• Advances in Computational Design
• /
• 제5권2호
• /
• pp.147-175
• /
• 2020

To achieve appropriate stresses, two new rectangular elements are presented in this study. For reaching this aim, a complementary energy functional is used within an element for the analysis of plane problems. In this energy form, the Airy stress function will be used as a functional variable. Besides, some basic analytical solutions are found for the stress functions. These trial functions are matched with each element number of degrees of freedom, which leads to a number of equations with the anonymous constants. Subsequently, according to the principle of minimum complementary energy, the unknown constants can be expressed in terms of displacements. This system can be rewritten in terms of the nodal displacement. In this way, two new hybrid-rectangular triangular elements are formulated, which have 16 and 40 degrees of freedom. To validate the outcomes, extensive numerical studies are performed. All findings clearly demonstrate accuracies of structural displacements, as well as, stresses.

• 대한간호학회지
• /
• 제39권6호
• /
• pp.868-877
• /
• 2009

Purpose: The purpose of this study was to examine the effects of Koryo Hand Therapy (KHT) on menopausal symptoms and hormone levels (Follicle Stimulating Hormone [FSH], Luteinizing Hormone [LH], and estradiol [$E_2$]) in climacteric women. Methods: The research design was a nonequivalent control group pretest-posttest design. Data were collected from November 28, 2005 to February 28, 2006. The 45 participants were assigned to either the experimental group (23) or control group (22). KHT was applied three times a week, for a total of 8 weeks to the women in the experimental group. Results: There was a statistically significant decrease in menopausal symptoms (F=42.49, p=.000), FSH level (F=26.98, p=.000) and LH level (F=5.31, p=.026) between the experimental and control groups. There was an increase of the estradiol level in the experimental group but the difference between the two groups was not statistically significant. Conclusion: KHT can be applied as a supportive nursing intervention to climacteric women. KHT is expected to be a complementary alternative intervention for health management of the climacteric women.

• 한국정보통신학회논문지
• /
• 제10권2호
• /
• pp.360-367
• /
• 2006

본 논문에서는 IEEE802.11b와 IEEE802.11g에서 제안한 CCK 변조방식의 변조기와 복조기를 구성하고, 차량간 통신환경과 같이 지연확산이 큰 경우에 대한 CCK Rake 수신기 구조를 제안하고 있다. 다경로 Rayleigh 페이딩 채널에서 각 경로의 채널추정은 패킷 프리앰블을 이용하여 추정하였고 코히런트 방식의 CCK Rake 수신기에서 다경로 신호들의 결합은 심벌레벨 결합 형태로 구성하였다. 본 논문의 성능분석 결과는 텔레매틱스 통신의 차량간 통신환경에서 CCK 모뎀의 성능을 평가하기 위하여 차량속도가 300km/h인 다경로 페이딩 채널에서 CCK 모뎀의 성능결과를 제시하고 있다.

• Architectural research
• /
• 제15권3호
• /
• pp.111-121
• /
• 2013

This paper examines the interdisciplinary practice within design realms including urban planning, architecture, landscape architecture and interior design. It discusses the pedagogical approaches at design schools to foster designers capable of design challenge with interdisciplinary skills. As the complexity of contemporary multicultural society increasingly requires a higher level of expertise in professional service, no individual designer can be expert in all fragmented expertise across the whole design and associated engineering areas. A designer, therefore, should rely on the expertise of other practitioners in areas where he or she doesn't possess proficiency and educational background. From this sense the need of interdisciplinary approaches across diverse range of design and engineering through the collaboration is rising. Historically most of discussion made on interdisciplinary approaches is limited to collaboration between architecture and supporting engineering. This paper focuses on the collaboration with design realms. Three case studies done in an interdisciplinary firm are explored, focusing on design process that is non-linear and complementary. Finally the integrative pedagogical approaches to provide students with more exposure to allied disciplines are navigated with exemplary student work from interdisciplinary design studio.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1988년도 추계학술대회 논문집 학회본부
• /
• pp.36-41
• /
• 1988

Analog and Digital Speed Control Systems have mutually complementary properties. Analog System has good dynamic characteristics and moderate steady-state accuracy and can be implemented economically with operational a ampliers. Digital System, on the contray, has good static accuracy, but relatively poor dynamic property. So, a hybrid system which uses both digital and analog control can have good static and dynamic characteristics. In this paper, it is shown that a simple digital controller can improve steady-state accuracy of existing analog control system satisfactorily, and some design criteria are presented also.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
• /
• pp.237-237
• /
• 2000

In this paper, The modified dead-time compensator for plants with an integrator and long dead time is proposed. The design procedure takes account of the closed-loop performance and robustness. The tuning of the controller can be done using some information about the plant and its uncertainties. The proposed controller is compared to others recently presented in the literature. Some simulation results verify good closed-performance and robustness of the proposed DTC.

• 복식문화연구
• /
• 제25권4호
• /
• pp.509-518
• /
• 2017

As the international competitive landscape deepens, the need to understand foreign cultures and establish effective strategies is increasing. At the beginning of the 20th century, Cartier actively developed exotic designs to secure international competitiveness; theses designs have also been used as design prototypes for Cartier in modern times. The purpose of this study is to analyze the color characteristics and types of exotic designs in the early 20th century, which was a turning point in Cartier's design. After studying the literature, a total of 248 exotic designs were presented in Cartier catalogs. This study also selected overseas monographs from the early 20th century, and their design types were classified and color analysis was performed based on the Natural Color System(NCS). Cartier's exotic designs cover wide range of styles, such as Chinese, Japanese, Persian, Indian and Egyptian styles. Multicolor, primary colors, and contrast are all strongly expressed. 97% of designs contained multiple colors, with at least two colors and maximum of six colors. The most frequently used colors are red, green, and blue, which means that only 9% of the designs do not contain the three colors, showing a high preference for theses three colors. In addition, color combinations of red and green, red and blue, or all three colors are used to show high contrast and utilize complementary colors, or near complementary colors, for coloration. This study is meaningful in that it analyzes the color characteristics of Cartier's exotic designs and translates them into practical data for establishing the color strategies of companies in the global market.

• 한국콘텐츠학회논문지
• /
• 제21권4호
• /
• pp.707-722
• /
• 2021

새롭게 야기되는 문제들을 능동적이고 창의적으로 해결할 수 있는 역량 함양을 위한 교육 환경으로 메이커 교육에 대한 관심이 증대되고 있으며, 이를 현장에 적용하는 다양한 연구들이 이루어지고 있다. 그 중 많은 사례들이 메이커 활동의 적용 단계로 디자인 사고 방법론을 활용하고 있다. 메이커 활동과 디자인 사고 방법론은 개념적으로 유사하지만 다른 특성을 가지고 있음에도 불구하고 이에 대한 고찰 없이 단순히 단계를 차용하여 수업이 설계되고 있어, 각 개념의 교육적 가치가 부각되지 못하고 있다. 이에, 본 연구는 메이커 교육과 디자인 사고의 상호보완적 관계를 바탕으로 메이커 교육 설계 모형을 개발하고자, 초안 개발, 형성평가, 최종안 완성의 절차에 따른 형성적 연구를 수행하였다. 그 결과 학습자의 자율성, 여러 가지 도구와 재료를 활용한 가시적 결과물 생산의 메이커 활동 특성과 문제 해결의 구체적인 과정, 사회 참여의 실천이라는 디자인 사고의 특성을 접목한 메이커 교육의 단계를 시각화하고 단계별 상세 활동과 교수전략을 제시하였다.

• Nuclear Engineering and Technology
• /
• 제28권3호
• /
• pp.339-348
• /
• 1996

Plant monitoring algorithm developments seem to be saturated which means that display system to show the results from the algorithm should be the well-defined and interactive tools for operator's diagnosing, controlling, restoring the abnormal plant situations. On the other hand, very little generalized display design concepts and evaluations are available. Events that are unfamiliar to operators and that has not been anticipated by designers may cause great threats to the nuclear power plant system safety operation. The abstraction hierarchy, considered most popular display design methodology but not generalized for nuclear power plant design space, has ken proposed as a representation frame work that can be adopted to design interfaces and supports operators in diagnosing overlooked events that should have been considered to operate plant safely. However most practical plant display systems do not fully stick to this design concept but partially rely on their philosophy from design experiences. Abstraction hierarchy display design concept will be do scribed and the trend of Advanced Control Room(ACR) CRT design will also be presented with the conventional display for the several type of plants. Consequently this complementary material should be of interest to designer and regulators concerned with nuclear power plant.

• 한국감성과학회:학술대회논문집
• /
• 한국감성과학회 2007년도 춘계학술대회 및 국제감성 심포지엄
• /
• pp.31-34
• /
• 2007

본 연구에서는 동일한 이미지에서 유도되는 감성적 반응이 색채의 변화에 영향을 받는가에 대하여 살펴보았다. 특히, 이미지의 어의(semantic) 내용에 전형적으로 연상되는 색채와 상반되는 색(보색)이 색조로 적용될 경우, 이미지에 대한 감성적 반응에 변화가 나타나는가에 중점을 두어 진행하였다. 이를 위해 기쁨(Pleasure)과 각성(Arousal)으로 이루어진 감성 축의 각 사분면에 해당하는 감성 이미지들을 International Affective Picture System(IAPS)에서 5장씩 추출하여 이 미지 자극으로 활용하였다. 선택된 이미지는 내용과 전형적으로 연상되는 색, 보색, 그리고 무채색 톤으로 실험에 사용하였으며 각 이미지에 대한 기쁨과 각성에 대한 감성적 반응은 Self Assessment Manikin(SAM)을 활용하여 측정하였다. 실험 결과 이미지의 내용에서 전형적으로 연상되는 색채의 보색이 이미지의 색조로 적용될 경우 감성적 반응이 소극적으로 나타나는 결과가 관찰되었다.