Results 31 to 40 of about 117,839 (311)
Equilibrium and Stability of Entropy Operator Model for Migratory Interaction of Regional Systems
Mathematics, 2019 In this paper, we develop a dynamic model for migratory interaction of regional systems that is based on an entropy operator. Next, we study the properties of this operator and establish the existence of a unique singular point in the dynamic entropy ...
Yuri S. Popkov, Leo van Wissen
doaj +1 more source
SINGULAR POINTS FOR THE SUM OF A SERIES OF EXPONENTIAL MONOMIALS
Проблемы анализа, 2018 A problem of distribution of singular points for sums of series of exponential monomials on the boundary of its convergence domain is studied. The influence of a multiple sequence Λ = {λk, nk}_(∞;k=1) of the series in the presence of singular points on ...
Krivosheeva O . A . +1 more
doaj +1 more source
Study of Stability of Non-linear Model with Hyperbolic Secant Function [PDF]
مجلة التربية والعلم, 2019 We study a new definition of a non-linear model of time series with hyperbolic secant function in a discrete time. The suggested model consist of two parts the first part is (linear) and the second part is (non-linear) which contains the hyperbolic ...
Anas Salim Youns Youns, Abdul Salim
doaj +1 more source
Analytic Sinusoidal Steady-State Electromagnetic Field Expressions for the Ideal Veselago Lens
IEEE Open Journal of Antennas and Propagation, 2021 Analytic expressions for the sinusoidal steady-state electromagnetic field associated with an ideal Veselago lens illuminated by either a line-source (2D case) or an electric dipole point-source (3D case) are obtained based on power flow considerations ...
Marzieh Eini Keleshteri +2 more
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin +2 more
wiley +1 more source
Implicit differential equations near a singular point [PDF]
, 1989 This paper presents general and precise results on existence and number of solutions to implicitly defined ordinary differential equations in the vicinity of a singular point, where the equation is not equivalent to an explicit one.
Rabier, Patrick J.
core +1 more source
Singular points of algebraic curves
Journal of Symbolic Computation, 1990 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Takis Sakkalis, Rida T. Farouki
openaire +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Flows of singular vector fields and applications to fluid and kinetic equations [PDF]
, 2015 Several physical phenomena arising in fluid dynamics and kinetic equations can be modeled by nonlinear transport PDE. Such quantities are the vorticity of a fluid, or the density of a collection of particles advected by a velocity field which is highly ...
Bohun, Anna
core +1 more source
Walking to singular points of fingerprints
Pattern Recognition, 2016 Singular point is an essential global feature in fingerprint images. Existing methods for singular points' detection generally visit each pixel or each small image block to determine the singular point. That is to say, existing methods require scanning the image to compute a quantity at each pixel or block, and hence they are inevitably time-consuming.
En Zhu, Xifeng Guo 0001, Jianping Yin
openaire +2 more sources