Results 141 to 150 of about 229,398 (238)

Catalan Bounds for Symmetric Strength‐Two Orthogonal Arrays

open access: yesJournal of Combinatorial Designs, EarlyView.
ABSTRACT A Hamming shell construction is a two‐level array obtained by taking every binary vector of a given Hamming weight a prescribed number of times, for each weight in turn. Such arrays are invariant under all permutations of the factors, and they are strength‐two orthogonal arrays exactly when the multiplicities satisfy three linear constraints ...
Ruwan C. Karunanayaka
wiley   +1 more source

Updating the Incomplete MOLS Table for v $v$ up to 100

open access: yesJournal of Combinatorial Designs, EarlyView.
ABSTRACT Incomplete transversal designs have wide application in the construction of other designs such as transversal designs, block designs, frames, statistical designs, and Latin rectangles. Other areas where they are used include telecommunications and network codes, obtaining physically unclonable functions, frequency hopping sequences and ...
R. Julian R. Abel   +2 more
wiley   +1 more source

Iron‐modified natural sand as a heterogeneous Fenton catalyst for methylene blue and textile wastewater treatment

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The continuous discharge of organic dyes into freshwater poses long‐term environmental risks. Heterogeneous Fenton‐like processes using iron (Fe)‐modified silica (SiO2) supports are promising for dye removal; however, catalysts derived from natural sand and operating under near‐neutral conditions remain relatively underexplored ...
Hajer Aloulou   +6 more
wiley   +1 more source

A Structural Description of Zykov and Blanche Descartes Graphs

open access: yesJournal of Graph Theory, EarlyView.
ABSTRACT Around 1950, Zykov and Blanche Descartes proposed the two first explicit constructions of triangle‐free graphs with arbitrarily large chromatic number. We define a Zykov (resp. Blanche Descartes) graph as any induced subgraph of a graph created using Zykov's construction (resp. Blanche Descartes's).
Malory Marin   +3 more
wiley   +1 more source

Raman Spectroscopy and Generative Variational Autoencoders for Metallurgical Coke Quality Prediction

open access: yesJournal of Raman Spectroscopy, EarlyView.
An integrated soft sensor framework combining standardized Raman spectroscopy, synergy‐vector feature selection, variational autoencoder‐based data augmentation, and regression models (kNN, PLS, and SVR) predicts metallurgical coke quality (CSR and DI).
Pedro Henrique Agrimpio Coutinho   +2 more
wiley   +1 more source

Balancing Prediction Performance and Spectral Interpretability: Multimetric Guided Design of Raman Spectrum Preprocessing Pipelines to Transfer Single Compound Models to Bioprocess Data

open access: yesJournal of Raman Spectroscopy, EarlyView.
Calibration models were trained using single‐compound Raman spectra of ethanol and glucose, and then transferred to bioprocess spectra. Preprocessing, optimized to meet a multimetric quality framework, enabled this transfer whilst preserving the characteristic bands and the chemical interpretability of the models.
Gianmarco Luchetti Sfondalmondo   +1 more
wiley   +1 more source

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