• Journal of architectural history
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• v.19 no.1
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• pp.27-50
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• 2010

This paper was to analyze the fusion between the organic and inorganic characteristics performed in architecture and urbanism, especially on the characteristics found in the works of Archigram group who was very active during 1960s and 70s. Generally, it was thought that Archigram drew its ideas mainly from a mechanist metaphor and that the diagrams of its members were based on the notion of the material obsolescence, which could be placed in a British tectonic tradition. But, Archigram's works has been continually influenced by the biological-organic analogy from the birth of the group to its dissolution. Simply, the importance that the biological-organic analogy takes in the works of Archigram has changed periodically according to the change of its members. We can divide generally Archigram group in two parts : on one hand, nascent members such as Peter Cook, Dennis Greene, Michael Webb ; on the another hand, three members who participated from LCC such as Warren Chalk, Ron Herron, Dennis Crompton. As the new three LCC members participated, Archigram Group focalized on the technological part more than ever. But, when its members dispersed geographically and professionally, its biological-organic analogy came out again at the surface of their works. However, Archigram's organic and inorganic characteristics did not always adhere in opposing position with each other and took the form of coexistence in harmony at the same period. That is, the works of Archigram were persuing the creation of community that nature, technology and architecture could communicate and harmonize with each other through the intergration between organic and inorganic characteristics. The reason why Archigram became the one of the most excellent architectural avant-garde group in the 60s was mainly to receive asssitance with the fact that two small groups having contradictory tendencies got together and formed the Archigram group.

• Korean Institute of Interior Design Journal
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• v.20 no.5
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• pp.68-77
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• 2011

In this research it is concentrated first of all on the attempts to reconstruct the historical context of the idea for the space design based on the natural construction and to re-appropriate il critically to the present context. Sequentially in the areas of philosophy, biology, neuroscience, and architecture it has been variously discussed on the problems about the synthesis of biology and techniques. In the context of the consilience of biology and technique Werner Nachtigall, who has intended to shed light on the morphological principles in the natural construction, founded the 'Bionik', which is different from the bionics or the biomechanics that are oriented to the imitation of natural forms. The space design that is on the basis of the Bionik treats organisms as a functional whole. Therefore the Bionik space design follows two kinds of principle such as the principle of analogy and the principle of optimization. After all the understanding of the consilience of nature and technique for Nachtigall and Bionik designers tends toward the explication of the complex process in which the human perceptions, the environment, and the phenomenal techniques are united together, and this complex process is associated with the space design based on the Bionik.

• Korea-Australia Rheology Journal
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• v.18 no.1
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• pp.31-38
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• 2006

A systematic approach is employed to elucidate the interrelationships among macroeconomic entities such as science, engineering, technology, industry and national economy. Specifically, a conceptual, sequential method has been developed to clearly identify the essential ingredients needed for each macroeconomic entity starting from science to transform to the next one, and all the way to the national economy where the production of added-value is of overriding importance. The results thus obtained can then be utilized for macroeconomists to readily apply the engineering theory and knowledge to various macroeconomics situations, while engineers can likewise utilize the results on top of the microeconomic knowledge already prevalent in many engineering fields in getting better grasp of the seemingly difficult nation's macroeconomic picture. Other peripheral concepts and issues such as the evolutionary development of industry, the perspectives of the $21^{st}$ century civilization, an analogy between macroeconomics and chemical engineering, and national policies for each macroeconomic entity are also presented in this study.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.32 no.12
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• pp.1132-1139
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• 2008

The aim of this study is to apply shape optimization technique for the repair of aging airframe components, which may extend fatigue life substantially. Free-form optimum shapes of a cracked part to be reworked or replaced are investigated with the objective to minimize the peak local stress concentration or fatigue-damage. Iterative non-gradient method, which is based on an analogy with biological growth, is employed by incorporating the robust optimization method to take account of the stochastic nature of the loading conditions. Numerical examples of optimal hole shape in a flat plate are presented to validate the proposed method. The method is then applied to determine the reworked or replacement shape for the repair of a cracked rib in the rear assembly wing body of aircraft.

• Agricultural and Biosystems Engineering
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• v.4 no.1
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• pp.1-7
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• 2003

Internal defects such as browning of the flesh and blackening and rot of the ovary of pear can be easily developed because of the inadequate environmental conditions during the storage and distribution of fruit. The quality assurance system for the agricultural product is to be settled in Korea. All defected agricultural products should be excluded prior to the distribution to enhance the commercial values. However, early stage on-line defect detection of agricultural product is very difficult and even more difficult in a case of the internal defects. The goal of this research is to develop a system that can detect and classify internal defects of agricultural produce on-line using VIS/NIR transmittance spectroscopy. And Shingo pear, which is one of the famous species of Korean pear, was used for the experiment. Soft independence modeling of class analogy (SIMCA) algorithm was employed to analyze the transmittance spectroscopic data qualitatively. On-line classification system was constructed and classification model was developed and validated. As a result, the correct classification rate (CCR) using the developed classification model was 96.1 ％.

• Journal of Biomedical Engineering Research
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• v.23 no.4
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• pp.295-300
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• 2002

Localized hypoxia, due to the diminished $O_2$supply, is reported to cause necrosis of the arterial cell and to significantly decrease resistances to physiologic distending pressures. In the present study, in order to understand the mechanism of localized hypoxia which might result in the rupture of the aneurysm. $O_2$ transport phenomena across intraluminal thrombus in axisymmetric aneurysms under steady laminar flow condition were numerically analyzed using the Fick's law and the analogy with the fluid-solid heat transfer. For computational models, varying the thickness of intraluminal thrombus, numerical results showed that for the axisymmetric aneurysm with intraluminal thrombus. $O_2$ concentration became minimal at the aneurysm wall. With increased thickness of the intraluminal thrombus in the aneurysm. regions of low $O_2$ concentration were widely distributed near the aneurysm wall, which resulted in the possibility of localized hypoxia. The present study verifis that intraluminal thrombus influences $O_2$ transport to the aneurysm wall. depending on its size and structure.