This paper describes some recent research on PVM (Parallel Virtual Machine). One of the new features added in PVM 3.0 is multiprocessor integration. This is the ability to run PVM applications on the nodes of several diierent distributed memory multiprocessors as though they constitute one large parallel computer. We describe how multiprocessor integration is accomplished in PVM 3.0 and illustr...

Virtual Reality is an exciting new area of human-computer interaction. Its use depends critically on having extremely low response times of the virtual environment to user interaction. The problem of reducing the lag between the user’s head position or orientation changing and the updating of the displayed view has been described as one of the grand challenges of computing. The techniques descr...

Virtual Reality is an exciting new area of human-computer interaction. Its use depends critically on having extremely low response times of the virtual environment to user interaction. The problem of reducing the lag between the user’s head position or orientation changing and the updating of the displayed view has been described as one of the grand challenges of computing. The techniques descr...

iran’s industry has had a considerable number of difficulties to perform so well as was expected in the post – revolutionary era. unfavorable legal, political environments combined with eight –year imposed war may be singled out as the root causes of such performances. however, this paper argues that our industry’s lack of realization of its dire need to adapt to the emerging unprecedented envi...

Editor’s note: This editorial is part of a series written by editors and co-authored with a senior executive, thought leader, or scholar from a different field, to explore new content areas and grand challenges with the goal of expanding the scope, interestingness, and relevance of the work presented in the Academy of Management Journal. The principle is to use the editorial notes as “stage set...

The paradigm of Interoperability Service Utility (ISU) is considered as one of the grand challenges in research of Enterprise Interoperability. In this paper, we discuss on the relevance and impact of the current ISU research to the semantic interoperability in general and propose an original architecture for implementation of the Semantic Interoperability Service Utilities (S-ISU). The propose...

This paper describes how SHARE (Sharing Hosted Autonomous Research Environments) satisfies the criteria of the Elsevier 2011 Executable Paper Grand Challenge. This challenge aims at disseminating the use of systems that provide reviewers and fellow scientists a convenient way to reproduce computational results of research papers. This can involve among others the calculation of a number, the pl...