this study aimed to investigate the contribution of four common dfnb (“dfn” for deafness and “b” for autosomal resessive locus) loci and gjb2 gene mutations (exon 2) in hearing impairment in individuals living in markazi and qom provinces of iran. forty consanguineous iranian families with at least three affected individuals in family or pedigree who suffer from an autosomal recessive non-syndr...

This paper proposes a stator core design to achieve variable-flux characteristics enhanced by magnetic saturation in fractional-slot concentrated winding (FSCW) permanent-magnet (PM) motors without additional excitation systems, complicated structures, or active controls. Magnetic induced at suitable locations can enhance because the PM flux linkage is variable with cores. In distributed config...

The application of flux-observer-based sensorless control to permanent-magnet brushless ac motor drives is described. Current methods of speed estimation are assessed, both theoretically and experimentally, and an improved method, which combines the best features of methods in which speed is derived from the differential of rotor position and from the ratio of the electromotive force to excitat...

This paper presents a novel topology of dual airgap radial flux permanent magnet vernier machine (PMVM) in order to obtain higher torque per volume and similar average compared conventional PMVM machine. The proposed contains two stators sandwiched yokeless rotor. rotor helps reduce the by providing an effective linkage stator windings. improved competitiveness was validated using 2D finite ele...

One advantage of multi-phase machines is the possibility to use the third harmonic of the rotor flux for additional torque generation. This effect can be maximized for Permanent Magnet Synchronous Machines (PMSM) with a high third harmonic content in the magnet flux. This paper discusses the effects of third harmonic current injection (THCI) on a five-phase PMSM with a conventional magnet shape...

INDEX OF SYMBOLS B Magnetic flux density (Tesla) c Speed of light ≈ 3×10 m/s Co Capacitance per unit length (F/m) Em Magnetic energy storage (Joules) H Magnetic field intensity (A/m) I Current (A) J Current density (A/m) K Surface current density (A/m) Lo Inductance per unit length (H/m) L Inductance (H) N Coil turns R Reluctance (A-turns/Wb) Φ Flux (Weber) λ Flux linkage (Weber-turns) εo Permi...

Since the magnetizing characteristics are highly non-linear in nature, the torque ripple is high in the Switched Reluctance Motor (SRM). The torque ripple can be minimized by using a novel control technique called Direct Torque Control (DTC). In DTC technique, torque is controlled directly through control of magnitude of the flux-linkage and change in speed of the stator flux vector. The flux a...

 ABSTRACT Background: Autosomal dominant polycystic kidney disease (ADPKD) is an inherited disorder with genetic heterogeneity. Up to three loci are involved in this disease, PKDI on chromosome 16p13.3, PKD2 on 4q21, and a third locus of unknown location. Methods: Here we report the first molecular genetic study of ADPKD and the existence oflocus heterogeneity for ADPKD in the Iranian populatio...

High-performance electric drive applications necessitate a high fidelity model to predict the terminal characteristics of machines in design stage fulfill system-level evaluation together with converters. This article interprets winding function theory (WFT) from field perspective and incorporates secondary effects, such as slotting iron nonlinearity into it accurately main flux linkage inducti...