Results 71 to 80 of about 2,222 (257)

Particular Solutions of Chebyshev Polynomials for Polyharmonic and Poly-Helmholtz Equations [PDF]

open access: yes, 2008
In this paper we develop analytical particular solutions for the polyharmonic and the products of Helmholtz-type partial differential operators with Chebyshev polynomials at right-hand side.
Chia-Cheng Tsai
core   +1 more source

Development of a population pharmacokinetic model using combined paediatric and adult data for four pulmonary arterial hypertension drugs

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aims Pulmonary arterial hypertension (PAH) is a syndrome characterized by elevated pulmonary artery pressure. We developed a population pharmacokinetic (PPK) model using combined plasma drug concentration data from Japanese paediatric (<15 years) and adult (≥15 years) patients with PAH to investigate the pharmacokinetic characteristics of PAH ...
Motoyasu Miura   +13 more
wiley   +1 more source

Effects of soret and dufour on unsteady MHD free-convective transport of micropolar fluid past a porous plate with heat generation

open access: yesInternational Journal of Thermofluids
The effects of heat generation on an unsteady MHD free-convective heat and mass transport micropolar fluid flow along a vertical perforated sheet have been investigated, with the Soret and Dufour effects included in this analysis.
Md.Abul Kalam Azad   +5 more
doaj   +1 more source

Lie Group Symmetries as Integral Transforms of Fundamental Solutions [PDF]

open access: yes
We obtain fundamental solutions for PDEs of the form ut = x uxx +f(x)ux ??xru by showing that if the symmetry group of the PDE is nontrivial, it contains a standard integral transform of the fundamental solution. We show that in this case, the problem of
Mark Craddock, Kelly A Lennox
core  

A fundamental solution for a subelliptic operator in finsler geometry [PDF]

open access: yes
We introduce a class of nonlinear partial differential equations in a product space which are at the interface of Finsler and sub-Riemannian geometry.
Giovannardi, G.   +3 more
core   +1 more source

Optimization of 3D‐Printed Structured Packings—Current State and Future Developments

open access: yesChemie Ingenieur Technik, EarlyView.
This paper gives an overview about structured packing development for distillation, surveying heuristic development cycles, computational fluid dynamics simulations, and additive manufacturing techniques. The emerging application of shape optimization to improve packings is emphasized, and its benefits, impact, and limitations are discussed.
Dennis Stucke   +3 more
wiley   +1 more source

Lie Symmetry Methods for Multidimensional Linear, Parabolic PDES and Diffusions [PDF]

open access: yes
In this paper we introduce methods based upon Lie symmetry analysis for the construction of explicit fundamental solutions of multidimensional parabolic PDEs.
Mark Craddock, Kelly A. Lennox
core  

An Analytical Design Model of a Vacuum Pressure Swing Adsorption Process for Biogas Upgrading

open access: yesChemie Ingenieur Technik, EarlyView.
A steady‐state model was developed for a vacuum pressure swing adsorption (VPSA) process comprising adsorption, depressurization, and evacuation steps. The resulting analytical plant design model provides the optimal adsorber height required to achieve a target product purity with maximum bed utilization.
Thomas Welter   +3 more
wiley   +1 more source

Extended batch adsorber analogue model (e‐BAAM) for rapid evaluation of CO2 capture pressure swing adsorption cycles

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This work presents a simplified extended‐batch adsorber analogue model (e‐BAAM) to quantify key performance metrics such as purity, recovery, and energy trends for various pressure swing adsorption (PSA) process cycles for CO2$$ {\mathrm{CO}}_2 $$ capture.
Gwyneth Liske, Arvind Rajendran
wiley   +1 more source

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