cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tuning the electronic and the crystalline structure of LaBi by pressure
Creators: name: Tafti, F. F.
name: Torikachvili, M. S.
name: Stillwell, R. L.
name: Baer, B.
name: Stavrou, E.
name: Weir, S. T.
name: Vohra, Y. K.
name: Yang, H. -Y.
name: McDonnell, E. F.
name: Kushwaha, S. K.
name: Gibson, Q. D.
name: Cava, R. J.
name: Jeffries, J. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Extreme magnetoresistance (XMR) in topological semimetals is a recent discovery which attracts attention due to its robust appearance in a growing number of materials. To search for a relation between XMR and superconductivity, we study the effect of pressure on LaBi taking advantage of its simple structure and simple composition. By increasing pressure we observe the disappearance of XMR followed by the appearance of superconductivity at P=3.5 GPa.The suppression of XMR is correlated with increasing zero-field resistance instead of decreasing in-field resistance. At higher pressures, P=11 GPa, we find a structural transition from the face center cubic lattice to a primitive tetragonal lattice in agreement with theoretical predictions. We discuss the relationship between extreme magnetoresistance, superconductivity, and structural transition in LaBi.
description: 10 pages, 10 figures, 1 table
Introduction to Faraday tomography and its future prospects
Creators: name: Takahashi, Keitaro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Faraday tomography is a new method of the study of cosmic magnetic fields enabled by broadband low-frequency radio observations. By Faraday tomography, it is possible to obtain the Faraday dispersion function which contains information on the line-of-sight distributions of magnetic fields, thermal electron density, and cosmic-ray electron density by measuring the polarization spectrum from a source of synchrotron radiation over a wide band. Furthermore, by combining it with 2-dimensional imaging, Faraday tomography allows us to explore the 3-dimensional structure of polarization sources. The application of Faraday tomography has been active in the last 20 years, when broadband observation has become technically feasible. However, the Faraday dispersion function is mathematically the Fourier transform of the polarization spectrum, and since the observable band is finite, it is impossible to obtain a complete Faraday dispersion function by performing Fourier transform. In addition, the Faraday dispersion function does not directly reflect the distribution of magnetic field, thermal-electron density, and cosmic-ray electron density in the physical space, and its physical interpretation is not straightforward. Despite these two difficult problems, Faraday tomography is attracting much attention because it has great potential as a new method for studying cosmic magnetic fields and magnetized plasmas. In particular, the next-generation radio telescope SKA (Square Kilometre Array) is capable of polarization observation with unprecedented sensitivity and broad bands, and the application of Faraday tomography is expected to make dramatic progress in the field of cosmic magnetic fields. In this review, we explain the basics of Faraday tomography with simple and instructive examples. Then representative algorithms to realize Faraday tomography are introduced and finally some applications are shown.
description: Review article, 35 pages, 32 figures
Nonlocal traffic models with general kernels: singular limit, entropy admissibility, and convergence rate
Creators: name: Colombo, Maria
name: Crippa, Gianluca
name: Marconi, Elio
name: Spinolo, Laura V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L65

description: Nonlocal conservation laws (the signature feature being that the flux function depends on the solution through the convolution with a given kernel) are extensively used in the modeling of vehicular traffic. In this work we discuss the singular local limit, namely the convergence of the nonlocal solutions to the entropy admissible solution of the conservation law obtained by replacing the convolution kernel with a Dirac delta. Albeit recent counter-examples rule out convergence in the general case, in the specific framework of traffic models (with anisotropic convolution kernels) the singular limit has been established under rigid assumptions, i.e. in the case of the exponential kernel (which entails algebraic identities between the kernel and its derivatives) or under fairly restrictive requirements on the initial datum. In this work we obtain general convergence results under assumptions that are entirely natural in view of applications to traffic models, plus a convexity requirement on the convolution kernels. We then provide a general criterion for entropy admissibility of the limit and a convergence rate. We also exhibit a counter-example showing that the convexity assumption is necessary for our main compactness estimate.
description: 22 pages, 1 figure
Neutrino energy reconstruction from one muon and one proton events
Creators: name: Furmanski, Andrew P.
name: Sobczyk, Jan T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose a new method of selection of high purity charge current quasielastic neutrino events with a good reconstruction of interacting neutrino energy. Performance of the method was verified with several tests using GENIE, NEUT and NuWro Monte Carlo events generators with carbon and argon targets. The method can be useful in neutrino oscillation studies with a few GeV energy beams.
description: 8 pages, 5 figures
The rise of the general practitioner in Victoria, 1870-1930
Creators: name: Pensabene, T. S. .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
On the efficiency of techniques for the reduction of impulsive noise in astronomical images
Creators: name: Popowicz, A.
name: Kurek, A. R.
name: Blachowicz, T.
name: Orlov, V.
name: Smolka, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The impulsive noise in astronomical images originates from various sources. It develops as a result of thermal generation in pixels, collision of cosmic rays with image sensor or may be induced by high readout voltage in Electron Multiplying CCD (EMCCD). It is usually efficiently removed by employing the dark frames or by averaging several exposures. Unfortunately, there are some circumstances, when either the observed objects or positions of impulsive pixels evolve and therefore each obtained image has to be filtered independently. In this article we present an overview of impulsive noise filtering methods and compare their efficiency for the purpose of astronomical image enhancement. The employed set of noise templates consists of dark frames obtained from CCD and EMCCD cameras working on ground and in space. The experiments conducted on synthetic and real images, allowed for drawing numerous conclusions about the usefulness of several filtering methods for various: (1) widths of stellar profiles, (2) signal to noise ratios, (3) noise distributions and (4) applied imaging techniques. The results of presented evaluation are especially valuable for selection of the most efficient filtering schema in astronomical image processing pipelines.
description: MNRAS accepted (July 2016), Monthly Notices of the Royal Astronomical Society (2016)
A possibile use of the Metaverse in the prevention of corporate crimes
Creators: name: Coppola, Fabio
Publisher: name: Zenodo
Year: 2023
Subjects: Metaverse
Compliance programs
Digital Criminal Compliance
Preventing Corporate Crimes

description: Starting from the analysis of the compliance era, which encourages companies to actively participate in preventing corporate crimes through compliance programs, I am proposing a potential enhancement in digital compliance by leveraging AI tools, specifically the Metaverse as a 'digital twin' of the real world.
Reinterpreting deformed Heisenberg algebras
Creators: name: Wagner, Fabian
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Minimal and maximal uncertainties of position measurements are widely considered possible hallmarks of low-energy quantum as well as classical gravity. While General Relativity describes interactions in terms of spatial curvature, its quantum analogue may also extend to the realm of curved momentum space as suggested, e. g. in the context of Relative Locality in Deformed Special Relativity. Drawing on earlier work, we show in an entirely Born reciprocal, i. e. position and momentum space covariant, way that the quadratic Generalized Extended Uncertainty principle can alternatively be described in terms of quantum dynamics on a general curved cotangent manifold. In the case of the Extended Uncertainty Principle the curvature tensor in position space is proportional to the noncommutativity of the momenta, while an analogous relation applies to the curvature tensor in momentum space and the noncommutativity of the coordinates for the Generalized Uncertainty Principle. In the process of deriving this map, the covariance of the approach constrains the admissible models to an interesting subclass of noncommutative geometries which has not been studied before. Furthermore, we reverse the approach to derive general anisotropically deformed uncertainty relations from general background geometries. As an example, this formalism is applied to (anti)-de Sitter spacetime.
description: v2 Error corrected, sections added, conclusions modified v3 One sentence removed, published version, 9 pages, no figures
Measurement of Magnetic Susceptibility of Diamagnetic Liquids Exploiting the Moses Effect
Creators: name: Shulman, David
name: Lewkowicz, Meir
name: Bormashenko, Edward
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: A novel comparative technique enabling measurement of the magnetic susceptibility of diamagnetic liquids with the "Moses effect" is presented. The technique is based on the experimental establishment of the deformation of the liquid/vapor interface by a steady magnetic field. The deformation of the liquid surface by a modest magnetic field $(B\sim 0.60T)$ is measured with an optical technique. The surface tension of the liquid is taken into account. The magnetic susceptibilities of the investigated liquids (Ethanol and Glycerol) were calculated from the maximal slope of the liquid/air interface. The suggested approach yields an accuracy on the order of about $0.4-0.6\%$ and hence is superior to previous methods which used the \textquotedblleft Moses effect\textquotedblright\ for the same purpose.
Parsec-scale jet properties of the gamma-ray quasar 3C 286
Creators: name: An, T.
name: Lao, B. -Q.
name: Zhao, W.
name: Mohan, P.
name: Cheng, X. -P.
name: Cui, Y. -Z.
name: Zhang, Z. -L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The quasar 3C~286 is one of two compact steep spectrum sources detected by the {\it Fermi}/LAT. Here, we investigate the radio properties of the parsec(pc)-scale jet and its (possible) association with the $γ$-ray emission in 3C~286. The Very Long Baseline Interferometry (VLBI) images at various frequencies reveal a one-sided core--jet structure extending to the southwest at a projected distance of $\sim$1 kpc. The component at the jet base showing an inverted spectrum is identified as the core, with a mean brightness temperature of $2.8\times 10^{9}$~K. The jet bends at about 600 pc (in projection) away from the core, from a position angle of $-135^\circ$ to $-115^\circ$. Based on the available VLBI data, we inferred the proper motion speed of the inner jet as $0.013 \pm 0.011$ mas yr$^{-1}$ ($β_{\rm app} = 0.6 \pm 0.5$), corresponding to a jet speed of about $0.5\,c$ at an inclination angle of $48^\circ$ between the jet and the line of sight of the observer. The brightness temperature, jet speed and Lorentz factor are much lower than those of $γ$-ray-emitting blazars, implying that the pc-scale jet in 3C~286 is mildly relativistic. Unlike blazars in which $γ$-ray emission is in general thought to originate from the beamed innermost jet, the location and mechanism of $γ$-ray emission in 3C~286 may be different as indicated by the current radio data. Multi-band spectrum fitting may offer a complementary diagnostic clue of the $γ$-ray production mechanism in this source.
description: 9 pages, 4 figures, accept for publication in MNRAS
Nuestra (Mi) historia, los archivos como un recurso integral en las instituciones educacionales
Creators: name: Meneses Jorquera, Antia
Publisher: name: Zenodo
Year: 2018
Subjects: Patrimonio Escolar
Archivos Escolares
Identidad comunitaria

description: Ponencia presentada en el año 2018 por la estudiante de Licenciatura en Gestión de Información, Bibliotecología y Archivística de la Universidad Alberto Hurtado en el III Congreso Nacional de Educación y Patrimonio del Programa de archivos Escolares del Instituto de Historia de la Pontificia Universidad Católica de Chile, para la temática II del encuentro llamada Patrimonio escolar e identidad. En ella la estudiante narra su historia de inicio en el campo de la Archivística en Chile, desde la enseñanza media hasta la universitaria, proyectando los beneficios que la practica de archivos escolares les brinda a la comunidad escolar.
Cutting knife limitations in cutting stock problems
Creators: name: Farley, Alan A.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Robustness analysis of bimodal networks in the whole range of degree correlation
Creators: name: Mizutaka, Shogo
name: Tanizawa, Toshihiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present exact analysis of the physical properties of bimodal networks specified by the two peak degree distribution fully incorporating the degree-degree correlation between node connection. The structure of the correlated bimodal network is uniquely determined by the Pearson coefficient of the degree correlation, keeping its degree distribution fixed. The percolation threshold and the giant component fraction of the correlated bimodal network are analytically calculated in the whole range of the Pearson coefficient from $-1$ to $1$ against two major types of node removal, which are the random failure and the degree-based targeted attack. The Pearson coefficient for next-nearest-neighbor pairs is also calculated, which always takes a positive value even when the correlation between nearest-neighbor pairs is negative. From the results, it is confirmed that the percolation threshold is a monotonically decreasing function of the Pearson coefficient for the degrees of nearest-neighbor pairs increasing from $-1$ and $1$ regardless of the types of node removal. In contrast, the node fraction of the giant component for bimodal networks with positive degree correlation rapidly decreases in the early stage of random failure, while that for bimodal networks with negative degree correlation remains relatively large until the removed node fraction reaches the threshold. In this sense, bimodal networks with negative degree correlation are more robust against random failure than those with positive degree correlation.
description: 8 pages, 7 figures
Black Holes with Electric and Magnetic Charges in $F(R)$ Gravity
Creators: name: Nashed, G. G. L.
name: Nojiri, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct spherically symmetric and static solutions in $F(R)$ gravity coupled with electromagnetic fields. The solutions include new types of black holes with electric and magnetic charges. We show that the higher-derivative terms make the curvature singularity much softer than that in the charged black holes in Einstein's general relativity. We calculate some thermodynamical quantities of the obtained black holes like entropy, Hawking radiation, and quasi-local energy and we confirm that the black hole solutions satisfy the first law of thermodynamics. Finally, we study the stability analysis using the odd-type mode and show that there are stable black hole solutions and the radial speed of the parity-odd mode is unit, that is, the speed of light.
description: LaTeX 20 pages, 9 figures, to appear in Fortschritte der Physik - Progress of Physics
Performance of Large Area X-ray Proportional Counters in a Balloon Experiment
Creators: name: Roy, J.
name: Agrawal, P. C.
name: Dedhia, D. K.
name: Manchanda, R. K.
name: Shah, P. B.
name: Chitnis, V. R.
name: Gujar, V. M.
name: Parmar, J. V.
name: Pawar, D. M.
name: Kurhade, V. B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: ASTROSAT is India's first satellite fully devoted to astronomical observations covering a wide spectral band from optical to hard X-rays by a complement of 4 co-aligned instruments and a Scanning Sky X-ray Monitor. One of the instruments is Large Area X-ray Proportional Counter with 3 identical detectors. In order to assess the performance of this instrument, a balloon experiment with two prototype Large Area X-ray Proportional Counters (LAXPC) was carried out on 2008 April 14. The design of these LAXPCs was similar to those on the ASTROSAT except that their field of view (FOV) was 3$^{\circ}$ $\times$ 3$^{\circ}$ versus FOV of 1$^{\circ}$ $\times$ 1$^{\circ}$ for the LAXPCs on the ASTROSAT. The LAXPCs are aimed at the timing and spectral studies of X-ray sources in 3-80 keV region. In the balloon experiment, the LAXPC, associated electronics and support systems were mounted on an oriented platform which could be pre-programmed to track any source in the sky. A brief description of the LAXPC design, laboratory tests, calibration and the detector characteristics is presented here. The details of the experiment and background counting rates of the 2 LAXPCs at the float altitude of about 41 km are presented in different energy bands. The bright black hole X-ray binary Cygnus X-1 (Cyg X-1) was observed in the experiment for $\sim$ 3 hours. Details of Cyg X-1 observations, count rates measured from it in different energy intervals and the intensity variations of Cyg X-1 detected during the observations are presented and briefly discussed.
description: 23 pages, 14 figures in Experimental Astronomy Astrophysical Instrumentation and Methods August 2016,Vol 42, ISSN 0922-6435
Axial-vector and pseudoscalar tetraquarks $[ud][\bar{c}\bar{s}]$
Creators: name: Sundu, H.
name: Agaev, S. S.
name: Azizi, K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Spectroscopic parameters and widths of the fully open-flavor axial-vector and pseudoscalar tetraquarks $X_{\mathrm{AV}}$ and $X_{\mathrm{PS}}$ with content $[ud][\overline{c}\overline{s}]$ are calculated by means of the QCD sum rule methods. Masses and current couplings of $X_{\mathrm{AV}}$ and $X_{ \mathrm{PS}}$ are found using two-point sum rule computations performed by taking into account various vacuum condensates up to dimension $10$. The full width of the axial-vector state $X_{\mathrm{AV}}$ is evaluated by including into analysis $S$-wave decay modes $X_{\mathrm{AV}}\to D^{\ast }(2010)^{-}K^{+}$, $\overline{D}^{\ast }(2007)^{0}K^{0}$, $D^{-}K^{\ast }(892)^{+}$, and $\overline{D}^{0}K^{\ast }(892)^{0}$. In the case of $X_{ \mathrm{PS}}$, we consider $S$-wave decay $X_{\mathrm{PS}}\to \overline{D} _{0}^{\ast }(2300)^{0}K^{0}$, and $P$-wave processes $X_{\mathrm{PS}}\to D^{-}K^{\ast}(892)^{+}$ and $X_{\mathrm{PS}}\to \overline{D} ^{0}K^{\ast}(892)^{0}$. To determine partial widths of these decay modes, we employ the QCD light-cone sum rule method and soft-meson approximation, which are necessary to estimate strong couplings at tetraquark-meson-meson vertices $X_{\mathrm{AV}}D^{-}D^{\ast }(2010)^{-}K^{+} $, etc. Our predictions for the mass $m_{\mathrm{AV}}=(2800 \pm 75)~\mathrm{MeV}$ and width $Γ_{\mathrm{AV}}=(58 \pm 10)~\mathrm{MeV}$ of the tetraquark $X_{ \mathrm{AV}}$, as well as results $m_{\mathrm{PS}}=(3000 \pm 60)~\mathrm{MeV} $ and $Γ_{\mathrm{PS}}=(65 \pm 12)~\mathrm{MeV}$ for the same parameters of $X_{\mathrm{PS}}$ may be useful in future experimental studies of multiquark hadrons.
description: 14 Pages, 4 Figures and 2 Tables
Do Lead Halide Hybrid Perovskites Have Hydrogen Bonds?
Creators: name: Ibaceta-Jaña, Josefa
name: Chugh, Manjusha
name: Novikov, Alexander S.
name: Mirhosseini, Hossein
name: Kühne, Thomas D.
name: Szyszka, Bernd
name: Wagner, Markus R.
name: Muydinov, Ruslan
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 530 Physik
subject: hydrogen
subject: molecules
subject: noncovalent interactions
subject: polarity
subject: Raman spectroscopy

description: Hydrogen bonds impact many material properties due to the bond directionality and collective strength. For them to exist, the atoms connected to hydrogen should possess high electronegativity, the distance between the interacting atoms should be less than their van der Waals radii, and there should be a charge transfer between them. In hybrid perovskites, the impact of hydrogen bonds is ascribed to several phenomena. Among them are the effect of passivation at the surface, structural stability of the mixed cation compounds, structural instability of FAPbI3, and ferroelectric behavior. In this paper, we applied a deterministic method to prove the existence of hydrogen bonds using Raman spectroscopy. This approach was successfully applied to water and is based on the emergence of a Raman mode as a result of the intermolecular charge transfer, which is not measured for the isolated molecule. With the help of DFT calculations, we attributed the Raman modes detected at room temperature (RT) for MAI and FAI and compared them with the Raman spectra of MAPbX3 and FAPbX3. This comparison has shown that there are no hydrogen bonds in hybrid lead halide perovskites at RT.
Interface high-temperature superconductivity
Creators: name: Wang, Lili
name: Ma, Xucun
name: Xue, Qi-Kun
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Cuprate high temperature superconductors consist of two quasi-two-dimensional (2D) substructures: CuO2 superconducting layers and charge reservoir layers. The superconductivity is realized by charge transfer from the charge reservoir layers into the superconducting layers without chemical dopants and defects being introduced into the latter, similar to modulation-doping in semiconductor superlattices of AlGaAs/GaAs. Inspired by this scheme, we have been searching for high temperature superconductivity in ultrathin films of superconductors epitaxially grown on semiconductor/oxide substrates since 2008. We have observed interface enhanced superconductivity in both conventional and unconventional superconducting films, including single atomic layer films of Pb and In on Si substrates and single unit cell (UC) films of FeSe on SrTiO3 (STO) substrates. The discovery of high temperature superconductivity with a superconducting gap of ~20 meV in 1UC-FeSe/STO has stimulated tremendous interest in superconductivity community, for it opens new avenue for both raising superconducting transition temperature and understanding the pairing mechanism of unconventional high temperature superconductivity. Here, we review mainly the experimental progress on interface enhanced superconductivity in the three systems mentioned above with emphasis on 1UC-FeSe/STO, studied by scanning tunneling microscopy/spectroscopy, angle-resolved photoemission spectroscopy and transport experiments. We discuss the roles of interfaces and possible pairing mechanism inferred from those studies.
description: 14 pages, 8 figures
Production functions and measurement of substitution elasticities
Creators: name: Caddy, Vernon.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Psychoacoustics of Sound Reproduction in Art Exhibits
Creators: name: Lee, Lionel C J
name: Yong, Kian Leong
name: Tan, Cheng Hock Alfred
Publisher: name: Singapore Institute of Technology
Year: 2023
Subjects: Acoustics and noise control (excl. architectural acoustics)
Acoustics and acoustical devices; waves

description: A study was conducted to understand how psychoacoustics can play a role in music “listening”, particular in a small arts gallery. As the appreciation of a recorded audio of an exhibit can interfere with its adjacent exhibits, it is often very difficult to isolate individual exhibit’s audio display without extensive sound abatement or control measures especially in the low frequencies range. In our study, high-frequency audio is extracted and played through small speakers while its low-frequency component is channelled to a vibration shaker mounted beneath a standing false flooring located in front of the exhibit. By making use of haptics in vibrotactile and psychoacoustics, a person standing on the false flooring is still able to “hear” and perceive the broad frequency spectrum without losing much listening pleasure. The location of the shaker on the false flooring is optimised through vibration measurements for maximum vibrational amplitude response.
Dynamic performance-based assessment for tied-arch bridges subjected to heavy multi-axial tractor-trailers
Creators: name: Yuan, Peng
name: Cai, C. S.
name: Liu, Kai
name: Wang, Xiangjie
name: Ke, Lu
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mental Health

description: With rapid industrial development, the overloading of bridges caused by heavy multi-axle vehicles has become a critical problem worldwide. This work conducts a performance-based evaluation for tied-arch bridges subjected to heavy multi-axle vehicles, and a prediction function of the dynamic impact factor (DIF) for tied-arch bridges is proposed considering the bridge frequency, vehicle speeds, and road quality level. Specifically, the main parameters affecting the bridge response were first identified theoretically using a simplified multi-axle vehicle-bridge model. A tractor-trailer mechanical model and a tied-arch bridge model were subsequently constructed and coupled using displacement coordination conditions to explore the characteristics of the bridge response under heavy multi-axle tractor-trailers. Additionally, based on the identified factors, a detailed investigation of DIF was performed using the developed special vehicle-bridge interaction model. Finally, a suggested computational method for predicting DIF of tied-arch bridges was proposed. The results obtained indicate the impact effect of special tractor-trailers on bridges should not be ignored, even at low operating speeds and in good road conditions. Moreover, additional monitoring measures should be placed on the structural components that are sensitive to dynamic responses to regulate responses within an acceptable range.
Decision-making under uncertainty: a quantum value operator approach
Creators: name: Xin, Lizhi
name: Xin, Houwen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a quantum expected value theory for decision-making under uncertainty. Quantum density operator as value operator is proposed to simulate people's subjective beliefs. Value operator guides people to choose corresponding actions based on their subjective beliefs through objective world. The value operator can be constructed from quantum gates and logic operations as a quantum decision tree. The genetic programming is used to optimize and auto-generate quantum decision trees.
Multiband superconductivity in the correlated electron filled skutterudite system Pr(1-x)Ce(x)Pt4Ge12
Creators: name: Singh, Y. P.
name: Adhikari, R. B.
name: Zhang, S.
name: Huang, K.
name: Yazici, D.
name: Jeon, I.
name: Maple, M. B.
name: Dzero, M.
name: Almasan, Carmen C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Studies of superconductivity in multiband correlated electronic systems has become one of the central topics in condensed matter/materials physics. In this paper, we present the results of thermodynamic measurements on the superconducting filled skutterudite system Pr$_{1-x}$Ce$_x$Pt$_4$Ge$_{12}$ ($ 0 \leq x \leq 0.2$) to investigate how substitution of Ce at Pr sites affects superconductivity. We find that an increase in Ce concentration leads to a suppression of the superconducting transition temperature from $T_{c}\sim 7.9$ K for $x=0$ to $T_c\sim 0.6$ K for $x=0.14$. Our analysis of the specific heat data for $x\leq 0.07$ reveals that superconductivity must develop in at least two bands: the superconducting order parameter has nodes on one Fermi pocket and remains fully gapped on the other. Both the nodal and nodeless gap values decrease, with the nodal gap being suppressed more strongly, with Ce substitution. Ultimately, the higher Ce concentration samples ($x>0.07$) display a nodeless gap only.
description: 6 pages, 6 figures
A review on condition assessment technologies for power distribution network infrastructure
Creators: name: Bandara, Sahan
name: Rajeev, Pathmanathan
name: Gad, Emad
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Science Policy

description: Reliable performance of the electricity distribution networks is critical to avoid outages and disruptions which may lead to substantial economic losses. Some of the important components of the electricity distribution networks include overhead cables, utility poles, cross-arms, substations, and transformers. These components are subjected to deterioration with aging and pose risks of failure creating safety concerns, specially under extreme weather conditions. Efficient maintenance and the use of accurate condition assessment techniques to monitor the integrity of the aforementioned components are key factors to be considered in managing the electricity distribution assets. This article presents a review of different condition assessment techniques employed for monitoring the electricity distribution infrastructure. The conventional inspection techniques and advancements in non-destructive testing methods are discussed outlining the relative advantages and disadvantages. Other than the normal failures of distribution infrastructure due to component ageing, unexpected and less frequent extreme weather events can have significant impacts on the resilience of the electrical power infrastructure. Thus, the effects of extreme weather conditions on the reliability of the electricity distribution networks and the failure rates of assets are reviewed in this study. Further, the maintenance and decision-making approaches implemented in the power distribution networks are also discussed.
The European Muon Collaboration effect in Light-Front Hamiltonian Dynamics
Creators: name: Pace, Emanuele
name: Rinaldi, Matteo
name: Salme`, Giovanni
name: Scopetta, Sergio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A rigorous light-front formalism for electron deep inelastic scattering on unpolarized nuclei, in Bjorken limit, is reported. It preserves Poincaré covariance, macroscopic locality, both number of particles and momentum sum rules. The scheme is applied to the A=3 iso-doublet, very relevant in view of the planned operation with unpolarized and polarized beams at the Electron-Ion Collider. At variance with previous light-front estimates, our procedure, including a realistic nuclear description and free-nucleon structure functions, predicts a sizeable European Muon Collaboration effect for $^3$He. This will allow to analyze deviations from the proposed baseline in terms of genuine QCD effects. The extension to heavier nuclei is straightforward, although numerically challenging.
description: 7 pages and 7 figures
Labour market policy for disadvantaged workers : the relevance of overseas experience to Australian practice
Creators: name: Teicher, Julian.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
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MASTER optical polarization variability detection in the Microquasar V404 Cyg/GS2023+33
Creators: name: Lipunov, Vladimir M.
name: Gorbovskoy, E.
name: Kornilov, V.
name: Krushinskiy, V.
name: Vlasenko, D.
name: Tiurina, N.
name: Balanutsa, P.
name: Kuznetsov, A.
name: Budnev, N.
name: Gress, O.
name: Tlatov, A.
name: Lopez, R. Rebolo
name: Serra-Ricart, M.
name: Buckley, D. A. H.
name: Israelian, G.
name: Lodieu, N.
name: Ivanov, K.
name: Yazev, S.
name: Sergienko, Yu.
name: Gabovich, A.
name: Yurkov, V.
name: Levato, H.
name: Saffe, C.
name: Podesta, R.
name: Mallamaci, C.
name: Lopez, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: On 2015 June 15 the Swift space observatory discovered that the Galactic black hole candidate V404 Cyg was undergoing another active X-ray phase, after 25 years of inactivity (Barthelmy et al. 2015). Twelve telescopes of the MASTER Global Robotic Net located at six sites across four continents were the first ground based observatories to start optical monitoring of the microquasar after its gamma-ray wakeup at 18h 34m 09s U.T. on 2015 June 15 (Lipunov et al. 2015). In this paper we report, for the first time, the discovery of variable optical linear polarization, changing by 4-6% over a timescale of approximately 1 h, on two different epochs. We can conclude that the additional variable polarization arisies from the relativistic jet generated by the black hole in V404Cyg. The polarization variability correlates with optical brightness changes, increasing when the flux decreases.
description: 10 pages, 1 figures, 4 tables, accepted for publication in the The Astrophysical Journal
Uneven distribution of interfacial bond stress in steel fiber-reinforced concrete-encased steel composite structures
Creators: name: Wu, Kai
name: Qian, Shiyuan
name: Zheng, Huiming
name: Zhang, Yanjie
name: Zhu, Ruizhe
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Biotechnology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: To solve the congestion of reinforcement and the difficulty of concrete pouring in concrete-encased steel (CES) structure, steel fiber-reinforced concrete-encased steel (SFRCES) structure was proposed. Push-out tests of 34 SFRCES specimens were carried out in this paper to study the interfacial bond stress distribution, and load-displacement curves were obtained. The interfacial ultimate bond strength calculated based on load-displacement curve is much greater than 0.2 MPa which is the interfacial design shear strength of composite steel and concrete structure in Eurocode 4. This illustrates that the design of SFRCES structure is partial to safety. Furthermore, different from the previous method using the assumption of uniform distribution of interfacial bond stress, the interfacial local bond stress was obtained based on strain data and mechanical derivation in this paper. Moreover, the influence of steel fiber volume rate, embedded length of steel, and thickness of concrete on the distribution of interfacial bond stress was analyzed by defining the uneven coefficient of interfacial bond stress distribution. Analysis results provide a theoretical basis for the design of SFRCES structure and lay a foundation for the application of SFRCES structure in practical engineering.
Integration of Physics-Based and Data-Driven Models for Hyperspectral Image Unmixing
Creators: name: Chen, Jie
name: Zhao, Min
name: Wang, Xiuheng
name: Richard, Cédric
name: Rahardja, Susanto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Spectral unmixing is one of the most important quantitative analysis tasks in hyperspectral data processing. Conventional physics-based models are characterized by clear interpretation. However they may not be suitable for analyzing scenes with unknown complex physical characteristics. Data-driven methods have developed rapidly in recent years, in particular deep learning methods because they possess superior capability in modeling complex and nonlinear systems. Simply transferring these methods as black-boxes to conduct unmixing may lead to low physical interpretability and generalization ability. This article reviews hyperspectral unmixing works that integrate advantages of both physics-based models and data-driven methods by means of deep neural network structures design, prior design and loss design. Most of these methods derive from a common mathematical optimization framework, and combine good interpretability with high accuracy.
description: IEEE Signal Process. Mag., to be published. Manuscript submitted March 14, 2022; revised June 25, 2022 and July 27, 2022; accepted August 27, 2022
New p- and n-type ferromagnetic semiconductors: Cr-doped BaZn2As2
Creators: name: Gu, Bo
name: Maekawa, Sadamichi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We find new ferromagnetic semiconductors, Cr-doped BaZn2As2, by employing a combined method of the density functional theory and the quantum Monte Carlo simulation. Due to a narrow band gap of 0.2 eV in host BaZn2As2 and the different hybridization of 3d orbitals of Cr impurity, the impurity bound states have been induced both below the top of valence band and above the bottom of conduction band. The long-range ferromagnetic coupling between Cr impurities is obtained with both p- and n-type carriers.
description: 4 pages, 4 figures. arXiv admin note: substantial text overlap with arXiv:1601.05165
Linked cluster expansion on trees
Creators: name: Iyer, Deepak
name: Wan, Yuyi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The linked cluster expansion has been shown to be highly efficient in calculating equilibrium and nonequilibrium properties of a variety of 1D and 2D classical and quantum lattice models. In this article, we extend the linked cluster method to the Cayley tree and its boundaryless cousin the Bethe lattice. We aim to (a) develop the linked cluster expansion for these lattices, a novel application, and (b) to further understand the surprising convergence efficiency of the linked cluster method, as well as its limitations. We obtain several key results. First, we show that for nearest-neighbor Hamiltonians of a specific form, all finite treelike clusters can be mapped to one dimensional finite chains. We then show that the qualitative distinction between the Cayley tree and Bethe lattice appears due to differing lattice constants that is a result of the Bethe lattice being boundaryless. We use these results to obtain the explicit closed-form formula for the zero-field susceptibility for the entire disordered phase up to the critical point for Bethe lattices of arbitrary degree; remarkably, only 1D chainlike clusters contribute. We also obtain the exact zero field partition function for the Ising model on both trees with only the two smallest clusters, similar to the 1D chain. Finally, these results achieve a direct comparison between an infinite lattice with a nonnegligible boundary and one without any boundary, allowing us to show that the linked cluster expansion eliminates boundary terms at each order of the expansion, answering the question about its surprising convergence efficiency. We conclude with some ramifications of these results, and possible generalizations and applications.
description: 10 pages, 8 figures
Appendix from Stress relaxation after low- and high-rate deformation of polyurethanes
Creators: name: Commins, Tom
name: Siviour, Clive R.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering
classificationCode: 30399
subject: Macromolecular and Materials Chemistry not elsewhere classified

description: Stress relaxation after low and high-rate deformation of polyurethanes - appendix
Ground Testing and Flight Demonstration of Charge Management of Insulated Test Masses Using UV LED Electron Photoemission
Creators: name: Saraf, Shailendhar
name: Buchman, Sasha
name: Balakrishnan, Karthik
name: Lui, Chin Yang
name: Soulage, Michael
name: Faied, Dohy
name: Hanson, John
name: Ling, Kuok
name: Jaroux, Belgacem
name: AlRashed, Abdullah
name: Nassban, Badr Al
name: Suwaidan, Badr Al
name: Harbi, Mohammed Al
name: Salamah, Badr Bin
name: Othman, Mohammed Bin
name: Qasim, Bandar Bin
name: DeBra, Daniel
name: Byer, Robert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The UV LED mission demonstrates the precise control of the potential of electrically isolated test masses that is essential for the operation of space accelerometers and drag free sensors. Accelerometers and drag free sensors were and remain at the core of geodesy, aeronomy, and precision navigation missions as well as gravitational science experiments and gravitational wave observatories. Charge management using photoelectrons generated by the 254 nm UV line of Hg was first demonstrated on Gravity Probe B and is presently part of the LISA Pathfinder technology demonstration. The UV LED mission and prior ground testing demonstrates that AlGaN UV LEDs operating at 255 nm are superior to Mercury vapor lamps because of their smaller size, lower draw, higher dynamic range, and higher control authority. We show flight data from a small satellite mission on a Saudi Satellite that demonstrates AC charge control (UV LEDs and bias are AC modulated with adjustable relative phase) between a spherical test mass and its housing. The result of the mission is to bring the UV LED device Technology Readiness Level (TRL) to TRL 9 and the charge management system to TRL 7. We demonstrate the ability to control the test mass potential on an 89 mm diameter spherical test mass over a 20 mm gap in a drag free system configuration. The test mass potential was measured with an ultra high impedance contact probe. Finally, the key electrical and optical characteristics of the UV LEDs showed less than 7.5 percent change in performance after 12 months in orbit.
description: 22 pages, 21 figures
Kindesschutz von unbegleiteten geflüchteten Kindern und Jugendlichen (MNA) : Ergebnisse einer Befragung mit dem Fokus auf die Verschwinden-Thematik
Creators: name: Hartmann, Andrea Barbara
name: Baier, Dirk
name: Eser Davolio, Mirjam
Publisher: name: ZHAW Zürcher Hochschule für Angewandte Wissenschaften
Year: 2023
Subjects: Migration
Flucht
Asyl
Kinder
Jugendliche
Verschwinden
Schweiz
Online-Befragung
362.7: Jugendhilfe

description: Schätzungen zufolge werden in Europa über zehntausend unbegleitete geflüchtete Kinder und Jugendliche vermisst. Über Gründe des Verschwindens und den Verbleib ist wenig bekannt, doch geben zwei europäische Studien (ECPAT, 2016; Missing Children Europe, 2016) Hinweise, dass die Kinder in der Regel wenige Stunden nach Ankunft und Eröffnung des Asylverfahrens untertauchen. Unklare Verantwortlichkeiten und Zuständigkeiten sowie fehlende internationale Zusammenarbeit erschweren eine Reaktion auf das Verschwinden. Kinder und Jugendliche auf der Flucht sind aufgrund ihres Alters und ihrer Reife speziell verletzlich. Insbesondere wenn sie ohne Begleitung von Erwachsenen unterwegs sind, ist ihre Situation zusätzlich prekär. Oft sind sie bereits auf der Flucht zahlreichen Abhängigkeitsverhältnissen ausgesetzt und äusserst vulnerabel für Ausbeutung jeglicher Art.

Für die Schweiz lässt sich das Phänomen bislang nur schwer einschätzen, da keine systematische Erfassung erfolgt. Verfügbar sind die Zahlen bezüglich einer «unkontrollierten Ausreise» von Unbegleiteten Minderjährigen Asylsuchenden (UMA, respektive Mineurs Non Accompagnés, MNA), welche Hinweise geben, dass die Anzahl von MNA, die ihre Asylunterkünfte unkontrolliert verlassen und somit untertauchen, in den letzten Jahren angestiegen ist. Der zuletzt erschienene Bericht der Nationalen Kommission zur Verhütung von Folter (NKVF, 2023) verweist auf 209 MNA, die im Jahr 2022 aus den Bundesasylzentren (BAZ) verschwunden sind.