Search results for " ANN"

A bounded version of bosonic creation and annihilation operators and their related quasi-coherent states

2007

Coherent states are usually defined as eigenstates of an unbounded operator, the so-called annihilation operator. We propose here possible constructions of {\em quasi-coherent states}, which turn out to be {\em quasi} eigenstate of a \underline{bounded} operator related to an annihilation-like operator. We use this bounded operator to construct a sort of modified harmonic oscillator and we analyze the dynamics of this oscillator from an algebraic point of view.

CLAUSOLE VESSATORIE, NULLITÀ DI PROTEZIONE E POTERI DEL GIUDICE: ALCUNI PUNTI FERMI DOPO LE SENTENZE JŐRÖS E ASBEEK BRUSSE

2013

The paper takes the recent cases Erika Jőrös (Case C- 397/11,) and Asbeek Brusse,(case C-488-11), both dated 30 may 2013, as a starting point for a more general analysis of the ECJ’s approach to the legal consequences to be drawn by a national Court from finding that a contractual term is unfair. According to the Author, the approach adopted by the Court is the same that it has already been expressed in Mostaza Claro case. By revisiting the earlier Océno, the Court clarified that national courts have not only the right but even the duty to assess the fairness or unfairness of standards terms of their own motion. Well, beginning from Mostaza Claro judgement and until the last ones, the ECJ h…

“UTILE E NECESSARIO PAREVA E PARE IL ROMANZO”: LA RICERCA DI UNA NUOVA PROSA NELLA RUSSIA DEGLI ANNI VENTI

2007

An introduction to a collection of articles on the Soviet novel of the Twenties, outlining the situation of prose writing at the time, caught between the heritage of the avant-garde and the requirements of the authorities.

Different Methods of Artificial Intelligence Used for Optimization the Turning Process

2015

In this paper, we realize a comparative study between some heuristics methods applied in turning operation in order to find optimal cutting parameters. We consider five different constraints aimed to achieve minimum total cost of machining. We have chosen the Simulated Annealing (SA) – a local search method, and Weighted-Sum Genetic Algorithm (WSGA) – a non-Pareto approach of a multi-objective optimization algorithm, based on a weighted aggregation of objectives. The aggregation may be with fixed weights or with random (variable) weights. The simulations showed that, even if it produces better results than the SA, WSGA with fixed weights, does not lead to optimum results, highlighting in th…

Vehicle routing problems with drones equipped with multi-package payload compartments

2022

The vehicle routing problem with drones (VRP-D) consists of designing combined truck-drone routes and schedules to serve a set of customers with specific requests and time constraints. In this paper, VRP-D is extended to include a fleet of drones equipped with multi-package payload compartments to serve more customers on a single trip. Moreover, a drone can return to a truck, different from the one from which it started, to swap its depleted battery and/or to pick up more packages. This problem, denoted as VRP-D equipped with multi-package payload compartments (VRP-D-MC), aims to maximize total profit. In this work, an adaptive multi-start simulated annealing (AMS-SA) metaheuristic algorith…

Histories and geographies of the Palermo school of design

2022

Vito Noto non ha mai percorso la “via siciliana del design”, ma attraversando l’intera penisola è approdato in un altro paese, che seppure vicino all’Italia possiede una cultura differente e una storica e riconosciuta scuola del design. La sua storia ha così assunto una forma che forse avrebbe potuto essere completamente diversa se mai avesse pensato di rimanere nella sua isola, dove, cresceva e si consolidava la scuola palermitana del design. La sua storia avrebbe di sicuro incrociato quella di Anna Maria Fundarò che della scuola fu una caparbia e visionaria ideatrice e sostenitrice, assumendo un ruolo tanto riconosciuto a livello nazionale e internazionale quanto contrastato e isolato a l…

Structural-relaxation phenomena in As–S glasses as probed by combined PAL/DBAR technique

2015

Abstract Experimental techniques exploring phenomena of positron–electron interaction, namely the positron annihilation lifetime spectroscopy and Doppler broadening of annihilation radiation, are shown to be very informative tools to study radiation- and thermally-induced phenomena in chalcogenide glasses of binary As–S system. Time-dependent processes of free-volume voids agglomeration (expansion), fragmentation (refining) and disappearing (contraction) are identified as main stages of physical aging in S-rich glasses, while a competitive channel of coordination topological defects formation associated with void charging becomes significant in a vicinity of near-stoichiometric glass compos…

Äänekosken Naiskuoro 1941-2005

2005

Anomalous quartic gauge boson couplings at hadron colliders

2000

We analyze the potential of the Fermilab Tevatron and CERN Large Hadron Collider (LHC) to study anomalous quartic vector--boson interactions (photon photon Z Z) and (photon photon W+ W-). Working in the framework of SU(2)_L X U(1)_Y chiral Lagrangians, we study the production of photons pairs accompanied by (e+e-), (e nu), and jet pairs to impose bounds on these new couplings, taking into account the unitarity constraints. We compare our findings with the indirect limits coming from precision electroweak measurements as well as with presently available direct searches at LEPII. We show that the Tevatron Run II can provide limits on these quartic limits which are of the same order of magnitu…

Complete Genome Sequence of the Enterobacter cancerogenus Bacteriophage Enc34

2012

ABSTRACT Enterobacter cancerogenus is widely distributed in nature and is generally recovered from environmental or vegetal sources. In some cases, it has also been associated with human infections. In this study, the complete genomic sequence of virulent E. cancerogenus bacteriophage Enc34 was determined. The Enc34 genome is 60,364 bp in length and contains 80 open reading frames. To our knowledge, this is the first report of a bacteriophage infecting E. cancerogenus .