To verify fixed-time constraints in grid workflow systems, the consistency and the inconsistency conditions have been defined in the conventional verification work. However, with a view of the run-time uncertainty of the activity completion duration, we argue that although the conventional consistency condition is fine, the conventional inconsistency condition is too rigorous and covers several...

The subspace-based state-space system identification techniques have been applied to different industrial applications with success for more than two decades [36, 10, 4, 1, 8, 27, 7, 14]. A quick look at these contributions leads to the conclusion that these accurate results are mainly obtained with collected measurements of good quality. It is now well-known that using persistently exciting in...

The major purpose of this article is to analyze the role of the "Agency Theory" in implementing effective control mechanisms. In effect, various control paradigms under the following situations are elaborated: a) When the agent's control system is merely based on the output under the condition of uncertainty; b) When the control mechanism is based on the output, and information about agent's ac...

Polyhydroxyalkanoates (PHA) producers have been found in a variety of ecological niche’s that are naturally or unintentionally exposed to high organic matter growth limiting substances such as dairy wastes, hydrocarbon contaminated sites, pulp and paper mill agricultural activated sludges treatment plants, rhizosphere, industrial effluents. Few them also create extracellular byproducts rhamnoli...

In this paper we propose a research model, set of constructs, and instrument for collecting data in China to investigate online behavior in the usage of file sharing technologies by music consumers. Recent studies associated with music download were focused, for the most part, on highly infrastructure-developed countries. Since technology maturity, market conditions, and economical situations i...

We realized a compact hybrid brain-computer interface (BCI) system by integrating a portable near-infrared spectroscopy (NIRS) device with an economical electroencephalography (EEG) system. The NIRS array was located on the subjects' forehead, covering the prefrontal area. The EEG electrodes were distributed over the frontal, motor/temporal, and parietal areas. The experimental paradigm involve...

the factors that have been influential in the damaging and destroying the iranian historical monuments can be divided into two categories: first, the natural phenomena such as floods, earthquakes, famines, and droughts; and second, human behavior that on some occasions had intentionally or unintentionally caused some damages to the historical monuments. the flawed policies of the rulers that ha...

Members of our modern society are faced with fast and ever-changing political, social, economical, technological and environmental situations. Consequently, it is expected that members of the society keep pace with these variable situations, and be able to adapt their skills and expertise. Thus, modern ICT-based learning approaches are required and E-Learning 2.0 is a promising and interesting ...