Ghost pattern image of a current density filament has been investigated in n-GaAs at 4.2 K. Applying a pulse voltage above the breakdown voltage, a current density filament is observed. After the pulse voltage is switched off, the ghost...

In this study the two main paradigms for looking at the design activity are compared in terms of their ability to describe the industrtial design process. Special interest is paid to how close these descriptions are to capturing the des...

Lauten and Ray pointed out the case of metrics (of correct signature) which do not allow a gravitational field. The incompatibility between the field equations and the high symmetry imposed by the underlying four-parameter group of moti...

Here it is shown that n points in the plane, no three on a line, always determine at least n slopes, with equality iff the n points are the vertices of an affinely regular polygon. Some bounds are also obtained on the minimum number of ...

We characterise the set of all linear mappings on the algebra of all n × n matrices that preserve diagonalisable matrices. Our result is an extension of the famous Motzkin-Taussky's result on the simultaneous diagonalisability of a lin...

A simple and effective method is described for preparing freeze-thaw density gradients which is free of the problems of uneven solute distribution. It consists of blending aqueous freeze-thaw gradients with hypertonic diluent. The routi...

In the temperature range from 20°K up to 32°K the difference in vapor pressure between normal- Air Max 1 Toronto and equilibrium hydrogen is measured simultaneously with the absolute vapour pressure of normal hydrogen. Different equat...

A laboratory slope drainage model is constructed in order to test results obtained by Hewlett and Hibbert who have suggested unsaturated flow to be the dominant flow mechanism at the later stages of drainage. The results from the model,...

A new class of distributive partitioning sort algorithms is proposed, in which the number of subgroups in each distributing pass is determined by the key range rather than by the number of elements. It is proven that in various cases th...

1.1. Western Grey Kangaroos generally inhabit more arid and hotter regions than Eastern Greys.2.2. Ears from Western Greys are significantly thinner, less furred and have smaller, thinner hairs than those from Eastern Grays.3.3. Ears ma...