If a finite element mesh has a sufficiently regular structure, it is easy to decide in advance how to distribute the mesh among the processors of a distributed-memory parallel processor, but if the mesh is unstructured, the problem becomes much more difficult. The distribution should be made so that each processor has approximately equal work to do, and such that communication overhead is minim...

This paper presents the design and evaluation of a highly scalable, decentralized and self-organizing peer-topeer network architecture based on the multi-mesh topology. Our network automatically adapts to dynamic node arrivals, departures and failures. Each node maintains a fixed set of neighbor connections, regardless of the size of the network. This demonstrates the scalability of the network...

Wireless mesh networks (WMNs) are attractively deployed as a backhaul for public Internet access with the advantages of network performance and cost efficiency. With the cooperation of multiple mesh nodes, a packet is transmitted through multi-hops to reach a destination. Wireless medium experiences relatively an unstable environment due to interferences of wireless signals. As traffic increase...

Traffic routing plays a critical role in determining the performance of a wireless mesh network. Recent research results usually fall into two ends of the spectrum. On one end are the heuristic routing algorithms, which are highly adaptive to the dynamic environments of wireless networks yet lack the analytical properties of how well the network performs globally. On the other end are the optim...

The addition of positively charged, 30 nm diameter silica nanoparticles to cationic wormlike micellar solutions of cetyltrimethylammonium bromide and sodium nitrate is studied using a combination of rheology, small angle neutron scattering, dynamic light scattering, and cryo-transmission electron microscopy. The mixtures are single phase up to particle volume fractions of 1%. The addition of li...

An output-based dynamic order re nement strategy is presented for unsteady simulations using the discontinuous Galerkin nite element method in space and time. A discrete unsteady adjoint solution provides scalar output error estimates and drives adaptive re nement of the space-time mesh. Space-time anisotropy is measured using projection of the adjoint onto semi-re ned spaces and is used to all...

In a large dynamic network, data can be copied anywhere to make it fault tolerant and easy accessed but there must be an efficient protocol to manage the replicas and make sure the data is consistent and high in availability with a low communication cost. In this paper, we introduced a new protocol, named Diagonal Replication in Mesh (DRM) for data replica control protocol for a large dynamic n...

An output-based dynamic order re nement strategy is presented for unsteady simulations using the discontinuous Galerkin nite element method in space and time. A discrete unsteady adjoint solution provides scalar output error estimates and drives adaptive re nement of the space-time mesh. Space-time anisotropy is measured using projection of the adjoint onto semi-re ned spaces and is used to all...

A dynamic model of multiple-stage planetary gear train composed of a two-stage planetary gear train and a one-stage parallel axis gear is proposed to be used in wind driven generator to analyze the influence of revolution speed and mesh error on dynamic load sharing characteristic based on the lumped parameter theory. Dynamic equation of the model is solved using numerical method to analyze the...