cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Über das Konkurrenzverhalten von Dielektrika bei der Mikrowellenerwärmung
Creators: name: Rother, Matthias
Publisher: name: KIT Scientific Publishing
Year: 2010
Subjects: Effizienz
Kakao
Lebensmittel
Leistungsaufnahme
Mikrowellen

description: Die Leistungsaufnahme einer Last in einem Mikrowellenprozess hängt entscheidend davon ab, ob andere Produkte oder auch die Anlage einen Teil der angebotenen Leistung abziehen. Ein solcher Zustand, in dem Produkte und die Anlage um die angebotene Mikrowellenleistung konkurrieren, wird in neuer Definition als Erwärmung unter Konkurrenz bezeichnet. In dieser Arbeit werden die Implikationen solcher Konkurrenzsituationen diskutiert und ein quantitative Lösung zu ihrer Beschreibung angeboten.
Supplementary Material for "The Infinite Index: Information Retrieval on Generative Text-To-Image Models"
Creators: name: Deckers, Niklas
name: Fröbe, Maik
name: Kiesel, Johannes
name: Pandolfo, Gianluca
name: Schröder, Christopher
name: Stein, Benno
name: Potthast, Martin
Publisher: name: Zenodo
Year: 2022

description: Supplementary material for the paper "The Infinite Index: Information Retrieval on Generative Text-To-Image Models"
A novel Bayesian strategy for the identification of spatially-varying material properties and model validation: an application to static elastography
Creators: name: Koutsourelakis, P. S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: The present paper proposes a novel Bayesian, computational strategy in the context of model-based inverse problems in elastostatics. On one hand we attempt to provide probabilistic estimates of the material properties and their spatial variability that account for the various sources of uncertainty. On the other hand we attempt to address the question of model fidelity in relation to the experimental reality and particularly in the context of the material constitutive law adopted. This is especially important in biomedical settings when the inferred material properties will be used to make decisions/diagnoses. We propose an expanded parametrization that enables the quantification of model discrepancies in addition to the constitutive parameters. We propose scalable computational strategies for carrying out inference and learning tasks and demonstrate their effectiveness in numerical examples with noiseless and noisy synthetic data.
description: in International Journal for Numerical Methods in Engineering 2012
Sleep deprivation, alcohol, and driving experience : effects on driving performance across the day
Creators: name: Lenne., Michael Graeme
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.
Some weak limit laws for the diameter of random point sets in bounded regions
Creators: name: Lao, Wei
Publisher: name: KIT Scientific Publishing
Year: 2010
Subjects: geometric extreme value theory
maximum distance
limit distribution
random point set
Poisson approximation

description: This book establishes several weak limit laws for problems in geometric extreme value theory. We find the limit law of the maximum Euclidean distance of i.i.d. points, as the number of points tends to infinity, under certain assumptions on the underlying distribution. One of the methods is also applicable for some other functionals, such as the maximum area or the maximum perimeter of triangles formed by point triplets.
Interference in vehicle-to-vehicle communication networks - analysis, modeling, simulation and assessment
Creators: name: Schmidt-Eisenlohr, Felix
Publisher: name: KIT Scientific Publishing
Year: 2010
Subjects: Wireless communication
Vehicular networks
Capacity
Simulation

description: In wireless vehicular communication networks the periodic transmission of status updates by all vehicles represents a basic service primitive, in particular for safety related applications. Due to the limited communication resources the question raises how much data each node may provide such that the quality of service required by applications can still be guaranteed under realistic interference conditions. Local broadcasts capacity is introduced and analyzed to tackle this open question.
Collapse of a self-gravitating Bose-Einstein condensate with attractive self-interaction
Creators: name: Chavanis, Pierre-Henri
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the collapse of a self-gravitating Bose-Einstein condensate with attractive self-interaction. Equilibrium states in which the gravitational attraction and the attraction due to the self-interaction are counterbalanced by the quantum pressure exist only below a maximum mass $M_{\rm max}=1.012\hbar/\sqrt{Gm|a_s|}$ where $a_s<0$ is the scattering length of the bosons and $m$ is their mass. For $M>M_{\rm max}$ the system is expected to collapse and form a black hole. We study the collapse dynamics by making a Gaussian ansatz for the wave function. We find that the collapse time scales as $(M/M_{\rm max}-1)^{-1/4}$ for $M\rightarrow M_{\rm max}^+$ and as $M^{-1/2}$ for $M\gg M_{\rm max}$. We apply our results to standard axions with mass $m=10^{-4}\, {\rm eV}/c^2$ and scattering length $a_s=-5.8\times 10^{-53}\, {\rm m}$ for which $M_{\rm max}=6.5\times 10^{-14}M_{\odot}$ and $R=3.3\times 10^{-4}\, R_{\odot}$. We confirm our previous claim that bosons with attractive self-interaction, such as standard axions, may form low mass stars but cannot form dark matter halos of relevant mass and size. These mini axions stars could be the constituents of dark matter. They can collapse into mini black holes of mass $\sim 10^{-14}\, M_{\odot}$ in a few hours. In that case, dark matter halos would be made of mini black holes. We also apply our results to ultralight axions with mass $m=1.93\times 10^{-20}\, {\rm eV}/c^2$ and scattering length $a_s=-8.29\times 10^{-60}\, {\rm fm}$ for which $M_{\rm max}=0.39\times 10^6\, M_{\odot}$ and $R=33\, {\rm pc}$. These ultralight axions could cluster into dark matter halos. Axionic dark matter halos with attractive self-interaction can collapse into supermassive black holes of mass $\sim 10^{6}\, M_{\odot}$ in about one million years.
Topological dynamics of Zadeh's extension on the space of upper semi-continuous fuzzy sets
Creators: name: Wu, Xinxing
name: Wang, Xiong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 03E72, 37A25, 54A40, 54C60, 54H20

description: In this paper, some characterizations about transitivity, mildly mixing property, $\mathbf{a}$-transitivity, equicontinuity, uniform rigidity and proximality of Zadeh's extensions restricted on some invariant closed subsets of the space of all upper semi-continuous fuzzy sets with the level-wise metric are obtained. In particular, it is proved that a dynamical system is weakly mixing (resp., mildly mixing, weakly mixing and $\mathbf{a}$-transitive, equicontinuous, uniformly rigid) if and only if the Zadeh's extension is transitive (resp., mildly mixing, $\mathbf{a}$-transitive, equicontinuous, uniformly rigid).
Some acute pharmacological properties of 2-N-Carboxamidinonormianserin (FCC5) and 2-N-Carboxamidonormianserin (FCC13) : two novel analogues of mianserin
Creators: name: Leitch., Ian Matthew
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.
The Kallikerein-kinin system
Creators: name: van Leeuwen-Clappison., Barbara H.
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.
Supplementary Material_Lognormal paper from Skewed distribution of spines is independent of presynaptic transmitter release and synaptic plasticity, and emerges early during adult neurogenesis
Creators: name: Rößler, Nina
name: Jungenitz, Tassilo
name: Sigler, Albrecht
name: Bird, Alexander
name: Mittag, Martin
name: Rhee, Jeong Seop
name: Deller, Thomas
name: Cuntz, Hermann
name: Brose, Nils
name: Schwarzacher, Stephan W.
name: Jedlicka, Peter
Publisher: name: The Royal Society
Year: 2023
Subjects: Neuroscience

description: Includes additional methods and supplementary figures
A highly repeated DNA sequence dispersed through the genome of Lilium speciosum
Creators: name: Leeton., Peter R. J.
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.
Adressbuch der Stadt Zürich und Umgebung [1859]
Creators: name: Hintermeister, D.
Publisher: name: Verlag des Verfassers [Hintermeister]
Year: 1859
Subjects: subject: 330 Wirtschaft
subject: Zürich
subject: Adressbuch

description: Mit fünf Aufstellungen: Personentarif der Schweizerischen Nordostbahn; Personentarif zwischen der Schweizerischen Nordost-Central- & Westbahn und Tarife der St. Galler- und Glattthalbahn; Passagiertaxen der Dampfschiffe auf dem Zürichsee; Passagiertaxen auf dem Wallensee; Passagiertaxen auf dem Linthkanal.
description: Enthält: Übersicht der Wohngebäude nach den Hausnummern mit Angabe der Strassen und Eigentümer in der Stadt Zürich ; Alphabetisches Strassenverzeichnis der Stadt Zürich unter Angabe der Hausnummern ; Alphabetisches Verzeichnis der Bürger und Niedergelassenen der Stadt Zürich, sowie der Handelshäuser der Stadt und des Bezirkes Zürich ; Alphabetische Zusammenstellung der verschiedenen Berufsarten der Stadt und Umgebung mit den Namen der Berufstreibenden, ihrer Wohnungen, Geschäfts- oder Verkaufslokale ; Anzeigen: Wellenberg Kosthaus für erwachsene Arbeiter und Schweizerische Rentenanstalt ; Allgemeiner Geschäftsanzeiger (Diverse Werbeanzeigen).
The convective stability of fully stratified baroclinic discs
Creators: name: Volponi, Francesco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We examine the convective stability of hydrodynamic discs with full stratification in the local approximation and in the presence of thermal diffusion (or relaxation). Various branches of the relevant axisymmetric dispersion relation derived by Urpin (2003) are discussed. We find that when the vertical Richardson number is larger than or equal to the radial one (i.e. $|Ri_z|\geq|Ri_x|$) and wavenumbers are comparable (i.e. $|k_x|\sim|k_z|$) the disc becomes unstable, even in the presence of radial and vertical stratifications with $Ri_x>0$ and $Ri_z>0$. The origin of this resides in an hybrid radial-vertical Richardson number. We propose an equilibrium profile with temperature depending on the radial and vertical coordinates and with $Ri_z>0$ for which this destabilization mechanism occurs. We notice as well that the dispersion relation of the "convective overstability" is the branch of the one here discussed in the limit $|k_z|\gg|k_x|$ (i. e. two-dimensional disc).
description: 11 pages, 5 figures, accepted for publication in MNRAS
Multiplicity density at mid-rapidity in $AA$ collisions: effect of meson cloud
Creators: name: Zakharov, B. G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the influence of the meson cloud of the nucleon on predictions of the Monte Carlo Glauber model for the charged particle multiplicity density at mid-rapidity in $AA$ collisions. We find that for central $AA$ collisions the meson cloud can increase the multiplicity density by $\sim 16-18$\%. The meson-baryon Fock component reduces the required fraction of the binary collisions by a factor of $\sim 2$ for Au+Au collisions at $\sqrt{s}=0.2$ TeV and $\sim 1.5$ for Pb+Pb collisions at $\sqrt{s}=2.76$ TeV.
description: 5 pages, 2 figures
Toroidal vortices as a solution to the dust migration problem
Creators: name: Loren-Aguilar, Pablo
name: Bate, Matthew R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In an earlier letter, we reported that dust settling in protoplanetary discs may lead to a dynamical dust-gas instability that produces global toroidal vortices. In this letter, we investigate the evolution of a dusty protoplanetary disc with two different dust species (1 mm and 50 cm dust grains), under the presence of the instability. We show how toroidal vortices, triggered by the interaction of mm grains with the gas, stop the radial migration of metre-sized dust, potentially offering a natural and efficient solution to the dust migration problem.
description: 5 pages, 3 figures, accepted for publication in MNRAS Letters
Supplementary Material_Lognormal paper from Skewed distribution of spines is independent of presynaptic transmitter release and synaptic plasticity and emerges early during adult neurogenesis
Creators: name: Rößler, Nina
name: Jungenitz, Tassilo
name: Sigler, Albrecht
name: Bird, Alexander
name: Mittag, Martin
name: Rhee, Jeong Seop
name: Deller, Thomas
name: Cuntz, Hermann
name: Brose, Nils
name: Schwarzacher, Stephan W.
name: Jedlicka, Peter
Publisher: name: The Royal Society
Year: 2023
Subjects: Neuroscience

description: Includes additional methods and supplementary figures
Velocity Amplitudes in Global Convection Simulations: The Role of the Prandtl Number and Near-Surface Driving
Creators: name: O'Mara, Bridget
name: Miesch, Mark S.
name: Featherstone, Nicholas A.
name: Augustson, K. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Several lines of evidence suggest that the velocity amplitude in global simulations of solar convection, U, may be systematically over-estimated. Motivated by these recent results, we explore the factors that determine U and we consider how these might scale to solar parameter regimes. To this end, we decrease the thermal diffusivity $κ$ along two paths in parameter space. If the kinematic viscosity $ν$ is decreased proportionally with $κ$ (fixing the Prandtl number $P_r = ν/κ$), we find that U increases but asymptotes toward a constant value, as found by Featherstone & Hindman (2016). However, if $ν$ is held fixed while decreasing $κ$ (increasing $P_r$), we find that U systematically decreases. We attribute this to an enhancement of the thermal content of downflow plumes, which allows them to carry the solar luminosity with slower flow speeds. We contrast this with the case of Rayleigh-Benard convection which is not subject to this luminosity constraint. This dramatic difference in behavior for the two paths in parameter space (fixed $P_r$ or fixed $ν$) persists whether the heat transport by unresolved, near-surface convection is modeled as a thermal conduction or as a fixed flux. The results suggest that if solar convection can operate in a high-$P_r$ regime, then this might effectively limit the velocity amplitude. Small-scale magnetism is a possible source of enhanced viscosity that may serve to achieve this high-$P_r$ regime.
description: 34 Pages, 8 Figures, submitted to a special issue of "Advances in Space Research" on "Solar Dynamo Frontiers"
A pharmacological investigation of noradrenergic mechanisms in the bisected vas deferens preparation from the rat
Creators: name: Leedham., Judith Ann
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.
3D Massive MIMO Systems: Modeling and Performance Analysis
Creators: name: Nadeem, Qurrat-Ul-Ain
name: Kammoun, Abla
name: Debbah, Merouane
name: Alouini, Mohamed-Slim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Multiple-input-multiple-output (MIMO) systems of current LTE releases are capable of adaptation in the azimuth only. Recently, the trend is to enhance system performance by exploiting the channel's degrees of freedom in the elevation, which necessitates the characterization of 3D channels. We present an information-theoretic channel model for MIMO systems that supports the elevation dimension. The model is based on the principle of maximum entropy, which enables us to determine the distribution of the channel matrix consistent with the prior information on the angles. Based on this model, we provide analytical expression for the cumulative density function (CDF) of the mutual information (MI) for systems with a single receive and finite number of transmit antennas in the general signal-to-interference-plus-noise-ratio (SINR) regime. The result is extended to systems with finite receive antennas in the low SINR regime. A Gaussian approximation to the asymptotic behavior of MI distribution is derived for the large number of transmit antennas and paths regime. We corroborate our analysis with simulations that study the performance gains realizable through meticulous selection of the transmit antenna downtilt angles, confirming the potential of elevation beamforming to enhance system performance. The results are directly applicable to the analysis of 5G 3D-Massive MIMO-systems.
description: 14 pages, 8 figures
Kinematic measurements using an infrared sensor
Creators: name: Marinho, F.
name: Paulucci, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The use of an infrared sensor as a new alternative to measure position as a function of time in kinematic experiments was investigated using a microcontroller as data acquisition and control device. These are versatile sensors that offer advantages over the typical ultrasound devices. The setup described in this paper enables students to develop their own experiments promoting opportunities for learning physical concepts such as the different types of forces that can act on a body (gravitational, elastic, drag, etc.) and the resulting types of movements with good sensitivity within the $\rm 4-30~cm$ range. As proof of concept we also present the application of a prototype designed to record the kinematics of mass-spring systems.
description: 15 pages, 10 figures
Disruption of Planetary Orbits Through Evection Resonance with an External Companion: Circumbinary Planets and Multiplanet Systems
Creators: name: Xu, Wenrui
name: Lai, Dong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Planets around binary stars and those in multiplanet systems may experience resonant eccentricity excitation and disruption due to perturbations from a distant stellar companion. This "evection resonance" occurs when the apsidal precession frequency of the planet, driven by the quadrupole associated with the inner binary or the other planets, matches the orbital frequency of the external companion. We develop an analytic theory to study the effects of evection resonance on circumbinary planets and multiplanet systems. We derive the general conditions for effective eccentricity excitation or resonance capture of the planet as the system undergoes long-term evolution. Applying to circumbinary planets, we show that inward planet migration may lead to eccentricity growth due to evection resonance with an external perturber, and planets around shrinking binaries may not survive the resonant eccentricity growth. On the other hand, significant eccentricity excitation in multiplanet systems occurs in limited parameter space of planet and binary semimajor axes, and requires the planetary migration to be sufficiently slow.
description: 15 pages, 16 figures
Crosstalk-insensitive method for simultaneously coupling multiple pairs of resonators
Creators: name: Yang, Chui-Ping
name: Su, Qi-Ping
name: Zheng, Shi-Biao
name: Nori, Franco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a circuit consisting of two or more resonators, the inter-cavity crosstalk is inevitable, which could create some problems, such as degrading the performance of quantum operations and the fidelity of various quantum states. The focus of this work is to propose a crosstalk-insensitive method for simultaneously coupling multiple pairs of resonators, which is important in large-scale quantum information processing and communication in a network consisting of resonators or cavities. In this work, we consider 2N resonators of different frequencies, which are coupled to a three-level quantum system (qutrit). By applying a strong pulse to the coupler qutrit, we show that an effective Hamiltonian can be constructed for simultaneously coupling multiple pairs of resonators.~The main advantage of this proposal is that the effect of inter-resonator crosstalks is greatly suppressed by using resonators of different frequencies. In addition, by employing the qutrit-resonator dispersive interaction, the intermediate higher-energy level of the qutrit is virtually excited and thus decoherence from this level is suppressed. This effective Hamiltonian can be applied to implement quantum operations with photonic qubits distributed in different resonators. As one application of this Hamiltonian, we show how to simultaneously generate multiple EPR pairs of photonic qubits distributed in 2N resonators. Numerical simulations show that it is feasible to prepare two high-fidelity EPR photonic pairs using a setup of four one-dimensional transmission line resonators coupled to a superconducting flux qutrit with current circuit QED technology.
description: 23 pages, 5 figures, accepted by Phys. Rev. A
Regulation of inflammation by endogenous glucocorticoids and MIF
Creators: name: Leech., Michelle
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.
A Convergence Analysis of the Peaceman--Rachford Scheme for Semilinear Evolution Equations
Creators: name: Hansen, Eskil
name: Henningsson, Erik
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65J08, 65M12, 47H06

description: The Peaceman--Rachford scheme is a commonly used splitting method for discretizing semilinear evolution equations, where the vector fields are given by the sum of one linear and one nonlinear dissipative operator. Typical examples of such equations are reaction-diffusion systems and the damped wave equation. In this paper we conduct a convergence analysis for the Peaceman--Rachford scheme in the setting of dissipative evolution equations on Hilbert spaces. We do not assume Lipschitz continuity of the nonlinearity, as previously done in the literature. First or second order convergence is derived, depending on the regularity of the solution, and a shortened proof for $o(1)$-convergence is given when only a mild solution exits. The analysis is also extended to the Lie scheme in a Banach space framework. The convergence results are illustrated by numerical experiments for Caginalp's solidification model and the Gray--Scott pattern formation problem.
Electric-field tunable spin diode FMR in patterned PMN-PT/NiFe structures
Creators: name: Ziętek, Sławomir
name: Ogrodnik, Piotr
name: Skowroński, Witold
name: Stobiecki, Feliks
name: van Dijken, Sebastiaan
name: Barnaś, Józef
name: Stobiecki, Tomasz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Dynamic properties of NiFe thin films on PMN-PT piezoelectric substrate are investigated using the spin-diode method. Ferromagnetic resonance (FMR) spectra of microstrips with varying width are measured as a function of magnetic field and frequency. The FMR frequency is shown to depend on the electric field applied across the substrate, which induces strain in the NiFe layer. Electric field tunability of up to 100 MHz per 1 kV/cm is achieved. An analytical model based on total energy minimization and the LLG equation, with magnetostriction effect taken into account, is developed to explain the measured dynamics. Based on this model, conditions for strong electric-field tunable spin diode FMR in patterned NiFe/PMN-PT structures are derived.
title: Credal Encroachment in a Two-stage Model
Creators: name: Hu, Pengbo
Publisher: name: Georgia State University
Year: 2023

description:
On a traditional, purist, epistemological picture, the epistemic status of mental states and attitudes depends solely on alethic factors. Pragmatic encroachment is the thesis that rejects this picture. Here I defend a particular version of pragmatic encroachment called credal encroachment. Specifically, credal encroachment arises in a plausible model of credence formation. I also argue that this account can respond to some outstanding objections to credal encroachment. Finally, I will close with a discussion of a neighboring but competing account based on similar empirical considerations.
Aurora: um programa de Elementos Finitos feito em Java
Creators: name: De Simone, Arthur Pendragon
Publisher: name: Zenodo
Year: 2022
Subjects: finite elements
java
structural analysis

description: This work presents the development of a two-dimensional structure analysis program using the Finite Element Method (FEM). For this, knowledge in Matrix Analysis of Structures and object-oriented programming in Java was used, which was chosen for being multiplatform and suitable for computational modeling of structures due to its level of abstraction of object-oriented modeling. Given that the resolution model results in a sparse matrix, graph theory and the breadth-first search algorithm were also used to optimize the resolution of the linear system associated with the structure, transforming the sparse stiffness matrix into a band matrix. To validate the program, examples were extracted from the literature, such as the bi-supported beam, the wall beam, the cantilever beam and the simply supported wedge and compared with the program results with the theory extracted from the literature and other reference software. All models analyzed showed convergence, thus validating the scope of this work. Keywords: Structural analysis. Finite elements. Java. Este trabalho apresenta o desenvolvimento de um programa de análise bidimensional de estruturas usando o Método dos Elementos Finitos (MEF). Para tal, foram utilizados os conhecimentos em Análise Matricial de Estruturas e programação orientada a objetos na linguagem Java, que foi escolhida por ser multiplataforma e apropriada a modelagem computacional de estruturas devido ao seu nível de abstração da modelagem orientada a objetos. Dado que o modelo de resolução que resulta em uma matriz esparsa, foi também utilizado a teoria dos grafos e o algoritmo de busca em largura para otimizar a resolução do sistema linear associado à estrutura transformando a matriz de rigidez esparsa em uma matriz banda. Para validar o programa, foram extraídos exemplos da literatura, como a viga biapoiada, a viga parede, a viga em balanço e a cunha simplesmente apoiada e comparados com os resultados do programa com a teoria extraída da literatura e outros softwares de referência. Todos os modelos analisados apresentaram convergência, validando assim o escopo deste trabalho. Palavras-chave: Análise estrutural. Elementos finitos. Java.
Correlation between lithium abundances and ages of solar twin stars
Creators: name: Carlos, Marilia
name: Nissen, Poul E.
name: Melendez, Jorge
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We want to determine the lithium abundances of solar twin stars as a function of stellar age to provide constraints for stellar evolutions models and to investigate whether there is a connection between low Li abundance and the occurrence of planets. For a sample of 21 solar twins observed with the HARPS spectrograph at high spectral resolution (R~115.000) and very high signal-to-noise ratio (600 < S/N < 2400), precise lithium abundances were obtained by spectral synthesis of the LiI 6707.8 A line and compared to stellar ages, masses, and metallicities determined from a spectroscopic analysis of the same set of HARPS spectra. We show that for the large majority of the solar twins there is a strong correlation between lithium abundance and stellar age. As the age increases from 1 to 9 Gyr, the Li abundance decreases by a factor of ~ 50. The relation agrees fairly well with predictions from non-standard stellar evolution models of Li destruction at the bottom of the upper convection zone. Two stars deviate from the relation by having Li abundances enhanced by a factor of ~ 10, which may be due to planet engulfment. On the other hand, we find no indication of a link between planet hosting stars and enhanced lithium depletion.
description: 6 pages and 6 figures. Astronomy & Astrophysics, in press
A Systematic Study of Mid-Infrared Emission from Core-Collapse Supernovae with SPIRITS
Creators: name: Tinyanont, Samaporn
name: Kasliwal, Mansi M.
name: Fox, Ori D.
name: Lau, Ryan
name: Smith, Nathan
name: Williams, Robert
name: Jencson, Jacob
name: Perley, Daniel
name: Dykhoff, Devin
name: Gehrz, Robert
name: Johansson, Joel
name: Van Dyk, Schuyler D.
name: Masci, Frank
name: Cody, Ann Marie
name: Prince, Tom
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a systematic study of mid-infrared (mid-IR) emission from 141 nearby supernovae (SNe) observed with the InfraRed Array Camera (IRAC) on Spitzer.These SNe reside in one of the 190 galaxies within 20 Mpc drawn from the ongoing SPIRITS program. We detect 8 Type Ia SNe and 36 core-collapse SNe. All Type I SNe become undetectable within 3 years of explosion. About 22$\pm$11% of Type II SNe continue to be detected at late-times. Dust luminosity, temperature, and a lower liit on mass are obtained by fitting the SED using photometry with IRAC bands 1 and 2. The mass estimate does not distinguish between pre-existing and newly produced dust. We observe warm dust masses between $10^{-2}$ and $10^{-6}$ $\rm M_{\odot}$ and dust temperatures from 200 K to 1280 K.We present detailed case studies of two extreme Type II-P SNe: SN 2011ja and 2014bi. SN 2011ja was over-luminous ([4.5] = -15.6 mag) at 900 days post-explosion accompanied by the growing dust mass. This suggests either an episode of dust formation or an intensifying CSM interactions heating up pre-existing dust. SN 2014bi showed a factor of 10 decrease in dust mass over one month suggesting either an episode of dust destruction or a fading source of dust heating. A rebrightening of the Type Ib SN 2014C is observed and attributed to CSM interactions. This observation adds to a small number of stripped-envelope SNe that have mid-IR excess. The observations suggest that the CSM shell around SN 2014C is originated from an LBV-like eruption roughly 100 years before the explosion. We also report detections of SN1974E, 1979C, 1980K, 1986J, and 1993J detected more than 20 years post-explosion. The number of outlying SNe identified in this work demonstrates the power of late time mid-IR observations of a large sample of SNe to identify events with unusual evolution.
description: Submitted to ApJ. 15 pages, 8 figures, 3 tables
A Study on the Expanding Universe Based on a Model of the Time Variation of its Matter Content in the Framework of Brans-Dicke Theory
Creators: name: Roy, Sudipto
name: Laha, Dibyajyoti
name: Sangma, Argho Aranya
name: Pal, Indrani
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A theoretical model of cosmic expansion has been formulated on an assumption of inter-conversion of matter and dark energy, in the framework of Brans-Dicke theory. An empirical scale factor has been used, which generates a signature flip of the deceleration parameter with time. To account for the non-conservation of matter, a function of time f(t) is incorporated into the equation representing the density of matter. Its value at any instant of time is proportional to the matter content of the universe. The functional form of f(t) has been determined from the field equations by using an empirical scalar field parameter expressed in terms of the scale factor. It is found to decrease with time almost monotonically, implying a conversion of matter into dark energy. Using this function f(t), the time variation of the density of matter has been determined and also the expressions regarding the proportions of matter and dark energy of the universe have been formulated. Time variation of gravitational constant, its fractional rate of change and the Brans-Dicke dimensionless parameter has been analyzed. The dependence of Brans-Dicke parameter upon the scalar field has been determined. The present study enables us to correlate the change of matter content with the change of deceleration parameter and gravitational constant without using any specific mechanism of interaction between matter and scalar field.
description: 14 pages, 8 figures
The effect of HIV-1 infection on Fcγ receptor signalling and function
Creators: name: Leeansyah., Edwin
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.
Small-body deflection techniques using spacecraft: techniques in simulating the fate of ejecta
Creators: name: Schwartz, Stephen R.
name: Yu, Yang
name: Michel, Patrick
name: Jutzi, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We define a set of procedures to numerically study the fate of ejecta produced by the impact of an artificial projectile with the aim of deflecting an asteroid. Here we develop a simplified, idealized model of impact conditions that can be adapted to fit the details of specific deflection-test scenarios, such as what is being proposed for the AIDA project. Ongoing studies based upon the methodology described here can be used to inform observational strategies and safety conditions for an observing spacecraft. To account for ejecta evolution, the numerical strategies we are employing are varied and include a large N-Body component, a smoothed-particle hydrodynamics (SPH) component, and an application of impactor scaling laws. Simulations that use SPH-derived initial conditions show high-speed ejecta escaping at low angles of inclination, and very slowly moving ejecta lofting off the surface at higher inclination angles, some of which re-impacts the small-body surface. We are currently investigating the realism of this and other models' behaviors. Next steps will include the addition of solar perturbations to the model and applying the protocol developed here directly to specific potential mission concepts such as the proposed AIDA scenario.
description: 19 pages, 11 figures, accepted for publication in Advances in Space Research, Special Issue: Asteroids & Space Debris
A numerical investigation of coorbital stability and libration in three dimensions
Creators: name: Morais, Maria Helena M.
name: Namouni, Fathi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Motivated by the dynamics of resonance capture, we study numerically the coorbital resonance for inclination180 >=I>=0 in the circular restricted three-body problem. We examine the similarities and differences between planar and three dimensional coorbital resonance capture and seek their origin in the stability of coorbital motion at arbitrary inclination. After we present stability maps of the planar prograde and retrograde coorbital resonances, we characterize the new coorbital modes in three dimensions. We see that retrograde mode I (R1) and mode II (R2) persist as we change the relative inclination, while retrograde mode III (R3) seems to exist only in the planar problem. A new coorbital mode (R4) appears in 3D which is a retrograde analogue to an horseshoe-orbit. The Kozai-Lidov resonance is active for retrograde orbits as well as prograde orbits and plays a key role in coorbital resonance capture. Stable coorbital modes exist at all inclinations, including retrograde and polar obits. This result confirms the robustness the coorbital resonance at large inclination and encourages the search for retrograde coorbital companions of the solar system's planets.
description: accepted for publication in Celestial Mechanics and Dynamical Astronomy
Quantum nonlocality, and the end of classical space-time
Creators: name: Banerjee, Shreya
name: Bera, Sayantani
name: Singh, T. P.
Publisher: name: arXiv
Year: 2016
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: Quantum non-local correlations and the acausal, spooky action at a distance suggest a discord between quantum theory and special relativity. We propose a resolution for this discord by first observing that there is a problem of time in quantum theory. There should exist a reformulation of quantum theory which does not refer to classical time. Such a reformulation is obtained by suggesting that space-time is fundamentally non-commutative. Quantum theory without classical time is the equilibrium statistical thermodynamics of the underlying non-commutative relativity. Stochastic fluctuations about equilibrium give rise to the classical limit and ordinary space-time geometry. However, measurement on an entangled state can be correctly described only in the underlying non-commutative space-time, where there is no causality violation, nor a spooky action at a distance.
description: 6 pages. Honorable mention in GRF Essay Contest 2016
Phase transitions in the Hubbard model for the bismuth nickelate
Creators: name: Kojima, Shoya
name: Nasu, Joji
name: Koga, Akihisa
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study low temperature properties of the Hubbard model for the bismuth nickelate, where degenerate orbitals in the nickel ions and a single orbital in the bismuth ions are taken into account, combining dynamical mean-field theory with the continuous-time quantum Monte Carlo method. We discuss the effect of the attractive interactions to mimic the valence skipping phenomenon in the bismuth ions. We demonstrate how the charge and magnetically ordered states are stable against thermal fluctuations. It is furthermore clarified that the ferromagnetically ordered and orbital ordered states are stabilized due to the presence of the orbital degeneracy at low temperatures. The crossover between metallic and insulating states is also discussed.
description: 6 pages, 7 figures
Non-Thermal Electron Energization from Magnetic Reconnection in Laser-Driven Plasmas
Creators: name: Totorica, Samuel
name: Abel, Tom
name: Fiuza, Frederico
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The possibility of studying non-thermal electron energization in laser-driven plasma experiments of magnetic reconnection is studied using two- and three-dimensional particle-in-cell simulations. It is demonstrated that non-thermal electrons with energies more than an order of magnitude larger than the initial thermal energy can be produced in plasma conditions currently accessible in the laboratory. Electrons are accelerated by the reconnection electric field, being injected at varied distances from the X-points, and in some cases trapped in plasmoids, before escaping the finite-sized system. Trapped electrons can be further energized by the electric field arising from the motion of the plasmoid. This acceleration gives rise to a non-thermal electron component that resembles a power-law spectrum, containing up to ~ 8% of the initial energy of the interacting electrons and ~ 24 % of the initial magnetic energy. Estimates of the maximum electron energy and of the plasma conditions required to observe suprathermal electron acceleration are provided, paving the way for a new platform for the experimental study of particle acceleration induced by reconnection.
description: 14 pages, 3 figures. Accepted for publication in Physical Review Letters
Evidence for a correlation between mass accretion rates onto young stars and the mass of their protoplanetary disks
Creators: name: Manara, C. F.
name: Rosotti, G.
name: Testi, L.
name: Natta, A.
name: Alcalá, J. M.
name: Williams, J. P.
name: Ansdell, M.
name: Miotello, A.
name: van der Marel, N.
name: Tazzari, M.
name: Carpenter, J.
name: Guidi, G.
name: Mathews, G. S.
name: Oliveira, I.
name: Prusti, T.
name: van Dishoeck, E. F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A relation between the mass accretion rate onto the central young star and the mass of the surrounding protoplanetary disk has long been theoretically predicted and observationally sought. For the first time, we have accurately and homogeneously determined the photospheric parameters, mass accretion rate, and disk mass for an essentially complete sample of young stars with disks in the Lupus clouds. Our work combines the results of surveys conducted with VLT/X-Shooter and ALMA. With this dataset we are able to test a basic prediction of viscous accretion theory, the existence of a linear relation between the mass accretion rate onto the central star and the total disk mass. We find a correlation between the mass accretion rate and the disk dust mass, with a ratio that is roughly consistent with the expected viscous timescale when assuming an interstellar medium (ISM) gas-to-dust ratio. This confirms that mass accretion rates are related to the properties of the outer disk. We find no correlation between mass accretion rates and the disk mass measured by CO isotopologues emission lines, possibly owing to the small number of measured disk gas masses. This suggests that the mm-sized dust mass better traces the total disk mass and that masses derived from CO may be underestimated, at least in some cases.
description: Accepted in Astronomy & Astrophysics letters, language edited version
Robust Picosecond writing of a Layered Antiferromagnet by Staggered Spin-Orbit-Fields
Creators: name: Roy, P. E.
name: Otxoa, R. M.
name: Wunderlich, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Ultrafast electrical switching by current-induced staggered spin-orbit fields, with minimal risk of overshoot, is shown in layered easy-plane antiferromagnets with basal-plane biaxial anisotropy. The reliable switching is due to the field-like torque, relaxing stringent requirements with respect to precision in the time-duration of the excitation pulse. We investigate the switching characteristics as a function of the spin-orbit field strength, pulse duration, pulse rise and fall time and damping by atomistic spin dynamics simulations and an effective equation of motion for the antiferromagnetic order-parameter. The condition, determining the critical spin-orbit field strength for switching is determined and we go on to show that robust picosecond writing is possible at feasible current magnitudes.
A full space-time convergence order analysis of operator splittings for linear dissipative evolution equations
Creators: name: Hansen, Eskil
name: Henningsson, Erik
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65J08, 65M12, 65M60

description: The Douglas--Rachford and Peaceman--Rachford splitting methods are common choices for temporal discretizations of evolution equations. In this paper we combine these methods with spatial discretizations fulfilling some easily verifiable criteria. In the setting of linear dissipative evolution equations we prove optimal convergence orders, simultaneously in time and space. We apply our abstract results to dimension splitting of a 2D diffusion problem, where a finite element method is used for spatial discretization. To conclude, the convergence results are illustrated with numerical experiments.
Novel translocated effectors of Enteropathogenic Escherichia coli
Creators: name: Lee., Sau Fung
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.
Stochastic Levy Differential Operators and Yang-Mills Equations
Creators: name: Volkov, Boris O.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70S15, 81S25

description: The relationship between the Yang-Mills equations and the stochastic analogue of Levy differential operators is studied. The value of the stochastic Levy Laplacian is found by means of Cesaro averaging of directional derivatives on the stochastic parallel transport. It is shown that the Yang-Mills equations and the Levy-Laplace equation for such Laplacian are not equivalent as in the deterministic case. An equation equivalent to the Yang-Mills equations is obtained. The equation contains the stochastic Levy divergence. It is proved that the Yang-Mills action functional can be represented as an infinite-dimensional analogue of the Direchlet functional of chiral field. This analogue is also derived using Cesaro averaging.