Results 31 to 40 of about 1,588,486 (313)

Influence of the intermediate material on the singular stress field in tri-material junctions [PDF]

open access: yes, 2004
According to the mathematical formalism of the eigenfunction expansion method, the problem of stress-singularities arising from multi-material junctions is addressed.
M. PAGGI   +4 more
core   +1 more source

Melatonin increases growth and salt tolerance of Limonium bicolor by improving photosynthetic and antioxidant capacity

open access: yesBMC Plant Biology, 2022
Background Soil salinization is becoming an increasingly serious problem worldwide, resulting in cultivated land loss and desertification, as well as having a serious impact on agriculture and the economy.
Junpeng Li   +6 more
doaj   +1 more source

Normal stresses in elastic networks

open access: yesPhysical Review E, 2013
When loaded in simple shear deformation, polymeric materials may develop so-called normal stresses: stresses perpendicular to the direction of the applied shear. These normal stresses are intrinsically nonlinear: basic symmetry considerations dictate they may only enter at O(γ(2)), with γ the dimensionless shear strain.
Cioroianu, A.R., Storm, C.
openaire   +2 more sources

Effects of combined application of compound fertilizer and biochar on absorption and utilization of phosphorus by wheat [PDF]

open access: yesPeerJ
Unreasonable fertilization practices are still applied in agricultural production, resulting in reduced crop yields and wasting resources. Therefore, it is essential to optimize fertilization regimes to improve the nutrient absorption capacity of crops ...
Yun Li   +7 more
doaj   +2 more sources

“Normalized Stress” is Not Normalized: How to Interpret Stress Correctly

open access: yes2024 IEEE Evaluation and Beyond - Methodological Approaches for Visualization (BELIV)
Stress is among the most commonly employed quality metrics and optimization criteria for dimension reduction projections of high dimensional data. Complex, high dimensional data is ubiquitous across many scientific disciplines, including machine learning, biology, and the social sciences. One of the primary methods of visualizing these datasets is with
Kiran Smelser   +2 more
openaire   +2 more sources

Effects of suckling on hypothalamic-pituitary-adrenal axis responses to psychosocial stress in postpartum lactating women [PDF]

open access: yes, 2001
In several studies lactation has been shown to be associated with a hypothalamic-pituitary-adrenal axis hyporesponsiveness to physical and psychological stressors. As it is not known whether the marked blunting of endocrine stress reactivity in women can
Heinrichs, M.   +16 more
core   +1 more source

Characterization of the complete plastome of Eleusine coracana (Gramineae), an annual crop

open access: yesMitochondrial DNA. Part B. Resources, 2021
Eleusine coracana is a hardy crop that can grow in diverse environments. In this study, the complete plastome of E. coracana was determined. The plastome was 135,144 bp in size.
Yuan Liu   +4 more
doaj   +1 more source

Direct measurement of the contact normal stress distribution between two smooth joint surfaces

open access: yes, 2016
The shear strength of rock joints is highly depended upon the failure mode of joint asperity. At lower normal stress slide-up of one asperity up over another mode, however at high normal stress the joint asperities are sheared off at the base.
Yang, Z.Y.;Chiu, W.C.
core   +1 more source

Anomalous stress diffusion in earthquake triggering: Correlation length, time dependence, and directionality [PDF]

open access: yes, 2003
It has been recently suggested that moderate and large earthquakes can be triggered by similarly sized events at very long range. Here we study the main characteristics of earthquake triggering by determining its correlation length, time dependence, and ...
Ian G. Main   +3 more
core   +1 more source

Interplay between the Ubiquitin Proteasome System and Ubiquitin-Mediated Autophagy in Plants

open access: yesCells, 2020
All eukaryotes rely on the ubiquitin-proteasome system (UPS) and autophagy to control the abundance of key regulatory proteins and maintain a healthy intracellular environment. In the UPS, damaged or superfluous proteins are ubiquitinated and degraded in
Tong Su   +4 more
doaj   +1 more source

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