| |
|
This paper investigates a simple one-dimensional model of incommensurate harmonic crystal in terms of the spectrum of the corresponding Schrödinger equation. Two angles of attack are studied: the first exploits techniques borrowed from the theory of quasi-periodic functions while the second… |
| |
|
Alarms periodically emerge for viral pneumonia infections due to coronavirus. In all cases, these are zoonoses passing the barrier between species and infect humans. The legitimate concern of the international community is due to the fact that the new identified coronavirus, named SARS-CoV-2 (… |
| |
|
A Boundary Element Method (BEM) hydrodynamics combined with a flow-alignment technique to evaluate blades shed
vorticity is presented and applied to a marine propeller in open water. Potentialities and drawbacks of this approach in capturing
propeller performance, slipstream velocities, blade… |
| |
|
Implantation of drug eluting stents following percutaneous trans-
luminal angioplasty has revealed a well established technique for treating occlusions caused by the atherosclerotic plaque. However, due to the risk of vascular
re-occlusion, other alternative therapeutic strategies of drug delivery… |
| |
|
t. The present work was inspired by the recent developments in laboratory experiments made on chip, where culturing of multiple cell species was
possible. The model is based on coupled reaction-diffusion-transport equations
with chemotaxis, and takes into account the interactions among cell… |
| |
|
In this paper the phase behavior and pattern formation in a sheared nonideal fluid under a periodic potential is studied. An isothermal two-dimensional formulation of a lattice Boltzmann scheme for a liquid-vapor system with the van der Waals equation of state is presented and validated. Shear is… |
| |
|
In this paper we present algorithms for approximating real band-limited signals by multiple Gaussian Chirps. These algorithms do not rely on matching pursuit ideas. They are hierarchial and, at each stage, the number of terms in a given approximation depends only on the number of positive-valued… |
| |
|
An extended version of the Maz'ya-Shaposhnikova theorem on the limit as s -> 0+
of the Gagliardo-Slobodeckij fractional seminorm is established in the Orlicz space
setting. Our result holds in fractional Orlicz-Sobolev spaces associated with Young
functions satisfying the \Delta2-condition, and… |
| |
|
|
| |
|
Spiral waves appear in many different contexts: excitable biological
tissues, fungi and amoebae colonies, chemical reactions, growing crystals, fluids
and gas eddies as well as in galaxies. While the existing theories explain the
presence of spirals in terms of nonlinear parabolic equations, in… |
