Gradient-Modulated PETRA MRI

Modulated Intensity Gradient and Texture Gradient Based Image Segmentation

Image segmentation is currently a prominent topic for both military and commercial researchers. This paper concentrates on the image segmentation based on the combination of modulated intensity gradient and texture gradient. Image segmentation is an integral part of image analysis. In image processing different processes are done on images to enhance it at different parameters. These processes ...

Petra Gemeinboeck

The electro-magnetic flows of information and mobile technologies pervading our everyday life are often said to be spinning such “filigree cities.” Cities, whose “opaque and fictitious thickness” can only be accessed if we co-inhabit these invisible spaces. And yet, this city is only one of the multiple cities, invisible and visible, we inhabit in our everyday life. The imbrication of these mul...

Charge gradient effects on modulated dust lattice wave packets in dusty plasma crystals

  Nonlinear Dust lattice modes are studied in a hexagonal two-dimensional dusty plasma lattice, in presence of charge gradient of dust particles. In this lattice, such gradients affect nonlinear behavior of dust lattice waves. The amplitude modulation of off-plane transverse dust lattice wave packets is investigated considering the anisotropy of interactions, caused by the height-dependent char...

Petra Schweinhardt , Khara

Review of Petra Barg (1996)

Given current interest in linguistic knowledge acquisition methods (or 'discovery procedures' in the linguistics jargon of the 1950s and 1960s), Petra Barg's book "The automatic acquisition of linguistic knowledge" 1 is a welcome addition to the literature, particularly since it is the first investigation 2 into the automatic inference of structured analyses of linguistic data in the DATR forma...