cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Review of Anisotropic Terahertz Material Response
Creators: name: Arikawa, T.
name: Zhang, Q.
name: Ren, L.
name: Belyanin, A. A.
name: Kono, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Anisotropy is ubiquitous in solids and enhanced in low-dimensional materials. In response to an electromagnetic wave, anisotropic absorptive and refractive properties result in dichroic and birefringent optical phenomena both in the linear and nonlinear optics regimes. Such material properties have led to a diverse array of useful polarization components in the visible and near-infrared, but mature technology is non-existent in the terahertz (THz). Here, we review several novel types of anisotropic material responses observed in the THz frequency range, including both linear and circular anisotropy, which have long-term implications for the development of THz polarization optics. We start with the extreme linear anisotropy of macroscopically aligned carbon nanotubes, arising from their intrinsically anisotropic dynamic conductivity. Magnetically induced anisotropy will then be reviewed, including the giant Faraday effects observed in semiconductors, semimetals, and two-dimensional electron systems.
description: 26 pages, 11 figures
Testing 24 micron and Infrared Luminosity as Star Formation Tracers for Galactic Star Forming Regions
Creators: name: Vutisalchavakul, Nalin
name: Evans, Neal J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have tested some relations for star formation rates used in extra-galactic studies for regions within the Galaxy. In nearby molecular clouds, where the IMF is not fully-sampled, the dust emission at 24 micron greatly underestimates star formation rates (by a factor of 100 on average) when compared to star formation rates determined from counting YSOs. The total infrared emission does no better. In contrast, the total far-infrared method agrees within a factor of 2 on average with star formation rates based on radio continuum emission for massive, dense clumps that are forming enough massive stars to have the total infrared luminosity exceed 10^4.5 Lsun. The total infrared and 24 micron also agree well with each other for both nearby, low-mass star forming regions and the massive, dense clumps regions.
Integral and Series Representations of the Dirac Delta Function
Creators: name: Li, Y. T.
name: Wong, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary: 46F99, Secondary: 33C10, 33C45

description: Mathematical justifications are given for several integral and series representations of the Dirac delta function which appear in the physics literature. These include integrals of products of Airy functions, and of Coulomb wave functions; they also include series of products of Laguerre polynomials and of spherical harmonics. The methods used are essentially based on the asymptotic behavior of these special functions.
description: 19 pages, 1 figure
Carex fimbriata Schkuhr
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. fimbriata Schkuhr (C. hispidula Gaudin) Cat. 371 und 432. 3: Neuere Beobachtungen in der Gegend von Zermatt: Gagenhaupt, 2550m (Braun-Blanquet 1919);Gomergrat,bis3000m (idem1919);beimSchwarzseegegenGalen (Kunz^938);Lych^nbretter, häufig(Thellung 1922,Becherer1944); unter der Gandegghütte, 3015m (Thellung^2); beider'Gand^gghütte,3029m'(Becherer 1944,1945)undoberhalb:mehrfachbis3030und3050m (ideml945).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Investigating the interplay between gaming disorder and functional impairments in professional esports gaming
Creators: name: Pontes, Halley M.
name: Rumpf, Hans-Jürgen
name: Selak, Špela
name: Montag, Christian
Publisher: name: Universität Ulm
Year: 2024
Subjects: subject: Gaming Disorder
subject: World Health Organization
subject: Functional impairments
subject: Esports
subject: Professional gaming
subject: DDC 150 / Psychology

description: Abstract The relationship between Gaming Disorder (GD) and the experience of functional impairments has received considerable theoretical attention in the recent past and current diagnostic approaches underscore the centrality of functional impairments as a requirement for GD diagnosis. However, there is limited empirical evidence illuminating the interplay between GD and functional impairments, particularly among specific vulnerable groups. The present study seeks to bridge this gap by investigating an English-speaking sample ( N  = 5198) comprising an age- and gender-matched group of Professional Gamers (PG, n  = 2599) and Non-Professional Gamers (NPG, n  = 2599) sub-sampled from a larger sample of 192,260 individuals. The results revealed that PG were at a greater risk for GD compared to NPG as the prevalence rate of GD among PG (3.31%) was significantly higher and almost doubled that of NPG (1.73%), with PG further exhibiting higher overall GD symptom-load and weekly time spent gaming compared to NPG. Furthermore, PG reported experiencing significantly higher frequency of gaming-related functional impairments compared to NPG, with the in particular affected areas for both PG and NPG being ‘ school and/or work ’, ‘ physical health ’, and ‘ family ’, with other key differences emerging in relation to other outcomes. Overall, the present findings show that not only GD symptom-load but also some functional impairment is higher in PG compared to NPG which highlights the need to develop and support prevention and intervention strategies for this at-risk population.
Orbital migration of giant planets induced by gravitationally unstable gaps: the effect of planet mass
Creators: name: Cloutier, Ryan
name: Lin, Min-Kai
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: It has been suggested that long-period giant planets, such as HD 95086b and HR 8799bcde, may have formed through gravitational instability of protoplanetary discs. However, self-gravitating disc-satellite interaction can lead to the formation of a gravitationally unstable gap. Such an instability significantly affects the orbital migration of gap-opening perturbers in massive discs. We use 2D hydrodynamical simulations to examine the role of planet mass on the gravitational stability of gaps and its impact on orbital migration. We consider giant planets with planet-to-star mass ratio q=0.0003 to q=0.003, in a self-gravitating disc with disc-to-star mass ratio M_d/M_*=0.08, aspect ratio h=0.05, and Keplerian Toomre parameter Q = 1.5 at 2.5 times the planet's initial orbital radius. Fixed-orbit simulations show that all planet masses we consider open gravitationally unstable gaps, but the instability is stronger and develops sooner with increasing planet mass. The disc-on-planet torques typically become more positive with increasing planet mass. In freely-migrating simulations, we observe faster outward migration with increasing planet mass, but only for planet masses capable of opening unstable gaps early on. For q=0.0003, the planet undergoes rapid inward type III migration before it can open a gap. For q=0.0013 we find it is possible to balance the tendency for inward migration by the positive torques due to an unstable gap, but only for a few 10's of orbital periods. We find the unstable outer gap edge can trigger outward type III migration, sending the planet to twice its initial orbital radius on dynamical timescales. This triggered type III migration may be a way of bringing giant planets to large orbital distances. On the other hand, our results also imply gap-opening is not a sufficient condition for the in situ formation of giant planets on wide orbits through disc fragmentation.
description: 13 pages, 15 figures, accepted by MNRAS. Audio/video commentary available at http://youtu.be/5VCt2NdKFeg
Neue therapeutische Strategien für die Apoptose-Induktion im hepatozellulären Karzinom
Creators: name: Wahl, Kristin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Hepatocellular carcinoma
subject: apoptosis
subject: Hepatozelluläres Karzinom (HCC)
subject: TRAIL
subject: Apoptose
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
PAC-Bayesian Learning and Domain Adaptation
Creators: name: Germain, Pascal
name: Habrard, Amaury
name: Laviolette, François
name: Morvant, Emilie
Publisher: name: arXiv
Year: 2012
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In machine learning, Domain Adaptation (DA) arises when the distribution gen- erating the test (target) data differs from the one generating the learning (source) data. It is well known that DA is an hard task even under strong assumptions, among which the covariate-shift where the source and target distributions diverge only in their marginals, i.e. they have the same labeling function. Another popular approach is to consider an hypothesis class that moves closer the two distributions while implying a low-error for both tasks. This is a VC-dim approach that restricts the complexity of an hypothesis class in order to get good generalization. Instead, we propose a PAC-Bayesian approach that seeks for suitable weights to be given to each hypothesis in order to build a majority vote. We prove a new DA bound in the PAC-Bayesian context. This leads us to design the first DA-PAC-Bayesian algorithm based on the minimization of the proposed bound. Doing so, we seek for a ρ-weighted majority vote that takes into account a trade-off between three quantities. The first two quantities being, as usual in the PAC-Bayesian approach, (a) the complexity of the majority vote (measured by a Kullback-Leibler divergence) and (b) its empirical risk (measured by the ρ-average errors on the source sample). The third quantity is (c) the capacity of the majority vote to distinguish some structural difference between the source and target samples.
description: https://sites.google.com/site/multitradeoffs2012/
Vibration performance of a flow energy converter behind two side-by-side cylinders
Creators: name: Rasani, Mohammad Rasidi
name: Moria, Hazim
name: Beer, Michael
name: Ariffin, Ahmad Kamal
Publisher: name: Basel : MDPI
Year: 2019
Subjects: subject: side-by-side cylinders
subject: fluid–structure interaction
subject: vortex shedding
subject: wake interference
subject: energy harvesting
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Flow-induced vibrations of a flexible cantilever plate, placed in various positions behind two side-by-side cylinders, were computationally investigated to determine optimal location for wake-excited energy harvesters. In the present study, the cylinders of equal diameter D were fixed at center-to-center gap ratio of T/D = 1.7 and immersed in sub-critical flow of Reynold number ReD = 10, 000. A three-dimensional Navier-Stokes flow solver in an Arbitrary Lagrangian-Eulerian (ALE) description was closely coupled to a non-linear finite element structural solver that was used to model the dynamics of a composite piezoelectric plate. The cantilever plate was fixed at several positions between 0.5 < x/D < 1.5 and -0.85 < y/D < 0.85 measured from the center gap between cylinders, and their flow-induced oscillations were compiled and analyzed. The results indicate that flexible plates located at the centerline between the cylinder pairs experience the lowest mean amplitude of oscillation. Maximum overall amplitude in oscillation is predicted when flexible plates are located in the intermediate off-center region downstream of both cylinders. Present findings indicate potential to further maximize wake-induced energy harvesting plates by exploiting their favorable positioning in the wake region behind two side-by-side cylinders. © 2019 by the authors.
Joint Iterative Power Adjustment and Interference Suppression Algorithms for Cooperative DS-CDMA Networks
Creators: name: de Lamare, R. C.
name: Li, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This work presents joint iterative power allocation and interference suppression algorithms for DS-CDMA networks which employ multiple relays and the amplify and forward cooperation strategy. We propose a joint constrained optimization framework that considers the allocation of power levels across the relays subject to individual and global power constraints and the design of linear receivers for interference suppression. We derive constrained minimum mean-squared error (MMSE) expressions for the parameter vectors that determine the optimal power levels across the relays and the parameters of the linear receivers. In order to solve the proposed optimization problems efficiently, we develop recursive least squares (RLS) algorithms for adaptive joint iterative power allocation, and receiver and channel parameter estimation. Simulation results show that the proposed algorithms obtain significant gains in performance and capacity over existing schemes.
description: 2 figures. arXiv admin note: substantial text overlap with arXiv:1301.0094, arXiv:1301.5912, arXiv:1304.1935
First international comparison of fountain primary frequency standards via a long distance optical fiber link
Creators: name: Guéna, J.
name: Weyers, S.
name: Abgrall, M.
name: Grebing, C.
name: Gerginov, V.
name: Rosenbusch, P.
name: Bize, Sebastien
name: Lipphardt, B.
name: Denker, H.
name: Quintin, N.
name: Raupach, S.M.F.
name: Nicolodi, D.
name: Stefani, F.
name: Chiodo, N.
name: Koke, S.
name: Kuhl, A.
name: Wiotte, F.
name: Meynadier, F.
name: Camisard, E.
name: Chardonnet, C.
name: Le Coq, Y.
name: Lours, M.
name: Santarelli, G.
name: Amy-Klein, A.
name: Le Targat, R.
name: Lopez, O.
name: Pottie, P.-E.
name: Grosche, G.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2017
Subjects: subject: Atomic fountain clocks
subject: International fountain clock comparison
subject: Optical fiber frequency transfer
subject: Clocks
subject: Fibers
subject: Frequency standards
subject: Ground state
subject: Natural frequencies
subject: Optical fibers
subject: Optical materials
subject: Rubidium
subject: Satellite links
subject: Standards
subject: Clock comparisons
subject: Frequency transfer
subject: International atomic time (TAI)
subject: Optical frequency standard
subject: Physikalisch-technische bundesanstalt
subject: Primary frequency standard
subject: Redefinition of the seconds
subject: Atomic clocks
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: We report on the first comparison of distant caesium fountain primary frequency standards (PFSs) via an optical fiber link. The 1415 km long optical link connects two PFSs at LNESYRTE (Laboratoire National de métrologie et d'Essais-SYstème de Références Temps- Espace) in Paris (France) with two at PTB (Physikalisch-Technische Bundesanstalt) in Braunschweig (Germany). For a long time, these PFSs have been major contributors to accuracy of the International Atomic Time (TAI), with stated accuracies of around 3×10-16. They have also been the references for a number of absolute measurements of clock transition frequencies in various optical frequency standards in view of a future redefinition of the second. The phase coherent optical frequency transfer via a stabilized telecom fiber link enables far better resolution than any other means of frequency transfer based on satellite links. The agreement for each pair of distant fountains compared is well within the combined uncertainty of a few 10-16 for all the comparisons, which fully supports the stated PFSs' uncertainties. The comparison also includes a rubidium fountain frequency standard participating in the steering of TAI and enables a new absolute determination of the 87Rb ground state hyperfine transition frequency with an uncertainty of 3.1×10-16.
title: Disparities in Sentencing: The Impact of Race, Gender and Mental Health
Creators: name: Paige, Briana
Publisher: name: Old Dominion University Libraries
Year: 2019

description: The purpose of this study is to examine the effect that race and mental health play on sentence length in the United States. Mentally ill people are gradually being confined in prisons across the United States and there is an absence of literature that looks at the interaction of race and mental health in regards to sentencing. The focal concerns perspective provides the theoretical framework that guides this study. Multiple linear regressions were used to examine both state and federal prison inmates to examine the effect race, mental health and other extra-legal factors play on sentence length. Results show that the concepts of focal concerns perspective play no role in sentence length in the federal data. However, in the state data, nine out of the ten the variables used to test this theory were statistically significant. Results of the multiple linear regression show that although there are sentencing disparities in regards to race and mental health separately, the interaction of the two are only significant in the federal data.
Wissen auf einen Klick
Creators: name: Heller, Lambert
name: Tullney, Marco
Publisher: name: Stuttgart : Raabe, Fachverl. für Wiss.-Information
Year: 2014
Subjects: subject: open access
subject: journals
subject: scholarly communication
subject: Open Access
subject: Zeitschriften
subject: Wissenschaftskommunikation
subject: Wissenschaftliche Zeitschrift
subject: Open Access
subject: Bibliometrie
subject: Elektronisches Publizieren
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft

description: Früher schrieben Forscherinnen und Forscher dicke Bücher. Heute kommt neues Wissen vor allem durch Aufsätze in Fachzeitschriften in die Welt – immer häufiger auch online. Das verheißt neue Chancen: Kolleginnen und Kollegen können die Texte leichter finden, schneller zitieren und verlinken. Worauf ist beim digitalen Publizieren zu achten?
Radiative Beta Decay for Studies of CP Violation
Creators: name: Gardner, Susan
name: He, Daheng
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A triple-product correlation in the radiative β-decay rate of neutrons or of nuclei, characterized by the kinematic variable ξ\equiv (\vec{l}_ν\times\vec{l}_e)\cdot\vec{k}, where, e.g., n(p) \to p(p') + e^-(l_e) + \barν_e(l_ν) + γ(k), can be generated by the pseudo-Chern-Simons term found by Harvey, Hill, and Hill as a consequence of the baryon vector current anomaly and SU(2)_{L} x U(1)_Y gauge invariance at low energies. The correlation probes the imaginary part of its coupling constant, so that its observation at anticipated levels of sensitivity would reflect the presence of sources of CP violation beyond the standard model. We compute the size of the asymmetry in n\to p e^- \barν_e γdecay in chiral effective theory, compare it with the computed background from standard-model final-state interactions, and consider the new physics scenarios which would be limited by its experimental study.
description: 9 pages, 1 figure
Carex firma Mygind
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. firma Mygind (C. rigidaSchrank) Cat. 369. Die Angaben von den Alpen von Mordes, von der Montagne deFully und vom Chavalard sind nach GAMS irrig. l: Salanfe (Briquet); Tanneverge (Coquoz); Vieux-Emosson (Briquet). - 3:ObRandagegendie Domhütte,2200m (Huber); Mattmark (J.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Time-dependent density functional theory for many-electron systems interacting with cavity photons
Creators: name: Tokatly, I. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Time-dependent (current) density functional theory for many-electron systems strongly coupled to quantized electromagnetic modes of a microcavity is proposed. It is shown that the electron-photon wave function is a unique functional of the electronic (current) density and the expectation values of photonic coordinates. The Kohn-Sham system is constructed, which allows to calculate the above basic variables by solving selfconsistent equations for noninteracting particles. We suggest possible approximations for the exchange-correlation potentials and discuss implications of this approach for the theory of open quantum systems.
description: 4+ pages
Resonant-Plasmon-Assisted Subwavelength Ablation by a Femtosecond Oscillator
Creators: name: Shi, Liping
name: Iwan, Bianca
name: Ripault, Quentin
name: Andrade, Jose R.C.
name: Han, Seunghwoi
name: Kim, Hyunwoong
name: Boutu, Willem
name: Franz, Dominik
name: Nicolas, Rana
name: Heidenblut, Torsten
name: Reinhardt, Carsten
name: Bastiaens, Bert
name: Nagy, Tamas
name: Babushkin, Ihar
name: Morgner, Uwe
name: Kim, Seung-Woo
name: Steinmeyer, Günter
name: Merdji, Hamed
name: Kovačev, Milutin
Publisher: name: American Physical Society
Year: 2018
Subjects: subject: subwavelength optical nanoantenna
subject: nanoscale ablation
subject: Ti:sapphire oscillator
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We experimentally demonstrate the use of subwavelength optical nanoantennas to assist a direct nanoscale ablation using the ultralow fluence of a Ti:sapphire oscillator through the excitation of surface plasmon waves. The mechanism is attributed to nonthermal transient unbonding and electrostatic ablation, which is triggered by the surface plasmon-enhanced field electron emission and acceleration in vacuum. We show that the electron-driven ablation appears for both nanoscale metallic as well as dielectric materials. While the observed surface plasmon-enhanced local ablation may limit the applications of nanostructured surfaces in extreme nonlinear nanophotonics, it, nevertheless, also provides a method for nanomachining, manipulation, and modification of nanoscale materials. Collateral thermal damage to the antenna structure can be suitably avoided, and nonlinear conversion processes can be stabilized by a dielectric overcoating of the antenna. © 2018 American Physical Society.
title: COSMO Technical Report No. 34: COsmo Towards Ensembles at the Km-scale IN Our countries (COTEKINO), Priority Project final report
Creators: name: Marsigli, C.
name: Arpagaus, M.
name: Astakhova, E.
name: Bonanno, R.
name: Duniec, G.
name: Keane, R.
name: Interewicz, W.
name: Kohlhepp, R.
name: Leuenberger, D.
name: Loglisci, N.
name: Machulskaya, E.
name: Alferov, D.
name: Mazur, A.
name: Maurer, V.
name: Montani, A.
name: Rivin, G.
name: Rozinkina, I.
name: Torrisi, L.
name: Walser, A.
Publisher: name: COSMO Consortium for Small-Scale Modelling
Year: 2018

description: The Technical Reports are intended mainly for internal use within the COSMO group (COSMO = Consortium for Small Scale Modeling), but also to inform other groups on model changes and research activities. The purpose of the Technical Reports is 1. to document scientific research activities, 2. to document technical changes to the model system, 3. to give an overview on new components of the model system.
Buxus sempervirens Vill.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. sempervirens Vill. Cat. 370. Bis 3115m: Gornergrat bei Zermatt (Braun-Blanquet 1919); abwärts bis 1070m: Gondoschlucht bei der Casermetta (Becherer). Var.pumila Schur- 2:Montagne deFully (Wilczek, Garns).- 4:Stockhorn imBinntal (Bernoulli). Var.aurigerana Marcailhou-d'Aymeric - 3: Zermatt: Riffelalp-Gornergrat (Kneucker); Gorner- gletscher (Wilczek).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
title: COSMO Technical Report No. 35: The COSMO Priority Project CORSO Final Report
Creators: name: Rivin, G.
name: Rozinkina, I.
name: Astakhova, E.
name: Montani, A.
name: Alferov, D.
name: Arpagaus, M.
name: Blinov, D.
name: Bundel, A.
name: Chumakov, M.
name: Eckert, P.
name: Euripides, A.
name: Förstner, J.
name: Helmert, J.
name: Kazakova, E.
name: Kirsanov, A.
name: Kopeikin, V.
name: Kukanova, E.
name: Majewski, D.
name: Marsigli, C.
name: de Morsier, G.
name: Muravev, A.
name: Paccagnella, T.
name: Schättler, U.
name: Schraff, C.
name: Shatunova et al., M.
Publisher: name: COSMO Consortium for Small-Scale Modelling
Year: 2018

description: The Technical Reports are intended mainly for internal use within the COSMO group (COSMO = Consortium for Small Scale Modeling), but also to inform other groups on model changes and research activities. The purpose of the Technical Reports is 1. to document scientific research activities, 2. to document technical changes to the model system, 3. to give an overview on new components of the model system.
Beam extraction using non vacuum electron beam by reduced acceleration voltage
Creators: name: Hassel, T.
name: Klimov, G.
name: Beniyash, A.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2018
Subjects: subject: Acceleration
subject: Electric equipment protection
subject: Electron beams
subject: Electrons
subject: Laser applications
subject: Radiation protection
subject: Surface treatment
subject: Vacuum brazing
subject: X rays
subject: Acceleration voltages
subject: Electron beam emission
subject: High acceleration
subject: Institute of materials
subject: Penetration ability
subject: Robotic applications
subject: Surface heat treatment
subject: Weight reduction
subject: Electron beam brazing
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: One of the disadvantages of the non-vacuum electron beam (NVEB) systems is a high acceleration voltage, which leads to an increase of defence against X-ray radiation. Due to the reduced acceleration voltage. On the one hand, the size of the beam generator can be reduced, which leads to a significant weight reduction compared to the conventional EB technology, so that a robotic application comes in focus. On the other hand, the requirements for the X-ray protection are reduced because the penetration ability of the X-radiation decreases. For applications such as brazing, cladding and surface heat-treatment, by the low acceleration voltage non-vacuum electron beam (LAVNVEB) system is of great interest. Some of the first experiments on electron beam emission into the atmosphere with a low acceleration voltage (from 60kV and below) were carried out at an available LAVNVEB system at the Institute of Materials Science at the Leibniz University Hannover.
The Fulde-Ferrell-Larkin-Ovchinnikov state in pnictides
Creators: name: Ptok, Andrzej
name: Crivelli, Dawid
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Fe-based superconductors (FeSC) exhibit all the properties of systems that allow the formation of a superconducting phase with oscillating order parameter, called the Fulde--Ferrell--Larkin--Ovchinnikov (FFLO) phase. By the analysis of the Cooper pair susceptibility in two-band FeSC, such systems are shown to support the existence of a FFLO phase, regardless of the exhibited order parameter symmetry. We also show the state with nonzero Cooper pair momentum, in superconducting FeSC with $\sim \cos(k_{x}) \cdot \cos (k_{y})$ symmetry, to be the ground state of the system in a certain parameter range.
description: 8 pages, 4 figures Journal of Low Temperature Physics, (2013)
On the least prime represented by a positive-definite binary quadratic form
Creators: name: Gaudet, Louis Mayer
Publisher: name: No Publisher Supplied
Year: 2023

description: In this work, we address the question, "how large is the least prime p of the form p=x^2+Dy^2 relative to D?'' More generally, we study the least prime represented by a positive-definite binary quadratic form of prime discriminant D, and we prove a Linnik-type theorem: the least such prime is bounded by a constant times D^L for some large but explicit constant L>0. While such a result has been established before, our methods are significantly different and based on sieve theoretic machinery. In particular, other proofs of this result require deeper input from the zeros of class group L-functions, namely a log-free zero-density estimate and a quantitative form of the Deuring-Heilbronn phenomenon. By comparison, the only input we require from the zeros of these L-functions is a zero-free region of classical type. Along the way, we establish a couple of results that may be of independent interest: (1) a large sieve-type inequality for class group characters over almost-primes, and (2) an approximation result for values of L-functions by partial Euler products whose length is comparable (in the log scale) to the conductor of the L-function.
Multiphoton double ionization of Ar and Ne close to Threshold
Creators: name: Liu, Yunquan
name: Ye, Difa
name: Liu, Jie
name: Rudenko, A.
name: Tschuch, S.
name: Dürr, M.
name: Siegel, M.
name: Morgner, Uwe
name: Gong, Qihuang
name: Moshammer, R.
name: Ullrich, J.
Publisher: name: American Physical Society
Year: 2010
Subjects: subject: Anticorrelation
subject: Classical model
subject: Double ionization
subject: Electron momentum spectra
subject: Fs pulse
subject: Multiphotons
subject: Nonclassical dynamics
subject: Threshold intensity
subject: Two-electron momentum
subject: Algorithms
subject: Artificial intelligence
subject: Ionization
subject: Neon
subject: Particle detectors
subject: Three dimensional
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In kinematically complete studies we explore double ionization (DI) of Ne and Ar in the threshold regime (I>3×1013W/cm2) for 800 nm, 45 fs pulses. The basic differences are found in the two-electron momentum distributions-"correlation" (CO) for Ne and " anticorrelation" (ACO) for Ar-that can be partially explained theoretically within a 3D classical model including tunneling. Transverse electron momentum spectra provide insight into "Coulomb focusing" and point to correlated nonclassical dynamics. Finally, DI threshold intensities, CO as well as ACO regimes are predicted for both targets. © 2010 The American Physical Society.
Distributed MIMO coding scheme with low decoding complexity for future mobile TV broadcasting
Creators: name: Liu, Ming
name: Hélard, Maryline
name: Crussière, Matthieu
name: Hélard, Jean-François
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: A novel distributed space-time block code (STBC) for the next generation mobile TV broadcasting is proposed. The new code provides efficient performance within a wide range of power imbalance showing strong adaptivity to the single frequency network (SFN) broadcasting deployments. The new code outperforms existing STBCs with equivalent decoding complexity and approaches those with much higher complexities.
Dynamic Distance Measures on Spaces of Isospectral Mixed Quantum States
Creators: name: Andersson, Ole
name: Heydari, Hoshang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Distance measures are indispensable tools in quantum information processing and quantum computing. This since they can be used to quantify to what extent information is preserved, or altered, by quantum processes. In this paper we propose a new distance measure for mixed quantum states, that we call the dynamic distance measure, and show that it is a proper distance measure. The dynamic distance measure is defined in terms of a measurable quantity, which make it very suitable for applications. In a final section we compare the dynamical distance measure with the well-known Bures distance.
description: 8 pages, no figures
Large eddy simulation using the general circulation model ICON
Creators: name: Dipankar, Anurag
name: Stevens, Björn
name: Heinze, Rieke
name: Moseley, Christopher
name: Zängl, Günther
name: Giorgetta, Marco
name: Brdar, Slavko
Publisher: name: Hoboken : Blackwell Publishing Ltd
Year: 2015
Subjects: subject: climate prediction
subject: cloud topped boundary layer
subject: convective boundary layer
subject: large eddy simulation
subject: numerical weather forecast
subject: turbulence
subject: Atmospheric thermodynamics
subject: Boundary layer flow
subject: Boundary layers
subject: Forecasting
subject: Turbulence
subject: Weather forecasting
subject: Climate prediction
subject: Cloud-topped boundary layer
subject: Convective boundary layers
subject: Dry convective boundary layer
subject: Numerical weather forecasting
subject: Numerical weather forecasts
subject: Numerical weather prediction
subject: Planetary boundary layers
subject: Large eddy simulation
subject: cumulus
subject: general circulation model
subject: global climate
subject: model validation
subject: weather forecasting
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: ICON (ICOsahedral Nonhydrostatic) is a unified modeling system for global numerical weather prediction (NWP) and climate studies. Validation of its dynamical core against a test suite for numerical weather forecasting has been recently published by Zängl et al. (2014). In the present work, an extension of ICON is presented that enables it to perform as a large eddy simulation (LES) model. The details of the implementation of the LES turbulence scheme in ICON are explained and test cases are performed to validate it against two standard LES models. Despite the limitations that ICON inherits from being a unified modeling system, it performs well in capturing the mean flow characteristics and the turbulent statistics of two simulated flow configurations - one being a dry convective boundary layer and the other a cumulus-topped planetary boundary layer.
title: Now for the Science Bit: Implementing Community-based Learning in Chemistry
Creators: name: McDonnell, Claire M
name: Ennis, Patricia
name: Shoemaker, Leslie
Publisher: name: Technological University of Dublin
Year: 2011

description: Purpose – The purpose of this paper is to contribute to the understanding of student learning from community engagement by critically assessing the implementation of this pedagogical approach in the context of teaching and learning chemistry and also evaluating the role of personal development in student-community engagement.

Design/methodology/approach – A case study on the implementation since 2007 of community-based learning (also called service-learning) projects in an academic department in Ireland is presented. Analysis of assessment grades, student reflective accounts and evaluation questionnaires informs this work as does a recently completed self-assessment of our activities using Shumer’s Self-Assessment for Service Learning.

Findings – A marked improvement in student engagement and confidence and their appreciation of how their subject is applied in real-world situations is reported. Some difficulties arise however in relation to the level of critical thinking and self-awareness evident in reflective writing assignments as the students were generally not experienced in reflection on personal experiences. The extent to which it has been demonstrated that genuine community needs are being met is also an issue in some instances.

Originality/value – The paper describes some innovative practices as CBL is not well-established in the discipline concerned, chemistry, and it has also not often been applied to the benefit of small local businesses. A critical analysis of the process followed when CBL activities were implemented in an institution without an existing, well-established culture of applying this pedagogical approach is provided as this is a perspective not often explored in the literature.

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title: Методы прикладной статистики
Creators: name: ELS IPR BOOKS
Publisher: name: Издательство Владимирского государственного университета
Year: 2018

description: Представлены в обобщающем виде основные этапы комплексного анализа данных на основе многомерных методов математической статистики. Изложены теоретические аспекты прогнозирования временных рядов, наиболее часто используемых в экономической практике. Материал по каждой теме проиллюстрирован формулами и примерами подробного решения задач. В качестве аналитического инструмента моделирования используется статистический пакет STADIA. Адресовано студентам, обучающимся по направлениям подготовки 01.03.02 «Прикладная математика и информатика», 38.03.05 «Бизнес-информатика», 38.03.01 «Экономика», 02.04.01 «Математика и компьютерные науки», аспирантам и научным работникам, интересующимся задачами прикладной статистики. Рекомендовано для формирования профессиональных компетенций в соответствии с ФГОС ВО.
Improved Channel Estimation Methods based on PN sequence for TDS-OFDM
Creators: name: Liu, Ming
name: Crussière, Matthieu
name: Hélard, Jean-François
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: An accurate channel estimation is crucial for the novel time domain synchronous orthogonal frequency-division multiplexing (TDS-OFDM) scheme in which pseudo noise (PN) sequences serve as both guard intervals (GI) for OFDM data symbols and training sequences for synchronization/channel estimation. This paper studies the channel estimation method based on the cross-correlation of PN sequences. A theoretical analysis of this estimator is conducted and several improved estimators are then proposed to reduce the estimation error floor encountered by the PN-correlation-based estimator. It is shown through mathematical derivations and simulations that the new estimators approach or even achieve the Cramer-Rao bound.
MOST Observations of sigma Ori E: Challenging the Centrifugal Breakout Narrative
Creators: name: Townsend, R. H. D.
name: Rivinius, Th.
name: Rowe, J. F.
name: Moffat, A. F. J.
name: Matthews, J. M.
name: Bohlender, D.
name: Neiner, C.
name: Telting, J. H.
name: Guenther, D. B.
name: Kallinger, T.
name: Kuschnig, R.
name: Rucinski, S. M.
name: Sasselov, D.
name: Weiss, W. W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present results from three weeks' photometric monitoring of the magnetic helium-strong star sigma Ori E using the MOST microsatellite. The star's light curve is dominated by twice-per-rotation eclipse-like dimmings arising when magnetospheric clouds transit across and occult the stellar disk. However, no evidence is found for any abrupt centrifugal breakout of plasma from the magnetosphere, either in the residual flux or in the depths of the light minima. Motivated by this finding we compare the observationally inferred magnetospheric mass against that predicted by a breakout analysis. The large discrepancy between the values leads us to argue that centrifugal breakout does not play a significant role in establishing the magnetospheric mass budget of sigma Ori E.
description: 6 pages, 2 figures, accepted by the Astrophysical Journal
HTTP Mailbox - Asynchronous RESTful Communication
Creators: name: Alam, Sawood
name: Cartledge, Charles L.
name: Nelson, Michael L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Software Engineering (cs.SE)
subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences
subject: H.3.5

description: We describe HTTP Mailbox, a mechanism to enable RESTful HTTP communication in an asynchronous mode with a full range of HTTP methods otherwise unavailable to standard clients and servers. HTTP Mailbox allows for broadcast and multicast semantics via HTTP. We evaluate a reference implementation using ApacheBench (a server stress testing tool) demonstrating high throughput (on 1,000 concurrent requests) and a systemic error rate of 0.01%. Finally, we demonstrate our HTTP Mailbox implementation in a human assisted web preservation application called "Preserve Me".
description: 13 pages, 6 figures, 8 code blocks, 3 equations, and 3 tables
title: Geschichte der Stadt Mainz von K. A. Schaab, D. U. I. und Vizepräsident des Kreisgerichts zu Mainz. Erster Band. Mainz 1841. In Commission bei F. Kupferberg. 8°. 594 S.
Creators: name: Freudenberg, Johannes
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Carex flava L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. flava L. Cat. 369. Bis 2536m. Var. alpina Kneucker - l: Salanfe (Exk. Soc. Murith.); Emosson (desgl.). - 2:Alpen von Fully (Garns); Saillon (idem).- 3:Stellisee obZermatt, 2536m (Thellung 1922;Bestimmung unsicher). -4: Geisspfad (Binz) undHalsen (Becherer) imBinntal; Gletsch (Wilczek).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Algebraic Curve for a Cusped Wilson Line
Creators: name: Sizov, Grigory
name: Valatka, Saulius
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the classical limit of the recently obtained exact result for the anomalous dimension of a cusped Wilson line with the insertion of an operator with L units of R-charge at the cusp in planar N=4 SYM. The classical limit requires taking both the 't Hooft coupling and L to infinity. Since the formula for the cusp anomalous dimension involves determinants of size proportional to L, the classical limit requires a matrix model reformulation of the result. We construct such matrix model-like representation and find corresponding classical algebraic curve. Using this we derive the classical value of the cusp anomalous dimension and the 1-loop correction to it. We check our results against the energy of the classical solution and numerically by extrapolating from the quantum regime of finite L.
description: 15 pages, 2 figures
title: Haemochromatosis mutation analysis in a normal Irish population
Creators: name: Ryan, Fergus
name: Vaughan, Joseph
Publisher: name: Technological University of Dublin
Year: 2000

description: 187 Irish blood donors were examined for the presence of C282Y and H63D missense mutations using a multiplex PCR and restriction digest protocol. The allele frequency for C282Y was found to be 12.3% which is higher than reported in other studies and concurs that this mutation is of Celtic origin.
Record low ag paste consumption of 67.7 mg with dual print
Creators: name: Hannebauer, Helge
name: Dullweber, Thorsten
name: Falcon, Tom
name: Chen, Xiao
name: Brendel, Rolf
Publisher: name: Amsterdam : Elsevier
Year: 2013
Subjects: subject: Dual print
subject: Fine line printing
subject: Paste consumption
subject: Print-on-print
subject: Screen-printing
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We investigate and compare three different fine line printing techniques for the silver front side metallization of industrial-type silicon solar cells: single print, dual print and print-on-print. We obtain finger heights of 5.6 μm for single print, 9.5 μm for dual print and 15.1 μm for print-on-print as well as finger width between 46.2 μm and 61.3 μm. We process PERC solar cells with dual print and print-on-print. For the dual print, we test two different bus bar designs, a standard rectangular shaped bus bar and a segmented bus bar. The resulting PERC solar cells achieve conversion efficiencies of 19.8% for dual print and print-on-print. The dual print with segmented bus bar design reduces the Ag paste consumption to 67.7 mg, measured after printing prior to drying. To our knowledge, this is the lowest front side Ag paste consumption that has been reported so far. Additionally, we model optimum Ag finger width in dependence of electrical and geometrical parameters. We find that even when assuming very optimistic parameters, the optimum finger width of 26 μm is just a factor of two lower compared to the state of the art technology today.
Lift-off of free-standing layers in the kerfless porous silicon process
Creators: name: Kajari-Schröder, Sarah
name: Käsewieter, Jörg
name: Hensen, Jan
name: Brendel, Rolf
Publisher: name: Amsterdam : Elsevier
Year: 2013
Subjects: subject: Kerfless wafering
subject: Layer transfer
subject: Lift-off
subject: Porous silicon
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We discuss the lift-off of free-standing epitaxially grown silicon layers from the porous silicon (PSI) process, which is a kerfless wafering technology. The lift-off is a crucial step in the PSI cycle. A high-porosity layer serves as a mechanically weak layer for lift-off and consists of widely spaced silicon bridges with thicknesses of 40-100 nm. The low width leads to a 33-fold stress enhancement in the bridges, making them break when a force is applied while the epitaxial layer and the substrate remain intact. We perform the free-standing lift-off with a curved vacuum chuck. A vacuum pressure of 0.2 bar is sufficient for controlled peeling off of the 30-50 um thick silicon layers. We simulate the stresses and the displacements of the epitaxial layer in the lift-off process close to the first non-broken bridge. We demonstrate the defect-free lift-off of 8 of 9 of 9 × 9 cm2 layers from 6" substrates.
The Strategy of Discrimination between Flavors for Detection of Cosmogenic Neutrinos
Creators: name: Lai, Kwang-Chang
name: Chen, Chih-Ching
name: Chen, Pisin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a new method to identify flavors of ultra high energy cosmic neutrinos. Energy loss of leptons in matter provides important informations for the detection of neutrinos originated from high energy astrophysical sources. 50 years ago, Askaryan proposed to detect Cherenkov signals by radio wave from the negative charge excess of particle showers. The theory of Cherenkov pulses with Fraunhofer approximation was widely studied in the past two decades. However, at high energies or for high density materials, electromagnetic shower should be elongated due to the Landau-Pomeranchuck-Migdal (LPM) effect. As such the standard Fraunhofer approximation ceases to be valid when the distance between the shower and the detector becomes comparable with the shower length. We have performed Monte Carlo simulations recently to investigate this regime based on the finite-difference time-domain (FDTD) method, and modified time domain integration method. In this work, we adopt the deduced relationship between the radio signal and the cascade development profile to investigate its implication to lepton signatures. Our method provides a straightforward technique to identify the neutrino flavor through the detected Cherenkov signals.