Supply networks existing today in many industries can behave as complex adaptive systems making them more difficult to analyze and assess. Being able to fully understand both the complex static and dynamic structures of a complex adaptive supply network (CASN) are key to being able to make more informed management decisions and prioritize resources and production throughout the network. Previou...

background global health partnerships have grown rapidly in number and scope, yet there has been less emphasis on their evaluation. gavi, the vaccine alliance, is one such public-private partnership; in gavi-eligible countries partnerships are dynamic networks of immunization actors who work together to support all stages and aspects of gavi support. this paper describes a conceptual framework ...

The maintenance of complex systems is a discipline that requires great knowledge and great experience. These factors are, unfortunately, not enough: the opportunity to model the system to be maintained and to represent it in the form of a mathematical and probabilistic model, can’t be disregarded at all. These composite systems, moreover, are often subject to problems of uncertainty and must op...

A generalized simplified model for describing the dynamic behavior of distributed parameter systems is proposed. The various specific characteristics of gain and phase angle of distributed parameter systems are investigated from frequency response formulation and complex plane representation of the proposed simplified model. The complex plane investigation renders some important inequality cons...

Networks are ubiquitous in science, serving as a natural representation for many complex physical, biological, and social phenomena. Significant efforts have been dedicated to analyzing such network representations to reveal their structure and provide some insight towards the phenomena of interest. Computational methods for analyzing networks have typically been designed for static networks, w...

When dynamic network exhibits extremely complex behavior and keeps on changing all the time, the energy efficiency is the most important key-point of routing algorithm. Many empirical measurements are inadequate to represent dynamic networks. However, the quotient space theory is an in-depth treatment of hierarchical problem solving, and powerful abilities of representation with different granu...

German Aerospace Center (DLR), Fraunhofer FOKUS.cats, and Tesat-Spacecom have designed a future multimedia ATM-based LEO satellite network. Part of the development was an adaptive MAC and FEC scheme which is presented in this paper. The FEC implementation switches on the fly during a connection between several FEC and modulation modes to guarantee a maximum ATM cell error rate of 10−6. In order...