Results 31 to 40 of about 794,452 (335)

Grain-Boundary Resistance and Nonlinear Coefficient Correlation for SnO2-Based Varistors [PDF]

open access: yesMaterials Research, 2016
This work has focused on the electrical and microstructural properties of Nb2O5-doped SnO2-MnO2 ceramics. The pellets were prepared by solid-state reaction method according to the system (99.5-x) SnO2 - 0.5 MnO2 - x Nb2O5, on the following molar ratio x =
Mateus Gallucci Masteghin   +1 more
doaj   +1 more source

"Dispersion management" for solitons in a Korteweg-de Vries system [PDF]

open access: yes, 2001
The existence of ``dispersion-managed solitons'', i.e., stable pulsating solitary-wave solutions to the nonlinear Schr\"{o}dinger equation with periodically modulated and sign-variable dispersion is now well known in nonlinear optics. Our purpose here is
Clarke, Simon   +2 more
core   +2 more sources

Existence of cylindrically symmetric ground states to a nonlinear curl-curl equation with non-constant coefficients [PDF]

open access: yes, 2016
We consider the nonlinear curl-curl problem $\nabla\times\nabla\times U + V(x) U=f(x,|U|^2)U$ in $\mathbb{R}^3$ related to the nonlinear Maxwell equations with Kerr-type nonlinear material laws.
Hirsch, Andreas, Reichel, Wolfgang
core   +3 more sources

Energy Transfer Efficiency Based Nonlinear Ultrasonic Testing Technique for Debonding Defects of Aluminum Alloy Foam Sandwich Panels

open access: yesSensors, 2023
In order to improve the accuracy of detection results of debonding defects of aluminum alloy thin plate, the nonlinear ultrasonic technology is used to detect the simulated defect samples, aiming at problems such as near surface blind region caused by ...
Jun Tu   +4 more
doaj   +1 more source

The nature of an enhanced ferroelectric phase transition temperature in perovskite-based solid solutions [PDF]

open access: yes, 2004
We explain the phenomena of ferroelectric phase transition temperature $T_c$ enhancement beyond the end members in perovskite solid solutions like BiMeO$_3$-PbTiO$_3$ (Me=Sc, In, etc.) is related to nonlinear and spatial correlation effects.
Glinchuk, M. D.   +2 more
core   +1 more source

Do Athermal Amorphous Solids Exist?

open access: yes, 2011
We study the elastic theory of amorphous solids made of particles with finite range interactions in the thermodynamic limit. For the elastic theory to exist one requires all the elastic coefficients, linear and nonlinear, to attain a finite thermodynamic
D. Jang   +5 more
core   +1 more source

Passive targeted energy transfers and strong modal interactions in the dynamics of a thin plate with strongly nonlinear attachments [PDF]

open access: yes, 2001
We study Targeted Energy Transfers (TETs) and nonlinear modal interactions attachments occurring in the dynamics of a thin cantilever plate on an elastic foundation with strongly nonlinear lightweight attachments of different configurations in a more ...
Fotios Georgiades   +20 more
core   +4 more sources

Nonlinear DNA dynamics: nonlinearity versus dispersion

open access: yes, 2012
In the present paper we study the impact of dispersion and nonlinearity on DNA dynamics. We rely on the helicoidal Peyrard-Bishop model and use the fact that nonlinear DNA dynamics represents an interplay between nonlinearity and dispersion.
Satarić, Miljko V.   +1 more
core   +1 more source

ON INTEGRABILITY OF VARIABLE COEFFICIENT NONLINEAR SCHRÖDINGER EQUATIONS [PDF]

open access: yesReviews in Mathematical Physics, 2012
We apply Painlevé test to the most general variable coefficient nonlinear Schrödinger (VCNLS) equations as an attempt to identify integrable classes and compare our results versus those obtained by the use of other tools like group-theoretical approach and the Lax pairs technique of the soliton theory.
Özemir, Cihangir, Güngör, Faruk
openaire   +3 more sources

Technical research of a new type of optical fibre with ultra-low-loss and large effective area

open access: yesDianxin kexue, 2020
The technical solutions of double-cladding waveguide structure and pure SiO2core were taken,the G.654.E type ULA-130 fibre ultra-low-loss and large effective area was realized by F-doping design and optimization of the viscosity match between core and ...
Di HAN   +4 more
doaj  

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