Results 31 to 40 of about 254,154 (222)
Molecular Structure and Modeling of Water-Air and Ice-Air Interfaces Monitored by Sum-Frequency Generation. [PDF]
, 2020 From a glass of water to glaciers in Antarctica, water-air and ice-air interfaces are abundant on Earth. Molecular-level structure and dynamics at these interfaces are key for understanding many chemical/physical/atmospheric processes including the ...
Backus, Ellen HG +8 more
core +3 more sources
Ices in Star-Forming Regions: First Results from VLT-ISAAC [PDF]
, 2001 The first results from a VLT-ISAAC program on L- and M-band infrared spectroscopy of deeply-embedded young stellar objects are presented. The advent of 8-m class telescopes allows high S/N spectra of low-luminosity sources to be obtained.
Alves, J.F. +12 more
core +2 more sources
Infrared Spectroscopy and Photochemistry of Anthracoronene in Cosmic Water Ice [PDF]
ACS Earth and Space Chemistry, 2022 We present a laboratory study of the polycyclic aromatic hydrocarbon (PAH) anthracoronene (AntCor, C36H18) in simulated interstellar ices in order to determine its possible contribution to the broad infrared absorption bands in the 5-8 μm wavelength interval.
Julie M. Korsmeyer +4 more
openaire +3 more sources
Ice Nucleation Properties of Ice-binding Proteins from Snow Fleas
Biomolecules, 2019 Ice-binding proteins (IBPs) are found in many organisms, such as fish and hexapods, plants, and bacteria that need to cope with low temperatures. Ice nucleation and thermal hysteresis are two attributes of IBPs.
Akalabya Bissoyi +6 more
doaj +1 more source
Fluctuation spectroscopy of surface melting of ice with and without impurities [PDF]
Physical Review E, 2019 Water, in its three phases, is ubiquitous, and the surface properties of ice is important to clarifying the process of melting, as well as to various other fields, including geophysics. As such, the subject has been studied both theoretically and experimentally, for over a hundred years, while being an active field of research today.
Kenichiro Aoki, Takahisa Mitsui
openaire +4 more sources
The new frontier of microstructural impurity research in polar ice
Annals of Glaciology, 2023 Deciphering the localisation of solid and dissolved impurities on the micron-scale in glacial ice remains a challenge, but is critical to understand the integrity of ice core records and internal deformation.
Nicolas Stoll +5 more
doaj +1 more source
Two-dimensional infrared spectroscopy of neat ice Ih [PDF]
Physical Chemistry Chemical Physics, 2012 The OH stretch line shape of ice Ih exhibits distinct peaks, the assignment of which remains controversial. We address this longstanding question using two dimensional infrared (2D IR) spectroscopy of the OH stretch of H(2)O and the OD stretch of D(2)O of ice Ih at T = 80 K.
Perakis, Fivos, Hamm, Peter
openaire +4 more sources
Depositional ice nucleation on solid ammonium sulfate and glutaric acid particles [PDF]
Atmospheric Chemistry and Physics, 2010 Heterogeneous ice nucleation on solid ammonium sulfate and glutaric acid particles was studied using optical microscopy and Raman spectroscopy. Optical microscopy was used to detect selective nucleation events as water vapor was slowly introduced into an
K. J. Baustian +2 more
doaj
Arctic, Antarctic, and Alpine Research, 2022 A reconstruction of the last 2,000 years BP of environmental and oceanographic changes on the western margin of Spitsbergen was performed using a multidisciplinary approach including the fossil assemblages of diatoms, planktic and benthic foraminifera ...
Fiorenza Torricella +8 more
doaj +1 more source
, 2014 Dust grains in cold circumstellar regions and dark-cloud interiors at 10-20 K are covered by ice mantles. A nonthermal desorption mechanism is invoked to explain the presence of gas-phase molecules in these environments, such as the photodesorption ...
Caro, G. M. Muñoz +3 more
core +2 more sources