Results 21 to 30 of about 7,471,443 (306)

Evidence for Nitrogen-bearing Species on Umbriel: Sourced from a Subsurface Ocean, Undifferentiated Crust, or Impactors?

The Planetary Science Journal, 2023
Near-infrared spectra of Umbriel and the other classical Uranian moons exhibit 2.2 μ m absorption bands that could result from ammonia (NH _3 ) bearing species, possibly exposed in the geologically recent past.
Richard J. Cartwright, Riley A. DeColibus, Julie C. Castillo-Rogez, Chloe B. Beddingfield, William M. Grundy, Tom A. Nordheim   +5 more
doaj   +1 more source

Surface composition of the steel powders pre-alloyed with manganese

, 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,, Nyborg, Lars, Gierl, Christian,, Nyborg, Lars,, Danninger, Herbert, Dudrova, Eva, Gierl, Christian, Hryha, Eduard,, Hryha, Eduard, Dudrova, Eva,   +9 more
core   +2 more sources

Longitudinal Variation of H2O Ice Absorption on Miranda

The Planetary Science Journal, 2022
Many tidally locked icy satellites in the outer solar system show leading/trailing hemispherical asymmetries in the strength of near-infrared (NIR) H _2 O ice absorption bands, in which the absorption bands are stronger on the leading hemisphere. This is
Riley A. DeColibus, Nancy J. Chanover, Richard J. Cartwright   +2 more
doaj   +1 more source

Surface roughness and chemical composition changes of resin-modified glass ionomer immersed in 0.2% sodium fluoride solution

Journal of Dental Sciences, 2021
Background/purpose: Glass ionomers undergo degradation when exposed to fluoride, which changes the physico-chemical characteristics of the materials.
Seung-Hwan Ong, Seung-Hoon Yoo
doaj   +1 more source

Effect of laser grooving on titanium dental implants surface composition: An in vitro study

Saudi Journal of Oral Sciences
Introduction: The aluminum and vanadium contents of the titanium-aluminum-vanadium alloy (Ti-6Al-4V) surface are known to have cytotoxic effect, the use of laser grooving was thought to produce dental implants-controlled surface roughness and a better ...
Mohamed Ahmed Alkhodary
doaj   +1 more source

Are NH3 and CO2 Ice Present on Miranda?

The Planetary Science Journal, 2023
Published near-IR spectra of the four largest classical Uranian satellites display the presence of discrete deposits of CO _2 ice, along with subtle absorption features around 2.2 μ m.
Riley A. DeColibus, Nancy J. Chanover, Richard J. Cartwright   +2 more
doaj   +1 more source

Comparison between Composite Index Solution Surfaces with Fuzzy Composite Index Decision Surfaces [PDF]

2019 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE), 2019
Peer ...
González Cárdenas, Rubén, Nebot Castells, M. Àngela, Múgica Álvarez, Francisco   +2 more
openaire   +1 more source

Surface compositions across Pluto and Charon [PDF]

Science, 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., Binzel, R. P., Buratti, B. J., Cook, J. C., Cruikshank, D. P., Ore, C. M. Dalle, Earle, A. M., Ennico, K., Howett, C. J. A., Lunsford, A. W., Olkin, C. B., Parker, A. H., Philippe, S., Protopapa, S., Quirico, E., Reuter, D. C., Schmitt, B., Singer, K. N., Verbiscer, A. J., Beyer, R. A., Buie, M. W., Cheng, A. F., Jennings, D. E., Linscott, I. R., Parker, J. Wm., Schenk, P. M., Spencer, J. R., Stansberry, J. A., Stern, S. A., Throop, H. B., Tsang, C. C. C., Weaver, H. A., Weigle II, G. E., Young, L. A., Team, the New Horizons Science   +34 more
openaire   +5 more sources

Surface profilometry with composite interferometer

Optics Express, 2007
We proposed and demonstrated a low-cost optical system for surface profilometry with nanometer-resolution. The system is based on a composite interferometer consisting of a Michelson interferometer and a Mach-Zehnder interferometer. With the proposed phase compensating mechanism, the phase deviation due to the instability of the optical delay system ...
Cheng-Chung, Lai, I-Jen, Hsu
openaire   +2 more sources

Effect of atomization on surface oxide composition in 316L stainless steel powders for additive manufacturing [PDF]

, 2020
The initial oxide state of powder is essential to the robust additive manufacturing of metal components using powder bed fusion processes. However, the variation of the powder surface oxide composition as a function of the atomizing medium is not clear ...
Riabov, Dmitri, Lars Nyborg, Masoud Rashidi, Rashidi, Masoud, Rashidi, Masoud,, Dmitri Riabov, Nyborg, Lars, Nyborg, Lars,, Bengtsson, Sven, Hryha, Eduard,, Riabov, Dmitri,, Eduard Hryha, Sven Bengtsson, Bengtsson, Sven,, Hryha, Eduard   +14 more
core   +1 more source