Results 221 to 230 of about 6,324,147 (316)

Nonlinear permuted Granger causality

Canadian Journal of Statistics, EarlyView.
Abstract Granger causality is an established, contentious method that seeks causal temporal connections via association and precedence. While not true causal inference, it assists in mapping networks of information flow that may warrant further study.
Noah D. Gade, Jordan Rodu
wiley   +1 more source

Design and experimental validation of a smart alkaline electrolyzer-based green hydrogen generation and storage pilot system. [PDF]

Sci Rep
El Zoghby HM, Elmesalawy MM, Shindi I.
europepmc   +1 more source

An Ultra‐Low‐Power Biopotential Acquisition Analog Front‐End Chip for Wearable Devices

International Journal of Circuit Theory and Applications, EarlyView.
A 0.8‐V, 1.2‐μW biopotential AFE combines a chopper‐stabilized CCIA with dual‐time‐scale EDO management. The slow DSL preserves > 1 GΩ input impedance, whereas an event‐triggered fast‐recovery path shortens return to the linear range after abrupt electrode‐offset disturbances. ABSTRACT A 0.8‐V, 1.2‐μW biopotential analog front‐end (AFE) IC is presented
Zhang Xin, Yang Tianqi, Xu Wei, Wang Shun, Xiaoxi Ma   +4 more
wiley   +1 more source

Imaging Spatially Varying Dielectric Samples Using Tightly Coupled Dipole Array Based Near-Field Sensing. [PDF]

Sensors (Basel)
Almoneef TS.
europepmc   +1 more source

A Code‐Invariant QSG–VGA Co‐Design Methodology for Compact CMOS Vector‐Sum Phase Shifters

International Journal of Circuit Theory and Applications, EarlyView.
A circuit‐level co‐design methodology for compact vector‐sum phase shifters is presented, combining a code‐invariant common‐gate variable‐gain amplifier (VGA) with a resistorless quadrature signal generator (QSG). By maintaining an almost constant input resistance, explicit resistors are eliminated from the QSG.
Uxua Esteban Eraso, Carlos Sánchez‐Azqueta, Francisco Aznar, Concepción Aldea, Santiago Celma   +4 more
wiley   +1 more source

The Failure of Voltage Divider Induced by Insulating Material Degradation Under Coupling Effect of High-Frequency Field and Temperature. [PDF]

Materials (Basel)
Li X, Zhang C, Liu Z, Song J, Tian H, Xie Q, Zhang Z, Li S.   +7 more
europepmc   +1 more source

New‐Generation Integrated Devices: Multiple‐Energy Utilization and Integration Systems Based on Perovskite Photovoltaics

EcoEnergy, EarlyView.
This review highlights emerging integrated energy systems based on perovskite photovoltaics, including PSC–thermoelectric, photovoltaic–electrochemical, self‐charging, and building‐integrated architectures. By coupling multiple energy conversion and storage pathways, these multifunctional platforms enable enhanced solar utilization, improved stability,
Yihuai Huang, Wenguang Zhang, Yuchen Xiong, Zijun Yi, Changkai Huang, Qinghui Jiang, Abdul Basit, Guibin Shen, Yubo Luo, Xin Li, Junyou Yang   +10 more
wiley   +1 more source

Correlated insulator Moiré bolometer. [PDF]

Nat Commun
Elesin L, Shilov AL, Kravtsov M, Zhou X, Lukianov M, Kuksov A, Jana S, Iorsh I, Izmaylov R, Shein K, Gayduchenko I, Taniguchi T, Watanabe K, Novoselov KS, Goltsman GN, Principi A, Bandurin DA.   +16 more
europepmc   +1 more source

Design and Operation of Photovoltaic‐Driven Electrocatalytic Water Splitting for Hydrogen Production

EcoEnergy, EarlyView.
Photovoltaic‐driven electrocatalytic water splitting offers a scalable route to green hydrogen. This review introduces fundamental photovoltaic principles and key PV performance metrics, compares different PV–EC configurations, and provides practical guidance on design, operation, and PV–EC matching. Key bottlenecks and future directions for efficiency
Zhenlan Dou, Ying Zhang, Chunyan Zhang, Jieshi Shen, Miaoqiu Hu, Haifei Wang, Lei Guo   +6 more
wiley   +1 more source

Advanced predictive direct power control for grid-connected WECS-PMSG: comprehensive simulation and real-time validation under stochastic wind conditions. [PDF]

Sci Rep
Majout B, Saady I, Karim M, Hussien SA, Mosaad MI, Bossoufi B.   +5 more
europepmc   +1 more source