نتایج جستجو برای: homogeneous earth dam

تعداد نتایج: 175193  

2016
Wendy Fisher Tracy Camp Valeria V. Krzhizhanovskaya

We investigate techniques for earth dam and levee health monitoring and automatic detection of anomalous events in passive seismic data. We have developed a novel data-driven workflow that uses machine learning and geophysical data collected from sensors located on the surface of the levee to identify internal erosion events. In this paper, we describe our research experiments with binary and o...

Journal: :Water 2022

Polymer anti-seepage walls have been widely used in the reinforcement projects of earth dams. Dam crest is always supposed to meet requirements traffic load which has significant influence on dam body and wall. In order analyze coordination characteristics deformation between polymer wall under loads, a 3D finite element model an that considers coupling effect seepage field stress was establish...

2012
Rakhshan Roohi John Webb

With the continuing pressure on Australia’s water resources and interand intra-annual rainfall variability, farmers, especially in rainfed agricultural and pastoral zones, have been developing farm dams as a mean of providing additional water sources for irrigation and stock. The density of farm dams has increased over time, and an accurate knowledge of the spatial distribution of farm dams is ...

Journal: :Clinical chemistry 1993
G Mathis

The rare earth cryptates are used as long-lived fluorescent labels. They are formed by inclusion of a europium ion in the intramolecular cavity of a macropolycyclic ligand containing bipyridine groups as light absorbers. The use of fluoride ions in the measuring medium allows a total shielding of the label fluorescence. Here, I have established the conditions under which the signal of these cry...

هاشمی, سید علی اصغر , عرب خدری, محمود ,

  In order to quantitatively evaluate the sediment yield in ungauged basins, it is necessary to use empirical models. The EPM model, as a model which is using in Iran, has sometimes been evaluated. Most evaluations have often been conducted by using river's sediment information and direct measurements of dam reservoir sedimentation have been less used, while the sediment measurement method on r...

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