Results 11 to 20 of about 371,710 (261)

Global solvability in a three-dimensional Keller-Segel-Stokes system involving arbitrary superlinear logistic degradation

Advances in Nonlinear Analysis, 2020
The Keller-Segel-Stokes ...
Wang Yulan, Winkler Michael, Xiang Zhaoyin   +2 more
doaj   +1 more source

Boundedness in a two-dimensional chemotaxis system with signal-dependent motility and logistic source

Boundary Value Problems, 2023
In this paper, we study the following chemotaxis system with a signal-dependent motility and logistic source: { u t = Δ ( γ ( v ) u ) + μ u ( 1 − u α ) , x ∈ Ω , t > 0 , 0 = Δ v − v + u r , x ∈ Ω , t > 0 , u ( x , 0 ) = u 0 ( x ) , x ∈ Ω $$ \textstyle ...
Yanmei Hu, Wanjuan Du
doaj   +1 more source

Stabilization in a two-species chemotaxis system with a logistic source [PDF]

Nonlinearity, 2012
We study a system of three partial differential equations modelling the spatiotemporal behaviour of two competitive populations of biological species both of which are attracted chemotactically by the same signal substance. For a range of the parameters the system possesses a uniquely determined spatially homogeneous positive equilibrium (u?, v ...
Tello del Castillo, José Ignacio, Winkler, Michael   +1 more
openaire   +2 more sources

Boundedness of classical solutions to a chemotaxis consumption system with signal dependent motility and logistic source

Comptes Rendus. Mathématique, 2023
We consider the chemotaxis system: \begin{equation*} {\left\lbrace \begin{array}{ll} u_{t}=\nabla \cdot \big (\gamma (v) \nabla u-u \,\xi (v) \nabla v\big )+\mu \, u(1-u), & x\in \Omega , \ t>0, \\ v_{t}=\Delta v-uv, & x\in \Omega , \ t>0, \end{array ...
Baghaei, Khadijeh
doaj   +1 more source

Pattern formation for a nonlinear diffusion chemotaxis model with logistic source

Boundary Value Problems, 2018
This paper deals with a Neumann boundary value problem in a d-dimensional box Td=(0,π)d $\mathbb{T}^{d}=(0,\pi)^{d}$ ( d=1,2,3 $d=1, 2, 3$) for a nonlinear diffusion chemotaxis model with logistic source.
Chengying Niu, Haiyan Gao, Shenghu Xu, Guohua Yang   +3 more
doaj   +1 more source

Source Recertification, Refurbishment, and Transfer Logistics [PDF]

, 2013
The 2012 Gap Analysis of Department of Energy Radiological Sealed Sources, Standards, and Materials for Safeguards Technology Development [1] report, and the subsequent Reconciliation of Source Needs and Surpluses across the U.S. Department of Energy National Laboratory Complex [2] report, resulted in the identification of 33 requests for nuclear or ...
Gastelum, Zoe N., Duckworth, Leesa L., Greenfield, Bryce A., Doll, Stephanie R.   +3 more
openaire   +2 more sources

Persistence of mass in a chemotaxis system with logistic source

Journal of Differential Equations, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tao, Youshan, Winkler, Michael
openaire   +2 more sources

Blow-up of a higher-dimensional Keller-Segel system with logistic source

四川大学学报. 自然科学版, 2022
The Cauchy problem of the Keller-Segel system with logistic source is considered. Under some conditions, we show that there exist initial data such that the smooth local-in-time solution of the system blows up in finite time, and thus the superlinear ...
LIU Meng-Qi, LI Jia-Wen, HAN Yong-Jie
doaj  

simpleNomo: A Python Package of Making Nomograms for Visualizable Calculation of Logistic Regression Models

Health Data Science, 2023
Background: Logistic regression models are widely used in clinical prediction, but their application in resource-poor settings or areas without internet access can be challenging.
Haoyang Hong, Shenda Hong
doaj   +1 more source

LOGISTICS OUT SOURCING & TRUST: CONCEPTUAL FRAME WORK

Revue Economie, Gestion et Société, 2021
Revue Economie, Gestion et Société, مجلد 1, عدد 29 (2021)
Mouaad CHAFAI, Issam NAJATI, Assia SLIMANI, Abdellah HOUSSAINI   +3 more
openaire   +2 more sources