Results 181 to 190 of about 177,129 (337)

Small Molecule X‐ray Crystal Structures at a Crossroads

open access: yesChemistry–Methods, EarlyView.
Accompanying text: After 110 years of constant improvements in hardware and software for data measurement, it is now necessary to improve the model that SC‐XRD data are fit to. This creates a ‘crossroads’ – a choice between the old independent atom model and newer approaches.
Nathan D. D. Hill, René T. Boeré
wiley   +1 more source

MNT Elliptic Curves with Non-Prime Order [PDF]

open access: yesarXiv
Miyaji, Nakabayashi, and Takano proposed the algorithm for the construction of prime order pairing-friendly elliptic curves with embedding degrees $k=3,4,6$. We present a method for generating generalized MNT curves. The order of such pairing-friendly curves is the product of two prime numbers.
arxiv  

Dissociation of Hydrogen and Formation of Water at the (010) and (111) Surfaces of Orthorhombic FeNbO4

open access: yesChemPhysChem, EarlyView.
DFT calculations demonstrate that at surfaces of the disordered orthorhombic FeNbO₄ material, H₂ molecules preferentially dissociate at Fe‐coordinated oxygen‐bridge sites compared to Nb‐coordinated sites, subsequently facilitating the formation of water molecules.
Xingyu Wang   +2 more
wiley   +1 more source

A Survey of Latest Trends in Cryptography and Elliptic Curve Cryptography

open access: yesInternational Journal Of Scientific Research And Education, 2016
With the advances in  electronic technology  today there is a lot of progress  in computing power  and also the parallelism in processors . These advances have made cryptographic solutions to  security  more complicated specially in the case of electronic transactions.
openaire   +2 more sources

A novel construction approach for the pore structure model principally focuses on the controllable roundness of rock particles

open access: yesDeep Underground Science and Engineering, EarlyView.
Particle rounding effects comparison of different methods: (a), (b), and (c) are the rounding results using the B‐spline curve method with different R; (d), (e), and (f) are the results of vertex rounding substitution method with different rounding radii.
Jiabin Dong   +6 more
wiley   +1 more source

Development of node architecture and emergence of molecular organizer characteristics in the pig embryo

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The avian node is the equivalent of the amphibian Spemann's organizer, as indicated by its ability to induce a secondary axis, cellular contribution, and gene expression, whereas the node of the mouse, which displays limited inductive capacities, was suggested to be a part of spatially distributed signaling.
Braah Harmoush   +2 more
wiley   +1 more source

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