نتایج جستجو برای: clayey

تعداد نتایج: 1462  

Journal: :Revista do Instituto de Medicina Tropical de Sao Paulo 2008
Pedro Paulo Chieffi Maisa Leite de Queiroz Fernanda Mehlmann Maria Aparecida Paschoalotti Susana Angelica Zevallos Lescano

Human infections by Toxocara canis or Toxocara cati larvae are frequent and have a cosmopolitan distribution resulting, sometimes, in the occurrence of visceral larva migrans syndrome. Ingestion of embryonated Toxocara eggs, present in the superficial layers of the soil, represents the most important way for human infection by these ascarids. Therefore, contact with contaminated soil is conside...

Journal: :Environmental science & technology 2007
J Hønning M M Broholm P L Bjerg

The effect of in situ chemical oxidation (ISCO) with permanganate (MnO4-) on tetrachloroethene (PCE) in a dual permeability system consisting of low permeability clay with high permeability sand lenses was investigated by two-dimensional laboratory experiments. The experiments imitate a field remediation at a former dry cleaning facility in Denmark. Results from laboratory experiments and field...

2017
Jean Sulem

Within the frame of the ‘CRL’ (Corinth Rift Laboratory project) (Cornet et al, 2004a) centered on the south western sector of the Gulf of Corinth (http://www.corinth-rift-lab.org), fault zone cores from the active Aigion fault have been collected continuously from depths between 708 m to 782 m. Inside this clayey core, a clear shearing surface with marked slip lines is visible on a plane that m...

Journal: :Journal of water and health 2009
Sylvain Skraber Jack Schijven Ronald Italiaander Ana Maria de Roda Husman

Our study aimed to assess the accumulation of bacteriophages in sandy and clayey fresh water sediments. All of the 24 natural fresh water sediments were positive for somatic and F-specific phages, though their concentrations in the overlying water were undetectable in 1 and 11 samples, respectively, out of 24, corresponding to 4 and 46% for somatic and F-specific phages, respectively. Based on ...

2006
Yasser Hamed Mohamed El-kiki Ronny Berndtsson Soheir Kamel

Soil permeability and soil salinity are considered the most important elements affecting agriculture in arid areas. To analyze and visualize solute transport and soil salinity distribution mechanisms, dye tracer and an electromagnetic device (W.E.T Probe) were used. The purpose of this study is to investigate the effect of separate clayey patches (spots) exist in loamy sand soil on both of soil...

2013
Hamid Reza Koohpeyma Amir Hossein Vakili Hossein Moayedi Alireza Panjsetooni Ramli Nazir

Internal erosion is known as the most important cause of dam failure after overtopping. It is important to improve the erosion resistance of the erodible soil by selecting an effective technique along with the reasonable costs. To prevent internal erosion of embankment dams the use of chemical stabilizers that reduce the soil erodibility potential is highly recommended. In the present study, a ...

2017
Mehdi Jalili Mahmoud Nikkhah Shahmirzadi Mahdi Kaseb Hazrati Hamed Ahmadi

Liquids coming from different sources like wastewaters, agricultural and industrial activities and leakages of chemical substances often have high concentration of chemical compositions and the osmotic gradient generated around such sources causes a considerable transmission of the Contamination. The steam transmitted by non-polluted soils moves to polluted masses, causing an increase in the vo...

2003
YUNUS DOGAN SULEYMAN BASLAR HALIL AYDIN HASAN HUSEYIN MERT

This study was undertaken with the aim of illuminating the soil-plant interactions of Pistacia lentiscus L., which is a Mediterranean sclerophylleous coastal zone plant in the Western Anatolian part of Turkey. The soil analysis data showed that this plant grows on different kinds of soils such as sandy-clayey-loam, clayey-loam, sandy-loam and loamy texture. Soils are not saline, with pH moderat...

2013
Michaël A. Leblanc Léon E. Parent Gilles Gagné

High-organic (mucky) mineral soils make a small proportion of the Canadian agricultural land but are highly productive, especially for organic farming. Although these high-quality soils may release large amounts of nitrate and phosphate to the environment, there is yet no reliable agro-environmental indicator for managing N and P compared to the adjacent mineral and organic soils. Our objective...

2013
Md. Bellal Hossain Md. Zakaria Hossain Toshinori Sakai

Characterization of a geosynthetic is necessary for its effective use in various field application of reinforced soil structure. In this paper, a new type of geosynthetic has been evaluated for its interaction properties for different backfill soils using direct shear device. The test results are compared based on the type of soils, inclusions, and interface mechanical properties. Three backfil...

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