Browsing by Author "Depci, Tolga"
Now showing items 1-20 of 39
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Characterization and evaluation of the antimicrobial properties of algal alginate; a potential natural protective for cosmetics
Sayın, Selin; Depci, Tolga; Naz, Mehmet; Sezer, Selda; Karaaslan, Merve Gökşin; Aras, Aycan; Uğur, Sinem; Çetin, Zafer; Saygılı, Eyüp İlker; Ateş, Burhan (Marmara University, 2022)Sargassurn vulgare was sampled by free dives in Iskenderun Bay, Hatay, Turkey, in September 2018. Sargassum vulgare is a material with high economic value because it has compounds that can be used in medical applications ... -
Characterization of thermoluminescence kinetic parameters of beta irradiated B doped Ca5(PO4)3OH powder obtained from eggshell
Depci, Tolga; Oğlakçı, Mehmet; Selda, Sezer; Yücel, Ayşegül; Doğan, Tamer; Souadi, Galib O.; Topaksu, Mustafa; Can, Nurdoğan (Elsevier, 2021)In this study, we have synthesized B doped Ca5(PO4)3OH (HAP) by a sonication chemical method. The thermoluminescence (TL) properties of the family of synthesized samples (B doped Ca5(PO4)3OH (HAP) were investigated using ... -
Co-liquefaction process olive bagasse and peat with lignite and the effect of biomasses on the products and oil yield
Depci, Tolga; Karta, Mesut; Karaca, Hüseyin (Elsevier, 2018)In the present study, instead of the burning the Elbistan lignite (L) having low calorific value and the biomasses (Balikesir Olive Bagasse "OB" and Adiyaman peat "P"), co-liquefaction process was conducted in order to ... -
A Comprehensive Study on Fuel Adulteration Sensing by Using Triple Ring Resonator Type Metamaterial
Bakır, Mehmet; Dalgaç, Şekip; Karaaslan, Muharrem; Karadağ, Faruk; Akgöl, Oğuzhan; Ünal, Emin; Depci, Tolga; Sabah, Cumali (Electrochemical Society Inc., 2019)A novel shaped metamaterial sensor application which is designed to operate in X band is proposed. A new sample holder for easy operation is designed and placed just behind the proposed structure in X band. Since the ... -
Cost Analysis of Inhibitive Drilling Fluids
Yalman, Emine; Federer-Kovacs, Gabriella; Depci, Tolga (International journal of energy studies, 2021)The main objective of this study is to provide a better understanding of inhibitive water-based drilling fluid's central cost drivers. In this study a comparison of costs is provided between two polymer drilling fluid ... -
Detailed low temperature studies on thermoelectric performance of K-doped Bi2Ca2Co2Oy ceramics fibers
Özçelik, Can; Depci, Tolga; Çetin, Gizem; Gürsul, Mehmet; Özçelik, Bekir; Madre, María Antonieta; Sotelo, Andrés; Ando, Hiroshi; Terashima, Kensei; Takano, Yoshihiko (Institute of Physics, 2022)The effect of K substitution for Ca in Bi2Ca2-xKxCo2Oy (x = 0.0, 0.05, 0.075, 0.10, and 0.125) thermoelectric ceramics, produced via laser floating zone (LFZ) method, have been systematically investigated. XRD patterns are ... -
The determination of the molecular weight profiles and biochemical compositions eight macroalgae species from Turkey
Saygılı, Eyüp İlker; Naz, Mehmet; Okudan, Emine Şükran; Çetin, Zafer; Benlier, Necla; Öğüt, Eda; Güngör, Meltem; Bakır, Seda Büşra; Karadeniz, Pınar Günel; Veziroğlu, Salih; Gülses, Aydın; Depci, Tolga; Aktaş, Oral Cenk; Sayın, Selin (Islamic Azad University of Tonekabon, 2022)Algae biomass could be one of the most important economic values in near future. For this reason, we determined the biochemical compositions and molecular weight profiles (MWPs) of eight macroalgae; Green Algae (Codium ... -
Development of novel inhibitive water-based drilling muds for oil and gas field applications
Yalman, Emine; Federer-Kovacs, Gabriella; Depci, Tolga; Al Khalaf, Hani; Aylıkçı, Volkan; Aydın, Mustafa Göktan (Elsevier, 2022)The aim of this study is to develop inhibitive drilling fluid systems generated from waste materials that can contribute to the reduction of potential well instability problems caused by drilling fluid based on rheological ... -
Development of Water-Based Drilling Fluid in Miticration of Differential Sticking Tenuency
Yalman, Emine; Federer-Kovacs, Gabriella; Depci, Tolga (University of Zagreb, 2022)The objective of the study is to design a drilling fluid that prevents differential pressure pipe sticking tendency caused by drilling fluid with fly ash that is an industrial waste generated from the combustion of coal. ... -
Distribution of trace elements and the influence of major-ion water chemistry in saline lakes
Mochizuki, Akihito; Murata, Takahiro; Hosoda, Ko; Dulmaa, Ayuriin; Ayushsuren, Chananbaatar; Ganchimeg, Darmaa; Drucker, Valentin V.; Fialkov, Vladimir A.; Depci, Tolga; Üner, Tijen; Oğhan, Fatih; Sugiyama, Masahito (Wiley, 2018)Although the water chemistry in saline lakes can differ drastically due to subtle differences in inflowing water conditions, the concentrations, distributions, and geochemical behaviors of trace elements in such environments ... -
Effect of Carbon Nanotube Addition on the Superconducting Properties of BSCCO Samples Textured via Laser Floating Zone Technique
Özçelik, Bekir; Ergin, I.; Depci, Tolga; Yavuz, Halil İbrahim; Madre, María Antonieta; Sotelo, Andres (Springer, 2019)In this research, the effect of carbon nanotube (CNT) addition on the structural and superconducting properties of Bi2Sr2CaCu2Oy + x wt% CNT materials with x = 0, 0.5, 1, and 3 prepared by solid state method, followed by ... -
Effect of n-CaCO3 on fresh, hardened properties and acid resistance of granulated blast furnace slag added mortar
Bankir, Müzeyyen Balçıkanlı; Öztürk, Murat; Sevim, Umur Korkut; Depci, Tolga (Elsevier, 2020)Nano size CaCO3 (n-CaCO3) particles were used as an additive into the Ground Granulated Blast Furnace Slag (GGBS) added mortar to investigate their effects on fresh, hardened properties and acid resistance. Setting time, ... -
Enhancing electrochemical and electrochromic performances of carbazole comprising monomer via copolymerization with 3,4-ethylenedioxythiophene (EDOT)
Kalay, Işıl; Yiğit, Deniz; Güllü, Mustafa; Depci, Tolga; Toppare, Levent; Hacıoğlu, Şerife Özdemir (Elsevier, 2020)In this study, two novel electrochromic copolymers (CoP1.3 and CoP1.5) were synthesized via electrochemical methods and characterized. The comonomers used in the synthesis were 3,4-ethylenedioxythiophene (EDOT) and a ... -
Exergetic Simulation and Performance Analysis of the Effect of Flow Patterns in PEMFCs
Mert, Suha Orçun; Toprak, M. M.; Depci, Tolga (Int Center Applied Thermodynamics, 2019)In this study, 6 different novel flow channels of the "proton exchange membrane" (PEM) type fuel cells were designed and modeled, while evaluations were conducted on three-dimensional channels of various designs using ... -
İskenderun körfezinde yetişen alglerin biyokütle özelliklerinin araştırılması
Aydemir, Rabia (İskenderun Teknik Üniversitesi / Lisansüstü Eğitim Enstitüsü / Petrol ve Doğal Gaz Mühendisliği Ana Bilim Dalı, 2021)İnsan gelişimi doğrudan ya da dolaylı olarak enerjinin var oluşu ve kullanışıyla bir ilişki içerisindedir. Enerjinin insan ihtiyaçlarını karşılayacak formda olması istenir. Bunun yanı sıra kullanılacak olan enerji türünün ... -
LFZ yöntemiyle üretilen potasyum (K) katkılı Bi2Ca2Co2Oy seramiğinin termoelektrik özelliklerinin araştırılması
Özçelik, Can (İskenderun Teknik Üniversitesi / Mühendislik ve Fen Bilimleri Enstitüsü / Metalurji ve Malzeme Mühendisliği Ana Bilim Dalı, 2021)Bu çalışmada, termoelektrik BiCa 2-x K x Co 2 O y seramik malzemeler (x = 0,0;0,05;0,075; 0,10 ve 0,125) için farklı formlarda (bulk, as-grown ve fiber olarak) klasik katı hal yöntemi ile üretilmiş ve lazer yüzer bölge ... -
Low temperature thermoelectric properties of Na-substituted Bi2Ca2Co2Oy ceramics fabricated via LFZ technique
Özçelik, Bekir; Çetin, Gizem; Gürsul, Mehmet; Özçelik, Can; Depci, Tolga; Madre, María Antonieta; Sotelo, Andrés E.; Ando, Hiroshi; Terashima, Kensei; Takano, Yoshihiko (Elsevier, 2022)In this work, Bi2Ca2-xNaxCo2Oy with x = 0.0, 0.05, 0.10, and 0.125 thermoelectric ceramic materials have been produced by the classical solid-state route, followed by texturing through the laser floating zone (LFZ) method. ... -
M Shell Fluorescence Parameters of Pt, Au and Tl Compounds with Oxygen and Bromide
Aylıkçı, Nuray Küp; Aylıkçı, Volkan; Tıraşoğlu, Engin; Depci, Tolga (Adıyaman University, 2019)In this study, Mβα X-ray production cross-sections and average M-shell fluorescence yields were determined by using EDXRF at 5.96 keV for Pt, Au and Tl compounds. The photo-peak areas were used for the measurement of M ... -
Microhydrogen production with water splitting from daily used waste aluminum
Aylıkçı, Nuray Küp; Mert, Suha Orçun; Aylıkçı, Volkan; Bahçeci, Ersin; Depci, Tolga; Oruç, Önder (Elsevier, 2021)In this study, different types of waste aluminum produced in daily life and their pure equivalents were evaluated and compared in terms of their hydrogen generation performance through the water-splitting reaction. An ... -
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 ...
