Results 21 to 30 of about 9,108,764 (249)

SR-BLITS: Sharpe ratio’s backward-looking improvement as a trading strategy

open access: yesIIMB Management Review, 2019
A common strategy for a single security or a tradeable asset is to buy-and-hold. Proposed SRBLITS that takes a position based on buy and sell signals which correspond to the maximisation of a backwards-looking Sharpe Ratio (SR) based on past returns.
Mohammed Shahid Abdulla
doaj   +1 more source

Experimental analysis of specific energy with variable deformation volume under sphere oblique impact

open access: yesMechanics & Industry, 2023
Experiments of a steel sphere oblique impact with a rubber cushion have been proceeded to research the variation laws of the specific energy at interface.
Wang Qing-Peng   +5 more
doaj   +1 more source

Time-dependent measurements of length and area of the contact line in contact-boiling regime

open access: yes, 2021
During the impact of a liquid droplet on a sufficiently heated surface, bubble nucleation reduces the contact area between the liquid and the solid surface.
Mohammad Khavari, Tuan Tran, Tran, Tuan
core   +1 more source

Exploring the mechanisms of influence of ethical leadership on employment relations

open access: yesIIMB Management Review, 2019
Alarmed by the frequent recurrence of industrial unrest, scholars in the field of employment relations have started to revisit the factors influencing employees’ perception of industrial relations climate.
Jatinder Kumar Jha, Manjari Singh
doaj   +1 more source

Elastic Rough Surface Contact and the Root Mean Square Slope of Measured Surfaces over Multiple Scales

open access: yesFractal and Fractional, 2021
This study investigates the predictions of the real contact area for perfectly elastic rough surfaces using a boundary element method (BEM). Sample surface measurements were used in the BEM to predict the real contact area as a function of load.
Robert L. Jackson   +3 more
doaj   +1 more source

A preliminary attempt to combine in situ CT measurements with permeability tests of fractured granite cores

open access: yesJournal of Fluid Science and Technology, 2023
We introduced a core-flooding test equipment with the triaxial cell having been made available to in situ computed tomography (CT) scanning. Water flow-through tests were conducted on 38 mm-diameter fractured granite cores containing either saw-cut or ...
Li ZHUANG   +4 more
doaj   +1 more source

Dissipation of vibration in rough contact [PDF]

open access: yes, 2010
The relationship which links the normal vibration occurring during the sliding of rough surfaces and the nominal contact area is investigated. Two regimes are found.
E. Bou-Chakra   +5 more
core   +1 more source

The 3D nature of a real un-dismantled electrical contact interface [PDF]

open access: yes, 2015
A 3D contact analysis and modeling suite of tools are developed and introduced in this work. The "3D Contact Map" of an electrical contact interface is presented demonstrating the 3D nature of the contact.
Swingler, Jonathan   +3 more
core   +1 more source

Adhesion Between Rigid Indenter and Soft Rubber Layer: Influence of Roughness

open access: yesFrontiers in Mechanical Engineering, 2020
We report a series of experiments on the indentation of steel indenters into a soft layer of transparent rubber with relatively high adhesion. The roughness properties of the steel indenters are varied by undergoing preparation using sandpaper with ...
Iakov A. Lyashenko   +2 more
doaj   +1 more source

Mechanics Analysis of Rough Surface Based on Shoulder-Shoulder Contact

open access: yesApplied Sciences, 2021
Proper methods and models for mechanical analysis of rough surface can improve the theory of surface contact. When the topography parameters of two rough surfaces are similar, the contact should be considered shoulder-shoulder rather than top-top.
Qiuping Yu, Jianjun Sun, Zhengbo Ji
doaj   +1 more source

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