Results 131 to 140 of about 91,889 (335)
Semilinear integrodifferential equations with nonlocal initial conditions
Computers & Mathematics with Applications, 2004 AbstractOf concern is the Cauchy problem for semilinear integrodifferential equations with nonlocal initial conditions. Under general and natural hypotheses, we establish some new theorems about the existence and uniqueness of solutions for the Cauchy problem.
Ti-Jun Xiao +3 more
openaire +2 more sources
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract This paper presents a novel technology for converting glycerol, a byproduct of the biodiesel industry, into glycerol carbonate, a high‐value bioproduct. The effect of calcination temperature on the synthesis of quaternary Cu‐Ni‐Mg‐Al catalysts (MMO‐Cu15Ni15‐Tz) and their application in the transesterification reaction was investigated ...
Dalma S. Argüello +5 more
wiley +1 more source
Role of boundary conditions in convergence and nonlocality of solutions to stochastic flow problems in bounded domains [PDF]
, 2000 F. Alejandro Bonilla, John H. Cushman
openalex +1 more source
ChemistryEurope, EarlyView.Using density functional theory calculations, and by comparing calculated gas‐phase formation energies, bulk cohesive energies, lattice constants, and nitrogen and ammonia adsorption energies on Fe and Fe‐nitride surfaces to experimental estimates, the accuracy of several XC functionals is assessed for modeling iron‐catalyzed ammonia synthesis. Density
Evangelos Smith +2 more
wiley +1 more source
Positive solutions of a boundary value problem with integral boundary conditions
Electronic Journal of Differential Equations, 2011 We consider boundary-value problems studied in a recent paper. We show that some existing theory developed by Webb and Infante applies to this problem and we use the known theory to show how to find improved estimates on parameters $mu^*, lambda ...
Jeff R. L. Webb
doaj
What Types of Knowledge‐Intensive Business Services Use Services as a Source of Innovation?
Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l'Administration, EarlyView.ABSTRACT The paper examines the factors that influence why knowledge‐intensive business services (KIBS) draw from other KIBS firms in their innovation activities. We provide new empirical evidence on specific firm‐level conditions under which the interactions between KIBS–KIBS are more (or less) likely to be observed. The effects of internal resources,
David Doloreux +2 more
wiley +1 more source
Study of Solutions to Some Functional Differential Equations with Piecewise Constant Arguments
Abstract and Applied Analysis, 2012 We provide optimal conditions for the existence and uniqueness of solutions to a nonlocal boundary value problem for a class of linear homogeneous second-order functional differential equations with piecewise constant arguments.
Juan J. Nieto, Rosana Rodríguez-López
doaj +1 more source
ChemPhysChem, Volume 26, Issue 6, March 15, 2025.The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida +3 more
wiley +1 more source
On a class of nonclassical hyperbolic equations with nonlocal conditions [PDF]
, 2000 Abdelfatah Bouziani
openalex +1 more source
A review of multiscale numerical modeling of rock mechanics and rock engineering
Deep Underground Science and Engineering, EarlyView.Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley +1 more source