• Journal of The Korean Association of Information Education
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• v.11 no.1
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• pp.79-89
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• 2007

Considering the continuous increase of teenagers' Internet use and the high rate of their participation in online communities, educators need to devote efforts to minimize the negative function of teenagers' Internet use and to guide them to experience positive aspects of Internet. Through activities in online communities, teenagers can experience various socialities and explore their self-consciousness. However, on the other hand many communities do not provide teenagers with considerate care. This may cause conflict in their sense of value and mislead them. Through this study, online learning community is designed and developed, which can reflect teenagers' various needs and connect their needs with learning experiences. The community consists of the following categories: 'about e-Tivity'(community vision, general information, list of activities, Q&A), 'activity space for teens'(event hall, data park, e-Tivity center), 'administrative space for teachers and managers'(research room, management room), and 'teen's private space'(my room, my avatar).

• Journal of the Korean Institute of Intelligent Systems
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• v.13 no.2
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• pp.186-191
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• 2003

Skills in tracing of the MR divide into following, approaching, avoiding and warning and so on. It is difficult to have all these skills learned as neural network. To make this up for, skills consisted of each module, and Mobile Robot was controlled by the output of module adequate for the situation. A mobile Robot was equipped multi-ultrasonic sensor and a USB Camera, which can be in place of human sense, and the measured environment information data is learned through Modular Neural Network. MNN consisted of optimal combination of activation function in the Expert Network and its structure seemed to improve learning time and errors. The Gating Network(GN) used to control output values of the MNN by switching for angle and speed of the robot. In the paper, EN of Modular Neural network was designed optimal combination. Traveling with a real MR was performed repeatedly to verity the usefulness of the MNN which was proposed in this paper. The robot was properly controlled and driven by the result value and the experimental is rewarded with good fruits.

• Information Systems Review
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• v.15 no.1
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• pp.69-89
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• 2013

This study examined the factors influencing participation of online community and intention of joint purchase in Korea and China. The online community member actively participate the social activities that can cause the effective communication characters and the great support of the society. In these two factors, the sense of worth related with compensation, norm, interaction, shared values will be taken as the independent variables. These variables as a parameter are related with the intention of joint purchase. To be aware of their behavior norm, interaction, compensation, shared value, these factors will be taken as predicting their behaviors in the online community and their further participating, commitment and co-shopping intention. As the results, compensation, norms, interaction, shared values had significant effects on the participation of online community, and this affected the intention of joint purchase in online community. Compensation and norm were significant in Korean sample. Implications and further direction are suggested on the base of the results.

• Journal of the Korean Chemical Society
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• v.10 no.1
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• pp.25-31
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• 1966

It is well known that the coloration and structural changes in thermal treatment of polyacrylonitrile are due to the formation of partly hydrogenated naphthylidine-type ring involving the pendant nitrile groups. Any quantitative study of the reaction, in the sense of kinetics and/or statistics, however, has never been reported. This paper presents that, at first, the disappearance of the nitrile groups follows the first order kinetics, which indicates clearly that nitrile groups do not disappear by a long chain reaction-the kinetic chain length is very short. This observation rules out the long intramolecular and intermolecular propagation chain through which most of the nitrile groups disappear. From the evidence that a similar reaction occurs in propylene carbonate solutions without gel formation, one may conclude that the coloration and structural changes are not necessarily intermolecular reaction. Secondly, a finite amount of nitrile groups remains unreacted at the extrem of reaction-not contributed to the formation of naphthylidine-type ring. The concentration of this unreacted nitrile groups is 19∼22% which is good agreement with the statistically calculated value of 19.2%.

• Journal of the Korea Fashion and Costume Design Association
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• v.17 no.4
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• pp.117-129
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• 2015

This study is to find out the changes and features of male consumers' life style and purchase tendency according to the change of Korean fashion market, and based on which to suggest the design for the 20s men as well as a proper distribution channel for it. Documentary research and investigation were done together for the study. By reviewing documents focused on previous studies and declaring the change of men's fashion shopping tendencies and the following changes and features of their fashion sense and styles a conceptional frame for a design suggestion was presented. Ways to investigate were men's wear collection research, Q-technique. First of all, they tend to boldly reduce unnecessary purchases and do not hesitate to focus on the wanted item, expanding the trend of 'value purchase.' Secondly, men's wear use various design elements with feminine images, while the materials, colors and design expressive techniques that have been exclusively used for women's wear, began to be applied to men's one, turning them into gentle styles with womanhood is stressed. Thirdly, Korean distribution channel is rapidly diversified from departments to new-concept ones such as multi-brand stores. Especially, displaying and selling various optional products, multi-brand stores lead such diversification of fashion distribution channel. Fourthly, features of the drapery types favored by the 20s men are that they like no-chromed dark or blackish colors with fixed structure and partially-applied drapery on the clothes. Fifthly, it turns out that men in their 20s set a premium on design and price while they buy clothes. In addition to that, they buy clothes mainly during discount period and displayed much bigger satisfaction for the purchase on discounted price that those on normal price.

• Journal of The Korean Association of Information Education
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• v.9 no.2
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• pp.221-228
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• 2005

The art appreciation education is emphasized to develope independent thought and upright value decision in the flood of various image medium. A experience of beauty and a express part related with the sentimental field is focused on directing in the seventh arts curriculum, too. Although the art appreciation education is emphasized, just expressive and functional art texture is still taught in the education spot up to now. Also a appreciative activity is limited simply to describe own feeling intuitionally ; time shortage, difficulty of analysis product, difficulty of guiding appreciation. In this paper I refer that analyze figurative factors of a art product, modify it by applying other program, compare with it and then I develope web base art appreciation system and apply it. As a result I get educational effect. When checking line, form, light and darkness, color, feeling, space and composition of external some factors in a product, formative sense and analytical appreciation is improved.

• Archives of design research
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• v.15 no.4
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• pp.25-32
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• 2002

It has gone that the age of making the products focusing on only the capacity or efficiency, We face the age that only the products which fit the sensitivity of customers. Now, customers attach importance to impressive design, convenience, and satisfaction as well as the quality, cost, and capacity of the products. Under the much plentiful life, it has a limit of exciting customer's interest to pursue the quality, cost and capacity, so we need new design development which can produce more different, better, and newer mood. Recently, past synchronism and standardization have collapsed according to the change of sense of value, customers make much account of their own sensitivity comparing with at any time in much information and visual stimulus, and they would like to purchase the products which satisfy their sensitivity as a way of their image creation and settlement of wants.

• The Journal of the Korea Contents Association
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• v.10 no.2
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• pp.165-175
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• 2010

This paper claims the argument that the taste of own is not the intrinsic value but is determined by the environment or habitus, based on Bourdieu's theory. This concept of taste leads up to a natural stream of imitation and alignment. We conclude that the stream is the fashion which be justified by the major agreement. But the nature of fashion exists in hegemony and determines a sense of kinship or a point of difference. In this regard, popular cultures as a window circulated fashion have a negative consequence that can be method of discriminating the minority and justifying vested rights. Accordingly, we have to become wary of the strategy of control using fashion and popular cultures, and need to recognize the prior paradigm about fashion. In the process, we can expect that fandom or counter cultures based on digital high technology constitute subjectivity and dynamics of popular by interaction between the objects.

• Journal of the Korea Society of Computer and Information
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• v.19 no.1
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• pp.181-189
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• 2014

The purpose of this study is to suggest some policy implications for the youth through empirical study about the effects of middle school students' brand perception on their sociability. For the purpose of this study, this study established a causal model about the relationships between brand perception and sociability through review of previous studies and surveyed for empirical research. The results of this study are presented as follows: Preference, imitation, and relevance as brand purchase elements of teenagers affected their self-esteem and empathy for others significantly. Self-esteem that is meditating variable in this study did not have a significant effect on sociability, while empathy for others had a great effect on it. This study suggested policy implications for teenagers to have good standards and a sense of value in a brand purchase.

• Journal of The Korean Astronomical Society
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• v.18 no.2
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• pp.41-69
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• 1985

For the well observed 16 globular clusters with known metal abundance (Z), the helium abundances (Y) and ages are determined by various methods, and the relations between Y, Z and age are examined. The luminosity $L_{RR}$ of RR Lyrae stars is known to be dependent of evolutionary models and pulsation theory in the sense that the pulsation theory and horizontal branch (HB) models yield the anticorrelation between $L_{RR}$ and Z whereas main sequence (MS) and red giant branch (RGB) models yield the direct correlation between them. Similarly the anticorrelation between Y and Z is obtained from the HB models and pulsation theory whereas the direct correlation between them is obtained when the RGB model is applied. The current evolutionary models yield the anticorrelation between Z and age of clusters whenever the direct correlation between Y and Z holds. However when the anticorrelation between Y and Z is applied for age determination, the similar age of clusters is obtained as shown by Sandage (1982b). The ages, which are determined by the fitting of C-M diagrams to isochrones in the ($M_v$, B-V)-plane, suggest the two different chemical enrichment processes, which could be accounted for by the disk-halo model for the chemical evolution of the Galaxy (Lee and Ann 1981). Also it is known that the R-method is very useful for Y-determination and the derived Y's show the increasing rate of $\frac{{\Delta}Y}{{\Delta}Z}{\simeq}0.5$ which is comparable to the observed value of $\frac{{\Delta}Y}{{\Delta}Z}{\simeq}0.3$ from HII regions and planetary nebulae by Peimbert and Torres-Peimbert (1976). In this case, the age-metallicity relation of globular clusters could be explained by the disk-halo model.