Results 11 to 20 of about 260,252 (303)
Observation of sublimation of ice using terahertz spectroscopy [PDF]
Royal Society Open Science, 2020 Although many studies have investigated the phase change of water, few have focused on the sublimation of ice. This study revealed that ice sublimation can be observed using terahertz (THz) spectroscopy.
Keisuke Matsumura +2 more
doaj +3 more sources
Molecular Structure and Modeling of Water-Air and Ice-Air Interfaces Monitored by Sum-Frequency Generation. [PDF]
Chemical Reviews, 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 +5 more sources
Vacuum-UV spectroscopy of interstellar ice analogs. II. Absorption cross-sections of nonpolar ice molecules [PDF]
Astronomy & Astrophysics, 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 +4 more sources
Broadband spectroscopy of astrophysical ice analogues
Astronomy & AstrophysicsContext. Understanding the optical properties of astrophysical ices is crucial for modeling dust continuum emission and radiative transfer in dense, cold interstellar environments. Molecular nitrogen, a primary carrier of N in protoplanetary disks, plays
Kruczkiewicz F. +12 more
doaj +2 more sources
The Investigation of Spin-Crossover Systems by Raman Spectroscopy: A Review
Magnetochemistry, 2022 Spin-crossover (SCO) is a well-documented phenomenon, being intensely investigated by a respectable number of researchers during the last decades. The conventional method for the investigation of SCO properties is by performing magnetic susceptibility ...
Zoi G. Lada
doaj +1 more source
Monitoring the temperature-dependent elastic and anelastic properties in isotropic polycrystalline ice using resonant ultrasound spectroscopy [PDF]
The Cryosphere, 2016 The elastic and anelastic properties of ice are of interest in the study of the dynamics of sea ice, glaciers, and ice sheets. Resonant ultrasound spectroscopy allows quantitative estimates of these properties and aids calibration of active and passive ...
M. J. Vaughan +3 more
doaj +1 more source
Journal of Glaciology, 2022 Tiny samples of ancient atmosphere in air bubbles within ice cores contain argon (Ar), which can be used to reconstruct past temperature changes. At a sufficient depth, the air bubbles are compressed by the overburden pressure under low temperature and ...
Tsutomu Uchida +7 more
doaj +1 more source
Detection of Microbes in Ice Using Microfabricated Impedance Spectroscopy Sensors
ECS Sensors Plus, 2023 During the growth of a polycrystalline ice lattice, microorganisms partition into veins, forming an ice vein network highly concentrated in salts and microbial cells.
Lauren B. Kaiser-Jackson +5 more
doaj +1 more source
Nature Communications, 2021 Ice-nucleating proteins promote ice formation at high sub-zero temperatures, but the mechanism is still unclear. The authors investigate a model ice-nucleating protein at the air-water interface using vibrational sum frequency generation spectroscopy and
Steven J. Roeters +12 more
doaj +1 more source
A 120,000-year long climate record from a NW-Greenland deep ice core at ultra-high resolution
Scientific Data, 2021 Measurement(s) isotope analysis • water ice core Technology Type(s) cavity ring-down spectroscopy Factor Type(s) δ18O • δD Sample Characteristic - Location Greenland Ice Sheet Machine-accessible metadata file describing the reported data: https://doi.org/
Vasileios Gkinis +28 more
doaj +1 more source