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Resource contention is a major concern in Optical Burst Switching networks that leads to relatively high burst loss probability. This article presents a clustered architecture for OBS networks, called Cooperative Clustered Optical Burst Switching (C2OBS) network architecture. In this architecture, the network is divided in overlapping zones/clusters with a zone/cluster head having the knowledge of...
This paper presents a performance evaluation of a multiband-orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) signal transmission over two types of perfluorinated graded-index polymer optical fibers (PF-GI-POFs) with diameters of 62.5 μm and 120 μm, using a low-cost optical transceiver. Experimental measurements of packet error rate (PER) and minimum transmitted powers to achieve...
Large scale energy conversion processes, like refineries and power plant are often located in a harbor industrial cluster. They heavily rely upon a single type of energy carrier and thus are vulnerable to price and availability variations. In the article we introduce the multi-fuel syngas infrastructure. It comprises fuel flexible gasifiers, a gas distribution network and syngas conversion processes...
Current web-service composition languages, such as BPEL, provide inferior support for transaction management. Consequently, specifications written in these languages are needlessly complex and hard to reuse. Furthermore, the languages themselves are not transactionally extensible, making them hard to adapt to support new forms of web service composition. Using a unified mechanism for dealing with...
This article presents a framework that allows the automated gathering of medical evidence, using a methodology based on Bayesian networks (BN). For such purpose, system software and a programming methodology were developed. The proposed methodology is generic and can be applied to different contexts (application domains) were evidence gathering is executed in mobile devices.
Due to their reduced size, cost, and power requirements relative to traditional gyroscopes, MEMS gyroscopic sensors are finding increasing use in many applications. It is well known that unshielded MEMS gyroscopes can be vulnerable to both mechanical shock and high frequency vibrations. The results of this investigation indicate that MEMS gyroscopes are also susceptible to high power, high frequency...
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