Results 31 to 40 of about 1,097,727 (354)
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
Journal of Physical Chemistry Letters, 2021 Using a multiscale computational scheme, we study the trends in distribution and composition of the surface functional groups −O, −OH, and −F on two-dimensional (2D) transition metal carbides and nitrides (MXenes).
Rina Ibragimova +3 more
semanticscholar +1 more source
Controls on the chemical composition of the surface microlayer of Delaware Bay
, 2020 Wozniak, Andrew S.The surface microlayer (SML) is a thin (10s-100s μm) layer at the top of the water column which serves as a boundary between bodies of water and the atmosphere that mediates fluxes across the air-sea interface.
Coffey, Nicole R.
core +1 more source
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 +5 more
doaj +1 more source
End-member composition of South Atlantic surface sediments
, 2023 We present the characteristics of the lithogenic components of seafloor surface sediments covering the entire South Atlantic Ocean (from the equator to Antarctica). These samples were collected by multiple seagoing expeditions between 1988 and 2005. This
Völker, Christoph +6 more
core +1 more source
Evaluation of streamwater composition changes in the Vosges Mountains (NE France): 1955–2005 [PDF]
, 2009 n 1995, in the southwestern Vosges Mountains (NE France), 158 of 395 streams (40%) had a pH lower than 5.5 at baseflow. As elsewhere in Europe, acid deposition has decreased since the seventies, as has base cation deposition.
Boudot, J.P. +14 more
core +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 +2 more
doaj +1 more source
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 +2 more
doaj +1 more source
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 SciencesIntroduction: 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