Several methods are available for performance prediction of single phase shaded pole induction motors. A simple model, in conjunction with a more complicated and accurate model, which considers the asymmetrical windings and core loss, is used to compare the prediction methods against experimental results. Saturation is incorporated in the model. Fundamental and harmonic flux density wave distri...

Pairing of homologous chromosomes is a crucial step in meiosis, which in fission yeast depends on nuclear oscillations. However, how nuclear oscillations help pairing is unknown. Here, we show that homologous loci typically pair when the spindle pole body is at the cell pole and the nucleus is elongated, whereas they unpair when the spindle pole body is in the cell center and the nucleus is rou...

The paper analyzes global solutions to the optimal digital controller realization problem based on maximizing a finite word length (FWL) closed-loop stability measure. For each closed-loop eigenvalue, a single-pole FWL stability function is first introduced, and a single-pole FWL stability measure is then defined as the maximum of the corresponding single-pole stability function over all the co...

The pole vaulting is a sport with a long history involving complex dynamic motion. The aim of pole vaulting for the athlete is to achieve maximum height. The dynamic behavior of the pole-athlete system is identical to an inverted pendulum system with the buckling pole acting as a spring. The purpose of this paper is to study the influence of factors on the pole vaulting performance such as the ...

This paper proposes a dual-harmonic pole-changing (PC) motor with split permanent magnet (PM) poles (DHPCM-SPMPs). By adopting PM pole structure, the amplitude of third flux density is increased greatly. Therefore, when PC winding adopted to couple fundamental and components, respectively, proposed can work as satisfy operating demands electric tractors. The design effect structure introduced f...

The aim of this study was to assess whether pole vaulters interacted differently with the pole during normal and perturbed approach phase conditions. Six national and international level athletes performed nine jumps, which were recorded and analysed. Pole vaulters were found to produce different coordination patterns when interacting with the pole during normal and perturbed approach phase con...

has the desired specifications. The main role of state feedback control is to stabilize a given system so that all closed-loop eigenvalues are placed in the left half of the complex plane. The following theorem gives a condition under which is possible to place system poles in the desired locations. Theorem 8.1 Assuming that the pair is controllable, there exists a feedback matrix such that the...

Rat kangaroo kidney epithelium (PtK2) cells develop prominent asters and spindles during anaphase B of mitosis. It has been shown that severing the spindle at early anaphase B in living PtK1 cells results in a dramatic increase in the rate of pole-pole separation. This result suggested that the asters pull on the spindle poles, putting tension on the spindle, while the spindle acts as a governo...