Results 81 to 90 of about 125,191 (194)

Steady state spurious errors in shock-capturing numerical schemes [PDF]

open access: yes
The behavior of the steady state spurious error modes of the MacCormack scheme and the upwind scheme of Warming and Beam was obtained from a linearized difference equation for the steady state error. It was shown that the spurious errors can exist either
Karlsen, L. K.
core   +1 more source

LiTaO3‐ on‐YAG surface acoustic wave resonator with low TCF and spurious modes mitigation

open access: yesElectronics Letters
Surface acoustic wave (SAW) resonators employing LiTaO3 piezoelectric platelet on yttrium aluminium garnet (YAG) substrate are designed with a low temperature coefficient of frequency (TCF) and spurious modes suppression.
Ventsislav Yantchev   +3 more
doaj   +1 more source

The Mandelstam--Leibbrandt Prescription and the Discretized Light Front Quantization [PDF]

open access: yes, 1994
It is shown that the quantization of the unphysical degrees of freedom, which leads to the Mandelstam--Leibbrandt prescription for the infrared spurious singularities in the continuum light cone gauge, does indeed suggest some quite natural recipe to ...
Soldati, Roberto
core   +1 more source

Energise or De-Energise to Trip?

open access: yesMeasurement + Control, 2008
“De-energise to trip” is a long established principle because of the danger of common cause failures. Although there is little published on this topic, it is covered in the section “Protection systems (trips and interlocks)” in the HSE Technical Measure ...
A G Foord, C R Howard
doaj   +1 more source

Multi-mode mediated exchange coupling in cavity QED

open access: yes, 2010
Microwave cavities with high quality factors enable coherent coupling of distant quantum systems. Virtual photons lead to a transverse exchange interaction between qubits, when they are non-resonant with the cavity but resonant with each other.
A. Abragam   +10 more
core   +1 more source

Excited Baryon Decay Widths in Large N_c QCD

open access: yes, 2003
We study excited baryon decay widths in large N_c QCD. It was suggested previously that some spin-flavor mixed-symmetric baryon states have strong couplings of O(N_c^{-1/2}) to nucleons [implying narrow widths of O(1/N_c)], as opposed to the generic ...
A.J. Buchmann   +37 more
core   +1 more source

Implicit Euler numerical simulations of sliding mode systems [PDF]

open access: yes, 2009
In this report it is shown that the implicit Euler time-discretization of some classes of switching systems with sliding modes, yields a very good stabilization of the trajectory and of its derivative on the sliding surface.
Acary, Vincent, Brogliato, Bernard
core   +3 more sources

Detection of spurious modes in resonance mode computations

open access: yes, 2012
To solve partial differential equations on unbounded domains numerically, the unbounded domain is typically divided into a bounded interior domain and an unbounded exterior domain. The equation is then only solved on the bounded interiour domain and transparent boundary conditions are applied on the interface between the interior and the exterior ...
openaire   +1 more source

Modeling for High-Frequency Spurious Responses in Incredible High-Performance Surface Acoustic Wave Devices

open access: yesMicromachines
To ensure that surface acoustic wave (SAW) filters fulfill the requirements of Carrier Aggregation (CA) applications, the development of modeling tools that can forecast and simulate high-frequency spurious responses has been necessary.
Guanzhen Jiang   +7 more
doaj   +1 more source

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