Results 31 to 40 of about 216,543 (287)

Seepage Analysis and the Reservoir Water Pollution Potential under Vertical Dam Structure Planning

open access: yesJournal of the Civil Engineering Forum, 2023
A prospective resolution to the intricate predicaments of flooding, sanitation, and the availability of unprocessed water for the populace of Jakarta residents is the implementation of the coastal reservoir paradigm. This paradigm entails harnessing the
Dinar C. Istiyanto   +7 more
doaj   +1 more source

First Exit Time Analysis of Stochastic Gradient Descent Under Heavy-Tailed Gradient Noise

open access: yes, 2019
Stochastic gradient descent (SGD) has been widely used in machine learning due to its computational efficiency and favorable generalization properties. Recently, it has been empirically demonstrated that the gradient noise in several deep learning settings admits a non-Gaussian, heavy-tailed behavior.
Nguyen, Thanh Huy   +3 more
openaire   +2 more sources

Spatiotemporal control of mitotic exit during anaphase by an aurora B-Cdk1 crosstalk

open access: yeseLife, 2019
According to the prevailing ‘clock’ model, chromosome decondensation and nuclear envelope reformation when cells exit mitosis are byproducts of Cdk1 inactivation at the metaphase-anaphase transition, controlled by the spindle assembly checkpoint. However,
Olga Afonso   +9 more
doaj   +1 more source

Studying the Effect of Head Difference on Exit Gradients and Uplift Pressures Beneath Hydraulic Structures by Gene Expression Programming

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
AbstractThe seeping flow under the hydraulic structure produces uplifting pressure on its floor, which affects the performance of these structures. This problem was numerically analyzed using the finite difference method in Matlab after verification with GeoStudio software.
Duaa Hadi Khashan, Waqed H Hassan
openaire   +1 more source

THE EFFECT OF CUTOFF WALL ANGLE ON SEEPAGE UNDER DAMS

open access: yesJournal of Engineering, 2011
Flow of water under concrete dams generates uplift pressure under the dam, which may cause the dam to function improperly, in addition to the exit gradient that may cause piping if exceeded a safe value.
Zainal, Abdul Kareem Esmat
doaj   +1 more source

Influence of Skewed Anisotropy upon Exit Gradients

open access: yesEngineering and Technology Journal, 2012
The generalization of DARCY’s law in 2.diemnsions has led to equations which describe permeability of the soil as a symmetric tensor of second rank (1, 2). In seepage problems it is common to define the GLOBAL coordinate axis to coincide with the principal directions of the permeability tensor, therefore, the cross product (off – diagonal) components ...
openaire   +2 more sources

Magnetic flux pinning in superconductors with hyperbolic-tesselation arrays of pinning sites

open access: yes, 2012
We study magnetic flux interacting with arrays of pinning sites (APS) placed on vertices of hyperbolic tesselations (HT). We show that, due to the gradient in the density of pinning sites, HT APS are capable of trapping vortices for a broad range of ...
Misko, V. R., Nori, Franco
core   +1 more source

Temperature development in the leakage flow of screw extruders [PDF]

open access: yes, 1978
Temperature distribution at the exit of the leakage gap is of interest for a number of problems. For the calculation of temperatures, the leakage flow may be considered to be a pure drag flow to a good approximation.
Abramowitch   +11 more
core   +3 more sources

Growth of Rayleigh instability in a Hall thruster channel having dust in exit region

open access: yesAIP Advances, 2019
In a Hall thruster, the axial movement of ions towards the exit of the chamber and the divergence of ion beam sputter the wall and thus the maximum erosion of wall of the exit region takes place.
Hitendra K. Malik   +2 more
doaj   +1 more source

Effects of Magnetic Field Gradient on the Performance of a Magnetically Shielded Hall Thruster

open access: yesAerospace, 2023
The objective of this study is to investigate the effects of a magnetic field gradient on the performance of a magnetically shielded Hall thruster. The Particle-in-cell with Monte Carlo collision method (PIC-MCC) is used to simulate the discharge process
Qi Liu, Yong Li, Yanlin Hu, Wei Mao
doaj   +1 more source

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