Most cities in the Amazon have no data communication infrastructure, and rivers are most of the time the only access mode to connect small cities to urban centers. In this paper, we investigate the deployment of vehicular ad hoc networks (VANETs) formed by boats along the rivers of the Amazon as an alternative to interconnect the small cities to the capital Manaus. Given that boats will opportu...

In her article "Contemporary US-American Satire and Consumerism (Crews, Coupland, Palahniuk)" J.C. Lee focuses on contemporary satire's potential (or lack thereof) for change, reform, or rebellion through an investigation of works by Harry Crews, Douglas Coupland, and Chuck Palahniuk, all of which target consumerism. The said writers employ satire not to initiate rebellion or cultural change, b...

Despite the recent interest in scenarios, the development of new methods and tools for Requirements Engineering integrating scenario based approaches has been limited. This paper reports on four different processes developed from research undertaken as part of the CREWS project which the authors believe will improve scenario use and make it more systematic. Furthermore CREWS aims to integrate t...

Use cases are a widely used technique for requirements specification as part of the Unified Modelling Language (UML). However, use cases rely predominantly upon natural language. For this reason, the CREWS research group has proposed guidelines to assist in writing use cases. Various research groups, including ourselves, have found that writing guidelines (CREWS) help. However, our experience w...

There is only limited knowledge of the exposure to vibrations of ships' crews and their risk of vibration-induced health effects. Exposure to hand-arm vibrations from the use of vibrating tools at sea does not differ from that in the land-based trades. However, in contrast to most other work places, seafarers are also exposed to vibrations to the feet when standing on vibrating surfaces on boar...

the present work is the successful extension of an improved equation of state (eos) to refrigerant fluids. the objective is the prediction of isothermal and saturated liquid densities of refrigerants. two temperature-independent parameters appearing in the modified eos are closely related to critical point properties of refrigerant fluids. our results showed that, the proposed eos can predict w...

There are many challenges associated with the integration of synthetic and real imagery. One particularly difficult problem is the automatic extraction of salient parameters of natural phenomena in real video footage for subsequent application to synthetic objects. Can we ensure that the hair and clothing of a synthetic actor placed in a meadow of swaying grass will move consistently with the w...