Results 71 to 80 of about 152,949 (296)

A general magnetic-energy-based torque estimator: validation via a permanent-magnet motor drive [PDF]

open access: yes, 2008
This paper describes the use of the current–flux-linkage ($i{-}psi$ ) diagram to validate the performance of a general magnetic-energy-based torque estimator.
Cossar, C.   +4 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Properties of concrete containing recycled PET bottles as sand replacement [PDF]

open access: yes, 2020
The modern lifestyle along with the new technologies have contributed the increasing of waste materials production. Plastic is one of the waste materials which is non-disposal and non-biodegradable material that can remain on earth without degradation ...
Abdul Awal, A.S.M   +2 more
core  

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Model predictive direct torque control of a three‐phase four‐switch inverter induction motor driving system

open access: yesIET Smart Grid, 2023
With the development of power electronics and motor driving system, AC motor speed control or the servo system has been widely explored. Among them, the Induction Motor (IM) driving based on a three‐phase six‐switch inverter has become a mature ...
Jialong Qu, Kerui Li, Shuo Yan
doaj   +1 more source

Componential coding in the condition monitoring of electrical machines Part 2: application to a conventional machine and a novel machine [PDF]

open access: yes, 2003
This paper (Part 2) presents the practical application of componential coding, the principles of which were described in the accompanying Part 1 paper.
A D Ball   +13 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Scalar Control for Six Phase Matrix Converter Fed Double Star Induction Motor

open access: yesAdvances in Electrical and Computer Engineering, 2010
Two different control strategies applied to a direct AC-AC six phase matrix converter are investigated in the present paper. The first strategy is derived from the Venturini method and the second approach is practically an extension of the scalar ...
BENDIABDELLAH, A., BACHIR, G.
doaj   +1 more source

Kintamosiosios srovės variklių identifikacija / Induction motor parameter identification

open access: yesMokslas: Lietuvos Ateitis, 2018
A review of induction motor parameter identification principles, most common identification methods, their advantages and disadvantages is presented. Six phase induction motor mathematical model is presented. The main steps of writing objective functions
Dominykas Beištaras   +2 more
doaj   +1 more source

A Rectified Reiterative Sieved-Pollaczek Polynomials Neural Network Backstepping Control with Improved Fish School Search for Motor Drive System

open access: yesMathematics, 2020
As the six-phase squirrel cage copper rotor induction motor has some nonlinear characteristics, such as nonlinear friction, nonsymmetric torque, wind stray torque, external load torque, and time-varying uncertainties, better control performances cannot ...
Chih-Hong Lin
doaj   +1 more source

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