Results 31 to 40 of about 444,674 (286)

Analytical Solutions to the Navier-Stokes-Poisson Equations with Density-dependent Viscosity and with Pressure

, 2010
We study some particular solutions to the Navier-Stokes-Poisson equations with density-dependent viscosity and with pressure, in radial symmetry. With extension of the previous known blowup solutions for the Euler-Poisson equations / pressureless Navier ...
Hei, Yeung Ling, Manwai, Yuen
core   +1 more source

Equivalence of Viscosity and Weak Solutions for the $p(x)$-Laplacian [PDF]

, 2010
We consider different notions of solutions to the $p(x)$-Laplace equation $-\div(\abs{Du(x)}^{p(x)-2}Du(x))=0$ with ...
Acerbi, Acerbi, Adamowicz, Alkhutov, Bieske, Chen, Coscia, Crandall, Crandall, Diening, Edmunds, Fan, Harjulehto, Harjulehto, Horn, Jensen, Juutinen, Juutinen, Koike, Kováčik, Lindqvist, Manfredi, Martio, Mikko Parviainen, Peres, Petri Juutinen, Ružička, Samko, Teemu Lukkari, Zhikov   +29 more
core   +3 more sources

Existence of Viscosity Solutions for Weakly Coupled Cooperative Parabolic Systems with Fully Nonlinear Principle Part

Mathematics
In this paper, the existence of viscosity solutions for weakly coupled, degenerate, and cooperative parabolic systems is studied in a bounded domain. In particular, we consider the viscosity solutions of parabolic systems with fully nonlinear degenerated
Georgi Boyadzhiev, Nikolay Kutev
doaj   +1 more source

Rheology of Polyhydroxyalkanoate Solutions [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2016
The rheology of solutions of polyhydroxyalkanoates in chloroform and dichloromethane was studied. The dynamic viscosity of solutions depended on type of solvent and PHA.
Dmitry B. Goncharov, Alexey G. Sukovatyi
doaj  

Vanishing Viscosity Solutions of the Compressible Euler Equations with Spherical Symmetry and Large Initial Data

, 2014
We are concerned with spherically symmetric solutions of the Euler equations for multidimensional compressible fluids, which are motivated by many important physical situations.
Chen, Gui-Qiang G., Perepelitsa, Mikhail
core   +1 more source

Generalized Liouville theorem for viscosity solutions to a singular Monge-Ampère equation

Advances in Nonlinear Analysis, 2023
In this article, we study the asymptotic behaviour at infinity for viscosity solutions to a singular Monge-Ampère equation in half space from affine geometry.
Jian Huaiyu, Wang Xianduo
doaj   +1 more source

Upper- and lower-bound solutions for sectional penetration grouting pressure under time-dependent viscosity of slurry

Yantu gongcheng xuebao, 2023
Under the time-dependent viscosity of slurry, the grouting pressure (p) and the grouting rate (q) are both time-dependent, which makes design and calculation more difficult in grouting project. Firstly, the engineering definitions of grouting pressure (P)
WANG Junhui , HAN Xuan
doaj   +1 more source

Rheology of polysulfone-N-methylpyrrolidone solutions used in the technology of lithium-ion batteries

Applied Rheology, 2020
This paper is devoted to the analysis of the rheological properties of polysulfone solutions in N-methylpyrrolidone, which are an intermediate stage in preparing lithium-ionic batteries.
Kulichikhin V. G., Malkin A.Ya., Gumennyi I.V., Govorov V.A.   +3 more
doaj   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source