• 한국의상디자인학회지
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• 제10권1호
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• pp.135-144
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• 2008

The reason that we are familiar with fashion from the 1950s is because of the work such as New Look done by a french fashion designer, Christian Dior who had taken on an almost mythical significance by his name. Moreover, in the sense of popularity, the appearance of Marilyn Monroe and Audrey Hepburn, two typical Hollywood actresses who each has directly-opposed image, is the symbol of youthful America of the 1950s and represents the remarkable start of the American fashion. Still, these days designers and mass medias recall the fashion from the 50s remaking and parodying it to suit public's taste. Being due to the World War II, Europe suffered not only the loss of its national tradition and reputation but also got a fatal blow politically and economically. On the other hand, the United States of America occupied a primary position in the world and outstandingly became the most powerful country. The American fashion of the 1950s represents youth and newness and rejects outdated and outmoded style. In this period, appears the indication which announces previously the youth culture. Poodle skirt is the fashion item that acquired popularity among young american women and girls in the late 1950s. In effect, it is the fashion as American as apple pie. A costly A-line skirt had been transformed into a cheap felt skirt. Instead of a real poodle dog which was carried by French women like an accessory, they embroidered a poodle dog on the lower edge of their skirt. As deriding the snobbish gait, they swayed themselves frantically to the rhythm of Rock n' Roll which swept those days. This was an attitude of young Americans against the existing trend of Europe. Poodle skirt showed the free spirit and intention of young people unbound to custom and established vogue. In addition, in the aspect of comprising the American spirit of independent, pioneer, and subjective American people, it goes beyond the bounds of common concept of fad. Poodle skirt is an unique symbol of the 1950s' American fashion which prognosticates the advent of the United States and the success in modern fashion world which was changing after 1950s.

• 천문학논총
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• 제15권spc1호
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• pp.103-112
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• 2000

Symbiotic stars are known as binary systems of a giant with heavy mass loss and a white dwarf accompanied by an emission nebula. They often show bipolar nebulae, and are believed to form an accretion disk around the white dwarf component by attracting the slow but heavy stellar wind around the giant companion. However, the existence and physical properties of the accretion disk in these systems still remain controversial. Unique to the spectra of symbiotic stars is the existence of the symbiotic bands around $6830{\AA}$ and $7088{\AA}$, which have been identified by Schmid (1989) as the Raman scattered features of the O VI $1032{\AA}$ and $1038{\AA}$ doublet by atomic hydrogen. Due to the incoherency of the Raman scattering, these features have very broad profiles and they are also strongly polarized. In the accretion disk emission model, it is expected that the Raman features are polarized perpendicular to the binary axis and show multiple peak structures in the profile, because the neutral scatterers located near the giant component views the accretion disk in the edge-on direction. Assuming the presence of scattering regions outflowing in the polar directions, we may explain the additional red wing or red peak structure, which is polarized parallel to the binary axis. We argue that in the accretion disk emission model it is predicted that the profile of the Raman feature around $6830{\AA}$ is different from the profile of the $7088{\AA}$ because the O VI line optical depth varies locally around the white dwarf component. We conclude that the Raman scattered features are an important tool to investigate the physical conditions and geometrical configuration of the accretion disk in a symbiotic star.

• 대한치과보철학회지
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• 제36권6호
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• pp.888-899
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• 1998

In-Ceram system is one of contemporary esthetic all ceramic restorations and has relatively high flexural strength. The purpose of this study was to evaluate the marginal fidelity according to type of resin cement and measuring position, and to evaluate fracture strength according to type of resin cement. In this study, twenty seven In-Ceram crowns were fabricated on the metal master die of prepared maxillary right central incisor and devided into three groups. All specimens were cemented with Panavia 21 (group PV), Super-bond (group SB) and Lute-it (group LI) on the metal master die. After cementation, specimens were measured marginal gap between the margin of the In-Ceram crown and the finishing line of metal master die by using a stereomicroscope (SZ-ST, Olympus, Japan). Marginal gaps were recorded at the labial, lingual, mesial and distal measuring points on the metal master die. For the mesurement of fracture strength, lingual surfaces of cemented specimens were loaded at a distance of 1mm from incisal edge by using the Autograph S-2000 (Shimadzu, Japan). The results of marginal fidelity and fracture strength were statistically analyzed with the SPSS version 8.0 programs. The results of this study were as follows: 1. In comparison of marginal fidelity according to the measuring points, there was no significant difference. 2. The marginal fidelity according to the type of resin cement was decreased in order of group $LI\;(63.75{\mu}m),\;SB\;(77.78{\mu}m),\;PV\;(86.53{\mu}m)$, and there was significant difference between group LI and PV (p<0.05). 3. The fracture strength according to the type of resin cement was showed descending order of group $LI\;(60.00kg/cm^2),\;SB\;(56.80kg/cm^2),\;PV\;(56.11kg/m^2)$, but there was no significant difference.

• 전기학회논문지
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• 제65권1호
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• pp.31-39
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• 2016

Power system engineers use power systems solution programs such as PSS/E, DSATool, Power World simulators for power system analysis. In this reason, KEPCO has begun to develop independent power system program, KW-PSS(KEPCO World Power system Solution) since 2002 and KW-PSS ver2.0 development was completed in 2011. However, it did not have much better functions compared with other programs. Therefore, we focused on the development of the practical and specialized functions. Consequently, PAZ(Power system AnalyZer) ver3.0 has been developed and it realized a differentiation than previous version. In other words, previous version focused on the basic function of power system analysis, PAZ ver3.0 has implemented many automated functions for power system operators were driven maximize operational efficiency. The unique feature of the implementation is as follows : Automated check for exceeding the breaker capacity, Scheduled outage automation, Control-file wizard for various voltage stability analysis, Scenario-based multiple transient stability analysis and Auto calculation of transmission line impedance. As shown in these functions, Those functions provide to use power system analysis easily by automation and simplification for power system engineers. We will secure national expertise through PAZ ver3.0. In addition it will be able to gain competitive edge through the steady development in the world market.

• 한국건설순환자원학회논문집
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• 제4권1호
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• pp.47-54
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• 2016

본 연구에서는 섬유 보강 콘크리트 바닥슬래브의 주요 설계하중인 선반하중과 이동하중에 의한 휨 내력을 평가하였다. 설계기준을 바탕으로 각 하중의 크기와 작용면적을 정의하였으며, 그 관계를 분석하였다. 단일하중에 의해서는 슬래브 경계면에서 휨 내력이 평가되어야 하며, 슬래브 두께 180mm 이상, 콘크리트 강도 35MPa 이상일 때는 최소 등가 휨강도비로써 휨 내력을 충분히 만족하였다. 조합하중에 의해서는 선반하중간의 조합이 가장 큰 등가 휨강도비를 요구하였으며, 선반하중과 이동하중의 조합은 선반하중간의 조합에 비해서는 작게 평가되었고, 단일 하중에 비해서는 크게 평가되었다. 본 연구결과 섬유 보강 콘크리트 바닥슬래브의 휨 설계는 하중 조합에 의한 내력 평가가 필요함을 확인하였다.

• 전자공학회논문지B
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• 제33B권12호
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• pp.71-83
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• 1996

This paper describes facial component detection and skew correction algorithm for face recognition. We use a priori knowledge and models about isolated regions to detect eye location from the face image captured in natural office environments. The relations between human face components are represented by several rules. We adopt an edge detection algorithm using sobel mask and 8-connected labelling algorith using array pointers. A labeled image has many isolated components. initially, the eye size rules are used. Eye size rules are not affected much by irregular input image conditions. Eye size rules size, and limited in the ratio between gorizontal and vertical sizes. By the eye size rule, 2 ~ 16 candidate eye components can be detected. Next, candidate eye parirs are verified by the information of location and shape, and one eye pair location is decided using face models about eye and eyebrow. Once we extract eye regions, we connect the center points of the two eyes and calculate the angle between them. Then we rotate the face to compensate for the angle so that the two eyes on a horizontal line. We tested 120 input images form 40 people, and achieved 91.7% success rate using eye size rules and face model. The main reasons of the 8.3% failure are due to components adjacent to eyes such as eyebrows. To detect facial components from the failed images, we are developing a mouth region processing module.

• 한국컴퓨터정보학회논문지
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• 제19권1호
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• pp.9-21
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• 2014

본 논문에서는 일반 사용자가 카메라로 사진을 촬영할 경우에 시선을 집중시키면서 안정적인 구도의 영상을 얻을 수 있는 자동 구도 제시기법을 제안한다. 일반 사용자는 대부분 사진의 구도에 대한 배경지식이 없이 사진을 촬영하고, 촬영된 사진은 피사체의 위치가 적절하지 않아 전문가들이 촬영한 안정적인 구도의 사진과 대조된다. 따라서 비전문가 사용자들에게 촬영 후 영상을 처리하는 방법이 아닌 촬영 시 안정적인 구도를 자동으로 제시해주는 방법을 제공한다. 제안하는 방법은 Saliency Map, Image Segmentation, 윤곽선 검출 등을 통해 피사체를 분석하고 피사체를 안정적인 구도가 구성될 수 있는 위치에 황금분할 가이드라인과 함께 출력한다. 실험결과를 통해 피사체를 분석하고 윤곽선을 검출하여 사용자에게 자동으로 구도가 제시되는 것을 알 수 있다.

• 한국세라믹학회지
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• 제39권8호
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• pp.795-800
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• 2002

융액인상법으로 질소분위기 하에서 $Yb^{3+}$ 이온이 20at% 고용된 $Yb:YCa_4O(BO_3)_3$ (Yb:YCOB) 단결정을 이리듐 도가니를 사용하여 성장시켰다. 양질의 단결정을 성장시키기 위한 인상속도와 회전속도는 각각 1.5∼2 mm/h와 10∼20 rpm이었다. 분광물성 측정 결과, 흡수단이 236 nm에 있었으며, 전형적인 $Yb^{3+}$ 이온의 흡수 스펙트럼이 관찰되었다. Yb:YCOB의 열팽창계수는 320∼650 K의 측정범위에서 결정학적 축 a, b 그리고 c에 대해 12.1×$10^{-6}$ /K, 5.9${\times}10^{-6}$/K, 12.9${\times}10^{-6}$이었다. 비열은 330 K에서 0.162 $cal/g{\cdot}K$이었다.

• 한국전자파학회논문지
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• 제9권6호
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• pp.813-823
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• 1998

본 논문은 비분리형 비등방성 완전정합충(UAPML)을 이용하여 이동통신용 원형편파 등각 마이크로스트립 패치 안테나를 해석하였다 또한 3차원 U따까1L에 대한 모서리 및 모퉁이 부분에 대하여 특별히 다루었다. 특히 동축 여기선을 갖는 마이크로스트립 패치 안테나를 해석하기 위해서 Mur의 1차 흡수경계조건을 혼합 적용하였다 결과적으로 본 논문은 UAPML법이 모서리 및 모퉁이 부분에서 수렴함은 물론 Mur의 1차 흡수 경계조건과 혼합하여 홈수경계조건으로서 충분히 사용 가능함을 제시한다. 수치해석 결과는 이동통신 대역인 L밴드 및 C 밴드에서 중심주파수 1.575 GHz, 1.778 GHz 그리고 4.8 GHz를 갖는 단일 및 병렬 패치에 대한 전자장의 $E_z$및 $H\chi$에 대한 시간응답, 동축선의 입력임피던스 및 마이크로 스트립 패치의 복사특성을 해석 하였다 본 논문의 해석 결과는 2차 분산 경계조건(SDBC) Mur의 1차 흡수경계조건을 혼합한 수치해석 방법 그리고 순수 Mur의 1차 흡수경계조건과 비교하였다. 따라서 본 논문에서 제시된 해석방법이 합당함을 입 증할 수 있다.

• 복식
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• 제62권6호
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• pp.218-230
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• 2012

The 25 pieces of women's jogori worn by ChangRyung Jo's family(1721~1742) that are preserved in Yeoju Museum, Gyeounggi Province, Korea were examined in this study. The aim of this study is to analyze women's jogori that were excavated from the grave of Changryung Jo's family, and to characterize women's costumes around the middle $18^{th}$ Century. The size of the jogori was divided into two groups. The garment length of the first group ranged from 31cm to 34cm and the bigger size ranged from 36.5cm to 40cm. The number of jogori in the group with the smaller size was twenty-five pieces and five pieces for the group with the bigger size. Changryung Jo's jogori was composed of two pieces of padded jogori, four pieces of quilted jogori and nineteen pieces of double layer jogori. Even though the direction of the margin located on back seemed point toward the right hand side, the gorum, the string for the tie, and the Sup, the outer gore of the jogori located on the other side of the margin had no pattern of direction. The line of jogori from the armhole gets narrower toward the edge of sleeves which could be recognized as a typical pattern of the middle $18^{th}$ Century jugori. The bigger group of jogori seemed to be worn by people other than ChangRyung Jo's relatives and used to be a gifts to aid in funerals. Major characteristics of jogori is could be categorized into the Dangko Mokpan collar jogori and Samhaejang jogori. The results of this study helps set the relative dating for the women's jogori of middle $18^{th}$ Century where not much excavations have been made.