Results 81 to 90 of about 83,553 (194)

Thin shell implies spectral gap up to polylog via a stochastic localization scheme

, 2012
We consider the isoperimetric inequality on the class of high-dimensional isotropic convex bodies. We establish quantitative connections between two well-known open problems related to this inequality, namely, the thin shell conjecture, and the ...
B. Fleury, B. Klartag, B. Klartag, O. Guedon, Ronen Eldan, T. Tam   +5 more
core   +1 more source

Hybrid Hydrodynamic‐Machine Learning Modelling for Rapid Flood Scenario Assessment: A Case Study in Aotearoa New Zealand

Journal of Flood Risk Management, Volume 19, Issue 2, June 2026.
ABSTRACT Flooding is one of the most devastating natural disasters worldwide. It is also expected to become more severe as climate change impacts are realised. Two‐dimensional (2D) hydrodynamic models are used to obtain reliable inundation estimations.
Andrea Pozo, Matthew Wilson, Marwan Katurji, Fernando J. Méndez, Cyprien Bosserelle, Emily Lane   +5 more
wiley   +1 more source

An optimal factor analysis approach to improve the wavelet-based image resolution enhancement techniques [PDF]

, 2016
The existing wavelet-based image resolution enhancement techniques have many assumptions, such as limitation of the way to generate low-resolution images and the selection of wavelet functions, which limits their applications in different fields.
Jenkins, Karl W., Witwit, Wasnaa, Zhao, Yifan, Zhao, Yitian   +3 more
core  

Prognostics and Health Management in Polymer Electrolyte Fuel Cells: Current Trends, Challenges, and Future Directions

Fuel Cells, Volume 26, Issue 2, April 2026.
ABSTRACT Prognostics and health management are crucial for the reliability and lifetime assessment of polymer electrolyte fuel cells (PEFCs). Here, we review the current advances on this topic, focusing mainly on key degradation mechanisms and methodologies such as physics‐aware, data‐driven, and hybrid modeling approaches.
Farideh Abdollahi, Kourosh Malek, Thomas Kadyk, Nadiia Kulyk, Christophe Gerling, Michael H. Eikerling   +5 more
wiley   +1 more source

Efficient Kilometer‐Scale Precipitation Downscaling With Conditional Wavelet Diffusion

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract Precipitation products such as Integrated Multi‐satellitE Retrievals have coarse resolution (∼10 ${\sim} 10$ km), which limits their application in hydrological modeling and extreme weather analysis. We propose the Wavelet Diffusion Model (WDM), a fast generative framework for high‐quality precipitation downscaling trained on multi‐radar multi‐
Chugang Yi, Minghan Yu, Weikang Qian, Yixin Wen, Haizhao Yang   +4 more
wiley   +1 more source

Handwritten Arabic character recognition: which feature extraction method? [PDF]

, 2011
Recognition of Arabic handwriting characters is a difficult task due to similar appearance of some different characters. However, the selection of the method for feature extraction remains the most important step for achieving high recognition accuracy ...
Angelova, Maia, Bouridane, Ahmed, Ghassemlooy, Zabih, Lawgali, Ahmed   +3 more
core  

Wireless and Soft Pulse Wave Measurement Device with Printed Ferroelectric E‐tattoo Sensor

Advanced Sensor Research, Volume 5, Issue 3, March 2026.
ABSTRACT We propose a non‐invasive pulse wave monitoring system that integrates a fully printed, partially stretchable ferroelectric electronic tattoo (e‐tattoo) sensor with a soft, elastomer‐encapsulated, partially stretchable data transmission unit (DTU).
Karem Lozano Montero, Yayun Du, Ninja Kajas, Jacob Trueb, Mikko Peltokangas, Hany Arafa, Jin‐Tae Kim, Jianyu Gu, Remmi Calvo Guzman, Niku Oksala, Jiantong Li, Antti Vehkaoja, John A. Rogers, Matti Mäntysalo, Mika‐Matti Laurila   +14 more
wiley   +1 more source

Combining Haar Wavelet and Karhunen-Loeve Transform for Robust and Imperceptible Data Hiding Using Digital Images

Journal of Intelligent Systems, 2018
In this paper, we present an introduction of digital image watermarking followed by important characteristics and potential applications of digital watermarks.
Sharma Akankasha, Singh Amit Kumar, Kumar Pardeep   +2 more
doaj   +1 more source

Impact of Noise on Fault Classification in High-Voltage Transmission Lines Using LVQ Neural Networks

Emitor: Jurnal Teknik Elektro
Accurate fault detection and classification in high-voltage transmission lines are essential to ensure system reliability and operational safety. However, the presence of noise and transient disturbances often degrades the accuracy of conventional ...
Marta Hardiyanti Mursat, Novizon Novizon, Hana Sulthanah   +2 more
doaj   +1 more source

The Application of Discrete Wavelet Transform with Improved Partial Least-Squares Method for the Estimation of Soil Properties with Visible and Near-Infrared Spectral Data

Remote Sensing, 2018
This study evaluated whether wavelet functions (Bior1.3, Bior2.4, Db4, Db8, Haar, Sym4, and Sym8) and decomposition levels (Levels 3–8) can estimate soil properties. The analysis is based on the discrete wavelet transform with partial least-squares
Guoqiang Wang, Wei Wang, Qingqing Fang, Hong Jiang, Qinchuan Xin, Baolin Xue   +5 more
doaj   +1 more source