Browsing by Author "Cetinkaya, Sevil"
Now showing items 1-12 of 12
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APPLICATION OF NONLINEAR MODEL PREDICTIVE CONTROL BASED ON DIFFERENT MODELS TO BATCH POLYMERIZATION REACTOR
Cetinkaya, Sevil; Anakh, Duygu; Zeybek, Zehra; Hapoglu, Hale; Alpbaz, Mustafa (DIPTEM UNIV GENOA, 2011)In the present work, at the previously determined optimal conditions, to control batch polymerization reactor, Linear Generalized Predictive Control (LGPC) and Nonlinear Generalized Predictive Control (NLGPC) algorithm ... -
APPLICATION OF TEMPERATURE CONTROL IN A BATCH POLYMERIZATION REACTOR AT DIFFERENT OPTIMAL TEMPERATURES
Cetinkaya, Sevil; Durmazucar, Hasan H.; Zeybek, Zehra; Hapoglu, Hale; Alpbaz, Mustafa (GAZI UNIV, FAC ENGINEERING ARCHITECTURE, 2013)The generalized delta rule (GDR) algorithm with generalized predictive control (GPC) was used to control the temperature of a jacketed batch reactor in which styrene polymerization occurs under isothermal conditions. The ... -
Conductive potassium feldspar/polyaniline composites prepared by in situ chemical polymerization
Cetinkaya, Sevil; Karakisla, Meral; Oezer, Ali; Sacak, Mehmet (ELSEVIER SCIENCE SA, 2007)K-feldspar particles using potassium dichromate in an acidic aqueous medium. The effects of K-feldspar particle size, aniline concentration and temperature upon the PAn amount in the composite and the electrical surface ... -
Electrochemical study of pyrite-ovalbumin interaction in relation to flotation
Guler, Taki; Sahbudak, Kemal; Cetinkaya, Sevil; Akdemir, Unal (ELSEVIER SCIENCE BV, 2013)Ovalbumin (OVA), chicken egg albumin, is an environmentally friendly, non-toxic, cheap surface active agent. It has electrochemically active sulfhydryl residues in molecular structure. OVA adsorption on pyrite as an ... -
Green Synthesis of Iron Oxide Nanoparticles Using Black Tea Extract and Investigation of Its Properties
Cetinkaya, Sevil; Kutuk, Nursah (AMER SCIENTIFIC PUBLISHERS, 2018)Iron oxide nanoparticles (FeNPs) were synthesized by green method using black tea (BT) extract as a reducing agent at room temperature. The effect of polyphenol content on the formation of FeNPs was investigated. The ... -
IMPACT OF OVALBUMIN ON PYRITE FLOTATION IN THE ABSENCE AND PRESENCE OF METAL IONS
Guler, Taki; Sahbudak, Kemal; Akdemir, Unal; Cetinkaya, Sevil (OFICYNA WYDAWNICZA POLITECHNIKI WROCLAWSKIEJ, 2014)Recovery of gangue pyrite and its accidental activation are vital issues in flotation of complex sulfide ores. This work was performed by cyclic voltammetry (CV) and flotation tests to elucidate applicability of ovalbumin ... -
Optimal temperature control in a batch polymerization reactor using fuzzy-relational models-dynamics matrix control
Cetinkaya, Sevil; Zeybek, Zehra; Hapoglu, Hale; Alpbaz, Mustafa (PERGAMON-ELSEVIER SCIENCE LTD, 2006)In this work, fuzzy-relational models-dynamics matrix control (Fuzzy-DMC) was applied to the free radical solution polymerization of styrene in a jacketted batch reactor and its performance was examined to reach the required ... -
Preparation of poly(2-ethyl aniline)/kaolinite composite materials and investigation of their properties
Anakli, Duygu; Cetinkaya, Sevil (ELSEVIER SCIENCE BV, 2010)Conductive poly(2-ethyl aniline) (PEAn)/kaolinite composite was prepared by chemical polymerization in aqueous HCl medium in the presence of kaolinite particles by using potassium chromate (K2CrO4) as oxidant. Effects of ... -
Serum selenium and plasma malondialdehyde levels and antioxidant enzyme activities in patients with obsessive-compulsive disorder
Ozdemir, Ercan; Cetinkaya, Sevil; Ersan, Serpil; Kucukosman, Seda; Ersan, E. Erdal (PERGAMON-ELSEVIER SCIENCE LTD, 2009)There is mounting evidence indicating that reactive free radical species are involved in initiation and development of many different forms of human pathologies including psychiatric disorders. In the present study, we ... -
Synthesis and characterization of conductive poly(o-anisidine)/talc composite
Anakli, Duygu; Cetinkaya, Sevil; Karakisla, Meral; Sacak, Ehmet (GAZI UNIV, FAC ENGINEERING ARCHITECTURE, 2018)Conductive poly(o-anisidine) (POA)/talc composite was prepared by chemical polymerization of o-anisidine in the presence of talc using ammonium persulfate (APS) as oxidant. The polymerization parameters such as APS/o-anisidine ... -
Synthesis and characterization of poly(o-toluidine)/kaolinite conductive composites for humidity and temperature sensing
Boran, Filiz; Cetinkaya, Sevil; Karakisla, Meral; Sacak, Mehmet (PAMUKKALE UNIV, 2018)Conductive poly(o-toluidine)/kaolinite composite was synthesized via chemical polymerization of o-toluidine in the availability of kaolinite using ammonium persulfate as oxidizing agent. To investigate the use of the ... -
Synthesis of Conductive Polymer/Inorganic Material Composites and Characterization of Their Properties
Anakli, Duygu; Cetinkaya, Sevil; Karakisia, Meral (AMER SCIENTIFIC PUBLISHERS, 2018)In this work, conductive poly(2-ethyl aniline) (PEAn)/talc composite was prepared in the hydrochloric (HCl) medium by chemical polymerization of 2-ethyl aniline in the presence of talc using ammonium persulfate (APS) as ...
