In this work, we present a path-planning method for the Mobile Data Collector (MDC) in a wireless sensor network (WSN). In our method, a tour for the MDC is generated such that the latency of delivering data to the sink is reduced. We show that the TSP tour covers all the nodes of the WSN. However, the latency for the TSP tour may be prohibitively high for delay-sensitive real-time WSNs. We red...

During the last decades, Wireless Sensor Networks (WSNs) arises as an emerging and future enable technology due to the latest development in the field of wireless communication, computing and storage devices. Cluster based routing is an immense solution to enhance the energy efficiency of nodes in wireless sensor networks. In this paper we propose, simulate and authenticate Mobile Data Collecto...

UAV Data Mule Vehicle Routing Problems In Sparse Sensor Networks by Jason Tony Isaacs Recent advances in technology have enabled the use of wireless sensor networks for environmental monitoring and surveillance. Wireless sensor networks are particularly beneficial for monitoring environments that are unsuitable for human presence, such as those arising in the monitoring of permafrost, volcanos,...

This study examines modeling and simulation of the transient thermal behavior of a solar collector adsorber tube. The data used for model setup and validation were taken experimentally during the start-up procedure of a solar collector adsorber tube. ANN models are developed based on the nonlinear autoregressive with exogenous input NARX model and are implemented using the MATLAB® tools includi...

We show the difficulties that arise for the implementation of a real-time garbage collector in a multi-threaded system. A mechanism for synchronization between threads and the garbage collector activities is proposed for a single processor system. It is shown how this mechanism can be used to maintain exact information on roots, to implement efficient write-barriers, to do incremental or even c...

In the present work, a prototype of a new type of solar collectors, which called Direct Absorption Solar Collector, was built and its thermal performance is experimentally compared with conventional flat plate solar collector under transient and steady state conditions. Different volume fractions of multi wall carbon nanotubes in water and ethylene glycol mixture (70%:30% in volume) were used a...

The garbage collector presented in this paper makes use of two well known compaction garbage collection algorithms with very diierent performance characteristics: Cheney's two-space copying collector and Jon-ker's single-space sliding compaction collector. We propose a scheme which allows either collector to be used. The run-time memory requirements of the program being executed are used to det...

A sensor network is deployed to monitor and collect the information of environment. The common methods to organize sensors are the cluster and chain architecture. In the chain architecture, each sensor needs to report its gathered data and relay the data of its neighbours to the collector. The sensors which are close to the collector always exhaust their energy faster than the ones in the edge ...

in the present work, a prototype of a new type of solar collectors, which called direct absorption solar collector, was built and its thermal performance is experimentally compared with conventional flat plate solar collector under transient and steady state conditions. different volume fractions of multi wall carbon nanotubes in water and ethylene glycol mixture (70%:30% in volume) were used a...