Results 41 to 50 of about 130,989 (297)

Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow Valley

open access: yesRenmin Zhujiang, 2022
At present,in the finite-element stress and strain calculation of rockfill dams,fixed support is mostly adopted to simulate the connection between the rockfill at the bank slope and the slope.As for a concrete-face rockfill dam (CFRD) in the steep slope ...
HOU Bingling, NIE Baisong
doaj  

Evaluation of traction properties of tractors in a roller testing station

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2004
The aim of this study was to analyse pulling and slipping parameters of tractors on the base of performed pulling tests and to develop general mathematic formulas suitable for the evaluation of pulling properties of tractors of different types in a ...
Pavel Sedlák, František Bauer
doaj   +1 more source

The slippage paradox [PDF]

open access: yes, 2011
Buying or selling assets leads to transaction costs for the investor. On one hand, it is well know to all market practionaires that the transaction costs are positive on average and present therefore systematic loss.
Bohn, Steffen
core   +2 more sources

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Effective slippage on superhydrophobic trapezoidal grooves

open access: yes, 2013
We study the effective slippage on superhydrophobic grooves with trapezoidal cross-sections of various geometries (including the limiting cases of triangles and rectangular stripes), by using two complementary approaches.
Asmolov, Evgeny S.   +3 more
core   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo   +3 more
wiley   +1 more source

Pattern Generation for Walking on Slippery Terrains

open access: yes, 2017
In this paper, we extend state of the art Model Predictive Control (MPC) approaches to generate safe bipedal walking on slippery surfaces. In this setting, we formulate walking as a trade off between realizing a desired walking velocity and preserving ...
Herzog, Alexander   +3 more
core   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

Evoking Apparent Moving Sensation in the Hand via Transcutaneous Electrical Nerve Stimulation

open access: yesFrontiers in Neuroscience, 2020
The restoration of sensory feedback in amputees plays a fundamental role in the prosthesis control and in the communication on the afferent channel between hand and brain.
Alessia Scarpelli   +4 more
doaj   +1 more source

A wide bandwidth free-electron laser with mode locking using current modulation [PDF]

open access: yes, 2011
A new scheme for mode locking a free-electron laser (FEL) amplifier is proposed based on electron beam current modulation. It is found that certain properties of the original concept (Thompson and McNeil 2008 Phys. Rev. Lett.
Dunning, D J   +4 more
core   +1 more source

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