cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Galaxy Clusters around radio-loud AGN at 1.3 < z < 3.2 as seen by Spitzer
Creators: name: Wylezalek, D.
name: Galametz, A.
name: Stern, D.
name: Vernet, J.
name: De Breuck, C.
name: Seymour, N.
name: Brodwin, M.
name: Eisenhardt, P. M.
name: Gonzalez, A. H.
name: Hatch, N.
name: Jarvis, M.
name: Rettura, A.
name: Stanford, S. A.
name: Stevens, J. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report the first results from the Clusters Around Radio-Loud AGN (CARLA) program, a Cycle 7 and 8 Spitzer Space Telescope snapshot program to investigate the environments of a large sample of obscured and unobscured luminous radio-loud AGN at 1.2 < z < 3.2. These data, obtained for 387 fields, reach 3.6 and 4.5 um depths of [3.6] (AB) = 22.6 and [4.5] (AB) = 22.9 at the 95% completeness level, which is two to three times fainter than L* in this redshift range. By using the color cut [3.6]-[4.5] > -0.1 (AB), which efficiently selects high-redshift (z > 1.3) galaxies of all types, we identify galaxy cluster member candidates in the fields of the radio-loud AGN. The local density of these IRAC-selected sources is compared to the density of similarly selected sources in blank fields. We find that 92% of the radio-loud AGN reside in environments richer than average. The majority (55%) of the radio-loud AGN fields are found to be overdense at a > 2 σ level; 10% are overdense at a > 5 σ level. A clear rise in surface density of IRAC-selected sources towards the position of the radio-loud AGN strongly supports an association of the majority of the IRAC-selected sources with the radio-loud AGN. Our results provide solid statistical evidence that radio-loud AGN are likely beacons for finding high-redshift galaxy (proto-)clusters. We investigate how environment depends on AGN type (unobscured radio-loud quasars vs. obscured radio galaxies), radio luminosity and redshift, finding no correlation with either AGN type or radio luminosity. We find a decrease in density with redshift, consistent with galaxy evolution for this uniform, flux-limited survey. These results are consistent with expectations from the orientation-driven AGN unification model, at least for the high radio luminosity regimes considered in this sample.
description: 11 pages, accepted for publication in ApJ
title: Comparative environmental footprint analysis of ultra-high-performance concrete using Portland cement and alkali-activated materials
Creators: name: Glanz, Dilan
name: Sameer, Husam
name: Göbel, Daniela
name: Wetzel, Alexander
name: Middendorf, Bernhard
name: Mostert, Clemens
name: Bringezu, Stefan
Publisher: name: Universität Kassel
Year: 2023
Subjects: subject: 620
subject: Portlandzement
subject: Ökologischer Fußabdruck
subject: Ultrahochfester Beton

description: Gefördert durch den Publikationsfonds der Universität Kassel
Non-Equilibrium Modeling of Arc Plasma Torches
Creators: name: Trelles, J. P.
name: Pfender, E.
name: Heberlein, J. V. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A two-temperature thermal non-equilibrium model is developed and applied to the three-dimensional and time-dependent simulation of the flow inside a DC arc plasma torch. A detailed comparison of the results of the non-equilibrium model with those of an equilibrium model is presented. The fluid and electromagnetic equations in both models are approximated numerically in a fully-coupled approach by a variational multi-scale finite element method. In contrast to the equilibrium model, the non-equilibrium model did not need a separate reattachment model to produce an arc reattachment process and to limit the magnitude of the total voltage drop and arc length. The non-equilibrium results show large non-equilibrium regions in the plasma - cold-flow interaction region and close to the anode surface. Marked differences in the arc dynamics, especially in the arc reattachment process, and in the magnitudes of the total voltage drop and outlet temperatures and velocities between the models are observed. The non-equilibrium results show improved agreement with experimental observations.
Quantum error correction and detection: quantitative analysis of a coherent-state amplitude damping code
Creators: name: Wickert, Ricardo
name: van Loock, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We re-examine a non-Gaussian quantum error correction code designed to protect optical coherent-state qubits against errors due to an amplitude damping channel. We improve on a previous result [Phys. Rev. A 81, 062344 (2010)] by providing a tighter upper bound on the performance attained when considering realistic assumptions which constrain the operation of the gates employed in the scheme. The quantitative characterization is performed through measures of fidelity and concurrence, the latter obtained by employing the code as an entanglement distillation protocol. We find that, when running the code in fully-deterministic error correction mode, direct transmission can only be beaten for certain combinations of channel and input state parameters, whereas in error detection mode, the usage of higher repetition encodings remains beneficial throughout.
description: 8 pages, 7 figures
Extended Supersymmetry and BPS solutions in baby Skyrme models
Creators: name: Adam, C.
name: Queiruga, J. M.
name: Sanchez-Guillen, J.
name: Wereszczynski, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We continue the investigation of supersymmetric extensions of baby Skyrme models in d=2+1 dimensions. In a first step, we show that the CP(1) form of the baby Skyrme model allows for the same N=1 SUSY extension as its O(3) formulation. Then we construct the N=1 SUSY extension of the gauged baby Skyrme model, i.e., the baby Skyrme model coupled to Maxwell electrodynamics. In a next step, we investigate the issue of N=2 SUSY extensions of baby Skyrme models. We find that all gauged and ungauged submodels of the baby Skyrme model which support BPS soliton solutions allow for an N=2 extension such that the BPS solutions are one-half BPS states (i.e., annihilated by one-half of the SUSY charges). In the course of our investigation, we also derive the general BPS equations for completely general N=2 supersymmetric field theories of (both gauged and ungauged) chiral superfields, and apply them to the gauged nonlinear sigma model as a further, concrete example.
description: 32 pages, Latex file
An asymptotic model in acoustics: acoustic drift equations
Creators: name: Vladimirov, Vladimir A.
name: Ilin, Konstantin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 76N99

description: A rigorous asymptotic procedure with the Mach number as a small parameter is used to derive the equations of mean flows which coexist and are affected by the background acoustic waves in the limit of very high Reynolds number.
Observation of a low-lying neutron-unbound state in 19C
Creators: name: Thoennessen, M.
name: Mosby, S.
name: Badger, N. S.
name: Baumann, T.
name: Bazin, D.
name: Bennett, M.
name: Brown, J.
name: Christian, G.
name: DeYoung, P. A.
name: Finck, J. E.
name: Gardner, M.
name: Hook, E. A.
name: Luther, B.
name: Meyer, D. A.
name: Mosby, M.
name: Rogers, W. F.
name: Smith, J. K.
name: Spyrou, A.
name: Strongman, M. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Proton removal reactions from a secondary 22N beam were utilized to populate unbound states in neutron-rich carbon isotopes. Neutrons were measured with the Modular Neutron Array (MoNA) in coincidence with carbon fragments. A resonance with a decay energy of 76(14) keV was observed in the system 18C+n corresponding to a state in 19C at an excitation energy of 653(95)keV. This resonance could correspond to the first 5/2+ state which was recently speculated to be unbound in order to describe 1n and 2n removal cross section measurements from 20C.
description: accepted for publication in Nucl. Phys. A
Analytical model of the in-plane torsion test
Creators: name: Cwiekala, Nils
name: Traphöner, Heinrich
name: Haupt, Peter
name: Clausmeyer, Till
name: Tekkaya, A. Erman
Publisher: name: TU Dortmund
Year: 2022
Subjects: subject: 620
subject: 670
subject: Torsionsversuch
subject: Plastische Deformation
subject: Dualphasenstahl
subject: Verzerrungstensor
subject: Differential-algebraisches Gleichungssystem
subject: Zerstörende Werkstoffprüfung
subject: Elastoplastizität

description: In research and industry, the in-plane torsion test is applied to investigate the material behaviour at large plastic strains: a sheet is clamped in two concentric circles, the boundaries are twisted against each other applying a torque, and simple shear of the material arises. This deformation is analysed within the scope of finite elasto-plasticity. An additive decomposition of the Almansi strain tensor is derived, valid as an approximation for arbitrary large plastic strains and sufficiently small elastic strains and rotations. Constitutive assumptions are the von Mises yield criterion, an associative flow rule, isotropic hardening, and a physically linear elasticity relation. The incremental formulation of the elasticity relation applies covariant Oldroyd derivatives of the stress and the strain tensors. The assumptions combined with equilibrium conditions lead to evolution equations for the distribution of stresses and accumulated plastic strain. The nonzero circumferential stress must be determined from the equilibrium condition because no deformation is present in tangential direction. As a result, a differential-algebraic-equation (DAE) system is derived, consisting of three ordinary differential equations combined with one algebraic side condition. As an example material, properties of a dual phase steel DP600 are analysed numerically at an accumulated plastic strain of 3.0. Radial normal stresses of 3.1% and tangential normal stresses of 1.0% of the shear stresses are determined. The influence of the additional normal stresses on the determination of the flow curve is 0.024%, which is negligibly small in comparison with other experimental influences and measurement accuracies affecting the experimental flow curve determination.
description: Acta mechanica;233(2)
title: Intervention in established immune responses by feeding protein antigens
Creators: name: Leishman, Andrew James
Publisher: name: University of Glasgow
Year: 1998

description: The gastrointestinal (GI) tract is exposed continuously to a variety of foreign antigens that range from soluble dietary proteins to numerous pathogens and is thus the major site of antigenic challenge in the body. Whereas infection with a mucosal pathogen results in an active primary immune response followed by memory to subsequent exposure, oral administration of soluble antigens results in a suppressed response to subsequent systemic exposure to the antigen. This phenomenon is termed oral tolerance and its physiological role may be to prevent food hypersensitivities. In addition it may provide a potent therapy for a variety of autoimmune and inflammatory disorders. However, oral tolerance is also a major obstacle to the development of oral vaccines. Although there is a substantial amount of evidence that suggests that suppression of autoimmunity by orally administered antigen is a feasible and therapeutic option, most existing studies of oral tolerance have explored the mechanisms responsible for the ability of fed antigen to prevent subsequent systemic immune responses in previously naive animals. Little is known about the mechanisms which determine the induction of oral tolerance in the primed immune system. Thus the aims of my studies were to define feeding regimes for inducing optimal oral tolerance in primed mice, to establish the effects of feeding antigen to primed mice on a variety of parameters of systemic immunity in vivo and in vitro and to investigate the mechanisms of oral tolerance in primed mice. I used a model antigen in my studies so that I could exploit experimental systems already developed in the laboratory for the induction and assessment of oral tolerance to OVA in naive mice. Thus I examined a variety of antigen doses administered at different times after priming with OVA/CFA and investigated the scope of responses influenced by the tolerance.
Measuring light-ion production and fission cross sections versus elastic np-scattering at the upcoming NFS facility
Creators: name: Jansson, K.
name: Gustavsson, C.
name: Pomp, S.
name: Prokofiev, A. V.
name: Scian, G.
name: Tarrío, D.
name: Tippawan, U.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Medley setup is planned to be moved to and used at the new neutron facility NFS where measurements of light-ion production and fission cross-sections are planned at 1-40 MeV. Medley has eight detector telescopes providing Delta E-Delta E-E data, each consisting of two silicon detectors and a CsI(Tl) detector at the back. The telescope setup is rotatable and can be made to cover any angle. Medley has previously been used in many measurements at The Svedberg Laboratory (TSL) in Uppsala mainly with a quasi-mono-energetic neutron beam at 96 and 175 MeV. To be able to do measurements at NFS, which will have a white neutron beam, Medley needs to detect the reaction products with a high temporal resolution providing the ToF of the primary neutron. In this paper we discuss the design of the Medley upgrade along with simulations of the setup. We explore the use of Parallel Plate Avalanche Counters (PPACs) which work very well for detecting fission fragments but require more consideration for detecting deeply penetrating particles.
description: 3 pages, 4 figures, Proc. 2013 International Conference on Nuclear Data for Science & Technology (ND2013), March 4-8, 2013, New York, USA, to be published in Nuclear Data Sheets
การศึกษาสภาพการเลี้ยง เศรษฐกิจ และความต้องการลักษณะภายนอกด้วยภูมิปัญญาท้องถิ่นของเกษตรกร ในการอนุรักษ์และพัฒนาควายไทยในจังหวัดอุดรธานี
Creators: name: กชกร สายพัฒน์
Publisher: name: คณะเทคโนโลยีการเกษตร มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2023
Subjects: สภาพการเลี้ยง
เศรษฐกิจ
ความต้องการลักษณะภายนอก
ควายไทย
จังหวัดอุดรธานี

description: วารสารเกษตรพระวรุณ, 20, 1, 113-119
Metal-mass-to-light ratios of the Perseus cluster out to the virial radius
Creators: name: Matsushita, K.
name: Sakuma, E.
name: Sasaki, T.
name: Sato, K.
name: Simionescu, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyzed XMM-Newton data of the Perseus cluster out to $\sim$1 Mpc, or approximately half the virial radius. Using the flux ratios of Lyalpha lines of H-like Si and S to Kalpha line of He-like Fe, the abundance ratios of Si/Fe and S/Fe of the intracluster medium (ICM) were derived using the APEC plasma code v2.0.1. The temperature dependence of the line ratio limits the systematic uncertainty in the derived abundance ratio. The Si/Fe and S/Fe in the ICM of the Perseus cluster show no radial gradient. The emission-weighted averages of the Si/Fe and S/Fe ratios outside the cool core are 0.91 +- 0.08 and 0.93 +- 0.10, respectively, in solar units according to the solar abundance table of Lodders (2003). These ratios indicate that most Fe was synthesized by supernovae Ia. We collected K-band luminosities of galaxies and calculated the ratio of Fe and Si mass in the ICM to K-band luminosity, iron-mass-to-light ratio (IMLR) and silicon-mass-to-light ratio (SMLR). Within $\sim$1 Mpc, the cumulative IMLR and SMLR increase with radius. Using Suzaku data for the northwest and east directions, we also calculated the IMLR out to $\sim$ 1.8 Mpc, or about the virial radius. We constrained the SMLR out to this radius and discussed the slope of the initial mass function of stars in the cluster. Using the cumulative IMLR profile, we discuss the past supernova Ia rate.
description: 15 pages, 11 figures, accepted for publication in the Astrophysical Journal
title: Zeit im Umbruch. Spätantike und frühes Mittelalter in Regensburg und Ostbayern, Regensburg 12.-13. Oktober 2000
Creators: name: Porsche, Monika
Publisher: name: University Library Heidelberg
Year: 2015

description: Tagungsbericht zu: Zeit im Umbruch. Spätantike und frühes Mittelalter in Regensburg und Ostbayern, Regensburg 12.-13. Oktober 2000
Early UV/Optical Emission of The Type Ib SN 2008D
Creators: name: Bersten, Melina C.
name: Tanaka, Masaomi
name: Tominaga, Nozomu
name: Benvenuto, Omar G.
name: Nomoto, Ken'ichi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We propose an alternative explanation for the post-breakout emission of SN 2008D associated with the X-ray transient 080109. Observations of this object show a very small contrast of 0.35 dex between the light-curve minimum occurring soon after the breakout, and the main luminosity peak that is due to radioactive heating of the ejecta. Hydrodynamical models show that the cooling of a shocked Wolf-Rayet star leads to a much greater difference (> 0.9 dex). Our proposed scenario is that of a jet produced during the explosion which deposits 56Ni-rich material in the outer layers of the ejecta. The presence of high-velocity radioactive material allows us to reproduce the complete luminosity evolution of the object. Without outer 56Ni it could be possible to reproduce the early emission purely from cooling of the shocked envelope by assuming a larger progenitor than a Wolf-Rayet star, but that would require an initial density structure significantly different from what is predicted by stellar evolution models. Analytic models of the cooling phase have been proposed reproduce the early emission of SN 2008D with an extended progenitor. However, we found that the models are valid only until 1.5 days after the explosion where only two data of SN 2008D are available. We also discuss the possibility of the interaction of the ejecta with a binary companion, based on published analytic expressions. However, the binary separation required to fit the early emission should be < 3 Rsun which is too small for a system containing two massive stars.
description: 10 pages, 10 figures, Accepted for publication in ApJ
title: Felicia Schmaedecke: Das Münster Sankt Fridolin in Säckingen. Forschungen und Berichte der Archäologie des Mittelalters in Baden- Württemberg, Band 24, Stuttgart 1999
Creators: name: Wemhoff, Matthias
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Felicia Schmaedecke: Das Münster Sankt Fridolin in Säckingen. Forschungen und Berichte der Archäologie des Mittelalters in Baden-Württemberg, Band 24, Stuttgart 1999.
Transitorische Literatur und ihre codierten Fassungen im Internet Archive
Creators: name: Knapp, Lore
name: Schlesinger, Claus-Michael
Publisher: name: Zenodo
Year: 2022

description: Diese Präsentation wurde beim Workshop „Digitale Schriftlichkeit - Programmieren, Prozessieren und Codieren von Schrift“ an der Universität Düsseldorf (online) am 16.12.2022 gehalten. Die Präsentation beschäftigt sich mit dem Blog "Ze zurrealism itzelf" von Dana Buchzik in seiner zeitlichen Entwicklung und beschreibt die Poetik des Blogs, die Struktur des Archivobjekts im Internet Archive sowie eine Rekonstruktion von Fassungen auf Basis des Archivobjekts. In diesem Repository sind die Präsentation, der Vortragstext zu Teil 1 (Lore Knapp) und die Notizen zu Teil 2 (Claus-Michael Schlesinger) hinterlegt.
title: Manfred Gläser (Hrsg.): »Ich fühle mich wie Kolumbus«. 25 Jahre Arbeitsamt und Archäologie (Ausstellungen zur Archäologie in Lübeck 4). Lübeck 2002
Creators: name: Schneider, Manfred
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Manfred Gläser (Hrsg.): »Ich fühle mich wie Kolumbus«. 25 Jahre Arbeitsamt und Archäologie (Ausstellungen zur Archäologie in Lübeck 4). Lübeck 2002. 136 Seiten
A quantum logic gate between a solid-state quantum bit and a photon
Creators: name: Kim, Hyochul
name: Bose, Ranojoy
name: Shen, Thomas C.
name: Solomon, Glenn S.
name: Waks, Edo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Integrated quantum photonics provides a promising route towards scalable solid-state implementations of quantum networks, quantum computers, and ultra-low power opto-electronic devices. A key component for many of these applications is the photonic quantum logic gate, where the quantum state of a solid-state quantum bit (qubit) conditionally controls the state of a photonic qubit. These gates are crucial for development of robust quantum networks, non-destructive quantum measurements, and strong photon-photon interactions. Here we experimentally realize a quantum logic gate between an optical photon and a solid-state qubit. The qubit is composed of a quantum dot (QD) strongly coupled to a nano-cavity, which acts as a coherently controllable qubit system that conditionally flips the polarization of a photon on picosecond timescales, implementing a controlled-NOT (cNOT) gate. Our results represent an important step towards solid-state quantum networks and provide a versatile approach for probing QD-photon interactions on ultra-fast timescales.
The Green rings of pointed tensor categories of finite type
Creators: name: Huang, Hua-Lin
name: Van Oystaeyen, Fred
name: Yang, Yuping
name: Zhang, Yinhuo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: Category Theory (math.CT)
subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 19A22, 18D10, 16G20

description: In this paper, we compute the Clebsch-Gordan formulae and the Green rings of connected pointed tensor categories of finite type.
description: 14 pages
Quantum electrodynamics corrections to energies, transition amplitudes and parity nonconservation in Rb, Cs, Ba$^+$, Tl, Fr and Ra$^+$
Creators: name: Roberts, B. M.
name: Dzuba, V. A.
name: Flambaum, V. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We use previously developed radiative potential method to calculate quantum electrodynamic (QED) corrections to energy levels and electric dipole transition amplitudes for atoms which are used for the study of the parity non-conservation (PNC) in atoms. The QED shift in energies and dipole amplitudes leads to noticeable change in the PNC amplitudes. This study compliments the previously considered QED corrections to the weak matrix elements. We demonstrate that the QED corrections due to the change in energies and dipole matrix elements are comparable in value to those due to change in weak matrix elements.
description: 5 pages, 1 figure
The Environment of HII Galaxies revisited
Creators: name: Koulouridis, E.
name: Plionis, M.
name: Chávez, R.
name: Terlevich, E.
name: Terlevich, R.
name: Bresolin, F.
name: Basilakos, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a study of the close (< 200 kpc) environment of 110 relatively local (z< 0.16) HII galaxies, selected from the Sloan Digital Sky Survey (SDSS; DR7). We use available spectroscopic and photometric redshifts in order to investigate the presence of a close and possibly interacting companion galaxy. Our aim is to compare the physical properties of isolated and interacting HII galaxies and investigate possible systematic effects in their use as cosmological probes. We find that interacting HII galaxies tend to be more compact, less luminous and have a lower velocity dispersion than isolated ones, in agreement with previous studies on smaller samples. However, as we verified, these environmental differences do not affect the cosmologically important L_{Hβ}-σ correlation of the HII galaxies.
description: 5 pages, accepted for publication in A&A
Magnetization switching by ultrashort acoustic pulses
Creators: name: Kovalenko, O.
name: Pezeril, T.
name: Temnov, V. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: It is shown theoretically that a single a few picoseconds long acoustic pulse can reverse magnetization in a magneto-strictive material Terfenol-D. Following giant magneto-elastic changes of free energy density the magnetization vector is kicked out of a local in-plane energy mininum and decays into another minimum. For acoustic pulse duration significantly shorter than magnetization precession period $τ_{ac}$<
Abelian Ashtekar formulation from the ADM action
Creators: name: Contreras, Ernesto
name: Leal, Lorenzo
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the Ashtekar formulation of linear gravity starting from the ADM first order action for the non linear theory, linearizing it, and performing a canonical transformation that coordinatizes the phase space in terms of the already linearized Ashtekar variables. The results obtained in this way are in accordance with those obtained through the standard method, in which, after introducing the Ashtekar variables for the full theory, a linearization around the flat Abelian connection and its conjugate momentum is performed.
description: 13 pages
Characterizing the Influence of Size Scale on Refractory Castable Drying through Macro Thermogravimetry and Numerical Simulations
Creators: name: Moreira, Murilo Henrique
name: Peng, Hong
name: Dal Pont, Stefano
name: Pandolfelli, Victor Carlos
Publisher: name: Zenodo
Year: 2023

description: When designing the drying of a refractory castable, several aspects are required to be accounted for. Most commonly, the heating rate applied, the use of plateaus, or even specific properties of the composition are considered, such as its porosity, permeability or even its mass loss profile during thermogravimetry analysis. All of this effort aims to reduce thelikelihood of facing an explosive spalling accident, due to non-optimal management of the thermal and hygral states during the initial heating of the refractory. More often, however, the characterization of the refractory composition, as well as the laboratory scale tests, are carried out on samples which are orders of magnitude smaller than the real industrial structures that will, in fact, be dried. The current study proposes to consider this usually-neglected aspect of refractory castable drying within a systematic analysis of the size scale effect by considering regular thermogravimetry with 50mm x 50mm cylindric samples and also macro thermogravimetry with 30 cm x 30 cm x 30 cm cubic samples, and numerical simulations of different heating configuration to uncover likely relationships between different scales and the experiments setups and actual drying process. It was found that the percentual mass loss and profiles of the macro TGA and the one from a lab TGA test with a higher heating rate were closer, highlighting a balance between size and temperature increase variation, leading to similar thermal gradients on the smaller and larger samples. A more general scaling law might be uncovered by more in-depth analysis, nonetheless, this study is a starting point to be able to connect small laboratory samples’ findings with real industrial geometries.
The three different phases in the dynamics of chemical reaction networks and their relationship to cancer
Creators: name: Saakian, David B.
name: Schwartz, Laurent
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We investigate the catalytic reactions model used in cell modeling. The reaction kinetic is defined through the energies of different species of molecules following random independent distribution. The related statistical physics model has three phases and these three phases emerged in the dynamics: fast dynamics phase, slow dynamic phase and ultra-slow dynamic phase. The phenomenon we found is a rather general, does not depend on the details of the model. We assume as a hypothesis that the transition between these phases (glassiness degrees) is related to cancer. The imbalance in the rate of processes between key aspects of the cell (gene regulation, protein-protein interaction, metabolical networks) creates a change in the fine tuning between these key aspects, affects the logics of the cell and initiates cancer. It is probable that cancer is a change of phase resulting from increased and deregulated metabolic reactions.
description: 5 pages, 2 figures, EPL, in press
Landau-Zener tunneling in 2D periodic structures in the presence of a gauge field II: Electric breakdown
Creators: name: Maksimov, D. N.
name: Chesnokov, I. Yu.
name: Makarov, D. V.
name: Kolovsky, A. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze dynamics of a quantum particle in a square lattice in the Hall configuration beyond the single-band approximation. For vanishing gauge (magnetic) field this dynamics is defined by the inter-band Landau-Zener tunneling, which is responsible for the phenomenon known as the electric breakdown. We show that in the presence of a gauge field this phenomenon is absent, at least, in its common sense. Instead, the Landau-Zener tunneling leads to appearance of a finite current which flows in the direction orthogonal to the vector of a potential (electric) field.
description: 12 pages, 8 figures
Large-signal stability conditions for semi-quasi-Z-source inverters: switched and averaged models
Creators: name: Haimovich, Hernan
name: Middleton, Richard H.
name: De Nicolo, Lisandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The recently introduced semi-quasi-Z-source in- verter can be interpreted as a DC-DC converter whose input- output voltage gain may take any value between minus infinity and 1 depending on the applied duty cycle. In order to generate a sinusoidal voltage waveform at the output of this converter, a time-varying duty cycle needs to be applied. Application of a time-varying duty cycle that produces large-signal behavior requires careful consideration of stability issues. This paper provides stability results for both the large-signal averaged and the switched models of the semi-quasi-Z-source inverter operating in continuous conduction mode. We show that if the load is linear and purely resistive then the boundedness and ultimate boundedness of the state trajectories is guaranteed provided some reasonable operation conditions are ensured. These conditions amount to keeping the duty cycle away from the extreme values 0 or 1 (averaged and switched models), and limiting the maximum PWM switching period (switched model). The results obtained can be used to give theoretical justification to the inverter operation strategy recently proposed by Cao et al. in [1].
description: Submitted to the IEEE Conf. on Decision and Control, Florence, Italy, 2013
Crossed Bimodules over Rings and Shukla Cohomology
Creators: name: Quang, Nguyen Tien
name: Cuc, Pham Thi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D10, 16E40, 16S70

description: In this paper we present some applications of Ann-category theory to classification of crossed bimodules over rings, classification of ring extensions of the type of a crossed bimodule.
description: 23 pages
Accuracy of topological entanglement entropy on finite cylinders
Creators: name: Jiang, Hong-Chen
name: Singh, Rajiv R. P.
name: Balents, Leon
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological phases are unique states of matter which support non-local excitations which behave as particles with fractional statistics. A universal characterization of gapped topological phases is provided by the topological entanglement entropy (TEE). We study the finite size corrections to the TEE by focusing on systems with $Z_2$ topological ordered state using density-matrix renormalization group (DMRG) and perturbative series expansions. We find that extrapolations of the TEE based on the Renyi entropies with Renyi index $n\geq 2$ suffer from much larger finite size corrections than do extrapolations based on the von Neumann entropy. In particular, when the circumference of the cylinder is about ten times the correlation length, the TEE obtained using von Neumann entropy has an error of order $10^{-3}$, while for Renyi entropies it can even exceed 40%. We discuss the relevance of these findings to previous and future searches for topological ordered phases, including quantum spin liquids.
description: 8 pages, 9 figures
Soliton Coupling Effect: Group-velocity-matching Dispersive Wave Generation and Spectral Tunneling
Creators: name: Guo, Hairun
name: Wang, Shaofei
name: Zeng, Xianglong
name: Bache, Morten
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Concept of spectral soliton coupling is proposed to explain the group-velocity-matching dispersive wave generation and the soliton spectral tunneling effect. Soliton eigen state is found corresponding to a spectral phase profile under which the soliton phase shifts induced by the dispersion and the nonlinearity are instantaneously counterbalanced. A local but non-eigen soliton pulse will shed off energy and form radiations at other wavelengths, during the coupling to the soliton eigen state. Group-velocity-mathing between the local and generated wave is necessary not only as it produces a coupler-like phase profile which supports soliton coupling but also because it physically supports a soliton phase matching condition, which means the generated wave has a soliton state phase matched to the local exciting pulse. Examples in realistic photonic crystal fiber structures are also presented.
On strongly Gauduchon metrics of compact complex manifolds
Creators: name: Xiao, Jian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: In this paper, we study strongly Gauduchon metrics on compact complex manifolds. We study the cohomology cones SG in the de Rham cohomology groups generated by all strongly Gauduchon metrics and its direct images under proper modifications. We also study the moduli of strongly Gauduchon manifolds. We prove an existence result of strongly Gauduchon metrics on compact complex manifold which is fibred over a compact complex curve. In particular, if a compact complex manifold X has a topologically essential fibration over a compact complex curve, and if the generic fibres satisfy ddbar-lemma, then X admits strongly Gauduchon metrics.
title: Public Performance as Personal Resistance: “Standing Man” in Taksim
Creators: name: Derman, Özge
Publisher: name: Politika.io
Year: 2019

description: By standing alone in Taksim Square during the Gezi Park movement, performance artist Erdem Gündüz became an idol of nonviolent resistance with his “Standing Man” performance. This chapter seeks to analyze this performance, drawing on an interview with the artist to examine the role of artistic creativity in public square movements. Artistic expressions result in new social ties through which further spaces of encounter are formed. These expressions also create an experimental new form of social existence. Each expression of artistic creativity relates both to its own subjective action, and to a collective energy strongly embodied in everyday life.
The clustering morphology of freely rising deformable bubbles
Creators: name: Tagawa, Yoshiyuki
name: Roghair, Ivo
name: Prakash, Vivek N.
name: Annaland, Martin van Sint
name: Kuipers, Hans
name: Sun, Chao
name: Lohse, Detlef
Publisher: name: arXiv
Year: 2012
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate the clustering morphology of a swarm of freely rising deformable bubbles. A three-dimensional Voronoï analysis enables us to quantitatively distinguish between two typical clustering configurations: preferential clustering and a grid-like structure. The bubble data is obtained from direct numerical simulations (DNS) using the front-tracking method. It is found that the bubble deformation, represented by the aspect ratio χ, plays a significant role in determining which type of clustering is realized: Nearly spherical bubbles with χ
description: 10 pages, 5 figures
The impact of the Hall effect on high energy density plasma jets
Creators: name: Gourdain, P. -A.
name: Seyler, C. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Using a 1-MA, 100ns-rise-time pulsed power generator, radial foil configurations can produce strongly collimated plasma jets. The resulting jets have electron densities on the order of 10^20 cm^-3, temperatures above 50 eV and plasma velocities on the order of 100 km/s, giving Reynolds numbers of the order of 10^3, magnetic Reynolds and Péclet numbers on the order of 1. While Hall physics does not dominate jet dynamics due to the large particle density and flow inside, it strongly impacts flows in the jet periphery where plasma density is low. As a result, Hall physics affects indirectly the geometrical shape of the jet and its density profile. The comparison between experiments and numerical simulations demonstrates that the Hall term enhances the jet density when the plasma current flows away from the jet compared to the case where the plasma current flows towards it.
title: Und sie spielen doch. Editorial
Creators: name: Gehring, Ulrike
name: Schwingeler, Stephan
Publisher: name: University Library Heidelberg
Year: 2015

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 37, Nr. 2 (2009): kritische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Alignment of the photoelectron spectroscopy beamline at NSRL
Creators: name: Li, Chaoyang
name: Pan, Hanbin
name: Wen, Shen
name: Pan, Congyuan
name: An, Ning
name: Du, Xuewei
name: Zhu, Junfa
name: Wang, Qiuping
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The photoelectron spectroscopy beamline at National Synchrotron Radiation Laboratory (NSRL) is equipped with a spherical grating monochromator with the included angle of 174 deg. Three gratings with line density of 200, 700 and 1200 lines/mm are used to cover the energy region from 60 eV to 1000 eV. After several years operation, the spectral resolution and flux throughput were deteriorated, realignment is necessary to improve the performance. First, the wavelength scanning mechanism, the optical components position and the exit slit guide direction are aligned according to the design value. Second, the gratings are checked by Atomic Force Microscopy (AFM). And then the gas absorption spectrum is measured to optimize the focusing condition of the monochromator. The spectral resolving power is recovered to the designed value of 1000@244eV. The flux at the end station for the 200 lines/mm grating is about 10^10 photons/sec/200mA, which is in accordance with the design. The photon flux for the 700 lines/mm grating is about 5 X 10^8 photons/sec/200mA, which is lower than expected. This poor flux throughput may be caused by carbon contamination on the optical components. The 1200 lines/mm grating has roughness much higher than expected so the diffraction efficiency is too low to detect any signal. A new grating would be ordered. After the alignment, the beamline has significant performance improvements in both the resolving power and the flux throughput for 200 and 700 lines/mm gratings and is provided to users.
description: 6 pages, 6 figures
Data management in the social sciences in Macedonia [Webinar]
Creators: name: Serafimovska, Eleonora
name: Cekikj, Aneta
name: Bliznakovski, Jovan
Publisher: name: Zenodo
Year: 2022
Subjects: Data Management Plan
Data Publication
Data Discovery
MK Dass
CESSDA

description: This webinar aimed to introduce social science researchers to the basic principles of data management, including the creation of a Data management plan, which is an important tool for planning the research project. The webinar consisted of three parts. The first part will introduce researchers to the basic principles of data management including the benefits of adopting Data Management Plans (DMPs). The DMP follows the research project’s life cycle, starting with the initial phases of Planning and Organization, and documentation of research data. This part also included a presentation of best practices for the creation of the appropriate structure of folders and data files, as well as instructions for their naming, documentation and organization. The second part of the webinar focused on the following three phases of the project life cycle: Data processing, Preservation and Protection. Contemporary social science presumes the respect of high level ethical standards during the handling of research data, in accordance with legal rules and best practices in this area. The last part of the webinar was dedicated to the phases of Publication - familiarizing the researchers with the possibilities of data preservation and publishing as well as Data discovery - discussing the ways and means to acquire social science data, including the secondary use of data produced by other researchers.
Three Dimensional Structure of Relativistic Jet Formation
Creators: name: Porth, Oliver
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using high resolution adaptive mesh refinement simulations in 3D, we investigate the formation of relativistic jets from rotating magnetospheres. Here, we focus on the development of non-axisymmetric modes due to internal and external perturbations to the jet. These originate either from injection of perturbations with the flow or from a clumpy external medium. In the helical field geometry of the accelerating jet, the m=1 to m=5 modes are analyzed and found to saturate at a height of \sim 20 inner disk radii. We also discuss a means to control artificial amplification of m = 4 noise in the cartesian simulation geometry. Strong perturbations due to an in-homogeneous ambient medium lead to flow configurations with increased magnetic pitch and thus indicate a self-stabilization of the jet formation mechanism.
description: accepted for publication by MNRAS
title: Bildnachweise
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2015

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 37, Nr. 2 (2009): kritische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Darstellungsraum Welt: gekrümmte Horizonte
Creators: name: Bergermann, Ulrike
Publisher: name: University Library Heidelberg
Year: 2015

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 37, Nr. 3 (2009): kritische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Decomposition of Singular Matrices into Idempotents
Creators: name: Alahmadi, Adel
name: Jain, Surender
name: Leroy, André
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: In this paper we provide concrete constructions of idempotents to represent typical singular matrices over a given ring as a product of idempotents and apply these factorizations for proving our main results. We generalize works due to Laffey (Products of idempotent matrices. Linear Multilinear A. 1983) and Rao (Products of idempotent matrices. Linear Algebra Appl. 2009) to noncommutative setting and fill in the gaps in the original proof of Rao's main theorems. We also consider singular matrices over Bézout domains as to when such a matrix is a product of idempotent matrices.
description: 15 pages
title: Index 2009
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2015

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 37, Nr. 4 (2009): kritische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Kérdezve vagy regisztrálva? Tanácsok és előadások a survey adatfelvételekkel és az adminisztratív adatbázisok használatával kapcsolatban [Workshop]
Creators: name: Hegedus, Peter
name: Tir, Melinda
name: Tóth, Gergely
Publisher: name: Zenodo
Year: 2022
Subjects: survey
methodology
data management
register

description: A workshop célja kettős, egyrészt szeretnénk röviden megismertetni a közgazdászokat a survey illetve attitűd vizsgálatokkal, az adatfelvételek lehetőségeivel valamint a regiszter adatbázisokkal való összekapcsolódás lehetőségeivel. Másik oldalról az eddig surveyt használók is megismerhetnék az adminisztratív adatbázisok felhasználásának irányvonalait. The aim of the workshop "Surveyed or registered? Advice and presentations on survey data collection and the use of administrative databases" was twofold; on the one hand to briefly introduce economists to survey and attitude research, the possibilities of data collection and the possibilities of linking with register databases. On the other hand, it would also give those who have used surveys so far an insight into the trends in the use of administrative databases.
title: Die Landesdenkmalpflege
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2015

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 2 (2015), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4