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Un nanocomposite Nickel-Aluminium a été développé par un procédé conventionnel de métallurgie des poudres à l'aide de la réaction directe de la poudre d'aluminium et du chlorure de nickel pour déterminer ses propriétés mécaniques. A température ambiante, le composite était initialement sous forme de Al-Ni et après chauffage à 600ºC, la poudre composite forme Al3Ni et AlNi. Pendant le mélange de la poudre fine d'aluminium et de la solution de chlorure de nickel, une réaction exothermique importante s'est produite et le résultat est confirmé par la présence d'un pic...

Nickel-Aluminium-Nanokomposit wurde durch ein konventionelles pulvermetallurgisches Verfahren mit Hilfe einer direkten Reaktion von Aluminiumpulver und Nickelchlorid entwickelt, um seine mechanischen Eigenschaften zu bestimmen. Bei Raumtemperatur bildete der Verbundwerkstoff zunächst Al-Ni und nach Erhitzen auf 600ºC bildet das Verbundpulver Al3Ni und AlNi. Während der Vermischung von feinem Al-Pulver und Ni-Chloridlösung kam es zu einer großen exothermen Reaktion, was durch das Vorhandensein eines großen exothermen Peaks in der Differentialthermoanalysekurve bestätigt wird. Zu Beginn...

The latest in parallel EM solutions with both in-core and out-of-core solvers

The solution of complex electromagnetic (EM) problems requires one to address the issues related with numerical accuracy and efficient distribution of the solution procedure over multiple computational nodes. With the advent of multicore processors and high performance computing (HPC) technology, the EM software designers need to know how to add new functionality to computational EM codes so that they can run efficiently on these new processors.

Higher Order Basis Based Integral...

A step-by-step guide to parallelizing cem codes

The future of computational electromagnetics is changing drastically as the new generation of computer chips evolves from single-core to multi-core. The burden now falls on software programmers to revamp existing codes and add new functionality to enable computational codes to run efficiently on this new generation of multi-core CPUs. In this book, you'll learn everything you need to know to deal with multi-core advances in chip design by employing highly efficient parallel electromagnetic code. Focusing only on the Method of Moments (MoM),...

Important new insights into how various components and systems evolved

Premised on the idea that one cannot know a science without knowing its history, History of Wireless offers a lively new treatment that introduces previously unacknowledged pioneers and developments, setting a new standard for understanding the evolution of this important technology.

Starting with the background-magnetism, electricity, light, and Maxwell's Electromagnetic Theory-this book offers new insights into the initial theory and experimental exploration of wireless. In addition to the...

A valuable addition to the Wiley Series in Microwave and Optical Engineering
Today's modern wireless mobile communications depend on adaptive "smart" antennas to provide maximum range and clarity. With the recent explosive growth of wireless applications, smart antenna technology has achieved widespread commercial and military applications.
The only book available on the topic of adaptive antennas using digital technology, this text reflects the latest developments in smart antenna technology and offers timely information on fundamentals, as well as new adaptive techniques...