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Toplam kayıt 854, listelenen: 551-560
Strength development and microstructure characteristics of artificial concrete pillar considering fiber type and content effects
(Elsevier Sci Ltd, 2020)
The artificial concrete pillar (ACP) replacement technique is a safe and reliable method to safely mine orebody pillar in room and pillar mining. in contrast to traditional ore pillar, artificial pillar has recently received ...
Temporal, geochemical and geodynamic evolution of the Late Cretaceous subduction zone volcanism in the eastern Sakarya Zone, NE Turkey: Implications for mantle-crust interaction in an arc setting
(Pergamon-Elsevier Science Ltd, 2020)
The Late Cretaceous Artvin volcanic rocks (LCAVs) from the eastern Sakarya zone (ESZ) of NE Turkey are composed of mafic/basaltic (S1-catak and S2-caglayan) and felsic/acidic (S1-Kizilkaya and S2-Tirebolu) rock types that ...
Fiber length effect on strength properties of polypropylene fiber reinforced cemented tailings backfill specimens with different sizes
(Elsevier Sci Ltd, 2020)
The strength properties of cemented tailings backfill (CTB: an engineered mix of processing tailings, hydraulic binder and mixing water) is strongly affected by its structural integrity. However, our understanding of the ...
Spectroscopic, quantum mechanical studies, ligand protein interactions and photovoltaic efficiency modeling of some bioactive benzothiazolinone acetamide analogs
(Springer International Publishing Ag, 2020)
In the present work, the molecules, N-(4-chlorophenyl)-2-[6-(benzoyl)-2-benzothiazolinone-3-yl]acetamide (CBBA), N-(6-methyl-2-pyridyl)-2-[6-(2-chlorobenzoyl)-2-benzothiazolinone-3-yl]acetamide (MCBA), N-(3-Chlorophenyl) ...
Endüstriyel çay atıklarından üretilen biyokömürün yakıt pillerinde uygulanması-yenilikçi bir yaklaşım
(Pamukkale Univ, 2020)
Fuel cells play an important role in clean and efficient energy technologies. the proton exchange membrane (PEM) fuel cell, which uses hydrogen as fuel and operates at lower temperatures than other types, is important for ...
A review on environmental impacts from aviation sector in terms of life cycle assessment
(Inderscience Enterprises Ltd, 2020)
The main objective of this paper is, in terms of LCA (life cycle assessment), to compile and discuss, environmental impacts of aircraft, gas turbine engine and components, and maintenance process and operations in the ...
The effect of solid boriding time on the structure, hardness and corrosion properties of AISI 5140 steel
(Maik Nauka/Interperiodica/Springer, 2020)
In this study, AISI 5140 steel samples were borided in an electrical furnace at a temperature of 950 degrees C for 4, 6 and 8 h. Structural examinations, hardness measurement and corrosion tests were performed to determine ...
Microstructural, mechanical and tribological properties of ultrafine-grained Cu-Cr-Zr alloy processed by high pressure torsion
(Elsevier Science Sa, 2020)
The effect of temperature on tribological properties of coarse grained (CG) and ultrafine-grained (UFG) Cu-Cr-Zr alloy processed via high pressure torsion (HPT) was investigated. Dominant wear mechanism depends on both ...
Prediction of two-phase heat transfer coefficient of flow boiling in minichannels
(Taylor & Francis Inc, 2020)
The present study mainly concentrates on the prediction of two-phase heat transfer coefficient for saturated flow boiling conditions in minichannels. the experimental database has been generated through systematic experiments ...
Sualtı doğalgaz boru hatlarındaki sızıntıların konumlandırılmasının zaman ve frekans seçici akustik kanalda incelenmesi
(Pamukkale Univ, 2020)
Natural gas, which is an important energy source, is generally transported through natural gas pipelines that also pass through underwater. Underwater natural gas pipelines can be punctured for various reasons, especially ...