Virtual Network Embedding (VNE), which provides methods to assign multiple Networks (VN) a single physical Substrate (SN), is an important task in network virtualization. The main problem VNE the efficiency of assigning customers’ virtual requests substrate network. This known be Non-deterministic Polynomial-time hard (NP-hard) and heuristic solutions have been developed solve this kind problem...

although there are many potential benefits associated with the use of virtual product development teams, exploiting these benefits requires an appropriate management. managing virtual product development team is a critical issue as many of these teams fail to accomplish their goals. review of previous literature shows that body of knowledge in managing virtual product development teams is fragm...

Publications of recent years dealing with laboratory experiments of immersion freezing reveal uncertainties about the fundamentals of heterogeneous freezing nucleation. While it appears well accepted that there are two major factors that determine the process, namely fluctuations in the size and configuration of incipient embryos of the solid phase and the role of the substrate to aid embryo fo...

Network virtualization provides the ability to run multiple concurrent virtual networks over a shared substrate. However, it is challenging to design such a platform to host multiple heterogenous and often highly customized virtual networks. Not only high degree of flexibility is desired for virtual networks to customize their functions, fast packet forwarding is also required. This paper prese...

The coprophilous Dimargaris bacillispora is a rarely found and more rarely isolated microfungal species. In this study, we report the repeated observation and isolation of this fungus from a cave sediment used to rear cave-inhabiting isopods and springtails in the laboratory, originating from the Domica Cave, Slovakia. Dimargaris bacillispora was also observed and isolated from the faeces and c...

Though the service of shared virtual worlds is an active area of research, little effort has been made to optimize such systems for urban world spaces. Tracking the motion, action, and communication of thousands of users in a city requires a application of visibility for spatial and logical subdivision of updates. We propose herein the City-Level Optimizations for Virtual Environments (CLOVES) ...

We present a generic and flexible architecture to realize CloudNets: virtual networks connecting cloud resources with resource guarantees. Our architecture is federated and supports different (and maybe even competing) economical roles, by providing explicit negotiation and provisioning interfaces. Contract-based interactions and a resource description language that allows for aggregation and a...

We are building the XenoServer platform for global computing, a public infrastructure capable of safely hosting untrusted distributed services on behalf of uncooperative paying clients. Service components execute on one or more XenoServers within resource-managed Virtual Machines (VMs) which provide resource isolation, protection, and allow the execution of arbitrary applications and services. ...

This paper describes pMeasure, a tool for measuring large scale networks, particularly the Internet, from end to end. As the Internet grows in size and complexity, fine-grained, precise and timely measurements are needed to ensure its healthiness and ultimately benefit those mission-critical applications deployed on the Internet. The existing measurement infrastructures are unable to satisfy th...