Results 81 to 90 of about 260,252 (303)
, 2015 Clathrate hydrates are believed to play a significant role in various solar system environments, e.g. comets, and the surfaces and interiors of icy satellites, however the structural factors governing their formation and dissociation are poorly ...
Day, Sarah J. +3 more
core +1 more source
The Compositions of Kuiper Belt Objects [PDF]
, 2011 Objects in the Kuiper belt are small and far away thus difficult to study in detail even with the best telescopes available at earth. For much of the early history of the Kuiper belt, studies of the compositions of these objects were relegated to ...
Brown RH +3 more
core +2 more sources
FEBS Open Bio, EarlyView.Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata +13 more
wiley +1 more source
Crystalline hydrogen bonding of water molecules confined in a metal-organic framework
Communications Chemistry, 2022 Determining the spatial ordering and hydrogen bonding dynamics of confined water molecules within nanopores remains challenging. Here, Raman spectroscopy and crystallographic studies show ice-like spatial ordering of unbound water molecules within the ...
Jinhee Bae +3 more
doaj +1 more source
Astrochemistry: overview and challenges [PDF]
, 2017 This paper provides a brief overview of the journey of molecules through the Cosmos, from local diffuse interstellar clouds and PDRs to distant galaxies, and from cold dark clouds to hot star-forming cores, protoplanetary disks, planetesimals and ...
van Dishoeck, Ewine F.
core +3 more sources
2D IR spectroscopy of high-pressure phases of ice [PDF]
The Journal of Chemical Physics, 2017 We present experimental and simulated 2D IR spectra of some high-pressure forms of isotope-pure D2O ice and compare the results to those of ice Ih published previously [F. Perakis and P. Hamm, Phys. Chem. Chem. Phys. 14, 6250 (2012); L. Shi et al., ibid. 18, 3772 (2016)]. Ice II, ice V, and ice XIII have been chosen for this study, since this selection
Tran, Halina +6 more
openaire +5 more sources
Packaging of Macroscopic Material Payloads: Needs, Challenges, Concepts, and Future Directions
Advanced Engineering Materials, EarlyView.This review introduces a unified framework that decomposes any macroscopic packaging system into the payload, packaging material, and packaging strategy and combines them into a conceptual packaging equation: packaging strategy = payload + packaging material.
Venkata S. R. Jampani, Manos Anyfantakis
wiley +1 more source
Optical Constants of Ices Important to Planetary Science from Laboratory Reflectance Spectroscopy
The Planetary Science JournalLaboratory-derived optical constants are essential for identifying ices and measuring their relative abundances on solar system objects. Almost all optical constants of ices important to planetary science come from experiments with transmission ...
S. C. Tegler +17 more
doaj +1 more source
Photochemistry of the PAH pyrene in water ice: the case for ion-mediated solid-state astrochemistry
, 2009 Context. Icy dust grains play an important role in the formation of complex inter- and circumstellar molecules. Observational studies show that polycyclic aromatic hydrocarbons (PAHs) are abundantly present in the ISM in the gas phase.
A. Bakker +48 more
core +1 more source
Proceedings of the Thirteenth International Conference on Time-Resolved Vibrational Spectroscopy [PDF]
, 2007 The thirteenth meeting in a long-standing series of “Time-Resolved Vibrational Spectroscopy” (TRVS) conferences was held May 19th to 25th at the Kardinal Döpfner Haus in Freising, Germany, organized by the two Munich Universities - Ludwig-Maximilians ...
Laubereau, Alfred +2 more
core +1 more source