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Responses of a novel passive neutron area monitor, named CubBonner, were calculated. The responses were estimated for sixty monoenergetic neutrons, from 10−9 to 20 MeV, with the MCNP5 code. The CubBonner is a cubic polyethylene moderator and a gold foil as thermal neutron detector. The ambient dose equivalent response was calculated for three cubes (5″, 8″ and 10” side) with the gold foil at the cube's centers. The moderator cube having the best ambient dose equivalent response was used to estimate the neutron fluence and the 197Au(n,γ) responses per history. The ambient dose response per unit mass of gold was compared with the response of the Berthold LB 6411 active neutron area monitor, and the response for the (n,γ) reaction in the gold foil was compared with the evaporation photo neutrons produced in linear accelerators for radiotherapy.

In our previous work, we proposed an approach that consists in using feature extraction to reduce the magnetic-field signal data to generate a signature, which can be used to estimate the user location in an indoor environment. Each signature contains 10 seconds of magnetic-field data. In this paper, we investigate whether by reducing the time signature length decrease or not the accuracy of the indoor location system (ILS). In order to find out, we perform experiments in two indoor environments: an office building and a residential home. In both environments, we collect information of the magnetic-field and we variate the fingerprint length in 0.1, 1, 2, 5 and 10 seconds, to verify whether its length affects the accuracy of the ILS Model. The results indicate that signature length is an important issue to be considered in the development of the ILS, since it does affect the accuracy of the system.

Multicast routing is employed whenever data needs to be delivered from a single source to a group of receivers, in this way, the source can transmit a single flow of data packets which are subsequently delivered to a group of receiver nodes. As a result, multicast routing protocols are extensively used in computer networks, as these techniques allow applications to be able to save bandwidth and reduce the traffic load in the network. In relation to multicast protocols, most of them have been designed for use in wired networks, such as the Internet; similarly, some multicast protocols have been proposed for wireless environments, like wireless ad hoc networks, however they usually deal with the transmission of multicast traffic within the wireless network and do not address those issues related to the interoperability between wired and wireless networks. Nowadays, wireless mobile devices have a large demand of multiple services from the Internet, thus resulting in a need to extend some of the readily available services to wireless network while providing the same level of performance and reliability. This work presents an approach to integrate a wireless ad hoc network with a wired network, while supporting the interoperability of multicast services between the wired network and the wireless ad hoc network. As a result, the multicast traffic generated within the wired network can reach clients located in the wireless ad hoc network.