Results 21 to 30 of about 1,097,727 (354)

Surface composition of the steel powders pre-alloyed with manganese

open access: yes, 2010
The determination of the surface oxide layer composition is vital to facilitate the adjustment of the sintering conditions for sufficient removal of the surface oxides for providing strong metal bonding between the metal particles during sintering.
Danninger, Herbert,   +9 more
core   +2 more sources

Surface compositions across Pluto and Charon [PDF]

open access: yesScience, 2016
New Horizons unveils the Pluto system In July 2015, the New Horizons spacecraft flew through the Pluto system at high speed, humanity's first close look at this enigmatic system on the outskirts of our solar system. In a series of papers, the New Horizons team present their analysis of the encounter data downloaded so far: Moore
Grundy, W. M.   +34 more
openaire   +5 more sources

KCNE1 and KCNE2 provide a checkpoint governing voltage-gated potassium channel α-subunit composition [PDF]

open access: yes, 2011
Voltage-gated potassium (Kv) currents generated by N-type α-subunit homotetramers inactivate rapidly because an N-terminal ball domain blocks the channel pore after activation.
Abbott, G.   +12 more
core   +1 more source

Chemical composition of the solar surface [PDF]

open access: yesJournal of Astrophysics and Astronomy, 2020
The Sun provides a standard reference against which we compare the chemical abundances found anywhere else in the Universe. Nevertheless, there is not a unique 'solar' composition, since the chemical abundances found in the solar interior, the photosphere, the upper atmosphere, or the solar wind, are not exactly the same.
openaire   +2 more sources

Color Differences on the Lunar Surface [PDF]

open access: yes, 1968
Both a detailed literature survey and a new observational study were performed to determine and extend the knowledge of spectral reflectivity differences (color differences) on the lunar surface in the extended visible wavelength region.
McCord, Thomas Bard
core   +1 more source

Integrating Particle Microstructure, Surface and Mechanical Characterization with Bulk Powder Processing

open access: yesKONA Powder and Particle Journal, 2019
Multiple industrial applications, including pharmaceuticals, rely on the processing of powders. The current powder characterization framework is fragmented into two general areas.
Rodolfo Pinal, M. Teresa Carvajal
doaj   +1 more source

A CO2 Cycle on Ariel? Radiolytic Production and Migration to Low-latitude Cold Traps

open access: yesThe Planetary Science Journal, 2022
CO _2 ice is present on the trailing hemisphere of Ariel but is mostly absent from its leading hemisphere. The leading/trailing hemispherical asymmetry in the distribution of CO _2 ice is consistent with radiolytic production of CO _2 , formed by charged
Richard J. Cartwright   +13 more
doaj   +1 more source

Research Status on Surface Modification of Materials by Low-Temperature Plasma [PDF]

open access: yesCailiao Baohu, 2022
As a new type of method to activate molecular, low-temperature plasma has a large number of active particles with various types, which are easy to react with the surface of the material, and is suitable for surface modification treatment of the materials.
QIAO Qian-sen, BA De-ma
doaj   +1 more source

Surface composition analysis of PP films treated by corona discharge

open access: yesMaterials Research, 2003
Polypropylene films (PP) surface treated by corona discharge in air was analyzed to verify the changes on surface composition. The presence of oxidized polar groups on the film surface, mainly, C=O, C-O and COH, was confirmed by infrared spectroscopy ...
Noeli Sellin   +1 more
doaj   +1 more source

Effects of CsPbBr3 nanocrystals concentration on electronic structure and surface composition of perovskite films

open access: yesOrganic electronics, 2019
The electronic structure and surface composition of perovskite films after incorporation of different concentration of CsPbBr3 nanocrystals (NCs) have been investigated with ultraviolet photoelectron spectroscopy (UPS) and X-ray, and angle-resolved ...
Yuquan Liu   +9 more
semanticscholar   +1 more source

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