We study the rack-aware storage system where all nodes are organized in racks and within each rack can communicate freely without taxing bandwidth. Rack-aware regenerating codes (RRCs) were proposed for minimizing repair bandwidth single erasures. In initial setting of RRCs, a node requires participation remaining containing failed as well large number helper no failures. Consequently, may be i...

Manual materials handling of heavy loads is a common cause of low back disorders. The manual manipulation of a heavy load may be made more comfortable by constraining the load to move along a guide. If the load is constrained, the human operator can provide forces in directions that are comfortable while the frictionless guide directs the motion of the load to the goal con guration. In this pap...

It has become clear in the last few years that there is a trend towards integrated digital services. P d e l to the development of public Integrated Services Digital Network (ISDN) is service integration in the local area (e.g. a campus, a building, an aircraft). The types of services to be integrated depend very much on the specific local environment. However, applications tend to generate dat...

We consider three randomized schemes for load balancing among a xed number, N , of resources, and analyze them in the heavy tra c limit. The rst is join the shortest queue, where arrivals are routed to the shortest among d randomly chosen queues, where d ∈ {2, . . . , N}. The second is redundancy routing, where jobs are replicated d times, routed simultaneously to d randomly chosen queues, and ...

A rack, which is the algebraic distillation of two of the Reidemeister moves, is a set with a binary operation such that right multiplication is an automorphism. Any codimension two link has a fundamental rack which contains more information than the fundamental group. Racks provide an elegant and complete algebraic framework in which to study links and knots in 3{manifolds, and also for the 3{...

Hydroxymethylglutaryl (HMG) CoA-reductase inhibitors, or statins, play an important role in the primary and secondary prevention of coronary heart disease. By inhibiting the enzyme HMG-CoA reductase, statins lower the production of cholesterol in the liver, resulting in lower LDL cholesterol levels. Besides lowering cholesterol levels, statin therapy slows down plaque progression and in some pa...

Energy efficiency has become a very important concern for enterprise data centers due to the significant cost on electricity. To improve the energy efficiency of data centers, researchers and practitioners have proposed enormous work to reduce the energy consumption of data centers. Most of previous work focus on reducing the energy consumption of IT equipment; however, the power losses caused ...