Capitalizing and diffusing experience about multiagent systems are two key mechanisms the classical approach of methods and tools can’t address. Our hypothesis is that, among available techniques that collect and formalise experience, design patterns are the most able technique allowing to express the agent concepts and to adapt itself to the various MAS developing problems. In this paper, we p...

Alliances represent a variety of governance contexts, and hence provide a rich empirical setting for studying the value-creation mechanisms of Information Technology (IT). We examine the influence of IT investment and flexible IT infrastructure, through Service Oriented Architecture (SOA), in the effect of alliance activity on firm performance. We find that the marginal contribution of each joi...

Capitalising and diffusing experience about multiagent systems are two key mechanisms the classical approach of methods and tools can’t address. Our hypothesis is that, among available techniques that collect and formalise experience, design patterns are the most able technique allowing to express the agent concepts and to adapt itself to the various MAS developing problems. In this paper, we p...

in the present study, field oriented control of step motor implementation has been analyzed sothat it can make a sensorless control. efficiency and facilities of step motor is more than othertypes of electromotor. therefore, the numbers of mechanisms and different types of turning canbe made into them. also controlling these motors is easier than other available motors. steppingmotor has been d...

Mature information systems grow old disgracefully as successive waves of hacking result in accidental architectures which resist the reflection of on-going business process change. Such petrified systems are termed legacy systems. Legacy systems are simultaneously business assets and business liabilities. Their hard-won dependability and accurate reflection of tacit business knowledge prevents ...

background research in the area of herbal psychopharmacology has clearly improved in recent decades. self-administration of herbal medicines has been the most popular therapeutic alternative to standard medicine. objectives since the extract of echium amoenum exhibits an anxiolytic effect, the aim of this study is to evaluate the anxiolytic and hypnotic effects in mice of the aqueous and ethano...