Results 91 to 100 of about 537,485 (280)

Numerical Solutions via Shifted Pell Polynomials for Third-Order Rosenau–Hyman and Gilson–Pickering Equations

open access: yesMathematics
This paper introduces a collocation algorithm for numerically solving the third-order Gilson–Pickering equation (GPE) and the classical Rosenau–Hyman equation (RHE). We employ newly developed shifted Pell polynomials as basis functions.
Mohamed A. Abdelkawy   +4 more
doaj   +1 more source

Sustainability and Value Transitions: The Strategic Role of Cross‐Sectoral Interconnectedness and Transition Brokers

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Climate economics is undergoing rapid transformation, reconfiguring the foundations of sustainability transitions. This study develops a systems‐based perspective that foregrounds the strategic role of cross‐sectoral interconnectedness and transition brokers in shaping these transitions.
Ionna Trofimova‐Elliot
wiley   +1 more source

The Newton integral and the Stirling formula

open access: yes, 2019
We present details of logically simplest integral sufficient for deducing the Stirling asymptotic formula for n!. It is the Newton integral, defined as the difference of values of any primitive at the endpoints of the integration interval. We review in its framework in detail two derivations of the Stirling formula. The first approximates log(1)+log(2)+
openaire   +2 more sources

Automated Process Optimization in a Novel Triple Shaft Mixer with Adaptive Mixing Modes

open access: yesChemie Ingenieur Technik, EarlyView.
A novel multi‐purpose mixer with adjustable blade angle and a coaxial stirrer is developed, providing three degrees of freedom. An optimization strategy is integrated to autonomously identify optimal operating conditions through automated tests. The current draw of the main stirrer serves as the optimization criterion, while stirrer speeds, directions,
B. Schwarz, H. Kniele, J. A. Lindner
wiley   +1 more source

Analysis of Convergence and Stability Properties of Diagonally Implicit 3-Point Block Backward Differentiation Formula for First Order Stiff Initial Value Problems

open access: yesUMYU Scientifica Journal
This paper presents a comprehensive analysis of the diagonally implicit 3-point block backward differentiation formula (BDF) for solving first-order stiff initial value problems.
Buhari Alhassan   +2 more
doaj   +1 more source

[Formula SENA. Cortinilla]

open access: yes, 2010
Cortinilla del evento Formula SENA utilizada para separar los el programa de la pauta comercial.Curtain of the Formula SENA event used to separate the program from the commercial ...

core  

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

open access: yesThe 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   +2 more
wiley   +1 more source

Finite-Dimension Thermodynamics for Optimizing Power Plants Including Heat-Storage Device

open access: yesEnergies
This paper deals with the optimal integration of power plants, including a storage device. For such systems, numerous structures are possible, involving different numbers of heat exchangers, and for each of them, optimal operating temperatures need to be
Pierre Neveu   +2 more
doaj   +1 more source

Preventing wall deposition in duct flows: The role of particle number density and flow direction

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Particle deposition in wall‐bounded turbulent flows is a challenge in many industries, including pneumatic conveying, filtration, and related applications. When particles accumulate near boundaries, they reduce transport efficiency, alter near‐wall flow structures, and cause blockage.
Gizem Ozler, Holger Grosshans
wiley   +1 more source

A perspective on parsimonious hybrid models for online use: Augmenting fundamental models with ARIMA disturbances

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Hybrid models (HMs) combine fundamental model (FM) equations with empirical components. These models can lead to improved predictions because they reduce process/model mismatch and can account for phenomena that are not considered in the FM equations.
Mouna Y. Harb, Kimberley B. McAuley
wiley   +1 more source

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