• Efficiency of the generalized-difference-based weighted mixed almost unbiased two-parameter estimator in partially linear model 

  Akdeniz, Fikri; Roozbeh, Mahdi (TAYLOR & FRANCIS INC, 2017)

  In this paper, a generalized difference-based estimator is introduced for the vector parameter in partially linear model when the errors are correlated. A generalized-difference-based almost unbiased two-parameter estimator ...

• Thin film characterization of novel phthalimide materials 

  Şen, Sibel; Capan, Rifat; Ozel, Mehmet Emin; Hassan, A. K.; Turhan, O.; Namli, H. (NATL INST OPTOELECTRONICS, 2011)

  Spin coating technique is employed to produce thin phthalimide films using novel p-phthalimidobenzoic acid (FIBA) and N-(phthalimido)-p-aminobenzoic acid (FIABA) materials. Several spin speeds and various solution ...

• Restricted estimator in two seemingly unrelated regression model 

  Erdugan, Funda; Akdeniz, Fikri (unıv punjab, 2016)

  This article is concerned with the estimation problem of multicollinearity in two seemingly unrelated regression (SUR) equations with linear restrictions. We propose a restricted feasible SUR estimates of the regression ...

• Neural network based VO2max prediction models using maximal exercise and non-exercise data [Maksimal egzersiz ve egzersize dayali olmayan verileri kullanarak sinir agi tabanli VO2MAX tahmin modelleri] 

  Aktarla ,Ece; Akay, Mehmet Fatih; Aktürk, Erman; Açikkar, Mustafa (2013)

  Artificial Neural Network (ANN) models based on maximal and non-exercise (N-Ex) variables are developed to predict maximal oxygen uptake (VO 2max) the input variables of the dataset are gender, age, body mass index (BMI), ...

• Xmm-newton observatıons of lumınous sources ın nearby galaxıes ngc 4395, ngc 4736, and ngc 4258 

  Akyuz, A.; Kayaci, S.; Avdan, H.; Özel, Mehmet Özel; Sonbas, E.; Balman, S. (IOP PUBLISHING LTD, 2013)

  We present the results of a study of non-nuclear discrete sources in a sample of three nearby spiral galaxies (NGC 4395, NGC 4736, and NGC 4258) based on XMM-Newton archival data supplemented with Chandra data for spectral ...

• Near-resonant diurnal reactions: A physical model applicable to origin of life processes 

  Budding, Edwin; Akı, Cüneyt; Demircan, Osman; Gündüz, Bülent; Gündüz, Güngör; Emin özel, Mehmet (2012)

  We adopt that the large residual chemical potential energy (CPE) among reagents of the biosphere constitutes the key physical problem posed by life. We associate the formation of this CPE with the nearresonant behaviour ...

• The distribution of the Liu-type estimator of the biasing parameter in elliptically contoured models 

  Arashi, M.; Nadarajah, Saralees; Akdeniz, Fikri (Taylor & Francıs ınc, 2017)

  We derive the density function of the stochastic shrinkage parameters of the Liu-type estimator in elliptical models. The correctness of derivation is checked by simulations. A real data application is also provided.

• Efficiency of the generalized difference-based liu estimators in semiparametric regression models with correlated errors 

  Akdeniz, Fikri; Duran, Esra Akdeniz; Roozbeh, Mahdi; Arashi, Mohammad (TAYLOR & FRANCIS LTD, 2015)

  In this paper, a generalized difference-based estimator is introduced for the vector parameter beta in the semiparametric regression model when the errors are correlated. A generalized difference-based Liu estimator is ...

• Optical parameters of calix[4]arene films and their response to volatile organic vapors 

  Özbek, Z.; Capan, R.; Göktas, H.; Şen, S.; İnce, F. G.; Özel, Mehmet Emin; Davis, F. (ELSEVIER SCIENCE SA, 2011)

  The Langmuir-Blodgett (LB) technique was employed to produce thin LB films using an amphiphilic calix-4-resorcinarene onto different substrates such as quartz, gold coated glass and quartz crystals. The characteristics of ...

• p-phthalimidobenzoic thin film for volatile organic vapor detection 

  Şen, Sibel; Çapan, Rifat; Özel, Mehmet Emin; Hassan A.K.; Namli H.; Turhan O. (2010)

  Thin films of the molecule of p-phthalimidobenzoic acid (FIBA) have been deposited by spin coating and are studied for application as sensing membrane for the detection of alcohols. Atomic force microscopy (AFM) and surface ...

• Existence of absorbing set for a nonlinear wave equation 

  Kurt , Ayfer (2002)

  We prove the existence of an absorbing set for a Cauchy problem involving a nonlinear wave equation.

• A new difference-based weighted mixed Liu estimator in partially linear models 

  Akdeniz, Esra; Akdeniz, Fikri; Roozbeh, Mahdi (TAYLOR & FRANCIS LTD, 2018)

  In this paper, a generalized difference-based estimator is introduced for the vector parameter beta in the partially linear model when the errors are correlated. A generalized difference-based Liu estimator is defined for ...

• Lookıng into the fireball: rotse-ııı and swıft observatıons of early gamma-ray burst afterglows 

  Rykoff, E. S.; Aharonian, F.; Akerlof, C. W.; Ashley, M. C. B.; Barthelmy, S. D.; Flewelling, H. A.; Gehrels, N.; Gogus, E.; Guver, T.; Kiziloglu, Ue.; Krimm, H. A.; McKay, T. A.; Özel, Mehmet; Phillips, A.; Quimby, R. M.; Rowell, G.; Rujopakarn, W.; Schaefer, B. E.; Smith, D. A.; Vestrand, W. T.; Wheeler, J. C.; Wren, J.; Yuan, F.; Yost, S. A. (IOP PUBLISHING LTD, 2009)

  We report on a complete set of early optical afterglows of gamma-ray bursts (GRBs) obtained with the Robotic Optical Transient Search Experiment (ROTSE-III) telescope network from 2005 March through 2007 June. This set is ...

• Revıvıng some geometrıc aspects of shrınkage estımatıon ın lınear models 

  Akdeniz, Fikri; Özturk, Fikri (ANKARA UNIV, FAC SCI, 2019)

  It is well known that the least squares estimator is the best linear unbiased estimator of the parameter vector in a classical linear model. But, it is 'too long' as a vector and unreliable, confidence intervals are broad ...

• Neural Network Based VO(2)max Prediction Models Using Maximal Exercise and Non-Exercise Data 

  Aktarla, Ece; Akay, M. F.; Akturk, Erman; Acikkar, Mustafa (IEEE, 2013)

  Artificial Neural Network (ANN) models based on maximal and non-exercise (N-Ex) variables are developed to predict maximal oxygen uptake (VO(2)max) the input variables of the dataset are gender, age, body mass index (BMI), ...

• Generalized difference-based weighted mixed almost unbiased ridge estimator in partially linear models 

  Akdeniz, Fikri; Roozbeh, Mehdi (Springer New York LLC, 2017)

  In this paper, a generalized difference-based estimator is introduced for the vector parameter (Formula presented.) in partially linear model when the errors are correlated. A generalized difference-based almost unbiased ...

• Asymptotic behavior of the zero solutions to generalized pipe and rotating shaft equations 

  Kurt, Ayfer (2000)

  A non-autonomous partial differential equation describing the dynamics of a uniform pipe and a system describing the dynamics of a rotating shaft are considered. Sufficient conditions for the global asymptotic stability ...

• Grb 081008: from burst to afterglow and the transıtıon phase ın between 

  Yuan, F.; Schady, P.; Racusin, J. L.; Willingale, R.; Kruehler, T.; O'Brien, P. T.; Greiner, J.; Oates, S. R.; Rykoff, E. S.; Aharonian, F.; Akerlof, C. W.; Ashley, M. C. B.; Barthelmy, S. D.; Filgas, R.; Flewelling, H. A.; Gehrels, N.; Goegues, E.; Guever, T.; Horns, D.; Kiziloglu, Ue.; Krimm, H. A.; McKay, T. A.; Özel, Mehmet Emin; Phillips, A.; Quimby, R. M.; Rowell, G.; Rujopakarn, W.; Schaefer, B. E.; Vestrand, W. T.; Wheeler, J. C.; Wren, J. (IOP PUBLISHING LTD, 2010)

  We present a multi-wavelength study of GRB 081008, at redshift 1.967, by Swift, ROTSE-III, and Gamma-Ray Burst Optical/NearInfrared Detector. Compared to other Swift GRBs, GRB 081008 has a typical gamma-ray isotropic ...

• A search for supernova remnants in the nearby spiral galaxy M 74 (NGC 628) 

  Sonbaş, E.; Akyüz, A.; Balman, Ş.; Özel, Mehmet Emin (2010)

  An optical search was carried out for supernova remnants (SNRs) in the Sc type nearby spiral galaxy M74, using ground-based observations at the TUBITAK National Observatory (TUG, Antalya/Turkey) and the Special Astrophysics ...

• Performance comparison of different regression methods for VO2max ESTIMATION [VO2max tahmini için farkli regresyon yöntemlerinin performans Karsilastirmas] 

  Aktürk, Erman; Akay, Mehmet Fatih; Kilitçioğlu, Hasan (2013)

  The purpose of this paper is to develop maximal oxygen uptake (VO 2max) models by using different regression methods such as Multilayer Feed-Forward Artificial Neural Networks (MFANN's), Support Vector Regression (SVR), ...

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