Results 91 to 100 of about 136,878 (263)

Determining the Spectral Signature of Spatial Coherent Structures

, 2005
We applied to an open flow a proper orthogonal decomposition (pod) technique, on 2D snapshots of the instantaneous velocity field, to reveal the spatial coherent structures responsible of the self-sustained oscillations observed in the spectral ...
B. Podvin, F. Lusseyran, K. Karhunen, L. R. Pastur, M. Loève, P. Holmes, P. Huerre, W. K. Blake, Y. Fraigneau   +8 more
core   +2 more sources

Bio‐Nanocomposite Film Based on Pectin From Citrus sinensis Peel Reinforced With Montmorillonite With Improved Mechanical and Barrier Properties

Future Postharvest and Food, EarlyView.
(1) Pectin from Malta (Citrus sinensis) peel. (2) Montmorillonite with various levels. (3) Bio‐nanocomposite film with pectin and montmorillonite. (i) Mechanical. (ii) Structural Characterization (iii) Thermal. (iv) Morphological. (v) Barrier. ABSTRACT The casting method was used to develop bio‐nanocomposite film by combining pectin extracted from ...
Divya Arora, Charanjiv Singh Saini
wiley   +1 more source

Unsteady characteristics analysis of compressors based on the proper orthogonal decomposition method [PDF]

AIP Advances
An aero-engine is often accompanied by a strong unsteady flow at near-stall condition, and increasing unsteady airflow eventually makes the engine unstable. To explore the unsteady flow characteristics, the Rotor 37 was taken as the research object.
Shan Ma, Xiaolin Sun, Lin Cheng, Yang Yu, Wen Cheng   +4 more
doaj   +1 more source

Efficient multi-objective shape optimization using proper orthogonal decomposition with variable fidelity concept

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2020
A variable fidelity concept is introduced in a re-parameterization approach based on the proper orthogonal decomposition (POD) to efficiently solve multi-objective aerodynamic shape optimization problems.
Wataru YAMAZAKI
doaj   +1 more source

Guidelines for Sample Preparation and Stable Isotope Analysis of Food for Traceability Studies

Food Safety and Health, EarlyView.
This workflow illustrates sample preparation and analysis steps in stable isotope ratio mass spectrometer (IRMS) for food traceability. It emphasizes standardized preparation, encapsulation, calibration, and quality control to ensure accurate, comparable isotope data critical for verifying food origin and authenticity across complex supply chains ...
Bayan Nuralykyzy, Syed Abdul Wadood, Jing Nie, Hanyi Mei, Shengzhi Shao, Yongzhi Zhang, Chunlin Li, Yuwei Yuan, Karyne M. Rogers   +8 more
wiley   +1 more source

Bridging Classical and Quantum Approaches for Quantitative Sensing of Turbid Media with Polarization‐Entangled Photons

Laser &Photonics Reviews, EarlyView.
This work bridges classical and quantum polarimetry toward quantitative quantum photonic sensing of turbid environments. Theoretical and experimental investigations reveal how polarization‐entangled photonic states evolve in turbid media, uncovering robust trends in entanglement evolution and paving the way for advanced quantum sensing in biomedical ...
Vira R. Besaga, Ivan V. Lopushenko, Oleksii Sieryi, Alexander Bykov, Frank Setzpfandt, Igor Meglinski   +5 more
wiley   +1 more source

PIV data reconstruction via proper orthogonal decomposition with a cross validation approach

Journal of Fluid Science and Technology, 2014
In this research, unsteady particle image velocimetry (PIV) data are reconstructed / analyzed by a proper orthogonal decomposition (POD) with a cross validation approach.
Wataru YAMAZAKI, Rei AKIMOTO, Hidenori YAMADA   +2 more
doaj   +1 more source

MODEL REDUCTION METHODS IN OPTION PRICING [PDF]

In this work we introduce the Proper Orthogonal Decomposition (POD)approach to the valuation of contingent claims for one–dimensional price models.First, we present the POD in the context of an abstract Hilbert space and we givean application for the ...
Antonio Falcó, Francisco Chinesta, Mariano González   +2 more
core  

Reduced-Order Modeling based on Approximated Lax Pairs [PDF]

, 2012
A reduced-order model algorithm, based on approximations of Lax pairs, is proposed to solve nonlinear evolution partial differential equations. Contrary to other reduced-order methods, like Proper Orthogonal Decomposition, the space where the solution is
Gerbeau, Jean-Frédéric, Lombardi, Damiano   +1 more
core   +3 more sources

Application of machine learning to viscoplastic flow modeling

, 2018
We present a method to construct reduced-order models for duct flows of Bingham media. Our method is based on proper orthogonal decomposition (POD) to find a low-dimensional approximation to the velocity and artificial neural network to approximate the ...
Koroteev, D., Muravleva, E., Oseledets, I.   +2 more
core   +1 more source