• 복식문화연구
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• 제21권1호
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• pp.31-41
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• 2013

By researching Western equestrian clothing, this study investigated the process in which styles of menswear are introduced into women's sportswear. In addition to women's equestrian clothing shown in paintings and illustrations kept in overseas museums, this study also analyzed books addressing 200 years of Western dress style history, from the late $17^{th}$ century to the $19^{th}$ century. The analysis data present the design characteristics of women's equestrian clothing according to different periods. A total of 21 works were used as research data: two from periods prior to the $17^{th}$ century, three from the $17^{th}$ century, ten from the $18^{th}$ century, and six from the $19^{th}$ century. The research results show that items of trendy menswear were commonly used in women's equestrian clothing during the late $17^{th}$ century - to be specific, in all forms of clothing worn on the upper body, including coat and cravat, tricomhat, and accessories. Women's equestrian clothing after the $18^{th}$ century took the form of menswear. However, the uniform was also generally worn with a fitted, tailored redingote on top of the robe, along with pants. In the $19^{th}$ century, women's equestrian clothing became longer in length, like men's styles. The uniform gradually lost volume, and the jacket became shorter and narrower. In addition, the drawers were replaced with pants that came down to the ankles, which were similar to men's trousers. Breeches also became knee - length, thus following the style of menswear. These results show that women's equestrian clothing, worn during horseback riding, a sport previously enjoyed by Western aristocrats, were similar to what men wore. Also, in contrast to the distinct differences seen between men's and women's daily clothing, the equestrian uniforms of women showed a tendency to follow the clothing style of men.

• 대한기계학회논문집B
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• 제39권7호
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• pp.625-631
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• 2015

이번 연구는 패킹 모듈로 채워진 축열조의 방열 성능을 수치해석 하였다. 해석에는 PCM의 상변화 현상을 계산하기 위해 엔탈피-공극률 방법을 이용하였다. 이 방법을 통해서 방열 시 축열조 상부로부터 열전달유체가 흐를 때 모듈에서의 녹는 현상을 계산하였다. 축열조 디자인에 모듈 배치, 모듈 수 등의 다양한 인자가 있지만, 본 해석에서는 유량의 변화에 따라 나타나는 축열조 출구온도, 전체 PCM의 시간에 따른 녹은 양 및 축열밀도를 확인하였다. 결과적으로 유량이 증가할수록 출구온도가 높게 형성되었으며, 전체 PCM이 녹는데 필요한 시간이 짧아지고 축열 밀도 역시 증가하여 목표치의 93% 수준에 도달하는 것으로 나타났다.

• 마이크로전자및패키징학회지
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• 제23권4호
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• pp.43-48
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• 2016

3-Dimensional System in Package (3-D SiP) structure (Amkor calls it mPossum-molded Possum) using double side Surface Mount Technology (SMT) and double side molding was evaluated in order to achieve small/thin form factor as well as good functionality by integration and double side layout. As the new platform on laminate substrate basis, molding process was challenge in mold flow balance at top and bottom side and package warpage control over the overall assembly process. There were two types of different molding process evaluated with 1) 1-step molding which was done at both side at the same time and 2) 2-step molding which was done at the conventional molding process twice. Mold simulation helped to narrow down the material selections and parameters available before actual sample build. There were many challenges for this first trial in design/ parameter and material types but optimized them to enable this structure.

• Steel and Composite Structures
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• 제7권2호
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• pp.87-103
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• 2007

This paper presents some of the results from an experimental research project on the behavior of extended end-plate connections subjected to moment conducted at the Structural Laboratory of Jordan University of Science and Technology. Since the connection behavior affects the structural frame response, it must be included in the global analysis and design. In this study, the behavior of six full-scale stiffened and unstiffened cantilever connections of HEA- and IPE-sections has been investigated. Eight high strength bolts were used to connect the extended end-plate to the column flange in each case. Strain gauges were installed inside each of the top six bolts in order to obtain experimentally the actual tension force induced within each bolt. Then the connection behavior is characterized by the tension force in the bolt, extended end-plate behavior, moment-rotation relation, and beam and column strains. Some or all of these characteristics are used by many Standards; therefore, it is essential to predict the global behavior of column-beam connections by their geometrical and mechanical properties. The experimental test results are compared with two theoretical (equal distribution and linear distribution) approaches in order to assess the capabilities and accuracy of the theoretical models. A simple model of the joint is established and the essential parameters to predict its strength and deformational behavior are determined. The equal distribution method reasonably determined the tension forces in the upper two bolts while the linear distribution method underestimated them. The deformation behavior of the tested connections was characterized by separation of the column-flange from the extended end-plate almost down to the level of the upper two bolts of the lower group and below this level the two parts remained in full contact. The neutral axis of the deformed joint is reasonably assumed to pass very close to the line joining the upper two bolts of the lower group. Smooth monotonic moment-rotation relations for the all tested frames were observed.

• 한국통신학회논문지
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• 제29권5A호
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• pp.554-565
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• 2004

본 논문에서는 단일 클락 사이클과 다중 클락 사이클에 수행되는 여러 가산기를 구현하고 area와 time을 비교한다. 가산기의 크기를 64, 128, 256-비트로 다양화 시키면서, 특히 하이브리드 구조의 가산기는 소그룹을 4, 8, 16-비트로 나누어서 group / ungroup으로 합성을 하여 비교하였다. 제안된 가산기들은 Verilog-HDL을 이용하여 하향식 설계 방법으로 구현되었다. Cadence의 Verilog-XL.을 이용하여 설계된 가산기와 behavioral model을 이용한 가산기의 출력이 일치하는지를 비교하여 검증하였다. 검증된 모델은 삼성 0.35um 3.3(V) CMOS standard cell 라이브러리를 이용하여 합성되었으며, 최악 조건 2.7(V), 85($^{\circ}C$)에서 동작하였다. 스마트 카드 IC의 Crypto-Processor에 사용할 수 있는 최적화된 가산기는 64-비트를 기준으로 할 때, group으로 합성된 16-비트 캐리 예측 가산기를 기반으로 하는 리플 캐리 가산기(RCA_CLA)이다. 이 가산기는 198(MHz)의 속도로 동작하며, 게이트 수는 nand2 게이트 기준으로 약 967개이다.

• 한국통신학회논문지
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• 제28권2A호
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• pp.80-85
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• 2003

본 논문에서는 GF(2m) 상에서의 ECC 암호화 알고리즘을 지원하기 위한 GFAU(Galois Field Arithmetic Unit)의 구조를 제안한다. GFAU는 GF(2m)상에서의 덧셈, 곱셈, 나눗셈을 수행하며 동시에 두 개의 덧셈이나 두 개의 곱셈, 또는 하나의 덧셈과 하나의 곱셈을 동시에 처리할 수 있는 능력을 가지고 있다. 기본 구조는 변형된 유클리드 알고리즘의 나눗셈기를 기반으로 제안되었으며, 이 기본구조에 곱셈기 및 덧셈기의 기능을 추가하여 제어부와 함께 구현되었다. GF(2193)을 위한 GFAU는 Verilog-HDL를 이용하여 하향식설계방식으로 구현되었고 C-언어로 작성된 사이클 단위 시뮬레이터를 이용하여 개선되고 검증되었다. 검증된 모델은 삼성 0.35um, 3.3V CMOS 표준 셀 라이브러리로 합성되었으며 최악조건 3.0V, 85$^{\circ}C$ 에서 104.7MHz의 주파수에서 동작하며, 전체 게이트 수는 약 25,889이다.

• 복식
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• 제63권6호
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• pp.56-68
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• 2013

A purpose of this study is to do fundamental research of construction of coat patterns in the Daehan Empire in order to make replicas of the costumes. This study is composed of literature research, investigation of artifacts, and experiment of pattern making. The results of this study are as follows. First, even if the 15th Court Dress Rules regulated color, fabric, number of flower, width of braid, and size of button, there was no regulation regarding the shape of the coat. The analysis of the photos in those periods shows that the style of the tailcoat was different from that of today in the length of the front, the shape of breast and collar. Second, six artifacts in the collection showed that the shoulder line and the sideline were located on the further rear side than the current tailcoat. This can be confirmed in the western and Japanese pattern book, and especially the pattern drafting method in the books published in Japan in 1900s is different from current one in setting base lines of front bodice and back bodice. As a result, based on several experiments, this study proposes how to make coat patterns. The shoulder line, the sideline, and the princess line should be located in the back of the dress similar to the shape of swallowtail coats of 1900s. The front bodice should be constructed without the composition line in order to add embroidery on it. The collar, which shape looks like long half moon, should form V-shape neckline in the front breast when adjusting dress. The sleeves should be constructed top and down, and it should curve more than the modern design.

• 대한불안의학회지
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• 제12권1호
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• pp.47-55
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• 2016

30% of patients with panic disorder (PD) show treatment-resistant and chronic waxing and waning course. Therefore, adequate treatment strategies for PD by evidence based pharmacotherapy and combined cognitive behavioral therapy (CBT) are recommended. Regarding how and why CBT for PD works, three hypotheses include the cognitive theory, anxiety control theory, and behavioral theory were discussed. The recent findings that the altered activation in frontal lobe is normalized after CBT, suggest a reduction of an altered top-down fear processing in the neural correlates of CBT in PD. In order to improve accessibility to CBT, brief CBT and internet based CBT for PD were suggested. Despite limitations of sample sizes and study design, most of studies suggest that brief CBT is more effective than control conditions, and even as equally effective as standard CBT. The evidences suggest that internet based CBT may not be significantly different from face-to-face CBT in reducing anxiety. Several advances within the field of third-wave CBT for PD have led to the development of new techniques based on mindfulness, such as mindfulness-based cognitive therapy and acceptance and commitment therapy. Based on Korean algorithm project for panic disorder, especially the psychological education and cognitive reconstruction components were recommended in CBT with PD.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2007년도 동계학술발표대회 논문집
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• pp.305-309
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• 2007

FTL(Fuel Test Loop) is a facility that confirms performance of nuclear fuel at a similar irradiation condition with that of nuclear power plant. FTL construction work began on August, 2006 and ended on March, 2007. During Construction, ensuring the worker's safety was the top priority and installation of the FTL without hampering the integrity of the HANARO was the next one. The installation works were done successfully overcoming the difficulties such as on the limited space, on the radiation hazard inside the reactor pool, and finally on the shortening of the shut down period of the HANARO. The Commissioning of the FTL is to check the function and the performance of the equipment and the overall system as well. The FTL shall start operation with high burn up test fuels in early 2008 if the commissioning and licensing progress on schedule.

• 한국융합학회논문지
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• 제11권5호
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• pp.175-182
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• 2020

계단 보행 시 로봇의 최적 궤도 계산은 유전자 알고리즘과 계산 토크 컨트롤러를 사용하여 수행되었다. 첫째, 생식, 교배, 돌연변이로 이루어진 실시간 유전 알고리즘 (RCGA)을 사용하여 총 에너지 효율이 최소화되었다. 보폭의 시작과 끝, 그리고 조인트, 각도, 각속도 위치 어셈블리 관련 재현성 조건은 선형 제약이다. 다음은 고르지 못한 제약은 코너 스윙 다리와 계단의 외부와의 충돌을 막기 위한 조건, 운동 학적 특이성을 막기 위한 무릎 관절의 조건 및 진행 방향의 안전은 보장되지 않음 이란 조건을 따른다. 마지막으로, 각 관절의 각도 궤도는 염색체를 근사 계수를 가지는 4차 다항식에 의해 정의된다. 이것은 보통 도보를 의미한다. 이 연구에서는 최적의 궤도의 에너지 효율을 7개의 링크로 구성된 7자유도의 2족 로봇을 통한 컴퓨터 시뮬레이션을 통해 분석했다.