Results 71 to 80 of about 5,625,691 (189)

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

open access: yesAdvanced Functional Materials, Volume 36, Issue 74, 14 September 2026.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou   +6 more
wiley   +1 more source

A Comparative Study of Principal Component Analysis (PCA) and Dynamic Mode Decomposition (DMD) Variants [PDF]

open access: yes
Thesis (Master's)--University of Washington, 2024This study evaluates the performance of the Exact Dynamic Mode Decomposition (DMD), Optimized DMD, and Modified Optimized DMD algorithms under various noise conditions, with a specific focus on ...
He, Yile
core  

Catalytically Enhanced Near Room‐Temperature Hydrogen Sensing Using Pd‐ZnO Colloidal Crystals

open access: yesAdvanced Functional Materials, Volume 36, Issue 73, 10 September 2026.
Pd‐decorated ZnO colloidal crystal monolayers demonstrate excellent performance across a wide hydrogen concentration range at 33°C, with high selectivity and reproducible device fabrication. The sensors show strong responses even at low‐ppm H2 concentrations and an ultra‐low detection limit of 82 ppb, indicating their suitability for diverse hydrogen ...
Hamidah Alluhaybi   +13 more
wiley   +1 more source

A Developed VMD-DMD Algorithm with Machine Learning Models for Improving Sea Level Predictions: A Case Study of the Mediterranean Coastlines

open access: yesJournal of Marine Science and Engineering
Accurate prediction of sea level change in the Mediterranean Sea is essential for coastal risk management; however, the nonstationary behavior of sea level makes this difficult.
Mohamed M. Youssef   +3 more
doaj   +1 more source

Mechanical stability in flexible perovskite solar cells: Interface engineering and device design

open access: yesFlexMat, Volume 3, Issue 3, Page 502-539, September 2026.
Statistics of the improvement methods for f‐PSCs. Abstract Flexible perovskite solar cells (f‐PSCs) demonstrate significant potential for application in next‐generation wearable electronic devices and photovoltaic building integration due to their high power conversion efficiency and excellent power‐to‐weight ratio. However, the inherent brittleness of
Hong‐Yi Hou   +3 more
wiley   +1 more source

Optimized dynamic mode decomposition for reconstruction and forecasting of atmospheric chemistry data [PDF]

open access: yesGeoscientific Model Development
We introduce the optimized dynamic mode decomposition (DMD) algorithm for constructing an adaptive and computationally efficient reduced-order model and forecasting tool for global atmospheric chemistry dynamics.
M. Velagar   +3 more
doaj   +1 more source

VQ‐Wave: A Physics‐Driven Spatiotemporal Deep Learning Approach for Noncontrast‐Enhanced Lung Ventilation and Perfusion MRI

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 3, Page 1427-1442, September 2026.
ABSTRACT Purpose To develop a robust deep learning framework for noncontrast‐enhanced functional lung MRI, overcoming the limitations of spectral decomposition in the presence of physiological nonstationarity. Methods We introduce VQ‐Wave (Ventilation/Q‐perfusion Waveform‐based Assessment of Variable Evolutions), a physics‐driven spatiotemporal ...
Grzegorz Bauman   +3 more
wiley   +1 more source

Analysis of Sooting Turbulent Flames with Dynamic Mode Decomposition

open access: yes, 2015
This thesis is an investigation of the application of the control theory algorithm known as Dynamic Mode Decomposition (DMD) to computational combustion models.
Jones, Silken Michelle
core  

Research on the Flow-Induced Vibration of Cylindrical Structures Using Lagrangian-Based Dynamic Mode Decomposition

open access: yesJournal of Marine Science and Engineering
An oscillating flow past a structure represents a complex, high-dimensional, and nonlinear flow phenomenon, which can lead to the failure of structures due to material fatigue or constraint relaxation. In order to better understand flow-induced vibration
Xueji Shi   +5 more
doaj   +1 more source

A Splitting Approach to Dynamic Mode Decomposition of Nonlinear Systems [PDF]

open access: yes, 2023
Reduced-order models have long been used to understand the behavior of nonlinear partial differential equations (PDEs). Naturally, reduced-order modeling techniques come at the price of computational accuracy for a decrease in computation time ...
Žigić, Jovan
core   +1 more source

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