Results 31 to 40 of about 21,138 (312)
Energies, 2022 Permanent-magnet (PM) width-modulation array is designed to solve the issues resulting from big pole-pitches of PMLSMs in high-speed and high-precision systems.
Meizhu Luo, Jian Duan, Zhaoxi Yi
doaj +1 more source
Tidal flat deposits of the Lower Proterozoic Campbell Group along the southwestern margin of the Kaapvaal Craton, Northern Cape Province, South Africa [PDF]
, 1991 Lower Proterozoic stromatolites and associated clastic carbonate deposits of the Campbell Group, from the southern margin (Prieska area) of the Kaapvaal Craton, northern Cape Province, are described.
Aigner +66 more
core +1 more source
AIP Advances, 2017 The shape of the magnet is essential to the performance of a slotless permanent magnet linear synchronous machine (PMLSM) because it is directly related to desirable machine performance.
Kyung-Hun Shin +4 more
doaj +1 more source
A Review on Disturbance Analysis and Suppression for Permanent Magnet Linear Synchronous Motor
Actuators, 2021 In high-end testing and manufacturing equipment, a trend exists whereby the traditional servo feed system with a ball screw and rotary motor will gradually be replaced by a direct drive system.
Xuezhen Wang +6 more
doaj +1 more source
Enhancing Capabilities of Double Sided Linear Flux Switching Permanent Magnet Machines
Energies, 2018 Double sided linear flux switching permanent magnet machines (DSLFSPMMs) exhibit high thrust force density, high efficiency, low cost and robust double salient secondary (stator) structures.
Noman Ullah +5 more
doaj +1 more source
IET Electric Power Applications, 2022 Double‐sided tubular machine (DSTM) is very suitable for wave energy conversion but easily suffers from high thrust ripple. In order to get the minimum cogging force with the maximum thrust force, a new DSTM with hybrid segmented permanent magnet array ...
Liang Guo +5 more
doaj +1 more source
Overview of thrust ripple suppression technique for linear motors
Chinese Journal of Electrical Engineering, 2016 Direct-drive actuators, linear motors are widely used in many industrial and military applications, particularly in high-end manufacturing due to advantages of high force density, rapid dynamic response, and low thermal losses. Permanent magnet linear synchronous motors (PMLSMs) can dramatically improve the dynamic and static performance of the motion ...
openaire +1 more source
Optimized power converters for electrically augmented on-orbit propulsion systems
, 2002 Advances in satellite thruster technology have produced the requirement for high power electrical supplies to operate electrically augmented on-orbit propulsion systems.
Olyniec, Lee Michael
core +1 more source
Design and testing of a contra-rotating tidal current turbine [PDF]
, 2005 A contra-rotating marine current turbine has a number of attractive features: nearzero reactive torque on the support structure, near-zero swirl in the wake, and high relative inter-rotor rotational speeds.
Clarke, J. A. +3 more
core +4 more sources
Remote Assessment of Ataxia Severity in SCA3 Across Multiple Centers and Time Points
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Spinocerebellar ataxia type 3 (SCA3) is a genetically defined ataxia. The Scale for Assessment and Rating of Ataxia (SARA) is a clinician‐reported outcome that measures ataxia severity at a single time point. In its standard application, SARA fails to capture short‐term fluctuations, limiting its sensitivity in trials.
Marcus Grobe‐Einsler +20 more
wiley +1 more source