Results 61 to 70 of about 568 (210)

The influence pattern of scale effect on coarse-grained soil particle breakage: an experimental study

Frontiers in Materials
Coarse-grained soil is a common material for earth-rock dams and soft-ground projects. However, such soil particles are prone to breakage under load, thus affecting project safety. Accurately understanding the particle breakage characteristics is crucial
Xia Li, Jun Du, Xinggang Shen, Chenghan Wang, Chenghan Wang, Chenghan Wang, Yubo Liu, Yubo Liu, Yubo Liu, Haoran Jin, Haoran Jin, Haoran Jin, Mingjie Jiang, Mingjie Jiang, Mingjie Jiang   +14 more
doaj   +1 more source

Optimising Sulphur Fertilisation in Ryegrass–White Clover Swards Reduces Leached Nitrate Nitrogen Losses, While Increasing Plant Yield and Nitrogen Off‐Take

Journal of Plant Nutrition and Soil Science, EarlyView.
The inclusion of sulphur at two inorganic nitrogen rates (0 and 150 kg N ha−1) improves plant productivity in a ryegrass–white clover sward and reduces nitrate‐N loss to groundwater in a free‐draining sandy loam soil. ABSTRACT Background Reducing nitrogen (N) losses to water, lessening reliance on inorganic fertiliser and maintaining agricultural ...
Donal Kinsella, Imelda A. Casey, Patrick J. Forrestal   +2 more
wiley   +1 more source

Estimation of Resilient Modulus for Coarse-Grained Subgrade Soils from Quick Shear Tests for Mechanistic-Empirical Pavement Designs

Designs, 2019
The resilient modulus represents the subgrade soil stiffness, and it is considered one of the key material inputs in the Mechanistic Empirical Pavement Design Guide (MEPDG).
Md Mostaqur Rahman, Kazi Moinul Islam, Sarah Gassman   +2 more
doaj   +1 more source

The German Soil Systematics and the Rationale Behind Its Revision

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background The German Soil Systematics is a pedogenetic classification based on the morphological expressions of pedogenic processes and has been developed over several stages since 1952. The system has successfully been in use for soil classification and soil survey for almost 70 years.
Einar Eberhardt, Karl Stahr, Peter Schad, Alexander Gröngröft   +3 more
wiley   +1 more source

Field measurements for the effectiveness of compaction of coarse-grained soils

KSCE Journal of Civil Engineering, 2014
Most earthwork construction specifications recommend a lift thickness of 0.2 m for subgrade soils during road construction. These limits were originally implemented to ensure uniform compaction across the entire depth of the soil lifts. However, it has also been argued that the larger footprints and weight available in modern compaction equipment could
Kyu-Sun Kim, Dante Fratta, Haifang Wen
openaire   +1 more source

Can DNA from wet, temperate soils be used for palaeoecological reconstruction?

Journal of Quaternary Science, EarlyView.
ABSTRACT Sedimentary ancient DNA in well‐dated contexts (sedaDNA) has great potential as a palaeoecological proxy. A few studies have attempted palaeoecological reconstructions using sedaDNA from soil; these studies have been mainly restricted to cold and/or dry soils.
Nick A. Cutler, Doreen Yu‐Tuan Huang, Richard T. Streeter, Andrew J. Dugmore   +3 more
wiley   +1 more source

Prediction of cement infiltration depth in coarse-grained soil

KSCE Journal of Civil Engineering, 2013
During construction of underground structure, cement slurry can be infiltrated into a coarse-grained soil and forms a cement infiltrated zone. This zone may serve as a part of structural element when the strength of this zone increases significantly.
Hyung-Keun Park, Young Cheol Chang
openaire   +1 more source

Insect communities of late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada

Journal of Quaternary Science, EarlyView.
ABSTRACT Subfossil insect communities from the Quartz Creek site provide a detailed record of both Late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada. Fifteen Pleistocene assemblages (marine isotope stages [MIS] 4 to 2) are dominated by steppe–tundra and dry‐tundra taxa, particularly the weevils ...
Scott L. Cocker, Svetlana Kuzmina, Nick Schafstall, Michael A. Monzon, Duane G. Froese   +4 more
wiley   +1 more source

Evolution of crushing process of coarse-grained soil filler under the trains load

Scientific Reports
Research on the evolutionary behavior of the particle breakage processes in coarse-grained soil under the action of train load is of practical significance for subgrade construction and maintenance.
Qiyun Wang, Jiajun Zeng, Qingqing Shen, Huaming Lin, Yao Long   +4 more
doaj   +1 more source

Effect of bio‐fertilization and edapho‐climatic conditions on chickpea nodulation, grain yields, and seed protein in a Mediterranean context: a meta‐analysis approach

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Chickpeas (Cicer arietinum L.) serve as a protein‐rich staple, particularly in Mediterranean countries, where they are often grown in marginal and water‐stressed areas. This meta‐analysis synthesized evidence from peer‐reviewed publications across Mediterranean countries to assess how chickpea rhizobial inoculation influences chickpea ...
Amira Hachana, Amir Souissi, Lewis Ziska, Katherine Morgan, Carina Yiu, Issam Achour, Asma Bouatrous, Imen Hemissi, Hanen Arfaoui, Anissa Riahi, Manel Bouraoui, Bouaziz Sifi   +11 more
wiley   +1 more source