A type of transformation media called α media is proposed by performing a direct transformation to the metric tensor of another kind of media, called seed media. Light rays in an α medium correlate to those in its seed medium through a simple displacement or rotation relation. Three types of commonly encountered anisotropic media are covered by the concept of α media: (1) media of slab shape, h...

LLE Review, Volume 78 97 Laser-fusion experiments require precise control of the temporal profile of optical pulses applied to targets. An optical pulse– shaping system has been in operation on OMEGA for several years.1 During this time the demands on the precision, flexibility, and repeatability of the optical pulse–shaping system have steadily increased. To meet these new demands, a new pulse...

protection and the prevention of illegal departures national grape germplasm, as one of the most important assets of the country, requires identification of the commercial and native cultivars and registered them in the international centers. the present project was conducted in order to registration the most important grape cultivars of iran based on morphological and physiological traits in t...

This paper describes a hybrid least squares stereo matching and feature detection approach for the accurate metric recovery of 3-D facial shape and shape change. We have incorporated an active shape model to enable a priori image segmentation, facilitate adaptive window stereo matching and to locate seed point correspondences on which full field disparity estimates can be reliably initialised. ...

In terms of conceptual structures theory, the objective of our project is the development of a pattern directed inference systemm7]. It is to operate over conceptual graph terms extended to express constraints on the referent values, and the matching mechanism is to combine order sorted uniication with the action of a constraint solver. This combination leverages type representation technology ...

the water relations play a fundamental role in seed comprehension of biology. in order to describe the process of drying and the effect on water activity, which controls biological change in storage, a sound knowledge of the relationship between equilibrium moisture content (emc) and water activity/equilibrium relative humidity (erh) is essential. the relationship between the total moisture con...

Both biotic and abiotic environmental filters drive the occurrence, distribution, persistence of plant species. Amongst drivers that influence distribution plants in harsh environments, seed predation temperature are particularly important habitats prone to fire. In this study, we highlight combined effects high simulating fire understand its on germination percentage speed species Copaifera ob...