Avionics Full DupleX (AFDX) is an aeronautic-specific switched Ethernet technology that provides data exchanges among avionics sub-systems with bounded latencies, without requiring the sub-systems to share a common global clock like in TDMA networks. These predictable latencies can be achieved because the workload submitted to the network by each sub-system is upper bounded and known in advance...

The Network Calculus (NC) [5] is an established theory for determining bounds on message delays and for dimensioning buffers in the design of networks for embedded systems. It is supported by academic and industrial tool sets and has been used, among many other applications, in the design and certification of the Airbus A380 AFDX backbone [1, 3, 4]. However, while the theory of NC is generally ...

Hava araçları tasarımında kablo ve ekipman ağırlığının azaltılması önemli bir gereksinim kriteridir. Gelişen teknoloji ihtiyaçlar doğrultusunda hava sistem mimarisi federe yapıdan modüler yapıya evirilerek ağırlığına çözüm bulmasına karşın etkin getirememiştir. Bu maksatla verilerin ihtiyaç duyulduğu yerde işlemlerin gerçekleştirilmesine dayalı fakat kablaj ağırlığı getirmeyecek yapının tesisin...

PURPOSE The bradycardia produced by pyridostigmine and physostigmine in an animal model of acute cardiac denervation was examined according to its relation to cholinesterase inhibition and sensitivity to block by cholinergic receptor antagonists. METHODS Cats were anaesthetised, vagotomised and propranolol-treated. Heart rate was continuously recorded. Erythrocyte cholinesterase activity of a...