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Yayın Evaluation of wooden structures(Springer, 2019) Koca, GülruIn order to preserve the architectural heritage and sustainability of cities, the accurate evaluation of the mechanical properties of existing buildings is crucial. While inorganic building materials such as natural stones can be evaluated more easily, it is difficult to accurately assess the mechanical properties of wood. Mistaken evaluations of structural wooden members may lead to large-scale replacements in the maintenance and restoration of buildings. The techniques used in the evaluation of wood are; destructive, semi-destructive and non-destructive tests. Although destructive tests give accurate information about the mechanical properties of wood, they are not preferred in the evaluation of the existing structures because they cause the loss of structural integrity. The semi-destructive and non-destructive methods are being widely used for the last decades in the evaluation of structural wooden members. As these techniques do not give harm to the structural members, they allow the in situ evaluation of wooden structures. While semi-destructive tests are carried out with the extraction of a small piece without influencing the mechanical properties of wood, non-destructive techniques are carried out with the help of small devices in order to detect the interior defect and deteriorations. In this study, it is aimed to give information about some of the most used semi-destructive and non-destructive test methods.Yayın A proposal for a computational design and ecology based approach to architectural design studio(Springer, 2022-03) Karadağ, Derya; Tüker, ÇetinUsing computational design methods, this study aims to analyze the effects of an integrated design process model on the ecological awareness of architectural students, and on their ability to incorporate ecological issues in their design work. To this end, two studies have been carried out. The first one involves a survey about how ecology-related and computational design courses complement the architectural design studio at different universities in Turkey. The second one, which is the main study of this paper, presents the results of an ecology-based computational design workshop. According to the results of the first study, computer-based design courses in Turkey usually lack the dimension of “computational thinking”, focusing only on computer-aided design tools. Moreover, we have also found out that ecology courses in Turkish architectural education are mostly elective, and hence, have only very indirect connection to the architectural design studio. In the second study, we have demonstrated how incorporating computational thinking into the design process increase students’ awareness of the ecological dimension and their ability to make this dimension an integral part of their projects. The paper concludes by elaborating on the importance of computational methods in architectural education.Yayın Texture recognition for frog identification(ACM SIGMM, 2012-11-02) Cannavo, Flavio; Nunnari, Giuseppe; Kale, İzzet; Tek, Faik BorayThis paper describes a visual processing technique for automatic frog (Xenopus Laevis sp.) localization and identification. The problem of frog identification is to process and classify an unknown frog image to determine the identity which is recorded previously on an image database. The frog skin pattern (i.e. texture) provides a unique feature for identification. Hence, the study investigates three different kind of features (i.e. Gabor filters, granulometry, threshold set compactness) to extract texture information. The classifier is built on nearest neighbor principle; it assigns the query feature to the database feature which has the minimum distance. Hence, the study investigates different distance measures and compares their performance. The detailed results show that the most successful feature and distance measure is granulometry and weighted L1 norm for the frog identification using skin texture features.
