The advent of all-sky facilities, such as the Neil Gehrels Swift observatory, All Sky Automated Search for Supernovae (ASAS-SN), eROSITA and Gaia has led to a new appreciation importance transient sources in solving outstanding astrophysical questions. Identification catalogue cross-matching transients been eased over last two decades by Virtual Observatory but we still lack client capable prov...

Some servers are to be located at nodes of a network. Demand for services of these servers is located at each node and a subset of the nodes is to be chosen to locate one server in each. Each customer selects a server with a probability dependent on distance and a certain amount of benefit is achieved after giving service to the customer. Customers may waive receiving service with a known prob...

objectives the overall goal of this study was to carry out a set of comparative analyses of arsr gene in plasmid r773 and bacterial chromosome from escherichia coli bl-21(de3). methods pdb and ncbi databases and chimera, mega4, clc main workbench software and 3d-jigsaw and embl-ebi servers were applied to perform this study. by using these software and servers, multiple analyses including deter...

A multiple server setting is considered, where each has tunable speed, and increasing the speed incurs an energy cost. Jobs arrive to a single queue, job two types of sub-tasks, map reduce, precedence constraint among them: any reduce task can only be processed once all tasks have been completed....

Energy-efficient management is key to reduce operational cost and environmental contamination in modern data centers. Energy renewable energy utilization are strategies optimize consumption high-performance computing. In any case, understanding the power behavior of physical servers datacenter fundamental implement energy-aware policies effectively. These should deal with possible performance d...