The organization of resources/peers in communities is suggested to be an efficient way for resource discovery, but effectiveness of proposed communities depends on the active role and responsibility of a “Community Coordinator”. Communities are pools of diverse peers/services sharing and controlling resources and which have “agreed” to co-operate to enhance their usability; such co-operation ne...

Virtualization can enhance the functionality and ease the management of current and future Grids by enabling ondemand creation of services and virtual clusters with customized environments, QoS provisioning and policy-based resource allocation. In this work, we consider the use of virtual machines (VMs) in a data-center environment, where a significant portion of resources from a shared pool ar...

Nuclear detectors for x-ray and gamma-ray spectroscopy imaging are a vital tool in many homeland security, medical imaging, astrophysics other applications. Most of these applications require room-temperature operation due to the operational constraints imposed by cryogenic cooling system. CdZnTe (CZT) has been main material with desired detection properties, CZT crystals have used commercially...

The intense use of Information technologies in various functions caused many changes on organizations. The utmost in terms of technology usage are the virtual organizations: operating with virtual processes globally, by means of networks. This paper has the objective to present organizational theories and try to identify aspects which can be applied to virtual organizations and the ones which n...

independently of historical and socio cultural contexts, does not exist (Barnard, 1998). But, even if designing, as any other activity, is constrained by the social and cultural role assigned to the designer in a given society (Dormer, 1990; Downton, 2003; Manzini, 1993), that does not mean that we cannot present a general So, although there are different areas of intervention for the designer,...

In the current fast-paced world, organizations do not have time to postpone ideas due to the lack of suitable technical and scientific supports that can help them in a rapid connection establishment in order to develop collaborative works. This paper presents a methodology that aids the user to find the appropriated performance indicators that may be used to compare and after to suggest a suita...

The effective creation of Virtual Enterprises emerges of a previous work and environment called recently as Virtual Organisations Breeding Environment. The framework here proposed is one of the results of five years research project in the field of Collaborative Network Organisations. This paper describes a framework to create and support the Virtual Enterprises life cycle in the mould and die ...