Results 211 to 220 of about 103,432 (283)

Optimal model‐based design of experiments for parameter precision: Supercritical extraction case

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the process of chamomile oil extraction from flowers. A parameter‐distributed model consisting of a set of partial differential equations is used to describe the governing mass transfer phenomena in a cylindrical packed bed with solid chamomile particles under supercritical conditions using carbon dioxide as a solvent ...
Oliwer Sliczniuk, Pekka Oinas
wiley   +1 more source

A novel 1D powered Chebyshev quadratic map-based image encryption using dynamic permutation-diffusion. [PDF]

Sci Rep
Sarra B, Sun H, Dua M, Dua S, Dhingra D.
europepmc   +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

Integrated geographical and ecological analysis reveals environmental drivers of Gardenia jasminoides distribution and chemical variation. [PDF]

Sci Rep
Zhang M, Zhou C, Huang S, Wang H, Shi T, Li M, Jing Z, Zhang X.   +7 more
europepmc   +1 more source

Restricted Tweedie stochastic block models

Canadian Journal of Statistics, EarlyView.
Abstract The stochastic block model (SBM) is a widely used framework for community detection in networks, where the network structure is typically represented by an adjacency matrix. However, conventional SBMs are not directly applicable to an adjacency matrix that consists of nonnegative zero‐inflated continuous edge weights.
Jie Jian, Mu Zhu, Peijun Sang
wiley   +1 more source

Aggregated postpartum cerebral autoregulatory curves in normotensive individuals, preeclampsia with severe features, and superimposed preeclampsia with severe features. [PDF]

Physiol Meas
Woolcock H, Katsidoniotaki M, Taliadouros Meng L, Haghighi N, van Wingerden AS, Alian A, Booker WA, Bello NA, Marshall RS, Kougioumtzoglou IA, Petersen NH, Miller EC.   +11 more
europepmc   +1 more source

Groups of permutation polynomials

Monatshefte f�r Mathematik, 1967
openaire   +2 more sources

Asymptotic properties of cross‐classified sampling designs

Canadian Journal of Statistics, EarlyView.
Abstract We investigate the family of cross‐classified sampling designs across an arbitrary number of dimensions. We introduce a variance decomposition that enables the derivation of general asymptotic properties for these designs and the development of straightforward and asymptotically unbiased variance estimators.
Jean Rubin, Guillaume Chauvet
wiley   +1 more source

Rapid discrimination of geographical origin and analysis of chemical characterization of tobacco leaves from multiple countries. [PDF]

Front Chem
Kou R, Wang C, Wan R, Su M, Xu H, Fu Y, Lin Y, Song X, Bi Y, Zhao L, Guo J, Wang H, Liu Z, Yang S, Nie C.   +14 more
europepmc   +1 more source

Self‐Similar Blowup for the Cubic Schrödinger Equation

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We give a rigorous proof for the existence of a finite‐energy, self‐similar solution to the focusing cubic Schrödinger equation in three spatial dimensions. The proof is computer‐assisted and relies on a fixed point argument that shows the existence of a solution in the vicinity of a numerically constructed approximation.
Roland Donninger, Birgit Schörkhuber
wiley   +1 more source