mathematically gifted students produce in their education program to enhance the development of creative productive ability. 1 distinguish the mathematical creativity with the creativity in the general domain, and make the production model of the creative mathematical product grounded on the mathematicians' work through the mathematical history. The model has the following components; the mathematical knowledge, the mathematical thinking and the mathematical inquiry skill, surrounding the resultive creative product. The students products are focused on one component of the model. Thus the criterion for the creative products is grounded on the each component of the model. According to it, teachers could evaluate the students'work, which got the validity and the reliability.

• Journal of the Korea Computer Industry Society
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• v.7 no.5
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• pp.555-562
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• 2006

Computer animation is tile most advanced composite art to apply image, sound to the theme, Domestic technique is improved but still lacks creativity and content in theinternational market. In this paper, I'll notify the importance of planning and introduce narrative animation to produce their own style of animation. A successful career in the digital animation industry requires more than just technical expertise. It also demands creative mastery, a sense of wonder and boundless imagination. This unique hands-on program combines traditional, creative and technical skills and develops digital artists, not software technicians. Especially, people involved in the industry shouldrecognize a special quality of narrative animation in today's 3D animation and game- saturated climate. Therefore, they are able to create a new form of high-quality animation. It will be expected to promote digital animation education with a new index.

• Asian-Australasian Journal of Animal Sciences
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• v.23 no.1
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• pp.61-67
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• 2010

The chemical components in plant cuticular wax can be used as markers to estimate the species composition of the diet of grazing animals. In this experiment, composition of the diet of yak on the Qinghai-Tibetan plateau was estimated using n-alkane analysis. During the grazing period, samples of whole plants of the species present, plus fecal samples voided by the yak, were collected, air-dried and ground prior to the extraction of cuticular wax n-alkanes. The species composition of the yak diets was estimated by relating fecal alkane contents to those of the plant species, using the 'ATWHAT'software package. The results showed that the n-alkane technique can detect the main dietary components selected by yak. The diet consumed by yak contained 33% Kobresia humilis, 67% Stipa aliena in summer pasture; 26% Potentilla anserine, 74% Carex qinghaiensis in autumn pasture; 52% Carex qinghaiensis, 32% Heteropappus bowerii and 16% Saussurea semifasciata in winter pasture and 5% Carex qinghaiensis, 95% Achnatherum splendens in spring pasture. The apparent selection for forbs is likely to be a reason for nutritional constraint of yak inhabiting alpine environments.

• Journal of the Korean Society of Clothing and Textiles
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• v.31 no.9_10
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• pp.1342-1351
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• 2007

Using a data set drawn from 1419 college students, this study analyzes what implications clothing or fashion has on self-expression or image management in Korean society and who are more likely to use fashion as a image management tool in the process of interacting with others. Employing Pierre Bourdieu's concept of capital, we discuss three theories concerning correspondence between class and fashion: the theory focusing on economic capital in emphasizing the correspondence; the theory focusing on cultural capital in emphasizing the correspondence and the theory emphasizing relationships between fashion and other factors rather than class. Based on the theoretical examination, we select independent variables that can be grouped into status/class variables, or economic capital variables(such as subjective status, income, father's education, father's occupation) and socio-cultural variables, or cultural capital variables(such as possession of cultural capital, desire for upward mobility). Upon regressing strategic use of fashion on independent variables, we find that both status/class variables and socio-cultural variables are statistically significant in explaining the strategic mobilization of fashion for one's image production or social success. It shows that class as a form of economic capital has important effects on the strategic use of fashion, and cultural capital also has effects independent of economic capital.