Results 141 to 150 of about 631,160 (294)

Traveling Fronts for (q,r)$(q, r)$‐Relativistic Operators: Existence and Asymptotic Properties

open access: yesMathematische Nachrichten, EarlyView.
ABSTRACT A new reaction–diffusion model governed by a (q,r)$(q, r)$‐relativistic type diffusion, generalizing the p$p$‐relativistic one and encompassing singular and/or degenerate diffusivity, is introduced. In the monostable case, some existence results for (decreasing) fronts are then provided, exploiting the study of a suitable two‐point problem ...
Pavel Drábek   +2 more
wiley   +1 more source

On the analyzing of bifurcation properties of the one‐dimensional Mackey–Glass model by using a generalized approach

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
The goal of this work is to look at how a nonlinear model describes hematopoiesis and its complexities utilizing commonly used techniques with historical and material links. Based on time delay, the Mackey–Glass model is explored in two instances. To offer a range, the relevance of the parameter impacting stability (bifurcation) is recorded.
Shuai Zhang   +5 more
wiley   +1 more source

The Combined Effects of Variable Viscosity and Thermal Conductivity of An Unsteady Casson Fluid Flow Along a Vertical Porous Channel With Convective Cooling Walls, Using the Bivariate Spectral Local Linearization Method

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This study examines the combined impact of different thermal conductivity and viscosity on unsteady non‐Newtonian Casson fluid flow of incompressible, electrical conductivity in a porous vertical channel with convective cooling walls, uniform magnetic field, and constant pressure gradient.
A. S. Adeyemo   +2 more
wiley   +1 more source

Lorentz, P. an Herman Grimm (1 Brief)

open access: yes, 1900
LORENTZ, P. AN HERMAN GRIMM (1 BRIEF) Lorentz, P.
Grimm, Herman, Lorentz, P.
core   +1 more source

Origin and application of the Lorentz factor in X-ray diffraction. [PDF]

open access: yesActa Crystallogr A Found Adv
Gasser F   +5 more
europepmc   +1 more source

On Geometric Phase Model in the Theory of Curves With Myller Configuration

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we introduce a linearly polarized light wave in an optical fiber and rotation of the polarization plane through the Frenet‐type frame with Myller configuration. Since the geometric evaluation and interpretations of a polarized light wave are associated with geometric phase, a new type of geometric phase model has been ...
Zehra İşbilir   +2 more
wiley   +1 more source

The Evolution of Crystal Structure in Polypropylene as It Goes From Pellet to Powder to Print in Powder Bed Fusion Additive Manufacturing

open access: yesJournal of Polymer Science, EarlyView.
Small angle x‐ray scattering provides insight into the change in crystalline structure in polypropylene molecular weight blends as the polypropylene is transformed from commercial pellets to a powder suitable for powder bed fusion (PBF), and then further transformed to a part printed by PBF.
Timothy Taylor   +6 more
wiley   +1 more source

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