common vetch ) vicia sativa .l) is belong to fabaceae family and due to adaptation and tolerance to environmental stresses are considered. in this research, morphological and agronomic characteristics of 89 genotypes of common vetch ) vicia sativa .l) were evaluated in an augmented design under irrigated and drought stress conditions in research field of university of tehran at karaj in 2011. r...

Plants have different responses to salt and drought stresses. They transport several ions balance osmotic potential stomatal closure opening. Ions including inorganic organic cations anions play a crucial role alleviate abiotic stresses (salt drought). Inorganic containing Na+, K+, Mg2+ Ca2+ comprising Cl-, PO42-, NO3-, SO42- great in ion hemostasis response water Organic like acetate, succinat...

The bienniality of production and the incidence pests diseases, such as coffee leaf miner rust, stands out among factors that limit crop yield. Obtaining cultivars with greater stability in resistance to these biotic agents are main objectives breeding programs. In this way, biotechnological tools Genomic Wide Association Studies (GWAS) can increase programs' efficacy since they allow identific...

This work investigates plastic deformation around non-metallic inclusions in rolling contact fatigue applications. Subsurface stresses from Hertzian theory are applied form of far-field loading on an elasto-plastic micro-mechanical model isolated inclusion. Initial and cyclic micro-scale plasticity quantified, assuming linear kinematic hardening for the steel matrix elastic or perfectly behavio...

Shear yielding of glassy polymers is usually described in terms of the pressure-dependent Tresca or von Mises yield criteria. We test these criteria against molecular dynamics simulations of deformation in amorphous polymer glasses under triaxial loading conditions that are difficult to realize in experiments. Difficulties and ambiguities in extending several standard definitions of the yield p...

Suspensions are of wide interest and form the basis for many smart fluids. For most suspensions, the viscosity decreases with increasing shear rate, that is, they shear thin. Few are reported to do the opposite, that is, shear thicken, despite the longstanding expectation that shear thickening is a generic type of suspension behaviour. Here we resolve this apparent contradiction. We demonstrate...

The spreading under surface tension and gravity of a droplet yield-stress fluid over thin film the same material is studied. converges to final equilibrium shape once driving stresses inside fall below yield stress. Scaling laws are presented for radius complemented with an asymptotic analysis shallow droplets. Moreover, numerical simulations using volume-of-fluid method regularized constitutiv...