Results 51 to 60 of about 142,653 (288)

Trifluoromethoxylated Electron Acceptor Enabling Ternary Organic Solar Cells with over 20% Power Conversion Efficiency

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT In this work, we introduce a trifluoromethoxy (OCF3) group as a pseudo‐halogen terminal group design for non‐fullerene acceptors, which combines strong inductive electron‐withdrawing ability with moderate resonance donation. The as‐synthesized BTP‐OCF3, when benchmarked against its methoxy analogue BTP‐OCH3, demonstrates narrowed bandgap ...
Chunliang Li   +16 more
wiley   +1 more source

Design and Sensitivity Analysis of Dynamic Wireless Chargers for Efficient Energy Transfer

open access: yesIEEE Access, 2021
Tunable Self-Oscillating Switching (TSOS) methods are a robust solution for tuning of Inductive Power Transfer (IPT) systems. However, they require deep analysis to be an appropriate choice for Dynamic Wireless Charging (DWC) systems.
S. Abbas Moosavi   +4 more
doaj   +1 more source

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

open access: yesAdvanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong   +7 more
wiley   +1 more source

Electric Vehicle Charge Dynamic Wireless Power Transfer [PDF]

open access: yesE3S Web of Conferences
Gasoline-powered vehicles have historically been a significant source of greenhouse gas emissions, prompting a shift towards more sustainable transportation solutions. Plug-in electric vehicles (PEVs) have emerged as a cleaner alternative; however, their
Jeetender V.   +5 more
doaj   +1 more source

Inductive Power Transmission System for Electric Car Charging Phase: Modeling plus Frequency Analysis

open access: yesWorld Electric Vehicle Journal, 2021
The effectiveness of inductive power transfer (IPT) presents a serious challenge for improving the global recharge system performance. An electric vehicle (EVs) needs to be charged rapidly and have maximum power when it is charged with wireless ...
Naoui Mohamed   +2 more
doaj   +1 more source

AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller [PDF]

open access: yes, 2006
This paper presents a digital controller for AC voltage regulation of a bidirectional high-frequency link (BHFL) inverter using Deadbeat control. The proposed controller consists of inner current loop, outer voltage loop and a feed-forward controller ...
Elbuluk, M. E.   +3 more
core  

Engineering Hydrogen‐Down Water Configurations for Ampere‐Level Electrochemical CO2 Reduction to Formate

open access: yesAdvanced Functional Materials, EarlyView.
Electrochemical CO2 reduction (ECR) to formate is a promising route for sustainable chemical production. Herein, we report the synthesis catalysed byBi‐HfO2@C. The AIMD simulations, DFT calculations, and in situ SEIRAS measurements show that the modification of HfO2 on the Bi surface steers the interfacial water to adopt a favorable hydrogen‐down (OH2↓)
Xiao‐Dong Guo   +7 more
wiley   +1 more source

Wireless Power Transfer and IoT in EV Charging: Opportunities, Challenges, and Future Directions

open access: yesIEEE Access
The widespread adoption of electric vehicles (EVs) has spurred the development of advanced charging infrastructures that are efficient, intelligent, and user-friendly.
Shahid Karim   +4 more
doaj   +1 more source

An Improved and Integrated Design of Segmented Dynamic Wireless Power Transfer for Electric Vehicles

open access: yesEnergies, 2021
This paper describes improvements in a segmented dynamic wireless power transfer (DWPT) system for electric vehicles (EVs), and aims to offer a stable charging method for high-power applications.
Heshou Wang, Ka Wai Eric Cheng
doaj   +1 more source

Magnetic superlens-enhanced inductive coupling for wireless power transfer

open access: yes, 2012
We investigate numerically the use of a negative-permeability "perfect lens" for enhancing wireless power transfer between two current carrying coils. The negative permeability slab serves to focus the flux generated in the source coil to the receiver ...
Da Huang   +5 more
core   +1 more source

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