Results 161 to 170 of about 3,116 (278)

Modified Direct Torque Control for Permanent Magnet Synchronous Motor Drive Based on Fuzzy Logic Torque Ripple Reduction and Stator Resistance Estimator

, 2013
International audienceThe two important disadvantages of Direct Torque and Flux Control (DTC), are torque and flux ripples and stator resistance variation (which affects seriously the estimation stator flux and electromagnetic torque).
Ameur, A, Essounbouli, Najib, Mokhtari, B, Nollet, F   +3 more
core  

Comparison of a Miniaturized Implantable Two‐Stage Rotodynamic Blood Pump to Equivalent Single‐Stage Concepts

Artificial Organs, EarlyView.
This study aims to evaluate the potential of a multistage pump design to enhance hemocompatibility in left ventricular assist devices. We found that the two‐stage concept offers favorable hemolysis measures compared to single‐stage designs, as the reduction in peak shear stresses outweighs the disadvantage associated with prolonged residence time ...
Sarah Linnemeier, Bente Thamsen, Stefan Maric, Bernhard Semlitsch, Benjamin Torner, Daniel Zimpfer, Marcus Granegger   +6 more
wiley   +1 more source

Hoffmann's two‐toed sloth II: Muscle architectural properties in the thoracic limb of Choloepus (Pilosa: Xenarthra)

Journal of Anatomy, EarlyView.
Two‐toed sloths use their thoracic limbs for more frequent and greater suspensory support than three‐toed sloths and have muscle architectural properties consistent with stability of the pectoral girdle, enhanced flexor force/torque applied at the shoulder and elbow joints, and grip on the support as indicated by their myology. Abstract Two‐toed sloths
C. S. Tucker, A. M. Mossor, K. B. Spainhower, J. A. Avey‐Arroyo, M. T. Butcher   +4 more
wiley   +1 more source

High-efficiency predictive torque control of induction motors in PV water pumping using GTO-optimized PI controller. [PDF]

Sci Rep
Kechida R, Gacem A, Romdhane M, Naoui M, Almalaq Y, Alturki M, Albaker A, Guesmi T.   +7 more
europepmc   +1 more source

In Vitro Aligners Force Analysis in the Maxillary Arch During En‐Masse Retraction With Different Attachment Positions

Orthodontics &Craniofacial Research, EarlyView.
ABSTRACT Objective This study aimed to analyse the three‐dimensional forces acting on maxillary teeth with aligners activation of en‐masse retraction based on the different attachment positions in vitro. Methods Three groups were designed for the same 0.25 mm en‐masse retraction forces with three different attachment positions.
Yongjie Fan, Xiaonan Sun, Xin Lv, Le An, Junting Wei, Bingle Wang, Gebing Liu   +6 more
wiley   +1 more source

Effect of air and fuel injection pressure variation on torque and fuel economy in spark-ignition engines. [PDF]

Sci Rep
Rojas-Reinoso EV, Masaquiza S, Calderón D, Soriano JA.   +3 more
europepmc   +1 more source

Effect of repeated hot water immersion on muscle strength, power, function and physical activity in healthy older adults: A randomised crossover trial

Experimental Physiology, EarlyView.
Abstract Ageing leads to an increased prevalence of sarcopenia and frailty, characterised by progressive declines in muscle strength, power and function and reduced physical activity. Hot water immersion (HWI) could potentially improve muscle function, but this is yet to be explored in older adults.
Daniel D. Piccolo, Jo Corbett, Timothy A. Exell, Joseph M. Moore, Amy Wright, Mohammad G. A. Alnajjar, Luke C. Hudson, Poppy A. Marsh, Veronika Praskacova, Melitta A. McNarry, Kelly A. Mackintosh, Zoe L. Saynor, Anthony I. Shepherd   +12 more
wiley   +1 more source

An optimal multi-objective control architecture of PMSM drives. [PDF]

Sci Rep
Mohapatra BK, Sharma V, Bhowmik P, Mishra R.   +3 more
europepmc   +1 more source

Ischaemic pre‐conditioning improves workload, fatigue and recovery in team sport: A randomized, double‐blind, placebo‐controlled crossover trial

Experimental Physiology, EarlyView.
Abstract Ischaemic preconditioning (IPC) is reported to improve performance, fatigue and recovery, yet evidence in team‐sport settings remains limited. We examined the effects of repeated IPC on external workload, perceptual strain and recovery during ecologically valid Gaelic football training.
Lorcan Daly, Shane Farrell, Alexander Gamble   +2 more
wiley   +1 more source

Design of sliding mode model predictive dual-loop control through self-learning strategy to mitigate the torque ripple in BLDC motor for electric vehicles. [PDF]

Sci Rep
Prabhu N, Rajaram T, Ashok B.
europepmc   +1 more source