Results 121 to 130 of about 32,962 (258)

Antioxidant Property of the Egyptian Propolis Extract Versus Aluminum Silicate Intoxication on a Rat’s Lung: Histopathological Studies [PDF]

open access: gold, 2020
Ali H. Abu Almaaty   +7 more
openalex   +1 more source

AEM of extraterrestrial materials [PDF]

open access: yes
Modifications to and maintenance of the JEOL 100 CX electron microscope are discussed. Research activity involving extraterrestrial matter, cosmic dust, stratosphere dust, and meteorites is ...
Mackinnon, I. D. R.
core   +1 more source

A Pyroxenite Mantle on Mercury? Experimental Insights from Enstatite Chondrite Melting at Pressures up to 5 GPa [PDF]

open access: yesarXiv
Enstatite chondrites (EC) are potential source material for the accretion of Mercury due to their reduced nature and enrichment in volatile elements. Understanding their melting properties is therefore important to better assess a scenario where Mercury formed from these chondrites.
arxiv  

Beneficiation and extraction of nonterrestrial materials, part 2 [PDF]

open access: yes
A review of options for processing extraterrestrial materials was dominated by industrial materials scientist who tried to identify which processes utilizing space materials could be implemented in the near term.
Agosto, William N.
core   +1 more source

Improved CMAS corrosion resistance of rare earth niobates by high-entropy and composite design

open access: yesJournal of Materials Research and Technology
This study reports the preparation of two single-phase high-entropy rare-earth niobates (RE1/5Ho1/5Er1/5Y1/5Yb1/5)3NbO7, (RE = Ce, Lu), and two composite-phase high-entropy rare-earth niobates (RE1/5Ho1/5Er1/5Y1/5Yb1/5)3NbO7:(RE1/5Ho1/5Er1/5Y1/5Yb1/5 ...
Liujia Tian   +6 more
doaj  

Late Pebble Accretion of Comet 81P/Wild 2 Nucleus: Evidence from a Plagioclase-bearing Chondrule Fragment, Pyxie

open access: yesThe Astrophysical Journal
Comet 81P/Wild 2 is a ∼4.5 km-sized primordial object that almost has not been modified by internal heating by ^26 Al decay. Its nucleus could have been formed by hierarchical agglomeration or gravitational collapse of pebble swarms concentrated by ...
Mingming Zhang   +5 more
doaj   +1 more source

Earths composition: origin, evolution and energy budget [PDF]

open access: yesarXiv
One in every two atoms in the Earth, Mars, and the Moon is oxygen; it is the third most abundant element in the solar system. The oxygen isotopic compositions of the terrestrial planets are different from those of the Sun and demonstrate that these planets are not direct compositional analogs of the solar photosphere. Likewise, the Suns O/Fe, Fe/Mg and
arxiv  

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