WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7150

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  • Article
    How Myths of City Affects Architecture Via Sample of Arap Cami
    (İstanbul Üniversitesi, 2016) Gelişkan, Nil Nadire; 01. Izmir Institute of Technology
    In order to have direct relation with past people try to settle a historical, word-of-mouth, splendid stories with place that they are living in. Having a memorable, symbolic legends makes people a part of city's collective memory. Istanbul was a significant example that not only Byzantion people controlled this capital but also it was important for others in terms of religional care and its key location between east and west. This makes Istanbul always under Islamic-Arabian attacks both because of location and religional importance. Although these attacks could not reach their aim, Arabic pilgrims searched some architectural shares to be a partner of Istanbul. Mosque is the key building to settle an partnership with Istanbul. With an partnership in other words legend was always increased. This intention also affects architecture somehow with some symbolic buildings that Arap Cami is important one because of having claim of the first Islamic construction in Istanbul. This study seeks to understand reasons of naming a Latin church which probably was constructed on an old Byzantion church firstly as a mosque of Mesleme by giving some Islamic symbolic meanings. In order to get some clues about what makes Istanbul as legendary Arabs and also Muslims, how they tried to gain ownership of this capital not truly but metaphorically or symbolically. Starting from Arap Cami as case study archives, records and travellers scripts will be major research sources for this study. Historians of Istanbul had tendency to mention about this city as God's city with regards to being Constantinopolis or Istanbul. Because settling of Istanbul at the beginning held by emperor who represented as God on earth. For Muslims conquering of this city has significant and symbolic importance in consequence of prophet's words: 'Such a glorious commander who conquered Istanbul, such a glorious soldier who conquer Istanbul'. Arap Cami is important because of having an origins speculations tries to settle desiring relation with Constantinopolis. Anonymous mouths who established legends and myths put in to contact with both their roots and anyone who would listen. Purpose of study is investigating effects of origin speculation in terms of architecture.
  • Article
    Citation - WoS: 4
    Citation - Scopus: 4
    Selection of Alternative Landfill Location by Using a Geographical Information System. European Side of Istanbul. Case Study
    (Technical University of Wroclaw, 2016) Demir, Göksel; Ökten, Hatice Eser; Ökten, Hatice Eser; Alyüz, Ümmügülsüm; Bayat, Cuma; 03.07. Department of Environmental Engineering; 03. Faculty of Engineering; 01. Izmir Institute of Technology
    One of the most difficult tasks encountered when implementing waste management practices in Turkey involves the selection of the most suitable area for a landfill. The Geographic Information System (GIS) which possesses the ability to imitate and process economic and environmental constraints, presents itself as a useful and effective decision support tool. This study will utilize the GIS to determine feasible alternative landfill areas on the European side of Istanbul, which has a high density population, showing that accurate selection results can be achieved at lower cost.
  • Article
    Citation - WoS: 25
    Citation - Scopus: 34
    Sample Size Needed for Calibrating Trip Distribution and Behavior of the Gravity Model
    (Elsevier Ltd., 2010) Çelik, Hüseyin Murat; Çelik, Hüseyin Murat; 02.03. Department of City and Regional Planning; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    Conventional calibration algorithms of trip distribution models assume that the analyst has a whole base year trip matrix. To attain a whole trip matrix, the sample size for travel surveys needed to be as large as possible. However, this could be very expensive especially in large cities. Some studies in the past showed a small sized sample would be enough to estimate functional parameters of observed trip length frequency distribution. But the performance of a gravity model with small sized samples has never been addressed. This empirical study has shown that sample sizes as small as 1000 (even smaller for quick response studies) could be as dependable as large sample surveys using a line search calibration algorithm. © 2009 Elsevier Ltd. All rights reserved.
  • Article
    Citation - WoS: 28
    Citation - Scopus: 18
    Artificial Neural Network Prediction of Tropospheric Ozone Concentrations in Istanbul, Turkey
    (John Wiley and Sons Inc., 2010) İnal, Fikret; İnal, Fikret; 03.02. Department of Chemical Engineering; 03. Faculty of Engineering; 01. Izmir Institute of Technology
    Tropospheric (ground-level) ozone has adverse effects on human health and environment. In this study, next day's maximum 1-h average ozone concentrations in Istanbul were predicted using multi-layer perceptron (MLP) type artificial neural networks (ANNs). Nine meteorological parameters and nine air pollutant concentrations were utilized as inputs. The total 578 datasets were divided into three groups: training, cross-validation, and testing. When all the 18 inputs were used, the best performance was obtained with a network containing one hidden layer with 24 neurons. The transfer function was hyperbolic tangent. The correlation coefficient (R), mean absolute error (MAE), root mean squared error (RMSE), and index of agreement or Willmott's Index (d2) for the testing data were 0.90, 8.78 μg/m3, 11.15μg/m3, and 0.95, respectively. Sensitivity analysis has indicated that the persistence information (current day's maximum and average ozone concentrations), NO concentration, average temperature, PM10, maximum temperature, sunshine time, wind direction, and solar radiation were the most important input parameters. The values of R, MAE, RMSE, and d2 did not change considerably for the MLP model using only these nine inputs. The performances of the MLP models were compared with those of regression models (i.e., multiple linear regression and multiple non-linear regression). It has been found that there was no significant difference between the ANN and regression modeling techniques for the forecasting of ozone concentrations in Istanbul. Tropospheric ozone has adverse effects on human health and environment. Here, the next-day's maximum 1-h average ozone concentrations in Istanbul were predicted using multi-layer perceptron type artificial neural networks (MLP-ANNs). The MLP-ANNs were compared to multiple linear and multiple non-linear regression models. Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.