Results 11 to 20 of about 1,188,877 (313)

The second spectrum of Timoshenko beam theory - Further assessment [PDF]

open access: yes, 2006
A review of contributions and views on the second spectrum of Timoshenko beam theory (TBT) over the past two decades, together with some new results, are presented.
Stephen, N.G.
core   +1 more source

Nonlinear Spectrum Modulation in the Anomalous Dispersion Regime Using Second- and Third-Order Solitons

open access: yesPhotonics, 2022
We study the robustness of a nonlinear frequency-division multiplexing (NFDM) system, based on the Zakharov-Shabat spectral problem (ZSSP), that is comprised of two independent quadrature phase-shift keyed (QPSK) channels modulated in the discrete ...
Thiago D. S. De Menezes   +6 more
doaj   +1 more source

Spectrum of the Second Variation [PDF]

open access: yesProceedings of the Steklov Institute of Mathematics, 2019
22 ...
openaire   +4 more sources

Maternal and Fetal Outcomes after Prior Mid-Trimester Uterine Rupture: A Systematic Review with Our Experience

open access: yesMedicina, 2021
Background and Objectives: Since spontaneous uterine rupture in the mid-trimester is rare, maternal and fetal outcomes in subsequent pregnancies remain unclear.
Shinya Matsuzaki   +7 more
doaj   +1 more source

On the weakly second spectrum of a module

open access: yesFilomat, 2016
In this paper, we extend the definition of weakly second submodule of a module over a commutative ring to a module over an arbitrary ring. First, we investigate some properties of weakly second submodules. We define the notion of weakly second radical of a submodule and determine the weakly second radical of some modules. We also define the
Ceken, Secil, Alkan, Mustafa
openaire   +3 more sources

On IP2 impact to nonlinear distortion of RF amplifiers

open access: yesThe Journal of Engineering, 2021
The second‐order distortion, often using second‐order intercept point (IP2) as an indicator, has been considered easy to be filtered in narrowband radio frequency (RF) communications because it is located far away from the passband of transmitted signals.
Xianzhen Yang   +3 more
doaj   +1 more source

Second Spectrum of Modules and Spectral Spaces

open access: yesBulletin of the Malaysian Mathematical Sciences Society, 2017
All rings $R$ in this paper are commutative with identity and all modules are unital right $R$-modules. Recall that a module $M$ is said to be a second module if $M \neq 0$ and $\mathrm{ann}_{R}(M) =\mathrm{Ann}_{R}(M/N)$ for every proper submodule $N$ of $M$.
Ceken, Secil, Alkan, Mustafa
openaire   +3 more sources

The second order spectrum and optimal convergence [PDF]

open access: yesMathematics of Computation, 2013
The method of second order relative spectra has been shown to reliably approximate the discrete spectrum for a self-adjoint operator. We extend the method to normal operators and find optimal convergence rates for eigenvalues and eigenspaces. The convergence to eigenspaces is new, while the convergence rate for eigenvalues improves on the previous ...
openaire   +4 more sources

A new method of calculation of Franck-Condon factors which includes allowance for anharmonicity and the Duschinsky effect: Simulation of the HeI photoelectron spectrum of ClO2 [PDF]

open access: yes, 2000
A new method of Franck-Condon (FC) factor calculation for nonlinear polyatomics, which includes anharmonicity and Duschinsky rotation, is reported. Watson's Hamiltonian is employed in this method with multidimensional ab initio potential energy functions.
Chau, F. T.   +14 more
core   +1 more source

Fučik Spectrum for the Second Order BVP with Nonlocal Boundary Condition

open access: yesNonlinear Analysis, 2007
We construct the Fučik spectrum for some second order boundary value problem with nonlocal boundary condition. This spectrum differs essentially from the known Fučik spectra.
N. Sergejeva
doaj   +1 more source

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