cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Competition between finite-size effects and dipole-dipole interactions in few-atom systems
Creators: name: Damanet, F.
name: Martin, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we study the competition between finite-size effects (i.e. discernibility of particles) and dipole-dipole interactions in few-atom systems coupled to the electromagnetic field in vacuum. We consider two hallmarks of cooperative effects, superradiance and subradiance, and compute for each the rate of energy radiated by the atoms and the coherence of the atomic state during the time evolution. We adopt a statistical approach in order to extract the typical behavior of the atomic dynamics and average over random atomic distributions in spherical containers with prescribed $k_0R$ with $k_0$ the radiation wavenumber and $R$ the average interatomic distance. Our approach allows us to highlight the tradeoff between finite-size effects and dipole-dipole interactions in superradiance/subradiance. In particular, we show the existence of an optimal value of $k_0R$ for which the superradiant intensity and coherence pulses are the less affected by dephasing effects induced by dipole-dipole interactions and finite-size effects.
description: 11 pages, 11 figures
The Limners ... at the Studio of Myfanwy Pavelic
Creators: name: Pavelic, Myfanwy Spencer
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Spreitz, Karl, 1927-2016
valueUri: http://id.worldcat.org/fast/2013151
subject: Bates, Maxwell, 1906-1980
valueUri: http://id.worldcat.org/fast/221646
subject: Siebner, Herbert, 1925-
valueUri: http://id.worldcat.org/fast/135345
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: de Castro, Robert
subject: Mayhew, Elza
subject: Art--Exhibitions
valueUri: http://id.worldcat.org/fast/815239
subject: Pavelic, Myfanwy Spencer

description: Flyer for the Limners' exhibition at the studio of Myfanwy Pavelic. Includes map of area.
title: Entwicklung einer Logging-Software zur Überwachung und Analyse der Achsdrehmomente von Industrierobotern
Creators: name: Seeland, Jan Philipp
Publisher: name: Technische Hochschule Brandenburg
Year: 2022
Subjects: subject: 004 Datenverarbeitung; Informatik
subject: 005 Computerprogrammierung, Programme, Daten
subject: 681 Präzisionsinstrumente und andere Geräte

description: In dieser Arbeit werden Achsdrehmomente und Motorlast eines Industrieroboters der Firma FANUC analysiert, um diese über eine Logging-Software zu optimieren. Das Ziel ist es, über die Aufzeichnung der Motordaten, mechanische Belastungen an den Motoren der Robotergelenke zu reduzieren. Durch diesen Ansatz können Bewegungen des Roboters optimiert und Traglasten maximiert werden. Die zur Zeit angebotene Robotersteuerung des Herstellers bietet nur wenig zeitlich aufgelöste Diagnoseoptionen. Die vorgestellte Lösung unterscheidet sich von anderen Lösungen darin, dass keine Verkabelung von zusätzlicher Hardware notwendig ist. Auch muss keine zusätzliche, kostenpflichtige Software installiert werden. Der in dieser Arbeit verfolgte Ansatz implementiert eine webbasierte Logging-Software für einen Client-PC und ein KAREL Programm für einen FANUC Roboter, welches als Schnittstelle dient. Die Parameter Drehmoment(Disturbance Torque, Torque Monitor) und Motorstrom (OVC Monitor) konnten periodisch alle 50ms von der Robotersteuerung aufgezeichnet und anschließend zeitlich aufgelöst dargestellt werden. Es wurden Experimente mit verschiedenen Geschwindigkeiten, Achsstellungen und Traglasten durchgeführt. Ein signifikantes Ergebnis konnte bei der Reduzierung der Motorlast unter Verwendung von Beschleunigungsrampen festgestellt werden. Auch wurde der negative Einfluss einer inkorrekt eingestellten Traglast bei der Ansteuerung der Motoren nachvollzogen und aufgezeichnet. In einem Kundenprojekt konnte die Software erfolgreich zur Machbarkeitsanalyse eingesetzt werden.
Transport signatures in topological systems coupled to AC fields
Creators: name: Ruocco, Leonard
name: Gómez-León, Álvaro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the transport properties of a topological system coupled to an AC electric field by means of Floquet-Keldysh formalism. We consider a semi-infinite chain of dimers coupled to a semi-infinite metallic lead, and obtain the density of states and current when the system is out of equilibrium. Our formalism is non-perturbative and allows us to explore, in the thermodynamic limit, a wide range of regimes for the AC field, arbitrary values of the coupling strength to the metallic contact and corrections to the wide-band limit. We find that hybridization with the contact can change the dimerization phase, and that the current dependence on the field amplitude can be used to discriminate between them. We also show the appearance of side-bands and non-equilibrium zero-energy modes, characteristic of Floquet systems. Our results directly apply to the stability of non-equilibrium topological phases, when transport measurements are used for their detection.
description: 7 pages, 8 figures and Appendix
title: Botanical concrete
title: Sperimentazione su substrati di calcestruzzo per l'inverdimento verticale
Creators: name: Büscher, Lucas
name: Polster, Roman
name: Klussmann, Heike
Publisher: name: Universität Kassel
Year: 2022
Subjects: subject: inverdimento verticale
subject: substrato di calcestruzzo
subject: calcestruzzo vivente
subject: infrastruttura verde
subject: bioricettività
subject: vertical greening
subject: concrete substrate
subject: living concrete
subject: green infrastructure
subject: bio-receptivity
subject: 710
subject: Fassadenbegrünung
subject: Hartsubstrat
subject: Infrastruktur
subject: Rezeptivität
subject: Stadtökologie

description: Gefördert durch den Publikationsfonds der Universität Kassel
(200696) John Graimes
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Universal hierarchical structure of quasiperiodic eigenfunctions
Creators: name: Jitomirskaya, Svetlana
name: Liu, Wencai
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We determine exact exponential asymptotics of eigenfunctions and of corresponding transfer matrices of the almost Mathieu operators for all frequencies in the localization regime. This uncovers a universal structure in their behavior, governed by the continued fraction expansion of the frequency, explaining some predictions in physics literature. In addition it proves the arithmetic version of the frequency transition conjecture. Finally, it leads to an explicit description of several non-regularity phenomena in the corresponding non-uniformly hyperbolic cocycles, which is also of interest as both the first natural example of some of those phenomena and, more generally, the first non-artificial model where non-regularity can be explicitly studied.
Symplectic embeddings of four-dimensional polydisks into balls
Creators: name: Christianson, Katherine
name: Nelson, Jo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: In this paper we obtain new obstructions to symplectic embeddings of the four-dimensional polydisk $P(a,1)$ into the ball $B(c)$ for $2\leq a
description: 31 pages, revised as suggested by referee and M. Hutchings
IoT Based Smart Transport Management and Vehicle-to-Vehicle Communication System
Creators: name: Agarwal, Vartika
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 460609
subject: Networking and communications

description: Vehicle to Vehicle (V2V) communication is an advance application and thrust area of research. In the current research the authors highlighted the technologies which are used in V2Vcommunication systems. Advantage of such technology is that it helps to detect live location and tolling. It plays an important role if there are huge amount of traffic. In the current research we can get more information about Lifi, RFID, VANET and LORAWAN Technology. Lifi is known as VLC communication system which uses visible light for high data transmission and reception. RFID technology helps an emergency vehicle to reach destination quickly by avoiding any kind of traffic. LORAWAN is a large-scale network technology with a long range and VANET with low power that lets you obtain accurate traffic information on each route. It saves time. The comparison between the different technologies are reviewed in order to get the optimized technology as per the applications
(200690) Edward Henry Edgar Funnell
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Charged-Particle Multiplicity pp-bar Collisions at sqrt(s) = 1.8 TeV
Creators: name: Affolder, T.
name: Akimoto, H.
name: Akopian, A.
name: Albrow, M. G.
name: Amaral, P.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Cooperative spontaneous emission from indistinguishable atoms in arbitrary motional quantum states
Creators: name: Damanet, F.
name: Braun, D.
name: Martin, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate superradiance and subradiance of indistinguishable atoms with quantized motional states, starting with an initial total state that factorizes over the internal and external degrees of freedom of the atoms. Due to the permutational symmetry of the motional state, the cooperative spontaneous emission, governed by a recently derived master equation [F. Damanet et al., Phys. Rev. A 93, 022124 (2016)], depends only on two decay rates $γ$ and $γ_0$ and a single parameter $Δ_{\mathrm{dd}}$ describing the dipole-dipole shifts. We solve the dynamics exactly for $N=2$ atoms, numerically for up to 30 atoms, and obtain the large-$N$-limit by amean-field approach. We find that there is a critical difference $γ_0-γ$ that depends on $N$ beyond which superradiance is lost. We show that exact non-trivial dark states (i.e. states other than the ground state with vanishing spontaneous emission) only exist for $γ=γ_0$, and that those states (dark when $γ=γ_0$) are subradiant when $γ
description: 14 pages, 8 figures
title: Whom to Inform about Prices? Evidence from the German Fuel Market
Creators: name: Montag, Felix
name: Sagimuldina, Alina
name: Winter, Christoph
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2023

description: Combining a theoretical model of imperfect information with empirical evidence, we show how the effect of providing price information to consumers depends on how well informed they are beforehand. Theoretically, an increase in consumer information decreases prices more, the fewer ex ante informed consumers there are. Empirically, we study mandatory price disclosure in the German fuel market for two fuel types that differ in ex ante consumer information. The decline in prices is stronger when there are fewer ex ante informed consumers. The magnitude of the treatment effect declines over time but is intensified by local follow-on information campaigns.
AdS$_2$ Holographic Dictionary
Creators: name: Cvetič, Mirjam
name: Papadimitriou, Ioannis
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the holographic dictionary for both running and constant dilaton solutions of the 2D Einstein-Maxwell-Dilaton theory obtained by a circle reduction from 3D gravity with negative cosmological constant. This specific model ensures that the dual theory has a well defined ultraviolet completion in terms of a 2D CFT, but our results apply qualitatively to a wider class of 2D dilaton gravity theories. For each type of solutions we perform holographic renormalization, compute the exact renormalized one-point functions in the presence of arbitrary sources, and derive the asymptotic symmetries and conserved charges. In both cases we find that the scalar operator dual to the dilaton plays a crucial role in the description of the dynamics. Its source gives rise to a matter conformal anomaly for the running dilaton solutions, while its expectation value is the only non trivial observable for constant dilaton solutions. The role of this operator has been largely overlooked in the literature. We further show that the only non trivial conserved charges for running dilaton solutions are the mass and the electric charge, while for constant dilaton solutions only the electric charge is non zero. However, by uplifting the solutions to three dimensions we show that constant dilaton solutions can support non trivial extended symmetry algebras, including the one found by Compère, Song and Strominger, in agreement with results by Castro and Song. Finally, we demonstrate that any solution of this specific dilaton gravity model can be uplifted to a family of asymptotically AdS$_2\times S^2$ or conformally AdS$_2\times S^2$ solutions of the STU model in four dimensions. The four dimensional solutions obtained by uplifting the running dilaton solutions coincide with the so called `subtracted geometries', while those obtained from the uplift of the constant dilaton ones are new.
description: 42 pages, 2 figures; v2 minor typos corrected and references added. Version published in JHEP; v3 corrected the argument leading to the Schwarzian derivative action in eq. (3.21) and added one reference. All results remain unaffected
(200688) Dianah Ellen Funnell
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Electron Cotunneling in a Semiconductor Quantum Dot
Creators: name: De Franceschi, S.
name: Elzerman, J. M.
name: Kouwenhoven, L. P.
name: Sasaki, S.
name: Tarucha, S.
name: Van Der Wiel, W. G.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Tropical Ideals
Creators: name: Maclagan, Diane
name: Rincón, Felipe
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 14TO5, O5B35

description: We introduce and study a special class of ideals, called tropical ideals, in the semiring of tropical polynomials, with the goal of developing a useful and solid algebraic foundation for tropical geometry. The class of tropical ideals strictly includes the tropicalizations of classical ideals, and allows us to define subschemes of tropical toric varieties, generalizing [Giansiracusa-Giansiracusa]. We investigate some of the basic structure of tropical ideals, and show that they satisfy many desirable properties that mimic the classical setup. In particular, every tropical ideal has an associated variety, which we prove is always a finite polyhedral complex. In addition we show that tropical ideals satisfy the ascending chain condition, even though they are typically not finitely generated, and also the weak Nullstellensatz.
description: To appear in Compositio Mathematica
Enhancing Middle Years English Curriculum: Advancing Reasoning Through A Multimodal Task
Creators: name: Di Palma, Stephanie
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Education, College of Arts, Social Sciences and Commerce (ASSC), La Trobe University, Bundoora.
Kommilitoninnen und Kommilitonen! Am Spätnachmittag des 1. Juli; 1965
Creators: name: Piening, Jürgen
Publisher: name: Universitätsbibliothek der Technischen Universität Berlin
Year: 2018

description: Enthält: Aufruf des Vorstandes der Studentenvertretung der Technischen Universität Berlin zu einer Demonstration im Rahmen der bundesweiten Aktion 1. Juli zum Bildungsnotstand vom 30. Juni 1965. 1 Seite. S/w.
(200691) Naldrett Ottiwell Funnell
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Основные принципы использования геоинформационных систем в экологии и природопользовании
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2023
Subjects: geographic information systems
geographic information models
ecology
nature management
electronic maps
environment
forecasting
геоинформационные системы
геоинформационные модели
экология
природопользование
электронные карты
окружающая среда
прогнозирование

description: Международный научно-исследовательский журнал, Выпуск 7 (133) 2023
Some optimal visiting problems: from a single player to a mean-field type model
Creators: name: Marzufero, Luciano
Publisher: name: Università degli studi di Trento
Year: 2022
Subjects: subject: Optimal control; optimal stopping; optimal switching; mean-field games; continuity equations; transport equations; networks
subject: Optimal control
subject: optimal stopping
subject: optimal switching
subject: mean-field games
subject: continuity equations
subject: transport equations
subject: networks

description: In an optimal visiting problem, we want to control a trajectory that has to pass as close as possible to a collection of target points or regions. We introduce a hybrid control-based approach for the classic problem where the trajectory can switch between a group of discrete states related to the targets of the problem. The model is subsequently adapted to a mean-field game framework, that is when a huge population of agents plays the optimal visiting problem with a controlled dynamics and with costs also depending on the distribution of the population. In particular, we investigate a single continuity equation with possible sinks and sources and the field possibly depending on the mass of the agents. The same problem is also studied on a network framework. More precisely, we study a mean-field game model by proving the existence of a suitable definition of an approximated mean-field equilibrium and then we address the passage to the limit.
ИНТЕРПРЕТАЦИЯ ИМЕН СОБСТВЕННЫХ ПОЛОЖИТЕЛЬНЫХ И ОТРИЦАТЕЛЬНЫХ ПЕРСОНАЖЕЙ В ЦИКЛЕ РОМАНОВ ДЖ. К. РОУЛИНГ О ГАРРИ ПОТТЕРЕ
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2023
Subjects: analysis
anthroponyms
fantasy genre
J.K. Rowling
анализ
антропонимы
жанр фэнтези
Дж. К. Роулинг

description: Международный научно-исследовательский журнал, Выпуск 7 (133) 2023
Validation of Different Approaches to Coupled Electrodynamic-Structural Mechanical Simulation of Electromagnetic Forming
Creators: name: Blum, H.
name: Joswig, A.
name: Klocke, M.
name: Kulig, S.
name: Stiemer, M.
name: Suttmeier, F. T.
Publisher: name: Institut für Umformtechnik - Technische Universität Dortmund
Year: 2004
Subjects: subject: electromagnetic forming
subject: modeling
subject: simulation
subject: 620
subject: 670

description: Electromagnetic forming (EF) is a high speed forming process in which strain rates of over 103 s^(-1) are achieved. The workpiece is deformed by the Lorentz force resulting from the interaction of a fast varying electro magnetic field with the eddy currents induced by the field in the workpiece. Within a research group (FOR 443) funded by the German Research Foundation (DFG) an object oriented simulation tool for this multi physical process has been developed (SOFAR), that can handle the fully coupled simulation in a single software environment. In this contribution, details of the algorithmic implementation of the electromagnetic side of the coupled model are discussed and validated. Basis of this validation are benchmark simulations developed for this purpose. In particular, the implementation of transient field computation for coupled problems within SOFAR is compared with an experienced FD-code (FELMEC) developed at the Institute of Electrical Machines, Drives and Power Electronics.
Mean field analysis of large-scale interacting populations of stochastic conductance-based spiking neurons using the Klimontovich method
Creators: name: Gandolfo, Daniel
name: Rodriguez, Roger
name: Tuckwell, Henry C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: We investigate the dynamics of large-scale interacting neural populations, composed of conductance based, spiking model neurons with modifiable synaptic connection strengths, which are possibly also subjected to external noisy currents. The network dynamics is controlled by a set of neural population probability distributions ($\mathrm{PPD}$)which are constructed along the same lines as in the Klimontovich approach to the kinetic theory of plasmas. An exact non-closed, nonlinear, system of integro-partial differential equations is derived for the $\mathrm{PPD}$s. As is customary, a closing procedure leads to a mean field limit. The equations we have obtained are of the same type as those which have been recently derived using rigorous techniques of probability theory. The numerical solutions of these so called McKean-Vlasov-Fokker-Planck equations, which are only valid in the limit of infinite size networks, actually shows that the statistical measures as obtained from $\mathrm{PPD}$s are in good agreement with those obtained through direct integration of the stochastic dynamical system for large but finite size networks. Although numerical solutions have been obtained in the case of Fitzhugh-Nagumo model neurons, the theory can be readily applied to systems of Hodgkin-Huxley type model neurons of arbitrary dimension.
description: 20 pages
(200693) Marchant Taylor Graimes
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Transport of protostellar cosmic rays in turbulent dense cores
Creators: name: Fitz Axen, Margot
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Cosmic rays
Star formation
Astrochemistry
Magnetic fields
Ionization
Protostars
High energy astrophysics

description: Recent studies have suggested that low-energy cosmic rays (CRs) may be accelerated inside molecular clouds by the shocks associated with star formation. We use a Monte Carlo transport code to model the propagation of CRs accelerated by protostellar accretion shocks through protostellar cores. We calculate the CR attenuation and energy losses and compute the resulting flux and ionization rate as a function of both radial distance from the protostar and angular position. We show that protostellar cores have non-uniform CR fluxes that produce a broad range of CR ionization rates, with the maximum value being up to two orders of magnitude higher then the radial average at a given distance. In particular, the CR flux is focused in the direction of the outflow cavity, creating a ’flashlight’ effect and allowing CRs to leak out of the core. The radially averaged ionization rates are less than the measured value for the Milky Way of [zeta] ≈ 10⁻¹⁶ s⁻¹; however, within r ≈ 0.03 pc from the protostar, the maximum ionization rates exceed this value. We show that variation in the protostellar parameters, particularly in the accretion rate, may produce ionization rates that are a couple of orders of magnitude higher or lower than our fiducial values. Finally, we use a statistical method to model unresolved sub-grid magnetic turbulence in the core. We show that turbulence modifies the CR spectrum and increases the uniformity of the CR distribution but does not significantly affect the resulting ionization rates.
Process Investigation of Tube Expansion by Gas Detonation
Creators: name: Bach, F.-W.
name: Beerwald, C.
name: Brosius, A.
name: Gershteyn, G.
name: Hermes, M.
name: Kleiner, M.
name: Olivier, H.
name: Weber, M.
Publisher: name: Institut für Umformtechnik - Technische Universität Dortmund
Year: 2006
Subjects: subject: forming
subject: shock wave
subject: tube
subject: 620
subject: 670

description: The present paper deals with the expansion of tubes by direct application of gas detonation waves, i.e. the gas is both pressure medium and energy source. After an introduction to gas detonation forming, measurements of the motion process and the internal pressures are presented. Results of free expansion and of forming into a die are thoroughly studied and compared to the results of quasi-static burst tests and hydroforming. Using pure aluminum Al99.5 and a medium strength alloy AlMgSi1, expansions by 25 % and 20 % respectively are obtained. A simulation delivers details on the deformation process and specially prepared probes of high-speed tension tests give new insight into metallographic material behavior at different strain rates.
Generalized Log-Majorization and Multivariate Trace Inequalities
Creators: name: Hiai, Fumio
name: Koenig, Robert
name: Tomamichel, Marco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that recent multivariate generalizations of the Araki-Lieb-Thirring inequality and the Golden-Thompson inequality [Sutter, Berta, and Tomamichel, Comm. Math. Phys. (2016)] for Schatten norms hold more generally for all unitarily invariant norms and certain variations thereof. The main technical contribution is a generalization of the concept of log-majorization which allows us to treat majorization with regards to logarithmic integral averages of vectors of singular values.
description: 17 pages
Attempted synthesis of ligand stabilized dicarbon with neutral ligands, with unexpected reactivity and novel compounds
Creators: name: Georgiou, Dayne Christopher
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Chemistry and Physics, School of Molecular Sciences, College of Science, Health and Engineering, La Trobe University, Bundoora.
(200686) William Henry Funnell
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Protein crystals and radiation damage studied using Bragg coherent diffractive imaging
Creators: name: Coughlan, Hannah Debbie
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Chemistry and Physics, La Trobe Institute for Molecular Science, College of Science, Health and Engineering, La Trobe University, Bundoora.
Null weak values and the past of a quantum particle
Creators: name: Duprey, Q.
name: Matzkin, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-destructive weak measurements (WM) made on a quantum particle allow to extract information as the particle evolves from a prepared state to a finally detected state. The physical meaning of this information has been open to debate, particularly in view of the apparent discontinuous trajectories of the particle recorded by WM. In this work we investigate the properties of vanishing weak values for projection operators as well as general observables. We then analyze the implications when inferring the past of a quantum particle. We provide a novel (non-optical) example for which apparent discontinuous trajectories are obtained by WM. Our approach is compared to previous results.
description: Minor changes; to be published in Phys Rev A
Bayesian Pathway Analysis in Epigenetics
Creators: name: Wright, Alan
Publisher: name: University of Plymouth
Year: 2013
Subjects: Bayesian Statistics
Gene Set Analysis
Pathway Analysis
Epigenetics
Gene Expression

description: A typical gene expression data set consists of measurements of a large number of gene expressions, on a relatively small number of subjects, classified according to two or more outcomes, for example cancer or non-cancer. The identification of associations between gene expressions and outcome is a huge multiple testing problem. Early approaches to this problem involved the application of thousands of univariate tests with corrections for multiplicity. Over the past decade, numerous studies have demonstrated that analyzing gene expression data structured into predefined gene sets can produce benefits in terms of statistical power and robustness when compared to alternative approaches. This thesis presents the results of research on gene set analysis. In particular, it examines the properties of some existing methods for the analysis of gene sets. It introduces novel Bayesian methods for gene set analysis. A distinguishing feature of these methods is that the model is specified conditionally on the expression data, whereas other methods of gene set analysis and IGA generally make inferences conditionally on the outcome. Computer simulation is used to compare three common established methods for gene set analysis. In this simulation study a new procedure for the simulation of gene expression data is introduced. The simulation studies are used to identify situations in which the established methods perform poorly. The Bayesian approaches developed in this thesis apply reversible jump Markov chain Monte Carlo (RJMCMC) techniques to model gene expression effects on phenotype. The reversible jump step in the modelling procedure allows for posterior probabilities for activeness of gene set to be produced. These mixture models reverse the generally accepted conditionality and model outcome given gene expression, which is a more intuitive assumption when modelling the pathway to phenotype. It is demonstrated that the two models proposed may be superior to the established methods studied. There is considerable scope for further development of this line of research, which is appealing in terms of the use of mixture model priors that reflect the belief that a relatively small number of genes, restricted to a small number of gene sets, are associated with the outcome.
title: Nonparametric comparison of quantile curves
title: a stochastic process approach
titleType: AlternativeTitle
Creators: name: Dette, Holger
name: Volgushev, Stanislav
name: Wagener, Jens
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: crossing quantile curves
subject: monotone rearrangements
subject: nonparametric analysis of covariance
subject: quantile regression
subject: 310
subject: 330
subject: 620

description: A new test for comparing conditional quantile curves is proposed which is able to detect Pitman alternatives converging to the null hypothesis at the optimal rate. The basic idea of the test is to measure differences between the curves by a process of integrated non parametric estimates of the quantile curve. We prove weak convergence of this process to a Gaussian process and study the finite sample properties of a Kolmogorov-Smirnov test by means of a simulation study.
description: Discussion Paper / SFB 823;12/2011
(200684) Sarah Collins
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Computational simulation studies of genomic selection for perennial ryegrass (Lolium spp.) breeding programs
Creators: name: Lin, Zibei
Publisher: name: La Trobe
Year: 2023

description: Thesis with publications.

Submission note: Ph.D. Thesis submitted in total fulfilment of the requirements of the degree of Doctor of Philosophy to the School of Applied Systems Biology, College of Science, Health and Engineering, La Trobe University, Victoria.
Energy dependence of dissociative $\mathrm{J/}ψ$ photoproduction as a signature of gluon saturation at the LHC
Creators: name: Cepila, J.
name: Contreras, J. G.
name: Takaki, J. D. Tapia
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have developed a model in which the quantum fluctuations of the proton structure are characterised by hot spots, whose number grows with decreasing Bjorken-$x$. Our model reproduces the $F_2(x,Q^2)$ data from HERA at the relevant scale, as well as the exclusive and dissociative $\mathrm{J/}ψ$ photoproduction data from H1 and ALICE. Our model predicts that for $W_{γ\mathrm{p}} \approx 500$ GeV, the dissociative $\mathrm{J/}ψ$ cross section reaches a maximum and then decreases steeply with energy, which is in qualitatively good agreement to a recent observation that the dissociative $\mathrm{J/}ψ$ background in the exclusive $\mathrm{J/}ψ$ sample measured in photoproduction by ALICE decreases as energy increases. Our prediction provides a clear signature for gluon saturation at LHC energies.
description: 10 pages plus references, 3 figures. This version matches accepted version
Метафора «цвет времени»: структура и функционирование в поэтическом тексте (на примере анализа стихотворения В.Я. Брюсова «Фонарики»)
Creators: name: Лебединская, Виктория
Publisher: name: ООО Цифра
Year: 2023
Subjects: colour vocabulary
philological analysis of text
metaphor
цветовая лексика
филологический анализ текста
метафора

description: Международный научно-исследовательский журнал, Выпуск 7 (133) 2023
$SO(10)$ thick branes and perturbative stability
Creators: name: Chavez, Rafael
name: Guerrero, Rommel
name: Rodriguez, R. Omar
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Three self-gravitating $SO(10)$ domain walls in five dimensions are obtained and their properties are analyzed. These non-abelian domain walls interpolate between AdS${}_5$ spacetimes with different embedding of $SU(5)$ in $SO(10)$ and they can be distinguished, among other features, by the unbroken group on each wall, being either $SO(10)$, $SO(6)\otimes SU(2)\otimes U(1)/Z_2$ or $SU(4)\otimes SO(2)\otimes U(1)/Z_4$. We show that, unlike Minkowskian versions, the curved scenarios are perturbatively stable due to the gravitational capture of scalar fluctuations associated to the residual orthogonal subgroup in the core of the walls. These stabilizer modes are additional to the four-dimensional Nambu-Goldstone states found in two of the three gravitational sceanarios.
description: 9 pages, 4 figures
Forced Edges and Graph Structure
Creators: name: Cloteaux, Brian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: For a degree sequence, we define the set of edges that appear in every labeled realization of that sequence as forced, while the edges that appear in none as forbidden. We examine structure of graphs whose degree sequences contain either forced or forbidden edges. Among the things we show, we determine the structure of the forced or forbidden edge sets, the relationship between the sizes of forced and forbidden sets for a sequence, and the resulting structural consequences to their realizations. This includes showing that the diameter of every realization of a degree sequence containing forced or forbidden edges is no greater than 3, and that these graphs are maximally edge-connected.
Symmetry and elements of Galois Theory at school
Creators: name: Safuanov, Ildar
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2012
Subjects: subject: 510

description: It is useful to acquaint school pupils, especially gifted ones, with interesting and important topics of modern mathematics. As example of such topic one can choose symmetry and elements of Galois theory. However, Galois theory is extremely difficult even for university students and school mathematics teachers. Therefore, it is necessary to thoroughly select, adapt and elaborate concepts and results to be taught to school pupils. We propose our system of teaching this topic at school.
title: Lehrerprofessionalisierung online
title: Effekte aus der Sicht der Teilnehmer/-innen
titleType: AlternativeTitle
Creators: name: Szymanski, Roman
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2012
Subjects: subject: 510

description: Die Arbeitsgruppe "Fachdidaktik der Mathematik" der Technischen Universität Darmstadt bietet seit September 2005 halbjährige Online-Fortbildungskurse zur Weiterentwicklung des Mathematikunterrichts in den Sekundarstufen an, die fortlaufend evaluiert werden. Es werden Ergebnisse der Evaluation vorgestellt, wobei Faktoren der Akzeptanz der Kurse und der nachhaltigen Umsetzung der Kursinhalte fokussiert werden.
Infrared phonons as a probe of a spin-liquid states in herbertsmithite ZnCu3(OH)6Cl2
Creators: name: Sushkov, Andrei B.
name: Jenkins, Gregory S.
name: Han, Tian-Heng
name: Lee, Young S.
name: Drew, H. Dennis
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on temperature dependence of the infrared reflectivity spectra of a single crystalline herbertsmithite in two polarizations --- parallel and perpendicular to the kagome plane of Cu atoms. We observe anomalous broadening of the low frequency phonons possibly caused by fluctuations in the exotic dynamical magnetic order of the spin liquid.
(200687) Ellen Farhall
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Effects of invasive willows (Salix spp.) on stream ecosystem dynamics
Creators: name: McInerney, Paul J.
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Ecology, Environment and Evolution, Murray Darling Freshwater Research Centre, School of Life Sciences, College of Science, Health and Engineering, La Trobe University, Wodonga.
Reactive Multi-Context Systems: Heterogeneous Reasoning in Dynamic Environments
Creators: name: Brewka, Gerhard
name: Ellmauthaler, Stefan
name: Gonçalves, Ricardo
name: Knorr, Matthias
name: Leite, João
name: Pührer, Jörg
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Managed multi-context systems (mMCSs) allow for the integration of heterogeneous knowledge sources in a modular and very general way. They were, however, mainly designed for static scenarios and are therefore not well-suited for dynamic environments in which continuous reasoning over such heterogeneous knowledge with constantly arriving streams of data is necessary. In this paper, we introduce reactive multi-context systems (rMCSs), a framework for reactive reasoning in the presence of heterogeneous knowledge sources and data streams. We show that rMCSs are indeed well-suited for this purpose by illustrating how several typical problems arising in the context of stream reasoning can be handled using them, by showing how inconsistencies possibly occurring in the integration of multiple knowledge sources can be handled, and by arguing that the potential non-determinism of rMCSs can be avoided if needed using an alternative, more skeptical well-founded semantics instead with beneficial computational properties. We also investigate the computational complexity of various reasoning problems related to rMCSs. Finally, we discuss related work, and show that rMCSs do not only generalize mMCSs to dynamic settings, but also capture/extend relevant approaches w.r.t. dynamics in knowledge representation and stream reasoning.
Increasing the Accessibility of Archaeological Education: Exploring the Possibilities of Inquiry-Based Pedagogy Through Collections Research
Creators: name: Kemmerlin, Aspen
Publisher: name: Georgia State University
Year: 2022

description: Recent trends in archaeological pedagogy include the adoption of active learning models as well as courses that incorporate community and public archaeology frameworks. These shifts have primarily been centered around archaeological field schools and on-campus excavations. In contrast, despite the growing concern over legacy and orphaned collections that contribute to the curation crisis, less attention has been given to the potential for inquiry-based learning in lab or collections-based courses, particularly at the undergraduate level. Utilizing ethnographic methods, this study examines undergraduate experiences in introductory archaeology courses at Georgia State University (GSU). Comparing student experiences in a traditional lecture course with those of students enrolled in a hands-on project lab with a legacy collection of archaeological material curated at the University, this study explores the potential for lab-based courses as sites of active learning and as models for more inclusive and accessible archaeological education at higher education institutions.
Necessary Adiabatic Run Times in Quantum Optimization
Creators: name: Brady, Lucas T.
name: van Dam, Wim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum annealing is guaranteed to find the ground state of optimization problems in the adiabatic limit. Recent work [Phys. Rev. X 6, 031010 (2016)] has found that for some barrier tunneling problems, quantum annealing can be run much faster than is adiabatically required. Specifically, an $n$-qubit optimization problem was presented for which a non-adiabatic, or diabatic, annealing algorithm requires only constant runtime, while an adiabatic annealing algorithm requires a runtime polynomial in $n$. Here we show that this non-adiabatic speed-up is a direct result of a specific symmetry in the studied problems. In the more general case, no such non-adiabatic speed-up occurs. We furthermore show why the special case achieves this speed-up compared to the general case. We conclude with the observation that the adiabatic annealing algorithm has a necessary and sufficient runtime that is quadratically better than the standard quantum adiabatic condition suggests.
description: 5 pages, 5 figures