On the Computational Power of Shared Objects

Anomalies in the Wait-Free Hierarchy

Abst rac t . We considel' the hierarchy of wait-free shared objects, and show that this hierarchy does not express the computational power of shared objects. We prove that there are objects that are classified high in the hierarchy, yet, they can not implement objects that are classified much lower in the hierarchy. Our main result is: for any two levels kl > k2 in the hierarchy, there are shar...

A Theoretical Framework for Several Antecedents of Shared Leadership in Corporate Board Contexts

Due to the gap in understanding board leadership and specifically, board shared leadership, this article aims at proposing some antecedents of the emergence of board shared leadership. This article incorporates three bodies of literature: Team effectiveness, team leadership, and board management. Based on integrating several theoretical perspectives, nine propositions are developed in relation ...

A computational investigation on the structural features of alkanolamine solvents for CO2 capture process from power plant flue gas

A Novel Method for Tracking Moving Objects using Block-Based Similarity

Extracting and tracking active objects are two major issues in surveillance and monitoring applications such as nuclear reactors, mine security, and traffic controllers. In this paper, a block-based similarity algorithm is proposed in order to detect and track objects in the successive frames. We define similarity and cost functions based on the features of the blocks, leading to less computati...

A Computational Study about the Effect of Turbines Pitched Blade Attack Angle on the Power Consumption of a Stirred Tank

In this study, the stirring mechanism of shear-thinning fluids benefiting from four blades in turbulent flow is considered. The fluid is studied inside a stirred cylindrical tank with a flat bottom. The height of fluid is equal to the cylinder’s diameter and the impeller is positioned centrally. A CFD simulation has been carried out and three-dimensional turbulent flow is numerically analyzed u...