Browsing Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi by Author "Eğitim Bilimleri Enstitüsü"
Now showing items 1-20 of 33
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Artificial neural networks approach for forecasting of monthly relative humidity in Sivas, Turkey
Gürlek, Cahit (2023)Relative humidity is a crucial parameter for various agricultural and engineering applications and atmospheric dynamics; hence its accurate and reliable estimation is essential. This study aims to predict monthly relative ... -
Comparison of Particle Shape, Surface Area, and Color Properties of the Calcite Particles Ground by Stirred and Ball Mill
Ulusoy, U.; Cayırlı, S.; Bayar, G.; Gokcen, H.S (2023)Since the particle size, shape, specific surface area, and purity of the ground calcium carbonate (GCC) decide its usability in the paper, paint, and plastic industries, the effect of grinding is important. However, the ... -
Comprehensive growth and characterization study of GeOx/Si
Baghdedi, Dhouha; Hopoğlu, Hicret; Sarıtaş, Sevda; Altuntaş, İsmail; Abdelmoula, Najmeddine; Gür, Emre; ŞenadımTüzemen, Ebru (15.02.2023)In this study, the reactive radio frequency magnetron sputtering (RFMS) method under varying thickness was used to deposit GeO x on Si substrate at room temperature. The effect of thickness on the structural and optical ... -
Comprehensive growth and characterization study of GeOx/Si
Baghdedi Dhouha; Hopoğlu Hicret; Sarıtaş Sevda; Demir İlkay; Altuntaş İsmail; Abdelmoula Najmeddine; Gür Emre; Şenadım Tüzemen Ebru (15.02.2023)In this study, the reactive radio frequency magnetron sputtering (RFMS) method under varying thickness was used to deposit GeO x on Si substrate at room temperature. The effect of thickness on the structural and optical ... -
Determination of Optical Properties of MOVPE‑Grown InxGa1‑xAs/ InP Epitaxial Structures by Spectroscopic Ellipsometry
Emine Kaynar; Muhammed Sayraç; İsmail Altuntaş; İlkay Demir (24.08.2022)InxGa1−xAs epitaxial layers with different AsH3 flows have been grown on InP substrate with the MOVPE system. It has been found that AsH3 flow variation affects the In concentration of InGaAs/InP structure because the ... -
Development of new adsorbents via microwave treatment magnetic PET synthesis from waste PET and investigation of TC removal
Mehtap ERŞAN, Hatice DOĞAN; Erşan, Mehtap; Doğan, Hatice (Elsevier, 2021)In this study; new, economic and environment friendly adsorbents were synthesized using waste polyethylene terephthalate based adsorbent, derived from waste PET bottles, WPET, nano-scale zero valent iron modified adsorbent ... -
Effect of Si-doped and undoped inter-layer transition time on the strain-compensated InGaAs/InAlAs QCL active region grown with MOVPE
Pertikel İzel; Demir İlkay (15.01.2023)In this study, we report the effect of the combination of Si-doped and undoped inter-layer transition time in the strain compensated In 0.67 Ga 0.33 As/In 0.36 Al 0.64 As quantum cascade laser (QCL) structure grown on ... -
Effect of substrate temperature on Raman study and optical properties of GeOx/ Si thin films
Baghdedi, Dhouha; Hopoğlu, Hicret; Demir, İlkay; Altuntaş, İsmail; Abdelmoula, Najmeddine; Şenadım, Tüzemen Ebru (14.10.2023)In this study, GeOx thin films were deposited onto Si substrates using the RF magnetron sputtering method. We looked at how the temperature of the substrate affected the Raman spectra and optical characteristics of ... -
Efficient Zinc Removal from Blast Furnace Sludge Using Choline Chloride–Malonic Acid: Towards Sustainable Recycling of Iron Extraction Waste
Chemical components of blast furnace sludge (BFS) of iron blast furnaces become a recyclable raw material in the furnace when a few contents including zinc (Zn) are selectively removed. Out of four deep eutectic ... -
ESTAŞ DOMESTIC AND NATIONAL NITRILE GLOVE PRODUCTION
Canpolat, Rahmi; Özaydın, Fatih; Azgın, Esin; Atcıyurt, Bayramcan; Şimşir, Mehmet; Mavuş, Osman; Yabaş, Ebru (2023)Although the role of entrepreneurship has been recognized by societies throughout history, the role of intrapreneurship in existing businesses is a relatively new phenomenon. Especially in recent years, with the acceleration ... -
Experimental insights toward carrier localization in in-rich InGaAs/InP as candidate for SWIR detection: Microstructural analysis combined with optical investigation
Arbia, Marwa Ben; Demir, İlkay; Kaur, Navpreet; Saidi, Faouzi; Zappa, Dario; Comini, Elisabetta; Altuntaş, İsmail; Maaref, Hassen (15.01.2023)Hyperspectral imaging has been flourished thanks to the huge investigation of the infrared spectrum from NIR to LWIR bands. The ternary InGaAs has been investigated herein in the context of studying the structural ... -
Experimental insights toward carrier localization in in-rich InGaAs/InP as candidate for SWIR detection: Microstructural analysis combined with optical investigation
Arbia Marwa Ben; Demir İlkay; Kaur Navpreet; Saidi Faouzi; Zappa Dario; Comini Elisabetta; Altuntaş İsmail; Maaref Hassen (15.01.2023)Hyperspectral imaging has been flourished thanks to the huge investigation of the infrared spectrum from NIR to LWIR bands. The ternary InGaAs has been investigated herein in the context of studying the structural ... -
High-quality AlN growth: a detailed study on ammonia flow
Yolcu Gamze; Koçak Merve Nur; Ünal Dudu Hatice; Altuntaş İsmail; Demir İlkay (25.01.2023)High crystalline and optical quality aluminum nitride (AlN) films with thin thickness have been grown on Al2O3 by MOVPE (metal-organic vapor phase epitaxy) and the NH3 flow rate has been changed to improve the morphology and ... -
High-quality AlN growth: a detailed study on ammonia flow
Yolcu, Gamze; Koçak, Merve Nur; Ünal, Dudu Hatice; Altuntaş, İsmail; Demir, İlkay (25.01.2023)High crystalline and optical quality aluminum nitride (AlN) films with thin thickness have been grown on Al2O3 by MOVPE (metal-organic vapor phase epitaxy) and the NH3 flow rate has been changed to improve the morphology and ... -
In-situ thermal cleaning of the sapphire substrate and temperature effect on epitaxial AlN
Merve Nur Koçak; Gamze Yolcu; Sabit Horoz; İsmail Altuntaş; İlkay Demir (3.09.2022)The impact of thermal surface cleaning on epitaxial AlN thin films grown on sapphire is investigated in this study at various temperatures. The sapphire substrate is cleaned in a hydrogen environment. Structural, optical, ... -
Influence of Highly Efficient Carbon Doping on AlxGa1− xAs Layers with Different Al Compositions (x) Grown by MOVPE
Pertikel, İzel; Kekül, Reyhan; Altuntaş, İsmail; Gür, Emre; Demir, İlkay (27.06.2023)Carbon (C)-doped aluminum gallium arsenide ( AlxGa1−xAs) epitaxial layers with different aluminum (Al) concentrations have been grown on gallium arsenide (GaAs) substrates by metalorganic vapor phase epitaxy (MOVPE) ... -
Influence of Highly Efficient Carbon Doping on AlxGa1− xAs Layers with Different Al Compositions (x) Grown by MOVPE
İzel Pertikel; Reyhan kekül; İsmail Altuntaş; Emre Gür; İlkay Demir (27.06.2023)Carbon (C)-doped aluminum gallium arsenide ( AlxGa1−xAs) epitaxial layers with different aluminum (Al) concentrations have been grown on gallium arsenide (GaAs) substrates by metalorganic vapor phase epitaxy (MOVPE) ... -
Ingaas Gunn Diyodu Tabanlı Isık Yayan Aygıtlar
Ayşe Erol; İlkay Demir (01.08.2020)Ingaas Gunn Diyodu Tabanlı Isık Yayan Aygıtlar -
InGaAs-based Gunn light emitting diode
G. Kalyon; S. Mutlu; F. Kuruoglu; I. Pertikel; I. Demir; A. Erol (14.02.2023)We report an n-type In0.53Ga0.47As based Gunn light emitting diode operated at around 1.6 μm. The device structure comprises of an n-type In0.53Ga0.47As epilayer with a thickness of 5 μm grown by Metal Organic Vapour Phase ... -
Investigating the optical, electronic, magnetic properties and DFT of NiO films prepared using RF sputtering with various argon pressures
Hopoğlu, Hicret; Kaya, Dogan; Maslov, Mikhail M.; Kaya, Savas; Demir, İlkay; Altuntaş, İsmail; Ungan, Fatih; Akyol, Mustafa; Ekicibil, Ahmet; Şenadım, Tüzemen Ebru (28.04.2023)In this study, we investigated the structural, optical, magnetic, and conductive properties of nickel oxide (NiO) films on glass substrates deposited using Radio Frequency (RF) magnetron sputtering with varying Ar ...