cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Politics of the periphery : religion and place at a city's edge in Taiwan
Creators: name: Chou, Hansen
Publisher: name: University of British Columbia
Year: 2009

description: This thesis explores the recent revival of popular religion in Taiwan through broader anthropological concerns regarding place and space. Swift industrialization and rapid urbanization of past decades have not dissuaded religious practice; instead they have flourished on the island. This study pays specific attention to their proliferation at the urban margins. Drawing on historical and ethnographic data based on field research conducted in 2007, the present work examines the spatial politics of place at a community on the urban periphery, just outside of Taipei in northern Taiwan. More specifically, it analyzes two key sites within the community that locals often evoke as crucial locations in their cultural and social imaginings of place: a cultural heritage district and the local communal temple. It documents various “spatial practices” (de Certeau 1984) of place, and focuses particularly on the divination ritual at the temple. This work draws upon some of the ideas advanced by Henri Lefebvre (1991) in his theorization of urbanization, particularly his notion of “abstract space”: the expanding spaces of homogeneity created in the wake of global capitalism’s spread. By addressing the everyday experiences of space, this thesis addresses the dynamics between histories, affect and place. In all, it argues that, amidst the uncertainties of change brought on by their modern(izing) surroundings, people resort to rituals like divination in hopes to mitigate their maladies and misfortunes. By turning to the past in their attempts to make sense of the present, they further engage in a form of local production.
Insights from Classifying Visual Concepts with Multiple Kernel Learning
Creators: name: Binder, Alexander
name: Nakajima, Shinichi
name: Kloft, Marius
name: Müller, Christina
name: Samek, Wojciech
name: Brefeld, Ulf
name: Müller, Klaus-Robert
name: Kawanabe, Motoaki
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Combining information from various image features has become a standard technique in concept recognition tasks. However, the optimal way of fusing the resulting kernel functions is usually unknown in practical applications. Multiple kernel learning (MKL) techniques allow to determine an optimal linear combination of such similarity matrices. Classical approaches to MKL promote sparse mixtures. Unfortunately, so-called 1-norm MKL variants are often observed to be outperformed by an unweighted sum kernel. The contribution of this paper is twofold: We apply a recently developed non-sparse MKL variant to state-of-the-art concept recognition tasks within computer vision. We provide insights on benefits and limits of non-sparse MKL and compare it against its direct competitors, the sum kernel SVM and the sparse MKL. We report empirical results for the PASCAL VOC 2009 Classification and ImageCLEF2010 Photo Annotation challenge data sets. About to be submitted to PLoS ONE.
description: 18 pages, 8 tables, 4 figures, format deviating from plos one submission format requirements for aesthetic reasons
Model Reduction For Forward Solutions
Creators: name: Adler, Andy
name: Lionheart, William
Publisher: name: Zenodo
Year: 2016
Subjects: EIT
Schur compliment
resistor network
region of interest
FEM
model reduction
nusance parameters

description: EIT estimates the internal conductivity distribution from body surface electrodes via the solution of an

inverse problem. Most approaches require solution of a forward problem based on a finite element model (FEM) of

the medium of interest. For iterative solvers, the solution time is typically dominated by the time to solve the FEM

(both for estimation of the measurements and the Jacobian) at each iteration. There is thus a strong incentive to

develop techniques to reduce the solution time.

To obtain accurate forward solutions, it is typically necessary to model a large region far away from the electrodes.

This is most severe in geophysical or endoscopic EIT applications where the medium is effectively infinite. However,

it is also true of traditional EIT applications where, for example, the chest extends above and below the electrode

plane(s). In these extended regions, we do not actually need so solve for the internal voltages; we simply need to

model the effect of the extended region on the ROI. This effect can be thought of in two ways: 1) the extended

region’s effect can be represented by its Dirichlet to Neumann map, or 2) in a resistor model representation of the

FEM, the extended region can be replaced by an equivalent N-port resistor mesh (with 0.5 × N × (N + 1) resistors)

Objective: To implement the model reduction scheme and verify its accuracy and improved calculation time.
Constraints on the Lifetimes of Disks Resulting from Tidally Destroyed Rocky Planetary Bodies
Creators: name: Girven, J.
name: Brinkworth, C. S.
name: Farihi, J.
name: Gänsicke, B. T.
name: Hoard, D. W.
name: Marsh, T. R.
name: Koester, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Spitzer IRAC observations of 15 metal-polluted white dwarfs reveal infrared excesses in the spectral energy distributions of HE 0110-5630, GD 61, and HE 1349-2305. All three of these stars have helium-dominated atmospheres, and their infrared emissions are consistent with warm dust produced by the tidal destruction of (minor) planetary bodies. This study brings the number of metal-polluted, helium and hydrogen atmosphere white dwarfs surveyed with IRAC to 53 and 38 respectively. It also nearly doubles the number of metal-polluted helium-rich white dwarfs found to have closely orbiting dust by Spitzer. From the increased statistics for both atmospheric types with circumstellar dust, we derive a typical disk lifetime of log[t_{disk} (yr)] = 5.6+-1.1 (ranging from 3*10^4 - 5*10^6 yr). This assumes a relatively constant rate of accretion over the timescale where dust persists, which is uncertain. We find that the fraction of highly metal-polluted helium-rich white dwarfs that have an infrared excess detected by Spitzer is only 23 per cent, compared to 48 per cent for metal-polluted hydrogen-rich white dwarfs, and we conclude from this difference that the typical lifetime of dusty disks is somewhat shorter than the diffusion time scales of helium-rich white dwarf. We also find evidence for higher time-averaged accretion rates onto helium-rich stars compared to the instantaneous accretion rates onto hydrogen-rich stars; this is an indication that our picture of evolved star-planetary system interactions is incomplete. We discuss some speculative scenarios that can explain the observations.
description: 20 pages, 9 figures, accepted to be published in ApJ
GKW representation theorem and linear BSDEs under restricted information. An application to risk-minimization
Creators: name: Ceci, Claudia
name: Cretarola, Alessandra
name: Russo, Francesco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H10, 60H30, 91B28

description: In this paper we provide Galtchouk-Kunita-Watanabe representation results in the case where there are restrictions on the available information. This allows to prove existence and uniqueness for linear backward stochastic differential equations driven by a general càdlàg martingale under partial information. Furthermore, we discuss an application to risk-minimization where we extend the results of Föllmer and Sondermann (1986) to the partial information framework and we show how our result fits in the approach of Schweizer (1994).
description: 22 pages
PIFSC report on the American Samoa limited-access longline fishery from 1 July to 31 December 2013.
Creators: name: Pacific Islands Fisheries Science Center (U.S.), Fisheries Research And Monitoring Division.
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Pacific Islands Fisheries Science Center.
Year: 2016
Subjects: subject: Longlining (Fisheries)--Catch effort--American Samoa--Observations.

description: The following tables represent effort, retained catch (kept) and discards as reported on longline logsheets for the American Samoa limited-access longline fishery. Effort and catch-effort statistics are based on date of longline haul. Effort and catch statistics are based on logbook data submitted to the PIFSC, FRMD and represent an Oracle table LLDS_REPORT_STATS_AS database extraction done on 29 February 2016. When a statistic (number of vessels, trips) can involve dates of haul in 2 summary periods (i.e. years, semi-annual, quarters) the item is counted in both summary periods. Thus, a trip total is for 'partial and completed' trips. As such, these statistics are not additive (i.e. sum of 4 quarters is not the total for the year, etc).
Boundary induced vibration and dynamic stiffness of a sagging cable
Creators: name: Starossek, Uwe
Publisher: name: TUHH Universitätsbibliothek
Year: 1990
Subjects: classificationCode: 620
subject: Ingenieurwissenschaften

description: This paper sets forth the linear theory of boundary induced vibration of an extensible, sagging cable. A dynamic stiffness matrix is derived whose coefficients are functions of the frequeny of motion, and which is suitable for dynamic direct-stiffness analysis of complex systems. The study considers motion within the cable plane only. Viscous damping is taken into account.
Estimation of the Covariance Matrix of Large Dimensional Data
Creators: name: Yao, Jianfeng
name: Kammoun, Abla
name: Najim, Jamal
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper deals with the problem of estimating the covariance matrix of a series of independent multivariate observations, in the case where the dimension of each observation is of the same order as the number of observations. Although such a regime is of interest for many current statistical signal processing and wireless communication issues, traditional methods fail to produce consistent estimators and only recently results relying on large random matrix theory have been unveiled. In this paper, we develop the parametric framework proposed by Mestre, and consider a model where the covariance matrix to be estimated has a (known) finite number of eigenvalues, each of it with an unknown multiplicity. The main contributions of this work are essentially threefold with respect to existing results, and in particular to Mestre's work: To relax the (restrictive) separability assumption, to provide joint consistent estimates for the eigenvalues and their multiplicities, and to study the variance error by means of a Central Limit theorem.
Every Call is Precious for Global Optimization of Black Box Functions with Unknown Lipschitz Constants
Creators: name: Fourati, Fares
Publisher: name: KAUST Research Repository
Year: 2025

description: Optimizing expensive, non-convex, black-box Lipschitz continuous functions presents significant challenges, particularly when the Lipschitz constant of the underlying function is unknown. Such problems often demand numerous function evaluations to approximate the global optimum, which can be prohibitive in terms of time, energy, or resources. In this work, we introduce Every Call is Precious (ECP), a novel global optimization algorithm that minimizes unpromising evaluations by strategically focusing on potentially optimal regions. Unlike previous approaches, ECP eliminates the need to estimate the Lipschitz constant, thereby avoiding additional function evaluations. ECP guarantees no-regret performance for infinite evaluation budgets and achieves minimax-optimal regret bounds within finite budgets. Extensive ablation studies validate the algorithm’s robustness, while empirical evaluations show that ECP outperforms 10 benchmark algorithms including Lipschitz, Bayesian, bandits, and evolutionary methods across 30 multi-dimensional non-convex synthetic and real-world optimization problems, which positions ECP as a competitive approach for global optimization.
PIFSC report on the American Samoa limited-access longline fishery from 1 October to 31 December 2013.
Creators: name: Pacific Islands Fisheries Science Center (U.S.), Fisheries Research And Monitoring Division.
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Pacific Islands Fisheries Science Center.
Year: 2016
Subjects: subject: Longlining (Fisheries)--Catch effort--American Samoa--Observations.

description: The following tables represent effort, retained catch (kept) and discards as reported on longline logsheets for the American Samoa limited-access longline fishery. Effort and catch-effort statistics are based on date of longline haul. Effort and catch statistics are based on logbook data submitted to the PIFSC, FRMD and represent an Oracle table LLDS_REPORT_STATS_AS database extraction done on 29 February 2016. When a statistic (number of vessels, trips) can involve dates of haul in 2 summary periods (i.e. years, semi-annual, quarters) the item is counted in both summary periods. Thus, a trip total is for 'partial and completed' trips. As such, these statistics are not additive (i.e. sum of 4 quarters is not the total for the year, etc).
title: Ordnung für das Department Chemie der Fakultät für Naturwissenschaften an der Universität Paderborn : vom 22. Juni 2016
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2016
Subjects: subject: Sozialwissenschaften
subject: Bildung und Erziehung
subject: Hochschulbildung

description: Amtliche Mitteilungen / Universität Paderborn
Mather sets for sequences of matrices and applications to the study of joint spectral radii
Creators: name: Morris, Ian D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: The joint spectral radius of a compact set of d-times-d matrices is defined ?to be the maximum possible exponential growth rate of products of matrices drawn from that set. In this article we investigate the ergodic-theoretic structure of those sequences of matrices drawn from a given set whose products grow at the maximum possible rate. This leads to a notion of Mather set for matrix sequences which is analogous to the Mather set in Lagrangian dynamics. We prove a structure theorem establishing the general properties of these Mather sets and describing the extent to which they characterise matrix sequences of maximum growth. We give applications of this theorem to the study of joint spectral radii and to the stability theory of discrete linear inclusions. These results rest on some general theorems on the structure of orbits of maximum growth for subadditive observations of dynamical systems, including an extension of the semi-uniform subadditive ergodic theorem of Schreiber, Sturman and Stark, and an extension of a noted lemma of Y. Peres. These theorems are presented in the appendix.
Immobilization of antimicrobial peptides onto titanium surfaces
Creators: name: Lu, Shanshan
Publisher: name: University of British Columbia
Year: 2009

description: Prosthetic-associated infections are one of the most challenging postoperative complications for orthopedic implants. The consequences that infections may lead to include patient pain, high cost, prolonged hospitalization time, and usually the revision of the implant. Current prophylaxis and therapy utilizing antibiotics are facing an emergency of increasing bacterial resistance; the design of a novel anti-infectious implant surface is therefore required. Among the potential antimicrobial alternatives are the antimicrobial peptides (AMP). AMPs are a family of natural defense peptides that has not received enough recognition until recently. The complex killing mechanisms of these cationic peptides make them very unlikely to encounter resistant mutants, and their broad-spectrum activity offers them great opportunity in possible clinical applications. In this study, a novel short AMP Tet213 with prominent bactericidal activity was chosen as the antimicrobial candidate and was covalently attached to titanium surfaces through a short bifunctional linker. This designed routine was confirmed with single cysteine before being applied to the 9-mer AMP candidate. The surface density of the immobilized AMP was determined by detecting its arginine residues after a reaction with 9,10-phenanthrequenon (PHQ). The reaction between arginine and PHQ generates a fluorescent product, by the emission of which the quantity of the arginine-containing peptide can be calculated. The density of the surface-attached Tet213 was measured to be 1.30±0.55 μg/cm². A relatively large proportion of physically adsorbed Tet213 was also observed, with the net adsorbed quantity to be 0.74±0.20 μg/cm². The affinity of the cationic AMP to the bare titanium surface is believed to be a result of electrostatic interactions. Both the covalently immobilized and the physically adsorbed Tet213 showed bactericidal activities of generally > 50% against a Pseudomonas aeruginosa (P. aeruginosa) strain which constitutively expresses luminescence when alive. The inhibition rate was calculated by the luminescence reduction and confirmed by the colony counts of the surviving bacteria. Several parameters were found to be influential to the overall inhibition rate, including the selection of the AMP candidate, the dilution of the bacterial culture and the bacterial incubation time.
Towards User-Centric Management Of Security And Dependability In Clouds Of Clouds
Creators: name: Lacoste, Marc
name: Charmet, Fabien
Publisher: name: Zenodo
Year: 2015

description: SUPERCLOUD aims to fulfil the vision of user-centric secure and dependable clouds of clouds through a new security management architecture and infrastructure. It will support user-centric deployments across multi-clouds enabling composition of innovative trustworthy services, thus uplifting Europe innovation capacity and competitiveness.
Groupoids and Poisson sigma models with boundary
Creators: name: Contreras, Ivan
name: Cattaneo, Alberto S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: This note gives an overview on the construction of symplectic groupoids as reduced phase spaces of Poisson sigma models and its generalization in the infinite dimensional setting (before reduction).
description: 10 pages
Irrotational flow within the boundary layer and wake : IV. Georg-Weinblum-Gedächtnis-Vorlesung
Creators: name: Landweber, Louis
Publisher: name: TUHH Universitätsbibliothek
Year: 1981
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Irrotational flow within the boundary layer and wake
Susceptibility amplitude ratio for generic competing systems
Creators: name: Farias, C. F.
name: Leite, Marcelo M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the susceptibility amplitude ratio near a generic higher character Lifshitz point up to one-loop order. We employ a renormalization group treatment with $L$ independent scaling transformations associated to the various inequivalent subspaces in the anisotropic case in order to compute the ratio above and below the critical temperature and demonstrate its universality. Furthermore, the isotropic results with only one type of competition axes have also been shown to be universal. We describe how the simpler situations of $m$-axial Lifshitz points as well as ordinary (noncompeting) systems can be retrieved from the present framework.
description: 20 pages, no figures
PIFSC report on the American Samoa limited-access longline fishery from 1 January to 31 March 2013.
Creators: name: Pacific Islands Fisheries Science Center (U.S.), Fisheries Research And Monitoring Division.
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Pacific Islands Fisheries Science Center.
Year: 2016
Subjects: subject: Longlining (Fisheries)--Catch effort--American Samoa--Observations.

description: The following tables represent effort, retained catch (kept) and discards as reported on longline logsheets for the American Samoa limited-access longline fishery. Effort and catch-effort statistics are based on date of longline haul. Effort and catch statistics are based on logbook data submitted to the PIFSC, FRMD and represent an Oracle table LLDS_REPORT_STATS_AS database extraction done on 29 February 2016. When a statistic (number of vessels, trips) can involve dates of haul in 2 summary periods (i.e. years, semi-annual, quarters) the item is counted in both summary periods. Thus, a trip total is for 'partial and completed' trips. As such, these statistics are not additive (i.e. sum of 4 quarters is not the total for the year, etc).
title: Ordnung für das Department Physik der Fakultät für Naturwissenschaften an der Universität Paderborn : vom 22. Juni 2016
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2016
Subjects: subject: Sozialwissenschaften
subject: Bildung und Erziehung
subject: Hochschulbildung

description: Amtliche Mitteilungen / Universität Paderborn
PIFSC report on the American Samoa limited-access longline fishery from 1 April to 30 June 2013.
Creators: name: Pacific Islands Fisheries Science Center (U.S.), Fisheries Research And Monitoring Division.
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Pacific Islands Fisheries Science Center.
Year: 2016
Subjects: subject: Longlining (Fisheries)--Catch effort--American Samoa--Observations.

description: The following tables represent effort, retained catch (kept) and discards as reported on longline logsheets for the American Samoa limited-access longline fishery. Effort and catch-effort statistics are based on date of longline haul. Effort and catch statistics are based on logbook data submitted to the PIFSC, FRMD and represent an Oracle table LLDS_REPORT_STATS_AS database extraction done on 29 February 2016. When a statistic (number of vessels, trips) can involve dates of haul in 2 summary periods (i.e. years, semi-annual, quarters) the item is counted in both summary periods. Thus, a trip total is for 'partial and completed' trips. As such, these statistics are not additive (i.e. sum of 4 quarters is not the total for the year, etc).
Synthetic observations of simulated pillars of creation
Creators: name: Ercolano, Barbara
name: Dale, James E.
name: Gritschneder, Matthias
name: Westmoquette, Mark
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present synthetic observations of star-forming interstellar medium structures obtained by hydrodynamic calculations of a turbulent box under the influence of an ionising radiation field. The morphological appearance of the pillar-like structures in optical emission lines is found to be very similar to observations of nearby star forming regions. We calculate line profiles as a function of position along the pillars for collisionally excited [OIII]5007, [NII]6584 and [SII]6717, which show typical FWHM of 2--4 km/s. Spatially resolved emission line diagnostic diagrams are also presented which show values in general agreement with observations of similar regions. The diagrams, however, also highlight significant spatial variations in the line ratios, including values that would be classically interpreted as shocked regions based on one-dimensional photoionisation calculations. These values tend to be instead the result of lines of sight intersecting which intersect for large portions of their lenghts the ionised-to-neutral transition regions in the gas. We caution therefore against a straightforward application of classical diagnostic diagrams and one--dimensional photoionisation calculations to spatially resolved observations of complex three-dimensional star forming regions.
description: 7 pages, 5 figures, Accepted for MNRAS
QCD corrections to the production of $t\bar{t}γ$ at the ILC
Creators: name: Liu, Ning
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A precise calculation of the top quark pair production associated with a hard photon is essential for testing the electroweak property of the top quark in the Standard Model (SM). We investigate the one-loop QCD corrections to the process $e^{+}e^{-} \to t\bar{t}γ$ at the International Linear Collider (ILC), and find that the $K$-factor can be as large as 1.238 (1.105, 1.060) for a center-of-mass energy $\sqrt{s}=500 (800, 1500)$ GeV. The transverse momentum distributions of the top quark and photon are respectively shown at leading order (LO) and next-to-leading order(NLO). Due to the asymmetric rapidity distribution of the top (anti-top) quark, we also study the top quark forward-backward asymmetry ($A^{t}_{FB}$) in $t\bar{t}γ$ production at NLO, which is found to be 45.82 (55.25, 55.89)% for $\sqrt{s}=500 (800, 1500)$ GeV.
description: 12 pages, 5 figures, version acceptd by Phys. Lett. B
Shallow-water benthic habitats of Northeast Puerto Rico and Culebra Island.
Creators: name: Kagesten, Gustav
name: Sautter, Will
name: Edwards, Kimberly Ann, 1975-
name: Costa, Bryan
name: Kracker, Laura M.
name: Battista, Timothy Adams
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service.
Year: 2015
Subjects: subject: Benthos--Habitat--Puerto Rico--Remote sensing.

description: This report describes the development and assessment of shallow-water (0<35 m) benthic habitat maps for Northeast Puerto Rico and Culebra Island. The objective of this effort, conducted by NOAA's National Centers for Coastal Ocean Science (NCCOS) in partnership with the Departamento de Recursos Naturales y Ambientales (DRNA), was to provide spatially-explicit information describing the benthic habitat types and live coral cover present in and around the Northeast Reserves, a region selected by local managers as a priority area. The habitat map, generated using a combination of semi-automated classification and visual interpretation techniques, represent the first digital maps that describe nearly 100% of the seafloor in the area. The effort also marks the first time a high resolution satellite mosaic representing the seafloor has been provided for the full extent of this location, as well as a multi-resolution depth model combining all available hydrographic data in the region. This report consists of four primary components: 1) a description of the classification scheme used to categorize the different seafloor habitats; 2) a description of the techniques used to create the habitat maps; 3) an assessment of the habitat maps' thematic accuracies; and 4) a discussion and summary of the habitats in each area. These habitat maps will be used by Puerto Rico's Department of Natural and Environmental Resources (DNER), the University of Puerto Rico (UPR), NOAA and other local partners for planning research and monitoring activities, and will support the management and conservation of the Northeast Reserves. This work is part of NOAA Coral Reef Conservation Program's national coral reef ecosystem integrated mapping and monitoring studies throughout the U.S. Caribbean.
Charged Ball Static Star Model
Creators: name: Baranov, Alexandre M.
name: Vlasov, Zakhar V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Within the framework of General Relativity a model approach to a description of spherical gravitating static fluid balls with an electric charge is considered. The metric interval is written in Bondi's radiation coordinates. The total energy-momentum tensor as a direct sum of the perfect Pascal fluid energy-momentum tensor and the energy-momentum tensor of an electromagnetic field is chosen. The exact solution of the Einstein-Maxwell equations as an extension of similar solution with parabolic distribution of mass density is found.
description: 9 pages, Talk presented at XV International Scientific Meeting "Physical Interpretations of Relativity Theory" (PIRT-2009, Moscow-Liverpool-Sunderland), Moscow 6-9 July, 2009
title: Ein Bewertungsansatz zur Analyse von Zustandsmanagementsystemen in Verkehrsflugzeugen unter Berücksichtigung neuer Instandhaltungskonzepte
title: An assessment approach for the analysis of health management systems in commercial aircraft considering new maintenance concepts
titleType: AlternativeTitle
Creators: name: Hölzel, Nico
Publisher: name: DLR
Year: 2019
Subjects: subject: technology assessment
subject: aircraft maintenance
subject: diagnostic and prognostic technologies
subject: optimization of maintenance planning
subject: predictive maintenance
subject: life-cycle costs
classificationCode: 600
subject: Technik
classificationCode: 620
subject: Ingenieurwissenschaften

description: Diese Forschungsarbeit beschäftigt sich mit der Technologiebewertung von Zustandsmanagementsystemen und zustandsorientierten/prädiktiven Instandhaltungs-konzepten für zukünftige Verkehrsflugzeuge. Dazu wird ein Modell zur Diskret-Ereignis-Simulation des Flugzeugbetriebs, der Ausfall- und Instandhaltungsereignisse und der Wirkung von Diagnose- und Prognosetechnologien im Flugzeuglebenszyklus unter Einbindung eines Optimierungsansatzes für die dynamische Instandhaltungsplanung entwickelt. Für die Bewertung des ökonomischen Nutzens aus Betreibersicht kommt eine Kosten-Nutzen-Analyse auf Basis der Discounted Cash-Flow Methode zum Einsatz. In einem Anwendungsfall wird das operationelle und wirtschaftliche Potenzial von Zustands-managementsystemen am Beispiel eines Kurz-/Mittelstreckenflugzeugs aufgezeigt.
description: This research study deals with the technology assessment of health management systems and condition-based/predictive maintenance concepts for future commercial aircraft. A model for a discrete-event-simulation of aircraft operation, failure and maintenance events and the impacts of diagnostic and prognostic technologies in the aircraft life cycle with the integration of an optimization approach for the dynamic maintenance planning is developed. For the evaluation of the economic benefit from an operator's perspective, a cost-benefit analysis based on the discounted cash flow method is applied. In an application case, the operational and economic potential of health management systems is demonstrated by the example of a short/medium-haul aircraft.
Using Kepler transit observations to measure stellar spot belt migration rates
Creators: name: Llama, J.
name: Jardine, M.
name: Mackay, D. H.
name: Fares, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Planetary transits provide a unique opportunity to investigate the surface distributions of star spots. Our aim is to determine if, with continuous observation (such as the data that will be provided by the Kepler mission), we can in addition measure the rate of drift of the spot belts. We begin by simulating magnetic cycles suitable for the Sun and more active stars, incorporating both flux emergence and surface transport. This provides the radial magnetic field distribution on the stellar surface as a function of time. We then model the transit of a planet whose orbital axis is misaligned with the stellar rotation axis. Such a planet could occult spots at a range of latitudes. This allows us to complete the forward modelling of the shape of the transit lightcurve. We then attempt the inverse problem of recovering spot locations from the transit alone. From this we determine if transit lightcurves can be used to measure spot belt locations as a function of time. We find that for low-activity stars such as the Sun, the 3.5 year Kepler window is insufficient to determine this drift rate. For more active stars, it may be difficult to distinguish subtle differences in the nature of flux emergence, such as the degree of overlap of the "butterfly wings". The rate and direction of drift of the spot belts can however be determined for these stars. This would provide a critical test of dynamo theory.
description: 5 pages. Accepted for publication in Monthly Notices of the Royal Astronomical Society Letters
Structural health monitoring of carbon fiber reinforced polymers and carbon nanotube modified adhesive joints via electrical resistance measurement
Creators: name: Augustin, Till
Publisher: name: TUHH Universitätsbibliothek
Year: 2018
Subjects: subject: CFRP
subject: CNT
subject: electrical conductivity
subject: damage detection
subject: damage localization
subject: inkjet-printed conductive paths
classificationCode: 620
subject: Ingenieurwissenschaften

description: Diese Arbeit beschäftigt sich mit der Schadensdetektion an kohlenstofffaserverstärkten Kunststoffen und an kohlenstoffnanopartikelmodifizierten Klebeverbindungen mittels elektrischer Widerstandsmessung. Tinte auf der Basis von Silbernanopartikeln wird auf kohlenstofffaserverstärkte Kunststoffe und auf Prepregs aufgedruckt, und mechanische Tests mit simultanen Messungen des elektrischen Widerstandes zeigen die Möglichkeit, Delaminationen und Zwischenfaserbrüche zu detektieren. Darüber hinaus wird die Schlagschadendetektion sowohl für Plattenproben als auch für einen Omega-Stringer demonstriert. An Kohlenstoff-Nanoröhrchen modifizierten Epoxidharz-Klebverbindungen können sowohl Schlagschäden als auch die Schadensentwicklung unter zyklischer Belastung detektiert und lokalisiert werden.
description: This thesis deals with damage detection via electrical resistance measurements on carbon fiber reinforced polymers and on carbon nanoparticle modified adhesive joints. Silver nanoparticle based ink is printed onto carbon fiber reinforced polymers and onto prepregs and mechanical tests with simultaneous electrical resistance measurements demonstrate the possibility to detect delaminations and inter-fiber failures. In addition, impact damage detection is demonstrated for plate specimens as well as for an omega stringer. On carbon nanotube modified epoxy based adhesive joints, electrical resistance measurements show the possibility of accurate detection and localization of impact damages and damages developing in cyclic tests.
Estimates for the asymptotic behavior of the constants in the Bohnenblust--Hille inequality
Creators: name: Muñoz-Fernández, G. A.
name: Pellegrino, D.
name: Seoane-Sepúlveda, J. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: A classical inequality due to H.F. Bohnenblust and E. Hille states that for every positive integer $n$ there is a constant $C_{n}>0$ so that $$(\sum\limits_{i_{1},...,i_{n}=1}^{N}|U(e_{i_{^{1}}},...,e_{i_{n}})|^{\frac{2n}{n+1}})^{\frac{n+1}{2n}}\leq C_{n}||U||$$ for every positive integer $N$ and every $n$-linear mapping $U:\ell_{\infty}^{N}\times...\times\ell_{\infty}^{N}\rightarrow\mathbb{C}$. The original estimates for those constants from Bohnenblust and Hille are $$C_{n}=n^{\frac{n+1}{2n}}2^{\frac{n-1}{2}}.$$ In this note we present explicit formulae for quite better constants, and calculate the asymptotic behavior of these estimates, completing recent results of the second and third authors. For example, we show that, if $C_{\mathbb{R},n}$ and $C_{\mathbb{C},n}$ denote (respectively) these estimates for the real and complex Bohnenblust--Hille inequality then, for every even positive integer $n$, $$\frac{C_{\mathbb{R},n}}{\sqrtπ} = \frac{C_{\mathbb{C},n}}{\sqrt{2}} = 2^{\frac{n+2}{8}}\cdot r_n$$ for a certain sequence $\{r_n\}$ which we estimate numerically to belong to the interval $(1,3/2)$ (the case $n$ odd is similar). Simultaneously, assuming that $\{r_n\}$ is in fact convergent, we also conclude that $$\displaystyle \lim_{n \rightarrow \infty} \frac{C_{\mathbb{R},n}}{C_{\mathbb{R},n-1}} = \displaystyle \lim_{n \rightarrow \infty} \frac{C_{\mathbb{C},n}}{C_{\mathbb{C},n-1}}= 2^{1/8}.$$
description: 7 pages
On the implications of governance institutions for sustainability and climate change adaptation : a study of Whitehorse, Yukon
Creators: name: Vadeboncoeur, Nathan Noel
Publisher: name: University of British Columbia
Year: 2009

description: Climate change will pose a challenge to governance structures in areas like the Canadian North (Berkes et al. 2005:225). Climate research has often been divorced from its social context (Cohen et al. 1998:341) and its normative aspects have long been ignored (Swart et al. 2003:S20). Using the city of Whitehorse, Yukon Territory, as an example, this thesis explores how social context can influence the approaches of governance institutions to environmental policy. This study examines the environmental beliefs of members of the City of Whitehorse and Yukon Territorial Government (YTG) to establish if there are institutional cultural norms promoting a particular environmental orientation among employees. Institutions have been shown to exert pressures on their employees to conform to institutional cultural norms (DiMaggio and Powell, 1983), and there is a broad literature establishing connections between environmental beliefs and values and environmental actions (e.g. Van Liere and Dunlap, 1980; Stern et al. 1995a; Stern et al. 1995b; Stern et al. 2000; Poortinga et al. 2004; Schultz et al. 2005). Thus, institutional environmental belief norms may influence the way City and YTG employees perceive environmental issues and affect the way they plan adaptation strategies. We found some evidence that social forces within institutions influence environmental beliefs. Beliefs regarding one’s confidence in technology to address environmental problems are likely influenced by on-the-job socialization, while other beliefs are not, and may be selected for through selective hiring. Personal definitions of sustainability were strongly related to institutional affiliation, as were perceptions of a sustainability policy document. Our results indicate that definitions of sustainability, and to a lesser extent, environmental beliefs, are influenced in part by institutional cultural norms. These norms have the potential to affect policy choices and shape the adaptation strategies of governance institutions.
Spin-analysis of s-channel diphoton resonances at the LHC
Creators: name: Kumar, M. C.
name: Mathews, Prakash
name: Pankov, A. A.
name: Paver, N.
name: Ravindran, V.
name: Tsytrinov, A. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The high mass neutral quantum states envisaged by theories of physics beyond the standard model can at the hadron colliders reveal themselves through their decay into a pair of photons. Once such a peak in the diphoton invariant mass distribution is discovered, the determination of its spin through the distinctive photon angular distributions is needed in order to identify the associated nonstandard dynamics. We here discuss the discrimination of the spin-2 Randall-Sundrum graviton excitation against the hypothesis of a spin-0 exchange giving the same number of events under the peak, by means of the angular analysis applied to resonant diphoton events expected to be observed at the LHC. The spin-0 hypothesis is modelled by an effective interaction of a high mass gauge singlet scalar particle interacting with the standard model fields. The basic observable of our analysis is the symmetrically integrated angular asymmetry $A_{CE}$, calculated for both graviton and scalar s-channel exchanges to next-to-leading order in QCD.
description: 28 pages, 13 figures, 1 table
title: Fünfte Satzung zur Änderung der Prüfungsordnung für den Bachelorteilzeitstudiengang Elektrotechnik der Fakultät für Elektrotechnik, Informatik und Mathematik an der Universität Paderborn : vom 26. Mai 2016
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2016
Subjects: subject: Sozialwissenschaften
subject: Bildung und Erziehung
subject: Hochschulbildung

description: Amtliche Mitteilungen / Universität Paderborn
PIFSC report on the American Samoa limited-access longline fishery from 1 July to 30 September 2013.
Creators: name: Pacific Islands Fisheries Science Center (U.S.). Fisheries Research And Monitoring Division.
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Pacific Islands Fisheries Science Center.
Year: 2016
Subjects: subject: Longlining (Fisheries)--Catch effort--American Samoa--Observations.

description: The following tables represent effort, retained catch (kept) and discards as reported on longline logsheets for the American Samoa limited-access longline fishery. Effort and catch-effort statistics are based on date of longline haul. Effort and catch statistics are based on logbook data submitted to the PIFSC, FRMD and represent an Oracle table LLDS_REPORT_STATS_AS database extraction done on 29 February 2016. When a statistic (number of vessels, trips) can involve dates of haul in 2 summary periods (i.e. years, semi-annual, quarters) the item is counted in both summary periods. Thus, a trip total is for 'partial and completed' trips. As such, these statistics are not additive (i.e. sum of 4 quarters is not the total for the year, etc).
title: Dritte Satzung zur Änderung der Prüfungsordnung für den Masterteilzeitstudiengang Elektrotechnik der Fakultät für Elektrotechnik, Informatik und Mathematik an der Universität Paderborn : vom 26. Mai 2016
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2016
Subjects: subject: Sozialwissenschaften
subject: Bildung und Erziehung
subject: Hochschulbildung

description: Amtliche Mitteilungen / Universität Paderborn
title: Die Wirkung von Ultraschall auf die mikrobiologische Diversität und Abbauleistung eines biologischen Reaktors zur Abwasserreinigung
title: The effect of ultrasound on the microbial diversity and the purification rate of a biological reactor for wastewater treatment
titleType: AlternativeTitle
Creators: name: Banduch, Izabela
Publisher: name: TUHH Universitätsbibliothek
Year: 2011
Subjects: subject: Biomasse
subject: Belebtschlamm
subject: Aktivität
subject: Abwasserreinigung
subject: Ultraschall
subject: biomass
subject: activated sludge
subject: activity
subject: wastewater treatment
subject: ultrasound
classificationCode: 620
subject: Ingenieurwissenschaften
classificationCode: 58.51
subject: Abwassertechnik, Wasseraufbereitung
subject: Belebtschlammverfahren
subject: Abwasserreinigung
subject: Ultraschall

description: Seit der Etablierung des Belebtschlammverfahens im Alltag ist man auf der Suche nach neuen Lösungen um den biologischen Prozess der Abwasserreinigung nachhaltig und wirtschaftlich zu optimieren. Der in dieser Arbeit untersuchte Einsatz des Ultraschalls zeigte sich als geeignete Technik. Nach der Ultraschalleinwirkung werden optimale morphologische Veränderungen in der Flockenstruktur erreicht, infolge dessen wird die mikrobielle Aktivität im Belebtschlamm gesteigert. Darüber hinaus durch Auflösung eines Teils des Belebtschlammes wird eine Verringerung der überschüssigen Biomasse beobachtet.
description: Since the establishment of the activited sludge process in everyday life, we are constantly in search of new solutions to optimize the biologic process of sewage purification in a sustinable and economic way. The application of ultrasonic sound, which is investigated in this thesis, manifests itself as a qualified technique. After the influence of ultrasound an optimal morphological modification in the flake structure is achieved and the microbial activity in the activated sludge is enhaced. Furthermore, we can observe a reduction of the excess biomass by pro-rata dissolution of the activated sludge.
Nature of yrast excitations near N=40: Level structure of Ni-67
Creators: name: Zhu, S.
name: Janssens, R. V. F.
name: Carpenter, M. P.
name: Chiara, C. J.
name: Broda, R.
name: Fornal, B.
name: Hoteling, N.
name: Krolas, W.
name: Lauritsen, T.
name: Pawlat, T.
name: Seweryniak, D.
name: Stefanescu, I.
name: Stone, J. R.
name: Walters, W. B.
name: Wang, X.
name: Wrzesinski, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Excited states in Ni-67 were populated in deep-inelastic reactions of a Ni-64 beam at 430 MeV on a thick U-238 target. A level scheme built on the previously known 13 micro-s isomer has been delineated up to an excitation energy of ~5.3 MeV and a tentative spin and parity of (21/2-). Shell model calculations have been carried out using two effective interactions in the f5/2pg9/2 model space with a Ni-56 core. Satisfactory agreement between experiment and theory is achieved for the measured transition energies and branching ratios. The calculations indicate that the yrast states are associated with rather complex configurations, herewith demonstrating the relative weakness of the N=40 subshell gap and the importance of multi particle-hole excitations involving the g9/2 neutron orbital.
description: Accepted by Physical Review C
Molecular hydrogen jets and outflows in the Serpens south filamentary cloud
Creators: name: Teixeira, G. D. C.
name: Kumar, M. S. N.
name: Bachiller, R.
name: Grave, J. M. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We aimed to map the jets and outflows from the Serpens South star forming region and find an empirical relationship between the magnetic field and outflow orientation. Near-infrared H2 v=1-0 S(1) 2.122μm -line imaging of the \sim 30'-long filamentary shaped Serpens South star forming region was carried out. K s broadband imaging of the same region was used for continuum subraction. Candidate driving sources of the mapped jets/outflows are identified from the list of known protostars and young stars in this region, which was derived from studies using recent Spitzer and Herschel telescope observations. 14 Molecular Hydrogen emission-line objects(MHOs) are identified using our continuum-subtracted images. They are found to constitute ten individual flows. Out of these, nine flows are located in the lower-half(southern) part of the Serpens South filament, and one flow is located at the northern tip of the filament. Four flows are driven by well-identified Class 0 protostars, while the remaining six flows are driven by candidate protostars mostly in the Class I stage, based on the Spitzer and Herschel observations. The orientation of the outflows is systematically perpendicular to the direction of the near-infrared polarization vector, recently published in the literature. No significant correlation was observed between the orientation of the flows and the axis of the filamentary cloud.
description: Accepted by A&A for publication. 7 pages, 5 figures