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Now showing items 1-20 of 121

Forecasting The Natural Gas Demand At New Locations A Case Study For Turkey

Türker Bayrak, Özlem; Köksal, Gülser; Okandan, Ender (2005)
Sample design and allocation for random digit dialling

Ayhan, H. Öztaş; Islam, M. Qamarul (Springer, 2005-10)

Sample design and sample allocation methods are developed for random digit dialling in household telephone surveys. The proposed method is based on a two-way stratification of telephone numbers. A weighted probability ...
Spam mail filtering using Bayesian classifier and heuristics

Eş, Sinan; Aşkun, Ali Riza; Hassanpour, Reza (2006)

Commercials and virus infected files transferred by electronic mails (e-mail) have been a main source of time and resource loss during the past decade and email filtering as a binary text classification problem has attracted ...
Inter-laboratory comparison scheme for fuel sector, LABKAR in Turkey

Bayrak, Özlem Türker; Okandan, Ender; Üçkardeş, Hale (Springer, 2009-08)

Fuel sector is one of the powerful sectors in Turkish industry. The implementation of a new law for regulating the fuel sector had enforced the quality control of fuels sold to public. This resulted in several accredited ...
Classification Models Based On Tanaka's Fuzzy Linear Regression Approach: the Case of Customer Satisfaction Modeling

Bayrak, Özlem Türker (IOS Press, 2010)

Fuzzy linear regression (FLR) approaches are widely used for modeling relations between variables that involve human judgments, qualitative and imprecise data. Tanaka's FLR analysis is the first one developed and widely ...
Intellectual freedom and libraries: A quantitative discourse analysis

Darvish, Hamid (2010)

United Nation published Human Rights Declaration in 1948. The most important part of the Human Right Declaration is that, everyone has the right to search and receive information at any time. To this respect, libraries ...
Electricity Price Modelling for Turkey

Yıldırım, Miray Hanım; Bayrak, Özlem Türker; Weber, Gerhard Wilhelm; Özmen, Ayşe (Springer-Verlag Berlin, 2012)

This paper presents customized models to predict next-day's electricity price in short-term periods for Turkey's electricity market. Turkey's electricity market is evolving from a centralized approach to a competitive ...
Temperature and Excitation Intensity Tuned Photoluminescence In Ga0.75In0.25Se Crystals

Işık, M.; Güler, I.; Gasanlyc, N. M. (Elsevier Science BV, 2013-01)

Photoluminescence (PL) spectra of Ga0.75In0.25Se layered single crystals have been studied in the wavelength range of 580-670 nm and temperature range of 7-59 K. Two PL emission bands centered at 613 nm (2.02 eV, A-band) ...
Temperature-dependent absorption edge and photoconductivity of Tl 2In2S3Se layered single crystals

Güler, İpek; Ambrico, M.; Ligonzo, T.; Gasanly, N.M. (2013-02-15)

Temperature variation of indirect band gap of Tl2In 2S3Se layered single crystals were obtained by means of absorption and photoconductivity measurements. The temperature coefficient of -7.1 × 10-4 eV/K from absorption ...
Parallel data reduction techniques for big datasets

Yıldırım, Ahmet Artu; Özdoğan, Cem; Watson, Dan (2013-10-31)

Data reduction is perhaps the most critical component in retrieving information from big data (i.e., petascale-sized data) in many data-mining processes. The central issue of these data reduction techniques is to save time ...
Survey and evaluation on modelling of next-day electricity prices

Yıldırım, Miray Hanım; Bayrak, Özlem Türker; Weber, Gerhard-Wilhelm (2014)
Klasik Dönem Osmanlı Şiirinde Patronaj ve Şairin Üretim Süreci İlişkisine Bir Bakış

Atabağsoy, Naim (2014)
Optical analysis of TlInS2xSe2(1-x) mixed crystals

Güler, İpek (2014-01-21)

The ellipsometry measurements were carried out on TlInS2xSe2(1-x) mixed crystals in the spectral range of 1.5-6.0 eV at room temperature. The refractive index, extinction coefficient, real and imaginary parts of dielectric ...
Calculation of the infrared frequencies as a function oftemperature using the volume data in the ferroelectric phase ofnano2

Yurtseven, H.; Kiracı, Ali (Taylor&Francis INC, 2014-02-17)

We calculate the temperature dependence of the infrared frequencies of the TO and LO modes with the symmetries of A(1), B-1 and B-2 mainly in the ferroelectric phase of NaNO2. This calculation is carried out using the ...
Experience with clay in the basic design education

Memikoğlu, İpek; Sümengen Berker, Olgu; Tolun, Elif (2015)

Basic Design is a first year fundamental course that is taught in different disciplines such as architecture, design and fine arts. Basic Design introduces the basic concepts and principles of design and enables students ...
A sign of the past: Aliye berger

Okur Tolun, Elif (2015)

Aliye Berger , who has a privileged place in The Turkish Painting Art , stayed away from the generation clash of her time and various groupings. She was an artist who had an aim to acquire a place in art community. Her ...
Global Krizler için Doğrusal Profillere Dayalı Kontrol Şemaları ile Oluşturulan Erken Uyarı Sistemi

Türker Bayrak, Özlem; Aytaçoğlu, Burcu; Yüksel Haliloğlu, Ebru (2015)
Damping constant and the relaxation time calculated for the lowest-frequency soft mode in the ferroelectric phase of Cd2Nb2O7

Kiracı, Ali; Yurtseven, H. (Elsevier GMBH, 2016)

The temperature dependence of the phonon frequency omega(ph) and of the damping constant Gamma(sp) due to pseudospin-phonon coupling of the lowest-frequency soft mode is calculated in the ferroelectric phase near the ...
Primary school teachers perceptions about character education

Demirel, Melek; Özmat, Demet; İmgehan, Özkan Elgün (2016-09)

The aim of this study is to determine the perceptions of primary school teachers about character education. In this descriptive study, data were collected by using a survey questionnaire which required descriptive analysis. ...
Ring annulation versus alkylation of pyrrole with alpha-phosphoryl-alpha,beta-unsaturated ketones

Taşgın, Dilek Işık; Unaleroğlu, Canan (Pergamon-Elsevier Science LTD, 2016-09-29)

In this study; novel aryl, heteroaryl, pyrrolyl and phosphoryl groups containing pyrrolizines were synthesized by the ring annulation reaction of aryl or heteroaryl substituted alpha-phosphoryl-alpha,beta-unsaturated ketones ...

Now showing items 1-20 of 121

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