Browsing Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi by Language "eng"
Now showing items 101-120 of 272
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Exergy Analysis of Graphene-Based Nanofluids in a Compact Heat Exchanger
(TURKISH SOCIETY OF THERMAL SCIENCES AND TECHNOLOGY, 2022)In this study, the exergy analysis of graphene-based nanofluids in a compact heat exchanger is examined. In experiments using distilled water as the base fluid, graphene nano-ribbon and graphene oxide nanofluids were used ... -
Experimental Analysis of Different Refrigerants’ Thermal Behavior and Predicting Their Performance Parameters
(2023)This study experimentally compares thermodynamic performance of R290 and R404A refrigerants in a refrigeration system. In the first part of the paper, energy analysis of the refrigeration system was performed at various ... -
Experimental and Density Functional Theoretical Analyses on Degradation of Acid Orange 7 via UV Irradiation and Ultrasound enhanced by Fenton Process
(Elsevier, 2023)In this study, Acid Orange 7 (AO7) removal from synthetic water by advanced oxidation processes was investigated. Within the scope of the study, individual and different integrated applications of Fenton re- action, ... -
Experimental comparison of R290 and R600a and prediction of performance with machine learning algorithms
(2023)The use of alternative refrigerants is among the popular topics of the refrigeration industry. In the first part of this study, thermodynamic performances of R290 and R600a gases were compared in a vapor compression ... -
Experimental exergy analysis of low-GWP R290 refrigerant and derivation of exergetic performance equations with regression algorithms
(2023)This study analyses the derivation of performance equations for a refrigeration system operating with R290 and R404A refrigerants using different regression models. Results of pace regression for coefficient of performance ... -
Experimental Heat Transfer Analysis from Helical Coiled Tubes with the Same Surface Area
(2023)Helical coiled tubes are commonly used inserted in water storage tank. In this study, an experimental investigation was carried out to obtain heat transfer characteristics of different geometric dimensions in helical tubes ... -
Experimental insights toward carrier localization in in-rich InGaAs/InP as candidate for SWIR detection: Microstructural analysis combined with optical investigation
(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 Investigation of PV Panel Performance by Using PCM with Different Fin Geometries
(2023)During the photovoltaic (PV) conversion process, a significant amount of solar radiation is converted into heat, which increases the cell's temperature and reduces its efficiency. A system consisting of PCM and aluminium ... -
Experimental investigation of variable fin length on melting performance in a rectangular enclosure containing phase change material
(ELSEVIER, MAR 2023)The present study proposes a new technique to determine liquid fractions of phase change material during the melting process in a left-side heated rectangular enclosure. The effects of variable fin length arrangements on ... -
Experimental Study of Oxytetracycline Degradation Using Fenton-like Processes
(Springer, 2023)This study aimed to investigate the degradation efficiency of Oxytetracycline (OTC) using different Fenton processes. Fe2+ and nZVI reagents were used as Fenton reagents. To compare the effect on OTC degradation, Fenton ... -
Exploring potential biases towards blockbuster items in ranking-based recommendations
(Springer, 2022)Popularity bias is defined as the intrinsic tendency of recommendation algorithms to feature popular items more than unpopular ones in the ranked lists lists they produced. When investigating the adverse effects of popularity ... -
Extraction of sunflower oil with supercritical CO2: Experiments and modeling
(ELSEVIER SCIENCE BV, 2006)Extraction of sunflower oil from sunflower seeds (Heliantus annuus L.) using supercritical CO2 was studied. The shrinking core model was applied to the modeling of the packed-bed extraction process. The experimental data ... -
Fabrication and Characterization of High Performance PVDF-based flexible piezoelectric nanogenerators using PMN-xPT (x: 30, 32.5, and 35) particles
(Elsevier, 01/06/2023)Flexible piezoelectric nanogenerators based on polyvinylidene difluoride (PVDF) and lead magnesium niobate-lead titanate Pb(Mg1/3Nb2/3)O3–PbTiO3(PMN-xPT compositions for x between 30 and 35) particles with various filler ... -
Fabrication of polypyrrole enveloped reduced graphene oxide/iron oxide and determination of its photothermal properties
(2022)Recently photothermal therapy has been viewed as an alternative to cancer treatment methods, fabrication of photosensitizing agents with high photothermal conversion efficiency has gained importance. In this study, polypyrrole ... -
FDTD-based SAR calculation of a wearable antenna for wireless body area network devices
(INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES, 2023)Wireless-connected wearable electronics are finding extensive usage for diagnostic and therapeutic purposes after the globally spread pandemic disease of COVID-19. Although they are undoubtedly helpful for keeping physical ... -
First micropalaeontological record from the early and middle Eocene Mamuca Formation of the Dümrek Basin, western Central Anatolia, Turkey: Biostratigraphy, depositional history and palaeoclimate
(Elsevier, 2022)This study presents the stratigraphy, biostratigraphy and palaeoecology of a 420- m thick sequence of the Mamuca Formation (Dümrek Basin, Eskis¸ehir, Turkey). The age for the strata of the Mamuca Formation in the Çakıro˘glu ... -
Gallium oxide films deposition by RF magnetron sputtering; a detailed analysis on the effects of deposition pressure and sputtering power and annealing
(Elsevier, 2021)In this study, gallium oxide (Ga2O3) thin films were deposited on sapphire and n-Si substrates using Ga2O3 target by radio frequency magnetron sputtering (RFMS) at substrate temperature of 300 °C at variable RF power and ... -
Generation of Coherent Extreme Ultraviolet Radiation in an Air Gas Cell with a High Power Femtosecond Laser System
(Springer, 2021)High harmonic generation (HHG) in air medium is experimentally produced by using a state-ofthe-art high power laser system. The harmonic orders up to 35th harmonic are well observed. Optical power dependence of harmonic ... -
Generation of even and odd harmonics in the XUV region with controlling the relative delay and polarization of two-color fields
(Elsevier, 2021)We report high harmonic generation in the extreme ultraviolet (XUV) region by using two-color laser fields at the wavelengths of 800 nm and 400 nm. With a Ti: sapphire femtosecond laser at a 10 Hz repetition rate efficient ... -
Gis‑multi criteria decision analysis‑based land suitability assessment for dam site selection
(Springer, 2022)In this study, the appropriate areas were determined to select the most suitable dam sites within the borders of Sivas/Turkey with the help of Geographic Information System (GIS) according to the Analytical Hierarchy Process ...