نتایج جستجو برای: silt

تعداد نتایج: 3108  

1997
Audrey Meyer Andy Fisher

Ocean Drilling Program (ODP) Leg 156 examined hydrological, geochemical, structural, and sedimentological processes at the toe of the northern Barbados accretionary prism (Shipley, Ogawa, Blum, et al., 1995). As part of this program, more than 400 samples were collected from Sites 948 and 949 for grain-size analysis. The primary objective of these analyses was to accurately determine weight per...

Journal: :IOP conference series 2023

Abstract Hydrometer method is the standard that normally used to determine fine particle size distributions for soil classification purposes. This study aims develop new enable quick determination of silt-clay distribution compared hydrometer requires procedure pretreatment and additional 24 hours required complete test. The various samples were collected from seven different locations includin...

Journal: :Environmental science & technology 2002
Jeffrey W Talley Upal Ghosh Samuel G Tucker John S Furey Richard G Luthy

This study reports results of sediment bioslurry treatment and earthworm bioaccumulation for polycyclic aromatic hydrocarbon (PAH) contaminants found in sediment dredged from Milwaukee Harbor. A significant finding was that bioslurry treatment reduced PAHs on the sediment clay/silt fraction but not on the sediment coal-derived fraction and that PAH reduction in the clay/silt fraction correlated...

Journal: :Journal of nematology 2014
Oscar Pérez-Hernández Loren J Giesler

Soil texture has been commonly associated with the population density of Heterodera glycines (soybean cyst nematode: SCN), but such an association has been mainly described in terms of textural classes. In this study, multivariate analysis and a generalized linear modeling approach were used to elucidate the quantitative relationship of soil texture with the observed SCN population density redu...

2016
D. Emanuel D. J. Sapsford

This paper presents a case study of several DNAPL contaminated sites around the Severn Estuary (UK) where a combination of detailed observations, core dissections and physicochemical characterisation of alluvial clay–silt horizons have revealed the presence of fossil rootlet biopores which act and have the potential to act as conduits for contaminant migration through up to 13 m of clay–silt. T...

In some situations, dams need to be built on non-rock alluvial grounds such as sand and sand-silt deposits. Therefore, undrained behavior and strength of silty sands are of great importance. One of the critical factors in studying the behavior of sand-silt mixtures is inherent anisotropy, a natural soil characteristic that depends on its texture and is independent of the soil's initial stress s...

2012
IFTIKHAR AHMAD M. ASLAM KHAN M. QASIM M. SHAHZAD ZAFAR RASHID AHMAD

The effects of various growing substrates, combinations of soil, silt, sand, press mud (PM) and rice hulls (RH) on plant growth, yield and quality of rose (Rosa hybrida L.) cvs. Kardinal, Anjlique and Gold Medal, were studied to standardize substrates for cut rose production and develop better management and quality production protocol. Plant height, number of leaves branch, leaf area, number o...

2016
S. Capape J. P. Martín - Vide

Preprint of Capape, S., Martín-Vide, J., and Colombo, F. (2016). “Subaqueous Barchans and 1 Plane Beds from Deposition of Quartz Silt.” J. Hydraul. Eng., 10.1061/(ASCE)HY.19432 7900.0001212, 06016020 3 Subaqueous Barchans and Plane Beds from Deposition of Quartz Silt 4 S. Capape*, J.P. Martín-Vide, and F. Colombo 5 Abstract 6 The suspension flow of quartz silt (geometric mean grain size of 4.15...

Journal: :international journal of civil engineering 0
m.h. baziar r. ziaie_moayed

this paper highlights the effect of silt content on cone tip resistance in loose silty sand. in this study, twenty-seven cone penetration tests are performed in saturated silty sand samples with several different silt contents ranging from 10 to 50 percent. the samples are consolidated at three overburden stresses including 100, 200 and 300 kpa. it is shown that, as the silt content increases, ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید