Results 211 to 220 of about 65,368 (313)

Multiscale insights into sodium storage in hard carbon from <i>operando</i> small- and wide-angle neutron scattering measurements. [PDF]

Chem Sci
Umemoto Y, Ohishi K, Igarashi D, Tatara R, Lin CA, Nakamoto K, Kawamura Y, Hiroi K, Takata SI, Nambu Y, Tateyama Y, Komaba S.   +11 more
europepmc   +1 more source

Best practices in `0 K' DFT energy calculations on molecular crystal structures

Acta Crystallographica Section C, EarlyView.
This article describes best practices for `zero Kelvin' energy calculations on molecular crystals and is targeted for non‐experts who would like to perform their own calculations or assess the accuracy and validity of such calculations reported in the scientific literature.This article describes best practices for `zero Kelvin' energy calculations on ...
Jacco van de Streek, Erin R. Johnson
wiley   +1 more source

Origin and application of the Lorentz factor in X‐ray diffraction

Acta Crystallographica Section A, EarlyView.
This review treats the role of the Lorentz factor in quantitative analysis of X‐ray diffraction data. The origin of the Lorentz factor, its derivation and practical implementations for a variety of modern X‐ray diffraction methods are discussed.The Lorentz factor is a fundamental correction factor in quantitative analysis of X‐ray diffraction ...
Fabian Gasser, Josef Simbrunner, Guillaume Freychet, Nicola Demitri, Václav Holý, Roland Resel   +5 more
wiley   +1 more source

Characterization of volcanic tuff pores pre- and post-underground nuclear detonation using ultra-small and small angle neutron scattering. [PDF]

Sci Rep
Ding M, Hjelm RP, Hawley ME, Sussman AJ, Broome ST, Wilson JE, Barker JG, Swanson EM, Neil CW.   +8 more
europepmc   +1 more source

Thermal histories of El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155): Implications for the diversity of IAB‐ungrouped iron meteorites and their parent bodies

Meteoritics &Planetary Science, EarlyView.
Abstract This study provides the first petrographic, crystallographic, and chemical comparison between El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155), two particular IAB‐ungrouped iron meteorites. Both contain exceptionally large graphite nodules and “flowers”, providing unique insights into carbon behavior in metallic melts and cooling ...
L. Perez, M. Roskosz, F. Danoix, L. Kern, V. Megevand, C. Brillatz, B. Devouard, J. Gattacceca, M. Gounelle   +8 more
wiley   +1 more source

Geochemical investigation of impactites from the Boltysh impact structure and possible relationship to early Danian sediments from the Umbria–Marche Basin, Italy

Meteoritics &Planetary Science, EarlyView.
Abstract Within the Danian Scaglia Rossa Formation appears a regionally correlatable horizon cutting across multiple sections and outcrops within the Umbria–Marche Basin of NE Italy, where it is intercalated with uniform pelagic carbonate successions. This horizon is called “ALE layer” and has tentatively been interpreted as a fine‐grained volcanic ash.
Toni Schulz, Sophia Wernitznig, Christian Koeberl, Bérengère Mougel, Alessandro Montanari, Frédéric Moynier   +5 more
wiley   +1 more source

A Small-Angle Neutron Scattering Methodology for Quantitative Characterization of Channel Width in Gamma Matrix Phase. [PDF]

Nanomaterials (Basel)
Chen Z, Li T, Wu E, Du X, Zhang S, Yan S, Wang Z, Sun K, Chen D.   +8 more
europepmc   +1 more source

The Ames impact structure, Oklahoma: New radioisotopic constraints and implications for North American impact chronology

Meteoritics &Planetary Science, EarlyView.
Abstract The Ames impact structure (Oklahoma) is thought to have formed during the Ordovician Meteor Event, based on conodont biostratigraphy of its crater fill. Here, U–Pb zircon dates from its impact‐melt portion, conducted using secondary ion mass spectrometry and laser ablation–inductively coupled plasma–mass spectrometry (n = 37 spots), yield a ...
Elizabeth J. Catlos, Andrew F. Parisi, Michael E. Brookfield, Timmons Erickson, Sean P.S. Gulick, Axel K. Schmitt, Daniel F. Stockli, Daniel P. Miggins, Ben Ruchte, Mark Cloos   +9 more
wiley   +1 more source

Life, but Not as We Know It: Why Fine‐Tuning Arguments Fail

Noûs, EarlyView.
ABSTRACT Definitions of “life” and theories of life are systematically neglected in arguments for and from fine‐tuning. Despite claims to be neutral about the definition of “life,” fine‐tuning arguments generally presuppose that life requires a form of structural complexity only afforded by physicochemical complexity of the sort with which we are ...
Joe Gough
wiley   +1 more source

Unlocking complexity through neutron scattering: Structure and dynamics of protein-polymer conjugates. [PDF]

Protein Sci
Russo D, Wurm F, Teixeira J.
europepmc   +1 more source