A Plane's Position

A Cephalometric Study of Various Horizontal Reference Planes in Natural Head Position

Various intra and extracranial cephalometric horizontal reference planes have been used to formulate diagnosis and plan individualized treatment for an integrated correction of the malocclusion. Aim: The aim of this study was to evaluate variability of intracranial reference planes, i.e sella-nasion, basion-nasion, Frankfurt horizontal, functional occlusal, mandibular and maxillary-mandibular b...

Analysis of complexity measures and information planes of selected molecules in position and momentum spaces.

The Fisher-Shannon and LMC shape complexities and the Shannon-disequilibrium, Fisher-Shannon and Fisher-disequilibrium information planes, which consist of two localization-delocalization factors, are computed in both position and momentum spaces for the one-particle densities of 90 selected molecules of various chemical types, at the CISD/6-311++G(3df,2p) level of theory. We found that while t...

A family of translation planes

An infinite family of non-Desarguesian translation planes of order q with kernel GF(q) is constructed, for any odd prime power q. The collineation group of each plane has orbits of lengths 1, q, and q − q on the translation line. The method used for the construction is net replacement, starting from a Dickson-Knuth semifield plane. The planes are constructed via spreads and the spreads via spre...

Pixel-Planes 4: A Summary

We describe the current state of the Pixel-planes research project, whose goal is to develop powerful raster graphics systems for the next generation of workstations, The first full-scale prototype has been in regular use in our department's computer graphics laboratory since its first demonstration at SIG­ GRAPH '86, more than a year ago, We describe the final hardware configuration of the pro...

A Class of Projective Planes