Thermoluminescence properties of natural calcites and age determination of stalactites.

1979
Türetken, Naif
Show full item record
54
views
0
downloads
Thermoluminescence., Calcite., Stalactites and stalagmites.
https://hdl.handle.net/11511/11760
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Analysis of koch fractal antennas
İrgin, Ümit; Birand, Mehmet Tuncay; Department of Electrical and Electronics Engineering (2009)
Fractal is a recursively-generated object describing a family of complex shapes that possess an inherent self-similarity in their geometrical structure. When used in antenna engineering, fractal geometries provide multi-band characteristics and lowering resonance frequencies by enhancing the space filling property. Moreover, utilizing fractal arrays, controlling side lobe-levels and radiation patterns can be realized. In this thesis, the performance of Koch curve as antenna is investigated. Since fractals a...
Parametric study and design of vivaldi antennas and arrays
Erdoğan, Yakup; Dural Ünver, Mevlüde Gülbin; Department of Electrical and Electronics Engineering (2009)
In this thesis, parametric study and design of Vivaldi antennas and arrays are studied. The parameters of single element antennas and arrays are investigated regarding their effects on the design. The return loss responses and radiation patterns are considered in the parametric study. The results of simulations realized using Ansoft HFSS, a high frequency electromagnetic field simulation program, are shown and discussed. Two different Vivaldi antennas operating in 8.5-10.5 GHz frequency band with return los...
The Neighbourhood Mosque with Wooden Minaret in Bosnia and Herzegovina from 16th and 17th Century: Four Examples of Restoration in Tuzla Region
Jahic, Edin (Middle East Technical University, Faculty of Architecture, 2019-9-25)
The mosque with wooden minaret, porch and hip roof, represents the authentic building type which had been built on a large number through four centuries of the Ottoman period in Bosnia and Herzegovina (1463-1878). These structures were constructed using locally available materials and construction techniques, all done by domestic builders. Sometimes numerous, small neighbourhood (mahalle) mosques constantly decay and disappear in last hundred years, as a result of incompetent appraisal and maintenance, viol...
Analysis and design of active annular ring coupled circular patch antenna
Gebeşoğlu, Durmuş; Koç, Seyit Sencer; Department of Electrical and Electronics Engineering (2017)
This thesis includes the design, production and measurement of the active, dual band annular ring coupled circular patch antenna. The dual band operation is achieved by using stacked patches. 3 dB hybrid is used to obtain circular polarization. Effects of antenna parameters on the input impedance and frequency ratio between the resonance frequencies are observed. Design has been achieved step by step. Firstly, dual band operation is investigated by using stacked patches. An annular ring antenna and a circul...
Analysis of dual - polarized aperture - coupled microstrip antennas with H-shaped slots and equivalent circuit modeling of H shaped slots
İşeri, Kadir; Alatan, Lale; Department of Electrical and Electronics Engineering (2012)
This thesis includes the design, production and measurement of a wideband dualpolarized X-band aperture-coupled microstrip patch antenna. The wideband and dual-polarized operation is achieved through the use of H-shaped coupling slots. Therefore, the equivalent circuit modeling of a microstrip line fed H-shaped slot is also studied in this thesis. A step-by-step procedure is followed during the design process of the dual-polarized aperture-coupled microstrip antenna. First, an aperture-coupled microstrip an...
Citation Formats
N. Türetken, “Thermoluminescence properties of natural calcites and age determination of stalactites.,” Middle East Technical University, 1979.
METU IIS - Integrated Information Service open@metu.edu.tr