Surface permanent magnet vernier motors (SPMVMs) possess the potential for direct-drive applications due to feature of high torque density. This paper presents a deep investigation into armature reaction modeling and semi-analytical optimization framework considering constant power speed range (CPSR) in flux weakening region SPMVM. The new model can identify air gap density each harmonic compon...

The winding segmented permanent magnet linear synchronous motor (WS-PMLSM) has not only a general slotting effect but also unique two-end caused by the stator and finite length passive mover, which makes detent force of WS-PMLSM possess qualities all types motors. This paper adopts physics-based multiple analytical method to study properties. First, an accurate sub-domain model is used obtain m...

Permanent-magnet synchronous machines (PMSMs) are widely used in electric vehicles owing to many advantages, such as high power density, high efficiency, etc. Iron losses can account for a significant component of the total loss in permanent-magnet (PM) machines. Consequently, these losses should be carefully considered during the PMSM design. In this paper, an analytical calculation method has...

A new multichannel MAC protocol called Hop Reservation Multiple Access (HRMA) for packet-radio networks is introduced, specified and analyzed. HRMA is based on very-slow frequencyhopping spread spectrum (FHSS) and takes advantage of the time slotting necessary for frequency hopping. HRMA allows a pair of communicating nodes to reserve a frequency hop (channel) using a hop reservation and handsh...

Resale price maintenance (RPM), slotting fees, loyalty rebates and other related vertical practices can allow an incumbent manufacturer to transfer pro ts to retailers. If these retailers were to accommodate entry, upstream competition could lead to lower industry pro ts and the breakdown of these pro t transfers. Thus, in equilibrium, retailers can internalize the e ect of accommodating entry ...

Employing a family of dimpled and slotted spherical resonators, set X-band waveguide bandpass filters (BPFs) is presented in this study. The resonators originated from with depression (hence, dimples are formed) cutting slots into the resonator shell. With large number experiments, combination using twisted coupling topology, slotting on results simultaneous low insertion loss (IL), good out-of...

SKD 11 tool steel is among the most popular metals in mold industries for making different kinds of cold work molds and dies with high accuracy and long service life. The demand for higher quality, lower manufacturing costs, particularly the environmentally friendly characteristics, have provided the stimuli for manufacturers and researchers to find alternative solutions. An excellent media is ...

ntercalation—the slotting of cells in between one another—is an established method for converting short and fat into long and slim. This is all very well in slippery, adhesion-sparse mesenchymal tissues. But many such extension events occur in epithelial tissues, where cells are glued together by adhesion complexes. Claire Bertet, Lawrence Sulak, and Thomas Lecuit (IBDM, Marseille, France) now ...