Barium sulfate (barite) is one of the widely used weighting materials in the preparation of drilling fluid for deep oil and gas wells. Barite is not soluble in the regular solvents; such as, hydrochloric acid (HCl) and other acids. Therefore, in this study, we focused on evaluating the dissolution of the industrial barite particles in different chelating agents. Chelating agents; such as, dieth...

Some considerable damage to steel structures during the Hyogo-ken Nanbu Earthquake occurred. Among them, many exposed-type column bases failed in several consistent patterns, such as brittle base plate fracture, excessive bolt elongation, unexpected early bolt failure, and inferior construction work, etc. The lessons from these phenomena led to the need for improved understanding of column base...

This contribution presents a knowledge-based model of the agents’ mutual awareness (social knowledge) and justifies its role in various classes of applications of the concept of multi-agent systems. A tri-base acquaintance model (3bA) has been formalized and designed in order to limit explosive communication space in multi-agent systems. As a formal model of agent’s social behaviour knowledge a...

An agent is a computer system capable of flexible autonomous action in a dynamic, unpredictable and open environment. Agent technologies and approaches have the potential to greatly impact the lives and work of all of us. Some application domains where agent technologies will play a crucial role include: Ambient Intelligence, the seamless delivery of ubiquitous computing, continuous communicati...

In this paper, the effective parameters on the ductility demand of the seismically base isolated structure are investigated, and then a relation between the strength reduction factor and the target ductility is presented. The investigation has been conducted by modelling the base isolated structure as a two degree of freedom model in the OpenSees software, and the possibility of yielding in the...

In order for a model of rational agency to be used for multi-agent social interaction, the model must be extended to account for communicative behaviors that are ineecient for one agent, but which increase the eeciency of the interaction of two agents in a dialogue. In this paper, we argue that naturally occurring communicative behaviors are often directed at the resource limits of the other ag...

This paper discusses the impact of compensation schemes on housing agent performance. This study treats housing agents as subjects and distributed 867 questionnaires by mail. A total of 776 responses were retrieved, of which 510 were effective samples for a valid return rate of 66.5%. The feasible generalized least squares (FGLS) method was used for estimation. According to the empirical result...

Agent oriented software engineering (AOSE) is an emerging field in computer science  and  proposes some systematic ideas for multi agent systems analysis, implementation and maintenance. Despite the various methodologies introduced in the agent-oriented software engineering, the main challenges are defects in different aspects of methodologies. According to the defects resulted from weaknesses ...