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ORF-NT: An object-based image retrieval framework using neighborhood trees Uysal, Mehmet Ali; Yarman Vural, Fatoş Tunay (2005-01-01) This study proposes an object-based image retrieval framework, called, ORF-NT, which trains a discriminative feature set for each object class and introduces a neighborhood tree for object labelling. For this purpose, init...
Selection of the best representative feature and membership assignment for content-based fuzzy image database Uysal, Mehmet Ali; Yarman-Vural, FT (2003-01-01) A major design issue in content-based image retrieval system is the selection of the feature set. This study attacks the problem of finding a discriminative feature for each class, which is optimal in some sense. The class...
The Final Phase on Merging Ceramics with Glass Işıtman, Ödül (2014-01-01)
Exploration Studies with Ceramics and Glass Işıtman, Ödül (2012-01-01) The underlying thought of Isitman's research is to merge ceramic as ceramic and glass as glass; as an example, to integrate the two materials, in the same kiln and without changing their structures. This paper explains exp...
Technical Processes in Pit-fire Işıtman, Ödül; MARASALI, İLHAN (2012-01-01)
Coke Minimization in Dry Reforming of Methane by Ni Based Mesoporous Alumina Catalysts Synthesized Following Different Routes: Effects of W and Mg ARBAĞ, HÜSEYİN; YAŞYERLİ, SENA; YAŞYERLİ, NAİL; Doğu, Timur; DOĞU, GÜLŞEN (Springer Science and Business Media LLC, 2013-12-01) Ni based mesoporous alumina (MA) catalysts were synthesized by sol-gel (SGA) and hydrothermal (MA) methods, following impregnation and one-pot synthesis routes and catalytic performances of these materials were tested in d...
The C-11-radioisotopic study of methanol conversion on V-MCM-41: The influence of methyl iodide on the transformation Sarkadi-Priboczki, E.; Gucbilmez, Y.; Solmaz, A.; Balci, S.; Szelecsenyi, F.; Kovacs, Z.; Doğu, Timur (Elsevier BV, 2009-04-30) The methanol conversion and a feasible methanol co-reaction with methyl iodide were studied on a vanadium incorporated MCM-41 type (V-MCM-41) mesoporous catalyst. which was prepared by a direct hydrothermal synthesis metho...
MCM-41 supported PdNi catalysts for dry reforming of methane Damyanova, S.; Pawelec, B.; Arishtirova, K.; Fierro, J. L. G.; Şener, Canan; Doğu, Timur (2009-11-09) A series of bimetallic PdNi catalysts supported on mesoporous MCM-41 with different Ni content (Ni/Si ratio of 0.2-0.4) was synthesized. The effect of Pd addition to Ni-containing catalysts as well as the effect of the Ni ...
CATALYTIC CHARACTERISTICS OF MASSIVE AND LOADED SULFONIC RESINS IN THE SYNTHESIS OF ETHYL tert-BUTYL ETHER AT ATMOSPHERIC AND INCREASED PRESSURE Vlasenko, N. V.; Kochkin, Yu. N.; Strizhak, P. E.; Doğu, Timur; DOĞU, GÜLŞEN; OKTAR, NURAY; Degirmenci, L. (Springer Science and Business Media LLC, 2010-11-01) The catalytic characteristics of massive and loaded sulfonic resins in the synthesis of ethyl tert-butyl ether at atmospheric and increased pressures have been compared. It has been established that massive sulfonic resins...
Development of ceria and tungsten promoted nickel/alumina catalysts for steam reforming of diesel Bozdag, A. Arslan; Kaynar, A. D. Deniz; Doğu, Timur; Sezgi, Naime Aslı (Elsevier BV, 2019-12-01) Use of diesel fuel for on-board hydrogen production for auxiliary power units (APUs) through diesel steam reforming (DSR) reaction is a promising route. Coke minimization for cheap and active Ni/Al2O3 catalyst is necessary...