ultimate limits of an open pit, which define its size and shape at the end of the mine’s life, is the pit with the highest profit value. a number of algorithms such as floating or moving cone method, floating cone method ii and the corrected forms of this method, the korobov algorithm and the corrected form of this method, dynamic programming and the lerchs and grossmann algorithm based on grap...

Optical burst switching (OBS) [1] is a promising all-optical data transport technique to efficiently use the bandwidth offered by wavelength-division multiplexing (WDM) technology. An important issue in OBS networks is how to support quality of service (QoS). Despite the bandwidth availability, a link has at most few tens of wavelengths nowadays. Once, a burst occupies one wavelength, or a frac...

*Correspondence: [email protected] Department of Physics, ETH Zürich, Zürich, 8093, Switzerland Abstract One of the central challenges in the development of parametric amplifiers is the control of the dynamic range relative to its gain and bandwidth, which typically limits quantum limited amplification to signals which contain only a few photons per inverse bandwidth. Here, we discuss the c...

The Internet uses a window-based congestion control mechanism in TCP (Transmission Control Protocol). In the literature, there have been a great number of analytical studies on TCP. Most of those studies have focused on the statistical behavior of TCP by assuming a constant packet loss probability in the network. However, the packet loss probability, in reality, changes according to packet tran...

In this paper, we investigate joint provision of connection-level QoS (in terms of the new call blocking probability and the handoff dropping probability) and packet-level QoS (in terms of the delay and packet loss probability). A dynamic call admission control (CAC) scheme for realistic wireless multimedia VBR traffic is presented. The proposed CAC scheme can optimize the packet-level QoS unde...

At freeway bottlenecks shock waves may appear. These shock waves result in longer travel times and in sudden, large variations in the speeds of the vehicles, which could lead to unsafe and dangerous situations. Dynamic speed limits can be used to eliminate or at least to reduce the effects of shock waves. However, in order to prevent the occurrence of new shock waves and/or negative impacts on ...