Results 51 to 60 of about 5,244 (176)

Emerging Trends in Bioinspired Superhydrophobic and Superoleophobic Sustainable Surfaces

Advanced Materials, Volume 37, Issue 12, March 26, 2025.
Biomimicry offers an exceptional opportunity to design materials with advanced properties. This review summarizes the latest findings for developing sustainable superhydrophobic–superoleophobic materials using biomimicry, their challenges, and future directions.
Cerys M. Cormican, Sinem Bektaş, Francisco J. Martin‐Martinez, Shirin Alexander   +3 more
wiley   +1 more source

CNN‐based multi‐output regression model to estimate infrastructural surface crack dimensions adopting a generalised patch size and FWHM‐based width quantification

Digital Twins and Applications, Volume 2, Issue 1, January/December 2025.
Multi‐output regression based on convolution neural network is proposed to estimate crack properties directly from an input image. Ablation study of the top 3 models. Mathematical morphology for efficient crack segmentation and FWHM‐based crack‐width quantification. Abstract To cater the need for real‐time crack monitoring of infrastructural facilities,
Sudipta Debroy, Arjun Sil
wiley   +1 more source

Improvement in the Stability of DC Electrical Power Distribution Systems in More Electric Aircraft

IEEE Access
The number of power converters that act as constant power loads (CPLs) has increased continuously with the penetration of power electronic technology in more electric aircraft (MEA).
Ratapon Phosung, Kongpan Areerak, Kongpol Areerak   +2 more
doaj   +1 more source

Uncertainty Sources in the Estimation of the Partial Discharge Inception Voltage in Turn-to-Turn Insulation Systems

IEEE Access, 2020
Partial discharges (PD) are one of the main causes of premature failure in low-voltage motors driven by variable-speed drives. The use of these control systems are being quite extended due to new applications, such as the more electric aircraft (MEA) or ...
Manuel Gomez La De Calle, Juan Manuel Martinez-Tarifa, Angel Manuel Gomez Solanilla, Guillermo Robles   +3 more
doaj   +1 more source

A Digital Synchronous Rectification Control Strategy With Duty‐Ratio Compensation for LLC Resonant Converters

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
To mitigate duty cycle loss at high frequencies, this paper proposes a digital control strategy for switching timing adjustment by compensating the lost conduction time. To achieve this aim, the mechanism of duty ratio loss at high frequencies is analysed and a mathematical model is developed to quantify the lost conduction time across different loads ...
Haihong Qin, Yang Zhang, Zhenhua Ba, Ziyue Zhu, Qian Xun, Feifei Bu   +5 more
wiley   +1 more source

Enhanced Design of Power Conditioning Systems for More Electric Aircraft Applications

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
(1) Enhanced controller design of a power conditioning system, by employing an effective control loop based on the peak current control method, considering the detailed bidirectional converter average model. (2) Improved converter gravimetric power density by introducing an innovative inductor design, based on a multi‐objective Pareto optimisation. (3)
Nick Rigogiannis, Nick Papanikolaou, Yongheng Yang, Vassilios G. Agelidis   +3 more
wiley   +1 more source

LCL Filter Design with EMI Noise Consideration for Grid-Connected Inverter

Energies, 2018
The grid-injected current total harmonics distortion (THD) and electromagnetic interference (EMI) noise must be considered in a transformer-less grid-connected inverter for a more electric aircraft (MEA) system.
Yitao Liu, Ching-Ming Lai
doaj   +1 more source

A Novel Step‐Up Converter With Lower Ripple and RHP Zero Elimination

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
The paper proposes a novel step‐up converter that simultaneously achieves right‐half plane (RHP) zero elimination and ripple suppression, offering a structurally simple solution for high‐precision and high‐reliability boost applications. ABSTRACT The paper presents a novel step‐up converter featuring ultralow output ripple and elimination of right‐half‐
Siwen Ye, Jiawei Zhu, Mingou Wei, Xijun Yang   +3 more
wiley   +1 more source

Enhanced power density and energy-efficient high-speed permanent magnet starter-generator using multi-physics optimization strategies for future electric aircraft

Results in Engineering
In recent years, electric vehicles have gained popularity due to the demand for energy efficiency, power autonomy, reduced greenhouse gas emissions, and declining fossil fuel reserves.
Venkatesh G, K.R.M. Vijaya Chandrakala, Poonam Kumari, S. Saravanan, S. Balamurugan, Ratheesh P   +5 more
doaj   +1 more source

Direct Voltage Measurement for Sensorless Control of Single‐Stage Current Source Inverter in Motor Drive Applications

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
For applications that must operate above a base speed, such as more electric aircraft (MEA), single‐stage CSI converters (i.e., CSI without pre‐stage converter) are a promising solution. The ability to directly measure the terminal voltages allows for a simple and robust sensorless control approach to be used with this power converter is taken into ...
Emilio Carfagna, Giovanni Migliazza, Giampaolo Buticchi, Emilio Lorenzani   +3 more
wiley   +1 more source