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Toplam kayıt 159, listelenen: 21-30
Wire electric discharge machining and its effect on the surface finish of HfNbTaTiZr refractory high-entropy alloy
(Springer, 2023)
Refractory high-entropy alloys (RHEAs) have high strength and hardness but limited plasticity at room temperature, making them challenging to process and shape using conventional techniques. In the current study, HfNbTaTiZr ...
Experimental analysis of hydrogen storage performance of a LaNi5-H2 reactor with phase change materials
(Elsevier, 2023)
Energy storage, especially thermal energy storage, has an important place in terms of efficient use of energy. Systems in which phase change materials (PCMs) are used are among the thermal energy storage (TES) options, ...
Modüler çok seviyeli dönüştürücüler için genelleştirilmiş bir kapasitör gerilim dengeleme şeması ve örnekleme frekansı analizi
(Gazi Universitesi, 2023)
Modüler çok seviyeli dönüştürücüler (MÇD), modüler yapısı, yüksek verimliliği ve kaliteli çıkış dalga formu sayesinde orta ve yüksek güçlü endüstriyel uygulamalarda sıklıkla kullanılmaktadırlar. MÇD’ler literatürde yer ...
Investigation into the influence of boronizing on the wear behavior of additively manufactured Inconel 625 alloy at elevated temperature
(Springer, 2023)
Directed energy deposition (DED) technology is a cost-effective additive manufacturing method widely used in the production of complex-shaped parts made of various engineering alloys as well as superalloys due to its ...
Geochemical, mineralogical and diagenetic characteristics of marine chert in the Hatay region, S-Turkey: Its origin and depositional environment
(Carpathian Journal of Earth and Environmental Sciences, 2023)
Trace elements and rare earth elements (REEs) were studied to determine the formation of chert and siliceous limestones, which are predominantly observed in the Okçular formation. Cherts are divided into four types according ...
High-temperature effect on mechanical properties of fiber reinforced concretes including waste tire rubber
(Wiley, 2023)
In this paper, concretes including three different fiber types (carbon steel fiber [CSF], forta ferro fiber [FFF], and polypropylene fiber [PPF]) with different percentages by volume (0.5%, 1%, and 1.5%) and crumb rubber ...
Experimental and Numerical Study on Flow Control Using 3-Array Submerged Vane in Laboratory Channel Bend
(MDPI, 2023)
Regulation structures such as submerged vane are needed to reduce and eliminate environmental damage due to increased flooding in rivers. In particular, scours on the outer bank due to increased flow velocities cause the ...
Decision making in the manufacturing environment using the technique of precise order preference
(Yildiz Technical University, 2023)
Wrong decisions in manufacturing systems can jeopardize the continuity of production and reduce productivity and efficiency. Therefore, it is essential to make the right decisions in solving the problems encountered in ...
Conceptual design and optimal sizing of a small unmanned aerial vehicle with fuel cell and battery-powered hybrid propulsion system by meta-heuristic algorithms based on energy consumption
(Taylor and Francis, 2023)
In this paper, a new conceptual design methodology for a hybrid propulsion system consisting of the battery and hydrogen fuel cells is presented based on the minimum energy consumption of the UAV. In this context, an ...
Presence of microplastic in the Patella caerulea from the northeastern Mediterranean Sea
(Elsevier, 2023)
This study reports first evidence of microplastic detection in the Patella caerulea collected from 5 different stations located in İskenderun Bay and Mersin Bay. A total of 160 P. caerulea specimens were examined and 40 ...