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Iron loss calculation in a claw-pole structure

The total core loss in a claw-pole structure has been calculated on the basis of the variation of the magnetic loading over the magnetization cycle in different parts of the machine. This variation has been estimated from a lumped parameter permeance network and 3D finite element simulations, studying the flux density waveform and loci in their elements. The results from the simulations are compar

Evaluation of Concrete Cylinder Tests Using Finite Elements

Nonlinear axisymmetric finite element analyses are performed on the uniaxial compressive test of concrete cylinders. The models include thick steel loading plates, and cylinders with height-to-diameter ratios (h/d) ranging from 1–3 are treated. A simple constitutive model of the concrete is employed, which accounts for the strain hardening and softening in the pre- and postfailure regions, respect

Optimization of Weighting Factors for Multiple Window Time-Frequency Analysis

This paper concerns the optimal weighting factors for multiple window spectrogram estimation of different stationary and non-stationary processes. The choice of windows are of course important but the weighting factors in the average of the different spectrograms are as important. The criterion for optimization is the normalized mean square error where the normalization factor is the spectrogrames

A Frozen Colophon in Ps 72?

The colophon in Ps 72:20 has long been puzzling psalm scholars. It reads כלו תפלות דוד בן־ישי—the prayers of David, son of Jesse, are ended—and as such it raises a number of questions. The first observation to be made is that the word תפלה is used, not תהלה. That this is a potential problem is clear already in the LXX, where תפלה is corrected to ὕμνοι. Secondly, the claim that the prayers of David

Learning in Mature Adulthood: A comparative study of Swedish and U3A learners

Interest in learning in mature adulthood has become increasingly important as attention has been focused on what is seen to be an impending crisis in the near future, i.e., shortage of labour due to the ever-growing number of elderly and decreasing nativity rates. In some circles "alarmist demographics" have overshadowed an arguably more important concern, that of providing for aging individuals'

Climate Change - what a tragedy?

Paper presentation at the conference Image in Science: Unfrequently asked questions. The paper presents an aristotelian understanding on the affects of climate documentaries with the starting point in An Inconvenient Truth by Al Gore.