Results 131 to 140 of about 197,057 (337)
Polymer Engineering &Science, EarlyView.Study on transient parison formation at various strokes during extrusion of Newtonian and viscoelastic fluids. In the presence of an offset between the mandrel and the bushing, Newtonian fluids exhibit a reduction in extrudate diameter, whereas viscoelastic fluids display diameter swelling only at flow rates exceeding a critical threshold.
Kalonji K. Kabanemi +2 more
wiley +1 more source
Noise Reduction in Nano‐Raman Spectroscopy Using Principal Component Analysis
physica status solidi (b), EarlyView.Comparison of the intensity map of the 1168 cm−1 peak obtained from tip‐enhanced Raman spectroscopy measurements, before and after principal component analysis (PCA). The raw data (left) shows significant noise, masking the structural features of the sample.
Jane Elisa Guimarães +8 more
wiley +1 more source
Eigenpairs of adjacency matrices of balanced signed graphs
Special MatricesIn this article, we study eigenvalues λ\lambda and their associated eigenvectors xx of the adjacency matrices AA of balanced signed graphs. Balanced signed graphs were first introduced and studied by Harary to handle a problem in social psychology ...
Chen Mei-Qin
doaj +1 more source
A Novel Neural Network Model for Extracting the Largest Sum of Real Part and Imaginary Part of Eigenvalues and the Corresponding Eigenvectors of a Real Matrix [PDF]
, 2016 Hang Tan +3 more
openalex +1 more source
Mapping Thermal Conductivity at the Atomic Scale: A Step toward the Thermal Design of Materials
physica status solidi (b), EarlyView.The site‐projected thermal conductivity method resolves the local thermal conduction contribution per atom by decomposing the Green–Kubo thermal conductivity tensor under the harmonic approximation. It highlights thermally active sites and “thermal defects” within disordered or amorphous materials, enabling spatially resolved insights into atomic‐scale
Chinonso Ugwumadu +3 more
wiley +1 more source
Global Persistence of the Unit Eigenvectors of Perturbed Eigenvalue Problems in Hilbert Spaces
, 2020 Pierluigi Benevieri +3 more
openalex +1 more source
Eigenvalues and eigenvectors of banded Toeplitz matrices and the related symbols
Numerical Linear Algebra with Applications, 2018 Sven-Erik Ekström, S. Serra-Capizzano
semanticscholar +1 more source
The benefits and challenges of using dense Mode‐S aircraft winds at ECMWF
Quarterly Journal of the Royal Meteorological Society, EarlyView.In November 2022 ECMWF stopped using Mode‐S winds because their very high density in central Europe caused problems for the assimilation system. The data were reintroduced operationally in November 2023 combined with an improved aircraft thinning algorithm.
Bruce Ingleby
wiley +1 more source
Ensemble Kalman filter in latent space using a variational autoencoder pair
Quarterly Journal of the Royal Meteorological Society, EarlyView.The use of the ensemble Kalman filter (EnKF) in strongly nonlinear or constrained atmospheric, oceanographic, or sea‐ice models can be challenging. Applying the EnKF in the latent space of a variational autoencoder (VAE) ensures that the ensemble members satisfy the balances and constraints present in the model.
Ivo Pasmans +4 more
wiley +1 more source