985 resultados para Anàlisi intervalar modal


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En les següents pàgines s’intenta mostrar la gran quantitat i qualitat de música hongaresa per viola del segle XX disponible, el perquè de tant material en comparació amb altres èpoques i el grau de coneixement que es té d’aquest repertori. El treball està realitzat a través de la recopilació d’informació de tots els aspectes en relació, i d’enquestes a estudiants de viola que permeten conèixer altres aspectes com el contacte d’aquests amb la música hongaresa. Amb la seva lectura es pot descobrir una infinitat d’obres molt desconegudes, de noms importants per la història de l’instrument i del poc coneixement que es té d’alguns d’aquests aspectes.

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This project addresses methodological and technological challenges in the development of multi-modal data acquisition and analysis methods for the representation of instrumental playing technique in music performance through auditory-motor patterning models. The case study is violin playing: a multi-modal database of violin performances has been constructed by recording different musicians while playing short exercises on different violins. The exercise set and recording protocol have been designed to sample the space defined by dynamics (from piano to forte) and tone (from sul tasto to sul ponticello), for each bow stroke type being played on each of the four strings (three different pitches per string) at two different tempi. The data, containing audio, video, and motion capture streams, has been processed and segmented to facilitate upcoming analyses. From the acquired motion data, the positions of the instrument string ends and the bow hair ribbon ends are tracked and processed to obtain a number of bowing descriptors suited for a detailed description and analysis of the bow motion patterns taking place during performance. Likewise, a number of sound perceptual attributes are computed from the audio streams. Besides the methodology and the implementation of a number of data acquisition tools, this project introduces preliminary results from analyzing bowing technique on a multi-modal violin performance database that is unique in its class. A further contribution of this project is the data itself, which will be made available to the scientific community through the repovizz platform.

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La seqüència gregoriana Dies Irae s'ha convertit en un material musical àmpliament utilitzat per compositors per dotar d'un significat concret a la seves obres. Però a mesura que han passat el segles es pot determinar que l'objectiu que han tingut els compositors en voler incloure una referència a aquesta seqüència ha variat notablement. En aquest treball tracto de demostrar quins canvis hi ha hagut segons l'època i el compositor, ja sigui des del punt de vista conceptual com des del punt de vista tècnic tot analitzant obres de moments i estils diferents, parant atenció a sis obres concretes que o tenen importància a causa de la seva influència o la seva singularitat. Alhora, exposo com tot això m'ha influït per compondre obres que estiguin relacionades amb el Dies Irae i amb la música al voltant de la mort.

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La proposición "Dios elige lo mejor" constituye una verdad incuestionable para Leibniz, y una premisa fundamental en su explicación de la existencia del mundo, tanto como en su teodicea. Leibniz sintió la necesidad de clarificar su carácter modal, dada la importancia de tal cuestión en relación con la libertad divina. Sin embargo, en el abordaje de este problema, se vio conducido a infringir los criterios de su propia teoría modal, con el fin de justificar la contingencia de tal proposición. Este trabajo intenta mostrar que la posición principal sostenida por Leibniz, en torno a la modalidad de esta proposición, constituye una suerte de excepción en el marco de su doctrina modal, y que esta ambigüedad refleja las razones profundas de las oscilaciones constatables en sus escritos sobre esta temática.

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Recently, due to the increasing total construction and transportation cost and difficulties associated with handling massive structural components or assemblies, there has been increasing financial pressure to reduce structural weight. Furthermore, advances in material technology coupled with continuing advances in design tools and techniques have encouraged engineers to vary and combine materials, offering new opportunities to reduce the weight of mechanical structures. These new lower mass systems, however, are more susceptible to inherent imbalances, a weakness that can result in higher shock and harmonic resonances which leads to poor structural dynamic performances. The objective of this thesis is the modeling of layered sheet steel elements, to accurately predict dynamic performance. During the development of the layered sheet steel model, the numerical modeling approach, the Finite Element Analysis and the Experimental Modal Analysis are applied in building a modal model of the layered sheet steel elements. Furthermore, in view of getting a better understanding of the dynamic behavior of layered sheet steel, several binding methods have been studied to understand and demonstrate how a binding method affects the dynamic behavior of layered sheet steel elements when compared to single homogeneous steel plate. Based on the developed layered sheet steel model, the dynamic behavior of a lightweight wheel structure to be used as the structure for the stator of an outer rotor Direct-Drive Permanent Magnet Synchronous Generator designed for high-power wind turbines is studied.

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Population-based metaheuristics, such as particle swarm optimization (PSO), have been employed to solve many real-world optimization problems. Although it is of- ten sufficient to find a single solution to these problems, there does exist those cases where identifying multiple, diverse solutions can be beneficial or even required. Some of these problems are further complicated by a change in their objective function over time. This type of optimization is referred to as dynamic, multi-modal optimization. Algorithms which exploit multiple optima in a search space are identified as niching algorithms. Although numerous dynamic, niching algorithms have been developed, their performance is often measured solely on their ability to find a single, global optimum. Furthermore, the comparisons often use synthetic benchmarks whose landscape characteristics are generally limited and unknown. This thesis provides a landscape analysis of the dynamic benchmark functions commonly developed for multi-modal optimization. The benchmark analysis results reveal that the mechanisms responsible for dynamism in the current dynamic bench- marks do not significantly affect landscape features, thus suggesting a lack of representation for problems whose landscape features vary over time. This analysis is used in a comparison of current niching algorithms to identify the effects that specific landscape features have on niching performance. Two performance metrics are proposed to measure both the scalability and accuracy of the niching algorithms. The algorithm comparison results demonstrate the algorithms best suited for a variety of dynamic environments. This comparison also examines each of the algorithms in terms of their niching behaviours and analyzing the range and trade-off between scalability and accuracy when tuning the algorithms respective parameters. These results contribute to the understanding of current niching techniques as well as the problem features that ultimately dictate their success.

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Affiche de projet terminal, baccalauréat en Urbanisme. Institut d'urbanisme, Université de Montréal.

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Màster Oficial en Gestió del Patrimoni Cultural

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Màster Oficial en Gestió del Patrimoni Cultural

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L’estudi de l’Anàlisi del Cicle de Vida (ACV) ha estat realitzat a l’empresa CRODA Ibèrica S.A - Mevisa Site, en concret a la línia productiva on s’hi fabrica el monoestearat de glicerina utilitzant una eina informàtica comercial denominada SIMAPRO que analitza i compara els aspectes mediambientals d’un producte d’una manera sistemàtica i consistent seguint les recomanacions de les normes ISO 14040