cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Symmetry classification of variable coefficient cubic-quintic nonlinear Schrödinger equations
Creators: name: Özemir, C.
name: Güngör, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70G65, 76M60, 35Q55 (Primary) 35Nxx (Secondary)

description: A Lie-algebraic classification of the variable coefficient cubic-quintic nonlinear Schrödinger equations involving 5 arbitrary functions of space and time is performed under the action of equivalence transformations. It is shown that their symmetry group can be at most four-dimensional in the genuine cubic-quintic nonlinearity. It is only five-dimensional (isomorphic to the Galilei similitude algebra gs(1)) when the equations are of cubic type, and six-dimensional (isomorphic to the Schrödinger algebra sch(1)) when they are of quintic type.
Vanishing Love of Black Holes in General Relativity: From Spacetime Conformal Symmetry of a Two-dimensional Reduced Geometry
Creators: name: Katagiri, Takuya
name: Kimura, Masashi
name: Nakano, Hiroyuki
name: Omukai, Kazuyuki
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the underlying structure of the vanishing of the Love numbers of both Schwarzschild and Kerr black holes in terms of spacetime conformal symmetry in a unified manner for the static spin-$s$ fields. The perturbations can be reduced with the harmonic decomposition to a set of infinite static scalar fields in a two-dimensional anti-de Sitter spacetime~$({\rm AdS}_2)$. In the reduced system, each scalar field is paired with another, implying that all multipole modes of the perturbation can be regarded as symmetric partners, which can be understood from the property of the supersymmetry algebra. The generator of the supersymmetric structure is constructed from a closed conformal Killing vector field of ${\rm AdS}_2$. The associated conserved quantity allows one to show no static response, i.e., vanishing of the Love and dissipation numbers. We also discuss the vanishing Love numbers of the Kerr black hole with the nonzero dissipation numbers for the non-axisymmetric perturbations in terms of a radial constant found in a parallel manner as the axisymmetric field case even though the interpretation for the structure is controversial. The symmetric structure corresponds to the ``ladder'' symmetry in Hui et al. [JCAP 01, no.01, 032 (2022)] although the geometrical origin is different. Our ladder operator includes the generators of hidden symmetries in previous works.
description: 41 pages, v2: added discussion on the result of the Kerr black hole in terms of the Teukolsky equation, v3: minor corrections, accepted for publication in PRD
Megaspore palynology of the Brazeau formation (upper cretaceous), Nordegg area, Alberta
Creators: name: Gunther, P. R.
Publisher: name: University of Calgary
Year: 1970
Subjects: subject: QE 996 G84 1970
subject: Spores (Botany), Fossil
subject: Paleobotany - Cretaceous
subject: Geology - Alberta - Nordegg area

description: Bibliography: p. 93-96.
Search for Physics Beyond the Standard Model at BaBar and Belle
Creators: name: Calderini, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Recent results on the search for new physics at BaBar and Belle B-factories are presented. The search for a light Higgs boson produced in the decay of different Y resonances is shown. In addition, recent measurements aimed to discover invisible final states produced by new physics mechanisms beyond the standard model are presented.
description: On behalf of BaBar and Belle Collaborations - Presented at the 2011 Hadron Collider Physics symposium (HCP-2011), Paris, France, November 14-18 2011, 4 pages, 6 figure
Non-spatial habit reversal learning in rats, squirrels and chipmunks
Creators: name: Kolb, Bryan Edward
Publisher: name: University of Calgary
Year: 1970
Subjects: subject: QL 785 K64 1970
subject: Animal intelligence
subject: Learning, Psychology of
subject: Rats - Psychology
subject: Squirrels - Psychology
subject: Chipmunks - Psychology

description: Bibliography: p. 49-57.
Relaxation and Stripping: The Evolution of Sizes, Dispersions and Dark Matter Fractions in Major and Minor Mergers of Elliptical Galaxies
Creators: name: Hilz, Michael
name: Naab, Thorsten
name: Ostriker, Jeremiah P.
name: Thomas, Jens
name: Burkert, Andreas
name: Jesseit, Roland
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We revisit collisionless major and minor mergers of spheroidal galaxies in the context of the size evolution of elliptical galaxies. The simulations are performed as a series of mergers with mass-ratios of 1:1 and 1:10 for models representing pure bulges as well as bulges embedded in dark matter halos. For major and minor mergers, respectively, we identify and analyze two different processes, violent relaxation and stripping, leading to size evolution and a change of the dark matter fraction within the observable effective radius. Violent relaxation - which is the dominant mixing process for major mergers but less important for minor mergers - scatters relatively more dark matter particles than bulge particles to small. Stripping in minor mergers assembles stellar satellite particles at large radii in halo dominated regions of the massive host. This strongly increases the size of the bulge into regions with higher dark matter fractions leaving the inner host structure almost unchanged. A factor of two mass increase by minor mergers increases the dark matter fraction by 20 per cent. We present analytic corrections to simple one-component virial estimates for the evolution of the gravitational radii. If such a two-component system grows by minor mergers alone its size growth, $r_{\mathrm{e}} \propto M^α$, reaches values of $α\approx 2.4$, significantly exceeding the simple theoretical limit of $α= 2$. For major mergers the sizes grow with $α\lesssim 1$. Our results indicate that minor mergers of galaxies embedded in massive dark matter halos provide a potential mechanism for explaining the rapid size growth and the build-up of massive elliptical systems predicting significant dark matter fractions and radially biased velocity dispersions at large radii (abbreviated)
description: accepted for publication in MNRAS
Growth or Decay -- I: universality of the turbulent dynamo saturation
Creators: name: Beattie, James R.
name: Federrath, Christoph
name: Kriel, Neco
name: Mocz, Philip
name: Seta, Amit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The turbulent small-scale dynamo (SSD) is likely to be responsible for the magnetisation of the interstellar medium (ISM) that we observe in the Universe today. The SSD efficiently converts kinetic energy $E_{\rm kin}$ into magnetic energy $E_{\rm mag} $, and is often used to explain how an initially weak magnetic field with $E_{\rm mag} \ll E_{\rm kin}$ is amplified, and then maintained at a level $E_{\rm mag} \lesssim E_{\rm kin}$. Usually, this process is studied by initialising a weak seed magnetic field and letting the turbulence grow it to saturation. However, in this Part I of the Growth or Decay series, using three-dimensional, visco-resistive magnetohydrodynamical turbulence simulations up to magnetic Reynolds numbers of 2000, we show that the same final state in the integral quantities, energy spectra, and characteristic scales of the magnetic field can also be achieved if initially $E_{\rm mag} \sim E_{\rm kin}$ or even if initially $E_{\rm mag} \gg E_{\rm kin}$. This suggests that the final saturated state of the turbulent dynamo is set by the turbulence and the material properties of the plasma, independent of the initial structure or amplitude of the magnetic field. We discuss the implications this has for the maintenance of magnetic fields in turbulent plasmas and future studies exploring the dynamo saturation.
description: 16 pages. 11 figures. Accepted to MNRAS. Part I focuses on the journey towards saturation. Part II focuses on the decay into saturation
Proposed Cellular Network for Indian Conditions for Enhancement of Spectral Density and Reduction of Power Consumption & RF Pollution
Creators: name: Katiyar, Sumit
name: Jain, R. K.
name: Agarwal, N. K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: With the exponentially increasing demand for wireless communications the capacity of current cellular systems will soon become incapable of handling the growing traffic. Since radio frequencies are diminishing natural resources, there seems to be a fundamental barrier to further capacity increase. The solution can be found by using smart antenna systems. Smart or adaptive antenna arrays consist of an array of antenna elements with signal processing capability that optimizes the radiation and reception of a desired signal, dynamically. Smart antenna can place nulls in the direction of interferers via adapting adaptive updating of weights linked to each antenna element. They thus cancel out most of the cochannel interference resulting in better quality of reception and lower dropped calls. Smart antenna can also track the user within a cell via direction of arrival algorithms. This paper focuses on about the smart antenna in hierarchical cell clustering (overlay-underlay) with demand based frequency allocation techniques in cellular mobile radio networks in INDIA.
description: 5 pages, 7 figures and IEEE international conference; IEEE international conference, ICCCT-2011
Filippo Titi, Studio di pittura, scoltura, et architettura, nelle chiese di Roma
Creators: name: Garms, Jörg
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Rezension zu: Filippo Titi, Studio di pittura, scoltura, et architettura, nelle chiese di Roma. Edizione comparata a cura di Bruno Contardi e Serena Romano. I: Testo: 289 Seiten Text mit einer Anzahl unnumerierter Abbildungen. — II: Atlante: 421 Tafeln mit einer großen Anzahl Abbildungen. Florenz, Centro Di 1987. 250.000 Lire.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 41 Nr. 12 (1988): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Harnessing Unresolved Lensed Quasars: The Mathematical Foundation of the Fluctuation Curve
Creators: name: Bag, Satadru
name: Sohn, Wuhyun
name: Shafieloo, Arman
name: Liao, Kai
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Strong gravitational lensed quasars (QSOs) have emerged as powerful and novel cosmic probes as they can deliver crucial cosmological information, such as a measurement of the Hubble constant, independent of other probes. Although the upcoming LSST survey is expected to discover $10^3-10^4$ lensed QSOs, a large fraction will remain unresolved due to seeing. The stochastic nature of the quasar intrinsic flux makes it challenging to identify lensed ones and measure the time delays using unresolved light curve data only. In this regard, Bag et al (2022) introduced a data-driven technique based on the minimization of the fluctuation in the reconstructed image light curves. In this article, we delve deeper into the mathematical foundation of this approach. We show that the lensing signal in the fluctuation curve is dominated by the auto-correlation function (ACF) of the derivative of the joint light curve. This explains why the fluctuation curve enables the detection of the lensed QSOs only using the joint light curve, without making assumptions about QSO flux variability, nor requiring any additional information. We show that the ACF of the derivative of the joint light curve is more reliable than the ACF of the joint light curve itself because intrinsic quasar flux variability shows significant auto-correlation up to a few hundred days (as they follow a red power spectrum). In addition, we show that the minimization of fluctuation approach provides even better precision and recall as compared to the ACF of the derivative of the joint light curve when the data have significant observational noise.
description: 20 pages, 8 figures, 1 table, accepted for publication in ApJ
What children see and remember about pictures
Creators: name: Diamond, Diane C.
Publisher: name: University of Calgary
Year: 1977
Subjects: subject: BF 723 P36 D52 1976 Microfiche
subject: Perception in children
subject: Visual perception
subject: Visual perception - Testing
subject: Recognition (Psychology)
subject: Recollection (Psychology)
subject: Memory

description: Bibliography: p. 74-78.
Paul Binski, The Painted Chamber at Westminster
Creators: name: Schmidt, Gerhard
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Rezension zu: Paul Binski, The Painted Chamber at Westminster. London, The Society of Antiquaries (Occasional Papers, N. S. IX) 1986. 166 Seiten, 4 farbige und 74 Schwarz- Weiß-Tafeln, 18 £.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 41 Nr. 9 (1988): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
On the tomographic description of classical fields
Creators: name: Ibort, A.
name: Lopez-Yela, A.
name: Man'ko, V. I.
name: Marmo, G.
name: Simoni, A.
name: Sudarshan, E. C. G.
name: Ventriglia, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: After a general description of the tomographic picture for classical systems, a tomographic description of free classical scalar fields is proposed both in a finite cavity and the continuum. The tomographic description is constructed in analogy with the classical tomographic picture of an ensemble of harmonic oscillators. The tomograms of a number of relevant states such as the canonical distribution, the classical counterpart of quantum coherent states and a new family of so called Gauss--Laguerre states, are discussed. Finally the Liouville equation for field states is described in the tomographic picture offering an alternative description of the dynamics of the system that can be extended naturally to other fields.
Raman spectroscopic determination of the length, strength, compressibility, Debye temperature, elasticity, and force constant of the C-C bond in graphene
Creators: name: Yang, X. X.
name: Li, J. W.
name: Zhou, Z. F.
name: Wang, Y.
name: Yang, L. W.
name: Zheng, W. T.
name: Sun, Chang Q.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: From the perspective of bond relaxation and vibration, we have reconciled the Raman shifts of graphene under the stimuli of the number-of-layer, uni-axial-strain, pressure, and temperature in terms of the response of the length and strength of the representative bond of the entire specimen to the applied stimuli. Theoretical unification of the measurements clarifies that: (i) the opposite trends of Raman shifts due to number-of-layer reduction indicate that the G-peak shift is dominated by the vibration of a pair of atoms while the D- and the 2D-peak shifts involves z-neighbor of a specific atom; (ii) the tensile strain-induced phonon softening and phonon-band splitting arise from the asymmetric response of the C3v bond geometry to the C2v uni-axial bond elongation; (iii) the thermal-softening of the phonons originates from bond expansion and weakening; and (iv) the pressure- stiffening of the phonons results from bond compression and work hardening. Reproduction of the measurements has led to quantitative information about the referential frequencies from which the Raman frequencies shift, the length, energy, force constant, Debye temperature, compressibility, elastic modulus of the C-C bond in graphene, which is of instrumental importance to the understanding of the unusual behavior of graphene.
The symmetric quasi-classical model using on-the-fly time-dependent density functional theory within the Tamm-Dancoff approximation
Creators: name: Talbot, Justin J.
name: Head-Gordon, Martin
name: Cotton, Stephen J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The primary computational challenge when simulating nonadiabatic ab initio molecular dynamics is the unfavorable compute costs of electronic structure calculations with molecular size. Simple electronic structure theories, like time-dependent density functional theory within the Tamm-Dancoff approximation (TDDFT/TDA), alleviate this cost for moderately sized molecular systems simulated on realistic time scales. Although TDDFT/TDA does have some limitations in accuracy, an appealing feature is that, in addition to including electron correlation through the use of a density functional, the cost of calculating analytic nuclear gradients and nonadiabatic coupling vectors is often computationally feasible even for moderately-sized basis sets. In this work, some of the benefits and limitations of TDDFT/TDA are discussed and analyzed with regard to its applicability as a "back-end" electronic structure method for the symmetric quasi-classical Meyer-Miller model (SQC/MM). In order to investigate the benefits and limitations of TDDFT/TDA, SQC/MM is employed to predict and analyze a prototypical example of excited-state hydrogen transfer in gas-phase malonaldehyde. Then, the ring-opening dynamics of selenophene are simulated which highlight some of the deficiencies of TDDFT/TDA. Additionally, some new algorithms are proposed that speed up the calculation of analytic nuclear gradients and nonadiabatic coupling vectors for a set of excited electronic states.
description: 35 pages, 8 figures, 2 tables
Hodge theory and algebraic cycles
Creators: name: Paulsen, Matthias Christoph Bernhard
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: Hodge numbers
subject: integral Hodge conjecture
subject: unramified cohomology
subject: Hodge-Zahlen
subject: ganzzahlige Hodge-Vermutung
subject: unverzweigte Kohomologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: This thesis tackles different problems related to the connection between geometric and Hodge theoretic aspects of algebraic varieties. One of the main results, joint with Stefan Schreieder and Remy van Dobben de Bruyn, concerns the construction problem for Hodge numbers. We realize all Hodge diamonds in ℤ/m for arbitrary m ≥ 2 by smooth complex projective varieties. This results in a full answer to a question by Kollár about universal polynomial relations between Hodge numbers. Then we investigate the case of positive characteristic, where Hodge symmetry may fail. In this setting, we are able to realize even all asymmetric Hodge diamonds in ℤ/m. Therefore, we completely understand polynomial relations between Hodge numbers in arbitrary characteristic. Another main result of this thesis solves the first instances of a conjecture by Griffiths and Harris from 1985 about the degree of curves on very general hypersurfaces. Specifically, a very general complex hypersurface in ℙ⁴ of degree d ≥ 6 is conjectured to contain only curves of degree divisible by d. Based on a degeneration technique developed by Kollár in 1991, we prove this conjecture and its higher-dimensional generalizations for infinitely many values of d. The conjecture by Griffiths and Harris was not known for any d previously. Using the link between this problem and the failure of the integral Hodge conjecture, our result shows that the cokernel of the cycle class map is precisely ℤ/d for these hypersurfaces. In the last part of the thesis, we consider another counterexample to the integral Hodge conjecture, namely the first unirational fourfold with a non-algebraic Hodge class, recently found by Stefan Schreieder. We construct a smooth resolution of Schreieder's conic bundle and study a certain unramified cohomology class on it through a geometric description of the norm residue map in Borel–Moore homology. Our explicit approach allows to get a better understanding of this example and might help to decide in the future whether the constructed non-algebraic class is torsion.
A New Method to Calculate Electromagnetic Impedance Matching Degree in One-Layer Microwave Absorbers
Creators: name: Ma, Zhi
name: Cao, Chen-Tao
name: Liu, Qing-Fang
name: Wang, Jian-Bo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A delta-function method was proposed to quantitatively evaluate the electromagnetic impedance matching degree. Measured electromagnetic parameters of α-Fe/Fe3B/Y2O3 nanocomposites are applied to calculate the matching degree by the method. Compared with reflection loss and quarter-wave principle theory, the method accurately reveals the intrinsic mechanism of microwave transmission and reflection properties. A possible honeycomb structure with promising high-performance microwave absorption according to the method is also proposed.
description: 13 pages, 3 figures
Design and Control of a Multiphase Interleaving DC-DC Converter with Loss Optimizing Operating Strategies for Electric Vehicle
Creators: name: Karimi, Rashidreza
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: Electric Vehicle
subject: Interleaving DC-DC Converter
subject: Switching Power Supply
subject: Operating Strategy
subject: Control System Design
subject: Elektrofahrzeug
subject: Interleaving DC-DC-Wandler
subject: Schaltnetzteil
subject: Betriebsstrategie
subject: Regelungssystem Entwurf
subject: Dewey Decimal Classification::600 | Technik

description: The drivetrain components of commercial electric vehicles include the battery pack, inverter, and electric machine. However, in such a drivetrain configuration, the inverter input voltage (DC-Link voltage) is equal to the battery voltage, which presents some drawbacks. Firstly, different values are required to achieve the optimum voltage level during the battery stack and electric machine design process. Secondly, the battery state of charge negatively impacts the electric machine operating area. Additionally, as it will be demonstrated in this work, reducing the DC-Link voltage lowers inverter power losses. In operating points where the necessary machine voltage is lower than the battery voltage rated value, a fixed DC-Link voltage equal to the battery voltage results in additional inverter losses. The focus of this work is on the design and analysis of a battery electric vehicle drivetrain using an additional DC-DC converter extension in it. Accordingly, the main objective is to investigate the energy efficiency benefits of shifting the operating points of the drivetrain components by placing a DC-DC converter between the battery and the inverter-fed machine. For this purpose, a multiphase interleaving converter is selected, and through comprehensive modeling of the drivetrain, the appropriate control system is designed and evaluated on the one hand, and loss optimizing operating strategies are developed on the other hand to take the most advantage of the integration of a DC-DC converter into the drivetrain.
Tree Decomposition By Eigenvectors
Creators: name: Sander, Torsten
name: Sander, Jürgen W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C05 (Primary) 15A03 (Secondary)

description: In this work a composition-decomposition technique is presented that correlates tree eigenvectors with certain eigenvectors of an associated so-called skeleton forest. In particular, the matching properties of a skeleton determine the multiplicity of the corresponding tree eigenvalue. As an application a characterization of trees that admit eigenspace bases with entries only from the set {0, 1,-1} is presented. Moreover, a result due to Nylen concerned with partitioning eigenvectors of tree pattern matrices is generalized.
description: 25 pages
Decoherence effect on the Fano lineshapes in double quantum dots coupled between normal and superconducting leads
Creators: name: Baranski, J.
name: Domanski, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the Fano-type spectroscopic lineshapes of the T-shape double quantum dot coupled between the conducting and superconducting electrodes and analyze their stability on a decoherence. Because of the proximity effect the quantum interference patterns appear simultaneously at +/- epsilon_2, where epsilon_2 is an energy of the side-attached quantum dot. We find that decoherence gradually suppresses both such interferometric structures. We also show that at low temperatures another tiny Fano-type structure can be induced upon forming the Kondo state on the side-coupled quantum dot due to its coupling to the floating lead.
description: 8 pages, 7 figures
Mimosa nuda Benth.
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa
Mimosa nuda

description: 30. Mimosa nuda Benth.
 var. nuda
 var. glaberrima (Chodat & Hassler) Barneby
 var. ramosa (Benth.) Barneby
 See notes for M. debilis.
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 216, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
Highly sensitive thermal conductivity measurements of suspended membranes (SiN and diamond) using a 3w-Volklein method
Creators: name: Sikora, A.
name: Ftouni, H.
name: Richard, J.
name: Hébert, C.
name: Eon, D.
name: Omnès, F.
name: Bourgeois, O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A suspended system for measuring the thermal properties of membranes is presented. The sensitive thermal measurement is based on the 3$ω$ dynamic method coupled to a V$\ddot{o}$lklein geometry. The device obtained using micro-machining processes allows the measurement of the in-plane thermal conductivity of a membrane with a sensitivity of less than 10nW/K (+/-$5x10^{-3}$Wm$^{-1}K^{-1}$ at room temperature) and a very high resolution ($ΔK/K =10^{-3}$). A transducer (heater/thermometer) centered on the membrane is used to create an oscillation of the heat flux and to measure the temperature oscillation at the third harmonic using a Wheatstone bridge set-up. Power as low as 0.1nanoWatt has been measured at room temperature. The method has been applied to measure thermal properties of low stress silicon nitride and polycrystalline diamond membranes with thickness ranging from 100 nm to 400 nm. The thermal conductivity measured on the polycrystalline diamond membrane support a significant grain size effect on the thermal transport.
description: 17 pages
SNP genotype matrix of of a diversity panel of 267 barley accession
Creators: name: Mascher, Martin
Publisher: name: e!DAL - Plant Genomics and Phenomics Research Data Repository (PGP), IPK Gatersleben, Seeland OT Gatersleben, Corrensstraße 3, 06466, Germany
Year: 2016
Subjects: barley
genetic diversity
single-nucleotide polymorphisms

description: Genotype calls at 1,688,807 bi-allelic SNP positions for 267 wild and domesticated barley genebank accessions. Genotypes are encoded as follows: 0 means homozygous for the Morex reference allele (column "ref"), 2 means homozygous for the non-Morex, alternative allele (column "alt"), 1 means heterozygous, NA denotes a missing data point. SNP position are provided as coordinates on the Morex whole-genome shotgun assembly (International Barley Genome Sequencing Consortium, Nature 2012).
Magnetoelectric nature of skyrmions in a chiral magnetic insulator Cu2OSeO3
Creators: name: Seki, S.
name: Ishiwata, S.
name: Tokura, Y.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Dielectric properties were investigated under various magnitudes and directions of magnetic field (H) for a chiral magnetic insulator Cu2OSeO3. We found that the skyrmion crystal induces electric polarization (P) along either in-plane or out-of-plane direction of the spin vortices depending on the applied H-direction. The observed H-dependence of P in ferrimagnetic, helimagnetic, and skyrmion crystal state can be consistently described by the d-p hybridization model, highlighting an important role of relativistic spin-orbit interaction in the magnetoelectric coupling in Cu2OSeO3. Our analysis suggests that each skyrmion particle can locally carry electric dipole or quadrupole, which implies that the dynamics of skyrmions are controllable by the external electric field.
description: 5 pages, 4 figures
The role of adjustment in accurate interpersonal impressions
Creators: name: Human, Jacqueline Lauren
Publisher: name: University of British Columbia
Year: 2009

description: Accurate understanding between individuals is assumed to be associated with enhanced personal and interpersonal adjustment. Across a series of studies, we utilized the social accuracy model (Biesanz, 2007, 2009) to examine the relationship between perceiver and target adjustment with (a) impressionistic accuracy, the formation of accurate personality impressions across a wide range of attributes and (b) two Cronbachian-like (1955) components of accuracy – distinctive and normative accuracy. Across three round-robin studies, involving new acquaintances (Studies 1 and 2) and close peers (Study 3), diverse measures of adjustment were associated with components of perceptive accuracy (the good judge) and expressive accuracy (the good target). Specifically, perceiver adjustment was linked to normative accuracy, while target adjustment was linked to distinctive accuracy. Study 4 found that satisfaction with one’s romantic partner was associated with being viewed more distinctively by observers. Thus, across different social contexts and measures of adjustment, including behavioural and informant-reported indices, elements of perceptive and expressive accuracy were strongly and consistently linked to adjustment. In sum, well-adjusted individuals tend to view others normatively and in turn are viewed distinctively.
Detection of visible light from the darkest world
Creators: name: Kipping, David M.
name: Spiegel, David S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present the detection of visible light from the planet TrES-2b, the darkest exoplanet currently known. By analysis of the orbital photometry from publicly available Kepler data (0.4-0.9 microns), we determine a day-night contrast amplitude of (6.5 +/- 1.9 ppm), constituting the lowest amplitude orbital phase variation discovered. The signal is detected to 3.7 sigma confidence and persists in six different methods of modelling the data and thus appears robust. In contrast, we are unable to detect ellipsoidal variations or beaming effects, but we do provide confidence intervals for these terms. If the day-night contrast is interpreted as being due to scattering, it corresponds to a geometric albedo of Ag = 0.0253 +/- 0.0072. However, our models indicate that there is a significant emission component to day-side brightness, and the true albedo is even lower (<1%). By combining our measurement with Spitzer and ground-based data, we show that a model with moderate redistribution (Pn ~ 0.3) and moderate extra optical opacity (kappa' ~ 0.3-0.4) provide a compatible explanation to the data.
description: 5 pages, 3 figures. Accepted in MNRAS Letters. Minor typos corrected from last version
Storage and Retrieval of a Microwave Field in a Spin Ensemble
Creators: name: Kubo, Y.
name: Diniz, I.
name: Dewes, A.
name: Jacques, V.
name: Dreau, A.
name: Roch, J. -F.
name: Auffeves, A.
name: Vion, D.
name: Esteve, D.
name: Bertet, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report the storage and retrieval of a small microwave field from a superconducting resonator into collective excitations of a spin ensemble. The spins are nitrogen-vacancy centers in a diamond crystal. The storage time of the order of 30 ns is limited by inhomogeneous broadening of the spin ensemble.
description: 4 pages + supplementary material. Submitted to PRL
Indel genotype matrix of of a diversity panel of 267 barley accessions
Creators: name: Mascher, Martin
Publisher: name: e!DAL - Plant Genomics and Phenomics Research Data Repository (PGP), IPK Gatersleben, Seeland OT Gatersleben, Corrensstraße 3, 06466, Germany
Year: 2016
Subjects: barley
genetic diversity
single-nucleotide polymorphisms

description: Genotype calls at Indel positions for 267 wild and domesticated barley genebank accessions. Genotypes are encoded as follows: 0 means homozygous for the
			Morex reference allele (column "ref"), 2 means homozygous for the non-Morex, alternative allele (column "alt"), 1 means heterozygous, NA denotes a missing data point. Indel positions are provided
			as coordinates on the Morex whole-genome shotgun assembly (International Barley Genome Sequencing Consortium, Nature 2012).
Hinweise für Publikationen der Römisch-Germanischen Kommission
Creators: name: Die Redaktion
Publisher: name: Bericht der Römisch-Germanischen Kommission
Year: 2020

description: -
description: Bericht der Römisch-Germanischen Kommission, Bd. 97 2016(2020): Bericht der Römisch-Germanischen Kommission
VoIP Call Optimization in Diverse Network Scenarios Using Learning Based State-Space Search Technique
Creators: name: Chakraborty, Tamal
name: Mukhopadhyay, Atri
name: Misra, Iti Saha
name: Sanyal, Salil Kumar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: A VoIP based call has stringent QoS requirements with respect to delay, jitter, loss, MOS and R-Factor. Various QoS mechanisms implemented to satisfy these requirements must be adaptive under diverse network scenarios and applied in proper sequence, otherwise they may conflict with each other. The objective of this paper is to address the problem of adaptive QoS maintenance and sequential execution of available QoS implementation mechanisms with respect to VoIP under varying network conditions. In this paper, we generalize this problem as state-space problem and solve it. Firstly, we map the problem of QoS optimization into state-space domain and apply incremental heuristic search. We implement the proposed algorithm under various network and user scenarios in a VoIP test-bed for QoS enhancement. Then learning strategy is implemented for refinement of knowledge base to improve the performance of call quality over time. Finally, we discuss the advantages and uniqueness of our approach.
Integral Formulation of Macroscopic Quantum Electrodynamics in Dispersive Dielectric Objects
Creators: name: Forestiere, Carlo
name: Miano, Giovanni
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose an integral formulation of macroscopic quantum electrodynamics in the Heisenberg picture for linear dispersive dielectric objects of finite size, utilizing the Hopfield-type approach. By expressing the electromagnetic field operators as a function of the polarization density field operator via the retarded Green function for the vacuum, we obtain an integral equation that governs the evolution of the polarization density field operator. This formulation offers significant advantages, as it allows for the direct application of well-established computational techniques from classical electrodynamics to perform quantum electrodynamics computations in open, dispersive, and absorbing environments.
A Chemical Abundance Study of 10 Open Clusters Based on WIYN-Hydra Spectroscopy
Creators: name: Jacobson, H. R.
name: Pilachowski, C. A.
name: Friel, E. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a detailed chemical abundance study of evolved stars in 10 open clusters based on Hydra multi-object echelle spectra obtained with the WIYN 3.5m telescope. From an analysis of both equivalent widths and spectrum synthesis, abundances have been determined for the elements Fe, Na, O, Mg, Si, Ca, Ti, Ni, Zr, and for two of the 10 clusters, Al and Cr. To our knowledge, this is the first detailed abundance analysis for clusters NGC 1245, NGC 2194, NGC 2355 and NGC 2425. These 10 clusters were selected for analysis because they span a Galactocentric distance range Rgc~9-13 kpc, the approximate location of the transition between the inner and outer disk. Combined with cluster samples from our previous work and those of other studies in the literature, we explore abundance trends as a function of cluster Rgc, age, and [Fe/H]. The [Fe/H] distribution appears to decrease with increasing Rgc to a distance of ~12 kpc, and then flattens to a roughly constant value in the outer disk. Cluster average element [X/Fe] ratios appear to be independent of Rgc, although the picture for [O/Fe] is more more complicated by a clear trend of [O/Fe] with [Fe/H] and sample incompleteness. Other than oxygen, no other element [X/Fe] exhibits a clear trend with [Fe/H]; likewise, there does not appear to be any strong correlation between abundance and cluster age. We divided clusters into different age bins to explore temporal variations in the radial element distributions. The radial metallicity gradient appears to have flattened slightly as a function of time, as found by other studies. There is also indication that the transition from the inner disk to the outer disk occurs at different Galactocentric radii for different age bins. (Abridged.)
description: 35 pages, 12 figures, 18 tables; published in The Astronomical Journal (http://stacks.iop.org/1538-3881/142/59)
Probing the Delay Time of Supermassive Black Hole Binary Mergers With Gravitational Waves
Creators: name: Fang, Yun
name: Yang, Huan
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Merging supermassive black hole binaries is expected as a consequence of galaxy mergers, yet the detailed evolution path and underlying merging mechanisms of these binaries are still subject to large theoretical uncertainties. In this work, we propose to combine the (future) gravitational wave measurements of supermassive black hole binary merger events with the galaxy merger rate distributions from galaxy surveys/cosmological simulations, to infer the delay time of binary mergers, as a function of binary mass. The delay time encodes key information about binary evolution, which can be used to test the predictions of various evolution models. With a Mock data set of supermassive black hole binary merger events, we discuss how to infer the distribution of delay time with hierarchical Bayesian inference and test evolution models with the Bayesian model selection method. The astrophysical model uncertainties are also considered in the hierarchical Bayesian inference and Bayesian model selection.
description: Published in MNRAS
Fragmentation and quark distribution functions for the pion and kaon with explicit flavor-SU(3)-symmetry breaking
Creators: name: Nam, Seung-il
name: Kao, Chung-Wen
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the unpolarized pion and kaon fragmentation functions, employing the nonlocal chiral-quark model, which manifests the nonlocal interactions between the quarks and pseudoscalar mesons, considering the explicit flavor-SU(3)-symmetry breaking in terms of the current-quark masses. Moreover, we study the quark-distribution functions, derived from the fragmentation ones with the Drell-Yan-Levi relation. Numerical results are evaluated to higher Q^2 by the DGLAP evolution and compared with the empirical data. The ratios between the relevant valance quark-distribution functions are also discussed. It turns out that the present results are in relatively good agreement with available data and other theoretical estimations.
description: 13 pages, 16 figures
Mimosa orbignyana Barneby
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa
Mimosa orbignyana

description: 31. Mimosa orbignyana Barneby
 This species has remained poorly understood, known only from the type collection (díOrbigny 743 P, Bolivia, Chiquitos, August 1831), and apparently never re-collected since, until very recently. It was described by Barneby (1991) as ‘in unknown habitat, but to be sought in campo or cerrado at or above 700 m on the Sierra de Santiago, near 18° 30´S in south-east Santa Cruz, Boliviaí and has been considered endemic to Bolivia. Within the last two years, two collections, both from further north, on the Serranía Huanchaca have been made (J.R.I. Wood 26772, LPB, K, USZ, from the southwest part of the meseta of the Serranía Huanchaca in the Noel Kempf National Park in Bolivia, and L. Borges 787, UB, from the southern end of the Huanchaca range in neighbouring Mato Grosso in Brazil, where the range is known as the Serra do Ricardo Franco). However, despite extensive fieldwork in areas where d’Orbigny is likely to have visited in ‘Chiquitos’, no material matching this species has been re-collected from any of these areas. This is perhaps surprising, given that M. orbignyana forms a substantial shrub to 2 m height, multi-stemmed from the base, resprouting after fire from an underground woody root system that is much thicker than the above-ground stems, and with conspicuous 1–1.2 m tall efoliate pseudoracemes of bright pink flowers (Figs. 6 & 7). Barneby (1991) placed M. orbignyana in his ser. Setosae of sect. Habbasia and indicated likely affinities to M. riedelii Benth. from the Chapada dos Guimar„es in Mato Grosso and M. aguapeia Barneby from the Serra do Aguapei also in Mato Grosso. These overall affinities are confirmed by analysis of a trnD -trnT sequence of M. orbignyana as sister to a clade comprising ser. Setosae and ser. Pachycarpae (clade O in Simon et al. (2011)) plus M. corynadenia (Fig. 1). Although no sequence data are available yet for M. riedelii and M. aguapeia, the discovery of M. orbignyana in the Serranía Huanchaca confirms Barneby’s notion that these three potentially closely allied species occupy disjunct ranges on these ancient sandstone chapadas around the periphery of the upper Rio Paraguay basin.
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 216, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
Strong to ultra-strong coherent coupling measurements in a YIG/cavity system at room temperature
Creators: name: Bourcin, Guillaume
name: Bourhill, Jeremy
name: Vlaminck, Vincent
name: Castel, Vincent
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present an experimental study of the strong to ultra-strong coupling regimes at room temperature in frequency-reconfigurable 3D re-entrant cavities coupled with a YIG slab. The observed coupling rate, defined as the ratio of the coupling strength to the cavity frequency of interest, ranges from 12% to 59%. We show that certain considerations must be taken into account when analyzing the polaritonic branches of a cavity spintronic device where the RF field is highly focused in the magnetic material. Our observations are in excellent agreement with electromagnetic finite element simulations in the frequency domain.
description: 19 pages, 12 figures
The optically unbiased GRB host (TOUGH) survey. III. Redshift distribution
Creators: name: Jakobsson, P.
name: Hjorth, J.
name: Malesani, D.
name: Chapman, R.
name: Fynbo, J. P. U.
name: Tanvir, N. R.
name: Milvang-Jensen, B.
name: Vreeswijk, P. M.
name: Letawe, G.
name: Starling, R. L. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present 10 new gamma-ray burst (GRB) redshifts and another five redshift limits based on host galaxy spectroscopy obtained as part of a large program conducted at the Very Large Telescope (VLT). The redshifts span the range 0.345 < z < 2.54. Three of our measurements revise incorrect values from the literature. The homogeneous host sample researched here consists of 69 hosts that originally had a redshift completeness of 55% (with 38 out of 69 hosts having redshifts considered secure). Our project, including VLT/X-shooter observations reported elsewhere, increases this fraction to 77% (53/69), making the survey the most comprehensive in terms of redshift completeness of any sample to the full Swift depth, analyzed to date. We present the cumulative redshift distribution and derive a conservative, yet small, associated uncertainty. We constrain the fraction of Swift GRBs at high redshift to a maximum of 14% (5%) for z > 6 (z > 7). The mean redshift of the host sample is assessed to be > 2.2, with the 10 new redshifts reducing it significantly. Using this more complete sample, we confirm previous findings that the GRB rate at high redshift (z > 3) appears to be in excess of predictions based on assumptions that it should follow conventional determinations of the star formation history of the universe, combined with an estimate of its likely metallicity dependence. This suggests that either star formation at high redshifts has been significantly underestimated, for example due to a dominant contribution from faint, undetected galaxies, or that GRB production is enhanced in the conditions of early star formation, beyond that usually ascribed to lower metallicity.
description: 12 pages, 19 figures. ApJ, in press