منابع مشابه
Directed Flood-Routing Framework
The Directed Flood-Routing Framework (DFRF) for wireless sensor networks that allows the rapid development of application specific routing protocols based on directed flooding is introduced in this paper. Flood-routing protocols are probabilistic methods that make only the best effort to route data packets. The presented family of protocols can route regular sized data packets via broadcast mes...
متن کاملFlood and debris flow interactions with roads promote the invasion of exotic plants along steep mountain streams, western Oregon
This study examines the interactions among geomorphic and biogeographic processes that govern the invasion by two contrasting exotic plant species—a shrub, scotch broom (Cytisus scoparius) and an herb, foxglove (Digitalis purpurea), over several decades of road and stream networks in the H.J. Andrews Experimental Forest in western Oregon. Distributions of C. scoparius and D. purpurea were mappe...
متن کاملflood routing and estimation of transmission losses in ephemeral streams by simultaneity solution of unsteady flowequations and infiltration
abstract due to transmission losses and lack of initial flow, flood routing in ephemeral streams is not possible with common methods and it is necessary the flood routing models have been developed for these streams. therefore in this study a computer model for natural river cross section has been developed in that after linearization of partial differential equations of unsteady none uniform f...
متن کاملPatch dynamics and stability in steep, rough streams
[1] The beds of steep streams are typically composed of relatively immobile boulders and more mobile patches of gravel and cobbles. Little is known about how variability in flow and sediment flux affect the area, thickness, composition, and grain mobility of sediment patches. To better understand patch dynamics, we measured flow, sediment transport, and bed properties in two steep channels. Pat...
متن کاملOptimum Routing of Multicast Streams
We show that the problem of optimally routing mul-ticast streams can be formulated as an integer programming problem. We propose an eecient solution technique , composed of two parts: (i) an extension to the decomposition principle, to speed up the linear relaxation of the problem, and (ii) enhanced value-xing rules, to prune the search space for the integer problem. We characterize the reducti...
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ژورنال
عنوان ژورنال: PROCEEDINGS OF THE JAPANESE CONFERENCE ON HYDRAULICS
سال: 1989
ISSN: 1884-9164,0913-4131
DOI: 10.2208/prohe1975.33.9