Results 141 to 150 of about 89,813 (307)

Near-best fixed pole rational interpolation with applications in spectral methods [PDF]

, 2008
: We present a numerical procedure to compute the nodes and weights in rational Gauss-Chebyshev quadrature formulas. Under certain conditions on the poles, these nodes are near best for rational interpolation with prescribed poles (in the same sense that
Bultheel, Adhemar, Deckers, Karl, Van Deun, Joris, Weideman, J.A.C.   +3 more
core  

Electronic Moment Tensor Potentials include both electronic and vibrational degrees of freedom

npj Computational Materials
We present the electronic moment tensor potentials (eMTPs), a class of machine-learning interatomic models and a generalization of the classical MTPs, reproducing both the electronic and vibrational degrees of freedom, up to the accuracy of ab initio ...
Prashanth Srinivasan, David Demuriya, Blazej Grabowski, Alexander Shapeev   +3 more
doaj   +1 more source

Smooth orientation interpolation using parametric quintic-polynomial-based quaternion spline curve

Journal of Computational and Applied Mathematics, 2018
Jieqing Tan, Yan Xing, Wen Fan, Peilin Hong   +3 more
semanticscholar   +1 more source

Carbon monoxide adsorption on NaY zeolite and impregnated with 5% niobium: Characteristics and fixed‐bed study

The Canadian Journal of Chemical Engineering, EarlyView.
Schematic of the CO adsorption process in a fixed‐bed column containing pure NaY zeolite and Nb‐modified NaY (NaY–5%Nb). On the left, breakthrough curves and temperature profiles highlight the dynamic performance and thermal effects during CO adsorption.
Elson Oliveira, Karina Querne de Carvalho, Erika Pereira Felix, Roberta C. P. Rizzo‐Domingues   +3 more
wiley   +1 more source

Predictive modeling of Cbr and compressibility in lime stabilized lateritic soil using machine learning and Pchip data augmentation

Discover Civil Engineering
This study investigated the compressibility and strength enhancement of A-2-6(0) lateritic soil, common in tropical regions, using quicklime stabilization.
Hyginus Obinna Ozioko, Emmanuel Ebube Eze   +1 more
doaj   +1 more source

Box–Behnken optimization and ANN‐ANFIS integrated modelling for transesterification using thermally activated basic oxygen furnace slag catalyst

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Global energy demand and environmental concerns have intensified the search for renewable and sustainable energy sources. This study thus, focuses on optimizing the transesterification process of waste cooking oil (WCO) using thermally activated basic oxygen furnace slag catalyst calcined at 850°C (BOF 850). The optimization and modelling were
Johra S. Ali, Hillary L. Rutto
wiley   +1 more source

J. Algebra 225 (2000) 794–803 INTERPOLATION DOMAINS [PDF]

, 2008
. Call a domain D with quotient field K an interpolation domain if, for each choice of distinct arguments a1,..., an and arbitrary values c1,..., cn in D, there exists an integer-valued polynomial f (that is, f ∈ K[X] with f(D) ⊆ (D)), such that f(ai) =
Paul-jean Cahen, Jean-luc Chabert, Sophie Frisch   +2 more
core  

Application of artificial neural network and general machine learning modelling on CO2 adsorption in moisture equilibrated South African high and medium rank coals

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the effect of moisture on CO2 adsorption in South African coals using both experimental and machine learning approaches. Three coal samples (SL, TN, and EM) with varying ranks (RoVmr: 3.49%, 1.26%, and 0.64%, respectively) were collected from different regions of South Africa.
Kasturie Premlall, Lawrence Koech, Douw Faurie, Khanyisile Lepota   +3 more
wiley   +1 more source

A study on the dynamics of a nutrient-plankton-fish interaction model with Caputo fractional operator

Fixed Point Theory and Algorithms for Sciences and Engineering
The current study aims to fill a knowledge gap in the dynamics and regulation of algal blooms through fish predation, while accounting for the memory effect. A nutrient-phytoplankton-zooplankton-fish model using fractional derivatives in the Caputo sense
Kaushik Dehingia, Muhammad Farman, Suresh Babu Baluguri, Kamyar Hosseini, Manal Ghannam, Santosh Kumar Choudhary   +5 more
doaj   +1 more source

Stochastic Gradient Descent in High Dimensions for Multi‐Spiked Tensor PCA

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We study the high‐dimensional dynamics of online stochastic gradient descent (SGD) for the multi‐spiked tensor model. This multi‐index model arises from the tensor principal component analysis (PCA) problem with multiple spikes, where the goal is to estimate the unknown signal vectors within the N$N$‐dimensional unit sphere through maximum ...
Gérard Ben Arous, Cédric Gerbelot, Vanessa Piccolo   +2 more
wiley   +1 more source