Results 21 to 30 of about 677,718 (302)

Aggregate stability in soils cultivated with eucalyptus

open access: yesPesquisa Agropecuária Brasileira, 2011
The objective of this work was to evaluate the aggregate stability of tropical soils under eucalyptus plantation and native vegetation, and assess the relationships between aggregate stability and some soil chemical and physical properties.
Junior Cesar Avanzi   +5 more
doaj   +1 more source

Effects of freeze-thaw cycles on the size distribution and stability of soil aggregate in the permafrost regions of the Qinghai-Tibetan Plateau

open access: yesEnvironmental Research Communications, 2023
As the basic units of soil structure, soil aggregate is essential for maintaining soil stability. Intensified freeze–thaw cycles have deeply affected the size distribution and stability of aggregate under global warming.
Chenjie Dong   +7 more
doaj   +1 more source

Mixed planting improves soil aggregate stability and aggregate-associated C-N-P accumulation in subtropical China

open access: yesFrontiers in Forests and Global Change, 2023
Research on the variations in soil aggregate stability and ecological stoichiometry at aggregate scales by stand type is of great significance in investigating the distribution, limitation, balance, and cycling of organic carbon, nitrogen, and phosphorus
Yaqin He   +6 more
doaj   +1 more source

Aggregate-Size Stability Distribution and Soil Stability

open access: yesSoil Science Society of America Journal, 2004
A new theoretical and experimental framework that permits an accurate determination of aggregate‐size stability distribution is presented. The size‐stability distribution in addition to estimating aggregate‐size distribution distinguishes between amounts of stable and unstable macroaggregates (>250 μm).
Márquez, C. O.   +4 more
openaire   +3 more sources

High-temperature catalyst supports and ceramic membranes: Metastability and particle packing [PDF]

open access: yes, 1997
Parameters and/or processes responsible for the stability of catalyst supports and ceramic membranes are discussed. Two major parameters/processes were identified which are responsible for the stability of sol-gel derived nanostructured oxides at ...
Burggraaf, Anthonie J.   +5 more
core   +2 more sources

Characterization of random stress fields obtained from polycrystalline aggregate calculations using multi-scale stochastic finite elements [PDF]

open access: yes, 2015
The spatial variability of stress fields resulting from polycrystalline aggregate calculations involving random grain geometry and crystal orientations is investigated.
Berveiller, Marc   +4 more
core   +3 more sources

Aggregate Stability and Balanced-Budget Rules [PDF]

open access: yesJournal of Money, Credit and Banking, 2014
It has been shown that under perfect competition and a Cobb-Douglas production function, a basic real business cycle model may exhibit indeterminacy and sunspot fluctuations when income tax rates are determined by a balanced-budget rule (BBR). This paper introduces in an otherwise standard real business cycle model a more general and data-coherent ...
Ghilardi, Matteo, Rossi, Raffaele
openaire   +4 more sources

The stability of soil aggregates in tilled fallow areas in Hyderabad district, Pakistan

open access: yesJournal of Water and Land Development, 2015
Arid areas are particularly susceptible to soil erosion due to long dry periods and sudden heavy downpours. This study investigates the aggregate size distribution and aggregate stability of twelve tilled fallow areas of Hyderabad district, Sindh ...
Tagar Ahmed, Adamowski Jan
doaj   +1 more source

Sodium Diisopropylamide: Aggregation, Solvation, and Stability [PDF]

open access: yesJournal of the American Chemical Society, 2017
The solution structures, stabilities, physical properties, and reactivities of sodium diisopropylamide (NaDA) in a variety of coordinating solvents are described. NaDA is stable for months as a solid or as a 1.0 M solution in N,N-dimethylethylamine (DMEA) at -20 °C.
Russell F. Algera   +2 more
openaire   +2 more sources

Performance evaluation of hot mix asphalt (HMA) using glass fiber as a partial replacement of fine aggregate [PDF]

open access: yesArchives of Civil Engineering
Hot Mix Asphalt mixtures are often used as the top layer of pavement structures to build roads worldwide. Hot Mix Asphalt (HMA) mixtures combine bitumen and aggregate to produce roads.
Liyana Ahmad Sofri   +5 more
doaj   +1 more source

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