cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evolution of Spin Direction of Accreting Magnetic Protostars and Spin-Orbit Misalignment in Exoplanetary Systems: II. Warped Discs
Creators: name: Foucart, Francois
name: Lai, Dong
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Magnetic interactions between a protostar and its accretion disc tend to induce warping in the disc and produce secular changes in the stellar spin direction, so that the spin axis may not always be perpendicular to the disc. This may help explain the recently observed spin-orbit misalignment in a number of exoplanetary systems. We study the dynamics of warped protoplanetary discs under the combined effects of magnetic warping/precession torques and internal stresses in the disc, including viscous damping of warps and propagation of bending waves. We show that when the outer disc axis is misaligned with the stellar spin axis, the disc evolves towards a warped steady-state on a timescale that depends on the disc viscosity or the bending wave propagation speed, but in all cases is much shorter than the timescale for the spin evolution (of order of a million years). Moreover, for the most likely physical parameters characterizing magnetic protostars, circumstellar discs and their interactions, the steady-state disc has a rather small warp, such that the whole disc lies approximately in a single plane determined by the outer disc boundary conditions, although more extreme parameters may give rise to larger disc warps. In agreement with our recent analysis (Lai et al. 2010) based on flat discs, we find that the back-reaction magnetic torques of the slightly warped disc on the star can either align the stellar spin axis with the disc axis or push it towards misalignment, depending on the parameters of the star-disc system. This implies that newly formed planetary systems may have a range of inclination angles between the stellar spin axis and the symmetry axis of the planetary orbits.
description: 18 pages, 20 figures, Accepted by MNRAS
High volumetric capacitance near insulator-metal percolation transition
Creators: name: Efros, A. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A new type of a capacitor with a very high volumetric capacitance is proposed. It is based upon the known phenomenon of a sharp increase of the dielectric constant of the metal-insulator composite in the vicinity of the percolation threshold, but still on the insulator side. The optimization suggests that the metallic particles should be of nanoscale and that the distance between planar electrodes should be somewhat larger than the correlation length of the percolation theory and 10 to 20 times larger than the size of the particles while the area of the electrodes might be unlimited. The random electric field in the capacitors is found to be larger than the average field corresponding to the potential difference of electrodes. This random field is potentially responsible for dielectric breakdown. The estimated breakdown voltage of the new capacitor shows that the stored energy density might be significantly larger than that of electrolytic capacitors while the volumetric capacitances might be comparable. The charging and discharging times should be significantly smaller than corresponding times of batteries and even electrolytic capacitors.
description: 10 pages 1 EPS figure
Evaluierung der Energie-Effizienz von Sicherheitsmechanismen in drahtlosen Sensornetzen
Creators: name: Haas, Christian
Publisher: name: Karlsruhe
Year: 2014

description: Im Rahmen dieser Arbeit wurde der Einfluss verschiedener Faktoren auf den Energiebedarf von Sicherheitsmechanismen in drahtlosen Sensornetzen evaluiert. Im Mittelpunkt der Untersuchungen stand insbesondere der Einfluss des Medienzugriffsverfahrens auf den Energiebedarf von (hardwarebasierten) Sicherheitsmechanismen. Als Evaluierungswerkzeuge kam dabei neben dem Testbed SANDBed auch der Simulator AVRORA+ zum Einsatz, dessen Energiemodell im Rahmen dieser Dissertation entstand.
Evaluation of Dishwashing Systems in Food Service Establishments
Creators: name: Freshwater, John F.
name: Steckler, Daniel M.
name: Freshwater, John F.
name: Steckler, Daniel M.
Publisher: name: Unknown
Year: 1973
Subjects: Labor and Human Capital
Research and Development/Tech Change/Emerging Technologies
Research Methods/ Statistical Methods

description: Excerpts from the report: This research study was designed to provide food service operators with management tools to enable them to determine the amount of standard man-hours and costs associated with specific types of dishwashing systems. Standard man-hours are defined as the product of normal time multiplied by a personal and fatigue allowance. Normal time is defined as either the product of recorded time multiplied by the pace-rating factor or the summation of universal standard data time increments for basic hand, arm, body, and foot movements. Costs are defined as the summation of costs per 1,000 washable pieces for productive labor, equipment, utilities, maintenance repairs, supplies, and washable tableware. The data presented in this publication were obtained from an analysis of 12 restaurants in the metropolitan Washington, D.C., area. Restaurants were selected on the basis of volume of dishes processed, type of customer service rendered, and type of dishwashing equipment and operating practices used in washing and handling dishes.
Full-analytic frequency-domain gravitational wave forms from eccentric compact binaries to 2PN accuracy
Creators: name: Tessmer, Manuel
name: Schaefer, Gerhard
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The article provides full-analytic gravitational wave (GW) forms for eccentric nonspinning compact binaries of arbitrary mass ratio in the time Fourier domain. The semi-analytical property of recent descriptions, i.e. the demand of inverting the higher-order Kepler equation numerically but keeping all other computations analytic, is avoided for the first time. The article is a completion of a previous one (Tessmer and Schäfer, Phys. Rev. D 82, 124064 (2010)) to second post-Newtonian (2PN) order in the harmonic GW amplitude and conservative orbital dynamics. A fully analytical inversion formula of the Kepler equation in harmonic coordinates is provided, as well as the analytic time Fourier expansion of trigonometric functions of the eccentric anomaly in terms of sines and cosines of the mean anomaly. Tail terms are not considered.
description: 48 pages
Hydrothermal synthesis of molybdenum based oxides for the application in catalysis
Creators: name: Schuh, Kirsten
Publisher: name: Karlsruhe
Year: 2014
Subjects: Heterogeneous catalysis
Hydrothermal synthesis
Selective propylene oxidation to acrolein
Molybdenum oxide
Hydrotreating

description: Hydrothermal synthesis was applied to prepare orthorhombic molybdenum oxides as well as mixed metal molybdenum oxides for the application in selective oxidation of propylene to acrolein and hydrotreating reactions. The influence of the synthesis parameters on the product properties such as particle size, particle shape or phase composition as well as their catalytic activity was studied in detail. Additionally, flame spray pyrolysis was applied for comparison.
Higgs Boson Sector of the Next-to-MSSM with CP Violation
Creators: name: Cheung, Kingman
name: Hou, Tie-Jiun
name: Lee, Jae Sik
name: Senaha, Eibun
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a comprehensive study of the Higgs sector in the framework of the next-to-minimal supersymmetric standard model with CP-violating parameters in the superpotential and in the soft-supersymmetry-breaking sector. Since the CP is no longer a good symmetry, the two CP-odd and the three CP-even Higgs bosons of the next-to-minimal supersymmetric standard model in the CP-conserving limit will mix. We show explicitly how the mass spectrum and couplings to gauge bosons of the various Higgs bosons change when the CP-violating phases take on nonzero values. We include full one-loop and the logarithmically enhanced two-loop effects employing the renormalization-group (RG) improved approach. In addition, the LEP limits, the global minimum condition, and the positivity of the square of the Higgs-boson mass have been imposed. We demonstrate the effects on the Higgs-mass spectrum and the couplings to gauge bosons with and without the RG-improved corrections. Substantial modifications to the allowed parameter space happen because of the changes to the Higgs-boson spectrum and their couplings with the RG-improved corrections. Finally, we calculate the mass spectrum and couplings of the few selected scenarios and compare to the previous results in literature where possible; in particular, we illustrate a scenario motivated by electroweak baryogenesis.
description: 40 pages, 49 figures; v2: typos corrected and references added; v3: some clarification and new figures added, version published in PRD
The Paris Region and Europe finance 52 post-doctoral research contracts
Creators: name: Costa de Beauregard, Gabrielle
Publisher: name: Zenodo
Year: 2021
Subjects: PARISREGIONFP
H2020
MSCA
COFUND
REA
POSTDOCTORALRESEARCH
CAREERDEVELOPMENT

description: General features of the MSCA COFUND Paris Region Fellowship Programme, financed by the EC (no 945298).
Visualization Algorithms for Maps and Diagrams
Creators: name: Gemsa, Andreas
Publisher: name: Karlsruhe
Year: 2014

description: One of the most common visualization tools used by mankind are maps or diagrams. In this thesis we explore new algorithms for visualizing maps (road and argument maps). A map without any textual information or pictograms is often without use so we
research also further into the field of labeling maps. In particular we consider the new challenges posed by interactive maps offered by mobile devices. We discuss new algorithmic approaches and experimentally evaluate them.
Observational constraints on the LLTB model
Creators: name: Marra, Valerio
name: Paakkonen, Mikko
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We directly compare the concordance LCDM model to the inhomogeneous matter-only alternative represented by LTB void models. To achieve a "democratic" confrontation we explore LLTB models with non-vanishing cosmological constant and perform a global likelihood analysis in the parameter space of cosmological constant and void radius. In our analysis we carefully consider SNe, Hubble constant, CMB and BAO measurements, marginalizing over spectral index, age of the universe and background curvature. We find that the LCDM model is not the only possibility compatible with the observations, and that a matter-only void model is a viable alternative to the concordance model only if the BAO constraints are relaxed. Moreover, we will show that the areas of the parameter space which give a good fit to the observations are always disconnected with the result that a small local void does not significantly affect the parameter extraction for LCDM models.
description: JHEP style: 23 pages, 6 figures; replaced to match the improved version accepted for publication in JCAP. The Mathematica package LLTB 1.0 and the likelihood animations are available at http://www.turbogl.org/LLTB.html
Herstellung und Charakterisierung mechanisch flexibler organischer Solarzellen durch Flüssigprozessierung
Creators: name: Nickel, Felix
Publisher: name: Karlsruhe
Year: 2014
Subjects: Organische Solarzellen
druckbare Elektronik
regenerative Energien
optoelektronische Bauelemente
organische Halbleiter

description: In der vorliegenden Arbeit wurden Elektrodensysteme für flexible organische Solarzellen entwickelt und optoelektronisch untersucht. Der Fokus liegt dabei auf einer Applikation aller funktionalen Schichten aus der Flüssigphase. Dies ermöglicht eine kosteneffektive Herstellung der Solarzellen mit großflächigen Druck- und Beschichtungsverfahren. Zudem wurde die mechanische Stabilität der Elektrodensysteme sowie der gesamten Solarzelle in Zugversuchen bestimmt.
Spin filling of valley-orbit states in a silicon quantum dot
Creators: name: Lim, W. H.
name: Yang, C. H.
name: Zwanenburg, F. A.
name: Dzurak, A. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the demonstration of a low-disorder silicon metal-oxide-semiconductor (Si MOS) quantum dot containing a tunable number of electrons from zero to N=27. The observed evolution of addition energies with parallel magnetic field reveals the spin filling of electrons into valley-orbit states. We find a splitting of 0.10 meV between the ground and first excited states, consistent with theory and placing a lower bound on the valley splitting. Our results provide optimism for the realization in the near future of spin qubits based on silicon quantum dots.
description: 6 pages, 4 figures, to appear in Nanotechnology
Lorentz covariance of loop quantum gravity
Creators: name: Rovelli, Carlo
name: Speziale, Simone
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The kinematics of loop gravity can be given a manifestly Lorentz-covariant formulation: the conventional SU(2)-spin-network Hilbert space can be mapped to a space K of SL(2,C) functions, where Lorentz covariance is manifest. K can be described in terms of a certain subset of the "projected" spin networks studied by Livine, Alexandrov and Dupuis. It is formed by SL(2,C) functions completely determined by their restriction on SU(2). These are square-integrable in the SU(2) scalar product, but not in the SL(2,C) one. Thus, SU(2)-spin-network states can be represented by Lorentz-covariant SL(2,C) functions, as two-component photons can be described in the Lorentz-covariant Gupta-Bleuler formalism. As shown by Wolfgang Wieland in a related paper, this manifestly Lorentz-covariant formulation can also be directly obtained from canonical quantization. We show that the spinfoam dynamics of loop quantum gravity is locally SL(2,C)-invariant in the bulk, and yields states that are preciseley in K on the boundary. This clarifies how the SL(2,C) spinfoam formalism yields an SU(2) theory on the boundary. These structures define a tidy Lorentz-covariant formalism for loop gravity.
description: 6 pages, 1 figure. v2 references added, v3 minor changes
Momentum dependence of drag coefficients and heavy flavour suppression in quark gluon plasma
Creators: name: Mazumder, Surasree
name: Bhattacharyya, Trambak
name: Alam, Jan-e
name: Das, Santosh K
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The momentum dependence of the drag coefficient of heavy quarks propagating through quark gluon plasma (QGP) has been evaluated. The results have been used to estimate the nuclear suppression factor of charm and bottom quarks in QGP. We observe that the momentum dependence of the transport coefficients plays crucial role in the suppression of the heavy quarks and consequently in discerning the properties of QGP using heavy flavours as a probe. We show that the large suppression of the heavy quarks observed at RHIC and LHC is predominantly due to the radiative losses. The suppression of $D^0$ in Pb+Pb collisions at LHC energy - recently measured by the ALICE collaboration has also been studied.
description: Minor changes in the text
Topics in SH-wave propagation
Creators: Daley, Patrick F.
Publisher: name: University of Alberta Library
Year: 1981

SH waves in layered transversely isotropic media : an asymptotic expansion approach -- SH waves in layered transversely isotropic media : a wave approach -- Ray-reflectivity method for SH waves in stacks of thin and thick layers -- A comparison of synthetic seismograms for a thinly stratified medium and a transversely isotropic medium.
Propionate-Oxidizing bacteria in Anaerobic Biowaste Digesters
Creators: name: Mörtelmaier, Christoph
Publisher: name: Karlsruhe
Year: 2015
Subjects: Methanogenesis
Propionate
FISH
POB

description: Propionic acid can be found in many biogas plants. Fluorescence in situ hybridization was used to determine the number of propionate oxidizing bacteria (POB) in wet anaerobic digestion (WAD) and in dry anaerobic digestion (DAD) reactors In WAD reactors the obligate syntrophic Pelotomaculum sp. played the major role in propionic acid metabolism. In the thermophilic DAD assays high numbers of Desulfotomaculum thermobenzoicum thermosyntrophicum cells could be found with new probe Dtsyn1130.
TiO2: Application in Photocatalysis for the Degradation of Organic Pollutants and Aggregation Behavior in Aquatic Systems
Creators: name: Ren, Meijie
Publisher: name: Karlsruhe
Year: 2015

description: Natural organic matter is the most restrictive effect on the photocatalytic degradation of organic pollutants. The presence of dissolved oxygen can eliminate the inhibitory effect. The aggregation behavior of TiO2 was investigated in the presence of different types of dissolved organic matter. Bovine serum albumin had the strongest stabilization effect. A new immobilized catalyst polyvinyl alcohol (PVA)/TiO2 film was synthesized. It possessed good photocatalytic activity and stability.
Non-Hermitean Wishart random matrices (I)
Creators: name: Kanzieper, Eugene
name: Singh, Navinder
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: High Energy Physics - Theory (hep-th)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Quantitative Methods (q-bio.QM)
subject: Computational Finance (q-fin.CP)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Biological sciences
subject: FOS: Economics and business

description: A non-Hermitean extension of paradigmatic Wishart random matrices is introduced to set up a theoretical framework for statistical analysis of (real, complex and real quaternion) stochastic time series representing two "remote" complex systems. The first paper in a series provides a detailed spectral theory of non-Hermitean Wishart random matrices composed of complex valued entries. The great emphasis is placed on an asymptotic analysis of the mean eigenvalue density for which we derive, among other results, a complex-plane analogue of the Marchenko-Pastur law. A surprising connection with a class of matrix models previously invented in the context of quantum chromodynamics is pointed out.
description: published version: 29 pages, 4 figures; references added
title: Über die Kunst, im Tun das Lassen zu üben
title: Biblisch-theologische Glücksmomente
Creators: name: Müllner, Ilse
Publisher: name: Universität Kassel
Year: 2007
Subjects: subject: 230
subject: Glück
subject: Paradies
subject: Moralisches Handeln
subject: Bibel. Altes Testament
subject: Katholische Theologie

description: Der Sammelband enthält Beiträge der durch Timo Hoyer und Gottfried Heinemann organisierten Ringvorlesung an der Universität Kassel: »Das ›Glück‹ im interdisziplinären Gespräch«, Sommersemester 2006.
Structure of the Intraseasonal Pricing Mechanism for Late Summer Onions, 1930-68
Creators: name: Jesse, Edward V.
name: Jesse, Edward V.
Publisher: name: Unknown
Year: 1973
Subjects: subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods
subject: Futures trading
subject: marketing
subject: onions
subject: pricing

description: This study considers possible changes in the structure of the intraseasonal pricing mechanism for late summer onions, resulting from the presence of a futures market for onions. An econometric model focusing on seasonal variation in Michigan shipping-point prices is developed and separately estimated for three historical periods: a 14-year period prior to trading, a 15-year futures-trading period, and a 9-year period following a congressional ban on trading in onions. The results of several tests using the model did not show any consistent differences in the structure of the pricing mechanism among the three periods.
ppiTrim: Constructing non-redundant and up-to-date interactomes
Creators: name: Stojmirović, Aleksandar
name: Yu, Yi-Kuo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: Robust advances in interactome analysis demand comprehensive, non-redundant and consistently annotated datasets. By non-redundant, we mean that the accounting of evidence for every interaction should be faithful: each independent experimental support is counted exactly once, no more, no less. While many interactions are shared among public repositories, none of them contains the complete known interactome for any model organism. In addition, the annotations of the same experimental result by different repositories often disagree. This brings up the issue of which annotation to keep while consolidating evidences that are the same. The iRefIndex database, including interactions from most popular repositories with a standardized protein nomenclature, represents a significant advance in all aspects, especially in comprehensiveness. However, iRefIndex aims to maintain all information/annotation from original sources and requires users to perform additional processing to fully achieve the aforementioned goals. To address issues with iRefIndex and to achieve our goals, we have developed ppiTrim, a script that processes iRefIndex to produce non-redundant, consistently annotated datasets of physical interactions. Our script proceeds in three stages: mapping all interactants to gene identifiers and removing all undesired raw interactions, deflating potentially expanded complexes, and reconciling for each interaction the annotation labels among different source databases. As an illustration, we have processed the three largest organismal datasets: yeast, human and fruitfly. While ppiTrim can resolve most apparent conflicts between different labelings, we also discovered some unresolvable disagreements mostly resulting from different annotation policies among repositories. URL: http://www.ncbi.nlm.nih.gov/CBBresearch/Yu/downloads/ppiTrim.html
description: 21 pages, 2 figures, 6 tables, 8 supplementary tables. Minor corrections of typos and similar
On Mechanical Metamaterials
Creators: name: Bückmann, Tiemo Kurt
Publisher: name: Karlsruhe
Year: 2015
Subjects: Mechanical Metamaterials
elstic cloaking
density
linear elasticity

description: Mechanical Metamaterials are artificial materials which give access to elastic properties beyond natural materials. Within this work linear elastic material properties are tailored to exploit a Poisson's ratio of close to 0.5 as well as approaching -1. These material properties are computed and the density is adjusted to specific values to control e.g. the impedance. At last two different cloaking concepts are realized with these materials and elastostatic cloaking is achieved.
Theta-vacuum and large N limit in CP^{N-1} sigma models
Creators: name: Aguado, Miguel
name: Asorey, Manuel
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The theta dependence of the vacuum energy density in CP^{N-1} models is re-analysed in the semiclassical approach, the 1/N expansion and arguments based on the nodal structure of vacuum wavefunctionals. The 1/N expansion is shown not to be in contradiction with instanton physics at finite (spacetime) volume V. The interplay of large volume V and large N parameter gives rise to two regimes with different theta dependence, one behaving as a dilute instanton gas and the other dominated by the traditional large N picture, where instantons reappear as resonances of the one-loop effective action, even in the absence of regular instantonic solutions. The realms of the two regimes are given in terms of the mass gap m by m^2 V << N and m^2 V >> N, respectively. The small volume regime m^2 V << N is relevant for physical effects associated to the physics of the boundary, like the leading role of edge states in the quantum Hall effect, which, however, do not play any role in the thermodynamic limit at large N. Depending on the order in which the limits N -> \infty and V -> \infty are taken, two different theories are obtained; this is the hallmark of a phase transition at 1/N = 0.
description: v2: 25 pages, 4 eps figures, introduction expanded, matches published version
Costs of Dry Whole Milk Packaged for Household Use
Creators: name: Moede, Herbert H.
name: Moede, Herbert H.
Publisher: name: Unknown
Year: 1973
Subjects: subject: Agribusiness
subject: Labor and Human Capital
subject: Production Economics
subject: Milk products
subject: Costs
subject: Processing
subject: Packaging
subject: Dry whole milk

description: Cost estimates are for dry whole milk packaged in laminated foil pouches for household use. Total cost is analyzed on the basis of using either a single-pass or double-pass instantizing process. In the single-pass procedure, raw material costs accounted for an estimated 75.4 percent of total cost, while packaging costs amounted to 21.1 percent. For the double-pass process, raw materials were 69.9 percent of the total, and packaging was 19.5 percent.
Probing nearest-neighbor correlations of ultracold fermions in an optical lattice
Creators: name: Greif, Daniel
name: Tarruell, Leticia
name: Uehlinger, Thomas
name: Jördens, Robert
name: Esslinger, Tilman
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We demonstrate a probe for nearest-neighbor correlations of fermionic quantum gases in optical lattices. It gives access to spin and density configurations of adjacent sites and relies on creating additional doubly occupied sites by perturbative lattice modulation. The measured correlations for different lattice temperatures are in good agreement with an ab initio calculation without any fitting parameters. This probe opens new prospects for studying the approach to magnetically ordered phases.
description: 4 figures
Self-compassion : an adaptive way to reduce recurrent depression symptoms through emotion regulation
Creators: name: Bakker, A. Myfanwy
Publisher: name: University of British Columbia
Year: 2017

description: Major depressive disorder (MDD) is often a recurring disorder, with multiple major depressive episodes (MDEs) experienced over a lifetime. A key challenge for those who struggle with depression is the prevention of recurrence, given that the risk of recurrence increases significantly with each episode. Difficulty with emotion regulation has consistently been found to predict both depression symptoms and MDD, and is proposed to be an important factor in both the development and chronicity of this disorder (Atherton, Nevels, & Moore, 2015; Aldao, Nolen-Hoeksema, & Schweizer, 2010). Recently, self-compassion has been presented as a robust protective factor in depression (Diedrich, Grant, Hofmann, Hiller, & Berking, 2014; Ehret, Joormann, & Berking, 2015; Krieger, Berger, & Hotlforth, 2016). Furthermore, it has been suggested that low levels of self-compassion may be an enduring risk factor for depression recurrence (Ehret et al., 2015). This study examined how self-compassion may be protective in the recurrence of depression symptoms through specific emotion regulation strategies associated with depression: rumination, experiential avoidance, acceptance, and cognitive reappraisal. Surprisingly little research has examined the pathways through which self-compassion and depression symptoms are linked. A sample of 105 participants with a history of recurrent depression were recruited using Amazon’s Mechanical Turk (MTurk). Simple and multiple mediation analyses (Preacher & Hayes, 2008) were conducted. Results from the simple mediation models indicated that higher levels of self-compassion were associated with lower depression symptoms through rumination, experiential avoidance, and acceptance. Surprisingly, cognitive reappraisal did not mediate the relation between self-compassion and recurrent depression symptoms. The multiple mediation model revealed that rumination was the only significant mediator, when controlling for other emotion regulation strategy variables. Theoretical and clinical implications are discussed.
Optimale Steuerung regenerativer Energiesysteme in einer stochastischen Umwelt
Creators: name: Lust, Andre
Publisher: name: Karlsruhe
Year: 2015

description: Das Ziel der Dissertation ist eine theoretische Analyse des operativen Betriebs regenerativer
Energiesysteme in einer stochastischen Umwelt. Hierzu werden drei Modelle unterschiedlicher Energiesystemkonfigurationen
als Markovsche Entscheidungsprozesse formuliert und bezüglich der Struktur gewinnoptimaler
Betriebsstrategien mit dem Ziel eines reduzierten Lösungsaufwands untersucht.
NEW EXPERIMENTAL SETUP FOR ASSESSING TURBINE VANE FRAME AERODYNAMIC PERFORMANCE
Creators: name: Merli, Filippo
name: Peters, Andreas
name: Sterzinger, Patrick Zeno
name: Wiesinger, Lukas
name: Heitmeir, Franz
name: Göttlich, Emil
Publisher: name: ASME Turbo Expo 2019, Poenix, Arizona
Year: 2019

description: The Turbine Vane Frame (TVF) is a turning concept for intermediate turbine ducts, combining the functions of conventional Turbine Center Frames (TCFs) and the vane of the first stage of the Low Pressure Turbine (LPT). The TVF component plays a key role in turbine performance of a turbofan engine architecture, as the TVF has to guide the flow smoothly and separation-free over the radial offset between the High- and Low-Pressure Turbine (HPT, LPT). This poster shows why this solution can find successful application in new generation turbofan engines, particularly in geared turbofan architectures, which allow to decouple the fan and the LPT rotational speeds, leading to faster and smaller LPT stages, counter-rotating with respect to the HPT. In fact, compared to non-turning ducts, the TVF concept implies the removal of the first LPT vane row, due to the integration of advanced aerodynamic turning struts. Its employment is consequently expected to reduce the engine length, weight, cost and (indirectly) fuel burn.The poster introduces an ongoing research program in the two-spool transonic test turbine facility, situated at the Institute of Thermal Turbomachinery and Machine Dynamics (ITTM) of Graz University of Technology. This project will advance the knowledge of the aerodynamic phenomena occurring in a TVF, therefore its results will be highly relevant for aero-engines manufacturers, in the challenging frame of a continuously growing air transport segment, combined with stricter international policies regarding pollutants emission.The project consists of two experimental campaigns - (1) a baseline TVF configuration and (2) an optimized HPT-TVF-LPT design. The two-stage, two-spool test rig, capable of providing HPT and LPT purge flows, ensures engine-relevant operating conditions at the TVF inlet and outlet, an essential requirement to correctly address the HPT-TVF-LPT interaction mechanisms and evaluate the TVF performance. Since the aerodynamics of any intermediate duct is influenced by the level of incoming flow effects, variations of HPT tip clearance and purge flows are also planned, in order to assess their impact on TVF losses.This poster presents the test setup and rig design, and the instrumentation and the measurements strategies. High-level results of pre-test numerical simulations of the HPT-TVF-LPT setup will also be shown to highlight important flow features and loss mechanisms which will be studied in detail and validated once the measurement data is obtained.The project TRAVIATA leading to this application has received funding from the Clean Sky 2 Joint Undertaking under the European Union's Horizon 2020 research and innovation program under grant agreement No 785313.
Rheology of Protein Foams
Creators: name: Lexis, Meike
Publisher: name: Karlsruhe
Year: 2015

description: Foams with gas volume fractions f>fc possess peculiar rheological properties, a minimum stress called yield stress is needed to initiate foam flow and below foams behave as viscoelastic solids with a storage modulus G'>G''. Beyond the widely accepted physical models predicting elastic modulus and yield stress from the Laplace pressure within the gas bubbles and the gas volume fraction these quantities strongly depend on corresponding interfacial properties.
Steigerung der Prozesswiederholbarkeit mittels Analyse akustischer Emissionen bei der Mikrolaserablation mit UV-Pikosekundenlasern
Creators: name: Weber, Patricia
Publisher: name: Karlsruhe
Year: 2014
Subjects: Lasermaterialbearbeitung
Prozessüberwachung
Mikrolaserablation
Prozesswiederholbarkeit Pikosekundenlaser
Akustische Emission

description: Due to its flexible application lasers are used in many innovative areas. Especially in micro manufacturing tolerances are nerrow and thus make an automated, controlled and regulated process essential. The integration of sensors and the development of monitoring and control units in the process are an important part of current research. The aim of this work is to increase the process repeatability by analyzing acoustic emissions during micro laser ablation with UV picosecond lasers.
Building Evacuation with Mobile Devices
Creators: name: Merkel, Sabrina
Publisher: name: Karlsruhe
Year: 2014
Subjects: Evakuierung
Lokalisierung
Mobile Ad-hoc-Netzwerke

description: In der Dissertation wird ein Konzept für ein Gebäudeevakuierungssystem vorgestellt, das es ermöglicht, Personen mit Hilfe mobiler Endgeräte im Evakuierungsfall aus einem Gebäude zu führen. Die Dissertation gliedert sich in drei thematische Bereiche, in denen zunächst ein Konzept für die Systemarchitektur vorgestellt wird und anschließend verschiedene Algorithmen zur Routenplanung sowie zur Lokalisierung der Geräte vorgestellt und evaluiert werden.
Métodos para la Selección y el Ajuste de Características en el Problema de la Detección de Spam
Creators: name: Lorenzetti, Carlos M.
name: Cecchini, Rocío L.
name: Maguitman, Ana G.
name: Benczúr, András A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: H.3.3
subject: 68P20

description: The email is used daily by millions of people to communicate around the globe and it is a mission-critical application for many businesses. Over the last decade, unsolicited bulk email has become a major problem for email users. An overwhelming amount of spam is flowing into users' mailboxes daily. In 2004, an estimated 62% of all email was attributed to spam. Spam is not only frustrating for most email users, it strains the IT infrastructure of organizations and costs businesses billions of dollars in lost productivity. In recent years, spam has evolved from an annoyance into a serious security threat, and is now a prime medium for phishing of sensitive information, as well the spread of malicious software. This work presents a first approach to attack the spam problem. We propose an algorithm that will improve a classifier's results by adjusting its training set data. It improves the document's vocabulary representation by detecting good topic descriptors and discriminators.
description: 5 pages, 1 figure, Workshop de Investigadores en Ciencias de la Computaci\'{o}n, WICC 2010, pp 48-52
Millimeter Radio Continuum Emissions as the Activity of Super Massive Black Holes in Nearby Early-Type Galaxies and Low-Luminosity Active Galactic Nuclei
Creators: name: Doi, Akihiro
name: Nakanishi, Kouichiro
name: Nagai, Hiroshi
name: Kohno, Kotaro
name: Kameno, Seiji
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We conducted millimeter continuum observations for samples of nearby early-type galaxies (21 sources) and nearby low-luminosity active galactic nuclei (LLAGN; 16 sources) at 100 GHz (3 mm) using the Nobeyama Millimeter Array (NMA). In addition, we performed quasi-simultaneous observations at 150 GHz (2 mm) and 100 GHz for five LLAGNs. Compact nuclear emissions showing flat or inverted spectra at centimeter-to-millimeter wavelengths were found in many LLAGNs and several early-type galaxies. Moreover, significant flux variability was detected in three LLAGNs. These radio properties are similar to Sgr A*. The observed radio luminosities are consistent with the fundamental plane of black hole activity that has suggested on the basis of samples with black hole masses ranging from 10 to 10^10 M_sun. This implies nuclear jets powered by radiatively inefficient accretion flows onto black holes.
description: 11 pages, 2 figures, accepted for publication in the Astronomical Journal
Das Produktivitätsmanagement des Industrial Engineering unter besonderer Betrachtung der Arbeitsproduktivität und der indirekten Bereiche
Creators: name: Dorner, Martin
Publisher: name: Karlsruhe
Year: 2014
Subjects: Produktivitätsmanagement
Arbeitsproduktivität
Produktivitätscontrolling
Indirekten Bereiche
Industrial Engineering

description: Es wird ein Modell des Produktivitätsmanagements mitsamt der Einbindung von praxistauglichen Produktivitätskennzahlen im Sinne eines modernen Industrial Engineering entwickelt und die Übertragbarkeit und Anwendbarkeit des Modells in die indirekten Bereiche dargestellt und anhand eines Praxisbeispiels verifiziert.
Magnetothermal instabilities in magnetized anisotropic plasmas
Creators: name: Nakwacki, M. S.
name: Peralta-Ramos, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Using the transport equations for an ideal anisotropic collisionless plasma derived from the Vlasov equation by the 16-moment method, we analyse the influence of pressure anisotropy exhibited by collisionless magnetized plasmas on the magnetothermal (MTI) and heat-flux-driven buoyancy (HBI) instabilities. We calculate the dispersion relation and the growth rates for these instabilities in the presence of a background heat flux and for configurations with static pressure anisotropy, finding that when the frequency at which heat conduction acts is much larger than any other frequency in the system (i.e. weak magnetic field) the pressure anisotropy has no effect on the MTI/HBI, provided the degree of anisotropy is small. In contrast, when this ordering of timescales does not apply the instability criteria depend on pressure anisotropy. Specifically, the growth time of the instabilities in the anisotropic case can be almost one order of magnitude smaller than its isotropic counterpart. We conclude that in plasmas where pressure anisotropy is present the MTI/HBI are modified. However, in environments with low magnetic fields and small anisotropy such as the ICM the results obtained from the 16-moment equations under the approximations considered are similar to those obtained from ideal MHD.
description: v3: 16 pages, 2 figures, fixed typos, added references and a final note on related work
Optimal Constrained Investment and Reinsurance in Lundberg insurance models
Creators: name: Edalati Nozadi, Alireza
Publisher: name: Karlsruhe
Year: 2014
Subjects: Optimal Investment
Reinsurance
Maximal Survival Probability
Constraints
Viscosity Solutions

description: Optimal investment and reinsurance strategies for an insurer with state-dependent constraints are computed via a recursive finite difference solution to the corresponding discretized Hamilton-Jacobi-Bellman equation. The concept of viscosity solution is used to derive convergence of the numerical method. The uniqueness of the viscosity solution is obtained through a comparison theorem.
Harvesting, Storing, and Packing Apples for the Fresh Market: Regional Practices and Costs
Creators: name: Podany, Joseph C.
name: Bohall, Robert W.
name: Pearrow, Joan
name: Podany, Joseph C.
name: Bohall, Robert W.
name: Pearrow, Joan
Publisher: name: Unknown
Year: 1973
Subjects: subject: Consumer/Household Economics
subject: Labor and Human Capital
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: Apples
subject: Costs
subject: Fresh Fruit
subject: Fresh Market
subject: Harvesting
subject: Interregional Competition
subject: Marketing
subject: Packing
subject: Selling
subject: Storage

description: Methods of procurement, operating costs, and marketing practices of 232 firms packing fresh apples in the 1969/70 season are delineated for five major production regions. Most apples came from the firms' own acreage or were handled on a consignment basis. Harvesting costs per bushel--including costs of picking and hauling the apples to the packing shed or to storage--ranged from 34 cents in the Northwest to 44 cents in the Northeast. Regular atmosphere and controlled atmosphere storage charges were lowest in California and the Lake States and highest in the Northwest. Packing costs--including labor, container, selling, and overhead costs--ranged from 94 cents for bulk cartons in the Lake States to $1.58 per tray-pack carton in the Northwest. Sales direct to chainstores were the most common, accounting for 35 percent of total sales of all firms. Sales to wholesale terminal firms accounted for 21 percent of total sales, and sales to chainstores through brokers, for 19 percent. The most common term of sale was f.o.b. shipping point, especially in the Northwest.
Reduction of the Elliptic SL(N,C) top
Creators: name: Aminov, G.
name: Arthamonov, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a relation between the elliptic SL(N,C) top and Toda systems and obtain a new class of integrable systems in a specific limit of the elliptic SL(N,C) top. The relation is based on the Inozemtsev limit (IL) and a symplectic map from the elliptic Calogero-Moser system to the elliptic SL(N,C) top. In the case when N=2 we use an explicit form of a symplectic map from the phase space of the elliptic Calogero-Moser system to the phase space of the elliptic SL(2,C) top and show that the limiting tops are equivalent to the Toda chains. In the case when N>2 we generalize the above procedure using only the limiting behavior of Lax matrices. In a specific limit we also obtain a more general class of systems and prove the integrability in the Liouville sense of a certain subclass of these systems. This class is described by a classical r-matrix obtained from an elliptic r-matrix.
Strichartz estimates for Dirichlet-wave equations in two dimensions with applications
Creators: name: Smith, Hart F.
name: Sogge, Christopher D.
name: Wang, Chengbo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L71

description: We establish the Strauss conjecture for nontrapping obstacles when the spatial dimension $n$ is two. As pointed out in \cite{HMSSZ} this case is more subtle than $n=3$ or 4 due to the fact that the arguments of the first two authors \cite{SmSo00}, Burq \cite{B} and Metcalfe \cite{M} showing that local Strichartz estimates for obstactles imply global ones require that the Sobolev index, $γ$, equal 1/2 when $n=2$. We overcome this difficulty by interpolating between energy estimates ($γ=0$) and ones for $γ=\frac12$ that are generalizations of Minkowski space estimates of Fang and the third author \cite{FaWa2}, \cite{FaWa}, the second author \cite{So08} and Sterbenz \cite{St05}.
description: Final version, to appear in the Transactions of the AMS. 20 pages, 2 figures
Thermal drag revisited: Boltzmann versus Kubo
Creators: name: Gangadharaiah, Suhas
name: Chernyshev, A. L.
name: Brenig, Wolfram
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effect of mutual drag between phonons and spin excitations on the thermal conductivity of a quantum spin system is discussed. We derive general expression for the drag component of the thermal current using both Boltzmann equation approach and Kubo linear-response formalism to leading order in the spin-phonon coupling. We demonstrate that aside from higher-order corrections which appear in the Kubo formalism both approaches yield identical results for the drag thermal conductivity. We discuss the range of applicability of our result and provide a generalization of our consideration to the cases of fermionic excitations and to anomalous forms of boson-phonon coupling. Several asymptotic regimes of our findings relevant to realistic situations are highlighted.
description: 14 pages, 3 figures, published version, extended discussion
Pauli-limiting effects in the upper critical fields of a clean LiFeAs single crystal
Creators: name: Khim, Seunghyun
name: Lee, Bumsung
name: Kim, Jae Wook
name: Choi, Eun Sang
name: Stewart, G. R.
name: Kim, Kee Hoon
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have investigated the temperature-dependence of the upper critical field Hc2(T) in a LiFeAs single crystal by direct measurements of resistivity under static magnetic fields up to 36 T. We find in the case of a magnetic field H along the ab-plane that Hc2ab(0) = 30 T is clearly lower than the orbital limiting field Hc2orb,ab (0) = 39.6 T estimated by the |dHc2ab / dT|Tc, suggesting the presence of both Pauli- and orbital-limiting effects in the pair breaking process. The best fit of Hc2ab(T) to the Werthamer-Helfand-Hohenberg formula results in the Maki parameter α = 0.9 and negligible spin-orbit scattering constant (λso = 0.0). On the other hand, for H along the c-axis, Hc2c(T) increases linearly down to our lowest temperature of 0.8 K, which can be explained by the multi-band effects. The anisotropy ratio Hc2ab(T) / Hc2c(T) is 3 near Tc and systematically decreases upon lowering temperature to become 1.3 at zero temperature. A comparative overview of the behavior of Hc2ab(T) in various Fe-based superconductors shows that, similar to LiFeAs, the calculated Hc2orb,ab (0) is generally much larger than the measured Hc2ab(0) and thus finite α values ranging from ~ 0.4 to 3 are necessary to describe the low temperature Hc2ab(T) behaviors. Moreover, LiFeAs is found to have the smallest |dHc2ab / dT|Tc values, indicating that LiFeAs is one of the cleanest Fe-based superconductors with a finite Maki parameter. We also discuss the implications of multi-band effects and spin-orbit scattering based on the finding that the estimated Pauli-limiting field is generally much larger than the BCS prediction in the Fe-based superconductors.
Mikrowellen-Spinmanipulation in Spin-LEDs
Creators: name: Merz, Andreas
Publisher: name: Karlsruhe
Year: 2014
Subjects: Mikrowellen
Spinmanipulation
Spin-LED
Quantenpunkte
Spintronic

description: Diese Arbeit verfolgt den Ansatz der ESR für die Anwendung in spintronischen Bauteilen. Dabei werden spinpolarisierte Elektronen in einer Spin-LED in InGaAs Quantenpunkte injiziert und der Spinzustand optisch ausgelesen. Die Spinmanipulation wird durch den verwendeten Spinausrichter (ZnMnSe) ermöglicht. Die Arbeit beweist damit, dass ein schnelles Schalten von Elektronenspins durch die gezielte resonante Anregung von Übergängen zwischen Spinzuständen möglich ist.