206 research outputs found
El manuscrito 1bis del Monasterio de Santa Maria de Vallbona
La aportación de la profesora Gómez se desarrolla en tomo al manuscrito I bis del monasterio de Santa Maria de Vallbona, sobre el cual elabora diversas hipótesis referentes a su contenido y a las relaciones de este monasterio con los de Santes Creus y Las Huelgas
La música en tiempos de Alejandro VI
Català: Membres, funcions i repertori de la capella papal d'Alexandre VI, caracteritzada, entre d'altres trets, per la introducció de l'ús d'instruments i per un estil d'interpretació definit pels coetanis com a "more hispanico", que es mantindria durant el pontificat de Juli II. Quant a la música profana, la presència de Juan del Encina a la cort del segon papa Borja fa pensar en la pervivència de la tradició medieval.
English: Members, roles and musical repertory of the chapel of Pope Alexander VI, characterized, among other features, by the introduction of instruments and a performing style described by contemporaries as "more hispanico", which was pursued during the pontificate of Julius II. As far as secular music is concerned, the presence of Juan del Encina in the court of the second Pope Borgia suggests the survival of the medieval tradition.
Italiano: I membri, le funzioni e il repertorio della cappella papale di Alessandro VI, caratterizzata, tra le altre cose, dall'introduzione dell'uso degli strumenti e da uno stile interpretativo definito dai coevi come "more hispanico" che sarà mantenuto durante il pontificato di Giulio II. Rispetto alla musica profana, la presenza di Juan del Encina nella corte del secondo papa Borgia rende possibile ipotizzare la sopravvivenza della tradizione medievale
Ressenyes
Obra ressenyada: Margaret BENT, Magister Jacobus de Ispania, Author of the «Speculum musicae». Farnham: Ashgate, 2015
End-of-life disposal of libration point orbit spacecraft
In this work we investigate end-of-life trajectories for
spacecraft in orbit about the Sun-Earth
L
1
and
L
2
libration points. A plan for decommission is often re-
quired during the mission design process. We study
the spacecraft's natural dynamics in both a high-
delity model and the circular restricted three-body
problem. In particular, we consider the role of the
unstable manifold and forbidden regions in determin-
ing disposal outcomes. A simple maneuver scheme
to prevent returns to the Earth vicinity is also an-
alyzed. We include discussion on potential collision
orbit schemes.Postprint (published version
A distributed attitude control law for formation flying based on the Cucker-smale model
In this paper we consider the attitude synchronization problem for a swarm of spacecrafts flying in formation.
Starting from previous works on consensus dynamics, we construct a distributed attitude control law and derive analytically
sufficient conditions for the formation to converge asymptotically towards a synchronized, non–accelerating state (possibly defined a priori). Moreover, motivated by the results obtained on a particular consensus model, first introduced by F. Cucker and S. Smale to modellize the translational dynamics of flocks, we numerically explore
the dependence of the convergence process on the dimension of the formation and the relative initial conditions of the spacecrafts. Finally, we generalize the class of weights defined by the previous authors in order to dampen the aforementioned effects, thus making our control law suitable for very large formations.Postprint (published version
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