Results 181 to 190 of about 2,850,945 (254)

Acoustic Absorption in Sand and Soil

The Journal of the Acoustical Society of America, 1948
The acoustic absorption properties of sand and soil with varying amounts of water, ranging from dry to saturated, have been investigated. In most of the work the frequency range was 10–30 kc, although data were obtained at as high as 150 kc. Two methods were used.
W. L. Nyborg, I. Rudnick
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Plasticity Behaviour of Sand Matrix Soils

Applied Mechanics and Materials, 2014
Natural sand does always contain significant amounts of fine particles, but previous study always assumes that the typical engineering characteristic of clean sand was remarkably representing as to all types of sand matrix soils. Studies reported that additional of plastic fines could either impose additional or reduce the liquefaction resistance of ...
Choy Soon Tan, Aminaton Marto, Ahmad Mahir Makhtar, Faizal Pakir   +3 more
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Of Sand or Soil

2015
Why do tribal genealogies matter in modern-day Saudi Arabia? What compels the strivers and climbers of the new Saudi Arabia to want to prove their authentic descent from one or another prestigious Arabian tribe? This book looks at how genealogy and tribal belonging have informed the lives of past and present inhabitants of Saudi Arabia and how the ...
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Evaluation of engineering properties and environmental effect of recycled waste tire-sand/soil in geotechnical engineering: A compressive review

, 2020
The disposal of waste tire has caused a significant health and environmental problem around the world. Nearly 1 billion tons of tires are discarded each year.
Lulu Liu, G. Cai, Jun Zhang, Xiaoyan Liu, Kai Liu   +4 more
semanticscholar   +1 more source

Soil Aggregate Abrasion by Impacting Sand and Soil Particles

Transactions of the ASAE, 1984
ABSTRACT DURING wind erosion, erodible particles (< 0.85 mm diameter) are removed continually in saltation and suspension, but the supply of particles is rarely exhausted because new erodible-size particles are created constantly by abrasion. Little is known about the physics of soil abrasion, however. This study was undertaken to determine the effects
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Microplastics undergo accelerated vertical migration in sand soil due to small size and wet-dry cycles.

Environmental Pollution, 2019
Microplastics (MPs) are an emerging concern and potential risk to marine and terrestrial environments. Surface soils are reported to act as a sink. However, MP vertical mobility in the subsurface remains uncertain due to a lack of scientific data.
David O’Connor, Shizhen Pan, Zhengtao Shen, Yinan Song, Yuanliang Jin, Wei-Min Wu, D. Hou   +6 more
semanticscholar   +1 more source

Mechanical properties of sand and sand-gravel soils for underwater fill

Hydrotechnical Construction, 1986
1. The method of investigating the physical and mechanical properties of noncohesive soils in the range of variation of relative density ...
M. P. Pavchich, O. A. Pakhomov
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Enantioselective dissipation of pyriproxyfen in soils and sand

Chirality, 2017
AbstractUnder normal conditions, the environmental behaviors of pesticides are affected by complex environmental factors and the manner of administration together with constraints. In order to meet the actual needs, we imitated the experiment and found that the degradation rate of pyriproxyfen in soils rendered complex changes.
Hui Liu, Peng Wang, Zhiqiang Zhou, Donghui Liu   +3 more
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Predicting Sand Content of Modified Soil Mixtures from Sand, Soil, and Peat Properties¹

Agronomy Journal, 1984
AbstractObtaining a specified texture in a sand‐soil‐peat mixture after mixing by a contractor requires some assumptions on the part of the soil/turf scientist. Its estimation depends on calculations based on analysis of the individual components and knowledge of bulk density values for the sand, soil, and peat.
D. H. Taylor, G. R. Blake
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Are pseudo-sands internal soil biophysical reactors?

2023
Most biogeochemical models commonly obtain their soil input from pedotransfer functions based on soil texture and other crude but widely available soil data. However, soil texture based on single grain size distribution neglects the impact of actual soil structures in the field.
Hermann F. Jungkunst, Simone Kilian Salas, Paul A. Schroeder, Jens Boy, Georg Guggenberger   +4 more
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