Results 31 to 40 of about 802,767 (303)
A Gunn-Peterson test with a QSO at z=6.4
, 2011 Understanding the cosmic re-ionization is one of the key goals of the modern observational cosmology. High redshift QSO spectra can be used as background light sources to measure absorption by intervening neutral hydrogen. We investigate neutral hydrogen
Becker +24 more
core +1 more source
Metals, 2016 Due to hydrogen possessing a relatively large neutron scattering length, hydrogen absorption and desorption behaviors in metal thin films can straightforwardly be investigated by neutron reflectometry. However, to further elucidate the chemical structure
Sara J. Callori +4 more
doaj +1 more source
Hydrogen Absorption Properties of Metal-Ethylene Complexes [PDF]
, 2007 Recently, we have predicted [Phys. Rev. Lett. 97, 226102 (2006)] that a single ethylene molecule can form stable complexes with light transition metals (TM) such as Ti and the resulting TMn-ethylene complex can absorb up to ~12 and 14 wt % hydrogen for n=
D. Frenkel +7 more
core +4 more sources
The Pseudo-continuum Bound-free Opacity of Hydrogen and its Importance in Cool White Dwarf Atmospheres [PDF]
, 2006 We investigate the importance of the pseudo-continuum bound-free opacity from hydrogen atoms in the atmospheres of cool white dwarfs. This source of absorption, when calculated by the occupation probability formalism applied in the modeling of white ...
Bates D. R., Piotr M. Kowalski
core +2 more sources
Hydrogen Absorption and Hydrogenation by Palladium
Hyomen Kagaku, 2006 Palladium absorbs hydrogen exothermically. Under the industrial conditions for hydrogenation reactions over palladium catalysts, palladium particles should be working as palladium hydride α'-PdHx (x > 0.6), which suggests the enrollment of absorbed hydrogen in the hydrogenation reaction.
openaire +2 more sources
Molecules, 2019 While the overwhelming number of papers on multi-principal-element alloys (MPEAs) focus on the mechanical and microstructural properties, there has been growing interest in these alloys as solid-state hydrogen stores.
Jorge Montero +5 more
doaj +1 more source
Hydrogen contamination in Ge-doped SiO[sub 2] thin films prepared by helicon activated reactive evaporation [PDF]
, 2015 Germanium-doped silicon oxidethin films were deposited at low temperature by using an improved helicon plasma assisted reactive evaporation technique.
Boswell, R. +5 more
core +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Infrared spectroscopy of small-molecule endofullerenes
, 2013 Hydrogen is one of the few molecules which has been incarcerated in the molecular cage of C$_{60}$ and forms endohedral supramolecular complex H$_2$@C$_{60}$. In this confinement hydrogen acquires new properties.
Bačić, Z. +15 more
core +3 more sources
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source