Results 71 to 80 of about 60,784 (356)

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Low cogging torque design and simplified model-free predictive current control for radial-flux dual three-phase permanent magnet electric machines

open access: yesAdvances in Mechanical Engineering, 2019
This study presents two improved designs of eccentric-shaped permanent magnets and teeth-shaped stators in radial-flux dual three-phase permanent magnet electric machines to reduce cogging torque and torque ripple.
Hsing-Cheng Yu   +3 more
doaj   +1 more source

Large direct drive generators: the induction machine as an alternative to permanent magnet machines

open access: yesThe Journal of Engineering, 2019
Design of direct drive power take off in renewable energy generators tends to focus on force density, naturally leading to the use of relatively expensive permanent magnet machines.
Nick J. Baker, Liam A. Naugher
doaj   +1 more source

Effect of optimal torque control on rotor loss of fault-tolerant permanent-magnet brushless machines [PDF]

open access: yes, 2002
A faulted phase in a fault-tolerant permanent-magnet brushless machine can result in significant torque ripple. However, this can be minimized by using an appropriate optimal torque control strategy.
Atallah, K.   +3 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines

open access: yesApplied Sciences, 2021
There are three principal sources of noise and vibration in electrical machines: electromagnetic sources, mechanical sources, and aerodynamic sources. Nowadays, one of the major advantages of permanent-magnet synchronous machines is their torque density.
Iratxo Gómez   +3 more
doaj   +1 more source

A quantitative comparison between BLDC, PMSM, brushed DC and stepping motor technologies [PDF]

open access: yes, 2016
Brushless DC machines (BLDC), Permanent Magnet Synchronous Machines (PMSM), Stepping Motors and Brushed DC machines (BDC) usage is ubiquitous in the power range below 1,5kW. There is a lot of common knowledge on these technologies.
De Viaene, Jasper   +4 more
core   +2 more sources

Analytical method for magnetic field calculation in a low-speed permanent-magnet harmonic machine [PDF]

open access: yes, 2011
Magnetic-gearing effect has become increasingly attractive when designing direct-drive low-speed permanent-magnet machines. The machines derived from the magnetic-gearing effect can be termed as harmonic machines.
Chau, KT   +4 more
core   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Comparison of Two Cogging Torque Reducing Methods of 6-Poles Single Phase SMPM [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2013
Surface permanent magnet structure of pm machines is widely used in these types of machines. In the slotted machines, low armature reaction and high overload capability features can be achieved by selecting surface permanent magnets.
Amir Hossein Tavakol Zadeh   +2 more
doaj  

Home - About - Disclaimer - Privacy