cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lois De Comportement Des Matériaux Utilisés Dans Les Contacts Électriques Pour Application « Flip Chip ».
Creators: name: MERCIER David
Publisher: name: Zenodo
Year: 2014
Subjects: loi de comportement
nanoindentation
microinsertion
poinçon plat
mécanique du contact
contact électrique
Aluminium PVD
Alumine ALD
Nickel ECD
Alumine native
films minces
multicouche
fissuration
simulations en éléments finis

description: Soutenance de thèse de doctorat présentée par David MERCIER, lundi 25 Novembre 2013. Thèse dirigée par Yves Bréchet (SIMaP) et encadrée par Vincent Mandrillon (CEA-LETI) et Marc Verdier (SIMaP).

Dans le cadre de l’intégration « 3D », une technologie d’assemblage par report de puces sur tranche de Silicium (« flip chip ») reposant sur un procédé de microinsertion a été développée ces dernières années. Cette technologie est basée principalement sur la mise en contact par thermocompression, de réseaux de (micro)inserts en Nickel ECD, avec des plots de connexions métalliques en Al(Cu). Au cours de ce travail, un scénario de formation du contact entre un unique microinsert de Nickel rugueux et un film mince d’Aluminium lisse, prenant en compte la présence d’Alumine native à l’interface de contact, est proposé pour une gamme de pressions allant du MPa au GPa. L’analyse du contact métal-oxyde-métal se base essentiellement sur la fissuration de l’oxyde natif suivie de l’extrusion du métal au travers des fissures, et nécessite d’établir au préalable les lois de comportement des matériaux mis en jeu à partir d’essais de nanoindentation instrumentée couplés à des simulations numériques. Enfin, la mesure de l’évolution de la résistance électrique de contact en fonction de la force appliquée à l’aide de dispositifs expérimentaux originaux, permet de mettre en évidence les différents mécanismes de formation du contact métallique lors du procédé de microinsertion.
Matrix models for irregular conformal blocks and Argyres-Douglas theories
Creators: name: Nishinaka, Takahiro
name: Rim, Chaiho
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: As regular conformal blocks describe the N=2 superconformal gauge theories in four dimensions, irregular conformal blocks are expected to reproduce the instanton partition functions of the Argyres-Douglas theories. In this paper, we construct matrix models which reproduce the irregular conformal conformal blocks of the Liouville theory on sphere, by taking a colliding limit of the Penner-type matrix models. The resulting matrix models have not only logarithmic terms but also rational terms in the potential. We also discuss their relation to the Argyres-Douglas type theories.
description: 42 pages, 2 figures; v2: minor corrections; v3: minor corrections, added the second paragraph in section 6
Rolf A. Stucky, Ras Shamra / Leukos Limen. Die nach-ugaritische Besiedlung von Ras Shamra
Creators: name: Niemeyer, Hans Georg
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Rolf A. Stucky, Ras Shamra / Leukos Limen. Die nach-ugaritische Besiedlung von Ras Shamra. Mission archeologique de Ras Shamra 1. Institut Frangais d’Archeologie du Proche-Orient, Bibliotheque Archeologique et Historique 110. Editions Paul Geuthner, Paris 1983. 185 Seiten, 3 Abbildungen im Text, 87 Tafeln, 3 Faltpläne
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
Johannes Kollwitz (†) und Helga Herdejürgen, Die Sarkophage der westlichen Gebiete des Imperium Romanum 2. Die Ravennatischen Sarkophage
Creators: name: Koch, Guntram
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Johannes Kollwitz (†) und Helga Herdejürgen, Die Sarkophage der westlichen Gebiete des Imperium Romanum 2. Die Ravennatischen Sarkophage. Die antiken Sarkophagreliefs 8. Gebr. Mann Verlag, Berlin 1979. 184 Seiten, 92 Tafeln
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
Reduced regulator dependence of neutron-matter predictions with chiral interactions
Creators: name: Coraggio, L.
name: Holt, J. W.
name: Itaco, N.
name: Machleidt, R.
name: Sammarruca, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the energy per particle in infinite neutron matter perturbatively using chiral N3LO two-body potentials plus N2LO three-body forces. The cutoff dependence of the predictions is investigated by employing chiral interactions with different regulators. We find that the inclusion of three-nucleon forces, which are consistent with the applied two-nucleon interaction, leads to a strongly reduced regulator dependence of the results.
description: 7 pages, 8 figures, 1 table, to be published in Physical Review C
Le rôle du capital social dans la promotion de la croissance économique : mise en œuvre en Afrique Subsaharienne
Creators: name: ETOGO NYAGA, YVES PATRICE
name: BILKISSOU, HADJARA
Publisher: name: Zenodo
Year: 2025
Subjects: Capital Social ; Croissance Économique ; Afrique Subsaharienne ; Accès au service de santé ; Qualité des institutions.

description: L’objectif de cet article est de faire une analyse du rôle du capital social sur la promotion de la croissance économique en Afrique Subsaharienne. Pour ce faire, nous avons utilisé les GMM (Méthode des Moments Généralisés) en panel dynamique pour examiner la validité du lien entre le capital social et la croissance économique sur une période allant de 2003 à 2023. Les principaux résultats obtenus montrent de façon globale que le capital social affecte positivement la croissance économique en Afrique Subsaharienne. De façon spécifique, les résultats obtenus montrent que les canaux de transmission du capital social affectent négativement la croissance économique dans les pays en voies de développement moins avancés. Dans les pays en voies de développement avancés par contre, ces canaux affectent positivement la croissance économique. Nos résultats soulignent ainsi l’importance d’améliorer d’accès au service de santé et à la qualité des institutions pour les pays en développement n’ayant pas de grandes capacités dans la formation des médecins de qualités et de mettre l’accent sur la qualité des institutions dont ils en manquent cruellement d’expertises en matières.
Two-dimensional Potts antiferromagnets with a phase transition at arbitrarily large q
Creators: name: Huang, Yuan
name: Chen, Kun
name: Deng, Youjin
name: Jacobsen, Jesper Lykke
name: Kotecký, Roman
name: Salas, Jesús
name: Sokal, Alan D.
name: Swart, Jan M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We exhibit infinite families of two-dimensional lattices (some of which are triangulations or quadrangulations of the plane) on which the q-state Potts antiferromagnet has a finite-temperature phase transition at arbitrarily large values of q. This unexpected result is proven rigorously by using a Peierls argument to measure the entropic advantage of sublattice long-range order. Additional numerical data are obtained using transfer matrices, Monte Carlo simulation, and a high-precision graph-theoretic method.
description: RevTeX, 5 pages, includes 10 Postscript figures
Joachim Ganzert, Das Kenotaph für Gaius Caesar in Limyra
Creators: name: Kovacsovics, Wilfried K.
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Joachim Ganzert, Das Kenotaph für Gaius Caesar in Limyra. Mit Beiträgen von Mathilde Grünewald und Peter Herz. Istanbuler Forschungen 35. Verlag Ernst Wasmuth, Tübingen 1984. 212 Seiten, 58 Textzeichnungen, 32 Tafeln und 22 Beilagen
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
Proposed Rabi-Kondo Correlated State in a Laser-Driven Semiconductor Quantum Dot
Creators: name: Sbierski, B.
name: Hanl, M.
name: Weichselbaum, A.
name: Tureci, H. E.
name: Goldstein, M.
name: Glazman, L. I.
name: von Delft, J.
name: Imamoglu, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin exchange between a single-electron charged quantum dot and itinerant electrons leads to an emergence of Kondo correlations. When the quantum dot is driven resonantly by weak laser light, the resulting emission spectrum allows for a direct probe of these correlations. In the opposite limit of vanishing exchange interaction and strong laser drive, the quantum dot exhibits coherent oscillations between the single-spin and optically excited states. Here, we show that the interplay between strong exchange and non-perturbative laser coupling leads to the formation of a new nonequilibrium quantum-correlated state, characterized by the emergence of a laser-induced secondary spin screening cloud, and examine the implications for the emission spectrum.
Rational curves on \bar{M}_g and K3 surfaces
Creators: name: Benzo, Luca
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J28, 14H10 (Primary) 14D06, 14D15 (Secondary)

description: Let $(S,L)$ be a smooth primitively polarized K3 surface of genus $g$ and $f:X \rightarrow \mathbb{P}^1$ the fibration defined by a linear pencil in $|L|$. For $f$ general and $g \geq 7$, we work out the splitting type of the locally free sheaf $Ψ^{*}_f T_{\overline{M}_g}$, where $Ψ_f$ is the modular morphism associated to $f$. We show that this splitting type encodes the fundamental geometrical information attached to Mukai's projection map $\mathcal{P}_g \rightarrow \overline{\mathcal{M}}_g$, where $\mathcal{P}_g$ is the stack parameterizing pairs $(S,C)$ with $(S,L)$ as above and $C \in |L|$ a stable curve. Moreover, we work out conditions on a fibration $f$ to induce a modular morphism $Ψ_f$ such that the normal sheaf $N_{Ψ_f}$ is locally free.
description: published version, revisions in the exposition, minor mistakes corrected
Propagation of fronts in the Fisher-Kolmogorov equation with spatially varying diffusion
Creators: name: Curtis, Christopher W.
name: Bortz, David M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K57, 35C07

description: The propagation of fronts in the Fisher-Kolmogorov equation with spatially varying diffusion coefficients is studied. Using coordinate changes, WKB approximations, and multiple scales analysis, we provide an analytic framework that describes propagation of the front up to the minimum of the diffusion coefficient. We also present results showing the behavior of the front after it passes the minimum. In each case, we show that standard traveling coordinate frames do not properly describe front propagation. Lastly, we provide numerical simulations to support our analysis and to show, that around the minimum, the motion of the front is arrested on asymptotically significant timescales.
description: 8 pages, 5 figures
Signatures of topological phase transitions in mesoscopic superconducting rings
Creators: name: Pientka, Falko
name: Romito, Alessandro
name: Duckheim, Mathias
name: Oreg, Yuval
name: von Oppen, Felix
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate Josephson currents in mesoscopic rings with a weak link which are in or near a topological superconducting phase. As a paradigmatic example, we consider the Kitaev model of a spinless p-wave superconductor in one dimension, emphasizing how this model emerges from more realistic settings based on semiconductor nanowires. We show that the flux periodicity of the Josephson current provides signatures of the topological phase transition and the emergence of Majorana fermions situated on both sides of the weak link even when fermion parity is not a good quantum number. In large rings, the Majorana fermions hybridize only across the weak link. In this case, the Josephson current is h/e periodic in the flux threading the loop when fermion parity is a good quantum number but reverts to the more conventional h/2e periodicity in the presence of fermion-parity changing relaxation processes. In mesoscopic rings, the Majorana fermions also hybridize through their overlap in the interior of the superconducting ring. We find that in the topological superconducting phase, this gives rise to an h/e-periodic contribution even when fermion parity is not conserved and that this contribution exhibits a peak near the topological phase transition. This signature of the topological phase transition is robust to the effects of disorder. As a byproduct, we find that close to the topological phase transition, disorder drives the system deeper into the topological phase. This is in stark contrast to the known behavior far from the phase transition, where disorder tends to suppress the topological phase.
description: 14 pages, 9 figures, minor changes in the text, published version
Tunable diffusion of magnetic particles in a quasi-one-dimensional channel
Creators: name: Lucena, D.
name: Ferreira, W. P.
name: Munarin, F. F.
name: Farias, G. A.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The diffusion of a system of ferromagnetic dipoles confined in a quasi-one-dimensional parabolic trap is studied using Brownian dynamics simulations. We show that the dynamics of the system is tunable by an in-plane external homogeneous magnetic field. For a strong applied magnetic field, we find that the mobility of the system, the exponent of diffusion and the crossover time among different diffusion regimes can be tuned by the orientation of the magnetic field. For weak magnetic fields, the exponent of diffusion in the subdiffusive regime is independent of the orientation of the external field.
description: 9 pages, 13 figures, to appear in Phys. Rev. E (2013)
Microtearing modes at the top of the pedestal
Creators: name: Dickinson, D.
name: Roach, C. M.
name: Saarelma, S.
name: Scannell, R.
name: Kirk, A.
name: Wilson, H. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Microtearing modes (MTMs) are unstable in the shallow gradient region just inside the top of the pedestal in the spherical tokamak experiment MAST, and may play an important role in the pedestal evolution. The linear properties of these instabilities are compared with MTMs deeper inside the core, and further detailed investigations expose the basic drive mechanism. MTMs near the MAST pedestal top are not well described by existing theories. In particular the growth rate of the dominant edge MTM does not peak at a finite collision frequency, as frequently reported for MTMs further into the core. Our study suggests that the edge MTM is driven by a collisionless trapped particle mechanism that is sensitive to magnetic drifts. This drive is enhanced in the outer region of MAST by a high magnetic shear and a high trapped particle fraction. Observations of similar modes on conventional aspect ratio devices suggests this drive mechanism may be somewhat ubiquitous towards the edge of current day and future hot tokamaks.
description: 14 pages, 10 figures (21 unique graphics)
Large liquidity expansion of super-hedging costs
Creators: name: Possamaï, Dylan
name: Touzi, Nizar
name: Soner, H. Mete
Publisher: name: arXiv
Year: 2012
Subjects: subject: Pricing of Securities (q-fin.PR)
subject: Analysis of PDEs (math.AP)
subject: FOS: Economics and business
subject: FOS: Mathematics

description: We consider a financial market with liquidity cost as in Çetin, Jarrow and Protter [2004], where the supply function $S^ε(s,ν)$ depends on a parameter $ε\geq 0$ with $S^0(s,ν)=s$ corresponding to the perfect liquid situation. Using the PDE characterization of Çetin, Soner and Touzi [2010] of the super-hedging cost of an option written on such a stock, we provide a Taylor expansion of the super-hedging cost in powers of $ε$. In particular, we explicitly compute the first term in the expansion for a European Call option and give bounds for the order of the expansion for a European Digital Option.
Electronic and magnetic properties of zigzag graphene nanoribbons on the (111) surface of Cu, Ag and Au
Creators: name: Li, Yan
name: Zhang, Wei
name: Morgenstern, Markus
name: Mazzarello, Riccardo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We have carried out an ab initio study of the structural, electronic and magnetic properties of zigzag graphene nanoribbons on Cu(111), Ag(111) and Au(111). Both, H-free and H-terminated nanoribbons are considered revealing that the nanoribbons invariably possess edge states when deposited on these surfaces. In spite of this, they do not exhibit a significant magnetization at the edge, with the exception of H-terminated nanoribbons on Au(111), whose zero-temperature magnetic properties are comparable to those of free-standing nanoribbons. These results are explained by the different hybridization between the graphene 2p orbitals and those of the substrates and, for some models, by the sizable charge transfer between the surface and the nanoribbon. Interestingly, H-free nanoribbons on Au(111) and Ag(111) exhibit two main peaks in the local density of states around the Fermi energy, which originate from different states and, thus, do not indicate edge magnetism.
description: 5pages, 3figures
Analysis of astrometric catalogues with vector spherical harmonics
Creators: name: Mignard, Francois
name: Klioner, Sergei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Comparison of stellar catalogues with position and proper motion components using a decomposition on a set of orthogonal vector spherical harmonics. We show the theoretical and practical advantages of this technique as a result of invariance properties and the independence of the decomposition from a prior model. We describe the mathematical principles used to perform the spectral decomposition, evaluate the level of significance of the multipolar components and examine the transformation properties under space rotation. The principles are illustrated with a characterisation of the systematic effects in the FK5 catalogue compared to Hipparcos and with an application to the extraction of the rotation and dipole acceleration in the astrometric solution of QSOs expected from Gaia.
description: accepted for publication in Astronomy & Astrophysics
Open-Access-Repositorien In Den Deutschen Bundesländern. 2014 Census On Open Access Repositories In Germany, Austria And Switzerland
Creators: name: Vierkant, Paul
name: Kindling, Maxi
Publisher: name: Zenodo
Year: 2014
Subjects: Open Access
Open Access Repository
Open Access Repositories
Germany
Bundesländer
Deutschland
Census
Repository Size
Disciplinary Repository
Institutional Repository

description: Der 2014 Census on Open Access Repositories in Germany,

Austria and Switzerland (2014 Census) ist eine Studie zur

Repositorienlandschaft in den D-A-CH-Ländern.

Im 2014 Census werden Open-Access-Repositorien (OAR)

unter verschiedenen Aspekten wie Größe, Software, Metadatenqualität

sowie Mehrwertdienste etc. untersucht.

Durch die Darstellung des Status quo und der Best Practices

von OAR sollen RepositorienmanagerInnen bei der Optimierung

ihrer Dienste unterstützt werden. Dieses Poster zeigt einen

Ausschnitt aus dem 2014 Census anhand der deutschen

Bundesländer und in gesamtdeutscher Sicht mit dem Fokus

auf die Größe und Typen von Repositorien sowie ihre

betreibenden Einrichtungen.
description: http://www.oarr.org
Most Valuable Open Access Repositories In Germany
Creators: name: Vierkant, Paul
name: Kindling, Maxi
Publisher: name: Zenodo
Year: 2014
Subjects: Open Access
Open Access Repository
Open Access Repositories
Germany
Deutschland
Census
Open Access Repository Ranking
Institutional Repository
Disciplinary Repository

description: What makes a good open access publication repository next to the scientific quality and impact of its content? The assumption that lies behind the metric of this ranking (see criteria and scores in the right column) is that the quality of an open access repository is the sum of its characteristics, services and commitments being of value to the user, (harvesting) service providers and the open access movement as a whole. Based on 2014 Census of Open Access Repositories in Germany, Austria and Switzerland [1] data that has been categorized for this ranking into General Information, Usability, Value-added Services, Metadata, Interoperability and Community. The metric is a first sketch that tries to take up the challenge of finding a proper definition of what is a high quality open access repository. This metric is not meant to be a final metric and needs future iterations based on the feedback of the repository manager community. The development of such an open metric together with the community is openness and transparency at its best.

The upcoming project Open Access Repository Ranking [2] will present what is visualized on this poster in a continious way. The idea of this ranking is to provide the community with an overview of what is best practice and how this can be achieved. The incentives to improve a service by taking up small steps eventually will lead to an overall improvement of the open access repository landscape.

[1] For the research data of the 2014 Census see:  http://doi.org/10.5281/zenodo.10734

[2]   For the ranking metric see: www.repositoryranking.org
description: www.repositoryranking.org www.oarr.org
Suppression of collision-induced dephasing by periodic, erratic, or noisy driving
Creators: name: Khripkov, Christine
name: Vardi, Amichay
name: Cohen, Doron
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We compare different driving scenarios for controlling the loss of single particle coherence of an initially coherent preparation in the vicinity of the hyperbolic instability of the two-mode bose-Hubbard model. In particular we contrast the quantum Zeno suppression of decoherence by broad-band erratic or noisy driving, with the Kapitza effect obtained for high frequency periodic monochromatic driving.
description: 6 pages, 3 figures
Lasso and probabilistic inequalities for multivariate point processes
Creators: name: Hansen, Niels Richard
name: Reynaud-Bouret, Patricia
name: Rivoirard, Vincent
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Due to its low computational cost, Lasso is an attractive regularization method for high-dimensional statistical settings. In this paper, we consider multivariate counting processes depending on an unknown function parameter to be estimated by linear combinations of a fixed dictionary. To select coefficients, we propose an adaptive $\ell_1$-penalization methodology, where data-driven weights of the penalty are derived from new Bernstein type inequalities for martingales. Oracle inequalities are established under assumptions on the Gram matrix of the dictionary. Nonasymptotic probabilistic results for multivariate Hawkes processes are proven, which allows us to check these assumptions by considering general dictionaries based on histograms, Fourier or wavelet bases. Motivated by problems of neuronal activity inference, we finally carry out a simulation study for multivariate Hawkes processes and compare our methodology with the adaptive Lasso procedure proposed by Zou in (J. Amer. Statist. Assoc. 101 (2006) 1418-1429). We observe an excellent behavior of our procedure. We rely on theoretical aspects for the essential question of tuning our methodology. Unlike adaptive Lasso of (J. Amer. Statist. Assoc. 101 (2006) 1418-1429), our tuning procedure is proven to be robust with respect to all the parameters of the problem, revealing its potential for concrete purposes, in particular in neuroscience.
description: Published at http://dx.doi.org/10.3150/13-BEJ562 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Heat bounds and the blowtorch theorem
Creators: name: Maes, Christian
name: Netocny, Karel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study driven systems with possible population inversion and we give optimal bounds on the relative occupations in terms of released heat. A precise meaning to Landauer's blowtorch theorem (1975) is obtained stating that nonequilibrium occupations are essentially modified by kinetic effects. Towards very low temperatures we apply a Freidlin-Wentzel type analysis for continuous time Markov jump processes. It leads to a definition of dominant states in terms of both heat and escape rates.
description: 11 pages; v2: minor changes, 1 reference added
Symplectic modules over Colombeau-generalized numbers
Creators: name: Konjik, Sanja
name: Hoermann, Guenther
name: Kunzinger, Michael
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 15A63, 15A18, 15A21, 46F30

description: We study symplectic linear algebra over the ring $\Rt$ of Colombeau generalized numbers. Due to the algebraic properties of $\Rt$ it is possible to preserve a number of central results of classical symplectic linear algebra. In particular, we construct symplectic bases for any symplectic form on a free $\Rt$-module of finite rank. Further, we consider the general problem of eigenvalues for matrices over $\Kt$ ($\K=\R$ or $\C$) and derive normal forms for Hermitian and skew-symmetric matrices. Our investigations are motivated by applications in non-smooth symplectic geometry and the theory of Fourier integral operators with non-smooth symbols.
description: Some typos corrected, proof of Th. 3.3 corrected
Type 1 AGN at low z. III. The optical narrow line ratios
Creators: name: Stern, Jonathan
name: Laor, Ari
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the optical narrow line ratios in an SDSS based sample of 3,175 broad Ha selected type 1 AGN, and explore their positions in the BPT diagrams as a function of the AGN and the host properties. We find the following: 1. The luminosities of all measured narrow lines (Ha, Hb, [OIII], [NII], [SII], [OI]) show a Baldwin relation relative to the broad Ha luminosity L_bHa, with slopes in the range of 0.53-0.72. 2. About 20% of the type 1 AGN reside within the `Composite' and `SF' regions of the BPT diagrams. These objects also show excess narrow Ha and UV luminosities, for their L_bHa, consistent with contribution from star formation which dominates the narrow lines emission, as expected from their positions in the BPT diagrams. 3. The type 1 which reside within the AGN region in the BPT diagrams, are offset to lower [SII]/Ha and [NII]/Ha luminosity ratios, compared to type 2 AGN. This offset is a selection effect, related to the lower AGN/host luminosity selection of the type 2 AGN selected from the SDSS galaxy sample. 4. The [NII]/Ha and [NII]/[SII] ratios in type 1 AGN increase with the host mass, as expected if the mass-metallicity relation of quiescent galaxies holds for the AGN narrow line region. 5. The broad lines optical FeII is higher for a higher [NII]/Ha, at a fixed L_Bol and Eddington ratio L/L_Edd. This suggests that the broad line region metallicity is also related to the host mass. 6. The fraction of AGN which are LINERs increases sharply with decreasing L/L_Edd. This fraction is the same for type 1 and type 2 AGN. 7. The BPT position is unaffected by the amount of dust extinction of the optical-UV continuum, which suggests the extincting dust resides on scales larger than the NLR.
description: 23 pages, 15 figures; Accepted for publication in MNRAS; Sections 6 and 9.1 were revised, and section 6.1.3 was added. Figures 8 and 12 were revised. Complete versions of tables 1 and 2 can be found at http://physics.technion.ac.il/~stern/PaperData/Type1AGN3/
A Euclid style algorithm for MacMahon's partition analysis
Creators: name: Xin, Guoce
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05-04 (Primary), 05A15 (secondary), 52B99

description: Solutions to a linear Diophantine system, or lattice points in a rational convex polytope, are important concepts in algebraic combinatorics and computational geometry. The enumeration problem is fundamental and has been well studied, because it has many applications in various fields of mathematics. In algebraic combinatorics, MacMahon's partition analysis has become a general approach for linear Diophantine system related problems. Many algorithms have been developed, but "bottlenecks" always arise when dealing with complex problems. While in computational geometry, Barvinok's important result asserts the existence of a polynomial time algorithm when the dimension is fixed. However, the implementation by the LattE package of De Loera et. al. does not perform well in many situations. By combining excellent ideas in the two fields, we generalize Barvinok's result by giving a polynomial time algorithm for MacMahon's partition analysis in a suitable condition. We also present an elementary Euclid style algorithm, which might not be polynomial but is easy to implement and performs well. As applications, we contribute the generating series for magic squares of order 6.
description: 28 pages, some modification, add the link to the Maple package CTEuclid
Geometric simulation of locally optimal tool paths in three-axis milling
Creators: name: Szilvási-Nagy, Márta
name: Mátyási, Gyula
name: Béla, Szilvia
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Geometry (cs.CG)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.2; J.2
subject: 65D18, 62P30

description: The most important aim in tool path generation methods is to increase the machining efficiency by minimizing the total length of tool paths while the error is kept under a prescribed tolerance. This can be achieved by determining the moving direction of the cutting tool such that the machined stripe is the widest. From a technical point of view it is recommended that the angle between the tool axis and the surface normal does not change too much along the tool path in order to ensure even abrasion of the tool. In this paper a mathematical method for tool path generation in 3-axis milling is presented, which considers these requirements by combining the features of isophotic curves and principal curvatures. It calculates the proposed moving direction of the tool at each point of the surface. The proposed direction depends on the measurement of the tool and on the curvature values of the surface. For triangulated surfaces a new local offset computation method is presented, which is suitable also for detecting tool collision with the target surface and self intersection in the offset mesh.
description: Submitted to Journal for Geometry and Graphics (2012)
Input and output singularities for parallel manipulators
Creators: name: Amirinezhad, SV
name: Donelan, Peter
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: Uncategorized

description: We develop a differential-geometric approach to kinematic modelling for manipulators which provides a framework for analysing singularities for forward and inverse kinematics via input and output mappings defined on the manipulator’s configuration space.
Queues and risk models with simultaneous arrivals
Creators: name: Badila, E. S.
name: Boxma, O. J.
name: Resing, J. A. C.
name: Winands, E. M. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We focus on a particular connection between queueing and risk models in a multi-dimensional setting. We first consider the joint workload process in a queueing model with parallel queues and simultaneous arrivals at the queues. For the case that the service times are ordered (from largest in the first queue to smallest in the last queue) we obtain the Laplace-Stieltjes transform of the joint stationary workload distribution. Using a multivariate duality argument between queueing and risk models, this also gives the Laplace transform of the survival probability of all books in a multivariate risk model with simultaneous claim arrivals and the same ordering between claim sizes. Other features of the paper include a stochastic decomposition result for the workload vector, and an outline how the two-dimensional risk model with a general two-dimensional claim size distribution (hence without ordering of claim sizes) is related to a known Riemann boundary value problem.
H. Jassemin (†), A. Vallée, Registres du Trésor des chartes. Tome II: Règne des fils de Philippe le Bel. Deuxième partie: Règne de Charles IV le Bel. Inventaire analytique. Refondu par J. Guerout, 1999
Creators: name: Angers, Denise
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 30 Nr. 1 (2003)
Auctor et auctoritas. Invention et conformisme dans l'écriture médiévale. Actes du colloque de Saint-Quentin-en-Yvelines (14–16 juin 1999), réunis sous la direction de M. Zimmermann, 2001
Creators: name: Heinzelmann, Martin
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 30 Nr. 1 (2003)
Doped Mott Insulators in (111) Bilayers of Perovskite Transition-Metal Oxides with a Strong Spin-Orbit Coupling
Creators: name: Okamoto, Satoshi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The electronic properties of Mott insulators realized in (111) bilayers of perovskite transition-metal oxides are studied. The low-energy effective Hamiltonians for such Mott insulators are derived in the presence of a strong spin-orbit coupling. These models are characterized by the antiferromagnetic Heisenberg interaction and the anisotropic interaction whose form depends on the $d$ orbital occupancy. From exact diagonalization analyses on finite clusters, the ground state phase diagrams are derived, including a Kitaev spin liquid phase in a narrow parameter regime for $t_{2g}$ systems. Slave-boson mean-field analyses indicate the possibility of novel superconducting states induced by carrier doping into the Mott-insulating parent systems, suggesting the present model systems as unique playgrounds for studying correlation-induced novel phenomena. Possible experimental realizations are also discussed.
description: Main text: 5 pages, 3 figures. Supplementary material: 5 pages, 1 figures
D. A. Bell, The Cult of the Nation in France. Inventing Nationalism, 1680-1800, 2001
Creators: name: Wagner, Michael
Publisher: name: Francia
Year: 2019

description: D. A. Bell, The Cult of the Nation in France. Inventing Nationalism, 1680-1800, 2001 (M. Wagner)
description: Francia, Bd. 30 Nr. 2 (2003)
The Kala in Сhampa decoration art (Proposing solutions to attract visitors to Vietnam's ancient arts)
Creators: name: Фан Куог Ань
Publisher: name: Modern oriental studies
Year: 2023
Subjects: Кала
древнее искусство
Чампа
пластическое искусство
декорации
технологии
Kala
ancient art
Champa
shaping/plastic art
decoration
technology

description: Архитектурно-декоративное скульптурное искусство Чампа во Вьетнаме — одно из трех известных искусств Юго-Восточной Азии (Ява, Ангкор и Чампа), находящееся под влиянием индийскои культуры, но скульптура Чампа обладает своими уникальными ценностями благодаря сочетанию региональных особенностей с религиями коренных народов. Обычно используемые изображения на архитектурных произведениях, статуях, рельефах, обозначают индийских богов и танцоров, защитников, линга — иони, животных с конечностями на ногах (Кала, Макара, Нандин, Нага, Гаруда...). С помощью решении для привлечения отечественных и иностранных туристов, интересующихся древним искусством Вьетнама, а также продвижения практических предметов в школах, обучающих искусству и дизаину. Исследуя изображение Калы на декоративных скульптурахЧампы, в статье предлагаются решения для привлечения отечественных и иностранных туристов, интересующихся древним вьетнамским искусством, а также для продвижения их в качестве практических предметов в школах искусства и дизайна сегодня.
description: Champa architectural and decorative sculptural arts of Vietnam is one of the three famous arts in Southeast Asia (Java, Angkor and Champa), under the influence of Indian culture but Champa sculpture has had their own unique values thanks to the combination of regional characteristics with indigenous religions. Commonly used images on architectural works, statues, reliefs, stand for Indian gods and dancers, protectors, linga — yoni, legend animals (Kala, Makara, Nandin, Naga, Garuda…). Through the solutions to attract domestic and foreign tourists interested in Vietnamese ancient art as well as promote in practical subjects at schools training art and design. Researching on the image of Kala on decorative sculptures of Champa, the article proposes solutions to attract domestic and foreign tourists interested in Vietnamese ancient art as well as promote them into practical subjects at art and design schools today.
L. Châtellier (sous la dir. de), Religions en transition dans la seconde moitié du XVIIIe siècle, 2000
Creators: name: Ammerich, Hans
Publisher: name: Francia
Year: 2019

description: L. Châtellier (sous la dir. de), Religions en transition dans la seconde moitié du XVIIIe siècle, 2000 (H. Ammerich)
description: Francia, Bd. 30 Nr. 2 (2003)
Checkerboard to Stripe Charge Ordering Transition in TbBaFe2O5
Creators: name: Pratt, D. K.
name: Chang, S.
name: Tain, W.
name: Taskin, A. A.
name: Ando, Yoichi
name: Zarestky, J. L.
name: Kreyssig, A.
name: Goldman, A. I.
name: McQueeney, R. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A combined neutron and x-ray diffraction study of TbBaFe2O5 reveals a rare checkerboard to charge ordering transition. TbBaFe2O5 is a mixed valent compound where Fe2+/Fe3+ ions are known to arrange into a stripe charge-ordered state below TV = 291 K, that consists of alternating Fe2+/Fe3+ stripes in the basal plane running along the b direction. Our measurements reveal that the stripe charge-ordering is preceded by a checkerboard charge-ordered phase between TV < T < T* = 308 K. The checkerboard ordering is stabilized by inter-site coulomb interactions which give way to a stripe state stabilized by orbital ordering.
description: 5 pages, 5 figures
Two 'b's in the Beehive: The Discovery of the First Hot Jupiters in an Open Cluster
Creators: name: Quinn, S. N.
name: White, R. J.
name: Latham, D. W.
name: Buchhave, L. A.
name: Cantrell, J. R.
name: Dahm, S. E.
name: Fürész, G.
name: Szentgyorgyi, A. H.
name: Geary, J. C.
name: Torres, G.
name: Bieryla, A.
name: Berlind, P.
name: Calkins, M. C.
name: Esquerdo, G. A.
name: Stefanik, R. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present the discovery of two giant planets orbiting stars in Praesepe (also known as the Beehive Cluster). These are the first known hot Jupiters in an open cluster and the only planets known to orbit Sun-like, main-sequence stars in a cluster. The planets are detected from Doppler shifted radial velocities; line bisector spans and activity indices show no correlation with orbital phase, confirming the variations are caused by planetary companions. Pr0201b orbits a V=10.52 late F dwarf with a period of 4.4264 +/- 0.0070 days and has a minimum mass of 0.540 +/- 0.039 Mjup, and Pr0211b orbits a V=12.06 late G dwarf with a period of 2.1451 +/- 0.0012 days and has a minimum mass of 1.844 +/- 0.064 Mjup. The detection of 2 planets among 53 single members surveyed establishes a lower limit on the hot Jupiter frequency of 3.8 (+5.0)(-2.4) % in this metal-rich open cluster. Given the precisely known age of the cluster, this discovery also demonstrates that, in at least 2 cases, giant planet migration occurred within 600 Myr after formation. As we endeavor to learn more about the frequency and formation history of planets, environments with well-determined properties -- such as open clusters like Praesepe -- may provide essential clues to this end.
description: 5 pages, 3 tables, 2 figures. Published in ApJ Letters
Implementering Af Orcid I Danmark
Creators: name: Elbæk, Mikael K.
name: Melchiorsen, Poul
Publisher: name: Zenodo
Year: 2014
Subjects: ORCID
Research infrastructure
Denmark
National ORCID consortium
CRIS
Pure

description: The poster (in Danish) presents the implementation of ORCID in Denmark. The DEFF funded project running from March 2014 - March 2016 have established a national ORCID consortium representing six out of the eight Danish Universities and two consortiums of all university colleges and cultural research institutions.

The project has developed an ORCID website (www.orcid.dk) that contains information about ORCID in Danish (and English) tailored to the national Danish setting. The website also provides a toolkit for ORCID implementers containing guidelines, marketing materials including flyers, posters and slides.

In order to increase the incentives for the project partners to implement ORCID and motivate their researchers to register their ORCIDs in the local CRIS's (based on Pure) the project partners funding is partly based on ambitious goals of reaching 40 %, 60 % and 80 % of their FTE researchers.
description: This poster was presented at the yearly Danish Research Library Association conference 18. - 19. September 2014.

Pictures in this poster are CC-SA from Rebecca Bryant  / Creative Commons License: by nc sa Available from: http://vimeo.com/97150912
description: {"references": ["Bryant, Rebecca (2014). What is ORCID? Available from http://vimeo.com/97150912"]}
Explainable AI in Usable Privacy and Security: Challenges and Opportunities
Creators: name: Freiberger, Vincent
name: Fleig, Arthur
name: Buchmann, Erik
Publisher: name: Zenodo
Year: 2025
Subjects: Usable Privacy
LLMs
Explainability

description: Large Language Models (LLMs) are increasingly being used for automated evaluations and explaining them. However, concerns about explanation quality, consistency, and hallucinations remain open research challenges, particularly in high-stakes contexts like privacy and security where user trust and decision-making are at stake. In this paper, we investigate these issues in the context of PRISMe, an interactive privacy policy assessment tool that leverages LLMs to evaluate and explain website privacy policies. Based on a prior user study with 22 participants, we identify key concerns regarding LLM judgment transparency, consistency, and faithfulness, as well as variations in user preferences for explanation detail and engagement. We discuss potential strategies to mitigate these concerns, including structured evaluation criteria, uncertainty estimation, and retrieval-augmented generation (RAG). We identify a need for adaptive explanation strategies tailored to different user profiles for LLM-as-a-judge. Our goal is to showcase the application area of usable privacy and security to be promising for Human-Centered Explainable AI (HCXAI) to make an impact.
Physics of three dimensional bosonic topological insulators: Surface Deconfined Criticality and Quantized Magnetoelectric Effect
Creators: name: Vishwanath, Ashvin
name: Senthil, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss physical properties of `integer' topological phases of bosons in D=3+1 dimensions, protected by internal symmetries like time reversal and/or charge conservation. These phases invoke interactions in a fundamental way but do not possess topological order and are bosonic analogs of free fermion topological insulators and superconductors. While a formal cohomology based classification of such states was recently discovered, their physical properties remain mysterious. Here we develop a field theoretic description of several of these states and show that they possess unusual surface states, which if gapped, must either break the underlying symmetry, or develop topological order. In the latter case, symmetries are implemented in a way that is forbidden in a strictly two dimensional theory. While this is the usual fate of the surface states, exotic gapless states can also be realized. For example, tuning parameters can naturally lead to a deconfined quantum critical point or, in other situations, a fully symmetric vortex metal phase. We discuss cases where the topological phases are characterized by quantized magnetoelectric response θ, which, somewhat surprisingly, is an odd multiple of 2π. Two different surface theories are shown to capture these phenomena - the first is a nonlinear sigma model with a topological term. The second invokes vortices on the surface that transform under a projective representation of the symmetry group. A bulk field theory consistent with these properties is identified, which is a multicomponent `BF' theory supplemented, crucially, with a topological term. A possible topological phase characterized by the thermal analog of the magnetoelectric effect is also discussed.
description: 25 pages+ 3 pages Appendices, 3 figures. Introduction rewritten for clarity, minor technical changes and additional details of surface topological order added
Cosmology with the largest galaxy cluster surveys: Going beyond Fisher matrix forecasts
Creators: name: Khedekar, Satej
name: Majumdar, Subhabrata
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We make the first detailed MCMC likelihood study of cosmological constraints that are expected from some of the largest, ongoing and proposed, cluster surveys in different wave-bands and compare the estimates to the prevalent Fisher matrix forecasts. Mock catalogs of cluster counts expected from the surveys -- eROSITA, WFXT, RCS2, DES and Planck, along with a mock dataset of follow-up mass calibrations are analyzed for this purpose. A fair agreement between MCMC and Fisher results is found only in the case of minimal models. However, for many cases, the marginalized constraints obtained from Fisher and MCMC methods can differ by factors of 30-100%. The discrepancy can be alarmingly large for a time dependent dark energy equation of state, w(a); the Fisher methods are seen to under-estimate the constraints by as much as a factor of 4--5. Typically, Fisher estimates become more and more inappropriate as we move away from LCDM, to a constant-w dark energy to varying-w dark energy cosmologies. Fisher analysis, also, predicts incorrect parameter degeneracies. From the point of mass-calibration uncertainties, a high value of unknown scatter about the mean mass-observable relation, and its redshift dependence, is seen to have large degeneracies with the cosmological parameters sigma_8 and w(a) and can degrade the cosmological constraints considerably. We find that the addition of mass-calibrated cluster datasets can improve dark energy and sigma_8 constraints by factors of 2--3 from what can be obtained compared to CMB+SNe+BAO only. Since, details of future cluster surveys are still being planned, we emphasize that optimal survey design must be done using MCMC analysis rather than Fisher forecasting. [abridged]
description: 26 pages, 13 figures, 7 tables, accepted for publication in JCAP