• Current Industrial and Technological Trends in Aerospace
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• v.8 no.2
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• pp.3-14
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• 2010

In this paper, I will introduce brief history and industrial structure of japanese aircraft industry, and analyze the reasons of recent restructuring of it. Even though japanese aircraft industry is known as having a high level technologies, it has faced serious problems since 1990's, because of the end of cold war, economic shrinking, fast development of new entrants such as China, and political relationship of her most important ally, U.S.A. But after 2000, realizing situation will be worse if nothing changed, japan started restructuring of aircraft industry. Restructuring has been carried out not only in the industry, but also in the whole national decision making system including government organization such as METI and R&D organization, JAXA. Almost at the same time, a few new plans, including MRJ Project, were built to revitalize the aircraft industry. Watching the process of these tries might be necessary to understand, analyze, and anticipate japan and world's future aircraft industry, which this paper is aiming at.

• Journal of Korean Medical classics
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• v.20 no.2
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• pp.125-135
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• 2007

Eum Syndrom include symptoms which is because by the cold thingsand by the infection of SamEum of TaeEum, SoEum, GualEum in Treatise On Exogenous Febrile Diseases(傷寒論). After Wang HoGo, many medical people had proceed the research of Eum Syndrom, but recently, we have almost never or no nothing research about that. So, I want to make modern base of Eum syndrom, and researched mainly for the "YinZhengLueLi". That can be summarized like below. Eum Syndrom shows firstly red face, tremor, waist-and-leg heaviness, lastly body heaviness, fatigue, narcolepsy, congestion of the pupils because of from exogenous attack of wind-cold, impairment of spleen due to Cold things, and dew and mist and rain and damp's invation by mouth and nose, greedy of sexual desire, So, in the diagnosis of Eum Syndrom, we have to look over precisely the color and pulse, especially, by pulse. We can know that, he used the prescription which are have heating kidney function, Byuklyuksan, Jungyangsan, Huahamsan, Huiyangdan, Baneumdan etc, and the prescription which are have strengthening spleen and kidney, Bujasan, Yukgyesan, Bakchulsan etc. So, we can know that he was very interested in deficiency and cold of kidney's function. While, he newly made the prescriptions of Sinchultang, Bakchultang, Huanggitang, Jujunghuan, and he used various prescriptions.

• Journal of Environmental Science International
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• v.9 no.2
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• pp.125-129
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• 2000

As one of the fundamental survey to evaluate purification capacity of pollutants at the tidal flat sediments, we studied vertical environmental characteristics in three tidal flat sediments, Chunjangdae, Eueunri and Gyewhado. These are dissmilar to external feature in each other. The results of this study may be summarized as followed; As the results of particle analysis, Eueunri tidal flat fediment located in Keum river estuary consists of 98.98% as silt & clay, Chunjangdae tidal flat sediment located in SeocheonGun consists of 97.99% as sand. And Gyewhado tidal flat sediment located in Saemankeum in Saemankeum area consists area consists of 32.81% as silt & clay and 67.19% as sand. The concentration of organic pollutants(I.L., COD, POC, PON) in Eueunri tidal flat sediment which highly content of silt & clay were 3~4 times higher than others. The concentration of organic pollutants at each layer were slightly increase goes with deepen layer. The linear correlation between I.L. and COD, POC, PON were obtained. Correlation coefficients were in range of 0.821~0.940. Also the correlation between pH and COD, POC, PON were high(>r=0.9). Filteration rate in Chunjangdae tidal flat sediment was 0.01584cm/s as mean value, but the other were almost nothing filtered off.

• Proceedings of the KSR Conference
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• 2004.10a
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• pp.405-410
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• 2004

There are two types of noises in running the rail vehicle. The one is periodic by electric motors, dehumidifiers, and dusting machines. And the other is aperiodic squeal noise by the frictions between the wheels and the rail or the disks and pads. The periodic noises in rail vehicle have been reduced by changing DC motors to AC motors with silencers, and by improving the lubricants. However, almost nothing relating a periodic noise has been studied. In this paper, the experimental methods were applied to understand phenomena of the squeal noise, which was occurred by the friction variation due to aperiodic stick and slip with low repeatability in the process of dry friction of the disk and the pad when a rail vehicle was being braked. By the experimental acoustic test, it was found the specific frequencies relating the squeal noise. And by modal testing, it was measured the resonant frequencies in the disk and the pad-plate which were the components of the braking system, and in the whole braking system, and it was found the specific frequencies having the effects on the squeal noise.

• The Research Journal of the Costume Culture
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• v.23 no.2
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• pp.176-192
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• 2015

This work aims at analyzing the comparative feature about female flight attendant uniform designs of Korean and Asian region low cost carriers and providing some basic materials for development of these airline companies. As a research method, examinations were carried out on attendant's uniform both theoretically and empirically. Comparison of uniforms was made among the five Korean carriers and ten typical Asian carriers for empirical research. Results showed the followings. First, all Korean low cost carriers were characterized as formal style except Jin Air. Unlike this, Asian low cost carriers appeared as diverse including formal, semi formal, and casual styles with a uniquely differentiated image. Second, all carriers applied their own symbolic color to their uniform. Third, logo or symbol was adopted as a pattern on scarf in the two Korean companies but it didn't take effect practically. For those Asian carriers, embroidery was used on jacket, jumper and collar. They utilized even a merchandising character to put emphasis on airline image. Fourth, diverse petty items with a decorative effect were used in the case of Korean low cost carriers. In the changing period of uniform, nothing much was changed and remained almost the same as before. Those in the Asian region were characterized with the smallest number of items and the preclusion of decorative add-ons on uniform.

• Speech Sciences
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• v.8 no.4
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• pp.259-273
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• 2001

This study investigates the accentual realization of negation denying the presupposition of a previous utterance compared with that of a general negation. Specifically we study what types and positions of accent are realized in the speech of Korean speakers using English as a second language as well as English native speakers. Gussenhoven (1983) and Bolinger (1985, 1986) suggested that when presupposition of previous utterances is denied through negation, focal accent is assigned to empty (functional) words, rather than negative morphemes. The results of this study, however, show that negation sentences denying presupposition have accents not only on empty (functional) words but also on content words. Almost every English native speaker places an H* accent on the negative morphemes themselves (not, no, nothing, etc.) in general negation, as well as on the other lexical items-verbs and prepositions in our data-in negations denying presuppositions. On the other hand, Korean speakers hardly distinguish between the two kinds of negation sentences, unlike native speakers through accentual differences. Rather, they give accent an every content word, including the negative morphemes in both general negations and negations denying presuppositions. Therefore, the results of this study do not absolutely support the previous studies on the denial of presupposition.

• The Transactions of the Korean Institute of Electrical Engineers D
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• v.52 no.1
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• pp.51-54
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• 2003

The z-transform method is a basic mathematical tool in analyzing and designing digital signal processing systems for discrete input and output signals. There are may cases where the output signal is in the form of a discrete convolution sum of an input function and a designed digital processing algorithm function. It is well known that the z-transform of the convolution sum becomes the product of the two z-transforms of the input function and the digital processing function, whose proofs require the causality of the digital signal processing function in the almost all the available references. However, not all of the convolution sum functions are based on the causality. Many digital signal processing systems such as image processing system may depend not on the time information but on the spatial information, which has nothing to do with causality requirement. Thus, the application of the causality-based z-transform theorem on the convolution sum cannot be used without difficulty in this case. This paper proves the z-transform theorem on the discrete convolution sum without causality requirement, and make it possible for the theorem to be used in analysis and desing for any cases.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.389-392
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• 2008

Warning phase of disaster is a critical period in determining the likely survival of threatened citizens. Elderly requires special attention primarily because they tend to be uncompliant and less likely to cooperate with authorities. But there is much less research on how elderly respond to disaster warnings, while there is a strong consistent empirical literature on older citizen in the recovery periods of disaster. The purpose of this study is to examine coping behavior of elderly when they are at risk of disaster. Data were collected from 130 senior citizens aged over 60 who are residing in Pyungchang and Injae in Kangwon province which had damaged due to heavy rain in 2006. Perry & Lindell(1997)'s index, a series of six categories that represent coping behaviors which progressively approximate the action of evacuating was used : do nothing(1), check environmental cues for evidence of a threat(2), engage in threat-specific property protection(3), engage in protective action for personal safety(4), prepare to evacuate(5), evacuate the areas as instructed in the warning(6). Almost respondents(69.2%) chose the level 6(51.5%) and level 5(17.7%). This proves the elderly are not uncompliant or uncooperative population. Furthermore, this finding emphasizes the importance of public warning in case of disasters. And 13.8% of total respondent checked level 1 for their reaction.

• Journal of Technology Innovation
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• v.7 no.1
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• pp.1-13
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• 1999

In this article, we first present an inductive taxonomy of national R&D structures in terms of relative R&D flows among prime actors. The R&D structure of Korea, along with the Japanese one, turns out to be an ill-balanced one characterized by the dominant role of private sector, vis-a-vis the minimal share of public R&D. In nature, private R&D is sensitive to business cycle and the vulnerability of the Korean structure has been invisible under prosperity but now is disclosed under depression. This problem is nothing new and indeed has long been recognized by the Korean government but the prescription seemed almost impossible. Ironically, the current economic crisis of Korea renders an unexpected opportunity for structural reform. As private firms are cutting down R&D investment, the relative share of public sector becomes significant. A simulation predicts that balanced systems will be achieved in some years if public R&D budget is kept up. Although the contraction of private R&D is by no means desirable, it is the right time for the Korean government to expand public R&D. Public R&D should be considered not only a remedy for market-failure but also a shock-absorber against cyclic instability. This is why the balance between public R&D and private R&D is emphasized.

• The Journal of Korean Academic Society of Nursing Education
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• v.9 no.1
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• pp.155-162
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• 2003

The comparative study of the administration policy that the government and the local self-governing body have enforced to a handicapped child and the family, was made in South Korea and Japan. As data, I utilized brochures distributed to a handicapped child's guardian in the government publication, health center, and hospital of both countries and the homepage that each organization manages. With the investigation of (1) the handicapped child's present condition, population and entering-school situation, (2) the organization which can consult about a juvenile entering-school problem, (3) the public service with which the parents of handicapped child, or a handicapped child are provided and (4) the feedback surveys of (3)’s services, the followings were proved. In (1), the handicapped child's population and their school attendance are not be specified by the South Korea side. In (2), a private consultation organization is mainly opened and be hard to say that use is simple from the little of a kind. In (3), there is almost nothing than rehabilitation education as the administration policy, which is universally held for the handicapped child. Besides they cannot receive freely the education. In (4), it became clear not to carry out. The improvement from the direction of both hard and soft aspects - the institution of basic education for the handicapped child who lives in all areas and the equal opportunity to all children - is called for urgently.