A study on the maintenance of stone monuments in relation to dampness problems

A new method for detecting the alignments from point-like features : an application to the volcanic cones of Cappadocian volcanic province, Turkey Arcasoy, Arda; Toprak, Vedat; Department of Geological Engineering (2001)
A Multi-scale approach to characterization of volcanic natural pozzolans/ Sassani, Alireza; Turanlı, Lütfullah; Meral, Çağla; Department of Civil Engineering (2014) Three types of volcanic rocks, namely perlite, a zeolite-rich volcanic tuff and a feldspar-rich volcanic tuff were selected to represent the general group of Volcanic Natural Pozzolans (VNPs). The target group was those volcanic natural pozzolans which intrinsically possess pozzolanic properties, i.e. do not require heat-treatment to obtain pozzolanic reactivity. X-ray Fluorescence (XRF), Powder X-Ray Diffraction (XRD), Blaine air permeability test, Laser diffraction, thermogravimetry (TGA), solid-state 29S...
An Experimental and numerical study on the combustion characteristics of pool fires in tunnels Shafee, Sina; Yozgatlıgil, Ahmet; Department of Mechanical Engineering (2017) This work presents the results of experimental and numerical analysis on tunnel fires in an attempt to improve existing knowledge on the fire dynamics and related safety measures in various tunnel fire scenarios. Results are grouped into four parts in which the effects of tunnel wall coating, inclination, tunnel obstruction and existence of secondary fire source in close vicinity were investigated on tunnel fire characteristics. A 1/13 longitudinally ventilated scaled tunnel model constructed based on Froud...
A METHOD FOR COMPARATIVE-EVALUATION OF EIT ALGORITHMS USING A STANDARD DATA SET IDER, YZ; EYUBOGLU, BM; KUZUOGLU, M; Leblebicioğlu, Mehmet Kemal; BAYSAL, U; CAGLAR, BK; BIRGUL, O (IOP Publishing, 1995-08-01) The point spread function (PSF) is the most widely used tool for quantifying the spatial resolution of imaging systems. However, prerequisites for the proper use of this tool are linearity and space invariance. Because EIT is non-linear it is only possible to compare different reconstruction algorithms using a standard data set. In this study, the FEM is used to generate simulation data, which are used to investigate the non-linear behaviour of EIT, the space dependence of its PSF and its capability of reso...
An efficient method for snore/nonsnore classification of sleep sounds Cavusoglu, M.; Kamasak, M.; Erogul, O.; Çiloğlu, Tolga; Serinağaoğlu Doğrusöz, Yeşim; Akcam, T. (IOP Publishing, 2007-08-01) A new method to detect snoring episodes in sleep sound recordings is proposed. Sleep sound segments ( i.e., 'sound episodes' or simply 'episodes') are classified as snores and nonsnores according to their subband energy distributions. The similarity of inter- and intra-individual spectral energy distributions motivated the representation of the feature vectors in a lower dimensional space. Episodes have been efficiently represented in two dimensions using principal component analysis, and classified as snor...

Citation Formats

A. Tavukçuoğlu, “A study on the maintenance of stone monuments in relation to dampness problems,” Ph.D. - Doctoral Program, Middle East Technical University, 2001.