Browsing by Subject "Computer-aided design"

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Open Access
Optimization of the gain-bandwidth product of capacitive micromachined ultrasonic transducers
(IEEE, 2005-12) Olcum, S.; Senlik, M. N.; Atalar, Abdullah
Capacitive micromachined ultrasonic transducers (cMUT) have large bandwidths, but they typically have low conversion efficiencies. This paper defines a performance measure in the form of a gain-bandwidth product and investigates the conditions in which this performance measure is maximized. A Mason model corrected with finite-element simulations is used for the purpose of optimizing parameters. There are different performance measures for transducers operating in transmit, receive, or pulse-echo modes. Basic parameters of the transducer are optimized for those operating modes. Optimized values for a cMUT with silicon nitride membrane and immersed in water are given. The effect of including an electrical matching network is considered. In particular, the effect of a shunt inductor in the gain-bandwidth product is investigated. Design tools are introduced, which are used to determine optimal dimensions of cMUTs with the specified frequency or gain response.
Open Access
Proposal for improving computer aid to interior architectural design
(1993) Şenyapılı, Burcu
In this work, several proposals are put forth in order to render computer-aid to interior architecture more efficient and easy-to-use. Considering the role of computer in architecture as a design assistant, the factors establishing this position have been discussed. Based on these factors and aspects of interior architecture, proposals are introduced. The proposals aim firstly at creating an interactive design environment where designers do not have to be specialized ‘in computers’, but ‘with the aid of computers’; secondly, at drawing attention to potential areas of study in computer-aid in design related to aspects particular to the profession of interior architecture. Finally, the expected contributions of the proposals introduced are discussed in terms of interior architectural practice and education, discussing the new definition of the profession and future trends.
Open Access
The shifting tides of academe: oscillation between hand and computer in architectural education
(Springer Netherlands, 2006-09) Şenyapili, B.; Basa Ý.
There is a current vacillation in choosing hand or computer for design presentation in academia. Although the computer emerged as very powerful alternative presentation medium, it could not sweep away the hand totally. Believing that this vacillation cannot only be due to the positive and negative aspects of both media, we worked with a group of students in a design curriculum to observe the factors that affect their choice of medium for presenting design ideas. The students were required to use both media for the same task, subsequently their satisfaction and evaluation were examined through a questionnaire. Students acknowledged the positive aspects of both media, rather than accumulating on one side. Findings led us to concur that the constant oscillation of architecture between art and science penetrates down to the individual choice of presentation medium. We assert that the warmness of hand is not deserted as it contemplates the artistic essence, while the digital perfection of the computers flirt with science. The ever-attended, age-old question of architecture's being art and/or science occupies the architectural agenda at various levels. Both the polarizations and the reconciliations have theoretical, practical and educational consequences. This paper locates itself within this context and proposes a new framework for analyzing the impacts of this oscillation in design presentation, concluding that the future of presentation in education points to the coexistence of both media.