Results 51 to 60 of about 26,566 (274)

Universal Fluorine‐Free Proton Exchange Polymers for High‐Performance and Durable Fuel Cells Operable Under Severe Conditions

Advanced Materials, EarlyView.
Due to excellent physical and chemical stability, the novel designed fluorine‐free polymers with aliphatic‐chain backbones (SP‐PAC12‐QP) are regarded as promising and universal alternatives to perfluorosulfonic acid membranes. Their performances are further improved by physical reinforcement, where the fuel cell performance under high temperature and ...
Fanghua Liu, Kenji Miyatake, Ick Soo Kim, Ahmed Mohamed Ahmed Mahmoud, Vikrant Yadav, Fang Xian   +5 more
wiley   +1 more source

Rotor parameter determination for the brushless doubly fed (induction) machine [PDF]

, 2015
A procedure has been established for obtaining equivalent circuit parameters for the Brushless Doubly Fed Machine (BDFM), also known as the Brushless Doubly Fed Induction Machine (DFIM), by transforming a reduced coupled-circuit model into a sequence ...
,, Abdi, E, Abdi, S, Broekhof, A, McMahon, R, Roberts, P, Tatlow, M   +6 more
core   +1 more source

Sensorless control system by doubly fed machine on based the Kalman filter

Technical sciences and technologies
Modern sensorless asynchronous electric drive systems for stator control widely use Kalman filters as observers of coordinates, parameters and disturbing influences.
O. Kliuiev, O. Sadovoi, Y. Sokhina
semanticscholar   +1 more source

Roadmap to Precision 3D Printing of Cellulose: Rheology‐Guided Formulation, Fidelity Assessment, and Application Horizons

Advanced Materials Technologies, EarlyView.
This critical review presents a comprehensive roadmap for the precision 3D printing of cellulose. Quantitative correlations link ink formulation and rheological properties to print fidelity and final material performance. This framework guides the development of advanced functional materials, from biomedical scaffolds to electromagnetic shielding ...
Majed Amini, Hadi Hosseini, Seyyed Alireza Hashemi, Mohammad Arjmand   +3 more
wiley   +1 more source

Modal Analysis of Grid Connected Doubly-Fed Induction Generators [PDF]

, 2007
This paper presents the modal analysis of a gridconnected doubly fed induction generator (DFIG). The change in modal properties for different system parameters, operating points, and grid strengths are computed and observed.
Mei, M, Pal, B C
core   +1 more source

Advances in Solid‐Phase Processing Techniques: Innovations, Applications, and Future Perspectives

Advanced Materials Technologies, EarlyView.
Based on practical manufacturing challenges, this review examines advanced solid‐phase processing techniques that overcome the inherent limitations of conventional melting‐based and traditional solid‐phase manufacturing, enabling the production of higher‐performance components at reduced cost through process innovation and improved supply‐chain ...
Tianhao Wang
wiley   +1 more source

Overview of the PI (2DoF) algorithm in wind power system optimization and control

Frontiers in Energy Research
Recent research generally reports that the intermittent characteristics of sustainable energy sources pose great challenges to the efficiency and cost competitiveness of sustainable energy harvesting technologies. Hence, modern sustainable energy systems
Belachew Desalegn, Belachew Desalegn, Bimrew Tamrat, Bimrew Tamrat   +3 more
doaj   +1 more source

Overview of permanent-magnet brushless drives for electric and hybrid electric vehicles [PDF]

, 2008
With ever-increasing concerns on our environment, there is a fast growing interest in electric vehicles (EVs) and hybrid EVs (HEVs) from automakers, governments, and customers.
Chan, CC, Chau, KT, Liu, C
core   +1 more source

A New Stator Winding Inter-Turn Short Circuit Fault Detection Method For Brushless Doubly Fed Induction Machine

International Symposium on Industrial Electronics, 2020
The brushless Doubly Fed Induction Machine (BDFIM) with high reliability and robust structure demonstrates technical and commercial advantages both as a generator and motor for variable speed drive applications.
M. Afshar, S. Abdi, Seyed Abolfazl Mortazavizadeh, P. Fajri, M. Ebrahimi   +4 more
semanticscholar   +1 more source

Non‐Invasive Multidimensional Capacitive Sensing for In Vivo Traumatic Brain Injury Monitoring

Advanced Materials Technologies, EarlyView.
Single‐electrode, multidimensional capacitive sensors noninvasively assess cerebral autoregulation and compliance for traumatic brain injury monitoring. ABSTRACT Traumatic brain injury (TBI) is a major cause of death and disability, but invasive intracranial pressure (ICP) monitoring is risky, and current non‐invasive methods lack the resolution and ...
Shawn Kim, Yu‐Jen Cheng, Tianyi Li, Nathan White, Xu Wang, Kristyn Ringgold, Lauren Neidig, Younghoon Kwon, Jae‐Hyun Chung   +8 more
wiley   +1 more source