Results 111 to 120 of about 27,846 (240)

Design of Dual-band Branch-Line Coupler Based on Shunt Open-Circuit DCRLH Cells [PDF]

open access: yes, 2013
In this article, the shunt open-circuit dual composite right/left-handed (DCRLH) cell is initially proposed and one dual-band branch-line coupler based on the proposed cells is designed.
Bo Tian, Guang-Ming Wang, Ke Lu
core  

Integrated Bulk–Surface Engineering Stabilizes MA‐Free Wide‐Bandgap Perovskites for Tandem Photovoltaics

open access: yesAdvanced Science, Volume 13, Issue 16, 18 March 2026.
High‐bromide wide‐bandgap perovskites suffer from defects and phase segregation, limiting tandem performance. We report a bulk–surface coupling effect to heal lattice/surface defects and suppress halide migration. As a result, the wide‐bandgap device achieves 23.71% efficiency, while monolithic Si‐based tandems reach 32.26%, exhibiting exceptional long‐
Yu Tong   +8 more
wiley   +1 more source

Insight‐Guided Optimization of the Individual Steps in Ambient Slot‐Die‐Coated Perovskite Solar Cells

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
This graphical abstract presents an integrated workflow for optimizing perovskite thin film fabrication by tuning ink rheology, refining processing parameters, and controlling crystallization. Viscosity control and process optimization precisely regulate wet film thickness and drying time, while crystallization directed by solvent additives yields ...
Alejandra Flórez   +8 more
wiley   +1 more source

Estimation of abnormal states in shunt capacitor banks using transient disturbance feature extraction

open access: yesFrontiers in Energy Research
Shunt capacitor banks are essential for reactive power compensation, ensuring voltage stability, and reducing system losses. These banks consist of multiple units with components in series and parallel.
Long Zhang   +6 more
doaj   +1 more source

Induction powered biological radiosonde [PDF]

open access: yes, 1980
An induction powered implanted monitor for epidurally measuring intracranial pressure and telemetering the pressure information to a remote readout is disclosed.
Fryer, T. B.
core   +1 more source

Wearable Metamaterials with Embodied Intelligence for Programmable Control of Human Limbs Tremor

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Resulting from alternating muscle contractions, tremors can severely limit human ability to perform everyday tasks like walking or talking, due to their disruptive nature. Medication and surgery may not always effectively address tremor control. A wearable device embodying programmable smart metamaterials with adaptable intelligence to meet the demand ...
Braion Barbosa de Moura   +2 more
wiley   +1 more source

Overview of three-phase inverter topologies for distributed generation purposes [PDF]

open access: yes, 2010
The increasing presence of single-phase distributed generators and unbalanced loads in the electric power system may lead to unbalance of the three phase voltages, resulting in increased losses and heating.
De Kooning, Jeroen   +5 more
core   +1 more source

Ultra‐High Spin Hall Angle in Sputtered Sb2Te3 Topological Insulators via Pt Interfacial Engineering

open access: yesAdvanced Physics Research, Volume 5, Issue 3, March 2026.
Topological insulator Sb2Te3 demonstrates exceptional charge‐to‐spin conversion efficiency and thermal stability up to 400°C, showing great promise for spin–orbit torque memory applications. This study achieves high‐quality Sb2Te3 films on silicon substrates through optimized sputtering and introduces an ultrathin Pt interlayer to suppress interfacial ...
Qi Zhang   +9 more
wiley   +1 more source

Symmetry Control of Mutually Thermoelectric Conversion in Rutile RuO2

open access: yesAdvanced Physics Research, Volume 5, Issue 3, March 2026.
We demonstrate that crystal symmetry can efficiently modulate mutual thermoelectric conversion. Longitudinal electric‐to‐heat conversion via the anisotropic crystal Peltier effect is observed in a RuO2 single layer without forming P–N junctions, and its dependence on crystal orientation is revealed by lock‐in thermography. Reciprocally, the anisotropic
Hua Bai   +9 more
wiley   +1 more source

High‐Fidelity Simulation‐Driven Control Framework for Robust Grid Integration of Renewable Energy Systems

open access: yesEnergy Science &Engineering, Volume 14, Issue 3, Page 1286-1299, March 2026.
This work proposes a high‐fidelity, simulation‐driven control framework for robust grid integration of hybrid PV–wind systems using a modular, hierarchical multi‐loop architecture with adaptive decision logic. The framework coordinates power, DC‐link voltage, and grid currents under fast load and generation changes, enabling safe exploration of extreme
Wulfran Fendzi Mbasso   +5 more
wiley   +1 more source

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