Results 71 to 80 of about 133,787 (285)

Anisotropic singular logistic equations [PDF]

Opuscula Mathematica
We consider a parametric Dirichlet problem driven by the anisotropic \((p,q)\)-Laplacian and a reaction with a singular term and a superdiffusive logistic perturbation.
João Pablo Pinheiro Da Silva, Giuseppe Failla, Leszek Gasiński, Nikolaos S. Papageorgiou   +3 more
doaj   +1 more source

Perturbation and stability theory for Markov control problems [PDF]

, 1992
A unified approach to the asymptotic analysis of a Markov decision process disturbed by an ε-additive perturbation is proposed. Irrespective of whether the perturbation is regular or singular, the underlying control problem that needs to be understood is
Abbad, Mohammed, Filar, Jerzy A
core  

Interaction of sine-Gordon kinks with defects: The two-bounce resonance

, 2003
A model of soliton-defect interactions in the sine-Gordon equations is studied using singular perturbation theory. Melnikov theory is used to derive a critical velocity for strong interactions, which is shown to be exponentially small for weak defects ...
Anninos, Campbell, Campbell, Campbell, Delshams, Diminnie, Diminnie, Fei, Goodman, Goodman, Haberman, Haberman, Kruskal, Malomed, McLaughlin, Melnikov, Peyrard, Richard Haberman, Roy H. Goodman, Tan   +19 more
core   +1 more source

Dual‐Peptide Nanoplatform: Mesoporous Silica Nanoparticles Functionalized With a Cell‐Penetrating Peptide and Loaded With Rationally Designed Antimicrobial Peptides for Tuberculosis Therapy

Advanced Healthcare Materials, EarlyView.
Machine learning–guided engineering of a plectasin‐derived peptide yields DC05, a potent antimycobacterial candidate. Encapsulation into tuftsin‐functionalized mesoporous silica nanoparticles enhances intracellular delivery, stability, and activity against Mycobacterium tuberculosis while maintaining low cytotoxicity and minimal hemolysis. The combined
Christian S. Carnero Canales, Cesar Augusto Roque‐Borda, Ana Carolina Cerqueira Negri, Oswaldo Ramirez Delgado, Letícia Oliveira Catarin Nunes, Flávia Aparecida Resende, Hernane Barud, Norival Alves Santos‐Filho, Saulo Santesso Garrido, Karen Cristina Oliveira, Alexandra Ivo de Medeiros, Rafael Miguel Sábio, Fernando Rogério Pavan   +12 more
wiley   +1 more source

Positive solutions for nonlinear parametric singular Dirichlet problems [PDF]

Bulletin of Mathematical Sciences, 2019
We consider a nonlinear parametric Dirichlet problem driven by the p-Laplace differential operator and a reaction which has the competing effects of a parametric singular term and of a Carathéodory perturbation which is (p − 1)-linear near + ∞.
Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu, Dušan D. Repovš   +2 more
doaj   +1 more source

A parabolic free boundary problem with Bernoulli type condition on the free boundary [PDF]

, 2006
Consider the parabolic free boundary problem $$ \Delta u - \partial_t u = 0 \textrm{in} \{u>0\}, |\nabla u|=1 \textrm{on} \partial\{u>0\} . $$ For a realistic class of solutions, containing for example {\em all} limits of the singular perturbation ...
Georg, Georg S, H. W Alt, John Andersson, John Weiss, L. A. Caffarelli, S. Weiss   +6 more
core   +2 more sources

Selection, Stability and Renormalization

, 1993
We illustrate how to extend the concept of structural stability through applying it to the front propagation speed selection problem. This consideration leads us to a renormalization group study of the problem.
Andronov, Aronson, Bahiana, Ben-Jacob, Bender, Bricmont, Carr, Carr, Carr, Chakrabarti, Chen, Chen, Dee, Dee, Dee, Ginzburg, Glenn Paquette, Goldenfeld, Goldenfeld, goldenfeld, goldenfeld, Goldenfeld, Helfand, Kametaka, Kevorkian, Kolmogorov, Kuramoto, Langer, Leibler, Lin-Yuan Chen, Liu, Murdock, Newell, Nigel Goldenfeld, Ohta, Oono, Oono, Oono, Oono, Oono, Oono, Paquette, Paquette, Peixoto, Peixoto, Roberts, Shub, Shub, Smith, Stokes, Taniuti, Taniuti, van Saarloos, Weinberger, Wilson, Wilson, Wilson, Y. Oono, Zinn-Justin   +58 more
core   +1 more source

Singular-Perturbation Problems in Ship Hydrodynamics [PDF]

, 1977
Publisher Summary This chapter discusses the study of thin-ship prospered and the theory provided some guidance in the reduction of wave resistance, even if it did not give accurate quantitative predictions. The early and continuing success of thin-ship theory is because of two factors: an explicit solution can be found for the case of a ship in ...
openaire   +2 more sources

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi, Naseeh Backer Kannanthodi, Alice Nicole Casling, Babar Ali, Samira Lakouraj Mansouri, Alessandro Giuseppe D'aloia, Hossein Cheraghi Bidsorkhi, Maria Sabrina Sarto   +7 more
wiley   +1 more source

Elliptic perturbations for Hammerstein equations with singular nonlinear term

Electronic Journal of Differential Equations, 2006
We consider a singular elliptic perturbation of a Hammerstein integral equation with singular nonlinear term at the origin. The compactness of the solutions to the perturbed problem and, hence, the existence of a positive solution for the ...
Giuseppe Maria Coclite, Mario Michele Coclite   +1 more
doaj