Mühendislik ve Doğa Bilimleri Fakültesi: Recent submissions
Now showing items 61-80 of 1307
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CZTS/phenylenediamine isomer nanocomposite electrodes for supercapacitor applications
(Elsevier, 2024)This study delves into the potential of Cu2ZnSnS4 (CZTS) and its phenylenediamine (PDA) derivative-modified nanocomposites as eco-friendly electrodes in supercapacitors, intending to enhance capacitance values in energy ... -
Knowledge-Based Methodology of CPW-Fed Open Stub Loaded C-Shaped Microstrip Antenna by Surrogate-Based Modeling
(Wiley, 2024)Antenna systems with more complicated geometries have been created as a result of evolving technology and rising performance standards in the industry. The geometric complexity of modern antennas makes it difficult for ... -
Performance assessment of ammonia as a turbofan engine fuel during various altitude levels
(Elsevier, 2024)This research is focused on analysing the thermodynamic performance outcomes of the ammonia-fueled turbofan engine. The assessment contains exergy sustainability, economic aspects, environmental impact, and energy and ... -
Electromagnetic wave absorption in polyaniline coated Y3Fe5O12/Carbon-Black hybrid composites
(Elsevier, 2024)Y3Fe5O12(YIG)(1-x)/Carbon-Black(CB)(x) (0.00 <= x <= 1.00; 0.25 steps) coated with polyaniline (PANI), forming a core-shell structure, were synthesized by in-situ polymerization following sol-gel and solid-state reactions. ... -
Liquefaction ground deformations and cascading coastal flood hazard in the 2023 Kahramanmaraş earthquake sequence
(SAGE Publications, 2024)The 2023 Kahramanmaraş earthquake sequence produced extensive liquefaction-induced ground deformations and ongoing flooding along the shoreline of the Mediterranean port city of İskenderun, Türkiye. This study compiles ... -
Effects of tool rotation direction on microstructure and mechanical properties of 6061 aluminum alloy joints by the synergistically double-sided friction stir welding
(Elsevier, 2024)In order to improve welding efficiency and joint performance of friction stir welded aluminum alloy plates of different thickness, a new synergistically double-sided friction stir welding (SDS-FSW) technique was developed ... -
Exploring the Impact of Lanthanum on Sodium Manganese Oxide Cathodes: Insight into Electrochemical Performance
(Wiley, 2024)This investigation focuses on nominally La-doped Na0.67MnO2, exploring its structural, electrochemical, and battery characteristics for Na-ion batteries. X-ray diffraction analysis reveals formation of composite materials ... -
Design, Synthesis, and Theoretical Studies on the Benzoxadiazole and Thienopyrrole Containing Conjugated Random Copolymers for Organic Solar Cell Applications
(Wiley, 2024)In this study, six different donor-π-acceptor1-π-donor-acceptor2 type random co-polymers containing benzodithiophene as a donor, benzooxadiazole (BO), and thieno[3,4-c]pyrrole-4,6-dione (TPD) as acceptor, have been synthesized ... -
Comparison of energy and exergy analysis of fuzzy logic and power follower control strategies in fuel cell electric vehicles
(Elsevier, 2024)With the increasing importance of green energy, traditional vehicles are being gradually replaced by hybrid electric vehicles, electric vehicles, and fuel cell electric vehicles (FCEVs), all of which emit minimal to no ... -
Enhanced CO2 Adsorption Capacity in Highly Porous Carbon Materials Derived from Melamine-Formaldehyde Resin
(American Chemical Society, 2024)The present study explores the synthesis of N-doped carbon materials with large surface porosity using commercial melamine-formaldehyde resin as the precursor and KOH as the activator. The resin was carbonized first and ... -
Exploring beta irradiation responses in Sr 2+-Doped hydroxyapatite: A thermoluminescence study
(Elsevier, 2024)This research investigates the structural and thermoluminescence (TL) properties of Sr2+-doped Ca5(PO4)3OH (HAp) phosphors. X-ray diffraction (XRD) analysis confirms that HAp has a hexagonal structure with a P63/m space ... -
Improved mechanical and fire-retardant properties of fiber-reinforced composites manufactured via modified resins and metallic thin films
(Springer, 2024)Fiber-reinforced polymeric composites have been extensively used in different industrial applications because of their excellent mechanical and other properties but have lower tolerance levels for fire and lightning damage. ... -
Simulational energy analyses of different transmission (automated manuel transmission vs continuously variable transmission) selection effects on fuel cell hybrid electric vehicles’ energetic performance
(Elsevier, 2024)In recent years, the adoption of alternative fuels and hybrid vehicles has necessitated radical changes to meet the energy needs of the automotive sector. Hybrid electric vehicles are used as a perfect step between traditional ... -
An effective MPPT control based on machine learning method for proton exchange membrane fuel cell systems
(Elsevier, 2024)This study proposes a machine learning-based maximum power point tracking method for fuel cell systems. Initially, a Matlab model was developed to accurately represent the behaviour of a proton exchange membrane fuel cell. ... -
Enhancing the thermal and mechanical properties of sulfonated peek fiber composites with reduced smoke density and toxicity
(Wiley, 2024)Polyether ether ketone (PEEK) sulfonation process is a reasonably easy but time-consuming to manufacture composites. This study focuses on altering PEEK powder in a sulfuric acid solution via a sulfonation process to develop ... -
Microstructural characterization and high-temperature wear behavior of refractory niobium-carbide growth in intermetallic iron-aluminide coatings
(Elsevier, 2024)Iron-aluminide (Fe-Al) intermetallics are characterized by their high-temperature oxidation resistance. However, their use in tribo-corrosive environments is limited due to their low hardness and brittle nature. To overcome ... -
Directly power system harmonics estimation using Equilibrium Optimizer
(Elsevier, 2024)In power systems, the frequency values of current and voltage signals are expected to be at the fundamental frequency. Harmonic components may occur due to the effect of non-linear loads. Accurate estimation of harmonic ... -
A comparative study on ensemble soft-computing methods for geothermal power production potential forecasting
(Elsevier, 2024)Many developed countries are increasingly interested in renewable energy sources (RESs) as a result of environmental changes and the depletion of fossil fuels in recent years. Since geothermal energy can be used as both a ... -
Adaptive DC-Voltage control based on Type-2 neuro-fuzzy controller in a hybrid stand-alone power network with hydrogen fuel cell and battery
(Elsevier, 2024)Today, hydrogen fuel cells (HFCs) have become very popular in various applications because of their ability to be a clean energy source. One of the difficulties associated with HFCs is their sluggish response to variations ... -
Oxidation resistance of aluminized refractory HfNbTaTiZr high entropy alloy
(Elsevier, 2024)In the present study, an equimolar HfNbTaTiZr refractory high entropy alloy was subjected to powder-pack aluminizing at 950°C for 4 h. High-temperature isothermal oxidation tests were carried out in open air on both as-cast ...
