In optical WDM networks, since each lightpath can carry a huge mount of traffic, failures may seriously damage the end-user applications. Hence fault-tolerance becomes an important issue on these networks. The light path which carries traffic during normal operation is called as primary path. The traffic is rerouted on a backup path in case of a failure. In this paper we propose to design a rel...

Abstract Additive manufacturing offers a high degree of design freedom. When Design for Manufacturing is conducted properly, lightweight potential can be exploited. This contribution introduces novel approach the widespread fused layer modelling (FLM) technology when using orthotropic Fibre Reinforced Polymer filament. Its objective to obtain stiff and strong load-path optimized FLM structures ...

The present study is devoted to investigation of spur gears with a conchoidal path contact and convex-convex between teeth. load capacity energy efficiency were evaluated using both theoretical experimental approaches. analysis showed that the gear pairs are 5–21% stronger in terms stress have similar as compared involute same configuration. Experiments conducted on test rig. Its was determined...

Dynamic routing in WDM (Wavelength Division Multiplexing) networks is achieving increasing interest due to the expected traffic growth for future optical networks. This contribution concentrates on network performance issues occurring for network operation under dynamic traffic load. In this context, routing strategies play a central role. We show that a new strategy achieves very good performa...

Given the fact that more than half of the world lacks a wired network infrastructure, satellite networks are seen as an important alternative to achieve global coverage. Since most of the world population lives around the equator or in middle-latitude regions, satellite constellations have to deal with different communication requirements from different regions. The traffic requirements become ...