cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Symmetry analysis of strain, electric and magnetic fields in the $\text{Bi}_2\text{Se}_3$-class of topological insulators
Creators: name: Jensen, Mathias Rosdahl
name: Paaske, Jens
name: Lunde, Anders Mathias
name: Willatzen, Morten
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Based on group theoretical arguments we derive the most general Hamiltonian for the $\text{Bi}_2\text{Se}_3$-class of materials including terms to third order in the wave vector, first order in electric and magnetic fields, first order in strain and first order in both strain and wave vector. We determine analytically the effects of strain on the electronic structure of $\text{Bi}_2\text{Se}_3$. For the most experimentally relevant surface termination we analytically derive the surface state spectrum, revealing an anisotropic Dirac cone with elliptical constant energy counturs giving rise to different velocities in different in-plane directions. The spin-momentum locking of strained $\text{Bi}_2\text{Se}_3$ is shown to be modified and for some strain configurations we see a non-zero spin component perpendicular to the surface. Hence, strain control can be used to manipulate the spin degree of freedom via the spin-orbit coupling. We show that for a thin film of $\text{Bi}_2\text{Se}_3$ the surface state band gap induced by coupling between the opposite surfaces changes opposite to the bulk band gap under strain. Tuning the surface state band gap by strain, gives new possibilities for the experimental investigation of the thickness dependent gap and optimization of optical properties relevant for, e.g., photodetector and energy harvesting applications. We finally derive analytical expressions for the effective mass tensor of the Bi$_2$Se$_3$ class of materials as a function of strain and electric field.
Web service standards registry project
Creators: name: Xiao, Zhong Xia.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Are there multiple populations of Fast Radio Bursts?
Creators: name: Palaniswamy, Divya
name: Li, Ye
name: Zhang, Bing
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The repeating FRB 121102 (the "repeater") shows {repetitive bursting activities} and was localized in a host galaxy at $z=0.193$. On the other hand, despite dozens of hours of telescope time spent on follow-up observations, no other FRBs have been observed to repeat. Yet, it has been speculated that the repeater is the prototype of FRBs, and that other FRBs should show similar repeating patterns. Using the published data, we compare the repeater with other FRBs in the observed time interval ($Δt$) - flux ratio ($S_i / S_{i+1}$) plane. We find that whereas other FRBs occupy the upper (large $S_i / S_{i+1}$) and right (large $Δt$) regions of the plane due to the non-detections of other bursts, some of the repeater bursts fall into the lower-left region of the plot (short interval and small flux ratio) excluded by the non-detection data of other FRBs. The trend also exists even if one only selects those bursts detectable by the Parkes radio telescope. If other FRBs were similar to the repeater, our simulations suggest that the probability that none of them have been detected to repeat with the current searches would be $\sim (10^{-4}-10^{-3})$. We suggest that the repeater is not representative of the entire FRB population and that there is strong evidence of more than one population of FRBs.
description: ApJL, updated to match the published version
Uniform distribution as an aspect of quality of service in wireless sensor networks
Creators: name: Kokolj, Srdjan.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Domain area detection as a concrete approach towards generic automatic text summarisation
Creators: name: Wuysan, Deny.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Consumer attitudes and acceptability toward edible New Zealand native plants
Creators: name: Torrico, Damir
name: Nie, Xin
name: Lukito, Damselina
name: Deb Choudhury, Santanu
name: Hutchings, Scott
name: Realini Cujo, Carolina
Publisher: name: AgResearch
Year: 2023
Subjects: classificationCode: 310899
subject: Plant biology not elsewhere classified
classificationCode: 350601
subject: Consumer behaviour

description: This study aimed to investigate consumers’ perceptions, emotions, and acceptability of selected edible New Zealand native plants. A survey-type methodology was employed, recruiting participants voluntarily through email invitations. A total of N = 100 participants, ranging in age from 18 to 70 and with diverse ethnic backgrounds, were asked to answer questions regarding six specific edible New Zealand species and edible native plants in general. Results showed that participants had varying levels of familiarity with the specific plants, with a majority feeling “calm”, “happy”, and “interested” when presented with them. Factors deemed most important when thinking about the six selected plants included edibility and safety. When considering native plants in general, participants rated factors such as general nutrition, safety, and sustainability as important. The study found that a significant proportion of participants expressed a positive intention to consume native plants in the future, but the levels of interest varied depending on the demographic distribution. The study provides insights into consumer attitudes toward edible native plants and highlights the potential for these food ingredients to be included in mainstream diets.
Authentication in an internet banking environment : towards developing a strategy for fraud detection
Creators: name: Bignell, Kane Baxter.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Superluminal X-waves in a polariton quantum fluid
Creators: name: Gianfrate, A.
name: Dominici, L.
name: Voronych, O.
name: Matuszewski, M.
name: Stobińska, M.
name: Ballarini, D.
name: De Giorgi, M.
name: Gigli, G.
name: Sanvitto, D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this work we experimentally demonstrate for the first time spontaneous generation of two-dimensional exciton-polariton X-waves. X-waves belong to the family of localized packets, which are capable of sustaining their shape with no spreading even in the linear regime. This allows to keep the packet shape and size for very low densities and very long times compared, for instance, to soliton waves, which always necessitate a nonlinearity to compensate the diffusion. Here we exploit the polariton nonlinearity and unique structured dispersion, comprising both positive- and negative-mass curvatures, to trigger an asymmetric four wave mixing in the momentum space. This ultimately enables self-formation of a spatial X-wave front. By means of ultrafast imaging experiments we observe the early reshaping of the initial Gaussian packet into the X-pulse and its propagation even for vanishing small densities. This allows us to outline the crucial effects and parameters driving the phenomena and to tune the degree of peak superluminal propagation, which we found to be in a good agreement with numerical simulations.
description: 10 pages, 6 figures, 2 ancillary movie files
Learning diagnostic classification from small angle X-ray scatter data
Creators: name: Butler, Shane M.
Publisher: name: Monash University
Year: 2022

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Batch implementation of growing self organizing map for data mining
Creators: name: Yu, Yaohua.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Interactive Natural Language Acquisition in a Multi-modal Recurrent Neural Architecture
Creators: name: Heinrich, Stefan
name: Wermter, Stefan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computation and Language (cs.CL)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: For the complex human brain that enables us to communicate in natural language, we gathered good understandings of principles underlying language acquisition and processing, knowledge about socio-cultural conditions, and insights about activity patterns in the brain. However, we were not yet able to understand the behavioural and mechanistic characteristics for natural language and how mechanisms in the brain allow to acquire and process language. In bridging the insights from behavioural psychology and neuroscience, the goal of this paper is to contribute a computational understanding of appropriate characteristics that favour language acquisition. Accordingly, we provide concepts and refinements in cognitive modelling regarding principles and mechanisms in the brain and propose a neurocognitively plausible model for embodied language acquisition from real world interaction of a humanoid robot with its environment. In particular, the architecture consists of a continuous time recurrent neural network, where parts have different leakage characteristics and thus operate on multiple timescales for every modality and the association of the higher level nodes of all modalities into cell assemblies. The model is capable of learning language production grounded in both, temporal dynamic somatosensation and vision, and features hierarchical concept abstraction, concept decomposition, multi-modal integration, and self-organisation of latent representations.
description: Received 25 June 2016; Accepted 1 February 2017
Noncommutative Bell polynomials and the dual immaculate basis
Creators: name: Novelli, Jean-Christophe
name: Thibon, Jean-Yves
name: Toumazet, Frédéric
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We define a new family of noncommutative Bell polynomials in the algebra of free quasi-symmetric functions and relate it to the dual immaculate basis of quasi-symmetric functions. We obtain noncommutative versions of Grinberg's results [Canad. J. Math. 69 (2017), 21--53], and interpret them in terms of the tridendriform structure of WQSym. We then present a variant of Rey's self-dual Hopf algebra of set partitions [FPSAC'07, Tianjin] adapted to our noncommutative Bell polynomials and give a complete description of the Bell equivalence classes as linear extensions of explicit posets.
description: 27 pages
Wang tiles for multi-motif pattern synthesis and terrain generation
Creators: name: Wu, Wei.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Mass Defect Effects in Atomic Clocks
Creators: name: Yudin, V. I.
name: Taichenachev, A. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider some implications of the mass defect on the frequency of atomic transitions. We have found that some well-known frequency shifts (gravitational shift and motion-induced shifts such as: quadratic Doppler and micromotion shifts) can be interpreted as consequences of the mass defect in quantum atomic physics, i.e., without the need for the concept of time dilation used in special and general relativity theories. Moreover, we show that the inclusion of the mass defect leads to previously unknown shifts for clocks based on trapped ions.
description: 8 pages, 1 figure
Rotation and Magnetism of Massive Stellar Cores
Creators: name: Kissin, Yevgeni
name: Thompson, Christopher
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The internal rotation and magnetism of evolved massive stars are considered in response to i) the inward pumping of angular momentum through deep and slowly rotating convective layers; and ii) the winding up of a helical magnetic field in radiative layers. Field winding can transport angular momentum effectively even when the toroidal field is limited by kinking. Magnetic helicity is pumped into a growing radiative layer from an adjacent convective envelope (or core). The receding convective envelope that forms during the early accretion phase of a massive star is the dominant source of helicity in its core, yielding a $\sim 10^{13}$ G polar magnetic field in a collapsed neutron star (NS) remnant. Using MESA models of various masses, we find that the NS rotation varies significantly, from $P_{\rm NS} \sim 0.1-1$ s in a 13$\,M_\odot$ model to $P_{\rm NS} \sim 2$ ms in a $25\,M_\odot$ model with an extended core. Stronger inward pumping of angular momentum is found in more massive stars, due to the growing thickness of the convective shells that form during the later stages of thermonuclear burning. On the other hand, stars that lose enough mass to form blue supergiants in isolation end up as very slow rotators. The tidal spin-up of a 40$\,M_\odot$ star by a massive binary companion is found to dramatically increase the spin of the remnant black hole, allowing a rotationally supported torus to form during the collapse. The implications for post-collapse decay or amplification of the magnetic field are also considered.
description: 21 pages, 23 figures, minor revisions including expanded comparison with previous work, Astrophysical Journal, in press
Designing a smart wardrobe : a new mechanism for RFID-based user profiling of fashion preferences
Creators: name: Samara, Frida.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Deficiencies in the Australian new privacy law
Creators: name: Liang, Xiao Dong.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Research on PBL Application in English Reading Teaching at Junior High Schools
Creators: name: Xiuhui Xu
name: Jingjun Yao
Publisher: name: gjrpublication
Year: 2024

description: Problem-Based Learning (PBL) is a student-centered instructional strategy that enhances students' self-directed learning and critical thinking skills by guiding them to solve real-world problems. In junior high school English reading teaching, traditional teaching methods often focus on vocabulary and grammar, neglecting the development of students' reading comprehension and practical application skills. Therefore, this study aims to explore the application effects of PBL in junior high school English reading teaching, with the goal of providing new teaching approaches to improve students' English reading abilities. This study selected two classes from a junior high school as research subjects, utilizing methods such as questionnaires, classroom observations, teaching experiments, and interviews. Several reading problem scenarios related to students' daily lives and interests were designed and implemented in actual classroom teaching. The results indicate that PBL has a significant positive impact on junior high school English reading teaching. However, the study also found that teachers face certain challenges in implementing PBL, such as the difficulty in designing problem scenarios and the high demands of classroom management.
Digital dogfight : liberalism and online political activitism in the United States
Creators: name: Green, Samantha.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Use of self-organizing maps for features selection in content-based image retrieval
Creators: name: Guo, Chen.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Analytically calculated post-Keplerian range and range-rate perturbations: the solar Lense-Thirring effect and BepiColombo
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We analytically calculate the time series for the perturbations $Δρ(t),~Δ\dotρ(t)$ induced by a general disturbing acceleration $\boldsymbol{A}$ on the mutual range $ρ$ and range-rate $\dotρ$ of two test particles $\textrm{A},~\textrm{B}$ orbiting the same spinning body. We apply it to the general relativistic Lense-Thirring effect, due to the primary's spin $\boldsymbol{S}$, and the classical perturbation arising from its quadrupole mass moment $J_2$ for arbitrary orbital geometries and orientation of the source's symmetry axis $\boldsymbol{\hat{S}}$. The Earth-Mercury range and range-rate are nominally affected by the Sun's gravitomagnetic field to the $10~\textrm{m},~10^{-3}~\textrm{cm s}^{-1}$ level, respectively, during the extended phase (2026-2028) of the forthcoming BepiColombo mission to Mercury whose expected tracking accuracy is of the order of $\simeq 0.1~\textrm{m},~2\times 10^{-4}~\textrm{cm s}^{-1}$. The competing signatures due to the solar quadrupole $J_2^\odot$, if modelled at the $σ_{J_2^\odot}\simeq 10^{-9}$ level of the latest planetary ephemerides INPOP17a, are nearly 10 times smaller than the relativistic gravitomagnetic effects. The position and velocity vectors $\mathbf{r},~\mathbf{v}$ of Mercury and Earth are changed by the solar Lense-Thirring effect by about $10~\textrm{m},~1.5~\textrm{m}$ and $10^{-3}~\textrm{cm s}^{-1},~10^{-5}~\textrm{cm s}^{-1}$, respectively, over 2 yr; neglecting such shifts may have an impact on long-term integrations of the inner solar system dynamics over $\sim\textrm{Gyr}$ timescales.
description: LaTex2e, 29 pages, 8 figures, no tables. Matching the version at press in Monthly Notices of the Royal Astronomical Society (MNRAS)
Business intelligence development strategy planning : a framework
Creators: name: Gupta, Priyank.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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A novel approach to perturbative calculations for a large class of interacting boson theories
Creators: name: Bradler, Kamil
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a method of calculating the interacting S-matrix to an arbitrary perturbative order for a large class of boson interaction Lagrangians. The method takes advantage of a previously unexplored link between the $n$-point Green's function and a certain system of linear Diophantine equations. By finding all nonnegative solutions of the system, the task of perturbatively expanding an interacting $S$-matrix becomes elementary for any number of interacting fields, to an arbitrary perturbative order (irrespective of whether it makes physical sense) and for a large class of scalar boson theories. The method does not rely on the position-based Feynman diagrams and promises to be extended to many perturbative models typically studied in quantum field theory. Aside from interaction field calculations we showcase our approach by expanding a pair of Unruh-DeWitt detectors coupled to Minkowski vacuum to an arbitrary perturbative order in the coupling constant. We also link our result to Hafnian as introduced by Caianiello and present a method to list all (2n-1)!! perfect matchings of a complete graph on 2n vertices.
description: v3: Hafnian and the number of perfect matchings of a complete graph on 2n vertices discussed. arXiv admin note: text overlap with arXiv:1608.08274
Re3 : Real-Time Recurrent Regression Networks for Visual Tracking of Generic Objects
Creators: name: Gordon, Daniel
name: Farhadi, Ali
name: Fox, Dieter
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Robust object tracking requires knowledge and understanding of the object being tracked: its appearance, its motion, and how it changes over time. A tracker must be able to modify its underlying model and adapt to new observations. We present Re3, a real-time deep object tracker capable of incorporating temporal information into its model. Rather than focusing on a limited set of objects or training a model at test-time to track a specific instance, we pretrain our generic tracker on a large variety of objects and efficiently update on the fly; Re3 simultaneously tracks and updates the appearance model with a single forward pass. This lightweight model is capable of tracking objects at 150 FPS, while attaining competitive results on challenging benchmarks. We also show that our method handles temporary occlusion better than other comparable trackers using experiments that directly measure performance on sequences with occlusion.
description: Presented at ICRA 2018
Success in online communities : a social capital framework
Creators: name: Khaira, Nirlep.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Centrality bias or final state effects?
Creators: name: Sun, Zhandong
Publisher: name: Zenodo
Year: 2023
Subjects: phenix
ismd23
d+au
direct photon
photon
π0
centrality
multiplicity
raa
nuclear
modification
small systems
cnm effects

description: Talk presented at the International Symposium on Multiparticle Dynamics 2023 conference
Signatures of human impact on self-organized vegetation in the Horn of Africa
Creators: name: Gowda, Karna
name: Iams, Sarah
name: Silber, Mary
Publisher: name: arXiv
Year: 2017
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In many dryland environments, vegetation self-organizes into bands that can be clearly identified in remotely-sensed imagery. The status of individual bands can be tracked over time, allowing for a detailed remote analysis of how human populations affect the vital balance of dryland ecosystems. In this study, we characterize vegetation change in areas of the Horn of Africa where imagery taken in the early 1950s is available. We find that substantial change is associated with steep increases in human activity, which we infer primarily through the extent of road and dirt track development. A seemingly paradoxical signature of human impact appears as an increase in the widths of the vegetation bands, which effectively increases the extent of vegetation cover in many areas. We show that this widening occurs due to altered rates of vegetation colonization and mortality at the edges of the bands, and conjecture that such changes are driven by human-induced shifts in plant species composition. Our findings suggest signatures of human impact that may aid in identifying and monitoring vulnerable drylands in the Horn of Africa.
description: Main text, 11 pages, 5 figures. Supporting information appendix, 19 pages, 11 figures
Reliable context-aware mobile XML web services RCAMS
Creators: name: Green, Peter.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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A semantic distance measure for matching web services
Creators: name: Bramantoro, Arif.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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The utility of randomness in decision tree ensembles
Creators: name: Liu, Fei Tony.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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More on Homological Supersymmetric Quantum Mechanics
Creators: name: Behtash, Alireza
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this work, we first solve complex Morse flow equations for the simplest case of a bosonic harmonic oscillator to discuss localization in the context of Picard-Lefschetz theory. We briefly touch on the exact non-BPS solutions of the bosonized supersymmetric quantum mechanics on algebraic geometric grounds and report that their complex phases can be accessed through the cohomology of WKB 1-form of the underlying singular spectral curve subject to necessary cohomological corrections for non-zero genus. Motivated by Picard-Lefschetz theory, we write down a general formula for the index of $\mathcal{N} = 4$ quantum mechanics with background $R$-symmetry gauge fields. We conjecture that certain symmetries of the refined Witten index and singularities of the moduli space may be used to determine the correct intersection coefficients. A few examples, where this conjecture holds, are shown in both linear and closed quivers with rank-one quiver gauge groups. The $R$-anomaly removal along the "Morsified" relative homology cycles also called "Lefschetz thimbles" is shown to lead to the appearance of Stokes lines. We show that the Fayet-Iliopoulos (FI) parameters appear in the intersection coefficients for the relative homology of the quiver quantum mechanics resulting from dimensional reduction of $2d$ $\mathcal{N}=(2,2)$ gauge theory on a circle and explicitly calculate integrals along the Lefschetz thimbles in $\mathcal{N}=4$ $\mathbb{CP}^{k-1}$ model. The Stokes jumping of coefficients and its relation to wall crossing phenomena is briefly discussed. We also find that the notion of "on-the-wall" index is related to the invariant Lefschetz thimbles under Stokes phenomena. An implication of the Lefschetz thimbles in constructing knots from quiver quantum mechanics is indicated.
description: 29 pages, 13 figures. v3 Improved version, more references added, conclusions added, typos fixed, accepted for publication in PRD
Thermally Driven Topology in Chiral Magnets
Creators: name: Hou, Wen-Tao
name: Yu, Jie-Xiang
name: Daly, Morgan
name: Zang, Jiadong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Chiral magnets give rise to the anti-symmetric Dzyaloshinskii-Moriya (DM) interaction, which induces topological nontrivial textures such as magnetic skyrmions. The topology is characterized by integer values of the topological charge. In this work, we performed the Monte-Carlo calculation of a two-dimensional model of the chiral magnet. A surprising upturn of the topological charge is identified at high fields and high temperatures. This upturn is closely related to thermal fluctuations at the atomic scale, and is explained by a simple physical picture based on triangulation of the lattice. This emergent topology is also explained by a field-theoretic analysis using $CP^{1}$ formalism.
description: 12 pages, 4 figures. Revised version with additional references
A sustainable model for university technology transfer to regional small to medium enterprises
Creators: name: Reilly, Catherine.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Optimizing QoBiz and QoE in web services
Creators: name: Muniyandi, Murali.
Publisher: name: Monash University
Year: 2022

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Using technology acceptance model to understand the impact of Microsoft reporting services
Creators: name: Nantiyakul, Rattanan.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Fisher Metric, Geometric Entanglement and Spin Networks
Creators: name: Chirco, Goffredo
name: Mele, Fabio M.
name: Oriti, Daniele
name: Vitale, Patrizia
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Starting from recent results on the geometric formulation of quantum mechanics, we propose a new information geometric characterization of entanglement for spin network states in the context of quantum gravity. For the simple case of a single-link fixed graph (Wilson line), we detail the construction of a Riemannian Fisher metric tensor and a symplectic structure on the graph Hilbert space, showing how these encode the whole information about separability and entanglement. In particular, the Fisher metric defines an entanglement monotone which provides a notion of distance among states in the Hilbert space. In the maximally entangled gauge-invariant case, the entanglement monotone is proportional to a power of the area of the surface dual to the link thus supporting a connection between entanglement and the (simplicial) geometric properties of spin network states. We further extend such analysis to the study of non-local correlations between two non-adjacent regions of a generic spin network graph characterized by the bipartite unfolding of an Intertwiner state. Our analysis confirms the interpretation of spin network bonds as a result of entanglement and to regard the same spin network graph as an information graph, whose connectivity encodes, both at the local and non-local level, the quantum correlations among its parts. This gives a further connection between entanglement and geometry.
description: 29 pages, 3 figures, revised version accepted for publication
Controlling spam : the e-calling card protocol
Creators: name: Coelle, Christopher.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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Neutron-scattering study of yttrium iron garnet
Creators: name: Shamoto, Shin-ichi
name: Ito, Takashi U.
name: Onishi, Hiroaki
name: Yamauchi, Hiroki
name: Inamura, Yasuhiro
name: Matsuura, Masato
name: Akatsu, Mitsuhiro
name: Kodama, Katsuaki
name: Nakao, Akiko
name: Moyoshi, Taketo
name: Munakata, Koji
name: Ohhara, Takashi
name: Nakamura, Mitsutaka
name: Ohira-Kawamura, Seiko
name: Nemoto, Yuichi
name: Shibata, Kaoru
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The nuclear and magnetic structure and full magnon dispersions of yttrium iron garnet Y$_3$Fe$_5$O$_{12}$ have been studied by neutron scattering. The refined nuclear structure is distorted to a trigonal space group of $R\bar{3}$. The highest-energy dispersion extends up to 86 meV. The observed dispersions are reproduced by a simple model with three nearest-neighbor-exchange integrals between 16$a$ (octahedral) and 24$d$ (tetrahedral) sites, $J_{aa}$, $J_{ad}$, and $J_{dd}$, which are estimated to be 0.00$\pm$0.05, $-$2.90$\pm$0.07, and $-$0.35$\pm$0.08 meV, respectively. The lowest-energy dispersion below 14 meV exhibits a quadratic dispersion as expected from ferromagnetic magnons. The imaginary part of $q$-integrated dynamical spin susceptibility $χ$"($E$) exhibits a square-root energy-dependence in the low energies. The magnon density of state is estimated from the $χ$"($E$) obtained on an absolute scale. The value is consistent with a single polarization mode for the magnon branch expected theoretically.
description: 9 pages, 9 figures
The diffusion of wireless LANs technology and the impact of the various 802.11 standards on higher education institutions in Australia
Creators: name: Allon, Ori.
Publisher: name: Monash University
Year: 2022

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.
Supporting location-awareness in pervasive computing using sensor networks
Creators: name: Hii, Shiun Hwa
Publisher: name: Monash University
Year: 2022

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.
A numerical approach for particle-vortex interactions based on volume-averaged equations
Creators: name: Fukada, Toshiaki
name: Fornari, Walter
name: Brandt, Luca
name: Takeuchi, Shintaro
name: Kajishima, Takeo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: To study the dynamics of particles in turbulence when their sizes are comparable to the smallest eddies in the flow, the Kolmogorov length scale, efficient and accurate numerical models for the particle-fluid interaction are still missing. Therefore, we here extend the treatment of the particle feedback on the fluid based on the volume-averaged fluid equations (VA simulation) in the previous study of the present authors, by estimating the fluid force correlated with the disturbed flow. We validate the model against interface-resolved simulations using the immersed-boundary method. Simulations of single particles show that the history effect is well captured by the present estimation method based on the disturbed flow. Similarly, the simulation of the flow around a rotating particle demonstrates that the lift force is also well captured by the proposed method. We also consider the interaction between non-negligible size particles and an array of Taylor-Green vortices. For density ratios $ρ_d/ρ_c\geq$ 10, the results show that the particle motion captured by the VA approach is closer to that of the fully-resolved simulations than that obtained with a traditional two-way coupling simulation. The flow disturbance is also well represented by the VA simulation. In particular, it is found that history effects enhance the curvature of the trajectory in vortices and this enhancement increases with the particle size. Furthermore, the flow field generated by a neighboring particle at distances of around ten particle diameters significantly influences particle trajectories. The computational cost of the VA simulation proposed here is considerably lower than that of the interface-resolved simulation.
description: 54 pages, 20 figures
Generation of functional hepatocytes by forward programming with nuclear receptors.
Creators: name: Tomaz, Rute A
name: Zacharis, Ekaterini D
name: Bachinger, Fabian
name: Wurmser, Annabelle
name: Yamamoto, Daniel
name: Petrus-Reurer, Sandra
name: Morell, Carola M
name: Dziedzicka, Dominika
name: Wesley, Brandon T
name: Geti, Imbisaat
name: Segeritz, Charis-Patricia
name: De Brito, Miguel C
name: Chhatriwala, Mariya
name: Ortmann, Daniel
name: Saeb-Parsy, Kourosh
name: Vallier, Ludovic
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Tools and Resources
Stem Cells and Regenerative Medicine
forward programming
hepatocytes
pluripotent stem cells
Human

description: Funder: UK Regenerative Medicine Platform; FundRef: http://dx.doi.org/10.13039/501100019326
description: Funder: Wellcome - MRC Cambridge Stem Cell Institute, University of Cambridge; FundRef: http://dx.doi.org/10.13039/501100021773
description: Funder: Chan Zuckerberg Initiative; FundRef: http://dx.doi.org/10.13039/100014989
description: Production of large quantities of hepatocytes remains a major challenge for a number of clinical applications in the biomedical field. Directed differentiation of human pluripotent stem cells (hPSCs) into hepatocyte-like cells (HLCs) provides an advantageous solution and a number of protocols have been developed for this purpose. However, these methods usually follow different steps of liver development in vitro, which is time consuming and requires complex culture conditions. In addition, HLCs lack the full repertoire of functionalities characterising primary hepatocytes. Here, we explore the interest of forward programming to generate hepatocytes from hPSCs and to bypass these limitations. This approach relies on the overexpression of three hepatocyte nuclear factors (HNF1A, HNF6, and FOXA3) in combination with different nuclear receptors expressed in the adult liver using the OPTi-OX platform. Forward programming allows for the rapid production of hepatocytes (FoP-Heps) with functional characteristics using a simplified process. We also uncovered that the overexpression of nuclear receptors such as RORc can enhance specific functionalities of FoP-Heps thereby validating its role in lipid/glucose metabolism. Together, our results show that forward programming could offer a versatile alternative to direct differentiation for generating hepatocytes in vitro.
Automatic face detection and recognition based on eigenfaces and color
Creators: name: Rohr, Matthias.
Publisher: name: Monash University
Year: 2022

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.
Spin Dynamics and Magnetoelectric Coupling Mechanism of Co4Nb2O9
Creators: name: Deng, Guochu
name: Cao, Yiming
name: Ren, Wei
name: Cao, Shixun
name: Studer, Andrew J.
name: Gauthier, Nicolas
name: Kenzelmann, Michel
name: Davidson, Gene
name: Rule, Kirrily C.
name: Gardner, Jason S.
name: Imperia, Paolo
name: Ulrich, Clemens
name: McIntyre, Garry J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Neutron powder diffraction experiments reveal that Co4Nb2O9 forms a noncollinear in-plane magnetic structure with Co2+ moments lying in the ab plane. The spin-wave excitations of this magnet were measured by using inelastic neutron scattering and soundly simulated by a dynamic model involving nearest and next-nearest neighbour exchange interactions, in-plane anisotropy and the Dzyaloshinskii-Moriya interaction. The in-plane magnetic structure of Co4Nb2O9 is attributed to the large in-plane anisotropy while the noncollinearity of the spin configuration is attributed to the Dzyaloshinskii-Moriya interaction. The high magnetoelectric coupling effect of Co4Nb2O9 in fields can be explained by its special in-plane magnetic structure.
description: 13pages, 3 figures
Vertex connectivity of the power graph of a finite cyclic group
Creators: name: Chattopadhyay, Sriparna
name: Patra, Kamal Lochan
name: Sahoo, Binod Kumar
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C25, 05C40

description: Let $n=p_1^{n_1}p_2^{n_2}\ldots p_r^{n_r}$, where $r,n_1,\ldots, n_r$ are positive integers and $p_1,p_2,\ldots,p_r$ are distinct prime numbers with $p_1
Educating machinima : creating e-training content using electronic game based production methods
Creators: name: Zapart, Tim.
Publisher: name: Monash University
Year: 2022

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.
A framework for the development of multimedia scenario-based training applications
Creators: name: Tootell, Benedict.
Publisher: name: Monash University
Year: 2022

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.
Soundhunter : using mobile agents to track multiple sound sources
Creators: name: Vaile, Stuart J.
Publisher: name: Monash University
Year: 2022

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.
Direct photon cross section and double-helicity measurement at PHENIX
Creators: name: Park, Sanghwa
Publisher: name: Zenodo
Year: 2023
Subjects: ismd23
phenix
p+p
helicity
longitudinal spin asymmetry
direct photon
photon
gluon
polarization
cross section

description: Talk presented at the International Symposium on Multiparticle Dynamics 2023 conference
Simultaneously constraining the astrophysics of reionisation and the epoch of heating with 21CMMC
Creators: name: Greig, Bradley
name: Mesinger, Andrei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The cosmic 21 cm signal is set to revolutionise our understanding of the early Universe, allowing us to probe the 3D temperature and ionisation structure of the intergalactic medium (IGM). It will open a window onto the unseen first galaxies, showing us how their UV and X-ray photons drove the cosmic milestones of the epoch of reionisation (EoR) and epoch of heating (EoH). To facilitate parameter inference from the 21 cm signal, we previously developed 21CMMC: a Monte Carlo Markov Chain sampler of 3D EoR simulations. Here we extend 21CMMC to include simultaneous modelling of the EoH, resulting in a complete Bayesian inference framework for the astrophysics dominating the observable epochs of the cosmic 21 cm signal. We demonstrate that second generation interferometers, the Hydrogen Epoch of Reionisation Array (HERA) and Square Kilometre Array (SKA) will be able to constrain ionising and X-ray source properties of the first galaxies with a fractional precision of order $\sim1$-10 per cent (1$σ$). The ionisation history of the Universe can be constrained to within a few percent. Using our extended framework, we quantify the bias in EoR parameter recovery incurred by the common simplification of a saturated spin temperature in the IGM. Depending on the extent of overlap between the EoR and EoH, the recovered astrophysical parameters can be biased by $\sim3-10σ$.
description: 20 pages, 10 figures, 4 tables. Accepted to MNRAS (matches online version). Movies showing the imprint of the astrophysical parameters on the 21cm signal can be found at http://homepage.sns.it/mesinger/21CMMC.html