45,872 research outputs found

    Dynamic Cues for Network Music Interactions

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    This paper provides an overview of a cueing system, the Master Cue Generator (MCG) used to trigger performers (humans or computers) over an IP-based network. The performers are scattered in several locations and receive cues to help them interact musically over the net- work. The paper proposes a classification of cues that dynamically evolve and reshape as the performance takes place. This begets the explo- ration of various issues such as how to represent and port a hierarchy of control over a net- worked music performance (NMP) and also takes into account parameters inherent to a net- work such as latency and distance. This ap- proach is based on several years of practice-led research in the field of NMP, a discipline that is gaining grounds within the music technology community both as a practice and through the development of tools and strategies for interact- ing over disparate locations

    Hot pressing of nanocrystalline TiO2 (anatase) ceramics with controlled microstructure

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    The preparation conditions of nanocrystalline phase-pure TiO2 anatase ceramics by hot pressing are described. Density, surface area, pore size distribution and grain size are determined by various techniques, including gas adsorption, mercury porosimetry, transmission electron microscopy (TEM) and X-ray diffraction (XRD). The evolution of the structural parameters is followed as function of temperature and pressure programme. It is shown that the porosity, grain and pore size of the ceramics can be controlled by a suitable choice of experimental conditions. Ceramics with densities higher than 90% of the theoretical limit with a mean grain size of 30 nm can be obtained at temperatures as low as 490 ◦C under 0.45 GPa for 2 h. The experimental results are discussed in view of the sintering theory

    A ZX-Calculus with Triangles for Toffoli-Hadamard, Clifford+T, and Beyond

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    We consider a ZX-calculus augmented with triangle nodes which is well-suited to reason on the so-called Toffoli-Hadamard fragment of quantum mechanics. We precisely show the form of the matrices it represents, and we provide an axiomatisation which makes the language complete for the Toffoli-Hadamard quantum mechanics. We extend the language with arbitrary angles and show that any true equation involving linear diagrams which constant angles are multiple of Pi are derivable. We show that a single axiom is then necessary and sufficient to make the language equivalent to the ZX-calculus which is known to be complete for Clifford+T quantum mechanics. As a by-product, it leads to a new and simple complete axiomatisation for Clifford+T quantum mechanics.Comment: In Proceedings QPL 2018, arXiv:1901.09476. Contains Appendi
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