• Journal of the Architectural Institute of Korea Structure & Construction
• /
• v.33 no.12
• /
• pp.53-62
• /
• 2017

Many gradient-based mathematical methods have been developed and are in use for structural size optimization problems, in which the cross-sectional areas or sizing variables are usually assumed to be continuous. In most practical structural engineering design problems, however, the design variables are discrete. The main objective of this paper is to propose an efficient optimization method for structures with discrete-sized variables based on the harmony search (HS) meta-heuristic algorithm that is derived using penalty function. The recently developed HS algorithm was conceptualized using the musical process of searching for a perfect state of harmony. It uses a stochastic random search instead of a gradient search so that derivative information is unnecessary. In this paper, a discrete search strategy using the HS algorithm with a static penalty function is presented in detail and its applicability using several standard truss examples is discussed. The numerical results reveal that the HS algorithm with the static penalty function proposed in this study is a powerful search and design optimization technique for structures with discrete-sized members.

• Journal of Digital Convergence
• /
• v.11 no.7
• /
• pp.1-7
• /
• 2013

The reality which cannot protect existing tangible intangible modern cultural heritage in Daejeon is makes historical value and identity of a city weakened and then, this leads to absence of the foundation of urban regeneration based on the history. References as recording inheritance indicates characteristics or identity of the area and they represent the physical mental symbol of the area; images of diverse structures or sceneries with historical or cultural characteristics are contents of urban regeneration based on history and culture, which can be utilized as historical sources to verify realness of disappearing modern cultural heritage. Therefore, understanding and utilization of modern cultural heritage through this study on regional archiving can be deemed to be the first stage to bring community spirit, affection and pride to local residents. In this connection, this study intends to suggest a policy direction not only to maintain realness of modern cultural heritage through preservation and utilization but also to expect formation of settling and fellowship as well as cultural economical effect from the viewpoint of urban regeneration.

• Korean Journal of Heritage: History & Science
• /
• v.51 no.2
• /
• pp.108-123
• /
• 2018

This paper focuses on the relationship between center and periphery by discussing the circulation of rare resources, such as bronze, stamped hard pottery, and proto-porcelain. The discussion includes two parts: the internal Shang culture region and the region outside of Shang. Within the Shang culture region, all the resources mentioned above were brought from different places to the Panlongcheng site and then transferred to Zhengzhou Shang city. On the other hand, they also produced and consumed the resources in a special way, which indicates a certain degree of independence. Outside the Shang region, bronze products and maybe even raw copper resources were circulated from Zhengzhou Shang city to the Chengyang site, while stamped hard pottery and proto-porcelain were transferred to Zhengzhou through the Panlongcheng site. Resource circulation was bi-directional. Thus, this resource circulation was one of the key factors to building the relationship between center and periphery.

• The Journal of Korean Philosophical History
• /
• no.52
• /
• pp.37-67
• /
• 2017

This article is to examine the characteristics of Habin Sin Hu-Dam's method of interpreting Zhouyi and to review its position in Zhouyi history of Joseon Dynasty. Especially, there has been drown attention to the connection both Habin and Tasan Cheong Yagyong. Habin is a philosopher who consistently interprets Zhouyi through the inner logic of it, not through Neo-confucian framework of it. The inner logic is yaobian theory, which is found through investigating the auguries in the old Books of Confucianism. It could be said that this discovery is the Habin's original one, although there may be historically connections between him and Seong-Ho School in the interpreting methodology about Zhouyi. However, at a future date this logic is found in Tasan. There are no connections between two philosophers, but it may be said that they arrive at the common method of interpreting Zhouyi through investigating the auguries in the old Books of Confucianism. We find that their common methods of interpreting Zhouyi do not keep to authoritative interpretation, but there is the passion of searching for Zhouyi the way as it is.

• Pediatric Gastroenterology, Hepatology & Nutrition
• /
• v.4 no.2
• /
• pp.224-227
• /
• 2001

Esophageal duplication cysts are quite uncommon benign lesions of the esophagus that have previously been described as occurring only in the thoracic cavity. We experienced a rare case of completely intra-abdominal esophageal duplication cyst in a 10-year-old boy who has suffered from epigastric abdominal pain. Surgical excision is recommended at the time of cyst discovery whether symptoms present or not.

• Electronics and Telecommunications Trends
• /
• v.12 no.6 s.48
• /
• pp.39-49
• /
• 1997

3차원 캐릭터 애니메이션 작업은 창의적이고 반복적인 작업이므로 사용자에게 쉽고 편리하게 사용할 수 있는 인터페이스를 제공하는 것은 작업의 효율성 측면에서 중요하다. 본 고에서는 현재 나와있는 상업용 소프트웨어들에서 제공하는 애니메이션 인터페이스 기능과 직관적으로 애니메이션 작업이 이루어지도록 인터페이스에 관해 진행되고 있는 연구들에 대한 사례를 조사하고 기술을 분석하였다.

• Proceedings of the Korea Multimedia Society Conference
• /
• 2012.05a
• /
• pp.279-281
• /
• 2012

Hedge는 불확실한 언어의 기술로서 추측성 글이나, 자신의 생각을 표현하는 글, 또는 공손함을 나타내는 글 등에서 자주 표현되는 어휘를 말한다. 본 논문에서는 한국어 Hedge 인식률을 높이기 위해 기계학습 방법을 사용하여 실험을 하였다.

• Korean Architects
• /
• no.3 s.204
• /
• pp.53-71
• /
• 1986

건국대학교는 창립40주년을 맞이하여 2,000년대를 조명하는 미래지향적이고 기능적인 도서관건립을 위해 지명현상공모를 실시하여 응모결과 총8점의 작품이 접수되어 지난 2월28일 심사후 그 결과를 발표하였다. 단일건물로서의 상징성과 웅장성을 강조한 이번 현상공모에는 아도무건축(장석웅) 안이 최우수작으로 결정되었으며 본지에서는 8점의 응모된 전작품을 게재하면서 지면의 부족으로 방대한 내용의 일부만을 게재함을 안타깝게 생각한다

• Electronics and Telecommunications Trends
• /
• v.14 no.3 s.57
• /
• pp.44-53
• /
• 1999

국내 컴퓨터 그래픽스 시장에서 가장 일반적으로 선택되어지는 애니메이션 소프트웨어인 Maya, Soft-Image, 3D Studio Max를 대상으로 그 기능과 편의성을 위주로 비교한다. 애니메이션 작업에 가장 널리 사용되는 키프레임 애니메이션, 변형, 역운동학 및 동역학 애니메이션 기술 등을 애니메이션 소프트웨어 설계의 관점에서 비교한다

• Proceedings of the Optical Society of Korea Conference
• /
• 2000.02a
• /
• pp.244-245
• /
• 2000

자동차의 발명은 인류의 기술발전을 가속시켜왔고 중요한 운송수단 및 고도문명사회의 필수적인 이기로 활용되고 있다. 그러나 자동차의 유해배출가스로 인한 환경문제와 자원고갈에 의한 에너지 문제가 중요해짐에 따가 저공해, 고효율, 경제성 등이 요구되어지고 있다. 자동차배출가스 저감을 위해서는 연료와 공기의 혼합과정 개선과 연소상태를 파악하여 연소과정에서 발생되는 생성물을 개선하는 것이 가장 기본적인 대책이다. (중략)