• Title/Summary/Keyword: concepts understanding

Search Result 1,425, Processing Time 0.027 seconds

Propeller Perforator Flaps in Distal Lower Leg: Evolution and Clinical Applications

  • Georgescu, Alexandru V.
    • Archives of Plastic Surgery
    • /
    • v.39 no.2
    • /
    • pp.94-105
    • /
    • 2012
  • Simple or complex defects in the lower leg, and especially in its distal third, continue to be a challenging task for reconstructive surgeons. A variety of flaps were used in the attempt to achieve excellence in form and function. After a long evolution of the reconstructive methods, including random pattern flaps, axial pattern flaps, musculocutaneous flaps and fasciocutaneous flaps, the reappraisal of the works of Manchot and Salmon by Taylor and Palmer opened the era of perforator flaps. This era began in 1989, when Koshima and Soeda, and separately Kroll and Rosenfield described the first applications of such flaps. Perforator flaps, whether free or pedicled, gained a high popularity due to their main advantages: decreasing donor-site morbidity and improving aesthetic outcome. The use as local perforator flaps in lower leg was possible due to a better understanding of the cutaneous circulation, leg vascular anatomy, angiosome and perforasome concepts, as well as innovations in flaps design. This review will describe the evolution, anatomy, flap design, and technique of the main distally pedicled propeller perforator flaps used in the reconstruction of defects in the distal third of the lower leg and foot.

Advances in modelling the mechanisms and rheology of electrorheological fluids

  • See, Howard
    • Korea-Australia Rheology Journal
    • /
    • v.11 no.3
    • /
    • pp.169-195
    • /
    • 1999
  • An electrorheological fluid (ERF) is typically a suspension of semi-conducting solid particles dispersed in an insulating carrier fluid, and shows a dramatic change in rheological properties when an external electric field is applied. This rapid and reversible change in flow properties has potential application in many electronically controlled mechanical devices, but the development of efficient devices and optimal materials for ERF is still hindered by incomplete understanding of the fundamental physical mechanisms involved. In recent years there have been considerable advances In relating microstructural models to the rheological behaviour, and these will form the basis of this review. Results of the theoretical calculations and simulations will be compared to the key experimental evidence available. An overview of the fundamental physical concepts behind electrorheological fluid behaviour will also be presented.

  • PDF

The Study on the Doubleness of Rene Magritte appeared in the Architecture of O.M.Ungers (O.M.Ungers의 건축에서 나타나는 르네 마그리트의 이중성에 관한 연구)

  • 이병욱;김용승;박용환
    • Korean Institute of Interior Design Journal
    • /
    • v.13 no.1
    • /
    • pp.38-45
    • /
    • 2004
  • One of the prominent phenomena since 1960's is the diversity of concepts. It is to deny the standard of meta structure in judging value as a framework of truth understanding. M. Foucault says that we are living in a synchronous, parallel, and scattered epoch. In the architectural approach and interpretation of Ungers, such a phenomenon appears as multi-dimensional relations. The works of Ungers show the concrete manifestation of such thoughts since 1960's. He has exerted significant influence on German architecture through his book ‘Architecture as Theme’ and architectural works. His architecture has focuses on analogy and abstraction on the foundation of his well defined theory. As the features, it shows dialectic relations, mix of confrontation, interests in geometry and morphology. In this respects, the paper tries to find out the relationship between his architectural thoughts and the paintings of Rene Magritte in terms of the attributes of doubleness in the sense of a paradox. Ungers himself refers that he was directly influenced by Magritte.

A Study on Searching for Process of Experience for Architectural Design (건축공간에 있어서 경험의 과정성 구현 연구)

  • Kim Soojin;Lee Young-Soo
    • Korean Institute of Interior Design Journal
    • /
    • v.14 no.5 s.52
    • /
    • pp.62-70
    • /
    • 2005
  • Basically, modern architect's translation of relations between architectural space and human beings is focused upon the space and the way the space is experienced. Thus, the architecture is construed not as the finalized and fixed structure but as something undetermined and In progress. Here, we can identify the similarity between current trend and theory on process. Experience argument in this study is based upon such a similarity. And for your understanding of the spatial concept broached in the following experience argument, I've presented the analysis of Ben van Berkel's and Kazuyo Sejima's works that represent user's experiences in discussing art works. Taking a step further, I'll try to provide the true definition of being in progress and the potential of the architecture, thereby seeking the value and meaning of trends in modern architecture. In this regard, this study is aimed to analyze the attributes of experiences in progress identified in the art works of Ben van Berkel and Kazuyo Sejima and to extract and analyze the architectural concepts therein.

Thoughts and Tools of Collaborative Architectural Design Process

  • Han, Seung Hoon
    • Architectural research
    • /
    • v.7 no.1
    • /
    • pp.1-9
    • /
    • 2005
  • The needs of collaboration among design participants spread in different locations is emphasized in the early design stage in order to not only save time and provide places to meet and talk, but also to save cost for those events as well: This is being realized by the Internet, which helps support a networked, integrated real-time multi-user environment. As the base for collaboration activities moves from physical places to cyberspace, the methods of connecting every participant by means of a computer technology have been desired and considered. This study aims at investigating today's collaboration technology in the architectural design process, especially focused on the early stages, in terms of temporal dimensions. In addition, major concepts for and previous efforts and tools of collaborative design have been examined, and a specific recommendation has been proposed for future development of collaborative architectural design systems: That is distributed collaboration, which is accessible and comprehensible to all the professionals in the building design team, which not only allows the sharing of information but also the sharing of understanding, and which facilitates the development of design tools for different aspects of the envisioned collaborative design environment.

History of Psychosomatic Medicine Revisited (정신신체의학 역사의 재조명)

  • Jeong, Do-Un
    • Korean Journal of Psychosomatic Medicine
    • /
    • v.1 no.1
    • /
    • pp.3-13
    • /
    • 1993
  • Since the onset of modern psychosomatic medicine decades ago. it has made significant at contribution to general medicine in terms of understanding the patient as a whole person suffering from an illness rather than as a disease per se. However, initial expectation of delineating specific psychogenesis and developing specific treatment modality has not been fulfilled. Consequently, it has raised substantial concern about the continuing utility of psychosomatic medicine in modem medicine. The author attempted to review critically the evolution of psychosomatic medicine from the perspective of the present and to make projections into the near future. It is concluded that psychosomatic medicine in the future will continue to contribute to development of modem medicine not only as the scientific principle but also as the practical methodology, working as creative interface among disciplines and fusing ideas from rapidly developing molecular biology and neuroscience with psychosomatic concepts. Finally, suggestions for further developing psychosomatic medicine in Korea are made.

  • PDF

Building a Product Design of Innovative Strategy for Creating Enterprise Development

  • Liao, Shih-Chung
    • The Journal of Industrial Distribution & Business
    • /
    • v.5 no.1
    • /
    • pp.17-25
    • /
    • 2014
  • Purpose - Nowadays, the innovative design concept is being implemented in product design. In order to satisfy market trends and the demand for quality, designers should employ customer satisfaction questionnaires and analyze them with various experimental processes. Research design, data, and methodology - These methodologies would help designers have a better understanding of their customers and judge the market size and clustering validity, by diverse product strategies, for dealing with the rapid change prevailing in the market today. Results - By considering the innovative design with regard to telephones as an experimental case, the study investigates and demonstrates how the product can benefit from market-oriented and customized management concepts, when creative design ability is utilized for developing the product. Conclusions - Along with the benefit of having an innovative product value, the product can stimulate progress inthe development of the enterprise management, which has emerged as the main issue in the area of social and economic development in every developed country.

The history of oriental medicine at certain point of internal-external and Eumyang (내외(內外).음양(陰陽)의 관점에서 본 한의학(韓醫學)의 역사(歷史))

  • Jeong, Chang-Hyun
    • Journal of Korean Medical classics
    • /
    • v.21 no.4
    • /
    • pp.161-177
    • /
    • 2008
  • The oriental medicine is not static knowledge. Since the publication of "Hwangjenaegyeong(黃帝內經)", it has unceasingly changed and developed, that changes and developments ate the reflex of culture and civil progression, and they also are active acceptance of the time's demand. when we look back into the history of the Oriental medicine, angle of understanding disease can be classified into two concepts ; internal-external and Eumyang. Internal-external is whether we find the source of disease internal or external. Eumyang is deciding which is more important between yin-essence and yang-gi which are components of the essence-gi of body. This thesis view course of development of theory of the oriental medicine since publication of "Hwangjenaegyeong(黃帝內經)" at certain point of internal-external and Eumyang and with those as background, will inquire into sameness and difference between the Korean medicine and the Chinese medicine, and provide an advanced course for the oriental medicine.

  • PDF

Technology Innovation Activity and Innovation Performance in the Software Firms (소프트웨어 기업의 기술혁신 활동과 혁신 성과에 관한 연구)

  • Ahn, Yeon-S.
    • Journal of Information Technology Services
    • /
    • v.8 no.2
    • /
    • pp.71-87
    • /
    • 2009
  • In this paper, the technology innovation for software firms are discussed. Through the literature study, the concepts about this issue and the environment and activity of software firm's the technology innovation related are described. The survey paper was developed for searching the obstacles, policy considerations, and performance of this issue etc. Also questionnaire sheet was made for identifying the relations on technology innovation activities and performance. The degree of understanding about the need of technology innovation were very high according to the analysis result from the response based on the 103 software firms. Among this survey the other results are described as follows; the motivation of technology innovation, the necessity and implementation, the duration acquired for innovation result, the favorite support program as for innovation policy, obstacles for innovation implementation, the reason for innovation collaboration etc. Finally, it is verified statistically that the performance of technology innovation be affected by the employment of external professional technician, research and development, the technical education.

Design and Implementation of Command and Control Systems for Soldiers using Smart Phone (스마트폰을 활용한 개인 병사용 지휘 통제 시스템 설계 및 구현)

  • Cho, Joon-Young;Lim, Man-Yeob
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.14 no.1
    • /
    • pp.30-38
    • /
    • 2011
  • The modern warfare needs sharing tactical situation and Command and Control(C2) capacity. Lately, developing of C2 System for Soldiers has dramatically increased according to increase of asymmetric state of hostilities like a guerilla war or a street-to-street fighting. In this paper, we explain the concepts of C2 System for Soldiers and Smart Phone. We describe the proposed system composed of HMD equipment, Smart Phone, and exclusive software. This system provides that Soldiers have C2 capacity and share the image of a visual field. It also offers efficient military power disposition and understanding tactical situation in operations.