• 한국실내디자인학회논문집
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• 제17권2호
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• pp.47-55
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• 2008

This paper attempted to analyze the Sainte-Chapelle(1242-48) in Paris in terms of Gottfried Semper's theory of four elements. For this aim, this study was divided into two parts: the first part regarding Semper's theory, which included not only the theories of four elements and four technical arts but also the concepts of the two types of primitive dwellings; the second part regarding the Sainte-Chapelle, composed of the overall study and the characteristics of the building and finally the analysis of it in terms of Semper's theory. The Sainte-Chapelle was regarded as a real example of Semper's four elements, in that the building was composed of a sacred altar containing Christ's earthly relics, stereotomic bases made of stone, a tectonic structure featuring linearity, and textile stained glass as an elaborate enclosure. While the bases and the structure were employed as serving elements, the altar and the stained glass played critical roles to make a whole space immaterial and monumental. These two elements served to reveal not only biblical typology but also the religious and political vision of Saint Louis to establish Paris is as a new Holy Land.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제16권2호
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• pp.122-129
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• 1994

This study was undertaken to determine whether the addition of calcium sulfate to toothash material (Toothash : plaster of paris=2 : 1) would improve its stabilizing property without adversely affecting its osteoconduction. The radiographic and histologic examinations of bone response of this composite material was performed after 1-, 3-, 5-, 8-, and 12-week implantation in calvaria of rats. No sign of extensive inflammatory response was detected. No movement could be observed with this composite material. Creeping substitution was observed in the surgical site. The direct union between toothash and growing bone after 12 weeks of implantation was observed in the defect margin. We could observe this composite implant material is resorbing slowly as time is over.

• Nuclear Engineering and Technology
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• 제49권4호
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• pp.675-691
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• 2017

Jets in cross flow are of fundamental industrial importance and play an important role in validating turbulence models. Two jet configurations related to thermal fatigue phenomena are investigated: ${\bullet}$ T-junction of circular tubes where a heated jet discharges into a cold main flow and ${\bullet}$ Rectangular jet marked by a scalar discharging into a main flow in a rectangular channel. The T-junction configuration is a classical test case for thermal fatigue phenomena. The Vattenfall T-junction experiment was already subject of an OECD/NEA benchmark. A LES modelling and calculation strategy is developed and validated on this data. The rectangular-jet configuration is important for basic physical understanding and modelling and has been analyzed experimentally at CEA. The experimental work was focused on turbulent mixing between a slightly heated rectangular jet which is injected perpendicularly into the cold main flow of a rectangular channel. These experiments are analyzed for the first time with LES. The overall results show a good agreement between the experimental data and the CFD calculation. Mean values of velocity and temperature are well captured by both RANS calculation and LES. The range of critical frequencies and their amplitudes, however, are only captured by LES.

• 한국의상디자인학회지
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• 제2권2호
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• pp.5-17
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• 2000

This study about the Zoot Style is the first part of a series of research, which is to examine various subcultural styles in 1900s. The main concern of this research is to investigate the origin of a style, the way how it developed, and the reason it appealed to people. Subculture is a marginallized culture which the subordinal groups in the social structure developed as a means of reaction against the dominant groups of a society. The clothes and decorations of these groups can be regarded as the central expressions of exclusiveness, loyalty and identities for their groups. In 1990s, the distinction between the subcultural style and high fashion tend to be blurred, because it has gained more influence on the high fashion. Zoot Suit, adopted and diffused by Cap Calloway in 1940s, is the code of a subculture formed by a special race, class, space, gender, and generation identities. It develops as a reaction, and consequently reflects the struggles against the dominant culture: it is to refuse, appreciate and ridicule the dominant style. The Zoot Style had a great influence both in Paris and Cuba: the Zazous Style in Paris and the Caribbean Style of Cuba are the subcultural styles branched from the Zoot Style.

• 환경정책연구
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• 제14권3호
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• pp.119-136
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• 2015

유엔기후변화협약 협상에서 재정 분야는 개도국 지원의 장단기 목표를 수립하고, GCF를 설립하였으며, 상설위원회를 구성하는 등 큰 성과를 나타냈다. 이로서 협약 재정메커니즘의 실질적인 작동을 위한 체제는 갖춰진 것으로 볼 수 있다. 신기후체제 협상에서는 선진국의 역사적 책임을 강조하는 개도국과 변화된 상황에 부합하는 개도국의 행동을 주장하는 선진국의 상반된 입장이 어떻게 절충될 것인지가 핵심 쟁점이다. 특히 합의 도출에 있어 이행수단으로써 기후재원의 역할에 대한 기대가 고조되고 있다. 본고에서는 협약 채택 이후 지난 리마 당사국총회(COP20)까지 재정지원 관련 논의동향을 정리하고 신기후체제 합의를 앞두고 기후재원 분야의 주요 쟁점과 과제를 제시한다.

• Journal of Communications and Networks
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• 제4권3호
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• pp.221-229
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• 2002

Adaptability is the most promising feature to be applied in future robust multimedia applications. In this paper, we propose the Direct Algorithm to improve the degree of satisfaction at heterogeneous receivers in multi-layered multicast video environments. The algorithm relies on a mechanism that dynamically controls the rates of the video layers and is based on feedback control packets sent by the receivers. The algorithm also addresses scalability issues by implementing a merging procedure at intermediate nodes in order to avoid packet implosion at the source in the case of large multicast groups. The proposed scheme is optimized to achieve high global video quality and reduced bandwidth requirements. We also propose the Direct Algorithm with a virtual number of layers. The virtual layering scheme induces intermediate nodes to keep extra states of the multicast session, which reduces the video degradation for all the receivers. The results show that the proposed scheme leads to improved global video quality at heterogeneous receivers with no cost of extra bandwidth.

• 농촌계획
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• 제26권3호
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• pp.25-38
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• 2020

The purpose of this study is constructing a regional-level crop acreage choice model incorporating the impacts of producer risk aversion, and applying the constructed model to the Korean policy that promotes rice paddy conversion into non-rice crop fields. The study adopts the approach of Paris (2018) which estimates the absolute risk aversion coefficient inside of a positive mathematical programming model. A panel data set of 143 cities/counties is used for the empirical study where agricultural land in each region is allocated to 8 crops. Our estimated absolute risk aversion coefficients are smaller than those of Paris (2018), but are a little bit larger than those of the existing Korea studies based on survey or econometric methods. We found that there are close relationships among the estimated risk aversion, regional characteristics, and farming patterns. We also found that incorporating the estimated risk attitudes results in substantial differences in the impacts of the rice paddy conversion policy.

• Nuclear Engineering and Technology
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• 제49권6호
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• pp.1269-1286
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• 2017

This paper presents a newly developed resonance self-shielding method based on Tone's method in $APOLLO3^{(R)}$ for fast and thermal reactor calculations. The new method is based on simplified models, the narrow resonance approximation for the slowing down source and Tone's approximation for group collision probability matrix. It utilizes mathematical probability tables as quadrature formulas in calculating effective cross-sections. Numerical results for the ZPPR drawer calculations in 1,968 groups show that, in the case of the double-column fuel drawer, Tone's method gives equivalent precision to the subgroup method while markedly reducing the total number of collision probability matrix calculations and hence the central processing unit time. In the case of a single-column fuel drawer with the presence of a uranium metal material, Tone's method obtains less precise results than those of the subgroup method due to less precise heterogeneous-homogeneous equivalence. The same options are also applied to PWR UOX, MOX, and Gd cells using the SHEM 361-group library, with the objective of analyzing whether this energy mesh might be suitable for the application of this methodology to thermal systems. The numerical results show that comparable precision is reached with both Tone's and the subgroup methods, with the satisfactory representation of intrapellet spatial effects.

• Nuclear Engineering and Technology
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• 제49권6호
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• pp.1259-1268
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• 2017

The alpha eigenvalue problem in multigroup neutron diffusion is studied with particular attention to the theoretical analysis of the model. Contrary to previous literature results, the existence of eigenvalue and eigenflux clustering is investigated here without the simplification of a unique fissile isotope or a single emission spectrum. A discussion about the negative decay constants of the neutron precursors concentrations as potential eigenvalues is provided. An in-hour equation is derived by a perturbation approach recurring to the steady state adjoint and direct eigenvalue problems of the effective multiplication factor and is used to suggest proper detection criteria of flux clustering. In spite of the prior work, the in-hour equation results give a necessary and sufficient condition for the existence of the eigenvalue-eigenvector pair. A simplified asymptotic analysis is used to predict bands of accumulation of eigenvalues close to the negative decay constants of the precursors concentrations. The resolution of the problem in one-dimensional heterogeneous problems shows numerical evidence of the predicted clustering occurrences and also confirms previous theoretical analysis and numerical results.

• Journal of Welding and Joining
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• 제7권1호
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• pp.51-58
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• 1989

The purpose of this study is to investigate the corrosion fatigue crack growth of PWTHT specimens(SS41, SM53B) which are the compact tension ones extracted from the muti-passed weldment and weld block. The corrosion fatigue test was done at the cyclic stress frequency of 3Hz in 3.5% NaCl solution. The results are as follows. 1. Corrosion fatigue crack growth of as-weld was slower than that of base metal. 2. In the low .DELTA.K region, the effect of corrosion environment on crack growth was obvious. However, the corrosion effect decreased with the .DELTA.K slowly. 3. The behaviour of fatigue and corrosion fatigue crack growth depended on the material, heat treatment as well as experimental conditions. 4. Corrosion fatigue crack growth of PWHT specimens(SS41, SM53B) subjected to 1/4hr, was increased compared with that of as-weld. 5. There was a tendency that the exponent value(m) obtained in 3.5% NaCl solution was decreased in comparison with that in air, and the material constant(C)was increased for Paris equation, da/dN=C((.DELTA.K))$^{m}$ , compared with that in air considerably.