نتایج جستجو برای: gravel mixture

تعداد نتایج: 97190  

2017
K J. Woolfe James Cook L K. Stewart Christopher R. Fielding M Lavelle

Gravel-free, high-resolution (1-metre spacing, 32 channel) particle size data from the CRP-2/2A drill core indicate that many of the diamictites were likely deposited from floating ice. Textural dislocations occur at most sequence boundaries and provide independent corroboration of the sequence stratigraphic interpretation. Likewise the data largely support the correlation drawn (Fielding et al...

2005
Edward J. Anthony Jinsheng Wang

Pilot plant studies were carried out to evaluate the feasibility of remediation of coal tarcontaminated soil and oil-contaminated gravel by incineration with environmentally acceptable performance. In addition to adequate decontamination and emission control, effort was devoted to treating the special feedstocks with difficult handling properties by use of conventional combustion and feeding sy...

Journal: :E3S web of conferences 2023

Shear-thinning is a common flow-feature of fine sediment suspensions. Mixed with gravel, Coulomb friction drives the energy dissipation between small grains while collisions become more and important larger grains. The interaction flow local geometries channel can enforce each these three key features, making design analysis sections obstacles highly back-coupled system. This paper addresses nu...

2014
Anja Schmithals Norbert Kühn Anil Shrestha

North American prairie vegetation has been a role model for designing highly attractive plantings for German urban green spaces for the past decade. In combination with gravel mulch top layers on planting sites and non-selective maintenance techniques like mowing or burning, prairie plantings are considered to be cost-effective and low-maintenance. This study was undertaken to assess the impact...

2012
D. W. Burbank R. A. Beck

The use of gravels as syntectonic indicators of thrusting has recently been questioned by foreland-basin models that assign gravels to a post-thrusting interval of progradation, except in very proximal areas. On the basis of precise temporal control provided by magnetostratigraphically dated sections, the history of gravel progradation after a major thrusting and uplift event in the northwester...

Journal: :Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 2012

ژورنال: آبخیزداری ایران 2020

       In this study, the possibility of using a combination of gravel filters with plastic cover to increase water infiltration and soil moisture storage in rainwater catchment systems was investigated. For this purpose, five treatments (with three replications) including control treatment, vegetation removal with filter, vegetation removal without filter, semi-insulated system with filter, an...

2016
Tian Y. Dong Jeffrey A. Nittrouer Elena Il’icheva Maksim Pavlov Brandon McElroy Matthew J. Czapiga Hongbo Ma Gary Parker

The Selenga River Delta, Lake Baikal, Russia, is ~600 km2 in size and contains multiple distributary channels that receive varying amounts of water and sediment discharge. The delta is positioned along the deep-water (~1600 m) margin of Lake Baikal, a half-graben–styled rift basin, qualifying it as a modern analogue of a shelf-edge delta system. This study provides a detailed field survey of ch...

2009
Megat M. Noor

The last few decades witnessed sharp focus on environment pollution and its impact on life in nature. Wetlands can be used for biological treatment of wastewater. Problem statement: Scarcity of water is considered as a global problem and Iran is one the countries which is facing water shortage problem. Pollution of water bodies restrict the availability of water for various uses. Treatment of w...

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