Results 111 to 120 of about 39,174 (221)

Design of electrical system for exploration robot

open access: yesGong-kuang zidonghua, 2016
In order to improve intelligence of exploration robot, an electrical system taking ARM architecture as core was designed. The system adopts techniques including 2.4 GHz wireless communication, closed-loop control of motors, control of multi degree of ...
ZHAI Guodong, SU Yixin, GAO Peiyua
doaj   +1 more source

Scalable Fabrication of High‐Efficiency Thin‐Film Perovskite Solar Cells in Air via Polymer‐Mediated Synthesis of α‐FAPbI3 Microcrystals

open access: yesAdvanced Materials, Volume 38, Issue 14, 6 March 2026.
We report a scalable strategy using PPG‐coated α‐FAPbI3 microcrystals that may be processed in air and undergo controlled redissolution to form highly oriented, defect‐suppressed perovskite films. The PSCs derived from these films deliver a PCE of 26.5% and exhibit enhanced stability, demonstrating potential for industrial large‐scale perovskite ...
Fan Shen   +16 more
wiley   +1 more source

Optimization of a small passive wind turbine generator with multiobjective genetic algorithms [PDF]

open access: yes, 2007
In this paper Multiobjective Genetic Algorithms (MOGAs) are used for the design of a small wind turbine generator (WTG) coupled to a DC bus through a diode bridge.
Abdelli, Abdenour   +2 more
core   +2 more sources

MPPT tracker S.M.K.B. edition

open access: yes, 2010
Solarcom is a French company that is dedicated to supply, through solar energy, remote telecommunication devices such as repeaters of fiber optics or phone antennas. The project is commissioned by Solarcom for the EPS work team from ENIT, and consists in realize the design of a voltage regulator, based on maximum power point tracking algorithms (MPPT),
Mallorquín Colina, Dídac   +2 more
openaire   +1 more source

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

Exploitation robuste d’une éolienne à base d’une machine asynchrone à double alimentation

open access: yesRevue des Énergies Renouvelables, 2012
Dans cet article, nous nous intéressons à l’élaboration d’une loi de commande robuste par les modes glissants de la puissance active et de la puissance réactive statorique d’une machine asynchrone à double alimentation ‘MADA’, qui constitue la partie ...
A. Djoudi   +3 more
doaj  

Overcoming Hole‐Extraction Barriers: A Facile PEDOT:PSS Interlayer Unlocks Record‐Low Voltage Deficit in PbS Quantum Dot Solar Cells

open access: yesAdvanced Science, Volume 13, Issue 16, 18 March 2026.
A synergistic methanol and oxalic acid interface engineering strategy is developed for PbS quantum dot solar cells. This approach transforms the PEDOT:PSS layer into a dense, electronically uniform, and conductive network. Consequently, the device achieves a record‐low voltage deficit of 340 mV, yielding a remarkable Voc of 742 mV and a power ...
Shengkai Kang   +11 more
wiley   +1 more source

Steady state oscillations reduction using neural network IC-based variable step Size MPPT

open access: yesRevue des Énergies Renouvelables, 2016
This paper deals with the development of neural network IC-based variable step size MPPT controller. The proposed neural network MPPT controller is firstly, developed in offline mode required for testing different set of neural network parameters and ...
A. Harrag, H. Bahri, S. Messalti
doaj  

Copper Contact for Perovskite Solar Cells: Properties, Interfaces, and Scalable Integration

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
Copper electrodes, as low‐cost, scalable contacts for perovskite solar cells, offer several advantages over precious metals such as Au and Ag, including performance, cost, deposition methods, and interfacial engineering. Copper (Cu) electrodes are increasingly considered practical, sustainable alternatives to noble‐metal contacts in perovskite solar ...
Shuwei Cao   +4 more
wiley   +1 more source

Développement de deux modèles neuro-flous pour la poursuite du MPPT des modules photovoltaïques UDTS-50 Application au site d’Adrar

open access: yesRevue des Énergies Renouvelables, 2009
Dans cet article, nous développons deux modèles neuro-flous pour l’estimation du MPPT, à partir de la connaissance du courant de court-circuit et de la tension de circuit ouvert.
A. Mehdaoui   +3 more
doaj  

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