Search Results - "Celik, Sabri"

Dynamic Pricing and Lead-Time Quotation for a Multiclass Make-to-Order Queue by Celik, Sabri, Maglaras, Costis

“…This paper considers a profit-maximizing make-to-order manufacturer that offers multiple products to a market of price and delay sensitive users, using a model…”
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Revenue Management with Costly Price Adjustments by Celik, Sabri, Muharremoglu, Alp, Savin, Sergei

“…We consider a novel variant of the perishable inventory profit management problem faced by a firm that sells a fixed inventory over a finite horizon in the…”
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Teachers' Opinions on Assessing Their Supervisors by Celik, Sabri

“…This study, which is aimed at revealing the opinions of teachers who work at primary schools with regards to the personnel record report prepared by school…”
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Density functional theory computation of organic compound penetration into sepiolite tunnels by Karatas, Deniz, Tekin, Adem, Celik, Mehmet Sabri

“…Sepiolite is a fibrous clay mineral and consists of 2:1 silicate blocks connected at the corners and separated by tunnels (channels on external surfaces) that…”
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Correlation of Flotation Recoveries and Bubble–Particle Attachment Time for Dodecyl Ammonium Hydrochloride/Frother/Quartz Flotation System by Khandjamts Batjargal, Onur Güven, Orhan Ozdemir, Feridun Boylu, Yusuf Enes Pural, Mehmet Sabri Çelik

“…Recent studies in the flotation of fine particles have necessitated new techniques and analyses for developing various strategies. Particularly, the…”
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Adsorption Kinetics of Various Frothers on Rising Bubbles of Different Sizes under Flotation Conditions by Khandjamts Batjargal, Onur Guven, Orhan Ozdemir, Stoyan I. Karakashev, Nikolay A. Grozev, Feridun Boylu, Mehmet Sabri Çelik

“…This paper studies the effect of the type and concentration of selected frothers, the gas flowrate, and the pore size of the porous frit on the bubble sizes…”
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Frothing Performance of Frother-Collector Mixtures as Determined by Dynamic Foam Analyzer and Its Implications in Flotation by Khandjamts Batjargal, Onur Guven, Orhan Ozdemir, Stoyan I. Karakashev, Nikolay A. Grozev, Feridun Boylu, Mehmet Sabri Çelik

“…In recent years, most of the studies have been adapted to determine the optimum conditions for the flotation of very fine minerals. In this context, besides…”
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Experimental Procedure for the Determination of the Critical Coalescence Concentration (CCC) of Simple Frothers by Onur Guven, Khandjamts Batjargal, Orhan Ozdemir, Stoyan I. Karakashev, Nikolay A. Grozev, Feridun Boylu, Mehmet Sabri Çelik

“…In this study, the critical coalescence concentrations (CCC) of selected commercial frother solutions, namely polypropylene glycols (PPG 200, 400, and 600),…”
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On the frother’s strength and its performance by Karakashev, Stoyan I., Grozev, Nikolay A., Ozdemir, Orhan, Batjargal, Khandjamts, Guven, Onur, Ata, Seher, Bournival, Ghislain, Boylu, Feridun, Sabri Çelik, Mehmet

“…It is a common rule that the strength of the frother is assessed by either its dynamic foamability index (DFI) or its critical coalescence concentration (CCC)…”
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Wetting properties of blood lipid fractions on different titanium surfaces by Koca, Revan Birke, Güven, Onur, Çelik, Mehmet Sabri, Fıratlı, Erhan

“…Background Blood is the first tissue contacting the implant surface and starting the biological interactions to enhance osseointegration and stimulate bone…”
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Adsorption of anionic surfactants onto sepiolite by Özdemir, Orhan, Çınar, Mustafa, Sabah, Eyüp, Arslan, Fatma, Çelik, Mehmet Sabri

“…Anionic surfactants constitute the main ingredients of detergents and a number of surfactant formulations used in a spectrum of diverse industries. The aim of…”
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Clay Mineral Batch Process for Color Removal of Textile Wastewaters by Armagan, Bulent, Ozdemir, Orhan, Turan, Mustafa, Sabri Celik, M.

“…Textile industry effluents exhibit large amounts of dye chemicals, which create severe water pollution. It is therefore important to reduce the dye…”
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Variance reduction techniques: Experimental comparison and analysis for single systems by Sabuncuoglu, Ihsan, Fadiloglu, Mehmet Murat, Çelik, Sabri

“…We provide a thorough analysis of the effectiveness of different Variance Reduction Techniques (VRTs). We consider both stand-alone and combined applications…”
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Characterization of organo-bentonites obtained from different linear-chain quaternary alkylammmonium salts by Ilker, Erkan, Alp, Ibrahim, Celik, Mehmet Sabri

“…The effects of surfactants on bentonites have been of great scientific interest for many years. Even though quaternary alkylammonium salts (QAS) have been…”
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What Are the Factors Comprising Postgraduate Education Demands, and What Are Levels of Agreement with These Factors? by Celik, Sabri

“…The aim of this survey is to evaluate the reasons behind the demand for postgraduate programs and the relationships between these reasons among disciplines…”
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Dynamic pricing and lead-time quotation for a multiclass make-to-order queue by Celik, Sabri, Maglaras, Costis

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Effect of negative inertial forces on bubble-particle collision via implementation of Schulze collision efficiency in general flotation rate constant equation by Kouachi, Sabri, Vaziri Hassas, Behzad, Hassanzadeh, Ahmad, Çelik, Mehmet Sabri, Bouhenguel, Mustapha

“…[Display omitted] •The effect of negative inertial force on flotation rate constant was investigated.•The GSE and Schulze collision models were compared…”
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Sepiolite: An Effective Bleaching Adsorbent for the Physical Refining of Degummed Rapeseed Oil by Sabah, E, Celik, M.S

“…The efficiency of Turkish sepiolite in bleaching degummed rapeseed oil has been investigated. Experimental results indicate that the bleaching efficiency is…”
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Ultrafine coal dewatering: Relationship between hydrophilic lipophilic balance (HLB) of surfactants and coal rank by Vaziri Hassas, Behzad, Karakaş, Fırat, Çelik, Mehmet Sabri

“…Dewatering process is one of the most costly steps in mineral processing and coal washing plants. This fact becomes an important industrial challenge in…”
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Preparation and characterization of highly pure silica from sedge as agricultural waste and its utilization in the synthesis of mesoporous silica MCM-41 by Ghorbani, Farshid, Habibollah Younesi, Mehraban, Zahra, Çelik, Mehmet Sabri, Ghoreyshi, Ali Asghar, Anbia, Mansoor

“…► The process of white ash synthesis of amorphous silica from sedge weed was studied. ► Successfully use of extracted silica precursor for synthesis of…”
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