This paper examines the effects of using parallel TCP flows to improve end-to-end network performance for distributed data intensive applications. A series of transmission experiments were conducted over a widearea network to assess how parallel flows improve throughput, and to understand the number of flows necessary to improve throughput while avoiding congestion. An empirical throughput expr...

let $r$ be a commutative ring with zero-divisor set $z(r)$. the total graph of $r$, denoted by$t(gamma(r))$, is the simple (undirected) graph with vertex set  $r$ where two distinct vertices areadjacent if their sum lies in $z(r)$.this work considers minimum zero-sum $k$-flows for $t(gamma(r))$.both for $vert rvert$ even and the case when $vert rvert$ is odd and $z(g)$ is an ideal of $r$it is s...

This paper begins by examining the pattern of capital flows first to low-income countries, and then to emerging economies. In both cases, we see a dramatic collapse in the last several years. The evolving determinants of these trends in FDI flows (the principal category of private flows to low-income countries) and other capital flows are analysed. The behaviour of flows to emerging economies h...

This paper is about analyzing internet traffic flows for early elephant flow detection. These elephant flows provoke problems in the quality of service of internet traffic. When we can detect these elephant flows in an earlier stage we can take actions against these flows to keep up the quality of service. With this in mind we create a method to quickly identify elephant flows in internet traff...

daily discharge data of 12 hydrometric recording stations in atrak river basin were manipulated to calculate low flows for 7-day duration for studying hydrological drought using regional analysis method. using regression models, the low flows for 7-days duration of 10-year return period were calculated and regional low flows were estimated for 20 stations. daily data in each station used to sim...

in this paper disposition effect, selling winners and holding losers, in tehran stock exchange (tse) investment companies and its effect on these companies’ cash flows and performance using odean model has been reviewed and investigated. research findings show that the realized profit ratio is %19 higher than the realized loss ratio in all of investment companies in tse. this mean there is a be...

In this paper, two-dimensional and axisymmetric, time dependent transonic and supersonic flows over a projectile overtaking a moving shock wave are considered. The flow is simulated numerically by solving full time averaged Navier-Stokes equations. The equations are linearized by Newton approach. The roe’s flux splitting method, second order central difference scheme for the diffusion terms, an...

Prior studies of Internet traffic have considered traffic at different resolutions and time scales: packets and flows for hours or days, aggregate packet statistics for days or weeks, and hourly trends for months. However, little is known about the long-term behavior of individual flows. In this paper, we study individual flows (as defined by the 5-tuple of protocol, source and destination IP a...

Substances may enter the economy and the environment through both intentional and non-intentional flows. These non-intentional flows, including the occurrence of substances as pollutants in mixed primary resources (metal ores, phosphate ores and fossil fuels) and their presence in re-used waste streams from intentional use may have environmental and economic consequences in terms of pollution a...