Browsing by Author "Depci, Tolga"
Now showing items 21-40 of 41
-
Multipurpose acetic acid functionalized carbazole derivatives: Synthesis, electrochemical properties and electrochromic device applications
Hacıoğlu, Şerife Özdemir; Yiğit, Deniz; Akbey, Tuba E.; Udum, Yasemin Arslan; Güllü, Mustafa; Depci, Tolga; Toppare, Levent (Elsevier, 2022)In this study, synthesis of two multifunctional acetic acid functionalized carbazole bearing monomers; 2-(3,6-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-9H-carbazol-9-yl)acetic acid (M1) and 3,6-dithien-2-yl-9H-carbaz ... -
Natural hydroxyapatite obtained from pufferfish teeth for potential dental application
Doğdu, Servet Ahmet; Turan, Cemal; Depci, Tolga; Ayas, Deniz (Hanyang University, 2021)Hydroxyapatite and associated calcium phosphate ceramic materials are commonly applied as implant resources because of their close resemblance in structure with natural bone. In the present study, the elemental composition ... -
A New Insight into Formulation Approach for Water Based Drilling Fluids
Yalman, Emine; Federer-Kovacs, Gabriella; Depci, Tolga (Slovnaft VURUP a.s, 2022)The objective of this study is to develop a water-based drilling fluid with enhanced rheological and filtation characteristics by using a coal combustion by product which is known as fly ash (CCA). To this end, initially, ... -
Non-fullerene organic photovoltaics based on thienopyrroledione comprising random copolymers; effect of alkyl chains
Yasa, Mustafa; Depci, Tolga; Alemdar, Eda; Hacıoğlu, Şerife Özdemir; Çırpan, Ali; Toppare, Levent (Elsevier, 2021)Two new random donor-acceptor (D-A) copolymers, signed as P1 and P2, were designed and synthesized. Electrochemical and spectroelectrochemical measurements were performed to investigate absorption, energy levels, electronic ... -
Optically stimulated luminescence characteristics of BeO nanoparticles synthesized by sol-gel method
Altunal, Volkan; Yegingil, Zehra; Tüken, Tunç; Depci, Tolga; Özdemir, Adnan; Güçkan, Veysi; Nur, Necmettin; Kurt, Kasım; Bulur, Enver (Elsevier, 2018)Optically Stimulated Luminescence (OSL) properties of the sol-gel synthesized nano-powders of Beryllium Oxide (BeO) were investigated. Luminescence properties of BeO nanoparticles are dependent on the crystal structure, ... -
Peat and lignite leaching process with tetralin in autoclave to produce oil
Depci, Tolga; Karta, Mesut (Oficyna Wydawnicza Politechniki Wroclawskiej, 2018)Instead of directly burning a lignite having low calorific value and peat, the Elbistan lignite (L) and the Adiyaman peat (P) were mixed and leached in an autoclave to obtain an oil to not only provide the demand for energy ... -
Pomza, kuvarsit ve diatomitten üretilen amorf silikanın sondaj çamuruna etkisi
Aydın, Mustafa Göktan (İskenderun Teknik Üniversitesi / Mühendislik ve Fen Bilimleri Enstitüsü / Petrol ve Doğal Gaz Mühendisliği Anabilim Dalı, 2020)Sondaj operasyonunun en önemli bileşenlerinin başında sondaj çamuru gelmektedir. Su bazlı sondaj çamuru dünya çapında en sık kullanılan sondaj çamuru tipidir. Sondaj çamurunun akış özelliklerinin istenilen seviyelerde ... -
Production of new electromagnetic wave shielder mortar using waste mill scales
Öztürk, Murat; Depci, Tolga; Bahçeci, Ersin; Karaaslan, Muharrem; Akgöl, Oğuzhan; Sevim, Umur Korkut (Elsevier, 2020)Electromagnetic (EM) wave shielder mortar can be produced by mixing cement, natural limestone, tap water with mill scale (mill scale-I and mill scale-II) which is one of the biggest disposal area problems of the iron-steel ... -
A Review on Wind Power Forecasting Regarding Impacts on the System Operation, Technical Challenges, and Applications
Depci, Tolga; İnci, Mustafa; Savrun, Murat Mustafa; Büyük, Mehmet (Wiley, 2022)Wind power forecasting's (WPF) technical improvements exhibit that the smooth forecasting of wind power is essential in executing operational management like energy balance, grid reliability, scheduling maintenance, and ... -
Selective Copper Recovery with HCl Leaching from Copper Oxalate Material
Sarı, Zeynel Abidin; Turan, M. Deniz; Nizamoğlu, Hasan; Demiraslan, Aslıhan; Depci, Tolga (Springer Heidelberg, 2020)In this study, recovery of copper from solid material (obtained by leaching of chalcopyrite with oxalic acid in the presence of hydrogen peroxide) with a copper oxalate structure was carried out selectively using HCl. The ... -
The semi-empirical determination of KLL Auger, Kα1 and Kα2 X-ray line widths for sulfur atom in new 1,2,4-triazol compounds containing thiophene ring
Aylıkçı, Nuray Küp; Sancak, Kemal; Aylıkçı, Volkan; Tıraşoğlu, Engin; Ünlüer, Dilek; Depci, Tolga (Elsevier Science, 2018)In this study K-alpha 1, K-alpha 2 and KLL Auger line widths were determined semi-empirically by using K shell fluorescence yields of sulfur even if K-alpha X-ray lines cannot be resolved in our detector system. The samples ... -
Significant enhancement of superconducting performances of Bi-2212 fibers through combined sodium substitution and LFZ process
Gürsul, Mehmet; Ergin, I.; Özçelik, Can; Depci, Tolga; Özçelik, Bekir; Madre, María Antonieta; Sotelo, Andrés E. (Springer, 2021)This paper reports the microstructure, magnetoresistivity, electrical and superconducting properties of Bi-2212 fibers with Na+ ions incorporated into a superconducting matrix prepared by a polymer solution method and ... -
Studying CaSO4:Eu as an OSL phosphor
Güçkan, Veysi; Altunal, Volkan; Nur, Necmettin; Depci, Tolga; Özdemir, Adnan; Kurt, Kasım; Yu, Yan; Yeğingil, İlhami; Yeğingil, Zehra (Elsevier, 2017)This study was carried out to investigate the properties of the OSL signal from Eu-doped calcium sulfate (CaSO4:Eu) phosphor and study on its thermal behavior as a function of temperature under a series of luminescence ... -
Synergetic effect of waste tire rubber and mil scale on electromagnetic wave attenuation properties of new generation mortar
Öztürk, Murat; Depci, Tolga; Karaaslan, Muharrem; Sevim, Umur Korkut; Akgöl, Oğuzhan; Özdemir, Hacıoğlu Şerife (Elsevier, 2020)In this study, the behaviors of cement based building materials containing a certain amount of crumb rubbers (CR) and mill scales as additives were explored. For this purpose, five different CR content by volume of the ... -
Synthesis and characterization of whitlockite from sea urchin skeleton and investigation of antibacterial activity
Yücel, Ayşegül; Sezer, Selda; Birhanlı, Emre; Ekinci, Tuba; Yalman, Emine; Depci, Tolga (Elsevier, 2021)In the present study, undoped whitlockite and ZnO doped-Whitlockite, which is the second most abundant inorganic material in bone structure, were synthesized from sea urchin skeleton. The obtained bioceramic ma-terials ... -
Synthesis of a Multifunctional Quinoxaline and Benzodithiophene Bearing Polymer and Its Electrochromic Device Applications
Yaşa, Mustafa; Sürmeli, Seher; Depci, Tolga; Toppare, Levent; Hacıoğlu, Şerife Özdemir (Wiley-V C H Verlag Gmbh, 2020)A quinoxaline (Qx) and benzodithiophene (BDT) comprising of random copolymers, namely poly(5-(6-(5-(4,8-bis((2-ethylhexyl)oxy)benzo[1,2-b:4,5-b ']dithiophen-2-yl)-4-(2-ethylhexyl)thiophen-2-yl)-4,8-bis ((2-ethylhexyl)oxy ... -
Synthesis, electrochromic characterization and solar cell application of thiophene bearing alternating copolymers with azobenzene and coumarin subunits
Kalay, Hüseyin; Yiğit, Deniz; Hızalan, Gönül; Güllü, Mustafa; Depci, Tolga; Çırpan, Ali; Toppare, Levent; Hacıoğlu, Şerife Özdemir (Taylor & Francis, 2020)In this study, azobenzene and coumarin functionalized thiophene comprising two copolymers (poly (4-((3"'-hexyl-[2,2 ':5 ',2 '':5 '',2"'-tetrathiophene] - 3 '-yl)methoxy) - 2H-chromen-2-one (P1) and poly (1-(4-((4"'-hexyl-[2,2 ... -
Thermoluminescence of hydroxyapatite from eggshell powders doped with Dy synthesized by the sonication chemical method: Effects of doping concentration and heating rate
Bulcar, Kenan; Oğlakçı Mehmet; Yücel, Ayşegül; Sezer, Selda; Madkhali, O. Ali A.; Depci, Tolga; Topaksu, Mustafa; Can, Nurdoğan (Elsevier, 2022)Hydroxyapatite (HAP) was selected as the host material and synthesized using a sonication chemical method. The effect of Dy3+ ion doping concentrations (0.25, 0.5, 1, 2, 3, 4, 5, 7, and 10 wt%) on the structure and ... -
Thermoluminescence properties of strontium doped magnesium tetraborate
Nur, Necmettin; Evis, Dündar; Bahçeci, Ersin; Depci, Tolga; Yıldırım, Rabia Güler; Kafadar, Vural Emir (Elsevier, 2019)It is worth to continuous and systematic investigations related with magnesium tetraborate (MBO) due to its attractive candidate for dosimetric application. The study was done to develop new phosphor with adding strontium ... -
Thiadiazoloquinoxaline and benzodithiophene bearing polymers for electrochromic and organic photovoltaic applications
Hacıoğlu, Şerife Özdemir; Ataoğlu, Emre; Hızalan, Gönül; Depci, Tolga; Çırpan, Ali; Toppare, Levent (Taylor & Francis Ltd, 2019)Two novel thiadiazoloquinoxaline and benzodithiophene (BDT) bearing copolymers were designed and synthesized. Different BDT units (alkoxy and thiophene substituted) were used as donor materials and the effect of alkoxy and ...
