In wireless sensor networks, secure data aggregation protocols target the two major objectives, namely, security and en route aggregation. Although en route aggregation of reverse multi-cast traffic improves energy efficiency, it becomes a hindrance to end-to-end security. Concealed data aggregation protocols aim to preserve the end-to-end privacy of sensor readings while performing en route ag...

The current development of global economies and societies is regarded as being highly unsustainable. This paper analyses the current situation. Instead of simplistic metrics that take only snapshots of the life-cycle of a product into consideration, an approach is introduced that covers the whole supply chain. The core idea is that end-to-end transparency, specific data models, a process archit...

This is the era of big-data: high-volume, high-velocity and high-variety information assets are being collected, demanding cost-effective information processing. Analytic techniques primarily based on statistical methods are showing astonishing results, but exhibit also limited reasoning capabilities. On the other end of the spectrum the era of bigreasoning is emerging with next-generation cogn...

EEective detection of failures is essential for reliable communication services. Traditionally , non-real-time computer networks have relied on behavior-based techniques for detecting communication failures. That is, each node uses heartbeats to detect the failure of its neighbors , and the end-to-end transport protocol (e.g., TCP) achieves reliable communication by acknowledgment/retransmissio...

closed-end furrows are commonly used to irrigate crop in northern part of china. the irrigation performance of furrow in this area is often low. the objectives of this paper are to verify reliability of infiltration parameters and manning roughness estimated with sipar_id software and present an optimized method for design of closed-end furrow system. the study consisted of field experiments an...