Results 91 to 100 of about 104,269 (299)

Gibbs energy minimization thermodynamics for CO2 capture by aqueous amines: Conservation laws, concentration variables, and parameter consistency

The Canadian Journal of Chemical Engineering, EarlyView.
We clarify how Gibbs‐energy‐minimization models for aqueous‐amine CO2 capture fail when conservation constraints and concentration conventions are inconsistent. Exact standard‐state conversions and Reaktoro case studies show that P(CO2)‐loading fits can mask non‐unique parameters and wrong speciation, motivating complete water‐inclusive formulations ...
William R. Smith, William Rutherford, Allan M. M. Leal   +2 more
wiley   +1 more source

Generalized Lagrange Multipliers in Elastoplastic Torsion

Journal of Differential Equations, 1994
It has been shown that for a solution \(u \in K = \{u \in H^ 1_ 0(\Omega) : | Dv(x)| \leq 1\) a.e. in \(\Omega\}\) of the problem \(\min_{v \in K} \bigl\{ \int_ \Omega f(x,Dv) dx - \int_ \Omega gv dx\biggr \}\), where \(f(x,\cdot)\) is strictly convex for a.e. \(x \in \Omega\), \(\alpha | \xi|^ 2 \leq f(x,\xi) \leq A(1 + | \xi|^ 2)\) for a.e.
V. C. PIAT, PERCIVALE, DANILO
openaire   +2 more sources

The tomb on Monument Hill one mile south of LaGrange.

, 1933
A broadside explaining the tomb on monument hills importance in reference to the Texan Mier Expedition.'From The LaGrange Journal, June 15, 1933.'
LaGrange Journal
core  

Non Conforming Boundary Conditions in Finite Element and Particle Methods

, 2022
openNell'ambito della meccanica computazionale risulta di rilevante importanza l'imposizione delle condizioni al contorno. Spesso, nell'ambito di problemi ingegneristici legati a grandi deformazioni, la frontiera del corpo non coincide con quella della ...
COMERCI, NICOLA
core  

A partial envelope approach for modelling multivariate spatial‐temporal data

Canadian Journal of Statistics, EarlyView.
Abstract In the new era of big data, modelling multivariate spatial‐temporal data is a challenging task due to both the high dimensionality of the features and complex associations among the responses across different locations and time points.
Reisa Widjaja, Wenbo Wu, Victor De Oliveira, Keying Ye   +3 more
wiley   +1 more source

Homophily‐adjusted social influence estimation

Canadian Journal of Statistics, EarlyView.
Abstract Homophily and social influence are two key concepts of social network analysis. Distinguishing between these phenomena is difficult, and approaches to disambiguate the two have been primarily limited to longitudinal data analyses. In this study, we provide sufficient conditions for valid estimation of social influence through cross‐sectional ...
Hanh T.D. Pham, Daniel K. Sewell
wiley   +1 more source

The Lagrange Multiplier Method for Dirichlet's Problem [PDF]

Mathematics of Computation, 1981
The Lagrange multiplier method of Babuška for the approximate solution of Dirichlet’s problem for second order elliptic equations is reformulated. Based on this formulation, new estimates for the error in the solution and the boundary flux are given. Efficient methods for the solution of the approximate problem are discussed.
openaire   +1 more source

Front Propagation Through a Perforated Wall

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We consider a bistable reaction– diffusion equation ut=Δu+f(u)$u_t=\Delta u +f(u)$ on RN${\mathbb {R}}^N$ in the presence of an obstacle K$K$, which is a wall of infinite span with many holes. More precisely, K$K$ is a closed subset of RN${\mathbb {R}}^N$ with smooth boundary such that its projection onto the x1$x_1$‐axis is bounded and that ...
Henri Berestycki, François Hamel, Hiroshi Matano   +2 more
wiley   +1 more source

The Avriel-Ben-Tal algebraic operations approach for a short version proof of the Karush-Kuhn-Tucker optimality conditions

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
In this paper, by using (h, ϕ)-generalized directional derivative and (h, ϕ)-generalized gradient, the authors directly derives the Karush- Kuhn-Tucker conditions by applying a corollary of Farkas lemma under the Mangasarian-Fromovitz constraint ...
Cornaciu Veronica, Ioana Ileana
doaj   +1 more source

Penjadwalan Pembangkit Termal dengan Improved Lagrange Relaxation pada Sistem Jamali - 500 kV

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2018
Unit Commitment (UC) is a problem to schedule generating units in a power system economically meeting the requirements of load demand and spinning reserve. Up to now several methods have been applied to solve this problem.
inas sunaryanti ningsih, Hadi Suyono, Wijono Wijono   +2 more
doaj   +1 more source