Results 31 to 40 of about 69,801 (268)
Detection of Demagnetization Faults in Axial Flux Permanent-Magnet Synchronous Wind Generators
A new method for detecting demagnetization faults in axial flux permanent magnet synchronous wind generators is presented in this study. Demagnetization faults occur in the case of total or partial loss of the magnetic properties of one or more permanent
Apostolos Lamprokostopoulos +2 more
doaj +1 more source
Accurate Modeling of a Transverse Flux Permanent Magnet Generator Using 3D Finite Element Analysis
This paper presents an accurate modeling method that is applied to a single-sided outer-rotor transverse flux permanent magnet generator. The inductances and the induced electromotive force for a typical generator are calculated using the magnetostatic
HOSSEINI, S. +2 more
doaj +1 more source
Determination of the impurities concentration in tungsten, molybdenum, tin, and tellurium targets using neutron activation analysis techniques [PDF]
The fast and k0-neutron activation analysis (k0-NAA)methods were used to investigate the radioimpurities concentration of 124Sb, 134Cs, 60Co, 87Rb, 182Ta, 233Pa, 65Zn, 56Fe, 110mAg, 51Cr, 95Zr, 75Se and 114mIn in the target samples WO3, MoO3, SnO2 and ...
A. El Abd, M. Mostafa
doaj
Fingerprint recognition is widely used in daily life. However, the physiological phenomena of human can still fail recognition under dry and low temperature conditions.
Chih-Han Cheng +10 more
doaj +1 more source
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
SCADA Data Analysis Methods for Diagnosis of Electrical Faults to Wind Turbine Generators
The electric generator is estimated to be among the top three contributors to the failure rates and downtime of wind turbines. For this reason, in the general context of increasing interest towards effective wind turbine condition monitoring techniques ...
Francesco Castellani +2 more
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ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks +5 more
wiley +1 more source
Words for maximal Subgroups of Fi24‘
Group Theory is the mathematical application of symmetry to an object to obtain knowledge of its physical properties. The symmetry of a molecule provides us with the various information, such as - orbitals energy levels, orbitals symmetries, type of ...
Yasin Faisal +2 more
doaj +1 more source
An Improved Structure of an Adaptive Excitation Control System Operating under Short-Circuit
The paper presents an extended structure for a minimum variance adaptive control system of an induction generator, which aims to improve its operating behavior under electrical short-circuit conditions.
FILIP, I. +3 more
doaj +1 more source
This paper presents the design and research results of a claw pole machine with hybrid excitation. This machine is excited by permanent magnets and an electromagnetic coil. Both excitation sources are located in the rotor of the machine.
Marcin Wardach +7 more
doaj +1 more source

