Two new algorithms, SPMF and SPMF, for finding the complete chain of solutions of the selection model are presented in this paper. A special kind of residual path, called a λ-directed simple residual path, is identified to be the only kind of residual path necessary for SPMF. By augmenting the right amount of flows along the λ-directed simple residual paths, the new algorithms are monotone conv...

Datacenter networks require efficient multi-path load balancing to achieve high bisection bandwidth. Despite much progress in recent years towards addressing this challenge, a load balancing design that is both simple to implement and resilient to network asymmetry has remained elusive. In this paper, we show that flowlet switching, an idea first proposed more than a decade ago, is a powerful t...

HOMER SMITH POSTULATED the modern day glomerulus to have evolved as a mechanism to rapidly remove water from the body (13). Smith describes the evolution of the mammalian glomerulus in terms of its function as a high-pressure filter, powered by the beating heart, that separates water from other constituents of the plasma, chiefly plasma proteins and cells (13). The extreme pressures needed to e...

This article presents a novel control scheme for achieving optimal power balancing and congestion management in electrical power systems via nodal prices. We develop a dynamic controller that guarantees economically optimal steady-state operation while respecting all line flow constraints in steady-state. A benchmark example illustrates the effectiveness of the proposed control scheme. 2009 Els...

Overview We present • a problem setting for dynamic load balancing on the Internet as Grid, • an adaptive method according to initial load: the optimal flow is directly obtained, the conditions of migration for the bottleneck edges are relaxed by bypasses, • simulation results show the number of rounds of the migration is decreased by adaptive bypasses on a cactus.

A genetic algorithms is applied to find a maximum flow from the source to sink in a weighted directed graph, where the weight associated with each edge represents its flow capacity in one direction. The maximum flow problem appears to be more challenging in applying genetic algorithms than many other common graph problems because of its several unique characteristics. For example, a flow at eac...

We developed a microfluidic analogue of the classic Wheatstone bridge circuit for automated, real-time sampling of solutions in a flow-through device format. We demonstrate precise control of flow rate and flow direction in the "bridge" microchannel using an on-chip membrane valve, which functions as an integrated "variable resistor". We implement an automated feedback control mechanism in orde...