Quality-of-Service(QoS) is a set of service requirements to be met by the network while transporting a data flow in real-time communication systems. Many real-time sources generate traffic with variable rates. In this paper, we studied a class of soft real-time applications whose bandwidth requirements are random variables. We defined two models for soft real-time communications: the dropping m...

In this paper we find out the evolution formula for first nonzero eigenvalue of weighted p-Laplacian operator acting on space functions under Cotton flow a closed Riemannian 3-manifold M3.

This paper describes the design of a two-level hierarchical production scheduling engine, which captures the industrial practice of mass production semiconductor fabrication factories (fabs). The two levels of the hierarchy consist of a mid-term scheduler and a short-term scheduler, and are aimed at achieving coordination between the fab-wide objectives and local shop-floor operations. The mid-...

Combined forecasting has attracted lots of attention in the hydrological community recently. In this study, an autoregressive and moving average model, a periodic AR model, a normal multi-layer perceptron artificial neural network model and a periodic artificial neural network model are fitted to a univariate daily stream flow process for the upper Yellow River in China to forecast stream flows...

We discuss the physics of embolic stroke using a minimal model of emboli moving through the cerebral arteries. Our model of the blood flow network consists of a bifurcating tree into which we introduce particles (emboli) that halt flow on reaching a node of similar size. Flow is weighted away from blocked arteries inducing an effective interaction between emboli. We justify the form of the flow...

The class based weighted fair queueing (WFQ) is applied in a lot of computer and communication systems. It is a popular way to share a common resource. Its efficient analytical solution is an open question for a long time. Different solutions were proposed, using complex analysis or numerical techniques. But all of these methods have their limits in usability. In this paper we present a very si...