Results 91 to 100 of about 2,619 (292)

A neuro-fuzzy approach for stator resistance estimation of induction motor = pendekatan neuro-fuzzy untuk meramal rintangan stator pada motor induksi [PDF]

open access: yes, 2011
During the operation of induction motor, stator resistance changes incessantly with the temperature of the working machine. This situation may cause an error in rotor resistance estimation of the same magnitude and will produce an error between the ...
Ahmed Mohamed, Ahmed Haidar   +3 more
core  

A High-Order Sliding Mode Observer for Sensorless Control ofDFIG-Based Wind Turbines

open access: yes, 2012
International audienceThis paper deals with the sensorless control of a doubly-fed induction generator (DFIG) based wind turbine. The sensorless control scheme is based on a high-order sliding mode (HOSM) observer to estimate the DFIG rotational speed ...
Beltran, Brice   +3 more
core   +2 more sources

Socio‐economic inequalities and heart failure morbidity and mortality: A systematic review and data synthesis

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 927-941, April 2025.
Abstract Socio‐economic status (SES) has been associated with incident and prevalent heart failure (HF), as well as its morbidity and mortality. However, the precise nature of the relationship between SES and HF remains unclear due to inconsistent data. This study aims to provide a comprehensive assessment and data synthesis of the relationship between
Abdul Shakoor   +8 more
wiley   +1 more source

Stator flux based-MRAS position/speed observer of sensorless switched reluctance motor drives including startup operation

open access: yesAin Shams Engineering Journal
This paper introduces a new sensorless approach-based model reference adaptive system (MRAS) for switched reluctance motor (SRM). A simplified nonlinear model is derived using phase-inductance-based finite element (FE) analysis. A hybrid sensorless model
Hady Abdel Maksoud, Mohamed S. Zaky
doaj   +1 more source

Backstepping control with integral action of PMSM integrated according to the MRAS observer

open access: yesIOSR Journal of Electrical and Electronics Engineering, 2014
The work developed in this article, has aims to control design law is based on Backstepping method to ensure the servo-control of the permanent magnet synchronous motors (PMSM). The slow convergence of adaptation can result, in some cases; irreversible instabilization loop, especially in the presence of nonlinearity and/or couplings.
A. Larbaoui   +4 more
openaire   +1 more source

Incident heart failure: comparing management and outcome in primary and hospital settings in Western Sweden 2008–2017

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 832-838, April 2025.
Abstract Aim Heart failure (HF) is a highly prevalent condition managed in both primary care (PC) and hospital care (HC)‐based settings. HF patients managed in these two settings may differ in their demography, comorbidities and outcomes, so we aimed to compare the patient management in PC and HC in the Västra Götaland Region (VGR) in Sweden.
Xiaojing Chen   +4 more
wiley   +1 more source

Global identification of electrical and mechanical parameters in PMSM drive based on dynamic self-learning PSO [PDF]

open access: yes, 2018
A global parameter estimation method for a PMSM drive system is proposed, where the electrical parameters, mechanical parameters and voltage-source-inverter (VSI) nonlinearity are regarded as a whole and parameter estimation is formulated as a single ...
Li, X.H.   +4 more
core   +1 more source

MELD score predicts outcomes in patients with advanced heart failure: A longitudinal evaluation

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 839-847, April 2025.
Abstract Aims Advanced heart failure (AHF) is characterized by recurrent episodes of haemodynamic instability and frequent hospitalizations, leading to a progressive decline in quality of life and high mortality rates. The objectives of this study were to evaluate the effect of the model for end‐stage liver disease (MELD) score and its variations in ...
Francesco Curcio   +10 more
wiley   +1 more source

Design and Implementation of an Electric Differential for Traction Application

open access: yes, 2010
International audienceThe use of an Electric Differential (ED) constitutes a technological advance in vehicle design along with the concept of more electric vehicles.
Abdessemed, Rachid   +5 more
core   +1 more source

Altitude-dependent polarization in radio pulsars

open access: yes, 2008
Because of the corotation, the polarization angle (PA) curve of a pulsar lags the intensity profile by 4r/Rlc rad in pulse phase. I present a simple and short derivation of this delay-radius relation to show that it is not caused by the aberration ...
Backer   +42 more
core   +2 more sources

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