In this study, different designs of radial-flux direct-driven permanent magnet (PM) motors are compared. They should replace an induction motor and its gearbox for an industrial application requiring 5 kW and 50 rpm. The goal is to show if the use of concentrated windings brings some benefits for this application, the PM motors having a high number of poles. Different combinations of the number...

Based on brief introduction of the operation principle and superior performance of the permanent-magnet (PM) deflection type three-degrees-of-freedom motors, one novel PM motor air-gap magnetic-field calculation schemes based on the analytical and finite-element methods are presented and scalar magnetic-flux density calculation formulae in the spherical coordinate are developed. A rotor magneti...

A new squirrel-cage rotor structure induction motor (IM) that has a auxiliary permanent magnet (PM) rotor and improved cage-rotor structure is presented to enhance the inherent power factor of the IM, and a prototype motor is fabricated by modifying the rotor of a conventional three-phase four-pole squirrel-cage induction motor. The flux linkage, flux distribution, power factor, core loss and e...

The investigation, development and fabrication of a magnetic levitated linear motion system, based on Switched Reluctance (SR) principle for high-acceleration and high-precision position control applications, are addressed in this paper. The proposed system is very suitable for applications that require highperformance linear motions: from high-precision manufacturing machines, clean-room wafer...

: Hypohidrotic ectodermal dysplasia (HED) is the most common type of that result faulty development leading to such defects as hypotrichosis, anodontia or hypodontia, and hypohidrosis anhidrosis. X-linked HED caused by mutations in ectodysplasin A (EDA) gene accounts for 90% all cases. Autosomal other involved genes, EDA-receptor (EDAR) gene. In this study, we included two distinct families wit...

Hypodontia is caused by interactions among genetic, epigenetic, and environmental factors during tooth development, but the actual mechanism is unknown. DNA methylation now appears to play a significant role in abnormal developments, flawed phenotypes, and acquired diseases. Methylated DNA immunoprecipitation (MeDIP) has been developed as a new method of scanning large-scale DNA-methylation pro...

In cases of ectodermal dysplasia (ED); anodontia, hypodontia, conic teeth, underdeveloped crests, vertical size loss and presence of cleft lip and palate may occur due to developmental defects in ectoderm-origin organs and tissues. In such patients, alternative rehabilitation methods are required because of insufficient areas for denture retention. Dental implants are one of the alternative met...