This paper presents and analyzes a new dynamic element matching technique for low-harmonic distortion digitalto-analog conversion. The benefit of this technique over the prior art is a significantly reduced hardware complexity with no reduction in performance. It is particularly appropriate for applications such as direct digital synthesis (DDS) in wireless communications systems, where low har...

Der Beitrag gibt einen kurzen Überblick über die methodischen Grundlagen zur Ermittlung künftiger Potentiale zur Reduktion der diffusen N-Austräge aus den Agrarflächen in Sachsen-Anhalt. Dargestellt werden der generelle Lösungsweg, Aspekte der EDV-technischen Umsetzung und die erreichten Ergebnisse. Das diesem Beitrag zugrunde liegende Vorhaben wurde durch das Ministerium für Landwirtschaft und...

A cellular automaton conceived as a simple model of disease spreading is investigated. We show that the steady-state of the model is described by a spatial organization of the infectious individuals on fronts and undamped temporal oscillations in the number of infectious individuals. This behaviour is observed both for a deterministic and a stochastic input of susceptible individuals, hence sho...

The ability to customize a players avatar (their graphical representation) is one of the most popular features of online games and graphical chat environments. Though customizing appearance is a common ability in most games, creating tools for customizing a character’s behaviour is still a difficult problem. We propose a methodology, based on direct manipulation, that allows players to specify ...

eHealth investments from developed countries to developing countries are expected to follow the emerging trend of eHealth for meeting global health problems. However, eHealth industry from developed countries will need to learn to make this impending venture a ‘win-win’ situation with profitable return on investments. This short paper highlights some of these challenges that must be overcome in...

We propose a new protocol of implementing continuous-variable quantum state transfer using partially disembodied transport. This protocol may improve the fidelity at the expense of the introduction of a semiquantum channel between the parties, in comparison with quantum teleportation using the same strength of entanglement. Depending on the amount of information destroyed in the measurement, th...

In ecommerce, a product/service supplier with an Internet direct channel can sell through both its own direct channel and independent online retailers’ sites. The competition between the direct channel and the independent retailer’s channel has received significant research attention, however, little has been investigated on the impact of direct channel on the competition in wholesale market wh...