نتایج جستجو برای: coherent generators clustering

تعداد نتایج: 184386  

2009
John Kabouris Fotis D. Kanellos

Large penetration of Renewable Energy Sources (RES) impacts Energy Supply Industry (ESI) in many aspects leading to a fundamental change in electric power systems. It raises a number of technical challenges to the Transmission System Operators (TSOs), Distribution System Operators (DSOs) and Wind Turbine Generators (WTG) constructors. This paper aims to present in a thorough and coherent way th...

M. Momennezhad, R. Sadeghi, S.R. Zakavi,

Background: 99mTc is a widely used radioisotope in nuclear medicine centers which is obtained by elution from Mo-99/Tc-99m generators. Usually the generators are either supplied by the Iran Atomic Energy Agency or by private companies from foreign countries. In this study we have measured 99Mo contamination in 99mTc elute from different generators in a period of one year. Materials and...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
Noam Slonim Gurinder Singh Atwal Gasper Tkacik William Bialek

In an age of increasingly large data sets, investigators in many different disciplines have turned to clustering as a tool for data analysis and exploration. Existing clustering methods, however, typically depend on several nontrivial assumptions about the structure of data. Here, we reformulate the clustering problem from an information theoretic perspective that avoids many of these assumptio...

2008
Ángel Rivas Alfredo Luis

We elaborate on a Hilbert-Schmidt distance measure assessing the intrinsic metrological accuracy in the detection of signals imprinted on quantum probe states by signal-dependent transformations. For small signals this leads to a probe-transformation measure Λ fully symmetric on the probe ρ and the generator G of the transformation Λ(ρ,G) = Λ(G, ρ). Although Λ can be regarded as a generalizatio...

2008
R. Chakrabarti J. Van der Jeugt

It is known that the defining relations of the orthosymplectic Lie superalgebra osp(1|2n) are equivalent to the defining (triple) relations of n pairs of paraboson operators bi . In particular, the “parabosons of order p” correspond to a unitary irreducible (infinite-dimensional) lowest weight representation V (p) of osp(1|2n). Recently we constructed these representations V (p) giving the expl...

2007
Markus Voelter Iris Groher Bernd Kolb

Building embedded systems using model-driven development is highly desirable for a number of reasons, among them performance, penalty free abstraction, architecture enforcement, and global constraint evaluation. However, embedded systems are often built in several variants. It is thus essential to be able to express variations of systems in a coherent way, even when the system is built using mo...

2004
Yongzheng Zhang A. Nur Zincir-Heywood Evangelos E. Milios

Effectively summarizing Web page collections becomes more and more critical as the amount of information continues to grow on the World Wide Web. A concise and meaningful summary of a Web page collection, which is generated automatically, can help Web users understand the essential topics and main contents covered in the collection quickly without spending much browsing time. However, automatic...

1993
D. Ellinas

A method for obtaining complex analytic realizations for a class of deformed algebras based on their respective deformation mappings and their ordinary coherent states is introduced. Explicit results of such realizations are provided for the cases of the q-oscillators (q-WeylHeisenberg algebra) and for the suq(2) and suq(1, 1) algebras and their co-products. They are given in terms of a series ...

Journal: :Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology 2003
Christian Wienbruch Stephan Moratti Thomas Elbert Ulrike Vogel Thorsten Fehr Johanna Kissler August Schiller Brigitte Rockstroh

OBJECTIVE Focal slow waves in the delta and theta frequency range frequently appear in psychopathological conditions. Due to their focal nature they can be localized by dipole modeling. We previously reported regional clustering of slow waves in temporal and parietal cortex of schizophrenic patients whereas such activity is largely absent in normals. Here we examine, to what extent distribution...

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