The method of juxtaposition is modified in the construction of mixed orthogonal arrays. Many new orthogonal arrays can be obtained by the modified method. Some of them have run size 100 or less.

Most duplicate genes are eliminated from a genome shortly after duplication, but those that remain are an important source of biochemical diversity. Much of their diversification arises via functional ÒspecializationÓ, loss of some functions of the duplicates remaining in the genome. I here...

The concept of interconnection is fundamental to the modelling of discrete, physical systems. On the basis of centuries of scientific experience, everyone will agree that the concept is part of a logically consistent approach, permitting us to draw conclusions, verifiable by observation, from...

This article announces the availability of patented technology and production equipment for the manufacture of thin-film CdTe photovoltaic (PV) modules capable of providing utility scale power. It further discusses ongoing R&D, for the period 2000–2010, which will produce PV power at costs...

Several groups working in the photovoltaic field believe that the monitoring is a useful way for the development of this form of energy. In order to learn about Algerian experiences and to make progress towards a shared goal, some photovoltaic installations are provided with monitoring systems.

Periodic arrays of discharge tubes placed directly against each other were used to produce a plasma layer reflecting and absorbing electromagnetic waves. Reflection, transmission and absorption factors of normally incident waves were studied both theoretically and experimentally for these arrays...