Results 91 to 100 of about 239,904 (190)

Solitary and soliton solutions of the nonlinear fractional Chen Lee Liu model with beta derivative

Scientific Reports
The nonlinear Chen-Lee-Liu (NCLL) model is a crucial mathematical model for assessing optical fiber communication systems. It incorporates various factors, including noise, dispersion, and nonlinearity, which can influence signal quality and data ...
Akhtar Hussain, Tarek F. Ibrahim, Faizah D. Alanazi, Waleed M. Osman, Arafa A. Dawood, Jorge Herrera   +5 more
doaj   +1 more source

Extraction of optical wave structures to the coupled fractional system in magneto-optic waveguides

Arab Journal of Basic and Applied Sciences
In this article, truncated M-fractional coupled nonlinear Schrodinger equation (NLSE) with quadratic–cubic nonlinearity is under observation. The studied model is composed of chromatic dispersion, magneto-optic parameter and inter-modal dispersion.
Jan Muhammad, Muhammad Bilal Riaz, Usman Younas, Naila Nasreen, Adil Jhangeer, Dianchen Lu   +5 more
doaj   +1 more source

Mechanistic study of filler dispersion enhancement in rubbers with environmentally safe processing oils

Results in Engineering
The adoption of environmentally safer oils, such as TDAE (Treated Distillate Aromatic Extract), in rubbers has traditionally been approached with caution due to concerns over potential deterioration in filler dispersion and adverse impacts on mechanical ...
Iman Abbasi Shahdehi, Mohammad Abbasi-Soureshjani, Mohammad Alimardani   +2 more
doaj   +1 more source

Sub pico-second pulses in mono-mode optical fibers with Triki-Biswas model

Scientific Reports
This study explores the Triki-Biswas (TB) model, a novel model describing soliton dynamics in monomodal optical fibers with non-Kerr dispersion, to obtain optical solitons.
Akhtar Hussain, Tarek F. Ibrahim, Faizah D. Alanazi, Ariana Abdul Rahimzai, Arafa A. Dawood, Waleed M. Osman   +5 more
doaj   +1 more source

Optical solitons and stability analysis for NLSE with nonlocal nonlinearity, nonlinear chromatic dispersion and Kudryashov’s generalized quintuple-power nonlinearity

Results in Physics
In this paper, we consider the nonlinear Schrödinger equation (NLSE) with nonlocal nonlinearity having nonlinear chromatic dispersion and Kudryashov’s generalized quintuple-power.
Wafaa B. Rabie, Hamdy M. Ahmed, Islam Samir, Mahmoud Alnahhass   +3 more
doaj   +1 more source

A Note on NPML Estimation for Exponential Family Regression Models with Unspecified Dispersion Parameter [PDF]

Austrian Journal of Statistics, 2006
Nonparametric maximum likelihood (NPML) estimation for exponential families with unspecified dispersion parameter ? suffers from computational instability, which can lead to highly fluctuating EM trajectories and suboptimal solutions, in particular when ? is allowed to vary over mixture components. In this paper, a damped version of the EM algorithm is
Einbeck, J., Hinde, J.
openaire   +1 more source

New Exponential Dispersion Models for Count Data ????????? a Review and Applications

This chapter describes a methodology of constructing probability distributions on the nonnegative integers (aka counting distributions). Counting distributions have historic roots as they have been studied since the beginning of Probability Theory. The reason is their statistical importance and applicability in almost all societal and scientific areas.
Shaul K. Bar-Lev, Ad Ridder
openaire   +1 more source

The Influence of Roughness on the UCS of Discontinuous Jointed Rocks

Shock and Vibration
Joint roughness and size effect are key factors controlling the uniaxial compressive strength (UCS) of discontinuous jointed rock masses. However, there is currently a lack of a unified quantitative model that can simultaneously characterize the ...
Wenxu Liang, Yaolin Cao, Wei Fu, Gaojian Hu   +3 more
doaj   +1 more source

Some discrete exponential dispersion models : poisson-tweedie and hinde-demétrio classes

SORT- Statistics and Operations Research Transactions, 2004
In this paper we investigate two classes of exponential dispersion models (EDMs) for overdispersed count data with respect to the Poisson distribution. The first is a class of Poisson mixture with positive Tweedie mixing distributions. As an approximation (in terms of unit variance function) of the first, the second is a new class of EDMs characterized
Kokonendji, Célestin C., Dossou-Gbété, Simplice, Demétrio, Clarice G.B.   +2 more
openaire   +4 more sources

Linear stability and dispersive soliton propagation in nonlinear media subject to parabolic phase modulation. [PDF]

Sci Rep
Morgan M, Ahmed HM, Sayed M, Soliman M.
europepmc   +1 more source