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Yangyu Lu, Qingming Zhang, Yijiang Xue, Cheng Shang, Wenjin Liu, Siyuan Ren and Renrong Long
the research content of this article may provide a reference for military defense engineering as well as shielding design for aerospace applications.
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William K. Hartmann
This study examines the history of the paradigm concerning a lunar (or solar-system-wide) terminal cataclysm (also called ?Late Heavy Bombardment? or LHB), a putative, brief spike in impacts at ~3.9 Ga ago, preceded by low impact rates. We examine origin...
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Deepak Dhingra
Volatile-bearing lunar surface and interior, giant magmatic-intrusion-laden near and far side, globally distributed layer of purest anorthosite (PAN) and discovery of Mg-Spinel anorthosite, a new rock type, represent just a sample of the brand new perspe...
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Francisco Silva, Rui Martinho, Maria Andrade, António Baptista and Ricardo Alexandre
It is well known that injection of glass fibre?reinforced plastics (GFRP) causes abrasive wear in moulds? cavities and runners. Physical vapour deposition (PVD) coatings are intensively used to improve the wear resistance of different tools, also being o...
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Jose Mario Paiva, Mohamed Abdul Monim Shalaby, Mohammad Chowdhury, Lev Shuster, Sergey Chertovskikh, Danielle Covelli, Edinei Locks Junior, Pietro Stolf, Amr Elfizy, Carlos Alberto Schuch Bork, German Fox-Rabinovich and Stephen Clarence Veldhuis
Tribological phenomena and tool wear mechanisms during machining of hard-to-cut TiAl6V4 aerospace alloy have been investigated in detail. Since cutting tool wear is directly affected by tribological phenomena occurring between the surfaces of the workpie...
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Magnus Ivarsson and Paula Lindgren
On Earth, the deep subsurface biosphere of both the oceanic and the continental crust is well known for surviving harsh conditions and environments characterized by high temperatures, high pressures, extreme pHs, and the absence of sunlight. The microorg...
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