โ Scribed by A. Luque; G. Sala; J. C. Arboiro; T. Bruton; D. Cunningham; N. Mason
No coin nor oath required. For personal study only.
A photovoltaic concentration array prototype of 60 . 4 m 2 of aperture is described. It uses reยฏecting linear optics kept in focus by means of horizontal single-axis tracking. All its cells are connected in series so as to avoid laborious ยฎeld interconnection work. This prototype is being followed by a demonstration plant of 3479 m 2 of aperture.
The prototype performances are presented and ยฎtted to a model that allows their prediction under conditions dierent from those of measurement. On the basis of this model the demonstration plant performances are anticipated.
A cost analysis is presented based on our best estimates after the erection of the present prototype. It shows that the cost of the electricity, in medium or large size installation, should be strongly reduced with respect to that produced by ยฏat modules.
๐ SIMILAR VOLUMES
## Abstract This Note announces two results on the genus of a group. First, there is exactly one group of genus two, thus answering a question of V. K. Proulx. Second, the genus of the full symmetric group of degree __n__ is __n__!/168 + 1, for all __n__ > 167.
## SOME RESULTS ON THE STRUCTURE O F THE y-SPECTRUM by JERROLD M. GOLD in Northridge, California (U.S.A.) ## 81. Preliminaries and definitions In this paper we prove a result about the relationship between measurable and definable cardinals and also a result on the spectrum of infinite cardinals
Grieser, D., Some results on the complexity of families of sets, Discrete Mathematics 88 (1991) 179-192. Let 'Y be a property of graphs on a fixed n-element vertex set V. The complexity c(P) is the minimal number of edges whose existence in a previously unknown graph H has to be tested such that it