cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Community Detection in Quantum Complex Networks
Creators: name: Faccin, Mauro
name: Migdał, Piotr
name: Johnson, Tomi H.
name: Bergholm, Ville
name: Biamonte, Jacob D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Determining community structure is a central topic in the study of complex networks, be it technological, social, biological or chemical, in static or interacting systems. In this paper, we extend the concept of community detection from classical to quantum systems---a crucial missing component of a theory of complex networks based on quantum mechanics. We demonstrate that certain quantum mechanical effects cannot be captured using current classical complex network tools and provide new methods that overcome these problems. Our approaches are based on defining closeness measures between nodes, and then maximizing modularity with hierarchical clustering. Our closeness functions are based on quantum transport probability and state fidelity, two important quantities in quantum information theory. To illustrate the effectiveness of our approach in detecting community structure in quantum systems, we provide several examples, including a naturally occurring light-harvesting complex, LHCII. The prediction of our simplest algorithm, semiclassical in nature, mostly agrees with a proposed partitioning for the LHCII found in quantum chemistry literature, whereas our fully quantum treatment of the problem uncovers a new, consistent, and appropriately quantum community structure.
description: 16 pages, 4 figures, 1 table
title: Grabungen des Landesdenkmalamtes in einer römischen Villa am Hochrhein (Grenzach, Gem. Grenzach-Wyhlen, Kreis Lörrach)
Creators: name: Fingerlin, Gerhard
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 13, Nr. 1 (1984), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Some results on injectivity and multistationarity in chemical reaction networks
Creators: name: Banaji, Murad
name: Pantea, Casian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 80A30, 15A15, 37C25

description: The goal of this paper is to gather and develop some necessary and sufficient criteria for injectivity and multistationarity in vector fields associated with a chemical reaction network under a variety of more or less general assumptions on the nature of the network and the reaction rates. The results are primarily linear algebraic or matrix-theoretic, with some graph-theoretic results also mentioned. Several results appear in, or are close to, results in the literature. Here, we emphasise the connections between the results, and where possible, present elementary proofs which rely solely on basic linear algebra and calculus. A number of examples are provided to illustrate the variety of subtly different conclusions which can be reached via different computations. In addition, many of the computations are implemented in a web-based open source platform, allowing the reader to test examples including and beyond those analysed in the paper.
description: final (uncorrected) accepted version
title: Inhalt
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 13, Nr. 2 (1984), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Distributed Estimation of a Parametric Field: Algorithms and Performance Analysis
Creators: name: Talarico, Salvatore
name: Schmid, Natalia A.
name: Alkhweldi, Marwan
name: Valenti, Matthew C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper presents a distributed estimator for a deterministic parametric physical field sensed by a homogeneous sensor network and develops a new transformed expression for the Cramer-Rao lower bound (CRLB) on the variance of distributed estimates. The proposed transformation reduces a multidimensional integral representation of the CRLB to an expression involving an infinite sum. Stochastic models used in this paper assume additive noise in both the observation and transmission channels. Two cases of data transmission are considered. The first case assumes a linear analog modulation of raw observations prior to their transmission to a fusion center. In the second case, each sensor quantizes its observation to $M$ levels, and the quantized data are communicated to a fusion center. In both cases, parallel additive white Gaussian channels are assumed. The paper develops an iterative expectation-maximization (EM) algorithm to estimate unknown parameters of a parametric field, and its linearized version is adopted for numerical analysis. The performance of the developed numerical solution is compared to the performance of a simple iterative approach based on Newton's approximation. While the developed solution has a higher complexity than Newton's solution, it is more robust with respect to the choice of initial parameters and has a better estimation accuracy. Numerical examples are provided for the case of a field modeled as a Gaussian bell, and illustrate the advantages of using the transformed expression for the CRLB. However, the distributed estimator and the derived CRLB are general and can be applied to any parametric field. The dependence of the mean-square error (MSE) on the number of quantization levels, the number of sensors in the network and the SNR of the observation and transmission channels are analyzed. The variance of the estimates is compared to the derived CRLB.
description: 12 pages, 12 figures, IEEE Transactions on Signal Processing, accepted for publication
Improving the value of wind energy through geographic diversity of wind farms
Creators: Pawlenchuk, Taylor J
Publisher: name: University of Alberta Library
Year: 2023

Wind farms are often concentrated geographically as they are cited in areas with strong resources. While this maximizes energy generation, it can decrease the value of that energy, particularly as the relative amount of wind increases in the overall system. Wind energy is growing rapidly in Alberta, and this research evaluates the potential to increase the value of the energy for new wind farms by building them in regions with lower annual wind speeds but less correlation to the rest of the fleet to capture higher market prices. The research identifies a trend between the deviation of the location’s potential generation output from the fleet’s average and the average annual energy revenue for a wind farm at that location based on data from existing wind farms. This trend is applied to predict the average annual energy revenue, payback periods, and internal rate of return for twelve candidate wind farm sites in the northern portion of the province. This prediction suggests that these locations have competitive payback periods between 5 and 9 years and internal rates of return between 15% and 33%.  Alberta’s electricity market was also simulated with seven of these candidate locations added as potential new wind farms using Energy Exemplar’s Aurora software. The simulation built wind energy capacity at each of the seven hypothetical sites, for a total of 4727 MW of a possible 7000 MW. The simulation was also repeated with

renewable energy emissions credits removed, and although there was significantly less wind energy built, two of the hypothetical sites had capacity built for a total of 1020 MW, and made up a larger portion of the wind energy additions, suggesting that geographically diverse wind farms may be economical in Alberta’s electricity market.
title: Steinzerfall - Gefährdung und Zerstörung von Kulturdenkmalen
Creators: name: Grunsky, Eberhard
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 13, Nr. 2 (1984), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
A bilateral extension of the $q$-Selberg integral
Creators: name: Ito, Masahiko
name: Forrester, Peter J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: Primary 33D15, 33D67, Secondary 39A13

description: A multi-dimensional bilateral $q$-series extending the $q$-Selberg integral is studied using concepts of truncation, regularization and connection formulae. Following Aomoto's method, which involves regarding the $q$-series as a solution of a $q$-difference equation fixed by its asymptotic behavior, an infinite product evaluation is obtained. The $q$-difference equation is derived applying the shifted symmetric polynomials introduced by Knop and Sahi. As a special case of the infinite product formula, Askey--Evans's $q$-Selberg integral evaluation and its generalization by Tarasov--Varchenko and Stokman is reclaimed, and an explanation in the context of Aomoto's setting is thus provided.
description: 36 pages. V6: minor corrections. arXiv admin note: text overlap with arXiv:1308.6650
Categorical duality for Yetter-Drinfeld algebras
Creators: name: Neshveyev, Sergey
name: Yamashita, Makoto
Publisher: name: arXiv
Year: 2013
Subjects: subject: Operator Algebras (math.OA)
subject: Category Theory (math.CT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We study tensor structures on (Rep G)-module categories defined by actions of a compact quantum group G on unital C*-algebras. We show that having a tensor product which defines the module structure is equivalent to enriching the action of G to the structure of a braided-commutative Yetter-Drinfeld algebra. This shows that the category of braided-commutative Yetter-Drinfeld G-C*-algebras is equivalent to the category of generating unitary tensor functors from Rep G into C*-tensor categories. To illustrate this equivalence, we discuss coideals of quotient type in C(G), Hopf-Galois extensions and noncommutative Poisson boundaries.
description: 24 pages; v3: the last section was split off as a separate manuscript arxiv:1405.6574, as it no longer relies on this paper, a converse to Tomatsu's result on Poisson boundaries added; v4: minor corrections, to appear in Doc Math
Tracing the contraction of the pre-stellar core L1544 with HC$^{17}$O$^+$ $J$ = 1-0 emission
Creators: name: Asensio, J. Ferrer
name: Spezzano, S.
name: Caselli, P.
name: Alves, F. O.
name: Sipilä, O.
name: Redaelli, E.
name: Bizzocchi, L.
name: Lique, F.
name: Mullins, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Spectral line profiles of several molecules observed towards the pre-stellar core L1544 appear double-peaked. For abundant molecular species this line morphology has been linked to self-absorption. However, the physical process behind the double-peaked morphology for less abundant species is still under debate. In order to understand the cause behind the double-peaked spectra of optically thin transitions and their link to the physical structure of pre-stellar cores, we present high-sensitivity and high-spectral resolution HC$^{17}$O$^+$ $J =$1-0 observations towards the dust peak in L1544. We observed the HC$^{17}$O$^+$ (1-0) spectrum with the Institut de Radioastronomie Millimétrique (IRAM) 30m telescope. By using new state-of-the-art collisional rate coefficients, a physical model for the core and the fractional abundance profile of HC$^{17}$O$^+$, the hyperfine structure of this molecular ion is modelled for the first time with the radiative transfer code LOC applied to the predicted chemical structure of a contracting pre-stellar core. We applied the same analysis to the chemically related C$^{17}$O molecule. The observed HC$^{17}$O$^+$(1-0) and C$^{17}$O(1-0) lines have been successfully reproduced with a non-local thermal equilibrium (LTE) radiative transfer model applied to chemical model predictions for a contracting pre-stellar core. An upscaled velocity profile (by 30%) is needed to reproduce the HC$^{17}$O$^+$(1-0) observations. The double peaks observed in the HC$^{17}$O$^+$(1-0) hyperfine components are due to the contraction motions at densities close to the critical density of the transition ($\sim$10$^{5}$ cm$^{-3}$) and to the fact that the HCO$^{+}$ fractional abundance decreases toward the centre.
title: Das große römische Landgut bei Großsachsenheim, Stadt Sachsenheim, Kreis Ludwigsburg
Creators: name: Stork, Ingo
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 13, Nr. 2 (1984), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
A master equation for a two-sided optical cavity
Creators: name: Barlow, Thomas M.
name: Bennett, Robert
name: Beige, Almut
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum optical systems, like trapped ions, are routinely described by master equations. The purpose of this paper is to introduce a master equation for two-sided optical cavities with spontaneous photon emission. To do so, we use the same notion of photons as in linear optics scattering theory and consider a continuum of traveling-wave cavity photon modes. Our model predicts the same stationary state photon emission rates for the different sides of a laser-driven optical cavity as classical theories. Moreover, it predicts the same time evolution of the total cavity photon number as the standard standing-wave description in experiments with resonant and near-resonant laser driving. The proposed resonator Hamiltonian can be used, for example, to analyse coherent cavity-fiber networks [Kyoseva et al., New J. Phys. 14, 023023 (2012)].
description: 11 pages, 2 figures, simplified version
title: Mitteilung
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 13, Nr. 2 (1984), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Die „Siedlung Forschner" - letztes Relikt bronzezeitlichen Siedlungswesens am Federsee
Creators: name: Keefer, Erwin
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 13, Nr. 3 (1984), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Stochastic perturbation theory: a prequel to Reptation Quantum Monte Carlo
Creators: name: Baroni, Stefano
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: I present a different approach to Rayleigh-Schrödinger perturbation theory, based on Laplace transforms and polynomial theory, yielding an iterative expression for the perturbative expansion of the energy of the non-degenerate ground state of a quantum system, which easily lends itself to symbolic computation. A stochastic interpretation of the various perturbative corrections naturally leads to a re-summation scheme that is equivalent to Reptation Quantum Monte Carlo and that actually provided the original motivation to its development in the late nineties.
description: 8 pages, no figures. Paper presented at CECAM workshop on "Recent developments in quantum Monte Carlo", Rome, October 21-22, 2021
Pemasaran Digital: Peta Sains Lapangan dan Arah Penelitian di Masa Depan
Creators: name: Hermawan, Budi
Publisher: name: figshare
Year: 2023
Subjects: Marketing technology

description: Tujuan studi ini untuk menganalisis dan mengkategorikan produksi ilmiah di bidang pemasaran digital dengan menggunakan analisis bibliometrik.
title: Zur Wiederherstellung einiger Räume in der Landfriedschen Villa in Heidelberg
Creators: name: Göricke, Joachim
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 13, Nr. 3 (1984), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Lofting of low speed ejecta produced in the DART experiment and production of a dust cloud
Creators: name: Tancredi, Gonzalo
name: Liu, Po-Yen
name: Campo-Bagatin, Adriano
name: Moreno, Fernando
name: Domínguez, Bruno
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: NASA sent the DART (Double Asteroid Redirection Test) mission to impact Dimorphos, the satellite of the asteroid binary system (65803) Didymos. DART will release LICIACube prior to impact to obtain high-resolution post-impact images. The impact will produce a crater and a large amount of material ejected at high speed (several tens of m/s), producing an ejecta cone that will quickly disperse. We analyzed an additional effect: the lofting of material at low velocity due to the generation of seismic waves that propagate inside Dimorphos, producing surface shaking far from the impact point. We divide the process into different stages: from the generation of impact-induced waves, the interaction of them with surface particles, the ejection of dust particles at velocities, and the prediction of the observability of the dust coma and trail. We anticipate the following observable effects: i) generation of a dust cloud that will produce a hazy appearance of Dimorphos' surface, detectable by LICIACube; ii) brightness increase of the binary system due to enhancement of the cross section produced by the dust cloud; iii) generation of a dust trail, similar to those observed in some Active Asteroids, which can last for several weeks after impact. Numerical prediction of the detectability of these effects depends on the amount and size distribution of ejected particles, which are largely unknown. In case these effects are observable, an inversion method can be applied to compute the amount of ejected material and its velocity distribution, and discuss the relevance of the shaking process.
description: 12 pages, 13 figures
Light Sterile Neutrinos, Left-Right Symmetry, and $0νββ$ Decay
Creators: name: de Vries, Jordy
name: Li, Gang
name: Ramsey-Musolf, Michael J.
name: Vasquez, Juan Carlos
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate neutrinoless double beta ($0νββ$) decay rates in minimal left-right symmetric models in presence of relatively light right-handed neutrinos. By use of an effective field theory approach, we systematically include all contributions in the model as well as the dependence of the decay amplitude on the masses of right-handed neutrinos. In type-I and type-II seesaw scenarios, we analyze the impact of right-handed neutrinos heavier than about 10 MeV, showing that this effect can lead to a detection of $0νββ$ decay in the next-generation experiments even for the normal hierarchy and a relatively large right-handed scale set by the mass of hypothetical right-handed gauge bosons. Finally, we comment on a possible connection between light right-handed neutrinos and the strong CP problem.
description: 36 pages, 7 figures
title: Veröffentlichungen des Landesdenkmalamtes
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 13, Nr. 4 (1984), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Strange mesons in nuclei and neutron stars
Creators: name: Tolos, Laura
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The present status in the field of strange mesons in nuclei and neutron stars is reviewed. In particular, the $\bar K N$ interaction, that is governed by the presence of the $Λ(1405)$, is analyzed and the formation of the $\bar K NN$ bound state is discussed. Moreover, the properties of $\bar K$ in dense nuclear matter are studied, in connection with strangeness production in nuclear collisions and kaon condensation in neutron stars.
description: 6 pages, 1 figure, 1 table, contribution to the proceedings of the 14th International Conference on Hypernuclear and Strange Particle Physics (HYP2022), Prague (Czech Republic), June 27-July 1, 2022
title: Gesamtanlagen - Bedeutung und Aufgaben für die Denkmalpflege
Creators: name: Strobel, Richard
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 14, Nr. 1 (1985), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Der Rote Bau in Biberach. Ein früher Sichtbacksteinbau des 19. Jahrhunderts in Oberschwaben
Creators: name: Wortmann, Reihnard
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 15, Nr. 1 (1986), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Lukas Högl: Burgen im Fels. Eine Untersuchung der mittelalterlichen Höhlen-, Grotten- und Balmburgen der Schweiz. Olten und Freiburg im Breisgau, 1986 ; Quellennachweis für die Abbildungen
Creators: name: Seidenspinner, Wolfgang
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 15, Nr. 4 (1986), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Large scale rank of Teichmuller space
Creators: name: Eskin, Alex
name: Masur, Howard
name: Rafi, Kasra
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 30F60, 20F65

description: Let X be quasi-isometric to either the mapping class group equipped with the word metric, or to Teichmuller space equipped with either the Teichmuller metric or the Weil-Petersson metric. We introduce a unified approach to study the coarse geometry of these spaces. We show that the quasi-Lipschitz image in X of a box in R^n is locally near a standard model of a flat in X. As a consequence, we show that, for all these spaces, the geometric rank and the topological rank are equal. The methods are axiomatic and apply to a larger class of metric spaces.
description: Some corrections have been made. Also, the coarse differentiation statement has been modified to state that a quasi-Lipschitz map is "differentiable almost everywhere"
Hoja de rota modelo para desarrollo de Cursos
Creators: name: MetaDocencia Team
Publisher: name: Zenodo
Year: 2022
Subjects: Ciencia Abierta
pedagogía
docencia
enseñanza
Teaching
Comunidad
Cursos
Latin America
clases virtuales

description: En este documento se ofrecen pautas, sugerencias y pasos para el diseño de cursos.
Subband coding for large-scale scientific simulation data using JPEG 2000
Creators: name: Brislawn, Christopher M.
name: Woodring, Jonathan L.
name: Mniszewski, Susan M.
name: DeMarle, David E.
name: Ahrens, James P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences
subject: E.4
subject: 94A29

description: The ISO/IEC JPEG 2000 image coding standard is a family of source coding algorithms targeting high-resolution image communications. JPEG 2000 features highly scalable embedded coding features that allow one to interactively zoom out to reduced resolution thumbnails of enormous data sets or to zoom in on highly localized regions of interest with very economical communications and rendering requirements. While intended for fixed-precision input data, the implementation of the irreversible version of the standard is often done internally in floating point arithmetic. Moreover, the standard is designed to support high-bit-depth data. Part 2 of the standard also provides support for three-dimensional data sets such as multicomponent or volumetric imagery. These features make JPEG 2000 an appealing candidate for highly scalable communications coding and visualization of two- and three-dimensional data produced by scientific simulation software. We present results of initial experiments applying JPEG 2000 to scientific simulation data produced by the Parallel Ocean Program (POP) global ocean circulation model, highlighting both the promise and the many challenges this approach holds for scientific visualization applications.
description: 4 pages, 5 figures. Version 2: added BibTeX citation (BibTeX_citation.txt) as an ancillary file
Interaction-controlled impurity transport in trapped mixtures of ultracold bosons
Creators: name: Becker, Judith
name: Pyzh, Maxim
name: Schmelcher, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We explore the dynamical transport of an impurity between different embedding majority species which are spatially separated in a double well. The transfer and storage of the impurity is triggered by dynamically changing the interaction strengths between the impurity and the two majority species. We find a simple but efficient protocol consisting of linear ramps of majority-impurity interactions at designated times to pin or unpin the impurity. Our study of this highly imbalanced few-body triple mixture is conducted with the multi-layer multi-configuration time-dependent Hartree method for atomic mixtures which accounts for all interaction-induced correlations. We analyze the dynamics in terms of single-particle densities, entanglement growth and provide an effective potential description involving mean-fields of the interacting components. The majority components remain self-trapped in their individual wells at all times, which is a crucial element for the effectiveness of our protocol. During storage times each component performs low-amplitude dipole oscillations in a single well. Unexpectedly, the inter-species correlations possess a stabilizing impact on the transport and storage properties of the impurity particle.
Nanocrystal-based optical diffusers for white LED lighting: inverse design achieved by machine learning technologies
Creators: Li, Gangyi
Publisher: name: University of Alberta Library
Year: 2023

Illumination receives a great deal of attention as white lighting-emitting diodes (WLEDs) become energy-efficient light sources in households and commercial buildings, on streets and highways, and at stadiums and construction sites. In general, lenses and mirrors are used to control the spatial distribution of WLED light. In this thesis, we propose to use optical diffuser, the key optical device in scattering optics, to achieve the desired figures of merit for WLEDs.  Optical diffusers are typically used to create soft light (similar brightness from any angle of view), however, here we can alter the concentration of nanocrystals in the nanocomposite film (optical diffuser) to control its optical property. Machine learning is employed to achieve the inverse design of the optical diffuser pattern on WLEDs, and this design task is beyond human capacities which are generally carried out using the brute force approach (solving a problem through exhaustion). In this thesis work, we have constructed the neural network architectures for machine learning and used them to achieve the inverse design of a symmetric pattern of optical diffusers (two-dimensional design) on WLED modules. Furthermore, we focus on achieving the inverse design of non-symmetric patterns of optical diffusers (three-dimensional design), and several pre-defined patterns of WLED light intensity are demonstrated for showing the success of our efforts.
Polynomial-time perfect matchings in dense hypergraphs
Creators: name: Keevash, Peter
name: Knox, Fiachra
name: Mycroft, Richard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C65, 05C70

description: Let $H$ be a $k$-graph on $n$ vertices, with minimum codegree at least $n/k + cn$ for some fixed $c > 0$. In this paper we construct a polynomial-time algorithm which finds either a perfect matching in $H$ or a certificate that none exists. This essentially solves a problem of Karpiński, Ruciński and Szymańska; Szymańska previously showed that this problem is NP-hard for a minimum codegree of $n/k - cn$. Our algorithm relies on a theoretical result of independent interest, in which we characterise any such hypergraph with no perfect matching using a family of lattice-based constructions.
description: 64 pages. Update includes minor revisions. To appear in Advances in Mathematics
Economics of Preconditioning Beef Cattle
Creators: Sydora, Michael
Publisher: name: University of Alberta Library
Year: 2023

Calf morbidity and mortality due to Bovine Respiratory Disease (BRD) is highest in the first two weeks after arrival at the feedlot. Feedlots use antimicrobial drugs (AMDs) to maintain calf health, which contributes to general antimicrobial resistance (AMR). AMR causes externality costs to human health care. Preconditioning is a practice designed to prepare calves for the transition to a feedlot and reduce antimicrobial use (AMU). Despite a large literature on the improved health of preconditioned (PC) calves at the feedlot, preconditioning has not been widely adopted in Canada. I hypothesize that this is mainly due to the presence of uncompensated externalities leading to a market failure for PC calves. Data from a University of Calgary study was used to examine three economic aspects of preconditioning: (1) the impact of PC calves on AMU and the AMR externality costs to human health, (2) feedlot cost differences for PC and non-PC calves, and (3) an updated profitability analysis of preconditioning for cow-calf operations. The results showed that the expected number of AMD treatments for BRD was 37-53% lower for PC calves, which would reduce the negative externality of AMR in Alberta and Saskatchewan by up to $450,000 for each annual fall feedlot intake. PC calves showed a reduction in feedlot health costs of $8.57-$13.86 per head compared to non-PC calves, and were not adversely impacted by commingling with non-PC calves. However there was no difference in the net return from PC calves compared to non-PC calves. Cost-return analysis for preconditioning at the cow-calf level showed a small loss of $38.57/head, suggesting that there is no financial incentive for cow-calf producers to precondition calves prior to selling in the absence of additional premiums.
title: Bericht über das erste Kolloquium zum donauländisch beeinflußten Frühneolithikum in Straßburg vom 20. und 21. November 1996: Rolle und Bedeutung der Jagd während des donauländisch beeinflußten Frühneolithikums
Creators: name: Arbogast, Rose-Marie
name: Jeunesse, Christian
name: Schibler, Jörg
Publisher: name: University Library Heidelberg
Year: 2014

description: [nicht vorhanden]
A Measurement of the Millimeter Emission and the Sunyaev-Zel'dovich Effect Associated with Low-Frequency Radio Sources
Creators: name: Gralla, Megan B.
name: Crichton, Devin
name: Marriage, Tobias A.
name: Mo, Wenli
name: Aguirre, Paula
name: Addison, Graeme E.
name: Asboth, V.
name: Battaglia, Nick
name: Bock, James
name: Bond, J. Richard
name: Devlin, Mark J.
name: Dunner, Rolando
name: Hajian, Amir
name: Halpern, Mark
name: Hilton, Matt
name: Hincks, Adam D.
name: Hlozek, Renee A.
name: Huffenberger, Kevin M.
name: Hughes, John P.
name: Ivison, R. J.
name: Kosowsky, Arthur
name: Lin, Yen-Ting
name: Marsden, Danica
name: Menanteau, Felipe
name: Moodley, Kavilan
name: Morales, Gustavo
name: Niemack, Michael D.
name: Oliver, Seb
name: Page, Lyman A.
name: Partridge, Bruce
name: Reese, Erik D.
name: Rojas, Felipe
name: Sehgal, Neelima
name: Sievers, Jon
name: Sifon, Cristobal
name: Spergel, David N.
name: Staggs, Suzanne T.
name: Switzer, Eric R.
name: Viero, Marco P.
name: Wollack, Edward J.
name: Zemcov, Michael B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a statistical analysis of the millimeter-wavelength properties of 1.4 GHz-selected sources and a detection of the Sunyaev-Zel'dovich (SZ) effect associated with the halos that host them. The Atacama Cosmology Telescope (ACT) has conducted a survey at 148 GHz, 218 GHz and 277 GHz along the celestial equator. Using samples of radio sources selected at 1.4 GHz from FIRST and NVSS, we measure the stacked 148, 218 and 277 GHz flux densities for sources with 1.4 GHz flux densities ranging from 5 to 200 mJy. At these flux densities, the radio source population is dominated by active galactic nuclei (AGN), with both steep and flat spectrum populations, which have combined radio-to-millimeter spectral indices ranging from 0.5 to 0.95, reflecting the prevalence of steep spectrum sources at high flux densities and the presence of flat spectrum sources at lower flux densities. The thermal SZ effect associated with the halos that host the AGN is detected at the 5$σ$ level through its spectral signature. When we compare the SZ effect with weak lensing measurements of radio galaxies, we find that the relation between the two is consistent with that measured by Planck for local bright galaxies. We present a detection of the SZ effect in some of the lowest mass halos (average $M_{200}\approx10^{13}$M$_{\odot}h_{70}^{-1}$) studied to date. This detection is particularly important in the context of galaxy evolution models, as it confirms that galaxies with radio AGN also typically support hot gaseous halos. With Herschel observations, we show that the SZ detection is not significantly contaminated by dust. We show that 5 mJy$
description: Accepted version. Some reorganization of discussion, added appendices. Other minor edits
Production and decay rates of excited leptons in a left-right symmetric scenario
Creators: name: Banerjee, Piyali
name: Yajnik, Urjit A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We merge two leading Beyond Standard Model scenarios, namely compositeness and left-right symmetry, and probe the resulting collider signatures in the leptonic case. The constraints on composite models for fermions leave open the possibility of vector like excitations of Standard Model (SM) fermions. Here we consider the possibility of low scale left-right gauge symmetry $SU(2)_{R} \times SU(2)_{L} \times U(1)_ {B-L}$, with the simplifying assumption that the right like excited sector of fermions is significantly heavier than the excitations of the left chiral fermions. It is found that the right handed currents still contribute to observable processes, and alter the existing bounds on the scale of compositeness. The cross section times branching ratio of the photon decay channel is strongly depressed, bringing down the exclusion limit of the mass of excited electrons from about 2 TeV to below 1 TeV. On the other hand, cross section times branching ratio of the Z decay channel is significantly enhanced and remains greater than that of the photon channel. We thus propose analyzing the Z decay channel in existing collider data in order to search for signature of left-right symmetry as well as excited leptons with masses above 1 TeV.
description: 10 figures updated. Incorporated constraints from muon anomalous magnetic moment, and lepton flavour violation processes. Table I added
title: [Stellungnahme zu: M.K.H. Eggert "Die Ur- und Frühgeschichte als akademische Disziplin: Bemerkungen zur gegenwärtigen Diskussion."]
Creators: name: Institut Für Ur- Und Frühgeschichte Und Archäologie Des Mittelalters, Die Fachschaft
Publisher: name: University Library Heidelberg
Year: 2014

description: Autor: Die Fachschaft
am Institut für Ur- und Frühgeschichte
und Archäologie des Mittelalters
der EberhardKarlsUniversität
Tübingen
Schloß
D 72070 Tübingen
Greedy Pruning for Continually Adapting Networks
Creators: Shah, Haseeb
Publisher: name: University of Alberta Library
Year: 2023

Gradient Descent algorithms suffer many problems when learning representations using fixed neural network architectures, such as reduced plasticity on non-stationary continual tasks and difficulty training sparse architectures from scratch. A common workaround is continuously adapting the neural network by generating and pruning the features, a process often called Generate and Test. This thesis focuses on neural network pruning in the online, continual setting. We look at existing pruning metrics and propose a novel pruner that attempts to estimate the ideal greedy pruner. Additionally, we observe that greedy pruning can be ineffective when features are highly correlated and does not remove these redundant features. To mitigate this issue, we also propose online feature decorrelation. Through empirical experiments in the online supervised learning setting, we show that a greedy pruner combined with the proposed feature decorrelator allows us to continually replace useless parts of the network with new features while producing a statistically significant performance improvement.
Evaluation of the Structural Performance of Shear Walls Built by  Multi-layer Composite Laminated Panels
Creators: Zheng, Lin
Publisher: name: University of Alberta Library
Year: 2023

Recently, the implementation of cross-laminated timber (CLT) in building systems has rapidly developed in many countries including Canada. Despite this, further improvement in the product performance of CLT is desirable. Composite Laminated Panels (CLP) have been developed due to the need to overcome one of the key weaknesses of traditional CLT, namely the rolling shear failure. CLP is made by combining traditional lumber with structural composite lumber (SCL). This thesis focuses on the structural performance of CLP shear walls and their connections. The aim of this project was to evaluate the mechanical properties of CLP connections as well as the lateral load performance of CLP shear walls, and the feasibility of using current mechanics-based models to predict the strength of connections and shear walls fabricated with CLP.

To study the structural performance of CLP connections together with CLP shear walls, this thesis presents experimental and analytical investigations. Monotonic and cyclic tests were carried out at both the fastener level and the wall level. Afterward, the predictions using current analytical models were compared with experimental results.

Full-scale coupled CLP shear wall panels were tested with different connection configurations to achieve target kinematic wall behaviours under lateral load. The structural performance of the tested shear wall tests was characterised by lateral strength, stiffness, ductility ratio, and energy dissipation, which are all significant parameters required for seismic design. Furthermore, the experimental results also served to validate existing analytical models to predict the strength and deflection of CLT shear walls in the elastic region. It was found that the analytical model for predicting lateral strength of CLP shear walls generally gives good predictions, while the deflections of CLP shear walls were largely underestimated by the analytical deflection model.

Specimens for connection tests were obtained by cutting the CLP panels from the undamaged parts of the panels after the shear wall tests. This study showed that the structural performance of CLP connections is significantly influenced by the properties of timber material. Replacing lumber with Laminated Strand Lumber (LSL) in the core layer exhibited a remarkable increase in stiffness and strength, and tended to fail in a ductile manner. The utilisation of LSL in face layers enhanced stiffness and strength, but reduced ductility.

Overall, this investigation demonstrated that CLP connections and shear walls can provide similar or better performance compared with those fabricated with traditional CLT panels.
Thin He-4 films on alkali substrates: where do He-3 atoms bind?
Creators: name: Boninsegni, Massimo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The possible occurrence of bound states of He-3 atoms in the vicinity of a weakly attractive substrate coated with a thin superfluid He-4film is investigated by first principle computer simulations. No evidence is seen of such bound states, even in the case of the weakest substrate, i.e., Cs; a single He-3 atom always binds to the free He-4 surface, regardless of the thickness of the He-4 film. A comparison of He-4 density profiles computed in this work with those yielded by the Density Functional approach that led to the prediction of He-3 bound states near the substrate, shows that the latter may not have afforded a sufficiently accurate structural description of the adsorbed He-4 film.
description: Ten pages, three color figures
Curing black hole singularities with local scale invariance
Creators: name: Prester, Predrag Dominis
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that Weyl-invariant dilaton gravity provides a description of black holes without classical spacetime singularities. Singularities appear due to ill-behaviour of gauge fixing conditions, one example being the gauge in which theory is classically equivalent to standard General Relativity. The main conclusions of our analysis are: (1) singularities signal a phase transition from broken to unbroken phase of Weyl symmetry, (2) instead of a singularity there is a "baby-universe" or a white hole inside a black hole, (3) in the baby universe scenario there is a critical mass after which reducing mass makes black hole larger as viewed by outside observers, (4) if a black hole could be connected with white hole through the "singularity", this would require breakdown of (classical) geometric description, (5) the singularity of Schwarzschild BH solution is non-generic and so it is dangerous to rely on it in deriving general results. Our results may have important consequences for resolving issues related to information-loss puzzle. The theory we use is basically a completion of General Relativity, containing neither additional physical excitations nor higher-derivative terms, but requires physical scalar field such as Higgs field of Standard Model. Though quantum effects are still crucial and may change the proposed classical picture, a position of building quantum theory around essentially regular classical solutions normally provides a much better starting point.
description: 13 pages, 2 figures, v2: Improved explanations, restoration of Weyl symmetry emphasized. References added. v3: Misprints corrected, improved explanations, one new figure. References added. v4: improved explanations. Discussion on regularity of observables added. v5: improved presentation, additional examples added. Main results and conclusions unchanged. Matches published version
title: Archäologie in Großbauprojekten: Ein Plädoyer für Zusammenarbeit
Creators: name: Heun, Susanne
Publisher: name: University Library Heidelberg
Year: 2014

description: Der vorliegende Aufsatz widmet sich insbesondere den Chancen, die Großbauprojekte für die Denkmalpflege und das gesamte archäologische Netzwerk in Deutschland bieten. Die Autorin faßt alle beteiligten Institutionen, Unternehmen und Einzelpersonen als Netzwerkpartner auf, die eine durchdachte und abgestimmte Methodik gemeinsam entwickeln sollten, um diese anschließend gemeinsam zu erfüllen. Gerade in Zeiten knapper werdender Ressourcen und einer erst allmählich Raum greifenden europäisierten Gesetzgebung ist diese gezielte Verteilung von Aufgaben und Funktionen in Form kooperativer Integration besonders wichtig und förderlich für die gesetzlich verankerten Ziele des Denkmalschutzes.
Wirtschaftliches Vorgehen ist hierbei in Großbauprojekten durchaus von beiden Seiten, Investor und Denkmalpflege, gefordert wie auch sinnvoll und unterstreicht eine kooperative Haltung der Beteiligten im Abwägungsprozeß während der Genehmigungsphase. Das VerhindererImage, welches der Bodendenkmalpflege bei Investoren aber auch innerhalb der Behördenlandschaft anhaftet, könnte durch eine klarere Positionierung und Konturierung der Ziele und Arbeitsweisen in den jeweiligen Projekten aufgelöst werden. Die Interessen und die Rolle der Archäologie als Träger Öffentlicher Belange könnten sogar gestärkt und zum Positiven entwickelt werden, sofern die sich bietenden Chancen erkannt und genutzt werden.
Die Autorin, die Mitglied des Arbeitskreises 2 "Archäologie als Wirtschaftsfaktor Wissenschaft als Dienstleistung" der DGUF ist, stellt die unterschiedlichen Sichtweisen auf die Rolle der Archäologie in Großbauprojekten gegenüber und legt dar, war um ein zum Teil bundesländerübergreifendes Konzept in der Denkmalpflege so bedeutsam und erfolgversprechend wäre.
Sie stellt außerdem in Aussicht, daß die Studie des Arbeitskreises 2 der DGUF zu "Archäologie in Großbauprojekten" wichtige hier aufgegriffene Aspekte inhaltlich a m Beispiel der ICE Trasse Köln Rhein/ Main behandeln und im kommenden Jahr publizieren wird.
Re-Storying Justice Within Tightwire and the Native Sisterhood
Creators: Scheuneman Scott, Isabel MS
Publisher: name: University of Alberta Library
Year: 2023

Even though Indigenous women are the fastest growing prison population in Canada and around the world, scholarship regarding the storytelling of incarcerated Indigenous women is extremely limited. My dissertation centers the stories of Indigenous women within Tightwire, a prisoner produced newsletter that was published between 1972 and 1995 within the former Prison for Women (P4W) in Kingston, Ontario. I aim to document Indigenous women’s storied truths and lived experiences within Canada’s prison system which include, for example, the criminalization process as it relates to Indigenous women, the solidarity expressed by the Native Sisterhood that resulted from their experiences of inequality at P4W, as well as their dreams for Indigenous and social justice. Importantly, I balance my analyses between instances of colonial trauma (including experiences of incarceration) with stories of hope and imagination (such as ideas for achieving Indigenous justice). This practice enables me to avoid damage-centered research while still considering the very real effects of intergenerational trauma and ongoing colonialism. As an interdisciplinary criminologist, I integrate critical feminist criminology, Indigenous studies, women’s and gender studies, cultural studies, and the sociology of punishment to explore Indigenous women’s experiences of criminalization and victimization as well as their resistance and resilience. By bringing incarcerated Indigenous women’s knowledges and perspectives to the fore, my work endeavours to combat the negative effects of stereotypical representations of Indigenous and criminalized peoples – especially incarcerated Indigenous women. To this extent, my dissertation aims to create positive change that helps improve Indigenous lives. It also supports ongoing calls of Indigenous communities for settler accountability, reconciliation, and decolonization.