Results 91 to 100 of about 51,226 (308)

Optimal torque control of fault-tolerant permanent magnet brushloss machines [PDF]

, 2003
Describes a novel optimal torque control strategy for fault-tolerant permanent magnet brushless ac drives operating in both constant torque and constant power modes.
Atallah, K., Howe, D., Wang, J.B.
core   +1 more source

Sensorized Engineered Tissues with Built‐in Thermoregulation and Nutrient Supply

Advanced Functional Materials, EarlyView.
This work introduces a granular hydrogel‐based tissue engineering platform that includes a closed‐loop temperature control to maintain 37°C and sustainably releases nutrients, thereby enabling cells to retain a high viability even if stored at room temperature for up to 24 h.
Antonia Georgopoulou, Jakob Schreiner, Miriam Filippi, Aiste Balciunaite, Robert K. Katzschmann, Esther Amstad   +5 more
wiley   +1 more source

Thermo‐Mechanically Recyclable Smart Textiles from Circularly Knitted Liquid Crystal Elastomer Fibers

Advanced Functional Materials, EarlyView.
Reprogrammable multi‐material smart textiles knitted from liquid crystal elastomer fibers undergo 2D and 3D deformation under thermal and photo stimuli. Circularly knitted tubular structures reversibly contract in radial and axial directions, enabling autonomous climbing, liquid release, and micro pumping.
Xue Wan, Tongxiang Deng, Linda Plaude, Bo Gao, Siyao Chen, Fabien Sorin, Kaspar M. B. Jansen, Kun Zhou, Albert P. H. J. Schenning   +8 more
wiley   +1 more source

Electromagnetic performance analysis of a new high‐speed hybrid excitation synchronous machine

IET Electric Power Applications
To facilitate the regulation of the air‐gap magnetic field of permanent magnet synchronous machines, a novel topology of a high‐speed hybrid excitation synchronous machine (HESM) was presented.
Wu Su, Nan Lin, Xianbiao Zhang, Dong Wang   +3 more
doaj   +1 more source

An Analytical Expression for Magnet Shape Optimization in Surface-Mounted Permanent Magnet Machines

Mathematical and Computational Applications, 2018
Surface-mounted permanent magnet machines are widely used in low and medium speed applications. Pulsating torque components is the most crucial challenge, especially in low-speed applications.
Ali Jabbari
doaj   +1 more source

Optimization of an axial-flux permanent-magnet generator for a small wind energy application [PDF]

, 2011
Axial-flux permanent-magnet synchronous machines have a high torque output at low speeds and are therefore very suitable for direct drive wind energy applications.
Dupré, Luc, Sergeant, Peter, Vansompel, Hendrik   +2 more
core   +1 more source

Rotor Eddy-Current loss in permanent-magnet brushless AC machines [PDF]

, 2010
This paper analyzes rotor eddy-current loss in permanent-magnet brushless ac machines. It is shown that analytical or finite-element techniques published in literature for predicting rotor eddy-current loss using space harmonic based approaches may not ...
Arshad, W.M., Atallah, K., Chin, R., Lendenmann, H., Wang, J.   +4 more
core   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source

Torque-ripple minimization in modular permanent-magnet brushless machines [PDF]

, 2003
This paper discusses the suitability of four-phase, five-phase, and six-phase modular machines, for use in applications where servo characteristics and fault tolerance are key requirements.
Atallah, K., Howe, D., Wang, J.B.
core   +1 more source

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

Advanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source