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Nowadays, power consumption of data centers has huge impacts on environments. Researchers are seeking to find effective solutions to make data centers reduce power consumption while keep the desired quality of service or service level objectives. Virtual Machine (VM) technology has been widely applied in data center environments due to its seminal features,(More)
—Provisioning random access functions in peer-to-peer on-demand video streaming is challenging, due to not only the asynchronous user interactivity but also the unpre-dictability of group dynamics. In this paper, we propose VMesh, a distributed peer-to-peer video-on-demand (VoD) streaming scheme which efficiently supports random seeking functionality. In(More)
IEEE 802.11 wireless local area networks (WLANs) are widely deployed nowadays. With traditional layered architecture, current WLAN adopts functional layer partitioning and aims at optimization in individual layers. However, in a highly dynamic and media sharing wireless environment, the capacity enhancement at physical layers may not necessarily benefit the(More)
A restriction fragment length polymorphism in codon 72 of the p53 gene has been implicated in lung cancer risk, although the functional significance of the polymorphism has not been determined. This association was examined in 109 lung cancer cases (67 African-American and 42 Mexican-American) and 114 controls (74 African-American and 40 Mexican-American)(More)
Epileptogenesis following traumatic brain injury (TBI) is likely due to a combination of increased excitability, disinhibition, and increased excitatory connectivity via aberrant axon sprouting. Targeting these pathways could be beneficial in the prevention and treatment of posttraumatic epilepsy. Here, we tested this possibility using the novel(More)
Wireless broadcast is very suitable for delivering information to a large user population. In this paper, we concentrate on data allocation methods for multiple broadcast channels. To the best of our knowledge, this is the first allocation model that takes into the consideration of items' access frequencies, items' lengths. and bandwidth of different(More)
—We consider using traceroute-like end-to-end measurement to infer the underlay topology for a group of hosts. One major issue is the measurement cost. Given hosts in an asymmetric network without anonymous routers, traditionally full (1) traceroutes are needed to determine the underlay topology. We investigate how to efficiently infer an underlay topology(More)
In cloud data centers, different mapping relationships between virtual machines (VMs) and physical machines (PMs) cause different resource utilization, therefore, how to place VMs on PMs to improve resource utilization and reduce energy consumption is one of the major concerns for cloud providers. The existing VM placement schemes are to optimize physical(More)
— Providing random access function in peer-to-peer on-demand video streaming is a challenging task, due to not only the asynchronous user interactivity but also the unpre-dictability of group dynamics. In this paper, we propose VMesh, a distributed peer-to-peer video-on-demand (VoD) streaming scheme which efficiently supports random seeking functionality.(More)