Results 211 to 220 of about 802,741 (299)

Controls on hydrocarbon accumulation in ultra-deep carbonate reservoirs of the Ordovician Yingshan Formation, Catake Uplift, Tarim Basin. [PDF]

Sci Rep
Wang L, Yang R, Geng F, Jiang Z, Zhang H, Zhang Q.   +5 more
europepmc   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source

Toward "Safe" Chemicals and Materials on Mars: Knowledge Gaps for Expanding Planetary Protection Requirements. [PDF]

Environ Sci Technol
Hader JD, Fairén AG, Ågerstrand M, MacLeod M, Nowack B.   +4 more
europepmc   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Integrating Space Sexology Into Long-Duration Mission Architecture: A Five-Pillar Operational Framework. [PDF]

Cureus
Minoretti P.
europepmc   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Evolutionary Diffusion Framework Empowering High-Performance Freeform Terahertz Metasurface Sensing. [PDF]

Sensors (Basel)
Zhang C, Pan M, Hong Q, Shen S, Guo C, Shi Y, Zhang Y.   +6 more
europepmc   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Extreme Arabian environments and their microbiomes: new frontiers for astrobiology and biosignature discovery. [PDF]

Extremophiles
Schultz J, García-Martínez PM, Altalhi S, Kontis N, Dos Santos A, Rosado AS.   +5 more
europepmc   +1 more source

Data transfer scheduling for deep space exploration

, 2022
Hébrard, Emmanuel, Artigues, Christian, Lopez, Pierre, Lusson, Arnaud, Chien, Steve, Rabideau, Gregg, Maillard, Adrien   +6 more
openaire   +1 more source