cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Millisecond charge-parity fluctuations and induced decoherence in a superconducting qubit
Creators: name: Ristè, D.
name: Bultink, C. C.
name: Tiggelman, M. J.
name: Schouten, R. N.
name: Lehnert, K. W.
name: DiCarlo, L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quasiparticle excitations adversely affect the performance of superconducting devices in a wide range of applications. They limit the sensitivity of photon detectors in astronomy, the accuracy of current sources in metrology, the cooling power of micro-refrigerators, and could break the topological protection of Majorana qubits. In superconducting circuits for quantum information processing, tunneling of quasiparticles across Josephson junctions constitutes a decoherence mechanism. As relaxation and pure dephasing times of transmon-type charge qubits now reach 100 microseconds, understanding whether quasiparticle tunneling may already bottleneck coherence is of high interest. We integrate recent advances in qubit readout and feedback control in circuit quantum electrodynamics to perform the first real-time observation of quasiparticle tunneling in a transmon qubit. We demonstrate quasiparticle-tunneling contributions to qubit relaxation and pure dephasing in the millisecond range. Thus, quasiparticle tunneling will not limit coherence for at least one order of magnitude beyond the state of the art.
description: 5 pages, 4 figures, and Supplementary Information (5 figures)
Monoterpenhydroperoxide durch Dioxygenase-Katalyse : Identifizierung primärer und sekundärer Reaktionsprodukte
Creators: name: Lehnert, Nicole
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Pleurotus sapidus
subject: alpha-Pinen
subject: (+)-Car-3-en
subject: Dioxygenase
subject: Hydroperoxide
subject: Monoterpen
subject: Alpha-pinene
subject: (+)-car-3-ene
subject: hydroperoxides
subject: monoterpene
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Coherent quantum transport in disordered systems I: The influence of dephasing on the transport properties and absorption spectra on one-dimensional systems
Creators: name: Moix, Jeremy M.
name: Khasin, Michael
name: Cao, Jianshu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Excitonic transport in static disordered one dimensional systems is studied in the presence of thermal fluctuations that are described by the Haken-Strobl-Reineker model. For short times, non-diffusive behavior is observed that can be characterized as the free-particle dynamics in the Anderson localized system. Over longer time scales, the environment-induced dephasing is sufficient to overcome the Anderson localization caused by the disorder and allow for transport to occur which is always seen to be diffusive. In the limiting regimes of weak and strong dephasing quantum master equations are developed, and their respective scaling relations imply the existence of a maximum in the diffusion constant as a function of the dephasing rate that is confirmed numerically. In the weak dephasing regime, it is demonstrated that the diffusion constant is proportional to the square of the localization length which leads to a significant enhancement of the transport rate over the classical prediction. Finally, the influence of noise and disorder on the absorption spectrum is presented and its relationship to the transport properties is discussed.
description: 23 pages, 7 figures
A Roman box-shaped chape from Jadowniki Mokre (Lesser Poland) and similar finds from the Roman Empire and European Barbaricum
Creators: name: Biborski, Marcin
name: Grygiel, Michał
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: ...
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Elektrisches Verhalten von Maschinenelementen im Antriebsstrang
Creators: name: Furtmann, Alexander
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Bearing
subject: bearing currents
subject: gears
subject: voltage source inverters
subject: drive train
subject: power train
subject: film-thickness
subject: electrical stress
subject: common-mode voltage
subject: capacitive equivalent circuit
subject: Lager
subject: Lagerströme
subject: Getriebe
subject: Antriebsstrang
subject: elektrische Belastung
subject: Gleichtaktspannung
subject: Spannungszwischenkreisumrichter
subject: Schmierfilmdicke
subject: kapazitives Ersatzschaltbild
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Euphrasia tatarica F. E. L. Fischer
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E. tatarica F. E. L. Fischer (E. puberula Jordan) Cat. 280 (sub E. hirtella var. puberula). l: L'Epegnaz ob Evionnaz (F.); La Balmaz (Coquoz); Les Combasses bei Salvan (J.); unter Planajeur (Favarger);unter La Creuse (Coquoz);Ravoire (J.); La Forclaz (F.). - 2: Ob Wiler gegen Weissenried im Lötschental (Kummer). - 3: Mont-Chemin (Favrat); Val d'Anniviers (Favrat, Bernoulli, Schmid u. a.); Mattertal (Favrat, Bernoulli, Mlle Masson); Saastal zwischen Almagell und Furggstalden (Gyhr); Brig (Wilczek). - 3a: Gabi (Binz und Kilcher). - 4: Binntal, mehrfach (Gams, Schmid, Gyhr). Var. Coquoziana W. Becker - Vgl. Becker Lit. 1927a.- l: Mieville; Salvan; Les Marecottes; Le Tretien; Finhaut (alles: Coquoz); ob Martigny (J.). -3:Val de Bagnes(Wolf).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
On the Impact of Phase Noise on Active Cancellation in Wireless Full-Duplex
Creators: name: Sahai, Achaleshwar
name: Patel, Gaurav
name: Dick, Chris
name: Sabharwal, Ashutosh
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Recent experimental results have shown that full-duplex communication is possible for short-range communications. However, extending full-duplex to long-range communication remains a challenge, primarily due to residual self-interference even with a combination of passive suppression and active cancellation methods. In this paper, we investigate the root cause of performance bottlenecks in current full-duplex systems. We first classify all known full-duplex architectures based on how they compute their cancelling signal and where the cancelling signal is injected to cancel self-interference. Based on the classification, we analytically explain several published experimental results. The key bottleneck in current systems turns out to be the phase noise in the local oscillators in the transmit and receive chain of the full-duplex node. As a key by-product of our analysis, we propose signal models for wideband and MIMO full-duplex systems, capturing all the salient design parameters, and thus allowing future analytical development of advanced coding and signal design for full-duplex systems.
description: 35 pages, Submitted to IEEE Transactions on Vehicular Technology, Dec 2012
From the streets to the classroom: power analysis as a tool for critical pedagogy
Creators: name: Panayiotopoulos, Aggelos
name: LICHROU, MARIA
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Marketing
subject: FOS: Economics and business

description: We focus on a power analysis exercise used with undergraduate students to discuss the environmental, economic, and social crises as they are reflected in the conflict between the economy and the environment, and local resistance to mining industry development in a region of Northern Greece (Chalkidiki). A power analysis exercise is a tool, designed and used by (community) activist groups to help understand the terrain of struggle and the actors involved. The exercise was also combined with, and followed from a reflection by the students on their ideological/political position on a spectrum from free market to deep ecology. The power analysis exercise helped students engage with the critical content of the module, understand how the different approaches/positions of sustainable development can manifest themselves, what their implications are, go beyond the academic lingo and reflect on how these issues impact our lives, rethink their positioning beyond the customer/ manager dominant position.
Freight Traffic Assignment Methodology for Large-Scale Road-Rail Intermodal Networks
Creators: name: Uddin, Majbah
name: Huynh, Nathan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: A methodology is proposed for freight traffic assignment in large-scale road-rail intermodal networks. To obtain the user-equilibrium freight flows, a path-based assignment algorithm (gradient projection) was proposed. The developed methodology was tested on the U.S. intermodal network by using the 2007 freight demand for truck, rail, and road-rail intermodal from the Freight Analysis Framework, Version 3 (FAF3). The results indicate that the proposed methodology's projected flow pattern is similar to the FAF3 assignment. The proposed methodology can be used by transportation planners and decision makers to forecast freight flows and to evaluate strategic network expansion options.
l-facial edge colorings of graphs
Creators: name: Lužar, Borut
name: Mockovčiaková, Martina
name: Soták, Roman
name: Škrekovski, Riste
name: Šugerek, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: An l-facial edge coloring of a plane graph is a coloring of the edges such that any two edges at distance at most l on a boundary walk of some face receive distinct colors. It is conjectured that 3l + 1 colors suffice for an l-facial edge coloring of any plane graph. We prove that 7 colors suffice for a 2-facial edge coloring of any plane graph and therefore confirm the conjecture for l = 2.
Enzymatische Synthese oxyfunktionaler Kohlenwasserstoffe
Creators: name: Plagemann, Ina
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Oxyfunctionalization
subject: terpenoids
subject: Oxyfunktionalisierung
subject: Lipoxygenase
subject: Terpenoide
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Michelle Waldispühl, Schreibpraktiken und Schriftwissen in südgermanischen Runeninschriften: Zur Funktionalität epigraphischer Schriftverwendung
Creators: name: Bianchi, Marco
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Michelle Waldispühl, Schreibpraktiken und Schriftwissen in südgermanischen Runeninschriften: Zur Funktionalität epigraphischer Schriftverwendung. Medienwandel — Medienwechsel — Medienwissen Band 26. Chronos, Zürich 2013. € 52,—. ISBN 978-3-0340-1026-9. 408 Seiten, 134 Farbabbildungen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Verringerung der Dicke von Titanzink bei Dachdeckungen und Wandbekleidungen im Hochbau aufgrund atmosphärischer Korrosion : vergleichende Betrachtung der Ergebnisse aus den Untersuchungsverfahren -Dickenmessung mit der Ultraschall-Prüftechnik, -Ermittlung der Zinkfrachten im Niederschlag
Creators: name: Pohl, Wolf-Hagen
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Titanium zinc
subject: runoff rate
subject: ultrasonic measurement
subject: Titanzink
subject: Zinkfrachten
subject: Ultraschallmessungen
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: [no abstract]
Exoplanet Analog Observations of Earth from Galileo Disk-integrated Photometry
Creators: name: Strauss, Ryder H.
name: Robinson, Tyler D.
name: Trilling, David E.
name: Cummings, Ryan
name: Smith, Christopher J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Galileo spacecraft had distant encounters with Earth in 1990 and 1992. Limited Solid State Imager (SSI) data acquired during these encounters has been previously presented, but the majority of the data from these Earth flybys have not been presented in the literature. Observations of Earth taken from afar are both rare and directly relevant to the development of any future exo-Earth direct imaging mission. Here we present a pipeline that vets, calibrates, and measures the disk-integrated brightness of the Earth, in multiple filters, from the complete SSI data sets from both the 1990 and 1992 Galileo flybys. The result is over 1500 usable photometric measurements for Earth as an analog for an exoplanet. The 1990 data set includes full rotational lightcurves in six bandpasses spanning the optical range. The 1992 data set is more limited, with lightcurves only spanning 14 hr. Time-averaged photometry for both encounters is presented while variability and color are discussed relative to findings from NASA's EPOXI mission (which also provided photometric lighturves for Earth). The new Galileo/SSI data are used to further validate the Virtual Planetary Laboratory 3D spectral Earth model, which often serves as a stand-in for true disk-integrated observations of our planet. The revived Galileo/SSI data for Earth is a testament to the ability of NASA's Planetary Data System to maintain data over decades-long timescales. The disk-integrated products derived from these data add to a very short list of calibrated and published whole-disk observations of the Pale Blue Dot.
Die Nürnberger Fayencemanufaktur
Creators: name: Glase, Silvia
Publisher: name: KulturGut : aus der Forschung des Germanischen Nationalmuseums
Year: 2016

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 52 (2017): KulturGut: aus der Forschung des Germanischen Nationalmuseums
Waveless ships in the low speed limit: Results for multi-cornered hulls
Creators: name: Trinh, Philippe H.
name: Chapman, S. Jonathan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In the low-speed limit, a blunt ship modeled as two-dimensional semi-infinite body with a single corner can never be made waveless. This was the conclusion of the previous part of our work in Trinh et al. (2011), which focused on the Dagan & Tulin (1972) model of ship waves in the low speed limit. In this accompanying paper, we continue our investigations with the study of more general, piecewise-linear, or multi-cornered ships. The low-speed or low-Froude limit, coupled with techniques in exponential asymptotics allows us to derive explicit formulae relating the geometry of the hull to the form of the waves. Configurations with closely spaced corners present a non-trivial extension of the theory, and we present the general methodology for their study. Lastly, numerical computations of the nonlinear ship-wave problem are presented in order to confirm the analytical predictions.
Simulation von ORMOCER®-Materialien mit klassischen und reaktiven Kraftfeldmethoden
Creators: name: Asche, Thomas Sebastian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Inorganic-organic hybrid materials
subject: modeling
subject: force field methods
subject: reactive force fields
subject: Anorganisch-organische Hybridmaterialien
subject: ORMOCER®
subject: Modellierung
subject: Kraftfeldmethoden
subject: reaktive Kraftfeldmethoden
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Maximizing the Lifetime of Multi-chain PEGASIS using Sink Mobility
Creators: name: Jafri, Mohsin Raza
name: Javaid, Nadeem
name: Javaid, Akmal
name: Khan, Zahoor Ali
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper, we propose the mobility of a sink in improved energy efficient PEGASIS-based protocol (IEEPB) to advance the network lifetime of Wireless Sensor Networks (WSNs). The multi-head chain, multi-chain concept and the sink mobility affects largely in enhancing the network lifetime of wireless sensors. Thus, we recommend Mobile sink improved energy-efficient PEGASIS-based routing protocol (MIEEPB); a multi-chain model having a sink mobility, to achieve proficient energy utilization of wireless sensors. As the motorized movement of mobile sink is steered by petrol or current, there is a need to confine this movement within boundaries and the trajectory of mobile sink should be fixed. In our technique, the mobile sink moves along its trajectory and stays for a sojourn time at sojourn location to guarantee complete data collection. We develop an algorithm for trajectory of mobile sink. We ultimately perform wide-ranging experiments to assess the performance of the proposed method. The results reveal that the proposed way out is nearly optimal and also better than IEEPB in terms of network lifetime.
Funktionelle Analyse der Intrazellulardomäne des murinen Notch-Liganden Delta-like 1
Creators: name: Redeker, Christian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Delta-like 1
subject: intrazelluläre Domäne
subject: reverser Notch-Signalweg
subject: Intracellular domain
subject: reverse notch signaling
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Synchrony suppression in ensembles of coupled oscillators via adaptive vanishing feedback
Creators: name: Montaseri, Ghazal
name: Yazdanpanah, Mohammad Javad
name: Pikovsky, Arkady
name: Rosenblum, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Synchronization and emergence of a collective mode is a general phenomenon, frequently observed in ensembles of coupled self-sustained oscillators of various natures. In several circumstances, in particular in cases of neurological pathologies, this state of the active medium is undesirable. Destruction of this state by a specially designed stimulation is a challenge of high clinical relevance. Typically, the precise effect of an external action on the ensemble is unknown, since the microscopic description of the oscillators and their interactions are not available. We show, that desynchronization in case of a large degree of uncertainty about important features of the system is nevertheless possible; it can by achieved by virtue of a feedback loop with an additional adaptation of parameters. The adaptation also ensures desynchronization of ensembles with non-stationary, time-varying parameters. We perform the stability analysis of the feedback-controlled system and demonstrate efficient destruction of synchrony for several models, including those of spiking and bursting neurons.
description: 29 pages, 7 figures
Macroscopic quantum self-trapping and Josephson oscillations of exciton-polaritons
Creators: name: Abbarchi, M.
name: Amo, A.
name: Sala, V. G.
name: Solnyshkov, D. D.
name: Flayac, H.
name: Ferrier, L.
name: Sagnes, I.
name: Galopin, E.
name: Lemaitre, A.
name: Malpuech, G.
name: Bloch, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A textbook example of quantum mechanical effects is the coupling of two states through a tunnel barrier. In the case of macroscopic quantum states subject to interactions, the tunnel coupling gives rise to Josephson phenomena including Rabi oscillations, the a.c. and d.c. effects, or macroscopic self-trapping depending on whether tunnelling or interactions dominate. Non-linear Josephson physics, observed in superfluid helium and atomic condensates, has remained inaccessible in photonic systems due to the required effective photon-photon interactions. We report on the observation of non-linear Josephson oscillations of two coupled polariton condensates confined in a photonic molecule etched in a semiconductor microcavity. By varying both the distance between the micropillars forming the molecule and the condensate density in each micropillar, we control the ratio of coupling to interaction energy. At low densities we observe coherent oscillations of particles tunnelling between the two micropillars. At high densities, interactions quench the transfer of particles inducing the macroscopic self-trapping of the condensate in one of the micropillars. The finite lifetime of polaritons results in a dynamical transition from self-trapping to oscillations with pi phase. Our results open the way to the experimental study of highly non-linear regimes in photonic systems, such as chaos or symmetry-breaking bifurcations.
Charakterisierungsmethoden und simulationsgestützte Analysen von Silizium Solarzellen
Creators: name: Ohrdes, Tobias
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Photoconductance decay
subject: short-circuit current losses
subject: back contacted solar cells
subject: Photoleitfähigkeitsmessungen
subject: Kurzschlussstromverluste
subject: Rückkontakt-Solarzellen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Abies pectinata Ten.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E. pectinata Ten. (E. majalis Jordan, E. ericetorum var. majalis Gremli) Cat.282. l: Vernayaz; Salvan; Les Marecottes (alles: Coquoz); La Bätiaz bei Martigny (J.); Le Rosel (Garns). - 2: Saillon (Garns); ob Dorbon nördlich Arbaz (Terretaz); Le Chätelard bei Lens (Besse). - 3: Ob Liddes (R. Chodat); Bourg-St-Pierre (idem); Haute-Nendaz (Garns); unter Niouc (J.); Unterbäch (Binz); Visp (Wilczek); Saas-Almagell (Gyhr); Schallberg am Simplon (Hirschmann). - 4:Oberwald (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
Stochastische Niederschlagsmodellierung unter Berücksichtigung von Großwetterlagen
Creators: name: Belli, Aslan
Publisher: name: Hannover : Institut für Hydrologie und Wasserwirtschaft
Year: 2017
Subjects: subject: Precipitation
subject: rainfall modeling
subject: flood protection
subject: Niederschlag
subject: Niederschlagsmodellierung
subject: Hochwasserschutz
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::624 | Ingenieurbau und Umwelttechnik

description: [no abstract]
Betriebsverhalten von Wälzlagerschutzdichtungen : experimentelle Untersuchungen und Berechnungsansätze
Creators: name: Ottink, Kathrin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Protective seals
subject: friction losses
subject: protective performance
subject: Schutzdichtungen
subject: Reibungsverluste
subject: Förderwirkung
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Kritische Anmerkungen zur historischen Interpretation literarischer Zeugnisse für die Religion der Kelten
Creators: name: Strobel, Karl
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: ...
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Funktionelle und strukturelle Charakterisierung des phage shock protein A aus Escherichia coli
Creators: name: Osadnik, Hendrik Gerhard
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Bakterielle Stressantwort
subject: psp-System
subject: PspA
subject: bacterial stress response
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Multivariate varying coefficient model for functional responses
Creators: name: Zhu, Hongtu
name: Li, Runze
name: Kong, Linglong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Motivated by recent work studying massive imaging data in the neuroimaging literature, we propose multivariate varying coefficient models (MVCM) for modeling the relation between multiple functional responses and a set of covariates. We develop several statistical inference procedures for MVCM and systematically study their theoretical properties. We first establish the weak convergence of the local linear estimate of coefficient functions, as well as its asymptotic bias and variance, and then we derive asymptotic bias and mean integrated squared error of smoothed individual functions and their uniform convergence rate. We establish the uniform convergence rate of the estimated covariance function of the individual functions and its associated eigenvalue and eigenfunctions. We propose a global test for linear hypotheses of varying coefficient functions, and derive its asymptotic distribution under the null hypothesis. We also propose a simultaneous confidence band for each individual effect curve. We conduct Monte Carlo simulation to examine the finite-sample performance of the proposed procedures. We apply MVCM to investigate the development of white matter diffusivities along the genu tract of the corpus callosum in a clinical study of neurodevelopment.
description: Published in at http://dx.doi.org/10.1214/12-AOS1045 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Multi-wavelength Hubble Space Telescope photometry of stellar populations in NGC288
Creators: name: Piotto, G.
name: Milone, A. P.
name: Marino, A. F.
name: Bedin, L. R.
name: Anderson, J.
name: Jerjen, H.
name: Bellini, A.
name: Cassisi, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present new UV observations for NGC288, taken with the WFC3 detector on board the Hubble Space Telescope, and combine them with existing optical data from the archive to explore the multiple-population phenomenon in this globular cluster (GC). The WFC3's UV filters have demonstrated an uncanny ability to distinguish multiple populations along all photometric sequences in GCs, thanks to their exquisite sensitivity to the atmospheric changes that are tell-tale signs of second-generation enrichment. Optical filters, on the other hand, are more sensitive to stellar-structure changes related to helium enhancement. By combining both UV and optical data we can measure helium variation. We quantify this enhancement for NGC288 and find that its variation is typical of what we have come to expect in other clusters.
description: 15 pages, 5 figures, accepted for publication in ApJ
Disformal invariance of Maxwell's field equations
Creators: name: Goulart, E.
name: Falciano, F. T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that Maxwell's electrodynamics in vacuum is invariant under active transformations of the metric. These metrics are related by disformal mappings induced by derivatives of the gauge vector $A_μ$ such that the gauge symmetry is preserved. Our results generalize the well known conformal invariance of electrodynamics and characterize a new type of internal symmetry of the theory. The group structure associated with these transformations is also investigated in details.
description: 8 pages, no figures
Alisa Scheibner, Der Hund in der mitteleuropäischen Eisenzeit. Wirtschaftliche, rituelle und soziale Aspekte
Creators: name: Ewersen, Jörg
name: Klapp, Birte
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Alisa Scheibner, Der Hund in der mitteleuropäischen Eisenzeit. Wirtschaftliche, rituelle und soziale Aspekte. Berliner Archäologische Forschungen Band 12. Marie Leidorf, Rahden / Westf. 2013. € 54.80. ISBN 978-3-89646-522-1, ISSN 1611-355. 189 pages, 23 tables, 22 maps, 28 plates.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Assessing the adoption and impact of organic and fair trade certification of pepper in India
Creators: name: Parvathi, Priyanka
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Adoption
subject: fair trade
subject: impact
subject: organic farming
subject: poverty
subject: Armut
subject: Auswirkungen
subject: fairer Handel
subject: ökologische Landwirtschaft
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: [no abstract]
Darstellung neuer Hydrogele zur Anwendung im tissue engineering : Studien zur Darstellung neuer Kinaseinhibitoren
Creators: name: Dibbert, Nick
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Polysaccharide
subject: tissue engineering
subject: Hydrogele
subject: Kinaseinhibitoren
subject: Suzuki Kreuzkupplung
subject: Polysaccharides
subject: hydrogels
subject: kinase inhibitors
subject: Suzuki cross-coupling
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Normal incidence sound insulation provided by Sonic Crystal Acoustic Screens made from rigid scatterers, assessment of different simulation methods
Creators: name: Peiró-Torres, M. P.
name: Ferri, Marcelino
name: Godinho, L. M.
name: Amado-Mendes, P.
name: Folch, F. J. V.
name: Redondo, Javier
Publisher: name: arXiv
Year: 2024
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Sonic crystal acoustic screens have been in progressive research and development in the last two decades as a technical solution for mitigating traffic noise. Their behaviour is quite different from that observed in classical barriers, with the latter being based on physically blocking the direct sound propagation path (only allowing diffracted noise to reach sensible receivers), and sonic crystals providing attenuation efficiency based on the creation of band-gaps at specific frequency ranges, due to the Bragg's interference phenomenon. The distinct physical mechanisms of these two types of noise barriers complicates the use of classical simplified or even numerical models developed for traditional barriers to simulate and predict the attenuation performance of a sonic crystal, and alternative methods become thus required. In the acoustics scientific literature, several authors have proposed estimation and simulation methods based on different numerical tools to predict the sound insulation provided by these new noise abatement solutions. This paper presents a comparative evaluation of some of these methods, with emphasis to the assessment of their accuracy versus memory usage in order to determine which one is the most suitable for optimization methodologies in the design of new devices with improved acoustic performance.
description: 18 pages, 4 figures
Prozessentwicklung & Verlustanalysen für dünne monokristalline Siliziumsolarzellen und deren Prozessierung auf Modullevel
Creators: name: Petermann, Jan Hendrik
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Monocrystalline silicon solar cells
subject: free energy loss analysis
subject: synergetic efficiency gain analysis
subject: module level processing
subject: Monokristalline Siliziumsolarzellen
subject: freie Energie Verlustanalyse
subject: synergetische Effizienz-Gewinn-Analyse
subject: laser fired and bonding contacts
subject: Modullevelprozessierung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
$L_1$-norm of combinations of products of independent random variables
Creators: name: Latała, Rafał
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60E15, 42A05

description: We show that $L_1$-norm of linear combinations (with scalar or vector coefficients) of products of i.i.d. nonnegative mean one random variables is comparable to $l_1$-norm of coefficients.
description: 14 pages
Gerd SACHS, Zypern. Archäologie und Geschichte
Creators: name: Körner, Christian
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2023

description: Rezension zu: Gerd Sachs, Zypern. Archäologie und Geschichte. Antiquitates Archäologi­sche Forschungsergebnisse Bd. 79. Hamburg: Verlag Dr. Kovač 2022, 66 S., 53 Abb., EUR 54,80. ISBN: 978-3-339-13270-3.
description: Göttinger Forum für Altertumswissenschaft, Bd. 26 (2023): Göttinger Forum für Altertumswissenschaft
Michael Doneus / Christian Gugl / Nives Doneus, Die Canabae von Carnuntum. Eine Modellstudie der Erforschung römischer Lagervorstädte. Von der Luftbildprospektion zur siedlungsarchäologischen Synthese
Creators: name: Rudnick, Bernhard
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Michael Doneus / Christian Gugl / Nives Doneus, Die Canabae von Carnuntum. Eine Modellstudie der Erforschung römischer Lagervorstädte. Von der Luftbildprospektion zur siedlungsarchäologischen Synthese. Der römische Limes in Österreich Heft 47. Österreichische Akademie der Wissenschaften, Wien 2013. € 98,—. ISBN 978-3-7001-7128-7. 261 Seiten, 131 Textabbildungen, Listen A und B im Anhang, Geographisches Register und Sachregister, 27 Tafeln, 2 Beilagen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Annelies Koster, The Cemetery of Noviomagus and the Wealthy Burials of the Municipal Elite
Creators: name: Struck, Manuela
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Annelies Koster, The Cemetery of Noviomagus and the Wealthy Burials of the Municipal Elite. Descriptions of the Archaeological Collections in Museum Het Valkhof at Nijmegen Band XIV. Museum Het Valkhof, Nijmegen 2013. € 49,50. ISBN 978-90-6829-103-2. 463 Seiten mit Abbildungen, Tabellen und 80 Tafeln.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Resonant demagnetization of a dipolar BEC in a 3D optical lattice
Creators: name: de Paz, A.
name: Chotia, A.
name: Marechal, E.
name: Pedri, P.
name: Vernac, L.
name: Gorceix, O.
name: Laburthe-Tolra, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study dipolar relaxation of a chromium BEC loaded into a 3D optical lattice. We observe dipolar relaxation resonances when the magnetic energy released during the inelastic collision matches an excitation towards higher energy bands. A spectroscopy of these resonances for two orientations of the magnetic field provides a 3D band spectroscopy of the lattice. The narrowest resonance is registered for the lowest excitation energy. Its line-shape is sensitive to the on-site interaction energy. We use such sensitivity to probe number squeezing in a Mott insulator, and we reveal the production of three-body states with entangled spin and orbital degrees of freedom.
description: 5 pages, 3 Figures, Supplemental Material
Nonperturbative semiclassical stability of de Sitter spacetime for small metric deviations
Creators: name: Fröb, Markus B.
name: Papadopoulos, Demetrios B.
name: Roura, Albert
name: Verdaguer, Enric
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the linearized semiclassical Einstein equations for small deviations around de Sitter spacetime including the vacuum polarization effects of conformal fields. Employing the method of order reduction, we find the exact solutions for general metric perturbations (of scalar, vector and tensor type). Our exact (nonperturbative) solutions show clearly that in this case de Sitter is stable with respect to small metric deviations and a late-time attractor. Furthermore, they also reveal a breakdown of perturbative solutions for a sufficiently long evolution inside the horizon. Our results are valid for any conformal theory, even self-interacting ones with arbitrarily strong coupling.
description: 19 pages
title: Shigatoxin-bildende E. coli in Lebensmitteln: Vorhersage des krankmachenden Potenzials der verschiedenen Stämme noch nicht möglich: Stellungnahme Nr. 009/2018 des BfR vom 19. April 2018
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2018
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2018, no. 009
Untersuchungen zur Biosynthese und Degradation sekundärer Pflanzeninhaltsstoffe in der Rinderernährung
Creators: name: Özmen, Selvihan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Grass silage
subject: low true protein content of crude protein
subject: plant secondary metabolites
subject: flavonoids
subject: RP-HPLC
subject: LC-ESI-MS/MS
subject: Grassilage
subject: erniedrigte Reineiweißanteile am Rohprotein
subject: pflanzliche Sekundärmetabolite
subject: Flavonoide
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
Optimized Parallel Transmission in Elastic Optical Networks to Support High-Speed Ethernet
Creators: name: Chen, Xiaomin
name: Jukan, Admela
name: Gumaste, Ashwin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The need for optical parallelization is driven by the imminent optical capacity crunch, where the spectral efficiency required in the coming decades will be beyond the Shannon limit. To this end, the emerging high-speed Ethernet services at 100 Gbps, have already standardized options to utilize parallel optics to parallelize interfaces referred to as Multi-lane Distribution (MLD). OFDM-based optical network is a promising transmission option towards the goal of Ethernet parallelization. It can allocate optical resource tailored for a variety of bandwidth requirements and that in a fundamentally parallel fashion with each sub-carrier utilizing a frequency slot at a lower rate than if serial transmission was used. In this paper, we propose a novel parallel transmission framework designed for elastic (OFDM-based) optical networks to support high-speed Ethernet services, in-line with IEEE and ITU-T standards. We formulate an ILP optimization model based on integer linear programming, with consideration of various constraints, including spectrum fragmentation, differential delay and guard-band constraints. We also propose a heuristic algorithm which can be applied when the optimization model becomes intractable. The numerical results show the effectiveness and high suitability of elastic optical networks to support parallel transmission in high-speed Ethernet. To the best of our knowledge, this is the first attempt to investigate the parallel transmission in elastic optical networks to support standardized high-speed Ethernet.
description: 12 pages, submitted to IEEE Journal of Lightwave Technology, under review
Christoph Eger, Spätantikes Kleidungszubehör aus Nordafrika I. Trägerkreis, Mobilität und Ethnos im Spiegel der Funde der spätesten römischen Kaiserzeit und der vandalischen Zeit
Creators: name: Heinrich-Tamáska, Orsolya
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Christoph Eger, Spätantikes Kleidungszubehör aus Nordafrika I. Trägerkreis, Mobilität und Ethnos im Spiegel der Funde der spätesten römischen Kaiserzeit und der vandalischen Zeit. Münchner Beiträge zur provinzialrömischen Archäologie Band 5. Reichert Verlag, Wiesbaden 2012. € 98,-. ISBN 978-3-89500-912-9. 428 Seiten, 27 Tafeln, 70 Abbildungen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
title: Speisekartoffeln sollten niedrige Gehalte an Glykoalkaloiden (Solanin) enthalten: Stellungnahme Nr. 010/2018 des BfR vom 23. April 2018
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2018
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2018, no. 010
Routing Model for Multicommodity Freight in an Intermodal Network under Disruptions
Creators: name: Uddin, Majbah
name: Huynh, Nathan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper presents a mathematical model for the routing of multicommodity freight in an intermodal network under disruptions. A stochastic mixed-integer program was formulated to minimize not only operational costs of various modes and transfer costs at terminals but also penalty costs associated with unsatisfied demands. The sample average approximation algorithm was used to solve this challenging problem. The developed model was then applied to two networks-a hypothetical 15-node network and an actual intermodal network in the Gulf Coast, Southeastern, and Mid-Atlantic regions of the United States-to demonstrate its applicability with explicit consideration of disruptions at links, nodes, and terminals. The model results indicated that during disruptions, goods in the study region should be shipped by road-rail intermodal network because of the built-in redundancy of the freight transport network. Additionally, the routes generated by the model were found to be more robust than those typically used by freight carriers.
A Cost-Efficient Approach for Creating Virtual Fitting Room using Generative Adversarial Networks (GANs)
Creators: name: Attallah, Kirolos
name: Zaky, Girgis
name: Abdelrhim, Nourhan
name: Botros, Kyrillos
name: Dife, Amjad
name: Negied, Nermin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Customers all over the world want to see how the clothes fit them or not before purchasing. Therefore, customers by nature prefer brick-and-mortar clothes shopping so they can try on products before purchasing them. But after the Pandemic of COVID19 many sellers either shifted to online shopping or closed their fitting rooms which made the shopping process hesitant and doubtful. The fact that the clothes may not be suitable for their buyers after purchase led us to think about using new AI technologies to create an online platform or a virtual fitting room (VFR) in the form of a mobile application and a deployed model using a webpage that can be embedded later to any online store where they can try on any number of cloth items without physically trying them. Besides, it will save much searching time for their needs. Furthermore, it will reduce the crowding and headache in the physical shops by applying the same technology using a special type of mirror that will enable customers to try on faster. On the other hand, from business owners' perspective, this project will highly increase their online sales, besides, it will save the quality of the products by avoiding physical trials issues. The main approach used in this work is applying Generative Adversarial Networks (GANs) combined with image processing techniques to generate one output image from two input images which are the person image and the cloth image. This work achieved results that outperformed the state-of-the-art approaches found in literature.
Total- und Semisynthese neuer Carolacton-Derivate
Creators: name: Ammermann, Jonas
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Derivative
subject: total synthesis
subject: macrolactam
subject: Carolacton
subject: Derivat
subject: Totalsynthese
subject: Makrolactam
subject: Biofilm
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Joint Devices and IRSs Association for Terahertz Communications in Industrial IoT Networks
Creators: name: Rahim, Muddasir
name: Kaddoum, Georges
name: Do, Tri Nhu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The Industrial Internet of Things (IIoT) enables industries to build large interconnected systems utilizing various technologies that require high data rates. Terahertz (THz) communication is envisioned as a candidate technology for achieving data rates of several terabits-per-second (Tbps). Despite this, establishing a reliable communication link at THz frequencies remains a challenge due to high pathloss and molecular absorption. To overcome these limitations, this paper proposes using intelligent reconfigurable surfaces (IRSs) with THz communications to enable future smart factories for the IIoT. In this paper, we formulate the power allocation and joint IIoT device and IRS association (JIIA) problem, which is a mixed-integer nonlinear programming (MINLP) problem. {Furthermore, the JIIA problem aims to maximize the sum rate with imperfect channel state information (CSI).} To address this non-deterministic polynomial-time hard (NP-hard) problem, we decompose the problem into multiple sub-problems, which we solve iteratively. Specifically, we propose a Gale-Shapley algorithm-based JIIA solution to obtain stable matching between uplink and downlink IRSs. {We validate the proposed solution by comparing the Gale-Shapley-based JIIA algorithm with exhaustive search (ES), greedy search (GS), and random association (RA) with imperfect CSI.} The complexity analysis shows that our algorithm is more efficient than the ES.
Nicole Reifarth, Zur Ausstattung spätantiker Elitegräber aus St. Maximin in Trier. Purpur, Seide, Gold und Harze
Creators: name: Bender Jørgensen, Lise
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Nicole Reifarth, Zur Ausstattung spätantiker Elitegräber aus St. Maximin in Trier. Purpur, Seide, Gold und Harze. Internationale Archäologie, volume 124. Verlag Marie Leidorf, Rahden / Westf. 2013. € 74.80. ISBN 978-3-89646-499-6, ISSN 0939-0561X. 524 pages, 724 illustrations and 7 tables.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)