cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Small-scale deformation behaviour of the AlCoCrFeNi2.1 eutectic high entropy alloy
Creators: name: Singh, Shailesh Kumar
name: Kumar, Govind
name: Babu, Pokula Narendra
name: Pal, Snehanshu
name: Vashistha, Saurabh
name: Azam, M. S.
name: Dixit, Saurabh
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology

description: Novel methods to probe and evaluate the mechanical properties of High entropy alloy are gaining popularity to accelerate the development of new material for structural application and for establishing the physics-based mechanical property models. Nanoindentation techniques are predominantly suitable for evaluating the properties of materials in which deformation volumes can be cautiously controlled, and indentation can be applied to probe the properties of specific phases or features present within the microstructure. The current investigation is based on the plastic deformation response of Eutectic High Entropy Alloy, AlCoCrFeNi2.1, using experimental and computational approaches. In this paper, the plastic deformation of eutectic high entropy alloy AlCoCrFeNi2.1 is investigated using nanoindentation over a broad range of strain rates at room temperature to probe the mechanical properties of Eutectic High Entropy Alloy, AlCoCrFeNi2.1 and also to understand its elasto-plastic behaviour of BCC and FCC phase present in the alloy. In order to capture the deformation mechanism of material under the tip of the nano-indenter as well as to predict the load variation with depth, molecular dynamic simulation is performed. A characteristic load-depth curve has also been generated from the developed model, which is in good agreement with the experimental one. These findings will lead to understanding the phase-specific contribution to bulk mechanical response of multicomponent alloys and aid in designing structural materials with high fracture toughness.
The star-triangle relation, lens partition function, and hypergeometric sum/integrals
Creators: name: Gahramanov, Ilmar
name: Kels, Andrew P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The aim of the present paper is to consider the hyperbolic limit of an elliptic hypergeometric sum/integral identity, and associated lattice model of statistical mechanics previously obtained by the second author. The hyperbolic sum/integral identity obtained from this limit, has two important physical applications in the context of the so-called gauge/YBE correspondence. For statistical mechanics, this identity is equivalent to a new solution of the star-triangle relation form of the Yang-Baxter equation, that directly generalises the Faddeev-Volkov models to the case of discrete and continuous spin variables. On the gauge theory side, this identity represents the duality of lens ($S_b^3/\mathbb{Z}_r$) partition functions, for certain three-dimensional $\mathcal N = 2$ supersymmetric gauge theories.
description: 42 pages, 4 figures
Site management at Musawwarat es-Sufra 2014/15: concepts, measures and perspectives
Creators: name: Näser, Claudia
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2022

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 26 (2015): Der Antike Sudan
Synchronization of electrically coupled stochastic magnetic oscillators induced by thermal and electrical noise
Creators: name: Mizrahi, A.
name: Locatelli, N.
name: Grollier, J.
name: Querlioz, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Superparamagnetic tunnel junctions are nanostructures that auto-oscillate stochastically under the effect of thermal noise. Recent works showed that despite their stochasticity, such junctions possess a capability to synchronize to subthreshold voltage drives, in a way that can be enhanced or controlled by adding noise. In this work, we investigate a system composed of two electrically coupled junctions, connected in series to a periodic voltage source. We make use of numerical simulations and of an analytical model to demonstrate that both junctions can be phase-locked to the drive, in phase or in anti-phase. This synchronization phenomenon can be controlled by both thermal and electrical noises, although the two types of noises induce qualitatively different behaviors. Namely, thermal noise can stabilize a regime where one junction is phase-locked to the drive voltage while the other is blocked in one state. On the contrary, electrical noise causes the junctions to have highly correlated behaviors and thus cannot induce the latter. These results open the way for the design of superparamagnetic tunnel junctions that can perform computation through synchronization, and which harvest the largest part of their energy consumption from thermal noise.
Übersichtskarte
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2022

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 26 (2015): Der Antike Sudan
HiPERCAM: A high-speed, quintuple-beam CCD camera for the study of rapid variability in the Universe
Creators: name: Dhillon, V. S.
name: Marsh, T. R.
name: Bezawada, N.
name: Black, M.
name: Dixon, S.
name: Gamble, T.
name: Henry, D.
name: Kerry, P.
name: Littlefair, S. P.
name: Lunney, D. W.
name: Morris, T.
name: Osborn, J.
name: Wilson, R. W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: HiPERCAM is a high-speed camera for the study of rapid variability in the Universe. The project is funded by a 3.5MEuro European Research Council Advanced Grant. HiPERCAM builds on the success of our previous instrument, ULTRACAM, with very significant improvements in performance thanks to the use of the latest technologies. HiPERCAM will use 4 dichroic beamsplitters to image simultaneously in 5 optical channels covering the u'g'r'i'z' bands. Frame rates of over 1000 per second will be achievable using an ESO CCD controller (NGC), with every frame GPS timestamped. The detectors are custom-made, frame-transfer CCDs from e2v, with 4 low-noise (2.5e-) outputs, mounted in small thermoelectrically-cooled heads operated at 180 K, resulting in virtually no dark current. The two reddest CCDs will be deep-depletion devices with anti-etaloning, providing high quantum efficiencies across the red part of the spectrum with no fringing. The instrument will also incorporate scintillation noise correction via the conjugate-plane photometry technique. The opto-mechanical chassis will make use of additive manufacturing techniques in metal to make a light-weight, rigid and temperature-invariant structure. First light is expected on the 4.2m William Herschel Telescope on La Palma in 2017 (on which the field of view will be 10' with a 0.3"/pixel scale), with subsequent use planned on the 10.4m Gran Telescopio Canarias on La Palma (on which the field of view will be 4' with a 0.11"/pixel scale) and the 3.5m New Technology Telescope in Chile.
description: 9 pages, 8 figures, 1 table, SPIE Astronomical Telescopes and Instrumentation, Edinburgh (26 June - 1 July, 2016)
Measurement of CIB power spectra over large sky areas from Planck HFI maps
Creators: name: Mak, Daisy S. Y.
name: Challinor, Anthony
name: Efstathiou, George
name: Lagache, Guilaine
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present new measurements of the power spectra of the cosmic infrared background (CIB) anisotropies using the Planck 2015 full-mission HFI data at 353, 545, and 857 GHz over 20000 square degrees. We use techniques similar to those applied for the cosmological analysis of Planck, subtracting dust emission at the power spectrum level. Our analysis gives stable solutions for the CIB power spectra with increasing sky coverage up to about 50% of the sky. These spectra agree well with Hi cleaned spectra from Planck measured on much smaller areas of sky with low Galactic dust emission. At 545 and 857 GHz our CIB spectra agree well with those measured from Herschel data. We find that the CIB spectra at l > 500 are well fitted by a power-law model for the clustered CIB, with a shallow index γ^cib = 0.53\pm0.02. This is consistent with the CIB results at 217 GHz from the cosmological parameter analysis of Planck. We show that a linear combination of the 545 and 857 GHz Planck maps is dominated by CIB fluctuations at multipoles l > 300.
description: 38 pages, 25 figures, submitted to MNRAS
Flow around oscillating circular cylinders
Creators: name: Nazarinia., Mehdi
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.
Inhaltsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2022

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 26 (2015): Der Antike Sudan
Observation and analysis of the new W-type W UMa eclipsing binary VSX J053024.8+842243
Creators: name: Boyd, D. R. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using multicolour photometry we have confirmed the binary nature of the new W-type W UMa eclipsing binary VSX J053024.8+842243 and established its primary eclipse ephemeris to be HJD = 2455924.38150(26) + 0.4322929(1) * E. Using the light curve modelling code PHOEBE and published data on the evolution of W-type contact binaries we found the primary and secondary components to have masses 0.50 Msun and 1.44 Msun, radii 0.87 Rsun and 1.42 Rsun, luminosities 0.98 Lsun and 1.91 Lsun, temperatures 6145 K and 5702 K and binary orbit inclination 59.4°. We found the distance to the binary to be 511 parsec, its E(B-V) colour excess 0.04 and its intrinsic (B-V) colour index 0.62. A low resolution spectrum corrected for interstellar reddening confirmed its spectral type as G2V.
description: 6 pages, 10 figures, accepted for publication in Journal of the British Astronomical Association
Interview with Joanna Clark
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: Clark, Joanna
J2CP
Information
AEGIS
Trans woman
Activism
ACLU
ID
Prison
Community
Military
Funding
Education
Online
Website
HIV/AIDS

description: Joanna talks about her family and military histories, her groundbreaking work in ID legislation, J2CP, her success with the AEGIS website, and her concerns for the future. Narrator Name: Joanna Clark. Interviewer Name: Evan Taylor. Pronouns: She. Other Names or Pronouns: Sister Mary Elizabeth; Joanna M. Clark.
Qualitative comparisons of experimental results on deterministic freak wave generation based on modulational instability
Creators: name: Karjanto, N.
name: van Groesen, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76B15, 76-05, 74J15, 74J30, 35Q55

description: A number of qualitative comparisons of experimental results on unidirectional freak wave generation in a hydrodynamic laboratory are presented in this paper. A nonlinear dispersive type of wave equation, the nonlinear Schrödinger equation, is chosen as the theoretical model. A family of exact solutions of this equation the so-called Soliton on Finite Background describing modulational instability phenomenon is implemented in the experiments. It is observed that all experimental results show an amplitude increase according to the phenomenon. Both the carrier wave frequency and the modulation period are preserved during the wave propagation. As predicted by the theoretical model, a phase singularity is also observed in the experiments. Due to frequency downshift phenomenon, the experimental signal and spectrum lose their symmetric property. Another qualitative comparison indicates that the Wessel curves for the experimental results are the perturbed version of the theoretical ones.
description: 10 pages, 3 figures, PACS 47.35.Bb, 04.30.Db, 04.30.Nk, 91.30.Fn, 05.45.Yv, 92.05.Bc
Parity Violation as a Possible Indication of a Pre-spatial Order Underlying the Standard Model
Creators: name: Chiatti, Leonardo
Publisher: name: figshare
Year: 2023
Subjects: Particle physics
Quantum physics not elsewhere classified

description: A codification of the internal degrees of freedom of the elementary fermions of the Standard Model is proposed in terms of overlapped triads of semiaxes in a three-dimensional Euclidean pre-space. The common orientation of these triads and the common length of their semiaxes in turn encode the fermion position in spacetime. The connection between the pre-spatial description of the fermion and its quantum description adopted by the Standard Model is established through a one-to-one correspondence between configurations of the system of triads and positional eigenstates of the fermion. The effect of the discrete symmetries C, P, T on triadic configurations in pre-space is discussed, and it is shown that the connection between the chirality of triads and ordinary space provides an intuitive explanation of the violation of parity in the weak interactions and of its conservation in the strong interactions.
Interview with Lynn Conway
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: Conway, Lynn
Silicon chip
Engineering
Michael Bailey
Facial feminization Surgery
Activism
Academia
Harry Benjamin
IBM
STEM
Internet
Blog
Technology
Website

description: Lynn talks about her life history from her 1968 firing from IBM, to her outing and activism in the early 2000's, as well as her enormously successful online website and organizing. Narrator Name: Lynn Conway. Interviewer Name: Evan Taylor. Pronouns: She.
Thermal entanglement and sharp specific-heat peak in an exactly solved spin-1/2 Ising-Heisenberg ladder with alternating Ising and Heisenberg inter-leg couplings
Creators: name: Rojas, Onofre
name: Strečka, J.
name: de Souza, S. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The spin-1/2 Ising-Heisenberg two-leg ladder accounting for alternating Ising and Heisenberg inter-leg couplings in addition to the Ising intra-leg coupling is rigorously mapped onto to a mixed spin-(3/2,1/2) Ising-Heisenberg diamond chain with the nodal Ising spins $S=3/2$ and the interstitial spin-1/2 Heisenberg dimers. The latter effective model with higher-order interactions between the nodal and interstitial spins is subsequently exactly solved within the transfer-matrix method. The model under investigation exhibits five different ground states: ferromagnetic, antiferromagnetic, superantiferromagnetic and two types of frustrated ground states with a non-zero residual entropy. A detailed study of thermodynamic properties reveals an anomalous specific-heat peak at low enough temperatures, which is strongly reminiscent because of its extraordinary height and sharpness to an anomaly accompanying a phase transition. It is convincingly evidenced, however, that the anomalous peak in the specific heat is finite and it comes from vigorous thermal excitations from a two-fold degenerate ground state towards a macroscopically degenerate excited state. Thermal entanglement between the nearest-neighbor Heisenberg spins is also comprehensively explored by taking advantage of the concurrence. The threshold temperature delimiting a boundary between the entangled and disentangled parameter space may show presence of a peculiar temperature reentrance.
description: 9 pages, 9 figures
Penambahan emosi menggunakan metode manipulasi prosodi untuk sistem text to speech bahasa Indonesia
Creators: name: Prini, Salita Ulitia
name: Prihatmanto, Ary Setijadi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences
subject: I.2.7; H.5.2

description: Adding an emotions using prosody manipulation method for Indonesian text to speech system. Text To Speech (TTS) is a system that can convert text in one language into speech, accordance with the reading of the text in the language used. The focus of this research is a natural sounding concept, the make "humanize" for the pronunciation of voice synthesis system Text To Speech. Humans have emotions / intonation that may affect the sound produced. The main requirement for the system used Text To Speech in this research is eSpeak, the database MBROLA using id1, Human Speech Corpus database from a website that summarizes the words with the highest frequency (Most Common Words) used in a country. And there are 3 types of emotional / intonation designed base. There is a happy, angry and sad emotion. Method for develop the emotional filter is manipulate the relevant features of prosody (especially pitch and duration value) using a predetermined rate factor that has been established by analyzing the differences between the standard output Text To Speech and voice recording with emotional prosody / a particular intonation. The test results for the perception tests of Human Speech Corpus for happy emotion is 95 %, 96.25 % for angry emotion and 98.75 % for sad emotions. For perception test system carried by intelligibility and naturalness test. Intelligibility test for the accuracy of sound with the original sentence is 93.3%, and for clarity rate for each sentence is 62.8%. For naturalness, accuracy emotional election amounted to 75.6 % for happy emotion, 73.3 % for angry emotion, and 60 % for sad emotions. ----- Text To Speech (TTS) merupakan suatu sistem yang dapat mengonversi teks dalam format suatu bahasa menjadi ucapan sesuai dengan pembacaan teks dalam bahasa yang digunakan.
description: Keywords: Text To Speech; eSpeak; MBROLA; Human Speech Corpus; emotion; intonation; prosody manipulation; emosi; intonasi; manipulasi prosodi
Variability of pavement material parameters under repeated loading
Creators: name: Nataatmadja., Andreas
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.
SIS Epidemic Spreading with Correlated Heterogeneous Infection Rates
Creators: name: Qu, Bo
name: Wang, Huijuan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The epidemic spreading has been widely studied when each node may get infected by an infected neighbor with the same rate. However, the infection rate between a pair of nodes is usually heterogeneous and even correlated with their nodal degrees in the contact network. We aim to understand how such correlated heterogeneous infection rates influence the spreading on different network topologies. Motivated by real-world datasets, we propose a correlated heterogeneous Susceptible-Infected-Susceptible model which assumes that the infection rate $β_{ij}(=β_{ji})$ between node $i$ and $j$ is correlated with the degree of the two end nodes: $β_{ij}=c(d_id_j)^α$, where $α$ indicates the strength of the correlation and $c$ is selected so that the average infection rate is $1$. In order to understand the effect of such correlation on epidemic spreading, we consider as well the corresponding uncorrected but still heterogeneous infection rate scenario as a reference, where the original correlated infection rates in our CSIS model are shuffled and reallocated to the links of the same network topology. We compare these two scenarios in the average fraction of infected nodes in the metastable state on Erd{ö}s-R{é}nyi (ER) and scale-free (SF) networks with a similar average degree. Through the continuous-time simulations, we find that, when the recovery rate is small, the negative correlation is more likely to help the epidemic spread and the positive correlation prohibit the spreading; as the recovery rate increases to be larger than a critical value, the positive but not negative correlation tends to help the spreading. Our findings are further analytically proved in a wheel network (one central node connects with each of the nodes in a ring) and validated on real-world networks with correlated heterogeneous interaction frequencies.
Hard X-rays as pump and probe of atomic motion in oxide glasses
Creators: name: Ruta, B.
name: Zontone, F.
name: Chushkin, Y.
name: Baldi, G.
name: Pintori, G.
name: Monaco, G.
name: Rufflé, B.
name: Kob, W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Nowadays powerful X-ray sources like synchrotrons and free-electron lasers are considered as ultimate tools for probing microscopic properties in materials. However, the correct interpretation of such experiments requires a good understanding on how the beam affects the properties of the sample, knowledge that is currently lacking for intense X-rays. Here we use X-ray photon correlation spectroscopy to probe static and dynamic properties of oxide and metallic glasses. We find that although the structure does not depend on the flux, strong fluxes do induce a non-trivial microscopic motion in oxide glasses, whereas no such dependence is found for metallic glasses. These results show that high fluxes can alter dynamical properties in hard materials, an effect that needs to be considered in the analysis of X-ray data but which also gives novel possibilities to study materials properties since the beam can not only be used to probe the dynamics but also to pump it.
Interview with Jude Patton
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: Patton, Jude
Activism
Family
Healthcare
Community
J2CP
WPATH
Trans man
Stanford
HBIGDA
Information

description: Jude talks about generational differences in trans communities and activism, his ongoing and extensive work on knowledge gathering and dissemination, and being an early influence on the board of WPATH. Narrator Name: Jude Patton. Interviewer Name: Evan Taylor. Pronouns: He.
Generation Z trifft auf den Arbeitsmarkt: Herausforderungen im Übergang von der Sekundarstufe in die Berufswelt – eine sozialarbeiterische Perspektive
Creators: name: Magron, Nicole
Publisher: name: Zenodo
Year: 2023

description: Die Arbeitswelt unterliegt einem stetigen Wandel. Diverse Transformationsprozesse beeinflussen den Arbeitsmarkt und stellen Arbeitgebende wie auch Arbeitnehmende vor unterschiedliche Herausforderungen. Davon betroffen ist auch die Generation Z, welche zurzeit an der Schwelle zum Berufseintritt steht. Mit ihr kommen neue Werte und Vorstellungen auf den Arbeitsmarkt, was ebenfalls Potenzial für Veränderungen bedeuten kann. Für die Jugendlichen, welche am Übergang von der Schule zum Beruf – von der Sekundarschule in die Berufsausbildung – stehen, bedeutet dies sowohl Chancen als auch Herausforderungen. Die Entwicklungsphase der Adoleszenz beinhaltet diverse Aufgaben; die Berufsorientierung ist eine von vielen. Misslingt der Einstieg in eine Ausbildung, kann dies negative Folgen für den weiteren Lebenslauf der Jugendlichen haben. So sind Menschen ohne Ausbildung verstärkt vom Risiko betroffen, von der Sozialhilfe abhängig zu werden. Die vorliegende Arbeit baut deshalb auf folgender Hauptfrage auf: «Wie kann der Generation Z nach der Sekundarstufe in der aktuellen Arbeitsmarktsituation der Einstieg in die Berufswelt gelingen und wie kann die Soziale Arbeit unterstützend wirken?». In der vorliegenden Bachelorarbeit wird der Handlungsbedarf in den Bereichen der Sozialen Arbeit in der Übergangsbegleitung und der Unternehmensentwicklung sowie der Sozialarbeitspolitik aufgezeigt. Es wird gefordert, dass die Soziale Arbeit in den vorhandenen und neuen Gebieten weiterentwickelt und etabliert wird. Im Bereich der Politik müssen Sozialarbeitende gemäss dem politischen Mandat aktiv werden und die Interessen ihrer Adressatinnen und Adressaten vertreten.
description: + Code Diss LU: hslusa basa + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialarbeit, 2023 + NL-Code: NLLUHSA202309
The magnetic precursor of the pressure-induced superconductivity in Fe-ladder compound
Creators: name: Chi, Songxue
name: Uwatoko, Yoshiya
name: Cao, Huibo
name: Hirata, Yasuyuki
name: Hashizume, Kazuki
name: Aoyama, Takuya
name: Ohgushi, Kenya
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The pressure effects on the antiferromagentic orders in iron-based ladder compounds CsFe$_2$Se$_3$ and BaFe$_2$S$_3$ have been studied using neutron diffraction. With identical crystal structure and similar magnetic structures, the two compounds exhibit highly contrasting magnetic behaviors under moderate external pressures. In CsFe$_2$Se$_3$ the ladders are brought much closer to each other by pressure, but the stripe-type magnetic order shows no observable change. In contrast, the stripe order in BaFe$_2$S$_3$, undergoes a quantum phase transition where an abrupt increase of N$\acute{e}$el temperature by more than 50$\%$ occurs at about 1 GPa, accompanied by a jump in the ordered moment. With its spin structure unchanged, BaFe$_2$S$_3$ enters an enhanced magnetic phase that bears the characteristics of an orbital selective Mott phase, which is the true neighbor of superconductivity emerging at higher pressures.
description: 5 pages, 4 figures, 1 table Accepted for publication on Physical Review Letters
Hydrogen in hot subdwarfs formed by double helium white dwarf mergers
Creators: name: Hall, Philip D.
name: Jeffery, C. Simon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Isolated hot subdwarfs might be formed by the merging of two helium-core white dwarfs. Before merging, helium-core white dwarfs have hydrogen-rich envelopes and some of this hydrogen may survive the merger. We calculate the mass of hydrogen that is present at the start of such mergers and, with the assumption that hydrogen is mixed throughout the disrupted white dwarf in the merger process, estimate how much can survive. We find a hydrogen mass of up to about $2 \times 10^{-3}\,\mathrm{M}_{\odot}$ in merger remnants. We make model merger remnants that include the hydrogen mass appropriate to their total mass and compare their atmospheric parameters with a sample of apparently isolated hot subdwarfs, hydrogen-rich sdBs. The majority of these stars can be explained as the remnants of double helium white dwarf mergers.
description: Published in MNRAS. 13 pages, 5 figures
Starspot signature on the light curve: Learning about the latitudinal distribution of spots
Creators: name: Santos, A. R. G.
name: Cunha, M. S.
name: Avelino, P. P.
name: García, R. A.
name: Mathur, S.
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: Quasi-periodic modulations of the stellar light curve may result from dark spots crossing the visible stellar disc. Due to differential rotation, spots at different latitudes generally have different rotation periods. Hence, by studying spot-induced modulations, one can learn about stellar surface (differential) rotation and magnetic activity. Recently, Reinhold & Arlt (2015) proposed a method based on the Lomb-Scargle periodogram of light curves to identify the sign of the differential rotation at the stellar surface. Our goal is to understand how the modulation of the stellar light curve due to the presence of spots and the corresponding periodogram are affected by both the stellar and spot properties. We generate synthetic light curves of stars with different properties (inclination angle, limb darkening, and rotation rate) and spot configurations (number of spots, latitude, intensity contrast, and size). By analysing their Lomb-Scargle periodograms, we compute the ratio between the heights of the second and first harmonics of the rotation period (peak-height-ratio). We find that the peak-height ratios are essentially a function of a single parameter, the fraction of time the spot is visible, which is related to the sinusoidality of the spot modulation. We identify the conditions under which the periodogram analysis can actually provide an estimate of the spot latitudes and/or the stellar inclination angle. We also identify possible sources of error in the identification of the sign of the differential rotation.
description: 8 pages, 9 figures, accepted for publication in A&A
Effects of Proxima Centauri on Planet Formation in Alpha Centauri
Creators: name: Worth, R.
name: Sigurdsson, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Proxima Centauri is an M dwarf approximately 15,000 AU from the Alpha Centauri binary, comoving and likely in a loosely bound orbit. Dynamic simulations show this configuration can form from a more tightly bound triple system. As our nearest neighbors, these stars command great interest as potential planet hosts, and the dynamics of the stars govern the formation of any planets within the system. Here we present a scenario for the evolution of Alpha Centauri A and B and Proxima Centauri as a triple system. Based on N-body simulations, we determine this pathway to formation is plausible, and we quantify the implications for planet formation in the Alpha Centauri binary. We expect this formation scenario may have truncated the circumstellar disk slightly more than a system that formed in the current configuration, but that it most likely does not prevent terrestrial planet formation. We simulate planet formation in this system and find that in most scenarios, two or more terrestrial planets can be expected around either Alpha Centauri A or B, orbiting in a region out to approximately 2 AU, assuming planetesimals and planetary embryos are able to first form in the system. Additionally, terrestrial planet formation and stability in Proxima Centauri's habitable zone is also plausible. However, an absence of planets around these stars may be indicative of highly disruptive stellar dynamics in the past.
description: Accepted to ApJ on Aug. 19th, 2016
Interview with David Harrison
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: Harrison, David
Public appearances
Community
Activism
Photography
Writing;
Acting
Identity politics

description: David discusses his experiences as an actor and creative writer and how these intersect with his experiences and perspectives as a trans person. Narrator Name: David Harrison. Interviewer Name: Evan Taylor. Pronouns: He.
Analysis of paired catchment data to predict the hydrologic effects of land-use changes
Creators: name: Nandakumar., Nadarajah
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.
title: Basic implementation for a 3D-viewer with web technology
Creators: name:  Wolf , Michael
name:  Reimann , Rüdiger
name:  Dieler , Silvia
name:  Ziesch , Jennifer
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2021

description: The presentation of 3D-data is gaining a crucial role for the government agencies in Germany. With the introduction of new federal laws on data storage and release, it became important to present 3D-data in an accessible way to everyone. Since the general public can handle web browser applications easily, unlike desktop applications, web-based technologies should be implemented for data presentation. A good user experience and a valuable access to the data requires that a number of components within a web technology need to work together in both back end and front end. A 3D-viewer with web technology requires minimum configuration to run. Any web application has standard technologies like programming languages PHP, .Net 5 or JavaScript, a descriptive language HTML and a hosting server with a particular software environment (LAMP). In addition, to visualize the 3D-data, it is necessary to integrate a 3D-engine, e.g. WebKit, and optimize data transfer between a database and a client. However, there are limitations of 3D-data presentation with web applications. For example, a 3D-engine retards performance and interaction with users. We have implemented full stack components of a 3D-viewer with developed web technologies for our own NIBIS3D-viewer at the State Authority for Mining, Energy and Geology of Lower Saxony. In our work, we show that these 3D-viewer components comprise a good running system for the visualization of 3D-data and represent a complete infrastructure from server over back end to front end interfaces for users.
Software Architecture Decision-Making Practices and Challenges: An Industrial Case Study
Creators: name: Dasanayake, Sandun
name: Markkula, Jouni
name: Aaramaa, Sanja
name: Oivo, Markku
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Software architecture decision-making is critical to the success of a software system as software architecture sets the structure of the system, determines its qualities, and has far-reaching consequences throughout the system life cycle. The complex nature of the software development context and the importance of the problem has led the research community to develop several techniques, tools, and processes to assist software architects in making better decisions. Despite these effort, the adoption of such systematic approaches appears to be quite limited in practice. In addition, the practitioners are also facing new challenges as different software development methods suggest different approaches for architecture design. In this paper, we study the current software architecture decision-making practices in the industry using a case study conducted among professional software architects in three different companies in Europe. As a result, we identified different software architecture decision-making practices followed by the software teams as well as their reasons for following them, the challenges associated with them, and the possible improvements from the software architects' point of view. Based on that, we recognized that improving software architecture knowledge management can address most of the identified challenges and would result in better software architecture decision-making.
description: 24th Australasian Software Engineering Conference (ASWEC 2015). Adelaide, Australia
Eyes on the road: brain computer interfaces and cognitive distraction in traffic
Creators: name: Bosch, Victoria
name: Mecacci, Giulio
Publisher: name: Universität Osnabrück
Year: 2023
Subjects: subject: brain-computer interfaces
subject: 100 - Philosophie

description: Novel wearable neurotechnology is able to provide insight into its wearer's cognitive processes and offers ways to change or enhance their capacities. Moreover, it offers the promise of hands-free device control. These brain-computer interfaces are likely to become an everyday technology in the near future, due to their increasing accessibility and affordability. We, therefore, must anticipate their impact, not only on society and individuals broadly but also more specifically on sectors such as traffic and transport. In an economy where attention is increasingly becoming a scarce good, these innovations may present both opportunities and challenges for daily activities that require focus, such as driving and cycling. Here, we argue that their development carries a dual risk. Firstly, BCI-based devices may match or further increase the intensity of cognitive human-technology interaction over the current hands-free communication devices which, despite being widely accepted, are well-known for introducing a significant amount of cognitive load and distraction. Secondly, BCI-based devices will be typically harder than hands-free devices to both visually detect (e.g., how can law enforcement check when these extremely small and well-integrated devices are used?) and restrain in their use (e.g., how do we prevent users from using such neurotechnologies without breaching personal integrity and privacy?). Their use in traffic should be anticipated by researchers, engineers, and policymakers, in order to ensure the safety of all road users.
Optimal plastic design of long-span surface structures: allowance for selfweight
Creators: name: Nakamura., Horoshi
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.
Experience with Heuristics, Benchmarks & Standards for Cylindrical Algebraic Decomposition
Creators: name: England, Matthew
name: Davenport, James H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Symbolic Computation (cs.SC)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: I.1.2, I.2.6
subject: 68W30, 68T05

description: In the paper which inspired the SC-Square project, [E. Abraham, Building Bridges between Symbolic Computation and Satisfiability Checking, Proc. ISSAC '15, pp. 1-6, ACM, 2015] the author identified the use of sophisticated heuristics as a technique that the Satisfiability Checking community excels in and from which it is likely the Symbolic Computation community could learn and prosper. To start this learning process we summarise our experience with heuristic development for the computer algebra algorithm Cylindrical Algebraic Decomposition. We also propose and discuss standards and benchmarks as another area where Symbolic Computation could prosper from Satisfiability Checking expertise, noting that these have been identified as initial actions for the new SC-Square community in the CSA project, as described in [E.~Abraham et al., SC$^2$: Satisfiability Checking meets Symbolic Computation (Project Paper)}, Intelligent Computer Mathematics (LNCS 9761), pp. 28--43, Springer, 2015].
description: Presented at the 1st International Workshop on Satisfiability Checking and Symbolic Computation (SC-Square 2016)
A Synoptic Map of Halo Substructures from the Pan-STARRS1 3π Survey
Creators: name: Bernard, Edouard J.
name: Ferguson, Annette M. N.
name: Schlafly, Edward F.
name: Martin, Nicolas F.
name: Rix, Hans-Walter
name: Bell, Eric F.
name: Finkbeiner, Douglas P.
name: Goldman, Bertrand
name: Martinez-Delgado, David
name: Sesar, Branimir
name: Wyse, Rosemary F. G.
name: Burgett, William S.
name: Chambers, Kenneth C.
name: Draper, Peter W.
name: Hodapp, Klaus W.
name: Kaiser, Nicholas
name: Kudritzki, Rolf-Peter
name: Magnier, Eugene A.
name: Metcalfe, Nigel
name: Wainscoat, Richard J.
name: Waters, Christopher
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a panoramic map of the entire Milky Way halo north of dec~-30 degrees (~30,000 deg^2), constructed by applying the matched-filter technique to the Pan-STARRS1 3Pi Survey dataset. Using single-epoch photometry reaching to g~22, we are sensitive to stellar substructures with heliocentric distances between 3.5 and ~35 kpc. We recover almost all previously-reported streams in this volume and demonstrate that several of these are significantly more extended than earlier datasets have indicated. In addition, we also report five new candidate stellar streams. One of these features appears significantly broader and more luminous than the others and is likely the remnant of a dwarf galaxy. The other four streams are consistent with a globular cluster origin, and three of these are rather short in projection (<10 degrees), suggesting that streams like Ophiuchus may not be that rare. Finally, a significant number of more marginal substructures are also revealed by our analysis; many of these features can also be discerned in matched-filter maps produced by other authors from SDSS data, and hence they are very likely to be genuine. However, the extant 3Pi data is currently too shallow to determine their properties or produce convincing CMDs. The global view of the Milky Way provided by Pan-STARRS1 provides further evidence for the important role of both globular cluster disruption and dwarf galaxy accretion in building the Milky Way's stellar halo.
description: 12 pages, 6 figures. MNRAS, in press. The maps in FITS format for the 26 distance slices are made available to the community at http://dx.doi.org/10.5281/zenodo.60518, while full sky colour maps in various projections are provided at http://www.roe.ac.uk/~ejb/streams.html
Metastable dark energy
Creators: name: Landim, Ricardo G.
name: Abdalla, Elcio
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We build a model of metastable dark energy, in which the observed vacuum energy is the value of the scalar potential at the false vacuum. The scalar potential is given by a sum of even self-interactions up to order six. The deviation from the Minkowski vacuum is due to a term suppressed by the Planck scale. The decay time of the metastable vacuum can easily accommodate a mean life time compatible with the age of the universe. The metastable dark energy is also embedded into a model with $SU(2)_R$ symmetry. The dark energy doublet and the dark matter doublet naturally interact with each other. A three-body decay of the dark energy particle into (cold and warm) dark matter can be as long as large fraction of the age of the universe, if the mediator is massive enough, the lower bound being at intermediate energy level some orders below the grand unification scale. Such a decay shows a different form of interaction between dark matter and dark energy, and the model opens a new window to investigate the dark sector from the point-of-view of particle physics.
description: 15 pages, 3 figures, references added. Accepted for publication in PLB
Electrical domain writing and nanoscale potential modulation on LaVO$_3$/SrTiO$_3$
Creators: name: Balal, Mohammad
name: Sanwlani, Shilpa
name: Wadehra, Neha
name: Chakraverty, Suvankar
name: Sheet, Goutam
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The high-mobility 2DEGs formed at the interfaces between certain insulating perovskite oxides have been known to be a novel playground of exotic physical orders like, superconductivity and ferromagnetism and their inter-coupling. There have been efforts to accomplish even more exotic properties at such interfaces of oxide heterostructures through nano-structuring of the surface. In this paper we report writing and erasing charge domains on such an oxide heterostructure LaVO$_3$/SrTiO$_3$ using a conductive AFM cantilever. We have patterned these domains in a periodic fashion in order to create artificial lattices on the surface. Through kelvin probe microscopy, electrostatic force microscopy and conductivity mapping of such artificial lattices we found that the domains not only trap charge carriers but also develop a controllable potential landscape on the surface which coincides with a modulation of local electrical conductivity. The ability to pattern such nanostructures reversibly offers unprecedented opportunities of realizing ultra-high storage density devices in high mobility oxide heterostructures.
description: 10 pages, 5 figures
Performance Investigation on AA-LRT Level cross Signaling System
Creators: name: Alemu, Jima
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Level crossings have been identified as a particular weak point in road and railway infrastructure. Installing efficient and reliable level crossing signaling system ensures the safe operation of the railway network. As most of its subsystem and components are working in open atmospheres, its operations are sometimes very difficult to monitor. Their reliability and maintainability directly affect the capacity and availability of the railway network in terms of both infrastructure and trains operation. Ensuring the safety of both those attempting to cross and the individuals on-board is a primary concern for all AA-LRT operators. In this paper, first from the current AA-LRT railway level crossing signaling system installation and configuration, feared event model is developed (Collision between train and vehicle) by a Fault Tree. Second perform in-depth analyses of the reliability, availability and maintenance of AA-LRT railway level cross signaling system with initial design failure and repair rate data used to estimate the reliability, availability and maintenance for each subsystem. The system is classified in different subsystems in series like barrier, axle counter, rail signal, LC controller and interlocking (CBI). Mathematical model of these subsystems have been developed using Markov process. Then reliability and maintainability of every sub systems are evaluated and graph is plotted for different time intervals to investigate their performance. Moreover, maintenance intervals at different reliability values and steady state reliability of different subsystems are estimated and modeled. Third, study methodologies selected which are quantitative and analytical data analysis methods are evaluated and graph is plotted for different time intervals. The analysis from this thesis shows that reliability of barrier, rail Signal, LC controller, CBI and axle counter are 0.66, 0.98, 0.99, 0.96 and 0.96 respectively after 5000 hours, the reliability of the entire level crossing after 5000 hour of operation is 60.00 % and maintainability of Barrier, Axle counter, LC controller, rail signal and CBI after one hour are 0.865, .899, 0.926, 0.939, and 0.909 respectively according to the design data.