Sandstone tempestite beds in the Starshot Formation, central Transantarctic Mountains, were deposited in a range of shoreline to shelf environments. Detailed sedimentological analysis indicates that these beds were largely deposited by wave-modified turbidity currents. These currents are types of combined flows in which storm-generated waves overprint flows driven by excess-weight forces. The i...

We describe a flume study of the spatio-temporal evolution of particulate gravity currents. Time series of the vertical structure of flow in terms of the forward component of velocity, flow concentration and grain-size of suspended sediment were co-measured at a different position along the flume for each of a series of nominally identical flows. The data are combined to show the spatial evolut...

The use of roller compacted concrete (R.C.C) without conventional cover in important hydraulic structures is investigated through laboratory observation of abrasion phenomena sujected to high velocity flow and floating particles. The main parameters affecting abrasion and erosion resistance of R.C.C. studied in the present study include: Mixed Hydraulic Mean Radius (which collectively repres...

The relation between universality and temporal and spatial scaling of structurefunctions and moments of the coarse-grained energy dissipation in turbulence is studied for flows where the Taylor Frozen Flow Hypothesis holds exactly. To account for observed deviations from a strict scaling law, we conclude that non-constant scaling exponents depend on the mean flow U . Furthermore, spatial and te...

This paper describes a programmable switch architecture that can be dynamically tuned to support flexible quality of service metrics for flows in the Internet. The switch architecture consists of six key components: scheduling, flow aggregation, queueing, packet-level admission control, packet dropping, and feedback. We show that it is possible to achieve a wide range of QoS behavior ranging fr...

The risk of data leakage from users’ Web browsers to external servers has increased due to the prevalence of Software as a Service (SaaS). Such data leakage is difficult to prevent because 1) traditional firewalls cannot be used to prevent leakage without sacrificing usability, 2) coarse-grained approaches cannot distinguish data flows between trusted SaaS providers and non-trusted services, an...