Search results for " PRIN"
showing 10 items of 1809 documents
Digital generation of multivariate wind field processes
2001
Abstract A very efficient procedure for the generation of multivariate wind velocity stochastic processes by wave superposition as well as autoregressive time series is proposed in this paper. The procedure starts by decomposing the wind velocity field into a summation of fully coherent independent vector processes using the frequency dependent eigenvectors of the Power Spectral Density matrix. It is shown that the application of the method allows to show some very interesting physical properties that allow to reduce drastically the computational effort. Moreover, using a standard finite element procedure for approximating the frequency dependent eigenvectors, the generation procedure requi…
L’Accademia degli Ortolani (1543-1545). Eresia, stampa e cultura a Piacenza nel medio Cinquecento
2011
Unica Accademia piacentina del Rinascimento, il cenacolo ortolano è una vera e propria lente attraverso cui è possibile leggere fenomeni di larga scala e di più ampio interesse: le ragioni del proliferare delle accademie nella penisola italiana nel medio Cinquecento, la circolazione libraria nell’Italia centro settentrionale, il ruolo dell’intellettuale in quell’epoca, e infine il testo a stampa come veicolo di idee non ortodosse. Il mondo culturale non universitario nel XVI secolo italiano si manifesta come ruolo complesso: l’accademia, di fatto, è una struttura elastica che si piega alle esigenze della società. The only Piacenza Academy of the Renaissance, the ortolan cenacle is a real le…
Gülru Necipoğlu, Alina Alexandra Payne (eds.), Histories of ornament: from global to local (Princeton, Oxford, Princeton University Press, 2016)
2017
Il contributo è una segnalazione bibliografica del volume dal titolo "Histories of Ornament: From Global to Local", edito nel 2016 dalla Princeton University Press e curato da Gülru Necipoğlu e Alina Alexandra Payne. Il libro racconta l’ornamento e il suo “mondo” individuandone i tanti volti attraverso i media artistici e ripercorrendone le molte storie, teorie e storiografie generate e sviluppate a livello locale e globale, dal Medioevo all’età contemporanea.
Fractional Viscoelasticity Under Combined Stress and Temperature Variations
2020
Nowadays polymeric materials or composites with polymeric matrices are widely used in a very wide range of applications such as aerospace, automotive, biomedical and also civil engineering. From a mechanical point of view, polymers are characterized by high viscoelastic properties and high sensitiveness of mechanical parameters from temperature. Analytical predictions in real-life conditions of mechanical behaviour of such a kind of materials is not trivial for the intrinsic hereditariness that imply the knowledge of all the history of the material at hand in order to predict the response to applied external loads. If temperature variations are also present in the materials, a reliable eval…
The Marine Sponge-Derived Inorganic Polymers, Biosilica and Polyphosphate, as Morphogenetically Active Matrices/Scaffolds for the Differentiation of …
2014
The two marine inorganic polymers, biosilica (BS), enzymatically synthesized from ortho-silicate, and polyphosphate (polyP), a likewise enzymatically synthesized polymer consisting of 10 to >100 phosphate residues linked by high-energy phosphoanhydride bonds, have previously been shown to display a morphogenetic effect on osteoblasts. In the present study, the effect of these polymers on the differential differentiation of human multipotent stromal cells (hMSC), mesenchymal stem cells, that had been encapsulated into beads of the biocompatible plant polymer alginate, was studied. The differentiation of the hMSCs in the alginate beads was directed either to the osteogenic cell lineage by …
Nonlinear Nonhomogeneous Elliptic Problems
2019
We consider nonlinear elliptic equations driven by a nonhomogeneous differential operator plus an indefinite potential. The boundary condition is either Dirichlet or Robin (including as a special case the Neumann problem). First we present the corresponding regularity theory (up to the boundary). Then we develop the nonlinear maximum principle and present some important nonlinear strong comparison principles. Subsequently we see how these results together with variational methods, truncation and perturbation techniques, and Morse theory (critical groups) can be used to analyze different classes of elliptic equations. Special attention is given to (p, 2)-equations (these are equations driven…
A multi objective genetic algorithm for the facility layout problem based upon slicing structure encoding
2012
This paper proposes a new multi objective genetic algorithm (MOGA) for solving unequal area facility layout problems (UA-FLPs). The genetic algorithm suggested is based upon the slicing structure where the relative locations of the facilities on the floor are represented by a location matrix encoded in two chromosomes. A block layout is constructed by partitioning the floor into a set of rectangular blocks using guillotine cuts satisfying the areas requirements of the departments. The procedure takes into account four objective functions (material handling costs, aspect ratio, closeness and distance requests) by means of a Pareto based evolutionary approach. The main advantage of the propos…
The Bourdieu Affair
2018
In this chapter, the author analyzes Pierre Bourdieu as a representative of the French intellectual tradition. In the name of morality, he rose to defend those who suffered injustice. In the Bourdieu affair, the sufferers of injustice were the unemployed and part-time workers. The opponents were the neoliberal market ideologists, historical successors to the form of capitalism Emile Zola had already dissected in his book on the stock exchange, Avarice (greed), as well as audio-visual communication tools, which Bourdieu accused of mediocrity. As in the cases of Zola and Jean-Paul Sartre, Bourdieu’s message is universal, even though the problems selected, the form of their presentation and th…
Quasivarieties of Algebras
2001
This chapter plays a twofold role in the book. Firstly, the chapter surveys basic facts about quasivarieties of algebras. These facts are widely utilised in the subsequent chapters devoted to algebraizable logics. Secondly, the chapter shows how the methods initially elaborated for protoalgebraic sentential logics in the first part can be also applied in the area of equational logic. Most of the results presented in this chapter are proved by way of adapting the purely consequential methods of sentential logic to the needs of the (quasi) equational systems associated with quasivarieties of algebras.
Variaciones del drama historial en Lope de Vega
2013
Starting from the presentation of the principles underlying the current research and that link it to previous studies —principles which deal with the concept and features of drama historial (historic drama) in Lope de Vega—, the essay focuses on the distinction of two fundamental modes of drama historial: the commemoration of famous historical events on the one hand, and moral conflict analysis, almost always of private nature and exploding in specific historical circumstances, on the other hand. These two major strategies of significance, the one being characteristic of a collective memory, associated with the identity of the nascent nation, and the other one exploring private identity, th…