Search results for "Fibre ottiche."

showing 3 items of 3 documents

Integrability of an inhomogeneous nonlinear Schrödinger equation in Bose–Einstein condensates and fiber optics

2010

In this paper, we investigate the integrability of an inhomogeneous nonlinear Schrödinger equation, which has several applications in many branches of physics, as in Bose-Einstein condensates and fiber optics. The main issue deals with Painlevé property (PP) and Liouville integrability for a nonlinear Schrödinger-type equation. Solutions of the integrable equation are obtained by means of the Darboux transformation. Finally, some applications on fiber optics and Bose-Einstein condensates are proposed (including Bose-Einstein condensates in three-dimensional in cylindrical symmetry).

Condensed Matter::Quantum GasesPhysicsPartial differential equationCondensates di Bose–EinsteinIntegrable systemEquazione di Schroedinger nonlinearCondensed Matter::OtherBranches of physicsStatistical and Nonlinear PhysicsIntegrabilityWave equationAnalisi di PainlevéFibre ottiche.law.inventionSchrödinger equationsymbols.namesakelawsymbolsMatter waveSettore MAT/07 - Fisica MatematicaNonlinear Schrödinger equationMathematical PhysicsBose–Einstein condensateMathematical physicsJournal of Mathematical Physics
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GIUNZIONI BULLONATE FRA COMPOSITO E ALLUMINIO: STUDIO DEL GIOCO MEDIANTE FIBRE OTTICHE INGLOBATE NELLO SPESSORE

2010

Le giunzioni bullonate di elementi in composito sono state da sempre utilizzate per applicazioni impegnative. Sono stati annegati estensimetri a fibra ottica nello spessore di un pannello in composito in prossimità della superficie di contatto piastra-bullone in un giunto ibrido composito-alluminio. Sono state eseguite diverse prove di trazione su provini single-lap joint con differenti valori del gioco tra bullone e foro. Le prove consentono di determinare una relazione fra il gioco tra bullone e foro e i valori delle deformazioni misurate dagli estensimetri a fibra ottica. Risulta che ad un incremento dei valori del gioco corrisponde un incremento dei valori di deformazione in prossimità …

Giunzioni in composito fibre ottiche analisi FEM ANSYS LS-DYNA.
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Irradiation Effects in Optical Fibers

2010

Intrinsic and extrinsic optical fiber-based sensors are promising devices to be used in very different and complex environments, by their very nature: capabilities to work under electromagnetic fields; possibility to carry multiplexed signals (time, wavelength multiplexing); small size and low mass; ability to handle multi-parameter measurements in distributed configuration; possibility to monitor sites far away from the controller. In the case of the optical fibers, the possibility to be incorporated into various types of sensors and actuators, free of additional hazards (i.e. fire, explosion), made them promising candidates to operate in adverse conditions as those required by space appli…

inorganic chemicalsOptical fiberMaterials sciencegenetic structuresbusiness.industrySettore FIS/01 - Fisica SperimentaleOptical communicationRadiationMultiplexerlaw.inventionWavelengthTransmission (telecommunications)lawFibre ottiche silice irraggiamenti difetti di puntoFiber laserOptoelectronicsLuminescencebusiness
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