Results 151 to 160 of about 68,132 (365)
Banded Glacial Slates of Permo-carboniferous Age, Showing Possible Seasonal Variations in Deposition [PDF]
Robert W. Sayles
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Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec+6 more
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A small phyllocarid faunule comprising Dithyrocaris colei Portlock, 1843, D. cf. granulata Woodward & Etheridge, 1873 and Phyllocarida indet. is described from black shale beds within coal-bearing deposits of the Mospyne Formation (upper Bashkirian ...
Krylov Sergey
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Fossil Fish-remains from Carboniferous Shales at Cultra, Co. Down, Ireland [PDF]
J.W. Davis
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A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli+5 more
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On the Occurence of Limestone of the Lower Carboniferous Series in the Cannock-Chase Portion of the South Staffordshire Coalfield [PDF]
George Marmaduke Cockin
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This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel+7 more
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XVII. Notes on the Occurrence of Ctenostomatous Polyzoa in the Carboniferous Limestone of Western Scotland [PDF]
John Young
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Hybrid materials enable high‐performance components but are challenging to process. This study explores an inductive heating concept with spray cooling for steel–aluminum specimens in a two‐step process including friction welding and cup backward extrusion.
Armin Piwek+7 more
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IV. On the First Appearance of certain Fossils in the Carboniferous Strata around Beith and Dalry [PDF]
Robert M. Craig
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