cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Autonomous Generation of Soundscapes using Unstructured Sound Databases
Creators: name: Finney, Nathan
Publisher: name: Zenodo
Year: 2009

description: This research focuses on the generation of soundscapes using unstructured sound databases for the sonification of virtual environments. A generalized methodology for design based on soundscape categorization, perceptual discrimination of sources and media design principles is proposed, with the underlying principle of the composition of a source and a textural layer within any soundscape. A generative model is proposed based on these principles covering sound object retrieval, segmentation, parameterization and resynthesis. The model incorporates wavelet resynthesis, sample playback and a technique for concatenative synthesis using an MFCC-based BIC segmentation method. Principles for optimal grain size selection with respect to source layer content are discussed, and the concatenation of segments is based on a relative MFCC Euclidean distance calculation. An implementation of the model using a photorealistic panoramic image in an urban context is described, using a sound database of community-provided recordings. The implementation utilizes sample playback and concatenative synthesis in order to maximally preserve the contextual attributes of the photorealistic environment, while wavelet resynthesis is discussed as a potential avenue for further development. The methods of classification, segmentation and synthesis adhering to the particular application are discussed, along with a validation of the model using a subjective evaluation. The results of the study demonstrate the applicability of the design principles to an autonomous generation engine, while highlighting some of the challenges of implementation for autonomous functionality related to retrieval, segmentation and synthesis parameterization.
Sparse Representations of Clifford and Tensor algebras in Maxima
Creators: name: Prodanov, Dimiter
name: Toth, Viktor T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences

description: Clifford algebras have broad applications in science and engineering. The use of Clifford algebras can be further promoted in these fields by availability of computational tools that automate tedious routine calculations. We offer an extensive demonstration of the applications of Clifford algebras in electromagnetism using the geometric algebra G3 = Cl(3,0) as a computational model in the Maxima computer algebra system. We compare the geometric algebra-based approach with conventional symbolic tensor calculations supported by Maxima, based on the itensor package. The Clifford algebra functionality of Maxima is distributed as two new packages called clifford - for basic simplification of Clifford products, outer products, scalar products and inverses; and cliffordan - for applications of geometric calculus.
description: 23 pages, 2 figures; accepted for publication in Advances in Applied Clifford Algebras, special issue AGACSE 2015
Gravitational wave astrophysics, data analysis and multimessenger astronomy
Creators: name: Lee, Hyung Mok
name: Bigot, Eric-Olivier Le
name: Du, ZhiHui
name: Lin, ZhangXi
name: Guo, XiangYu
name: Wen, LinQing
name: Phukon, Khun Sang
name: Pandey, Vihan
name: Bose, Sukanta
name: Fan, Xi-Long
name: Hendry, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This paper reviews gravitational wave sources and their detection. One of the most exciting potential sources of gravitational waves are coalescing binary black hole systems. They can occur on all mass scales and be formed in numerous ways, many of which are not understood. They are generally invisible in electromagnetic waves, and they provide opportunities for deep investigation of Einstein's general theory of relativity. Sect. 1 of this paper considers ways that binary black holes can be created in the universe, and includes the prediction that binary black hole coalescence events are likely to be the first gravitational wave sources to be detected. The next parts of this paper address the detection of chirp waveforms from coalescence events in noisy data. Such analysis is computationally intensive. Sect. 2 reviews a new and powerful method of signal detection based on the GPU-implemented summed parallel infinite impulse response filters. Such filters are intrinsically real time alorithms, that can be used to rapidly detect and localise signals. Sect. 3 of the paper reviews the use of GPU processors for rapid searching for gravitational wave bursts that can arise from black hole births and coalescences. In sect. 4 the use of GPU processors to enable fast efficient statistical significance testing of gravitational wave event candidates is reviewed. Sect. 5 of this paper addresses the method of multimessenger astronomy where the discovery of electromagnetic counterparts of gravitational wave events can be used to identify sources, understand their nature and obtain much greater science outcomes from each identified event.
Imaging Nanophotonic Modes of Microresonators using a Focused Ion Beam
Creators: name: Twedt, Kevin A.
name: Zou, Jie
name: Davanco, Marcelo
name: Srinivasan, Kartik
name: McClelland, Jabez J.
name: Aksyuk, Vladimir A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Optical microresonators have proven powerful in a wide range of applications, including cavity quantum electrodynamics, biosensing, microfludics, and cavity optomechanics. Their performance depends critically on the exact distribution of optical energy, confined and shaped by the nanoscale device geometry. Near-field optical probes can image this distribution, but the physical probe necessarily perturbs the near field, which is particularly problematic for sensitive high quality factor resonances. We present a new approach to mapping nanophotonic modes that uses a controllably small and local optomechanical perturbation introduced by a focused lithium ion beam. An ion beam (radius about 50 nm) induces a picometer-scale dynamic deformation of the resonator surface, which we detect through a shift in the optical resonance wavelength. We map five modes of a silicon microdisk resonator (Q > 20,000) with both high spatial and spectral resolution. Our technique also enables in-situ observation of ion implantation damage and relaxation dynamics in a silicon lattice.
description: published online in Nature Photonics
Singing Voice Nasality Detection in Polyphonic Audio
Creators: name: Ramesh, Anandhi
Publisher: name: Zenodo
Year: 2009

description: This thesis proposes a method for characterising the singing voice in polyphonic commercial recordings. The specific feature that we characterise is the nasality of the singer's voice. The main contribution of the thesis is in defining a strong set of nasality descriptors that can be applied within the constraints of polyphony. The segment of the recording containing the voice as the predominant source is manually selected. The source is a stereo recording, where the voice is a mono track assumed to be panned to the centre. This two channel segment is converted to mono using direct averaging of the left and right channels. However, the possibility of accompaniment reduction or elimination by extracting the perceptual center of the mix, which in popular recordings is usually the voice, is also explored. Following this, the harmonic frames in the segment are identified for descriptor extraction, since the nasal quality is normally experienced in the voiced vowels and the voice is a strongly harmonic source. The choice of descriptors derives from the prior research into nasality in speech, as well as some spectral features of the nasal consonants. Once the descriptors are available for the entire segment, they are input to a one-class classifier for obtaining a model of the nasal voice. The evaluation of the model is performed for different sets of descriptors as well as for the effectiveness of the center-track extraction. The results are also compared against a standard set of descriptors used for the voice timbre characterization, the MFCCs and some spectral descriptors. The performance is comparable, and the chosen descriptor set outperforms the generic feature vector in some cases. Also the choice of carefully selected descriptors achieves a reduction in the length of the feature vector.
The Virtual Diphoton Excess
Creators: name: Stolarski, Daniel
name: Vega-Morales, Roberto
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Interpreting the excesses around 750 GeV in the diphoton spectra to be the signal of a new heavy scalar decaying to photons, we point out the possibility of looking for correlated signals with virtual photons. In particular, we emphasize that the effective operator that generates the diphoton decay will also generate decays to two leptons and a photon, as well as to four leptons, independently of the new resonance couplings to $Zγ$ and $ZZ$. Depending on the relative sizes of these effective couplings, we show that the virtual diphoton component can make up a sizable, and sometimes dominant, contribution to the total $2\ell γ$ and $4\ell$ partial widths. We also discuss modifications to current experimental cuts in order to maximize the sensitivity to these virtual photon effects. Finally, we briefly comment on prospects for channels involving other Standard Model fermions as well as more exotic decay possibilities of the putative resonance.
description: 8 pages, 6 figures; v2 figure 2 and references added
Tonal stability modeling from audio chroma features
Creators: name: Martorell, Agustín
Publisher: name: Zenodo
Year: 2009

description: This work explores the possibility of modeling tonal stability from music signals, in an attempt to approximate in a different way an ubiquitous, yet controversial, topic in music research: that of the perception of tension and relaxation over time.
 We rely upon some of the most agreed hypotheses about the hierarchical properties of the tonal system, to define a scenario in which such features could be modeled and exploited from audio signals. From the methodological point of view, we reinterpret
 current paradigms from music theory and cognitive psychology, in order to define a coherent and manageable concept of tonal stability, around the idea of perceptual degree of closeness between tonal events and their tonal contexts.
 Our proposed algorithm extracts chroma information from music signals and builds a representation in which several hierarchies of pitch events, related with traditional categories of pitches, chords and keys, are simultaneously accessible. The different levels on this keyscape establish the required hierarchical relationships between tonal events and -within- their tonal contexts. This information is discussed in terms of stability through time and pitch space and, after its mapping into a geometric model of perceptual interkey distances, several metrics of tonal stability are proposed.
 Through three case studies, we discuss the applicability of the algorithm for cadence finding, tonal tension peaks modeling and stability-based structural analysis.
Perceptual, attentional and motor studies in unilateral neglect
Creators: name: Mattingley., Jason Brett
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Single and Double Photoionization and Photodissociation of Toluene by Soft X-rays in Circumstellar Environment
Creators: name: Monfredini, T.
name: Fantuzzi, F.
name: Nascimento, M. A. C.
name: Wolff, W.
name: Boechat-Roberty, H. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The formation of polycyclic aromatic hydrocarbons (PAHs) and their methyl derivatives occurs mainly in the dust shells of asymptotic giant branch (AGB) stars. The bands at 3.3 and 3.4 $μ$m, observed in infrared emission spectra of several objects, are attributed C-H vibrational modes in aromatic and aliphatic structures, respectively. In general, the feature at 3.3 $μ$m is more intense than the 3.4 $μ$m. Photoionization and photodissociation processes of toluene, the precursor of methylated PAHs, were studied using synchrotron radiation at soft X-ray energies around the carbon K edge with time-of-flight mass spectrometry. Partial ion yields of a large number of ionic fragments were extracted from single and 2D-spectra, where electron-ion coincidences have revealed the doubly charged parent-molecule and several doubly charged fragments containing seven carbon atoms with considerable abundance. \textit{Ab initio} calculations based on density functional theory were performed to elucidate the chemical structure of these stable dicationic species. The survival of the dications subjected to hard inner shell ionization suggests that they could be observed in the interstellar medium, especially in regions where PAHs are detected. The ionization and destruction of toluene induced by X-rays were examined in the T Dra conditions, a carbon-rich AGB star. In this context, a minimum photodissociation radius and the half-life of toluene subjected to the incidence of the soft X-ray flux emitted from a companion white dwarf star were determined.
description: 11 pages, 4 figures, accept for publication in ApJ
H2 distribution during formation of multiphase molecular clouds
Creators: name: Valdivia, Valeska
name: Hennebelle, Patrick
name: Gérin, Maryvonne
name: Lesaffre, Pierre
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: H2 is the simplest and the most abundant molecule in the ISM, and its formation precedes the formation of other molecules. Understanding the dynamical influence of the environment and the interplay between the thermal processes related to the formation and destruction of H2 and the structure of the cloud is mandatory to understand correctly the observations of H2. We perform high resolution MHD colliding flow simulations with the AMR code RAMSES in which the physics of H2 has been included. We compare the simulation results with various observations including the column densities of excited rotational levels. Due to a combination of thermal pressure, ram pressure and gravity, the clouds produced at the converging point of HI streams are highly inhomogeneous. H2 molecules quickly form in relatively dense clumps and spread into the diffuse interclump gas. This in particular leads to the existence of significant abundances of H2 in the diffuse and warm gas that lies in between clumps. Simulations and observations show similar trends, specially for the HI-to-H2 transition. The abundances of excited rotational levels, calculated at equilibrium in the simulations are very similar to the observed abundances inferred from FUSE results. This is a direct consequence of the presence of the H2 enriched diffuse and warm gas. Our simulations show that H2 rapidly forms in the dense clumps and, due to the complex structure of molecular clouds, quickly spreads at lower densities. Consequently a significant fraction of warm H2 exists in the low density gas. This warm H2 leads to column densities of excited rotational levels close to the observed ones likely revealing the complex intermix between the warm and the cold gas in molecular clouds. This suggests that the 2-phase structure of molecular clouds is an essential ingredient to fully understand molecular hydrogen in these objects.
description: 16 pages, 19 figures. Accepted for publication in A&A
Theory of Lee-Naughton-Lebed's Oscillations in Moderately Strong Electric Fields in Layered Quasi-One-Dimensional Conductors
Creators: name: Lebed, Andrei G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In framework of some extension of the quasi-classical Boltzmann kinetic equation, we show that a moderately strong electric field splits the so-called Lee-Naughton-Lebed's magnetoconductivity maxima in a layered quasi-one-dimensional conductor, if we use some reasonable approximation to the equation. By means of the above mentioned approximation, we obtain analytical formula for conductivity in high magnetic and moderately high electric fields and show that it coincides with the hypothetical formula as well as adequately describes the pioneering experimental data by Kobayashi et al. [K. Kobayashi, M. Saito, E. Omichi, and T. Osada, Phys. Rev. Lett. \textbf{96}, 126601 (2006)].
description: 1 figure
An Architecture for Reproducible Computational Geosciences
Creators: name: Nüst, Daniel
name: Schutzeichel, Marc
Publisher: name: Zenodo
Year: 2017
Subjects: reproducible research
open science

description: Reproducibility is a cornerstone of science but poses a large challenge when it comes to modern computational sciences. Initiatives for Openness must be accompanied by an infrastructure going beyond the state of the art in scientific publications and preservation of knowledge. Building on the concept of Executable Research Compendia (ERC), this work presents an architecture to support a scholarly process for computational geosciences. In this architecture the novel reproducibility service enriches scientific publications and integrates with the existing platforms.
description: The poster abstract was reviewed and accepted for presentation at the 20th conference for geo-information science by AGILE in Wageningen, The Netherlands, 2017, see https://agile-online.org/programme-2017/accepted-papers-and-posters-2017
Is the $β$ Pictoris member GJ3039AB a physical binary? What the rotation periods tell us
Creators: name: Messina, Sergio
name: Naves, Ramon
name: Medhi, Biman J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have carried out a multi-band photometric monitoring of the close visual binary GJ3039, consisting of a M4 primary and a fainter secondary component, and likely member of the young stellar association $β$ Pictoris (24-Myr old). From our analysis we found that both components are photometric variables and, for the first time, we detected two micro-flare events. We measured from periodogram analysis of the photometric time series two rotation periods P = 3.355d and P = 0.925d, that we could attribute to the brighter GJ3039A and the fainter GJ3039B components, respectively. A comparison of these rotation periods with the period distribution of other $β$ Pictoris members further supports that GJ3039A is a member of this association. We find that also GJ3039B could be a member, but the infrared magnitude differences between the two components taken from the literature and the photometric variability, which is found to be comparable in both stars, suggest that GJ3039B could be a foreground star physically unbound to the primary A component.
description: Accepted by New Astronomy; 17 pages, 5 figures
Irreversible simulated tempering
Creators: name: Sakai, Yuji
name: Hukushima, Koji
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An extended ensemble Monte Carlo algorithm is proposed by introducing a violation of the detailed balance condition to the update scheme of the inverse temperature in simulated tempering. Our method, irreversible simulated tempering, is constructed based on the framework of the skew detailed balance condition. By applying this method to the ferromagnetic Ising model in two dimensions on a square lattice as a benchmark, the dynamical behavior of the inverse temperature and an autocorrelation function of the magnetization are studied numerically. It is found that the relaxation dynamics of the inverse temperature changes qualitatively from diffusive to ballistic by violating the detailed balance condition. Consequently, the autocorrelation time of magnetization is several times smaller than that for the conventional algorithm satisfying the detailed balance condition.
description: 8 pages, 9 figures
GeoMuzik: A Geographic Interface for Large Music Collections
Creators: name: Costa, Marcelo
Publisher: name: Zenodo
Year: 2008

description: This report presents the master thesis proposal for a development of an interface for visualization
 of large music collections. By proposing a new paradigm for navigation and
 visualization of these collections, we intend to enhance user experience and music discovery.
 This is achieved by generating a geographic interface to display the music collection contents
 as if they were spread out in a globe or map. Music collection information is retreived from
 widely known web services such as Wikipedia and Last.FM. Content is displayed according
 to number of plays and genre. Tags retrieved from Last.FM were used to identify dierent
 genres for each artist. Music discovery is encouraged by a playlist implementation. Users
 trace a route in the world map, and through triangulation techniques, GeoMuzik samples
 the route and retrieves artists and songs that are close to the pathway dened. In order to
 evaluate the results a survey was applied to a certain number of subjects and its results are
 presented as part of this piece of work. Conclusions and future work present the impacts
 obtained from the use of the interface and the possible extensions that would improve this
 new approach.
Factors affecting the success of canine adoptions from animal welfare shelters
Creators: name: Marston., Linda
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Physics of Core-Collapse Supernovae in Three Dimensions: a Sneak Preview
Creators: name: Janka, H. -Thomas
name: Melson, Tobias
name: Summa, Alexander
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Nonspherical mass motions are a generic feature of core-collapse supernovae, and hydrodynamic instabilities play a crucial role for the explosion mechanism. First successful neutrino-driven explosions could be obtained with self-consistent, first-principle simulations in three spatial dimensions (3D). But 3D models tend to be less prone to explosion than corresponding axisymmetric (2D) ones. This has been explained by 3D turbulence leading to energy cascading from large to small spatial scales, inversely to the 2D case, thus disfavoring the growth of buoyant plumes on the largest scales. Unless the inertia to explode simply reflects a lack of sufficient resolution in relevant regions, it suggests that some important aspect may still be missing for robust and sufficiently energetic neutrino-powered explosions. Such deficits could be associated with progenitor properties like rotation, magnetic fields or pre-collapse perturbations, or with microphysics that could lead to an enhancement of neutrino heating behind the shock. 3D simulations have also revealed new phenomena that are not present in 2D, for example spiral modes of the standing accretion shock instability (SASI) and a stunning dipolar lepton-emission self-sustained asymmetry (LESA). Both impose time- and direction-dependent variations on the detectable neutrino signal. The understanding of these effects and of their consequences is still in its infancy.
description: 35 pages, 5 figures; to appear in Annual Review of Nuclear and Particle Science, vol. 66. Non-copyedited version prepared by the authors
Acceleration of Thermal Protons By Generic Phenomenological Mechanisms
Creators: name: Petrosian, Vahé
name: Kang, Byungwoo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate heating and acceleration of protons from a thermal gas with a generic diffusion and acceleration model, and subject to Coulomb scattering and energy loss, as was carried out in Petrosian & East (2008) for electrons. As protons gain energy their loss to electrons becomes important. Thus, we need to solve the coupled proton-electron kinetic equation. We numerically solve the coupled Fokker-Plank equations and computes the time evolution of the spectra of both particles. We show that this can lead to a quasi-thermal component plus a high energy nonthermal tail. We determine the evolution of nonthermal tail and the quasi-thermal component. The results may be used to explore the possibility of inverse bremsstrahlung radiation as a source of hard X-ray emissions from hot sources such as solar flares, accretion disk coronas and the intracluster medium of galaxy clusters. We find that emergence of nonthermal protons is accompanied by excessive heating of the entire plasma, unless the turbulence needed for scattering and acceleration is steeper than Kolmogorov and the acceleration parameters, the duration of the acceleration, and/or the initial distributions are significantly fine-tuned. These results severely constraint the feasibility of nonthermal inverse bremsstrahlung process producing hard X-ray emissions. However the nonthermal tail may be the seed particles for further re-acceleration to relativistic energies, say by a shock. In the Appendix we present some tests of the integrity of the algorithm used and present a new formula for the energy loss rate due to inelastic proton-proton interactions.
description: 21 pages, 9 figures, accepted for publication in ApJ
Adaptation of the Seam Carving Technique for Improving Audio Time-Scaling
Creators: name: Tarrat, Josep Maria
Publisher: name: Zenodo
Year: 2008

description: This Master Thesis addresses the topic of adapting the Seam Carving Algorithm, an Image Processing Technique (IPT), for an audio Time-Scale application. We adapt an image-resizing algorithm for analyzing spectrograms images, which represent audio information. This approach aims to improve certain limitations of an existing Time Scale algorithm. The current Time-Scale Algorithm produces some sound artifacts when there is a slow audio attack and a large time-scale factor is applied. We suggest that using Seam Carving Algorithm some improvements could be achieved due to a bigger and customized analysis window than the Time-Scale Algorithm. Basically, we assume that a window with low energy of transients can be time-scaled without artifacts and, contrary, we must keep the duration of zones with high energy of transients. Using IPT we can obtain some results that are not possible using only classical Audio Processing Techniques. For instance, analyzing the Spectrogram using IPT can analyze long-term patterns difficult to detect in the Short-Term Fourier Transform (STFT). This method splits first the audio signal based on rhythm information. The Seam Carving Algorithm is applied to each window of the spectrogram images resulting from the segmentation, generating an envelope of varying time-scaling factors. From the results, we argue that with the appropriate analysis parameters, we improve the transformation quality. Also, we observed that the rhythm-based segmentation is crucial, so that a user-supervised process will be useful.
No Riemann-hurwitz formula for the p-ranks of relative class groups
Creators: name: Gras, Georges
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We disprove, by means of numerical examples, the existence of a Riemann-Hurwitz formula for the p-ranks of relative class groups in a p-ramified p-extension K/k of number fields of CM-type containing ?\_p. In the cyclic case of degree p, under some assumptions on the p-class group of k, we prove some properties of the Galois structure of the p-class group of K; but we have found, through numerical experimentation, that some theoretical group structures do not exist in this particular situation, and we justify this fact. Then we show, in this context, that Kida's formula on lambda invariants is valid for the p-ranks if and only if the p-class group of K is reduced to the group of ambiguous classes, which is of course not always the case.
description: 6 pages + tables num\'eriques
Chroma-based Predominant Melody and Bass Line Extraction from Music Audio Signals
Creators: name: Salamon, Justin
Publisher: name: Zenodo
Year: 2008

description: In this dissertation we present the research work we have carried out on melody and bass line extraction from music audio signals using chroma features. First an introduction to the task at hand is given and important relevant concepts are defined. Next, the scientific background to our work is provided, including results obtained by state of the art melody and bass line extraction systems. We then present a new approach to melody and bass line extraction based on chroma features, making use of the Harmonic Pitch Class Profile (HPCP) [G´omez 06a]. Based on our proposed approach, several peak tracking algorithms for selecting the melody (or bass line) pitch classes are presented. Next, the evaluation methodology and music collections and metrics used for evaluation are discussed, followed by the evaluation results. The results show that as a salience function our proposed HPCP based approach has comparable performance to that of other state of the art systems, in some cases outperforming them. The tracking procedures suggested are shown to require further work in order to achieve a significant improvement in the results. We present some initial experiments on similarity computation, the results of which are very encouraging, suggesting that the extracted representations could be useful in the context of similarity based applications. The dissertation is concluded with an overview of the work done and goals achieved, issues which require further work and some proposals for future investigation.
Causal structure of general relativistic spacetimes
Creators: name: Howard, E. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present some of the recent results and open questions on the causality problem in General Relativity. The concept of singularity is intimately connected with future trapped surface and inner event horizon formation. We offer a brief overview of the Hawking Penrose singularity theorems and discuss a few open problems concerning the future Cauchy development (domain of dependence), breakdown criteria and energy conditions for the horizon stability. A key question is whether causality violating regions, generating a Cauchy horizon are allowed. We raise several questions concerning the invisibility and stability of closed trapped surfaces from future null infinity and derive the imprisonment conditions. We provide an new perspective of the causal boundaries and spacelike conformal boundary extensions for time oriented Lorentzian manifolds and more exotic settings.
description: 4 pages, 1 figure, Conference, 24/26 November 2009, Perth, WA
Investigation on an innovative pyro-electrohydrodynamic jet dispensing for accumulating low abundant biomolecules
Creators: name: Itri, Simona
Publisher: name: Zenodo
Year: 2023
Subjects: Alzheimer's disease

description: The Ph.D. thesis presented here was developed in the framework of the European FET-Open Project
 called “SensApp”. SensApp stands for “Super-sensitive detection of Alzheimer’s disease biomarkers
 in plasma by an innovative droplet split-and stack approach”. The main goal of the project was the
 development of a new biosensing device based on an innovative technology, called “droplet split
 and stack” (DSS), able to dispense and accumulate very tiny droplets of body fluid samples and to
 detect biomarkers of the Alzheimer’s disease, such as b-amyloid and Tau proteins, with high
 sensitivity (≤ 30 pg/mL).
Topological Number of Edge States
Creators: name: Hashimoto, Koji
name: Kimura, Taro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the edge states of the four-dimensional class A system can have topological charges, which are characterized by Abelian/non-Abelian monopoles. The edge topological charges are a new feature of relations among theories with different dimensions. From this novel viewpoint, we provide a non-Abelian analogue of the TKNN number as an edge topological charge, which is defined by an SU(2) 't Hooft-Polyakov BPS monopole through an equivalence to Nahm construction. Furthermore, putting a constant magnetic field yields an edge monopole in a non-commutative momentum space, where D-brane methods in string theory facilitate study of edge fermions.
description: 13 pages, 2 figures
Development of a novel formulation of levodopa for the treatment of Parkinson's disease
Creators: name: Marriott., Jennifer Lillian
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Detecting and Describing Percussive Events in Polyphonic Music
Creators: name: Haro, Martin
Publisher: name: Zenodo
Year: 2008

description: The present thesis deals with the automatic description of percussive events in "real world" polyphonic music. After taking a pattern recognition approach we evaluate "bag of frames" and "object-level temporal evolution" descriptors extracted from 153 frame-level features adding up a total of more than 1450 descriptors. Three binary instrument-level support vector machines models are built from a training set of more that 100 songs and 10 genres. We observe an improvement in the classification results when object-level temporal evolution descriptors are added to the feature set. Then we evaluate the binary models within a whole drum transcription system achieving comparable results with state of the art algorithms. Finally we present 17 mid-level percussion descriptors and evaluate their usefulness among MIR tasks like genre classification, danceability estimation and Western non-Western discrimination. We conclude that the presented percussion-related descriptors provide complementary information to "classic" descriptors that could help in the previously mentioned MIR tasks.
Thermodynamics and Entanglement Entropy with Weyl Corrections
Creators: name: Dey, Anshuman
name: Mahapatra, Subhash
name: Sarkar, Tapobrata
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider charged black holes in four dimensional AdS space, in the presence of a Weyl correction. We obtain the solution including the effect of back-reaction, perturbatively up to first order in the Weyl coupling, and study its thermodynamic properties. This is complemented by a calculation of the holographic entanglement entropy of the boundary theory. The consistency of results obtained from both computations is established.
description: 1 + 21 Pages, LaTeX, 11 .eps figures
Simplified DM models with the full SM gauge symmetry : the case of $t$-channel colored scalar mediators
Creators: name: Ko, P.
name: Natale, Alexander
name: Park, Myeonghun
name: Yokoya, Hiroshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The general strategy for dark matter (DM) searches at colliders currently relies on simplified models. In this paper, we propose a new $t$-channel UV-complete simplified model that improves the existing simplified DM models in two important respects: (i) we impose the full SM gauge symmetry including the fact that the left-handed and the right-handed fermions have two independent mediators with two independent couplings, and (ii) we include the renormalization group evolution when we derive the effective Lagrangian for DM-nucleon scattering from the underlying UV complete models by integrating out the $t$-channel mediators. The first improvement will introduce a few more new parameters compared with the existing simplified DM models. In this study we look at the effect this broader set of free parameters has on direct detection and the mono-$X$ + MET ($X$=jet,$W,Z$) signatures at 13 TeV LHC while maintaining gauge invariance of the simplified model under the full SM gauge group. We find that the direct detection constraints require DM masses less than 10 GeV in order to produce phenomenologically interesting collider signatures. Additionally, for a fixed mono-W cross section it is possible to see very large differences in the mono-jet cross section when the usual simplified model assumptions are loosened and isospin violation between RH and LH DM-SM quark couplings are allowed.
description: 26 pages, 15 figures
The Atlas3D project -- XXXI. Nuclear radio emission in nearby early-type galaxies
Creators: name: Nyland, Kristina
name: Young, Lisa M.
name: Wrobel, Joan M.
name: Sarzi, Marc
name: Morganti, Raffaella
name: Alatalo, Katherine
name: Blitz, Leo
name: Bournaud, Frederic
name: Bureau, Martin
name: Cappellari, Michele
name: Crocker, Alison F.
name: Davies, Roger L.
name: Davis, Timothy A.
name: de Zeeuw, P. T.
name: Duc, Pierre-Alain
name: Emsellem, Eric
name: Khochfar, Sadegh
name: Krajnovic, Davor
name: Kuntschner, Harald
name: McDermid, Richard M.
name: Naab, Thorsten
name: Oosterloo, Tom
name: Scott, Nicholas
name: Serra, Paolo
name: Weijmans, Anne-Marie
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of a high-resolution, 5 GHz, Karl G. Jansky Very Large Array study of the nuclear radio emission in a representative subset of the Atlas3D survey of early-type galaxies (ETGs). We find that 51 +/- 4% of the ETGs in our sample contain nuclear radio emission with luminosities as low as 10^18 W/Hz. Most of the nuclear radio sources have compact (< 25-110 pc) morphologies, although < 10% display multi-component core+jet or extended jet/lobe structures. Based on the radio continuum properties, as well as optical emission line diagnostics and the nuclear X-ray properties, we conclude that the majority of the central 5 GHz sources detected in the Atlas3D galaxies are associated with the presence of an active galactic nucleus (AGN). However, even at sub-arcsecond spatial resolution, the nuclear radio emission in some cases appears to arise from low-level nuclear star formation rather than an AGN, particularly when molecular gas and a young central stellar population is present. This is in contrast to popular assumptions in the literature that the presence of a compact, unresolved, nuclear radio continuum source universally signifies the presence of an AGN. Additionally, we examine the relationships between the 5 GHz luminosity and various galaxy properties including the molecular gas mass and - for the first time - the global kinematic state. We discuss implications for the growth, triggering, and fueling of radio AGNs, as well as AGN-driven feedback in the continued evolution of nearby ETGs.
description: Accepted for publication in MNRAS. 53 pages, 16 figures
Fractality in resistive circuits: The Fibonacci resistor networks
Creators: name: Anjos, Petrus H. R. dos
name: Oliveira, Fernando A.
name: Azevedo, David L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose two new kinds of infinite resistor networks based on the Fibonacci sequence: a serial association of resistor sets connected in parallel (type 1) or a parallel association of resistor sets connected in series (type 2). We show that the sequence of the network's equivalent resistance converges uniformly in the parameter $α=\frac{r_2}{r_1} \in [0,+\infty)$, where $r_1$ and $r_2$ are the first and second resistors in the network. We also show that these networks exhibit self-similarity and scale invariance, which mimics a self-similar fractal. We also provide some generalizations, including resistor networks based on high-order Fibonacci sequences and other recursive combinatorial sequences.
Expressive characterization of flamenco singing
Creators: name: Merchán, Francisca
Publisher: name: Zenodo
Year: 2008

description: Expressive characterization of flamenco singing intends to analyze the main differences between performances, players, playing styles and emotional intentions. This work addresses the characterization of expressive flamenco singing performances in two stages: first, a qualitative approach interviewing flamenco experts to get hints of what are the main particular aspects of flamenco singing and then, a second approach comparing audio recordings of the same melodies sung in both flamenco style and in their original styles (classic, Cuban folk and jazz) by a professional singer. This research intends to provide a characterization of flamenco singing based on acoustic analysis of audio recordings and feature extraction such as energy, pitch, flatness, hfc, spectral roll-off, etc.
On the irrationality of certain coefficients of the Alekseev-Torossian associator
Creators: name: Felder, Matteo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We give explicit formulas for the first few coefficients of the Alekseev-Torossian associator and a second Drinfeld associator. This is done by analyzing the free and transitive action of the Grothendieck-Teichmüller group and its Lie algebra $\mathfrak{grt}_1$ on the set of Drinfeld associators. As a result we obtain that, up to a conjecture on multiple zeta values, both associators are not rational.
description: 24 pages
5G-ENSURE_D2.1 Use Cases
Creators: name: VELA, Gorka Juan LENDRINO
Publisher: name: Zenodo
Year: 2016
Subjects: 5g Network
Security

description: This document describes a number of use cases illustrating security and privacy aspects of 5G networks.
 Based on similarities in technical, service and/or business-model related aspects, the use cases are grouped
 into use case clusters covering a wide variety of deployments including, for example, the Internet of Things,
 Software Defined Networks and virtualization, ultra-reliable and standalone operations. The use cases
 address security and privacy enhancements of current networks as well as security and privacy functionality
 needed by new 5G features. Each use case is described in a common format where actors, assumptions and
 a sequence of steps characterising the use case are presented together with a short analysis of the security
 challenges and the properties of a security solution. Each use case cluster description is concluded with a
 “5G Vision” outlining the associated enhancements in security and privacy anticipated in 5G networks and
 systems. A summary of the 5G visions and conclusions are provided at the end of the document.
Senecio alatopetiolatus Calvo 2016
Creators: name: Calvo, Joel
name: Freire, Efraín
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Senecio
Senecio alatopetiolatus

description: 1. Senecio alatopetiolatus Calvo et al. (2016: 177). Type:— ECUADOR. Tungurahua, near laguna at the western side of Cerro Hermoso, 1°13 ʹ 51 ʺ S 78°18 ʹ 04 ʺ W, 3 Dec 2010, P. Sklenář 13100 (holotype: PRC-405860!; isotypes: MO!, QCA-215788!)
 Distribution: — Ecuador.
description: Published as part of Calvo, Joel & Freire, Efraín, 2016, A nomenclator of Senecio group Lasiocephalus (Compositae, Senecioneae): nomenclatural and taxonomic notes and new typifications, pp. 116-130 in Phytotaxa 260 (2) on page 118, DOI: 10.11646/phytotaxa.260.2.2, http://zenodo.org/record/13672694
Nulling Data Reduction and On-Sky Performance of the Large Binocular Telescope Interferometer
Creators: name: Defrère, D.
name: Hinz, P. M.
name: Mennesson, B.
name: Hoffmann, W. F.
name: Millan-Gabet, R.
name: Skemer, A. J.
name: Bailey, V.
name: Danchi, W. C.
name: Downey, E. C.
name: Durney, O.
name: Grenz, P.
name: Hill, J. M.
name: McMahon, T. J.
name: Montoya, M.
name: Spalding, E.
name: Vaz, A.
name: Absil, O.
name: Arbo, P.
name: Bailey, H.
name: Brusa, G.
name: Bryden, G.
name: Esposito, S.
name: Gaspar, A.
name: Haniff, C. A.
name: Kennedy, G. M.
name: Leisenring, J. M.
name: Marion, L.
name: Nowak, M.
name: Pinna, E.
name: Powell, K.
name: Puglisi, A.
name: Rieke, G.
name: Roberge, A.
name: Serabyn, E.
name: Sosa, R.
name: Stapeldfeldt, K.
name: Su, K.
name: Weinberger, A. J.
name: Wyatt, M. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Large Binocular Telescope Interferometer (LBTI) is a versatile instrument designed for high-angular resolution and high-contrast infrared imaging (1.5-13 microns). In this paper, we focus on the mid-infrared (8-13 microns) nulling mode and present its theory of operation, data reduction, and on-sky performance as of the end of the commissioning phase in March 2015. With an interferometric baseline of 14.4 meters, the LBTI nuller is specifically tuned to resolve the habitable zone of nearby main-sequence stars, where warm exozodiacal dust emission peaks. Measuring the exozodi luminosity function of nearby main-sequence stars is a key milestone to prepare for future exoEarth direct imaging instruments. Thanks to recent progress in wavefront control and phase stabilization, as well as in data reduction techniques, the LBTI demonstrated in February 2015 a calibrated null accuracy of 0.05% over a three-hour long observing sequence on the bright nearby A3V star beta Leo. This is equivalent to an exozodiacal disk density of 15 to 30 zodi for a Sun-like star located at 10pc, depending on the adopted disk model. This result sets a new record for high-contrast mid-infrared interferometric imaging and opens a new window on the study of planetary systems.
description: 17 pages, 18 figures (resubmitted to ApJ with referee's comments)
An evaluation of two nosocomial infection clinical indicators as national performance measures of quality
Creators: name: Majoor., Jennifer W.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.