Exploració per autor "Cubarsí Morera, Rafael"
Ara es mostren els items 29-48 de 53
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On the divisions of the octave in generalized Pythagorean scales and their bidimensional representation
Cubarsí Morera, Rafael (Taylor & Francis Group, 2023-04-30)
Article
Accés restringit per política de l'editorialFor well-formed generalized Pythagorean scales, it is explained how to fill in a bidimensional table, referred to as a scale keyboard, to represent the scale tones, arranged bidimensionally as iterates and cardinals, ... -
On the maximum entropy and the problem of moments: an application to stellar kinematics
Cubarsí Morera, Rafael (2008-12-01)
Report de recerca
Accés obertThe maximum entropy approach is used to solve the classical moment problem of stellar kinematics. If an extended set of moments is available, the current method provides a linear estimation algorithm, which is given ... -
Optimal seggregation of a two-component sample based on maximim population entropy: an application to astronomy
Alcobé López, Santiago; Catala-Poch, M.A.; Cubarsí Morera, Rafael (Birkhäuser Verlag, 2000)
Text en actes de congrés
Accés obertDetermination of stellar population parameters from statistics of global samples is extremely sensitive to the noise introduced by few non-typical stars. In order to obtain a nearly-pure two-population mixture a subsample ... -
Orbital eccentricities as indicators of stellar populations. II. Vertical velocity distribution from the Gaia DR2 catalogue
Cubarsí Morera, Rafael; Stojanovic, Milan; Ninkovic, Slobodan (EDP Sciences, 2021-08)
Article
Accés obertContext. In previous work, we showed how the planar and vertical eccentricities of disc stars, e and e' , could be used as indicators of the stars’ kinematic populations. For a local stellar sample drawn from the Gaia DR2 ... -
Orbital eccentricities as indicators of stellar populations: a kinematical analysis of the local disc from GAIA DR2 catalogue
Cubarsí Morera, Rafael; Stojanovic, Milan; Ninkovic, Slobodan (EDP Sciences, 2021-02-09)
Article
Accés obertAims. Based on a local sample from Gaia DR2 catalogue composed of 74 339 stars, we are able to derive more accurate kinematic statistics defining the local stellar populations and classify the stars in terms of their planar ... -
Partition entropy and chi-squared error: the improved MEMPHIS algorithm - Part I
Cubarsí Morera, Rafael; Alcobé López, Santiago (2009-07)
Report de recerca
Accés obertThe entropy of the population partition is studied as a function of the sampling parameter, so that within a particular interval of its graph, the plateau region, it is possible to get a stable estimation of the mixture ... -
Principi de conservació del desenvolupament sostenible i el software lliure
Cubarsí Morera, Rafael; Escudero Royo, Miguel (Centre per a la Sostenibilitat, 2009-07-09)
Text en actes de congrés
Accés obertAixí com l'energia total d'un sistema mecànic és la suma de l'energia cinètica i la potencial, podem dir que el desenvolupament en sostenibilitat és la suma 'ús de recursos' més ‘potencialitat d’ús’, en la justa mesura. ... -
Problemes d'espais vectorials
Cubarsí Morera, Rafael (2015-10)
Report de recerca
Accés obertProblemes test d'espais vectorials -
Problemes de matrius
Cubarsí Morera, Rafael (2015-11)
Report de recerca
Accés obertProblemes test de matrius -
Programas del algoritmo de clasificacion de poblaciones normales trivariantes a partir de la entropia de mezcla
Cubarsí Morera, Rafael; Alcobé López, Santiago (2001-01)
Report de recerca
Accés obertThe complete FORTRAN codified programs of the segregation algorithm described in Alcobé (2001) are described. The classification algorithm is applied to study the trivariate velocity distribution of stars from the star ... -
Proteine Bolognese
Cubarsí Morera, Rafael; Vázquez, Esther; Villaverde, Antonio (2011-06)
Article
Accés obertSe modeliza la penetraci on de una versi on modi cada de la prote na verde uorescente llamada GFP en el citoplasma y el n ucleo de una c elula de mam fero. El modelo matem atico proporciona una primera aproximaci on ... -
Proteine Bolognese
Cubarsí Morera, Rafael; Vázquez, Esther; Villaverde, Antonio (2010-06)
Comunicació de congrés
Accés obertSe modeliza la penetración de una versión modificada de la proteína verde fluorescente llamada GFP en el citoplasma y el núcleo de una célula de mamífero. El modelo matemático proporciona una primera aproximación al ... -
Qüestions d'àlgebra lineal amb solucions
Cubarsí Morera, Rafael (2015-12)
Report de recerca
Accés obertQüestions tipus test de l'assignatura d'Àlgebra Lineal de l'ETSETB (2015) amb solucions -
Small-scale structure of the disc velocity distribution. A maximum entropy statistical approach - Part II
Cubarsí Morera, Rafael (2009-12)
Report de recerca
Accés obertAmong metallicity, colour, and other star properties, the eccentricity of the star’s orbit behaves as a very good sampling parameter to find a more detailed structure for the disc velocity distribution, allowing distinctions ... -
Structure of the velocity distribution of the Galactic disc: a maximum entropy statistical approach - Part I
Cubarsí Morera, Rafael (2009-09)
Report de recerca
Accés obertThe maximum entropy approach is proposed to describe the local structures of the veloc- ity distribution, which are collected through its sample moments. The method is used with several samples from the HIPPARCOS and ... -
Study of the self organizing map of one local stellar sample
Hernández Pajares, Manuel; Cubarsí Morera, Rafael; Monte Moreno, Enrique (F. MURTAGH AND A. HECK, 1992)
Text en actes de congrés
Accés obert -
Switching cell penetrating and CXCR4-binding activities of nanoscale-organized arginine-rich peptides
Teixeira De Pinho Favaro, Marianna; Serna, Naroa; Sanchez Garcia, Laura; Cubarsí Morera, Rafael; Roldan, Monica; Sanchez Chardi, Alejandro; Unzueta, Ugutz; Mangues, Ramón; Ferrer Miralles, Neus; Rodrigues Azzoni, Adriano; Vazquez Gómez, Esther; Villaverde, Antonio (2018-08-01)
Article
Accés obertArginine-rich protein motifs have been described as potent cell-penetrating peptides (CPPs) but also as rather specific ligands of the cell surface chemokine receptor CXCR4, involved in the infection by the human ... -
Teorema astronómico de resistencia y unicidad
Cubarsí Morera, Rafael; Hernández Pajares, Manuel (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1993)
Article
Accés obert -
The complete form of moment equations of stellar dynamics
Cubarsí Morera, Rafael (2007-03-30)
Report de recerca
Accés obertThe exact mathematical expression for an arbitrary nth-order stellar hydrodynamic equation is explicitly obtained depending on the central moments of the velocity distribution. In such a form the equations are physically ... -
The epicycle model
Cubarsí Morera, Rafael (2013-06)
Article
Accés obertLas soluciones de las ecuaciones del movimiento para una part cula de masa puntual bajo un campo de fuerzas conservativo estan generalmente ligadas a un conjunto b asico de integrales del movimiento, que dependen del ...