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Simulation for the estimation of the survival probabilities of enterprises and banks within a prolonged duration of the debt cricis
No full textABSTRACT
In the current paper, we study the stability and the survival probabilities of enterprises and banks within a prolonged duration of the debt-crisis, with Monte Carlo simulation. We utilize historical data from banks and enterprises within the debt-crisis to define crisis-variability and crisis-average values of input parameters of the simulation. We introduce the concept of equities maximum draw-down as dynamic survival indicator. Finally we estimate the survival probabilities of enterprises and banks within a prolonged duration of the debt crisi
Τα Νέα της Βιβλιοθήκης Πρέβεζας
No full textΤεύχος 11) Στατιστικά στοιχεία χρήσης υπηρεσιών, σελ. 1. 2) Αφιέρωμα: ΕΚΕΒΙ, σελ. 2. 3) Νέα αποκτήματα της Βιβλιοθήκης, σελ. 3. 4) Χρήσιμες πηγές πληροφόρησης και ιστοσελίδες, σελ. 4
Actuator location and voltages optimization for shape control of smart meams using genetic algorithms
Get PDFThis paper presents a numerical study on optimal voltages and optimal placement of piezoelectric actuators for shape control of beam structures. A finite element model, based on Timoshenko beam theory, is developed to characterize the behavior of the structure and the actuators. This model accounted for the electromechanical coupling in the entire beam structure, due to the fact that the piezoelectric layers are treated as constituent parts of the entire structural system. A hybrid scheme is presented based on great deluge and genetic algorithm. The hybrid algorithm is implemented to calculate the optimal locations and optimal values of voltages, applied to the piezoelectric actuators glued in the structure, which minimize the error between the achieved and the desired shape. Results from numerical simulations demonstrate the capabilities and efficiency of the developed optimization algorithm in both clamped−free and clamped−clamped beam problems are presented
Coarse grained parallelism optimization for multicore architectures: The ALMA project approach
Get PDFBook title: Reconfigurable Computing: Architectures, Tools and Applications
DOI: 10.1007/978-3-642-36812-7_33In this paper, the coarse grained parallelism optimization step of the ALMA EU FP7 project is discussed. The current results look promising, as the possibility to use Integer Programming and provide optimal results to the problem model seems feasible and efficient
Τα Νέα της Βιβλιοθήκης Πρέβεζας
No full textΤεύχος 31) Η δραστηριότητα της Βιβλιοθήκης, σελ.1. 2) Ανοικτή πρόσβαση στη δημόσια πληροφορία, σελ. 2. 3) Ελληνικά περιοδικά ανοικτής πρόσβασης, σελ. 3. 4) Παρουσίαση: Ο διαμεσολαβητής του επενδυτή, σελ. 4
Coarse-Grain optimization and code generation for embedded multicore systems
Get PDFDOI: 10.1109/DSD.2013.48As processors and systems-on-chip increasingly become multicore, parallel programming remains a difficult, time-consuming and complicated task. End users who are not parallel programming experts have a need to exploit such processors and architectures, using state of the art fourth generation of high programming languages, like Scilab or MATLAB. The ALMA toolset addresses this problem by receiving Scilab code as input and produces parallel code for embedded multiprocessor systems on chip, using platform quasi-agnostic optimisations. In this paper, coarse grain parallelism extraction and optimization issues as well as parallel code generation for the ALMA toolset are discussed
Coarse grain parallelization using Integer Programming
Get PDFThere is an increasing need for automatic tools and
techniques for application parallelization. Within the ALMA
toolset, programs written in Scilab are automatically parallelized
for execution on embedded multicore platforms. In this paper,
key parts of the coarse grain parallelism optimization are
presented. The coarse grain parallelism optimization considers
the hierarchical task graph of a program and produces an
optimized parallel schedule
How do managers perceive the effects of telecommunications’ liberalisation in Greece?
No full textThe purpose of this paper is to investigate the perceptions of
managers concerning the impact of institutional liberalisation of
telecommunication industry on market functioning and business growth. The
empirical analysis is based on a survey of 44 telecommunication companies
operating for the period 2001 to 2009 in the Greek economy. These are the
most important firms of the specific industry. The findings indicate that
liberalisation causes a substantial increase of competition between public and
private companies. Price policy and marketing policy are the main competition
factors. However, several barriers such as difficult access to infrastructure
telecommunication networks for private entrants and not sufficient compliance
of the state-owned dominant company with the rules of healthy competition
hamper competition seriously. Overall, the managers of the sample firms reveal
the evolution of the private sector and the new ‘business atmosphere’ in the
Greek telecommunication industry as a result of liberalisation and privatisation
policies which are becoming very acute in Greece to face the current crisis
What are the necessary conceptual changes in physics for discovering of the energy of the future.
No full textPublihed in the proceedings (http://innovation-conferenceepirus.
blogspot.gr/2015/01/proceedings-of-1st-international.html )of the above
conference, Part B, pages 104-111.Abstract
In this paper we outline the necessary conceptual changes, in fundamental university physics,
so as to support the emerging invention of the energy of the future. We give also a short
historic and epistemology review of the development of physics the last few centuries