Results 21 to 30 of about 612,434 (304)
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012 River history is reflected in the nature of the sediments carried and deposited over time. Using examples drawn from around the world, this account illustrates how river sediments have been used to reconstruct past environmental changes at a variety of scales in time and space. Problems arising from a patchy alluvial record and from influences external
openaire +3 more sources
An experimental study of particle sedimentation using ultrasonic speckle velocimetry [PDF]
, 2010 Ultrasonic speckle velocimetry (USV) is a non-invasive technique that allows the measurement of fluid velocity in flow and also that of powders under sedimentation.
Chinaud, Maxime +2 more
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Faunal response to benthic and hyporheic sedimentation varies with direction of vertical hydrological exchange [PDF]
, 2014 1. Sedimentation and clogging of benthic and hyporheic zone substrates is increasingly being recognised as one of the greatest threats to the ecological integrity of riverine ecosystems globally. This ex-situ study examined the influence of sedimentation
Bo +58 more
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Contaminated Aquatic Sediments [PDF]
Water Environment Research, 2007 A review of the literature published in 2014 relating to the assessment, evaluation and remediation of contaminated aquatic sediments is presented. The review is divided into the following sections: policy and guidance, methodology, distribution, fate and transport, bioavailability, bioaccumulation, risk, toxicity and remediation.
openaire +9 more sources
Concentration Dependen Sedimentation of Collidal Rods
, 2000 In the first part of this paper, an approximate theory is developed for the leading order concentration dependence of the sedimentation coefficient for rod-like colloids/polymers/macromolecules.
Dhont, J. K. G. +3 more
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Characterization and evolution of the sediments of a Mediterranean coastal lagoon located next to a former mining area [PDF]
, 2015 Coastal lagoons are ecosystems that are relatively enclosed water bodies under the influence of both the terrestrial and themarine environment, being vulnerable to human impacts.
García Fernández, Gregorio +1 more
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The impact of tillage row orientation on physical and chemical sediment enrichment
Agrosystems, Geosciences & Environment, 2020 This study aimed to better understand how tillage row orientation with respect to dominant flow‐pathway along hillslope impacts runoff and the transport of different sediment size fractions. Experimental plots were constructed in contour ridge till (CRT)
Kenneth M. Wacha +7 more
doaj +1 more source
Frontiers in Marine Science, 2023 Sedimentation is an important mechanism to mitigate the shrinking of tidal flat and to restore its ecological function by means of sand or mud nourishment.
Qi Shen +7 more
doaj +1 more source
Effect of Standing Water on Formation of Fan‐Shaped Sedimentary Deposits at Hypanis Valles, Mars
Geophysical Research Letters, 2023 Fan‐shaped sedimentary deposits are key indicators of paleoclimate on Mars. The largest example, a multi‐lobed deposit (>1,000 km2) at the outlet of Hypanis Valles, may have formed either subaerially or at the edge of a water body.
Ajay B. Limaye +4 more
doaj +1 more source
Analitic Investigation of the Regularities of Changing Dust Concentration During the Abrasive Decrease of Stone Structures [PDF]
, 2018 In the process of repair or restoration of building structures, it is often necessary to strengthen building structures from limestone-shell rock, concrete, reinforced concrete, hard materials-granite, basalt, etc.
Bezpalova, A. (Alla) +2 more
core +2 more sources