Results 51 to 60 of about 1,274,578 (287)

Group velocity mismatch at ultrashort electromagnetic pulse propagation in nonlinear metamaterials

open access: yesOpen Physics, 2019
The parametric interaction of optical wave pulses in metamaterials is considered in the first approximation of the theory of dispersion. The interaction between the quasi-monochromatic pump wave and the wave pulse at the total frequency with quadratic ...
Kasumova Rena J.   +2 more
doaj   +1 more source

Area Efficient Computing-in-Memory Architecture Using STT/SOT Hybrid Three Level Cell

open access: yesIEEE Open Journal of Nanotechnology, 2022
Spintronic-based computing-in-memory (CiM) architecture has emerged as one of the efficient solutions to counter the latency/bandwidth bottleneck of conventional von-Neumann architecture.
Seema Dhull   +3 more
doaj   +1 more source

Which group velocity of light in a dispersive medium?

open access: yes, 2008
The interaction between a light pulse, traveling in air, and a generic linear, non-absorbing and dispersive structure is analyzed. It is shown that energy conservation imposes a constraint between the group velocities of the transmitted and reflected ...
A. Puri   +9 more
core   +1 more source

A bound on the group velocity for Bloch wave packets [PDF]

open access: yes, 2015
We give a direct proof that the group velocities of Bloch wave packet solutions of periodic second order wave equations cannot exceed the maximal speed of propagation of the periodic wave ...
Allaire, Grégoire   +2 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Two‐Stage Framework for Precise Measurement of Marsquake Surface Wave Group Velocity Dispersion

open access: yesEarth and Space Science
Surface wave dispersion analysis is crucial for investigating crustal and mantle structures on Earth and other celestial bodies. On Mars, Rayleigh and Love waves have been detected, with Rayleigh waves exhibiting vertical and radial motion and Love waves
Weijia Sun   +3 more
doaj   +1 more source

Effects of Excitation Angle on Air-Puff-Stimulated Surface Acoustic Wave-Based Optical Coherence Elastography (SAW-OCE)

open access: yesPhotonics
Increased stiffness of tissues has been recognised as a diagnostic feature of pathologies. Tissue stiffness characterisation usually involves the detection of tissue response from mechanical stimulation.
Zhengshuyi Feng   +5 more
doaj   +1 more source

Group velocity and causality in standard relativistic resistive magnetohydrodynamics

open access: yes, 2011
Group velocity of electromagnetic waves in plasmas derived by standard relativistic resistive MHD (resistive RMHD) equations is superluminal. If we assume that the group velocity represents the propagation velocity of a signal, we have to worry about the
J. D. Jackson   +4 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Coal seam thickness prediction method based on multi-frequency joint application of channel wave

open access: yesMeitan kexue jishu
Based on the frequency dispersion theory, the channel wave can inverse the coal seam thickness distribution in mining face and delineate the thin coal area to a certain extent by using a certain frequency or band-pass filter frequency band.
Nianguang QIU   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy