Results 41 to 50 of about 134,153 (162)

Steady state characteristics and stability limits of oil lubricated journal bearings using titanium dioxide nanoparticles as lubricant additives

Results in Engineering, 2023
The current work is presented to investigate the impact of titanium dioxide (TiO2) nanoparticle volume fraction and the nanoparticle aggregate sizes on the steady state characteristics and stability limits of journal bearings.
H. Awad, Khaled M. Abdou, E. Saber
doaj   +1 more source

Conditions for the Occurrence of Slaking and Other Disaggregation Processes under Rainfall

Hydrology, 2016
Under rainfall conditions, aggregates may suffer breakdown by different mechanisms. Slaking is a very efficient breakdown mechanism. However, its occurrence under rainfall conditions has not been demonstrated.
Frédéric Darboux, Jaqueline Dalla Rosa, Miguel Cooper   +2 more
doaj   +1 more source

Stability of Aggregation Procedures, Ultrafilters, and Simple Games [PDF]

Econometrica, 1981
International ...
Batteau, Pierre, Blin, Jean-Marie, Monjardet, Bernard   +2 more
openaire   +3 more sources

van der Waals–stabilized Rydberg aggregates [PDF]

Physical Review A, 2014
Assemblies of Rydberg atoms subject to resonant dipole-dipole interactions form Frenkel excitons. We show that van-der-Waals shifts can significantly modify the exciton wave function, whenever atoms approach each other closely. As a result, attractive excitons and repulsive van-der-Waals interactions can be combined to form stable one-dimensional atom ...
Zoubi, H., Eisfeld, A., Wüster, S.
openaire   +3 more sources

Responses of soil aggregate characteristics to grazing intensity differ between topsoil and subsoil in a typical steppe

Frontiers in Environmental Science
Soil aggregates are vital to soil structure, influencing grassland ecosystem health and sustainability. As a dominant land use in grasslands, grazing acts as a key driver of ecosystem structure and function, yet the responses of aggregate size ...
Hao Li, Zeyu Yang, Xiao Guo, Hangyu Li, Xing Li, Yantao Wu, Ying Han, Zhiyong Li, Jinghui Zhang, Bailing Miao, Cunzhu Liang   +10 more
doaj   +1 more source

Symbiosis of Arbuscular Mycorrhizal Fungi and Robinia pseudoacacia L. Improves Root Tensile Strength and Soil Aggregate Stability. [PDF]

PLoS ONE, 2016
Robinia pseudoacacia L. (black locust) is a widely planted tree species on Loess Plateau for revegetation. Due to its symbiosis forming capability with arbuscular mycorrhizal (AM) fungi, we explored the influence of arbuscular mycorrhizal fungi on plant ...
Haoqiang Zhang, Zhenkun Liu, Hui Chen, Ming Tang   +3 more
doaj   +1 more source

RECIPROCAL RELATIONSHIPS BETWEEN AGGREGATE STABILITY AND ORGANIC CARBON CHARACTERISTICS IN A FORESTED ECOSYSTEM OF NORTHERN NIGERIA

Tropical and Subtropical Agroecosystems, 2012
Soil organic matter associated with different size aggregates differ in structure and function; therefore, play different roles in soil organic carbon (SOC) turnover.
Halima Mohammed Lawal
doaj  

Land-use shapes the composition and stability of soil water-stable aggregates in a plateau agro-pastoral ecotone [PDF]

PeerJ
Background The northeastern Tibetan Plateau is a typical agro-pastoral ecotone that experiences frequent land-use changes. Maintaining stable soil aggregates in this region is key to protecting the environment and supporting food production on the ...
Ling Bai, Wei Wang, Yujuan Mo, Xubin Zhang, Jianchao Fu, Longfei Shu, Zining Yue, Peng Liu, Jian Hao, Xiang Liu, Deming Zhang   +10 more
doaj   +2 more sources

Study of Saturated Hydraulic Conductivity Variations in Different Aggregate Size Distributions in an Agricultural Soil

علوم آب و خاک, 2019
Saturated hydraulic conductivity (Ks) is one of the most important soil physical characteristics that plays a major role in the soil hydrological behaviour. It is mainly affected by the soil structure characteristics.
S. Rahmati, A. R. Vaezi, H. Bayat
doaj  

Soil Aggregate Stability Under Freeze–Thaw Cycles in Mollisols as Evidenced by ¹⁵N Distribution

Agronomy
Freeze–thaw cycles (FTCs) influence soil nitrogen (N) dynamics and soil aggregate stability. However, the driving mechanism affecting aggregate stability from the combined perspective of N components and N distribution by 15N tracing technology in both ...
Yao Wang, Meng Zhou, Xiaoguang Jiao, Liangqian Ma, He Yu, Yimin Chen, Yueyu Sui   +6 more
doaj   +1 more source