Results 21 to 30 of about 404,407 (245)

MHD Casson Fluid Flow over a Stretching Sheet with Entropy Generation Analysis and Hall Influence

open access: yesEntropy, 2019
The impacts of entropy generation and Hall current on MHD Casson fluid over a stretching surface with velocity slip factor have been numerically analyzed.
Mohamed Abd El-Aziz, Ahmed A. Afify
doaj   +1 more source

An Improved Optimal Slip Ratio Prediction considering Tyre Inflation Pressure Changes [PDF]

open access: yes, 2015
The prediction of optimal slip ratio is crucial to vehicle control systems. Many studies have verified there is a definitive impact of tyre pressure change on the optimal slip ratio.
Gu, Fengshou   +4 more
core   +2 more sources

Research on the Slip Rate Control of a Power Shift Tractor Based on Wheel Speed and Tillage Depth Adjustment

open access: yesAgronomy, 2023
The existing control methods for the slip rate of the driving wheel of a test prototype have limitations that cause low-quality tillage and finishing operations. We propose a slip rate control method based on the dual factor adjustment of wheel speed and
Changhai Luo   +6 more
doaj   +1 more source

Practical issues in slip-resistant bolted connections for steel structures [PDF]

open access: yesGrađevinski Materijali i Konstrukcije
The application of slip-resistant bolted connections is necessary to prevent the contribution of slippage due to bolt-hole-diameter clearances in the lateral displacements of high-rise steel-braced frames or other high-rise structures.
Georgiev Tzvetan
doaj   +1 more source

Implications of a 20-Hz Booster cycle-rate for Slip-stacking [PDF]

open access: yes, 2014
We examine the potential impacts to slip-stacking from a change of the Booster cycle-rate from 15- to 20-Hz. We find that changing the Booster cycle-rate to 20-Hz would greatly increase the slip-stacking bucket area, while potentially requiring greater ...
Eldred, Jeffrey, Zwaska, Robert
core   +1 more source

How to Improve the Performance Prediction of a Pump as Turbine by Considering the Slip Phenomenon

open access: yesProceedings, 2018
Nowadays Pumps working as Turbines (PaT) are devices widely used to perform energy recovery in hydraulic grids, thus improving their overall efficiency, and to build small hydropower plants.
Tommaso Capurso   +7 more
doaj   +1 more source

Development of a 1-D Performance Prediction Model for Pumps as Turbines

open access: yesProceedings, 2018
Pumps as turbines (PaTs) are becoming more and more attractive in Small Hydropower. PaTs are considered a cost-effective alternative to conventional turbines as long as their turbine characteristic curves can be predicted. Indeed, manufacturers need of a
Michele Stefanizzi   +7 more
doaj   +1 more source

Stick-slip and Torsional Friction Factors in Inclined Wellbores [PDF]

open access: yesMATEC Web of Conferences, 2018
Stick slip is usually considered a phenomenon of bit-rock interaction, but is also often observed in the field with the bit off bottom. In this paper we present a distributed model of a drill string with an along-string Coulomb stiction to investigate the effect of borehole inclination and borehole friction on the incidence of stick-slip. This model is
Aarsnes, Ulf Jakob Flø, Shor, Roman
openaire   +5 more sources

Slip boundary conditions for shear flow of polymer melts past atomically flat surfaces [PDF]

open access: yes, 2008
Molecular dynamics simulations are carried out to investigate the dynamic behavior of the slip length in thin polymer films confined between atomically smooth thermal surfaces.
Anoosheh Niavarani   +7 more
core   +3 more sources

The sliding-contact factor (ηsc): a novel index for slip risk definition

open access: yesSN Applied Sciences, 2022
The causes of slip are multiple and depend on the mechanical and aesthetic characteristics of the surfaces in contact, and on external elements related to the specific situation. The non-slip characteristics of a surface can be evaluated by measuring the
Ciro Scialò
doaj   +1 more source

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