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A model and a sound and complete proof system for networks of processes in which component processes communicate exclusively through messages is given. The model, an extension of the trace model, can describe both synchronous and asynchronous networks. The proof system uses temporal-logic assertions on sequences of observations — a generalization of(More)
We have recently developed a prototype hardware implementation of membrane computing based on reconfigurable computing technology called Reconfig-P. The existing hardware design treats reaction rules as the primary computational entities and represents regions only implicitly. In this paper, we present an alternative hardware design that more directly(More)
Since the introduction of Smalltalk, the object-oriented paradigm has become a popular technique for the organization of data and programs. In this paradigm, objects (collections of data and programs) are organized in a class hierarchy. These classes collect similar objects and serve as a repository for methods (programs) shared by those objects. We present(More)
—We introduce the Harmonic Path (HAPA) algorithm for estimation of heart rate (HR) and respiration rate (RR) with Impulse Radio Ultrawideband (IR–UWB) radar. A well known result is that a periodic movement, such as the lung wall or heart wall movement, induces a fundamental frequency and its harmonics. IR–UWB enables capture of these spectral components and(More)
— We design network topologies and routing strategies which optimize several measures simultaneously: low cost, small routing diameter , bounded degree and low congestion. This set of design issues is broader than traditional network design and hence, our work is useful and relevant to a set of traditional and emerging design problems. Surprisingly, a(More)
Membrane computing investigates models of computation inspired by certain features of biological cells. To exploit the performance advantage of the large-scale parallelism of membrane computing models, it is necessary to execute them on a parallel computing platform. However, it is an open question whether it is feasible to develop a parallel computing(More)