This contribution points out the need to consider power back-off in the upstream direction when VDSL frequency plan alternatives are evaluated. It is shown that upstream power back-off, which is necessary in distributed topologies, can affect the bit rates achievable with any chosen frequency plan. Also shown is that certain power backoff methods result in achievable bit rates that are very clo...

There is growing impetus for a domestic climate policy that can provide meaningful reductions in emissions of CO2 and other greenhouse gases. In this article, I propose and analyze a scientifically sound, economically rational, and politically feasible approach for the United States to reduce its contributions to the increase in atmospheric concentrations of greenhouse gases. The proposal featu...

In this paper, we study the asymptotic profile of the steady state of a reactiondiffusion-advection model in ecology proposed in [13, 17]. The model describes the population dynamics of a single species experiencing a uni-directional flow. We show the existence of one or more internal transition layers and determine their locations. Such locations can be understood as the upstream invasion limi...

Using a mark–recapture technique in a small temperate stream, we described the movement of four fish species over a five-month period and developed a mathematical model that described the observed movement patterns. The movement distributions were generally leptokurtic, and two of the four species demonstrated some degree of upstream bias. There was little difference in movement among species o...

Small and medium enterprises (SMEs) play a vital role in Indian economy as more than 50% of country’s GDP is contributed by them. SMEs are also the backbone of manufacturing sector as they form critical upstream supply network to the large-scale firms and OEMs. Like their counterparts in other regions of world, Indian SME are characterized with family based businesses with loose manageABSTRACT