This paper reports our experience in designing the executable object-oriented software process modelling language ESCAPE+. Starting with a flexible, OMT-like language, we extended the run-time system with specific pro...
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作者：
Bampis, E.Giannakos, A.Karzanov, A.Manoussakis, Y.Milis, I.LaMI
Université d'Evry Bonlevard des Coquibus 91025-Evry Cedex France Institute
for System Analysis 9 Prosp. Let Octyabrya 117312 Moscow Russia LRI
Bât 490 Université de Paris Sud 91405 Orsay Cedex France NTUA
Dep. of Electr. Engineering Division of Computer Science 9 Heroon Polytechniou str. 15773 Athens Greece
We present an intuitive and simple O(log2 n log φ) time, O(n2M(n)) processer parallel algorithm for finding a perfect matching in a planar graph, where n is the order, π is the number of the distinct perfect matchin...
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We present an intuitive and simple O(log2 n log φ) time, O(n2M(n)) processer parallel algorithm for finding a perfect matching in a planar graph, where n is the order, π is the number of the distinct perfect matchings of the graph and M(n) is the best sequential complexity of matrix multiplication of size n. The algorithm runs on a CRCW PRAM. Clearly, our algorithm belongs to the class NC if the number of perfect matchings is polynomially bounded in the size of the input graph.
In this work we have studied and characterized the impact-ionization-induced instabilities in the output characteristics of two-dimensional MESFET s. The instabilities appear as an increase of the output conductance, ...
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ISBN:
(纸本)2863322214
In this work we have studied and characterized the impact-ionization-induced instabilities in the output characteristics of two-dimensional MESFET s. The instabilities appear as an increase of the output conductance, CD. By performing a complete set of DC measurements at different temperature and electroluminescence measurements, in different bias conditions, we were able to correlate the kinks in the output characteristics with different impact ionization regimes, including the possible onset of a parasitic bipolar effect.
Hand gesture is one of the most natural and expressive ways for the hearing impaired. However, because of the complexity of dynamic gestures, most researches are focused either on static gestures, postures, or a small...
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Constant propagation and join reordering are two standard optimization techniques used for Datalog programs. These techniques have typically been studied indep.ndently of one another. However, in order to achieve cons...
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作者：
Chiodo, E.Menniti, D.Testa, A.Picardi, C.Elio Chiodo (1959) received the degree in Electronics Engineering in 1985
and the Ph.D. degree in Computational Statistics both from the University of Naplefltaly. He is a Researcher at the Department of Electrical Engineering of the University of Naples and a member of the Italian Statistical Society. His areas of interest include probabilistic methods applied to electric power systems analysis. (University of Naples Fedrrico 11. Electrical Engineering Dept.via Claudio 21 1-80125 Naplefltaly T +3981/7683226 Fax+3981/2396897) Daniele Menniti (1958) received the degree in Electrical Engineering from the University of Calabria. Cosenzataly and the Ph.D. degree in Electrical Engineering from the University of NapleslItaly
in 1984 and 1989 respectively. He is a researcher at the Electronic. Computer and Systems Science Department of the University of Calabria. Italy. Hiscurrent research interests concern electric power system analysis real-time control and automation. (University of Calabria Electronic Computer and Systems Science Dep. Arcavacataji Rende (CS). 1-87036 CosenzdItaly T +39984/494707. Fax +39984/4947 13) Alfredo Testa (1950) received the degree in Electrical Engineering from the University of Naples/Italy
in 1975. He is an Associate Professor in Electrical Power Systems at the Department of Electrical Engineering of the University of Naples. He is engaged in researches on electrical power systems reliability and harmonic analysis. (University of Naples Federico 11. Electrical Engineering Dep. via Claudio '2 1 1-80 I25 NapleslItaly T + 39 8 I/7 68 3'2 11. Fax+3981/2396897) Ciro Picardi (1949) received the degree in Electronics Engineering from the University of Naples/Italy
in 1975. He is currently Associate Professor in Process Control at the Department of Electronic Computer and System Science of the University of Calabria. Italy. His current research interests are in the area of electrical drives robotics neural networks and fuzzy control. (University of Calabria Electronic. Compu
An artificial‐neural‐network (ANN) application for steady‐state security evaluation of electrical power systems is presented. Such application is based upon a combined use of a multilayer back‐propagation neural n...
Scheduling of tasks onto multi-processors is an increasingly important problem in the simulation of avionics systems. The problem is difficult due to the many hard real-time constraints imposed on the schedule in the ...
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Scheduling of tasks onto multi-processors is an increasingly important problem in the simulation of avionics systems. The problem is difficult due to the many hard real-time constraints imposed on the schedule in the form of processor frame-time limits and latency requirements. In this paper, we present a solution to this real-time scheduling problem using simulated annealing techniques. The running time of the algorithm is fast enough for it to be applied in the rapid reconfiguration of simulation test benches in use at Boeing Flight systems Laboratory. Its efficacy is demonstrated using an example with 60 tasks communicating through 1800 common blocks and scheduled onto 6 processors under 4 latency constraints which achieved a utilization factor over 95%. Such an example can be scheduled in approximately 35 minutes of CPU time on an HP-Apollo 425 workstation.< >
A new multidisciplinary effort is linking research in the upper atmospheric and space, computer, and behavioral sciences to develop a prototype electronic environment for conducting team science worldwide. A real‐wor...
We report the results of a photoreflectance (PR) study of InGaAs/GaAs strained-layer quantum wells and superlattices (SLSs) grown by MBE on [111]B GaAs substrates. Under our measurement conditions, the PR spectra disp...
We report the results of a photoreflectance (PR) study of InGaAs/GaAs strained-layer quantum wells and superlattices (SLSs) grown by MBE on [111]B GaAs substrates. Under our measurement conditions, the PR spectra display features we can relate to the bandgaps of both materials and to optical transitions in the quantum structures. Using the photovoltaic effect to vary the surface electric field of our i-n+ and p+-i-n+ samples in a strictly contactless manner, we find optical transitions red-shifting with increasing intensity of illumination from a CW HeNe laser in [11 l]-grown structures, a well known effect which can be attributed to the strain-generated electric field (SGEF) present in these structures. We also find experimental support for the predicted effectiveness of free-carriers in screening the SGEF and thereby originating highly non-linear absorption.
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