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Stochastic Effect - Wiley Online Library

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Last Updated: 26 January 2023

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Effect of Oceanic Stochastic Forcing on Wintertime Atmospheric Decadal Variability Over Midlatitude North Pacific

Random atmospheric forcing can cause oceanic low frequency variability in midlatitudes, according to previous studies, since the ocean has a high heat capacity that can redden the atmospheric high frequency variability. Large-scale atmospheric variability has significantly increased across the mid-latitude northwest Pacific, particularly on decadal timescale, after adding stochastic forcings that are constrained by observed mesoscale SST anomalies over the North Pacific in a sensitization experiment. Stochastic SSTAs in the north of KOE region can cause more diabatic heat across the region's northwest region, which is balanced by unusually low-level air temperature advection, according to atypical low-level air temperature advection, which is offset by unusually low low-level air temperature advection. Therefore, the atmospheric pressure rises as a result of the cold temperature advection anomaly, and the transient eddy flux and westerly jet have all been raised above the KOE region.

Source link: https://onlinelibrary.wiley.com/doi/10.1029/2022JD037594


Effect of platelet length and stochastic morphology on flexural behavior of prepreg platelet molded composites

Prepreg platelet molding compound can be used to produce structural grade material with a heterogeneous mesoscale morphology. The present study investigated various platelet lengths of the prepreg system IM7/8552 to see the effect of platelet length on the flexural behavior of a PPMC composite. Composite composites processed with a plate length of 12. 7 mm have a higher flexural modulus and strength than those made by 25. 4 and 6. 35 mm, according to the experimental results. The platelet length effect on the flexural mechanical behavior of the material was attributed to interactions between various attack mechanisms and the stochastic fiber orientation variation in the material.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/pc.27230


Linear Stochastic Analysis of the Partial Reversibility of Ensemble and Effective Dispersion in Heterogeneous Porous Media

The cause of spatial variability of the velocity field is the origin of heterogeneous clusters, giving different parts of a plume different advective displacements. We determine partial reversibility of macrodispersion by analyzing the second central ensemble and optimal spatial moments for advectiveu2010diffusive transport in heterogeneous domains with flow reversal, utilizing linear stochastic calculus to approximate the corresponding moments and comparing them to particleu2010walk simulations in periodic media. Both types of second central moments decrease during backward movement as long as advective memory dominates, but they increase later. The two main moments of second central moments differ in terms of both forward and backward motion, but to a lesser degree than in pure forward motion. The advective memory affects dispersion so strongly that the asymptotic regime is not established before the plume center has returned to its roots in realistic settings.

Source link: https://onlinelibrary.wiley.com/doi/10.1029/2022WR033570

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions