cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Chain inflation and the imprint of fundamental physics in the CMBR
Creators: name: Chialva, Diego
name: Danielsson, Ulf H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work we investigate characteristic modifications of the spectrum of cosmological perturbations and the spectral index due to chain inflation. We find two types of effects. First, modifications of the spectral index depending on interactions between radiation and the vacuum, and on features of the effective vacuum potential of the underlying fundamental theory. Second, a modulation of the spectrum signalling new physics due to bubble nucleation. This effect is similar to those of transplanckian physics. Measurements of such signatures could provide a wealth of information on the fundamental physics at the basis of inflation.
description: 16 pages
title: Front Matter, Table of Contents, Preface
Creators: name: Grossi, Roberto
name: Lewenstein, Moshe
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2016
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: List of Authors

description: Front Matter, Table of Contents, Preface, List of Authors
description: LIPIcs, Vol. 54, 27th Annual Symposium on Combinatorial Pattern Matching (CPM 2016), pages 0:i-0:x
SponGES Policy Brief: Threats and impacts on sponge grounds
Creators: name: FAO
Publisher: name: Zenodo
Year: 2021
Subjects: Sponges
Sustainable development
Fishing operations
Impact assessment
European Union (EU)
Horizon 2020
Grant Agreement No 679849
Deep-sea Sponge Grounds Ecosystems of the North Atlantic: an integrated approach towards their preservation and sustainable exploitation
SponGES

description: This SponGES project policy briefs presents an overview of the main threats that deep-sea sponge grounds face, including those due to fishing activity, and the effects of sediment and climate change on sponge species.
Gate Tunable Dissipation and "Superconductor-Insulator" Transition in Carbon Nanotube Josephson Transistors
Creators: name: Liu, Gang
name: Zhang, Yong
name: Lau, Chun Ning
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Dissipation is ubiquitous in quantum systems, and its interplay with fluctuations is critical to maintaining quantum coherence. We experimentally investigate the dissipation dynamics in single-walled carbon nanotubes coupled to superconductors. The voltage-current characteristics display gate-tunable hysteresis, with sizes that perfectly correlate with the normal state resistance RN, indicating the junction undergoes a periodic modulation between underdamped and overdamped regimes. Surprisingly, when a device's Fermi-level is tuned through a local conductance minimum, we observe a gate-controlled transition from superconducting-like to insulating-like states, with a "critical" R_N value of about 8-20 kohm.
description: Figures revised to improve clarity. Accepted for publication by Physical Review Letters
Arbitrary Waveform Multilevel Generator for High Voltage High Frequency Plasma Actuators
Creators: name: Dragonas, Filopimin Andreas <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: ING-IND/31 Elettrotecnica

description: This dissertation presents the theory and the conducted activity that lead to the construction of a high voltage
high frequency arbitrary waveform voltage generator. The
generator has been specifically designed to supply power to a wide range of plasma actuators. The system has been completely designed, manufactured and tested at the Department of Electrical, Electronic and Information Engineering of the University of Bologna. The generator structure is based on the single phase cascaded H-bridge multilevel topology and is comprised of 24 elementary units that are series connected in order to form the typical staircase output voltage waveform of a multilevel converter. The total number of voltage levels that can be produced by the generator is 49. Each level is 600 V making the output peak-to-peak voltage equal to 28.8 kV. The large number
of levels provides high resolution with respect to the output voltage having thus the possibility to generate arbitrary waveforms. Maximum frequency of operation is 20 kHz. A study of the relevant literature shows that this is the first time that a cascaded multilevel converter of such
dimensions has been constructed. Isolation and control
challenges had to be solved for the realization of the system. The biggest problem of the current technology in
power supplies for plasma actuators is load matching. Resonant converters are the most used power supplies and are seriously affected by this problem. The manufactured generator completely solves this issue providing consistent voltage output independently of the connected load. This fact is very important when executing tests and during the comparison of the results because all measures should be comparable and not dependent from matching issues.
The use of the multilevel converter for power supplying a plasma actuator is a real technological breakthrough
that has provided and will continue to provide very significant experimental results.
Learning Joint Embedding with Modality Alignments for Cross-Modal Retrieval of Recipes and Food Images
Creators: name: Xie, Zhongwei
name: Liu, Ling
name: Li, Lin
name: Zhong, Luo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: This paper presents a three-tier modality alignment approach to learning text-image joint embedding, coined as JEMA, for cross-modal retrieval of cooking recipes and food images. The first tier improves recipe text embedding by optimizing the LSTM networks with term extraction and ranking enhanced sequence patterns, and optimizes the image embedding by combining the ResNeXt-101 image encoder with the category embedding using wideResNet-50 with word2vec. The second tier modality alignment optimizes the textual-visual joint embedding loss function using a double batch-hard triplet loss with soft-margin optimization. The third modality alignment incorporates two types of cross-modality alignments as the auxiliary loss regularizations to further reduce the alignment errors in the joint learning of the two modality-specific embedding functions. The category-based cross-modal alignment aims to align the image category with the recipe category as a loss regularization to the joint embedding. The cross-modal discriminator-based alignment aims to add the visual-textual embedding distribution alignment to further regularize the joint embedding loss. Extensive experiments with the one-million recipes benchmark dataset Recipe1M demonstrate that the proposed JEMA approach outperforms the state-of-the-art cross-modal embedding methods for both image-to-recipe and recipe-to-image retrievals.
description: accepted by CIKM 2021. arXiv admin note: substantial text overlap with arXiv:2108.00705
PARAMETRIC STUDY OF THE ULTIMATE CAPACITY OF REINFORCED CONCRETE CHIMNEYS, SUBJECTED TO THERMAL ACTIONS
Creators: name: Pavlov, Ivan
Publisher: name: figshare
Year: 2021
Subjects: subject: 90502 Construction Engineering
subject: FOS: Civil engineering
subject: 90506 Structural Engineering

description: The thermal actions in RC chimneys cause bending moments in the vertical sections, depending not only on the temperature gradient, but also on the material properties and on the actual stiffness of the cross sections. The progressive cracking and plastic deformations give rise to a fundamentally different stressed state in the cross sections of chimneys. Different design codes use various hypotheses about the behavior of the reinforced concrete elements for evaluation of the thermal stresses. In the present report a study on the existing methods for determination of the bending moments in vertical sections due to temperature difference is performed, in accordance of Model Code for Concrete Chimneys (CICIND-2001), Design and Construction of Reinforced Concrete Chimneys (ACI 307-98), the Code of design of reinforced concrete chimneys (NPPSK-89) and a proposed from the author method.
Capacity Building Plan
Creators: name: Silveira, Lina
name: Paramio, Luz
name: Nascimento, Gisela
name: Estima, Deborah
Publisher: name: Zenodo
Year: 2020
Subjects: ORs
Outermost regions
Research
Innovation
Capacity building
Research excellence

description: Project deliverable including a Capacity Building Plan to define the capacity building actions for Outermost Regions' R&I communities, to be implemented within the FORWARD project.
Heavy ion event generator HYDJET++ (HYDrodynamics plus JETs)
Creators: name: Lokhtin, I. P.
name: Malinina, L. V.
name: Petrushanko, S. V.
name: Snigirev, A. M.
name: Arsene, I.
name: Tywoniuk, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: HYDJET++ is a Monte-Carlo event generator for simulation of relativistic heavy ion AA collisions considered as a superposition of the soft, hydro-type state and the hard state resulting from multi-parton fragmentation. This model is the development and continuation of HYDJET event generator (Lokhtin & Snigirev, 2006, EPJC, 45, 211). The main program is written in the object-oriented C++ language under the ROOT environment. The hard part of HYDJET++ is identical to the hard part of Fortran-written HYDJET and it is included in the generator structure as a separate directory. The soft part of HYDJET++ event is the "thermal" hadronic state generated on the chemical and thermal freeze-out hypersurfaces obtained from the parameterization of relativistic hydrodynamics with preset freeze-out conditions. It includes the longitudinal, radial and elliptic flow effects and the decays of hadronic resonances. The corresponding fast Monte-Carlo simulation procedure, C++ code FAST MC (Amelin et al., 2006, PRC, 74, 064901; 2008, PRC, 77, 014903) is adapted to HYDJET++. It is designed for studying the multi-particle production in a wide energy range of heavy ion experimental facilities: from FAIR and NICA to RHIC and LHC.
description: 44 pages including 6 figures as EPS-files; prepared using LaTeX package for publication in Computer Physics Communications
Comparison of Convexificated SQCQP and PSO for the Optimal Transmission System Operation based on Incremental In-Phase and Quadrature Voltage Controlled Transformers
Creators: name: Sarstedt, Marcel
name: Leveringhaus, Thomas
name: Kluß, Leonard
name: Hofmann, Lutz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The optimal operation of electrical energy systems by solving a security constrained optimal power flow (SCOPF) problem is still a challenging research aspect. Especially, for conventional optimization methods like sequential quadratic constrained quadratic programming (SQCQP) the formulation of the incremental control variables like in-phase and quadrature voltage controlled transformers in a solver suitable way is complex. Compared to this, the implementation of these control variables within heuristic approaches like the particle swarm optimization (PSO) is simple but problem specific adaptations of the classic PSO algorithm are necessary to avoid an unfortunate swarm behavior and local convergence in bad results. The objective of this paper is to introduce a SQCQP and a modified PSO approach in detail to solve the SCOPF problem adequately under consideration of flexible incremental in-phase and quadrature transformers tap sets and to compare and benchmark the results of both approaches for an adapted IEEE 118-bus system. The casestudy shows that both approaches lead to suitable results of the SCOPF with individual advantages of the SQCQP concerning the quality and the reproducibility of the results while the PSO lead to faster solutions when the complexity of the investigation scenario increases.
description: 8 pager, 7 figures, conference, under review
Reliance and Cost-Effective Integration of Distributed Energy Resources: Technologies, Pilot Projects and Challenges
Creators: D. Black
S. Kahrobaee
Y. Nanpeng
Y. Wang
Publisher: name: IEEE
Year: 2018

2018 PES T&D Panel Presentation
Integration of Distributed Energy Resources (DER), such as Electric Vehicles (EVs), Battery Energy Storage System (BESS) and renewable generations, etc. into the power grid poses many technological challenges on communication, control, optimization, data analytics and power electronics. Advanced algorithms that improve the cost-effectiveness and reliability of the DER integrations have been proposed, however, there exist clear gaps among the academia utilities and vendors. Handling the intermittence of DERs and uncertainties of consumer behaviors remain a challenging task. This panel will discuss the most recent DER integration technologies and projects in the perspectives of academia, utilities and vendors with an objective to present new findings and lessons learned that bridge the gaps in DER integration projects; specifically: data analytics, solar PV adoption forecast, distributed DER management strategies, service infrastructure, and real-world DER integration projects at Alameda County, UCLA campus and City of Santa Monica.
Phase diagram of asymmetric Fermi gas across Feshbach resonance
Creators: name: Pao, C. -H.
name: Yip, S. -K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the phase diagram of the dilute two-component Fermi gas at zero temperature as a function of the polarization and coupling strength. We map out the detailed phase separations between superfluid and normal states near the Feshbach resonance. We show that there are three different coexistence of superfluid and normal phases corresponding to phase separated states between: (I) the partially polarized superfluid and the fully polarized normal phases, (II) the unpolarized superfluid and the fully polarized normal phases and (III) the unpolarized superfluid and the partially polarized normal phases from strong-coupling BEC side to weak-coupling BCS side. For pairing between two species, we found this phase separation regime gets wider and moves toward the BEC side for the majority species are heavier but shifts to BCS side and becomes narrow if they are lighter.
description: 4 pages, 3 figures. Submitted to LT25 on June 2008
Second-order shaped pulses for solid-state quantum computation
Creators: name: Pryadko, Leonid P.
name: Sengupta, Pinaki
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present the constructon and detailed analysis of highly-optimized self-refocusing pulse shapes for several rotation angles. We characterize the constructed pulses by the coefficients appearing in the Magnus expansion up to second order. This allows a semi-analytical analysis of the performance of the constructed shapes in sequences and composite pulses by computing the corresponding leading-order error operators. Higher orders can be analyzed with the numerical technique suggested by us previously. We illustrate the technique by analysing several composite pulses designed to protect against pulse amplitude errors, and on decoupling sequences for potentially long chains of qubits with on-site and nearest-neighbor couplings.
description: 16 pages, 29 figures
Enhancing Asset Management Intelligence: Best Practices in Data-Driven Decision Making
Creators: R. Otal
C.K. Ng
M. McGrath
C. Hayes
Publisher: name: IEEE
Year: 2018

2018 PES T&D Panel Presentation
Electric utilities continue to face substantial challenges - both internally and externally via state and provincial regulators, to make prudent decisions on their asset base in a customer-focused and economically justified manner, such that they are able to maximize the value of their assets. This panel will discuss the recent advancements that utilities have made through the introduction of risk-and-value-based asset management frameworks - allowing them to perform system-wide risk assessments, develop asset profiling and risk mitigation strategies and optimize investment plans and maintenance practices by balancing the risk of asset failure (including financial and socioeconomic risk factors) against the necessary capital costs to offset these risks within the system. This panel will also discuss the challenges that these utilities faced in implementing comprehensive asset data models in order to transition from age-andcondition-based frameworks to risk-and-value-based decision-making frameworks.
2MASS Two-color Interstellar Reddening Line in the Direction of the North America and Pelican Nebulae and the Cyg OB2 Association
Creators: name: Straizys, V.
name: Corbally, C. J.
name: Laugalys, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The slope of the interstellar reddening line in the J-H vs. H-Ks diagram of the 2MASS survey in the direction of the North America and Pelican nebulae, the L935 dust cloud and the Cyg OB2 association is determined. The MK types were either classified by C. J. Corbally or collected from the literature. The ratio E(J-H)/E(H-Ks) = 2.0 is obtained by taking the average for the four groups of spectral classes: O3--B1, B2--B6, B7--B9.5 and red clump giants. The obtained ratio is larger than the `typical' value, 1.7-1.8.
description: 18 pages, 6 figures
Liquid-liquid transition in supercooled silicon determined by first-principles simulation
Creators: name: Ganesh, P.
name: Widom, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: First principles molecular dynamics simulations reveal a liquid-liquid phase transition in supercooled elemental silicon. Two phases coexist below $T_c\approx 1232K$. The low density phase is nearly tetra-coordinated, with a pseudogap at the Fermi surface, while the high density phase is more highly coordinated and metallic in nature. The transition is observed through the formation of van der Waals loops in pressure-volume isotherms below $T_c$.
description: 9 pages 4 figures
Gedächtnisforschung interdisziplinär: die Medialität von kollektivem Gedächtnis beschreibbar und fassbar machen
Creators: name: Dittrich, Ulrike
Publisher: name: KULT_online
Year: 2005

description: Die vorgestellte Publikation ist aus der mehrjährigen Arbeit einer Sektion des Gießener Graduiertenzentrums Kulturwissenschaften hervorgegangen. Das Ziel der Herausgeber ist, die theoretisch und methodisch bislang wenig beachtete Rolle von Medien als Gedächtnisträger schärfer zu konturieren und eine Definition des Begriffs Gedächtnismedium zu erarbeiten. So wurden hier Gedächtnisforschung und Medientheorien miteinander in Verbindung gebracht, was sich als sehr konstruktiv und perspektivisch sinnvoll für die weitere Entwicklung der Gedächtnisforschung erweist. Die einzelnen geschichts- und kulturwissenschaftlichen, medien-, literatur- sowie politikwissenschaftlichen Beiträge reflektieren disziplin- und Fall-spezifisch den zu Beginn eingeführten Medienbegriff.
description: KULT_online, Nr. 05 (2005): KULT_online 05 (2005)
2019 IEEE General Meeting 8/7 Panel Presentation: Transmission Infrastructure Development for High Levels of Renewable Penetration
Creators: A. Figueroa-Acevedo
D.Osborn
B. Cova
K. Valley
T. Grove
I. Fernando
Publisher: name: IEEE
Year: 2019

2019 IEEE General Meeting 8/7 Panel Presentation: Transmission Infrastructure Development for High Levels of Renewable Penetration
Electric systems across the world are experiencing unprecedented changes in their generation fleet. These changes are being driven partly by regulation and in many other cases by economics. Legacy thermal generation is fast being replaced by renewable resources, mostly wind and solar generation. This evolving generation fleet poses significant operational challenges such as system operating flexibility, outage management, availability of reserves, and congestion management to note a few. As the penetration levels continue to grow, it is expected that significant upgrades will be required to be made to the transmission infrastructure to reliably & efficiently accommodate these resources.
This panel will focus on three main aspects of transmission system development for accommodating bulk quantities of renewable generation:
1) System studies, methodologies and tools for identification of efficient transmission solutions
2) Project experience in construction of large transmission facilities, including HVDC
3) Regulatory requirements and challenges in ensuring timely development
Romantik als Diskursformation
Creators: name: Heinen, Sandra
Publisher: name: KULT_online
Year: 2005

description: In seiner Habilitationsschrift unternimmt der Anglist Christoph Reinfandt eine Neukonzeptualisierung des in der Literaturwissenschaft seit längerem umstrittenen Begriffs der Romantik. Den Terminus, der traditionell zur Bezeichnung der Kulturproduktionen der Zeit von ca. 1780 bis ca. 1830 herangezogen wird, verwendet Reinfandt ausdrücklich nicht mehr als Epochenbegriff. Stattdessen beschreibt er Romantik als eine Diskursformation, die für die Kultur der Moderne insgesamt spezifische Funktionen übernimmt und deshalb bis in unsere Gegenwart wirksam ist.
description: KULT_online, Nr. 05 (2005): KULT_online 05 (2005)
Spin magnetosonic shocks in quantum plasmas
Creators: name: Misra, A. P.
name: Ghosh, N. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The one-dimensional shock structures of magnetosonic waves (MSWs) propagating in a dissipative quantum plasma medium is studied. A quantum magnetohydrodynamic (QMHD) model is used to take into account the quantum force term due to Bohm potential and the pressure-like spin force term for electrons. The nonlinear evolution (Korteweg de-Vries-Burger) equation, derived to describe the dynamics of small amplitude MSWs, where the dissipation is provided by the plasma resistivity, is solved numerically to obtain both oscillatory and monotonic shock structures. The shock strength decreases with increasing the effects of collective tunneling and increases with increasing the effects of spin alignment. The theoretical results could be of importance for astrophysical (e.g., magnetars) as well as for ultracold laboratory plasmas (e.g., Rydberg plasmas).
description: 8 pages, 4 figures
Dynamical origin of the Dwarf Planet Ceres
Creators: name: de Sousa, Rafael Ribeiro
name: Morbidelli, Alessandro
name: Gomes, Rodney
name: Neto, Ernesto Vieira
name: Izidoro, Andre
name: Alves, Abreuçon Atanasio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The Dwarf Planet Ceres revealed the presence of ammonia and other unique properties compared to other asteroids in the main belt which suggests that it was not formed in situ. We model the early dynamical evolution of the outer Solar System to study possible dynamical mechanisms to implant a Ceres-sized planetesimal in the asteroid belt from the trans-Saturnian region. We calculate that the fraction of the population of Ceres-sized planetesimals that are captured in the asteroid belt is in the range of 2.8e-5 to 1.2e-3 depending on the initial location in the outer planetesimal disk. The captured bodies have a 70% probability to have a semimajor axis between 2.5 and 3 au, a 33% probability to have an eccentricity smaller than 0.2 and a 45% probability to have an orbital inclination smaller than 10 degrees. Assuming the existence of 3,600 Ceres-size planetesimals in the inner part of the trans-Saturnian disk, consistent with the estimate of Nesvorny & Vokrouhlicky (2016) for the trans-Neptunian disk, our estimated capture probability and a final 80% depletion of the asteroid belt during the subsequent giant planet instability, lead to capture 1 Ceres in the asteroid belt, with a probability of 15%, 34%, and 51% to be located in the inner, middle and outer belt respectively.
Phase transition of the nucleon-antinucleon plasma at different ratios
Creators: name: Delfino, A.
name: Jansen, M.
name: Timóteo, V. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate phase transitions for the Walecka model at very high temperatures. As is well known, depending on the parametrization of this model and for the particular case of a zero chemical potential ($ μ$), a first order phase transition is possible \cite{theis}. We investigate this model for the case in which $ μ\ne 0 $. It turns out that, in this situation, phases with different values of antinucleon-nucleon ratios and net baryon densities may coexist. We present the temperature versus antinucleon-nucleon ratio as well as the temperature versus the net baryon density for the coexistence region. The temperature versus chemical potential phase diagram is also presented.
description: 5 pages, 8 figures
Literatur und Gedächtnis aus systemtheoretischer Perspektive
Creators: name: Neumann, Birgit
Publisher: name: KULT_online
Year: 2005

description: Obgleich die Systemtheorie ebenso wie Theorien zum kollektiven Gedächtnis aus der aktuellen kulturwissenschaftlichen Debatte kaum mehr wegzudenken sind, mangelt es bislang an Versuchen, sie in einen wechselseitigen Dialog treten zu lassen. Mirjam-Kerstin Holl erprobt diese produktive Synthese und gelangt auf diese Weise zu einem Literaturkonzept, das die Besonderheiten und Privilegien des Symbolsystems Literatur ebenso begreifbar macht wie die Funktionen, die Literatur als Sozialsystem übernehmen kann.
description: KULT_online, Nr. 05 (2005): KULT_online 05 (2005)
Are Electric Utilities Ready for the Era of Big Data?
Creators: N. Yu
M. Massoumy
D. Dorr
P. Zhao
K. Chen
Publisher: name: IEEE
Year: 2018

2018 PES T&D Panel Presentation
The electric utility industry is being swamped by petabytes of data coming from various sources such as smart meters, phasor measurement units, SCADA systems, equipment monitors, geographical information system and customer management. The primary and secondary value embedded in the complex and heterogeneous data sets from power distribution systems is immense. However, strategies for unlocking the potential of big data in power systems are at an early stage of development. This panel will bring together big data analytics experts from the industry and academia to discuss recent developments of big data applications and value proposition of these applications in power systems.
Das Kunstwerk als Geschichtsquelle: Einblicke in die vormoderne 'art world'
Creators: name: Vogel, Christine
Publisher: name: KULT_online
Year: 2005

description: Wie kann die Geschichtswissenschaft Kunstwerke sinnvoll als Quellen nutzen? - Dieser nur auf den ersten Blick schlichten Frage geht der Züricher Historiker Bernd Roeck nach. Er reiht sich damit in die aktuellen Debatten um einen "visual turn" in den Kultur- und Geschichtswissenschaften ein und plädiert dafür, die Textfixierung der Geschichte im Rahmen neuer kulturhistorischer Ansätze aufzubrechen. Indem er das Feld des interdisziplinären Dialogs zwischen Kunstgeschichte und Geschichtswissenschaft klarer zu konturieren versucht, zeigt er in aller Deutlichkeit das Potential, aber auch die Grenzen der Quellenfunktion von Kunstwerken auf.
description: KULT_online, Nr. 05 (2005): KULT_online 05 (2005)
Transport and anisotropy in single-crystalline SrFe$_2$As$_2$ and $A_{0.6}$K$_{0.4}$Fe$_2$As$_2$ ($A$ = Sr, Ba) superconductors
Creators: name: Chen, G. F.
name: Li, Z.
name: Dong, J.
name: Li, G.
name: Hu, W. Z.
name: Zhang, X. D.
name: Song, X. H.
name: Zheng, P.
name: Wang, N. L.
name: Luo, J. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have successfully grown high quality single crystals of SrFe$_2$As$_2$ and A$_{0.6}$K$_{0.4}$Fe$_2$As$_2$(A=Sr, Ba) using flux method. The resistivity, specific heat and Hall coefficient have been measured. For parent compound SrFe$_2$As$_2$, an anisotropic resistivity with $ρ_c$ / $ρ_{ab}$ as large as 130 is obtained at low temperatures. A sharp drop in both in-plane and out-plane resistivity due to the SDW instability is observed below 200 K. The angular dependence of in-plane magnetoresistance shows 2-fold symmetry with field rotating within ab plane below SDW transition temperature. This is consistent with a stripe-type spin ordering in SDW state. In K doped A$_{0.6}$K$_{0.4}$Fe$_2$As$_2$(A=Sr. Ba), the SDW instability is suppressed and the superconductivity appears with T$_c$ above 35 K. The rather low anisotropy in upper critical field between H$\parallel$ab and H$\parallel$c indicates inter-plane coupling play an important role in hole doped Fe-based superconductors.
description: 12 pages, 6 figures. Accepted by Phys. Rev. B
Reality Check on Energy Storage
Creators: D. Geier
V. Kaushik
S. Bahramirad
E. Seidler
R. Candela
Publisher: name: IEEE
Year: 2018

2018 PES T&D Panel Presentation
Energy storage promises the ability to mitigate renewable DER variability and improve T&D utilization and economics. "Shared applications"- multiple use of the same energy storage device, is important to realizing the best economic potential from this technology. Regulatory and market paradigms are essential for supporting the rapid adoption of these technologies and the most effective uses by allowing "stacked applications". This session will address practical aspects of deploying energy storage, such as operational issues and benefits, as well as regulatory, market and life-cycle viewpoints. The panel's diverse business and technical leaders will discuss their experience with maximizing the value of energy storage by utilizing analytical tools and processes to identify storage sizing, application selection and value proposition, as well as opportunities for optimal use of existing and new storage installations.
Inszenierte Authentizität in amerikanischen 'historic sites'
Creators: name: Hoth, Stephanie
Publisher: name: KULT_online
Year: 2005

description: Mit ihrer Dissertation hat die Amerikanistin Sabine Schindler einen soliden und vor allem praxisnahen Beitrag zur Debatte um das Verhältnis von Geschichte und Erinnerung geleistet. Im Mittelpunkt ihrer Studie stehen die drei amerikanischen historischen Stätten Mount Vernon, Colonial Williamsburg und Plimoth Plantation, die auf unterschiedliche Weise verschiedene Aspekte des Gründungsmythos' der USA museal inszenieren. Die deutlichsten Unterschiede in der Inszenierung ergeben sich dabei aus dem Authentizitätsanspruch des in der Stätte Dargestellten, der darin besteht, ein "stimmiges" Bild der Vergangenheit zu erhalten. Schindlers Kerninteresse liegt darin, darzustellen, welche Rolle das Zusammenspiel von Inszenierung und Authentizität in den historic sites spielt und was geschieht, wenn eben dieses nicht funktioniert.
description: KULT_online, Nr. 05 (2005): KULT_online 05 (2005)
Observation of bottom-up formation for charged grain aggregates related to pre-planetary evolution beyond the bouncing barrier
Creators: name: Jungmann, Felix
name: Wurm, Gerhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Context. Particles in protoplanetary disks go through a number of phases that are dominated by collisions. In each of these events, grains exchange electrical charge via triboelectric effects. This enhances the stability of particle aggregates. Aim. Dielectric grains are easily charged by collisions. Here, we investigate whether a charge is capable of inducing an aggregation of particles and we consider how collision properties, such as ticking velocities and collisional cross-sections, are altered. Methods. We explored aggregation in microgravity experiments based on the observation of the motion of submillimeter (submm) grains following many collisions. In the process, grains attract each other, collide, stick, and ultimately form small aggregates. Results. We observed a bottom-up formation of irregular aggregates from submm grains. While some of the observed trajectories during the approach of grains reflect the presence of a pure Coulomb potential, the motion is not always in agreement with pure Kepler motion. Higher-order potentials of multipole charge distributions stand as a plausible explanation for this behavior. An immediate consequence of charging is that the particles continue to stick to each other at velocities of $\sim 10 \, \rm cm/s,$ while surface forces of neutral grains are only expected to allow sticking below $\sim 1 \, \rm mm/s$. No bouncing collision was observed among hundreds of collisions in the given parameter range. Applied to early phases of planet formation, the forming aggregates are therefore the first steps in a new growth phase beyond the traditional bouncing barrier in planet formation.
Pragmatische Einblicke in eine heterogene Diskussion
Creators: name: Springer, Angela
Publisher: name: KULT_online
Year: 2005

description: Der vorliegende Sammelband behandelt mit dem selbstgesteuerten Lernen eines der prominentesten Themen der Erwachsenen-/Weiterbildung der letzten fünfzehn Jahre. In einem Theorie- und einem Praxisteil werden grundlegende Dimensionen des Begriffs aus unterschiedlichen Blickwinkeln beleuchtet und Möglichkeiten der Umsetzung in die Weiterbildungspraxis diskutiert. Insgesamt bildet der Band damit das breite Spektrum der aktuellen Debatte ab. Dabei gibt er zwar keinen systematischen Überblick aber doch pragmatische Einblicke in ein nach wie vor ebenso heterogenes wie kontrovers diskutiertes Themenfeld aktueller Erwachsenenpädagogik.
description: KULT_online, Nr. 05 (2005): KULT_online 05 (2005)
Quantum theta functions and Gabor frames for modulation spaces
Creators: name: Luef, Franz
name: Manin, Yuri I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 42C15, 46L89

description: Representations of the celebrated Heisenberg commutation relations in quantum mechanics and their exponentiated versions form the starting point for a number of basic constructions, both in mathematics and mathematical physics (geometric quantization, quantum tori, classical and quantum theta functions) and signal analysis (Gabor analysis). In this paper we try to bridge the two communities, represented by the two co--authors: that of noncommutative geometry and that of signal analysis. After providing a brief comparative dictionary of the two languages, we will show e.g. that the Janssen representation of Gabor frames with generalized Gaussians as Gabor atoms yields in a natural way quantum theta functions, and that the Rieffel scalar product and associativity relations underlie both the functional equations for quantum thetas and the Fundamental Identity of Gabor analysis.
description: 38 pages, typos corrected, MSC class changed
Common training programme for OR's R&I actors
Creators: name: Silveira, Lina
name: Nascimento, Gisela
name: Paramio, Luz
name: Estima, Deborah
Publisher: name: Zenodo
Year: 2020
Subjects: ORs
Outermost regions
Research
Innovation
Capacity building
Research excellence

description: Project deliverable including a common training programme for Outermost Regions' R&I actors to provide a common basis for the implementation of capacity building activities for R&I actors in the 9 Outermost Regions.
Hints of theta_13>0 from global neutrino data analysis
Creators: name: Fogli, G. L.
name: Lisi, E.
name: Marrone, A.
name: Palazzo, A.
name: Rotunno, A. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Nailing down the unknown neutrino mixing angle theta_13 is one of the most important goals in current lepton physics. In this context, we perform a global analysis of neutrino oscillation data, focusing on theta_13, and including recent results [Neutrino 2008, Proceedings of the XXIII International Conference on Neutrino Physics and Astrophysics, Christchurch, New Zealand, 2008 (unpublished)]. We discuss two converging hints of theta_13>0, each at the level of ~1sigma: an older one coming from atmospheric neutrino data, and a newer one coming from the combination of solar and long-baseline reactor neutrino data. Their combination provides the global estimate sin^2(theta_13) = 0.016 +- 0.010 (1sigma), implying a preference for θ_13>0 with non-negligible statistical significance (~90% C.L.). We discuss possible refinements of the experimental data analyses, which might sharpen such intriguing indication.
description: Minor changes in the text. Matches published version in PRL
Wegweiser durchs Gattungsdickicht: Rüdiger Zymners Studie zur literaturwissenschaftlichen Gattungstheorie
Creators: name: Nadj, Julijana
Publisher: name: KULT_online
Year: 2005

description: Um das spezifische Leistungsvermögen der Gattungstheorie als theoretisches Instrumentarium erfassen zu können, ist eine solide Kenntnis der verschiedenen Ansätze, Richtungen, eben der "Probleme und Positionen" der gattungstheoretischen Literaturwissenschaft, erforderlich. Die vorliegende Studie hat es sich zur Aufgabe gemacht, eine solche literaturwissenschaftliche Basisarbeit zu leisten. Ausgehend von der historischen Entwicklung der Gattungstheorie, stellt Zymner umfassend v.a. die dieser Teildisziplin inhärente Problematik von Begriffsfindung bzw. terminologischer Bestimmung dar und fasst die verschiedenen Aspekte der Gattungstheorie prägnant zusammen. Durch ihre insgesamt gelungene Strukturierung und die klare Argumentation ist die Studie gerade auch für Studierende geeignet, die sich in diese literaturtheoretischen Teilgebiete einarbeiten wollen.
description: KULT_online, Nr. 05 (2005): KULT_online 05 (2005)
2019 IEEE General Meeting Panel Presentation: Smart Grid Technology
Creators: M. Negevitsky
S. Chakrabarti
P. Mandal
S. Kulkarni
Publisher: name: IEEE
Year: 2019

2019 IEEE General Meeting Panel Presentation: Smart Grid Technology
This panel session is devoted to contribution to Smart Grid Technology on various aspects right from generation to utilization of energy going via transmission & distribution with more and more penetration of renewable energy resources to the power system. Achievement of high level of efficiency, quality of electricity, cost minimization, sustainability, optimum utilization of existing assets, etc. with innovative technology are the aspects that are expected to be reported upon.
Cosmic rays studied with a hybrid high school detector array
Creators: name: Nigl, A.
name: Timmermans, C.
name: Schellart, P.
name: Kuijpers, J.
name: Falcke, H.
name: Horneffer, A.
name: de Vos, C. M.
name: Koopman, Y.
name: Pepping, H. J.
name: Schoonderbeek, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The LORUN/NAHSA system is a pathfinder for hybrid cosmic ray research combined with education and outreach in the field of astro-particle physics. Particle detectors and radio antennae were mainly setup by students and placed on public buildings. After fully digital data acquisition, coincidence detections were selected. Three candidate events confirmed a working prototype, which can be multiplied to extend further particle detector arrays on high schools.
description: 10 pages, 6 figures. Nigl, A., Timmermans, C., Schellart, P., Kuijpers, J., Falcke, H., Horneffer, A., de Vos, C. M., Koopman, Y., Pepping, H. J., Schoonderbeek, G., Cosmic rays studied with a hybrid high school detector array, Europhysics News (EPN), Vol. 38, No. 5, accepted on 22/08/2007
Dust ion-acoustic shocks in quantum dusty pair-ion plasmas
Creators: name: Misra, A. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The formation of dust ion-acoustic shocks (DIASs) in a four-component quantum plasma whose constituents are electrons, both positive and negative ions and immobile charged dust grains, is studied. The effects of both the dissipation due to kinematic viscosity and the dispersion caused by the charge separation as well as the quantum tunneling due to the Bohm potential are taken into account. The propagation of small but finite amplitude dust ion-acoustic waves (DIAWs) is governed by the Korteweg-de Vries-Burger (KdVB) equation which exhibits both oscillatory and monotonic shocks depending not only on the viscosity parameters, but also on the quantum parameter H (the ratio of the electron plasmon to the electron Fermi energy) and the positive to negative ion density ratio. Large amplitude stationary shocks are recovered for a Mach number exceeding its critical value. Unlike the small amplitude shocks, quite a smaller value of the viscosity parameter, H and the density ratio may lead to the large amplitude monotonic shock strucutres. The results could be of importance in astrophysical and laser produced plasmas.
description: 15 pages, 5 figures
2019 IEEE General Meeting Panel Presentation: Risk-Based System Planning and Operation
Creators: Y. Makarov
B. Hobbs
P. Panciatici
H. Gugel
A. Alam
Publisher: name: IEEE
Year: 2019

2019 IEEE General Meeting Panel Presentation: Risk-Based System Planning and Operation
From Historical Data Collection to Determine Probability of Occurrence of Specific Events, Risk-based Security Assessment to Quantify Severity of Impact, Integrated Generation and Transmission Planning practices, to Developing Standards using Risk-Based Approaches.
Resonant circular photogalvanic effect in GaN/AlGaN heterojunctions
Creators: name: Wittmann, B.
name: Golub, L. E.
name: Danilov, S. N.
name: Karch, J.
name: Reitmaier, C.
name: Kvon, Z. D.
name: Vinh, N. Q.
name: van der Meer, A. F. G.
name: Murdin, B.
name: Ganichev, S. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The resonant circular photogalvanic effect is observed in wurtzite (0001)-oriented GaN low-dimensional structures excited by infrared radiation. The current is induced by angular momentum transfer of photons to the photoexcited electrons at resonant inter-subband optical transitions in a GaN/AlGaN heterojunction. The signal reverses upon the reversal of the radiation helicity or, at fixed helicity, when the propagation direction of the photons is reversed. Making use of the tunability of the free-electron laser FELIX we demonstrate that the current direction changes by sweeping the photon energy through the intersubband resonance condition, in agreement with theoretical considerations.
Graphical description of Pauli measurements on stabilizer states
Creators: name: Elliott, Matthew B.
name: Eastin, Bryan
name: Caves, Carlton M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use a graphical representation of stabilizer states to describe, simply and efficiently, the effect of measurements of Pauli products on stabilizer states. This work complements our earlier work [Phys. Rev. A 77, 042307 (2008)], which described in graphical terms the action of Clifford operations on stabilizer states.
description: 8 pages, 4 figures
Economic and Reliability Benefits of Power Flow Control Technologies: Hardware and Software
Creators: E. Ela
T. Nudell
P. Ruiz
B. Li
Publisher: name: IEEE
Year: 2018

2018 PES T&D Panel Presentation
Power systems across the world experience transmission congestion that can lead to significant costs. In the United States, billions of dollars a year are incurred due to transmission congestion. Numerous power flow control technologies- both hardware solutions and software solutions, can be used to reduce transmission network congestion and potentially save billions of dollars, as well as improve power system reliability without necessarily needing any additional transmission capability built. This panel will focus on the ways in which manufacturers, software vendors and system operators are evaluating ways to incorporate these technologies into the bulk power system and the potential benefits that they can provide.
Local light-ray rotation
Creators: name: Hamilton, Alasdair C.
name: Sundar, Bhuvanesh
name: Nelson, John
name: Courtial, Johannes
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a sheet structure that rotates the local ray direction through an arbitrary angle around the sheet normal. The sheet structure consists of two parallel Dove-prism sheets, each of which flips one component of the local direction of transmitted light rays. Together, the two sheets rotate transmitted light rays around the sheet normal. We show that the direction under which a point light source is seen is given by a Mobius transform. We illustrate some of the properties with movies calculated by ray-tracing software.
description: 9 pages, 6 figures
title: Front Matter, Table of Contents, Preface, Organization, List of Authors
Creators: name: Chatzigiannakis, Ioannis
name: Mitzenmacher, Michael
name: Rabani, Yuval
name: Sangiorgi, Davide
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2016
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Organization
subject: List of Authors

description: Front Matter, Table of Contents, Preface, Organization, List of Authors
description: LIPIcs, Vol. 55, 43rd International Colloquium on Automata, Languages, and Programming (ICALP 2016), pages 0:i-0:xliv
(R)Evolution: Taking LOFAR's M&C into the 2020s
Creators: name: Jürges, Thomas
Publisher: name: Zenodo
Year: 2019
Subjects: telescope, instrumentation, software, monitor and control, m&c, distributed system

description: The Monitor & Control system (M&C) for ASTRON's LOFAR telescope is showing its age. Although it still performs its job and it is still reliable most of the time, it is not ready for the next step that will take LOFAR into the 2020s. The coming LOFAR upgrades through the "Digital Upgrade for Premier LOFAR Low-band Observing" project (DUPLLO) and the future extension "LOFAR for Space Weather" (LOFAR4SW) will present new challenges that should be addressed by a modern M&C system: a heterogenous hardware device landscape, uniform hardware access interfaces, high monitor data rates to assist preventive maintenance decision making and thereby improve general data quality.
 Contrary to the old design of the LOFAR 1.0 M&C system, the new foundation for the LOFAR 2.0 M&C system will be a strict adherence to the KISS principle: Keep It Simple, Sweetheart. Namely OPC UA interfaces for hardware and software devices, one interface serves one purpose, containerisation of M&C software for better portability where possible and more efficient testability, faster turnaround times and more robustness for software changes.