Results 141 to 150 of about 108,858 (358)

Universal transport near a quantum critical Mott transition in two dimensions

open access: yes, 2012
We discuss the universal transport signatures near a zero-temperature continuous Mott transition between a Fermi liquid (FL) and a quantum spin liquid in two spatial dimensions.
Pouyan Ghaemi   +4 more
core   +1 more source

Performance evaluation of synchronous reluctance motors with and without permanent magnets [PDF]

open access: yes, 2016
Nowadays, a growing interest in the efficiency and the cost of electrical machines has been noticed. Therefore, Synchronous Reluctance Motors (SynRMs) have become more attractive, thanks to their higher efficiency and nevertheless acceptable cost ...
Ibrahim, Mohamed Nabil Fathy   +2 more
core   +1 more source

Multistable Composite Laminate Grids as a Design Tool for Soft Reconfigurable Multirotors

open access: yesAdvanced Intelligent Systems, EarlyView.
Flexible, lightweight, stable: the reconfigurable multirotor combines stable flight in multiple shapes with low‐energy reconfiguration. Utilizing optimized multistable composites, it achieves self‐locking in open and folded configurations, cutting width‐span by 48% and allowing for safe gap traversal.
Luca Girardi   +4 more
wiley   +1 more source

Piezoceramics-based Devices for Active Balancing of Flexible Shafts [PDF]

open access: yes, 2006
This paper focuses on vibration control of flexible shafts by means of rotorfixed piezoelectric materials. The target is to realize compact solutions for the suppression of problematic resonant vibration at so-called flexural critical speeds.
Boer, A. de, Sloetjes, P.J.
core   +1 more source

Cold guided beams of water isotopologs

open access: yes, 2009
Electrostatic velocity filtering and guiding is an established technique to produce high fluxes of cold polar molecules. In this paper we clarify different aspects of this technique by comparing experiments to detailed calculations. In the experiment, we
C. H. Townes   +7 more
core   +1 more source

A Study on the Effect of Structural Compliance Placing in Soft Contact/Collision Properties of Multirotor Micro Aerial Vehicles

open access: yesAdvanced Intelligent Systems, EarlyView.
This article answers the question “Where is the best place to apply compliance in a multirotor micro aerial vehicle to make it more collision‐resilient?” by analyzing the output data of more than 1200 drone collision tests for four main configurations of micro‐quadcopters each possessing a unique softness layout of physical frame.
Amirali Abazari   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy