Some parallel applications do not require a precise imitation of the behaviour of the physically shared memory programming model. Consequently, certain parallel machine architectures have elected to emphasise different required coherency properties because of possible efficiency gains. This has led to various definitions of models of store coherency. These definitions have not been amenable t o...

iv v Summary The thesis was conducted during a period of six months at the University of Cali-In this thesis we revisit the classic slow coherency and area aggregation approach to model reduction in power networks. The slow coherency approach is based on identifying sparsely and densely connected areas of a network, within which all generators swing coherently. A timescale separation and singul...

A parametric study of nonlinear seismic response analysis of transmission line structures subjected to earthquake loading is studied in this paper. The transmission lines are modeled by cable element which accounts for the nonlinearity of the cable based on a real project. Nonuniform ground motions are generated using a stochastic approach based on random vibration analysis. The effects of mult...

In this paper we use wavelet coherency and phase-difference analysis to classify all Spanish provinces based on Monthly Total Mortgage data in each province and Quarterly Gross Domestic Product data in Spain. The information obtained using wavelet analysis leads us to propose two different classifications for the fifty-two Spanish provinces. First, we use the wavelet coherency level between two...

Intègre is a decision-support software specially designed for collective processes. Collecting all required information for decision making, Intègre harmonizes representations and processes collected data to check users’ decisions coherency. During their consultation, specialist doctors access to analysis’ results and to patients’ data, stored in their own databases or in administration’s syste...

This project applies coherency methods for dynamic analysis of power systems. It has been observed that in case of disturbances machines swing together, forming groups of coherent generators. In [1], a dynamic network reduction is described based on a slow-coherency method, aggregating coherent generators into one equivalent machine. In [2] it is demonstrated that such methods can also be used ...