منابع مشابه
River Flow
This chapter presents a range of key concepts that enable natural rivers to be understood as complex flows of water and sediment that interact and often result in changes to the channel shape. The implications for salmon fisheries and invertebrates are also considered. Rivers are linear features and so it might be supposed that the flow hydraulics would be unidirectional and relatively simple t...
متن کاملRiver Flow Model of Diseases
This article discusses the ontological treatment of diseases in the framework of the Ontology for General Medical Science (OGMS). We aim to provide a definition of a disease that is more friendly to clinicians and propose a corresponding model of diseases. We define a disease as a dependent continuant constituted of one or more causal chains of clinical disorders. To clarify the ontological mea...
متن کاملResilience of river flow regimes.
Landscape and climate alterations foreshadow global-scale shifts of river flow regimes. However, a theory that identifies the range of foreseen impacts on streamflows resulting from inhomogeneous forcings and sensitivity gradients across diverse regimes is lacking. Here, we derive a measurable index embedding climate and landscape attributes (the ratio of the mean interarrival of streamflow-pro...
متن کاملthe effects of changing roughness on the flow structure in the bends
flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
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ژورنال
عنوان ژورنال: Revista Portuguesa de Pneumologia
سال: 2011
ISSN: 0873-2159
DOI: 10.1016/j.rppneu.2011.06.012