• Journal of the Optical Society of Korea
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• v.20 no.4
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• pp.515-523
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• 2016

Spectral reflectance is sparse in space, and while the traditional spectral-reconstruction algorithm does not make full use of this characteristic sparseness, the compressive sensing algorithm can make full use of it. In this paper, on the basis of analyzing compressive sensing based on the orthogonal matching pursuit algorithm, a new algorithm based on the Dice matching criterion is proposed. The Dice similarity coefficient is introduced, to calculate the correlation coefficient of the atoms and the residual error, and is used to select the atoms from a library. The accuracy of Spectral reconstruction based on the pseudo-inverse method, Wiener estimation method, OMP algorithm, and DOMP algorithm is compared by simulation on the MATLAB platform and experimental testing. The result is that spectral-reconstruction accuracy based on the DOMP algorithm is higher than for the other three methods. The root-mean-square error and color difference decreases with an increasing number of principal components. The reconstruction error decreases as the number of iterations increases. Spectral reconstruction based on the DOMP algorithm can improve the accuracy of color-information replication effectively, and high-accuracy color-information reproduction can be realized.

• Fire Science and Engineering
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• v.25 no.3
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• pp.91-98
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• 2011

This study is about fire resistance performance of wood framed lightweight wall including a middle lintel as a traditional wall form in Korea. The target wall is non-loadbearing system which constructed with $38{\times}89$ mm ($2"{\times}4"$) wood frame and fireproof gypsum board covering, including a middle lintel made of $150{\times}150$ mm section glue-laminated timber. As a test results, all specimens have showed fire resistant performance over 90 minutes and tests were maintained until flame occuring on Specimen-l, 2, 3 at 91 min, 97 min and 98 min respectively. Fire resistance of the heat side gypsum board was 45 minutes and charring rate of middle lintel was equivalant with that of usual timber. The wood stud inside wall system showed relatively quick combution characteristic when exposed to high temperature with no temperature rising delaying time caused by moisture evaporation because of the dehydration preceded during the early period of fire side gypsum board resist to heat.

• Journal of Technologic Dentistry
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• v.32 no.3
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• pp.255-264
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• 2010

Purpose: This study was conducted to corroborate factors affecting dental technicians recognition states of their job consciousness. Methods: Self-administering questionnaires were distributed directly to some 200 registered female dental technicians in metropolis, small & medium-sized cities, farming and fishing villages of whom 153(76.5%) female dental technicians and female students responded in December, 2009. Information on recognition states of female dental technicians and female students in department of dental technology possible occupational mind and other general characteristics was gathered. Analysis of data was processed by use of X2-test and multiple regression analysis. Results: The recognition states of occupational satisfaction were higher in female students than female dental technicians(p<.05). They were observed that between respondents with more than five years of work and less than five years of career(p<.05). Statistically significant differences were observed in recognition values of female dental technicians occupational satisfaction between high and low groups of internal characteristic of their position and all ceramic part(p<.05). Conclusion: For woman dental technicians, the most predictive variables for recognition values of occupational satisfaction were an age, between groups, which of part and career(p<.05). Finally, this result suggests the facts that in order to achieve self-realization through the work experience, women herself should get rid of the dichotomous diagram and should change the consciousness of traditional role normals.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.45 no.12
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• pp.83-88
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• 2008

The QPP interleaver has been gaining attention since it provides contention-free interleaving functionality for high speed parallel turbo decoders. In this paper we first show that the quadratic term $f_2x^2%K$ of $f(x)=(f_1x+f_2x^2)%K$, the address generating function, is periodic. We then introduce a low-power address generator which utilizes this periodic characteristic. This generator follows the conventional method to generate the interleaving addresses and also to save the quadratic term values during the first half of the first period. The saved values are then reused for generating further interleaved addresses, resulting in reduced number of logical operations. Power consumption is reduced by 27.38% in the design with fixed-K and 5.54% in the design with unfixed-K on average for various values of K, when compared with the traditional designs.

• Wind and Structures
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• v.30 no.2
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• pp.181-198
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• 2020

In the traditional buffeting response analysis method, the spanwise incomplete correlation of buffeting forces is always assumed to be same as that of the incident wind turbulence and the action of the signature turbulence is ignored. In this paper, three typical bridge decks usually adopted in the real bridge engineering, a single flat box deck, a central slotted box deck and a two-separated paralleled box deck, were employed as the investigated objects. The wind induced pressure on these bridge decks were measured via a series of wind tunnel pressure tests of the sectional models. The influences of the wind speed in the tests, the angle of attack, the turbulence intensity and the characteristic distance were taken into account and discussed. The spanwise root coherence of buffeting forces was also compared with that of the incidence turbulence. The signature turbulence effect on the spanwise root coherence function was decomposed and explained by a new empirical method with a double-variable model. Finally, the formula of a sum of rational fractions that accounted for the signature turbulence effect was proposed in order to fit the results of the spanwise root coherence function. The results show that, the spanwise root coherence of the drag force agrees with that of incidence turbulence in some range of the reduced frequency but disagree in the mostly reduced frequency. The spanwise root coherence of the lift force and the torsional moment is much larger than that of the incidence turbulence. The influences of the wind speed and the angle of attack are slight, and they can be ignored in the wind tunnel test. The spanwise coherence function often involves several narrow peaks due to the signature turbulence effect in the high reduced frequency zone. The spanwise coherence function is related to the spanwise separation distance and the spanwise integral length scales, and the signature turbulence effect is related to the deck-width-related reduced frequency.

• Journal of the Korean Society of Costume
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• v.60 no.5
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• pp.35-50
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• 2010

The purpose of this study was to know how helmet and armor was reinterpreted in historical play by considering general concept and type of old helmet and armor from the aspect of costume history and comparing the helmet and armor types of TV historical plays, Yeongaesomun and Taewangsasingi, whose historical backgrounds were based on the age of Goguryeo. The helmet and armor type shown in Yeongaesomun was reinterpreted as the one, which is close to historical investigation, by reappearing lamellar armor and jongjangpanju(helmet made of slim, long plate) shown in Goguryeo wall painting. The helmet and armor type shown in Taewangsasingi expresses fantastic helmet and armor by adding fantastic factor regardless of historical investigation. The study result reveals that there are several common characteristic factors between the helmet and armors of two historical plays. First, there was a classification in the display of character and story. The helmet and armor type shown in Yeongaesomun classified color and detail design depending on lamellar armor or character. In Taewangsasingi, the helmet and armor was manufactured depending on character's nature and the chain armors, which are lighter than existing helmet and armors, were usual. Second, they escaped from the historical investigation about traditional helmet and armor. In Yeongaesomun, myeonggwangae(a type of armor), which might be popular, was not expressed and Taewangsasingi is free from an imperative idea of historical investigation by manufacturing helmet and armor referring to that of ancient Rome age. The modern sense was reflected to increase dramatic effect. The helmet and armor of Yeongaesomun provides modern feeling by using stainless steel material and modern color arrangement and that of Taewangsasingi is designed in modern, splendid way as it aimed at game development from the planning step.

• International Journal of Costume and Fashion
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• v.8 no.1
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• pp.36-52
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• 2008

Writer Hong Myung-hee, author of the novel Im Kkeok Jeong, provided an excellent description of the costume customs of the Chosun era, based on an understanding of various historical texts and literature by practical science proponents, and experience gained from the Hong household of Pungsan, a noble family of high standing during the Chosun dynasty. However, there is a tendency towards descriptions of late Chosun era customs, rather than 16th century customs, with the intent of heightening the image of what most people felt to represent Chosun and its prestige, thereby generating greater reader sympathy. Therefore, information on the costume customs of the novel 1m Kkeok Jeong is analyzed and re-formed to fit with the temporal setting of the 16th century. By providing data to aid visual understanding and re-creation, the intent is to accept it as material for the rumination of our ancestors and their lifestyles in the 16th century. The novel provides a good description of Chosun economic customs, in which cotton and hemp were used not only as fabric for clothes, but also as currency. The trade value of cotton drapery or hemp drapery with dimensions of 5 strand density at a length of 35 ja per roll was designated as 5 mal (about 90 liters) of rice by national law, but the actual value varied depending on the production of rice. Also, it is possible to confirm the existence of sang po with dimensions of 3 strand density at a length of 30 ja per roll, or 2 strand density seochongdae cotton, which was used only as currency due to the rough quality. Characteristics of the Chosun dynasty, a class-based society, are described through distinctions of attire. The writer's intent regarding the symbolic nature of attire reflecting social position, a characteristic of the entire Chosun period, is analyzed with the presentation of visual material.

• The Research Journal of the Costume Culture
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• v.13 no.5 s.58
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• pp.790-803
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• 2005

This study purposes to examine the background of the sexual concept and femininity, masculinity and gender role in the fields of social psychology and cultural anthropology and investigate the traditional gender role and the fashion's changes according to its role and the examples of the masculinity and femininity expressed in the contemporary fashion and finally analyze the gender identity expressed in fashion. The image changes which appeared in the modern fashion can be considered to be Masculine Look, Garconne Look, Feminine Look, Unisex Look, Androgynous Look and Genderless Look. The Garconne Look caused lots of changes to masculinity in the 1920's along with the changes of femininity. With the effect of feminism, many females wore clothing which had been thought as male's clothing by the appearance of Masculine Look. The major formation reason of Unisex Look can be regarded as the attitude change of the society toward to females and a meaning which doesn't want the differences of the distinction of gender to appear any longer as a characteristic external factor is implied. Androgynous Look which appeared in the 1980's means the integration of femininity and masculinity which is the same meaning with 'androgyny' in itself, Not denying its gender characteristics individually, the Androgynous Look means that women aim at the masculine image in men's clothing or men do at the feminine image in women's clothing. Genderless Look can be considered to a look with a notion to wear clothing freely even in fashion transcending the border of masculinity and femininity differentiated socially and culturally.

• Journal of The Korean Association of Information Education
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• v.6 no.3
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• pp.266-278
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• 2002

The purpose of this study is to help cultivating Children's sensibility through the development of typing program which shows vocabulary of sensibility. The characteristic of this typing education program is designed to finish the game when the children get the certain point by typing the words on the screen(from the top to the bottom) within the limit of time. For examples, adjectives in the Korean dictionary, the words of modern & traditional children's songs, imitative words and echoic words through this game, the children are fully aware of the meaningful words without realizing it. Through this game, the children are fully a ware of the meaningful words without recognizing it. After application of this typing education program children were fully aware of meaningful words more than meaningless words. After examining the survey of children we could discover that this typing program help cultivating children's sensibility.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.8
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• pp.1780-1784
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• 2015

Traditional IP routing, see only the Destination Address When Forwarding Layer 3 routing and exchange information and Destination-Based Routing Lookup is required for all Hop. Thus, all routers Full Internet routing information, the route information of more than about 120,000 may require. Therefore, the router configuration, which can be dispersed in the environment, the traffic load is required in accordance with this congestion. In this study, a unique characteristic of the Internet in the environment of an existing network Best Effect for QoS guarantee and hardware high speed switching of large multimedia data transmitted using a Labeling for forwarding a packet environment configuration is required. Video Stream Broadcast Transport Labeling rather than in much of the higher performance of the multi-step policy to most of the Video Stream Packet deulim was fixed to Labeling Header Format proposes a method of applying an effective QoS policy to a more simplified policy.