Results 131 to 140 of about 542,997 (336)
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT The paper establishes an advanced computing algorithm to investigate the thermosolutal dynamics of an electrically conductive Brinkman‐type nanofluid that moves in a porous channel, and the fluid is acted on by an inclined magnetic field exerted externally.
Urwa Shehbaz +4 more
wiley +1 more source
Transforming Coal Waste into Surface‐Engineered Carbons for Lithium–Sulfur Batteries
Batteries &Supercaps, EarlyView.Coal waste is transformed into surface‐engineered porous carbons that suppress polysulfide shuttling and boost Li–S battery performance. Slow redox kinetics and polysulfide shuttling hinder the practical deployment of lithium–sulfur (Li–S) batteries.
Jibril Abdulsalam +4 more
wiley +1 more source
On the Influence of Catalyst Mesopore Structure in the Catalytic Cracking of Polypropylene
ChemistryEurope, EarlyView.Catalytic cracking is a promising approach to convert polyolefin plastics into hydrocarbons. Herein, the effect of catalyst pore size in polypropylene cracking using amorphous silica–alumina with identical external acidity, but varying mesopore diameters and particle sizes, is isolated. Mesopore size has minimal effect on activity, indicating that high
Sebastian Rejman +7 more
wiley +1 more source
Abstract and Applied Analysis, 2012 We study the existence of at least one monotonic positive solution for the nonlocal boundary value problem of the second-order functional differential equation x′′(t)=f(t,x(ϕ(t))), t∈(0,1), with the nonlocal condition ∑k=1makx(τk)=x0, x′(0)+∑j=1nbjx′(ηj)=
A. M. A. El-Sayed +2 more
doaj +1 more source
On fractional order differential equations model for nonlocal epidemics
Physica A: Statistical Mechanics and its Applications, 2007 A fractional order model for nonlocal epidemics is given. Stability of fractional order equations is studied. The results are expected to be relevant to foot-and-mouth disease, SARS and avian flu.
Ahmed, E., Elgazzar, A.S.
openaire +2 more sources
ChemistryEurope, EarlyView.The linear and nonlinear (chir)optical properties of four oligoamide foldamers with different donor groups are studied by means of time‐dependent density functional theory calculations. It is shown that stronger donors yield larger hyperpolarizabilities due to low‐lying charge–transfer states. The agreement with the experiments concerning the key bands
Komlanvi Sèvi Kaka +5 more
wiley +1 more source
Existence of Solutions of Nonlinear Differential Equations with Nonlocal Conditions
Journal of Mathematical Analysis and Applications, 2000 The authors consider the initial value problem for an abstract nonlinear ordinary differential equation of first order in some Banach space. The initial condition, which is a nonlocal condition, is of the type \(y(0)+ g(y)=y_0\), where \(g\) is some continuous function.
Benchohra, M., Ntouyas, S. K.
openaire +2 more sources
A problem with nonlocal conditions for partial differential equations with constant coefficients [PDF]
, 2010 O. D. Vlasii
openalex +1 more source