Fading broadcast channels have been studied extensively over the past 30 years and the Shannon capacity of these channels is well established. This paper examines the Shannon capacity of two-user fading broadcast channel using superposition coding and assuming perfect channel information at both the receiver and transmitter with the additional constraint of maintaining minimum data rates for bo...

Actin is one of the most abundant proteins in eukaryote cells, which forms a double stranded filament. The actin filament is not only a main component of the cytoskeleton, but also acts as a motor protein which moves toward one specific end, the barbed end, driven by polymerization at the barbed end and depolymerization at the other end, the pointed end, without any associated proteins. This mo...

We present new analytical expressions for minimum energy consumption (1 law) and minimum entropy production, or lost work (2 law), in complex distillation arrangements. These simple, but exact, expressions apply to ideal mixtures and an infinite number of stages, and the relative volatility is the only required component property. The simple Vmin-diagram is shown to be very useful in evaluating...

Sensors have been increasingly used for many ubiquitous computing applications such as asset location monitoring, visual surveillance, and human motion tracking. In such applications, it is important to place sensors such that every point of the target area can be sensed by more than one sensor. Especially, many practical applications require 3-coverage for triangulation, 3D hull building, and ...