Results 61 to 70 of about 14,736 (262)

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

open access: yesAdvanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair   +3 more
wiley   +1 more source

The Early Warning of Financial Failure for Iraqi Banks Based on Robust Adaptive Lasso Logistic Regression

open access: yesIraqi Journal for Computer Science and Mathematics
 It is well known that there are many mathematical financial failure models that have been proposed in the financial literature for specific stock markets.
Aqeel Jaafar Abbas Alshareefi   +1 more
doaj   +1 more source

Adaptive Heterogeneous Autoregressive Models of Realized Volatility Based on a Genetic Algorithm

open access: yesAbstract and Applied Analysis, 2014
The heterogeneous autoregressive (HAR) models of high-frequency realized volatility are inspired by the Heterogeneous Market Hypothesis and incorporate daily, weekly and monthly realized volatilities in the volatility dynamics with a (1,5,22) time ...
Hui Qu, Ping Ji
doaj   +1 more source

Adaptive Expectations and Stock Market Crashes [PDF]

open access: yesSSRN Electronic Journal, 2004
A theory is developed that explains how stocks can crash without fundamental news and why crashes are more common than frenzies. A crash occurs via the interaction of rational and naive investors. Naive traders believe that prices follow a random walk with serially correlated volatility.
openaire   +2 more sources

Lead Halide Perovskite Photoelectrocatalysis

open access: yesAdvanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Global Cross-Market Trading Optimization Using Iterative Combined Algorithm: A Multi-Asset Approach with Stocks and Cryptocurrencies

open access: yesMathematics
This study presents an advanced adaptive trading framework that integrates Deep Reinforcement Learning (DRL) with the Iterative Model Combining Algorithm (IMCA) to overcome the critical limitations of static ensemble methods in global portfolio ...
Kansuda Pankwaen   +2 more
doaj   +1 more source

Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review

open access: yesAdvanced Materials, EarlyView.
Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase   +6 more
wiley   +1 more source

Do Financial Markets Adapt Differently? A Cross-Country Examination Using the Adaptive Market Hypothesis [PDF]

open access: yesالمجلة العلمية للدراسات والبحوث المالية والتجارية
Purpose: This research aims to simultaneously examine different aspects of the Adaptive Market Hypothesis (AMH) in the global financial market context, a topic of significant interest and relevance.
Mohamed Hussein Abd El-Razeek
doaj   +1 more source

Progress on the Failure Mechanisms and Optimization Strategies on Lithium Iron Phosphate

open access: yesAdvanced Materials Interfaces, EarlyView.
This review centers on LiFeO4 cathodes, outlining their core advantages and performance limitations, then systematically elucidating failure mechanisms, proposing key optimization strategies, and summarizing future research directions that integrate advanced characterization with intelligent design.
Zheng‐Xin Qian   +8 more
wiley   +1 more source

Nonwoven‐Based Textile Architectures for Energy Storage Applications: Materials, Preparation, Characterization, and Prospects

open access: yesAdvanced Materials Interfaces, EarlyView.
Nonwoven textile architectures are emerging as versatile platforms for next‐generation energy storage, demonstrating how tailored materials and fabrication strategies enhance ion transport, conductivity, flexibility, and scalability for high‐performance sustainable devices.
Tarikul Islam   +6 more
wiley   +1 more source

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