Results 61 to 70 of about 919 (260)

Optical Multiphase Conductivity Inline Probe: Characterization and Analysis of Foam Structures

open access: yesChemie Ingenieur Technik, EarlyView.
A novel inline probe combines optical imaging and electrical conductivity within a shared measurement volume, enabling simultaneous determination of foam structure and composition. The method provides real‐time access to cell size distributions and liquid fractions under process conditions. ABSTRACT For inline process analysis of foams, a novel optical
Marc Hofmann   +3 more
wiley   +1 more source

A new nonlinear impulsive delay differential inequality and its applications

open access: yesJournal of Inequalities and Applications, 2011
In this article, a new nonlinear impulsive delay differential inequality is established, which can be applied in the dynamical analysis of nonlinear systems to improve many extant results.
Wang Huali, Ding Changming
doaj  

Optimal control problem for the impulsive differential equations with non-local boundary conditions

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The optimal control problem is investigated, where the state of the controlled system is described by the impulsive differential equations with non-local boundary conditions.
Yagub A Sharifov
doaj   +1 more source

Clathrate hydrate crystallization

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source

Integral BVPs for a Class of First-Order Impulsive Functional Differential Equations

open access: yesInternational Journal of Differential Equations, 2010
The methods of lower and upper solutions and monotone iterative technique are employed to the study of integral boundary value problems for a class of first-order impulsive functional differential equations.
Xiaofei He   +3 more
doaj   +1 more source

Review of CFD modelling techniques for single‐phase and multiphase flow in static mixers

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
This review synthesizes computational fluid dynamics (CFD) approaches for static mixers, linking hydrodynamics to pressure drop, particle/droplet distributions, mixing metrics, and heat‐transfer performance to guide modelling choices and design decisions. Abstract Static mixers enable compact and low‐energy intensification.
Jussan Jaeger   +7 more
wiley   +1 more source

Asymptotic stability for impulsive functional differential equation

open access: yesJournal of Mathematical Analysis and Applications, 2007
This paper investigates the stability of impulsive functional differential equations. By extending Lyapunov's approach, some sufficient conditions are given for asymptotic stability and uniformly asymptotic stability of the equations. The obtained theorems extend or improve some existing results in recent publications.
Chen, Fulai, Wen, Xianzhang
openaire   +2 more sources

Multiple solutions for impulsive semilinear functional and neutral functional differential equations in Hilbert space

open access: yesJournal of Inequalities and Applications, 2005
The well-known Krasnoselskii twin fixed point theorem is used to investigate the existence of mild solutions for first- and second-order impulsive semilinear functional and neutral functional differential equations in Hilbert spaces.
Henderson J   +3 more
doaj  

Greenwashing in the Spotlight: Synthesising Evidence on Unethical Environmental Claims and Future Pathways

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Firms are experiencing mounting pressure to report their environmental impact. Rather than disclosing their actual performance, however, some are engaging in unethical business (i.e., greenwashing) practices. Prior studies have contributed significantly to the greenwashing literature from varied perspectives, but a comprehensive understanding ...
Sher Jahan Khan   +4 more
wiley   +1 more source

Existence of solutions for impulsive neutral functional differential equations with multiple delays

open access: yesElectronic Journal of Differential Equations, 2008
In this paper an existence result for initial value problems for first order impulsive neutral functional differential equations with multiple delay is proved under weak conditions.
Mustapha Lakrib
doaj  

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