cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gain a footing for patients with chronic ankle instability: Alterations in foot mobility and biomechanics associated with chronic ankle instability
Creators: name: Fraser, John J.
Publisher: name: F1000 Research Limited
Year: 2019

description: Background & Relevance: People with chronic ankle instability exhibit sensorimotor dysfunction across a broad spectrum of tasks ranging from standing balance to athletic maneuvers. The widespread nature of sensorimotor deficits suggests there may be underlying impairments which compromise the ability to maintain a base of support associated with this condition. There is mounting evidence that individuals with chronic ankle instability exhibit alterations in somatosensation, motor control, and mobility of the foot. Specifically, people with chronic ankle instability have demonstrated decreased plantar cutaneous sensation, atrophy and decreased activation of the intrinsic foot muscles, increased rearfoot internal rotation, forefoot on rearfoot eversion, and first metatarsal plantarflexion. These impairments in foot function may affect local foot and ankle stability, gait and posture, and force attenuation during high energy activities such as running and landing. Examining deficits in foot function through the concept of the foot core with the associated active, passive, and neural subsystems may provide a theoretical basis to direct evaluation and treatment strategies. Interventions including plantar massage and intrinsic foot muscle activation exercises have emerged as evidence-based treatments which target specific deficits within the foot. These interventions have demonstrated the ability to improve postural control and self-reported function. Therefore, foot focused interventions may compliment the current rehabilitation paradigm for treating patients with chronic ankle instability and further enhance patient outcomes. This symposium will present the foot core as a theoretical approach to examine foot function, highlight specific deficits in foot function associated with chronic ankle instability, and introduce clinical intervention techniques to improve foot function.

In this presentation, the pathomechanics of a lateral ankle sprain and subsequent impairment in joint mobility and stability are discussed. These impairments are contextualized in alterations of foot kinematics and kinetics during walking. Clinicians are encouraged to evaluate all the segments of the ankle-foot complex following lateral ankle sprain and in chronic ankle instability.
title: FEATURE EXTRACTION ALGORITHMS APPLIED TO TURBULENT CHANNEL FLOW DATABASES: THE EFFECT OF AGGLOMERATION STRATEGIES
Creators: name: LI, B.
name: GARICANO-MENA, J.
name: FERRER, E.
name: VALERO, E.
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: TURBULENCE
CFD

description: In this contribution, we consider strategies that allow to perform a Dynamic Mode Decomposition analysis of data at a reduced computational and memory cost. We depart from the classical DMD21 and NonUniform DMD.10 Additionally, we present a novel DMD based strategy which can also process datasets non-uniformly sampled. The three DMD based methods are compared with respect to their numerical performance and their capabilities of handling shortened possibly non-uniformly sampled databases and to accommodate spatial agglomeration strategies, on three cases: a synthetic system, a ReD = 60 flow around 2D cylinder, and a Re 200 turbulent channel flow.
The Roughening Transition of the 3D Ising Interface: A Monte Carlo Study
Creators: name: Hasenbusch, M.
name: Meyer, S.
name: Pütz, M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the roughening transition of an interface in an Ising system on a 3D simple cubic lattice using a finite size scaling method. The particular method has recently been proposed and successfully tested for various solid on solid models. The basic idea is the matching of the renormalization-group-flow of the interface with that of the exactly solvable body centered cubic solid on solid model. We unambiguously confirm the Kosterlitz-Thouless nature of the roughening transition of the Ising interface. Our result for the inverse transition temperature $K_R=0.40754(5)$ is almost by two orders of magnitude more accurate than the estimate of Mon, Landau and Stauffer.
description: 16 pages (latex) + 6 figures (Postscript) ,uuencoded
Electrostatic deflector studies using small prototypes
Creators: name: Grigoryev, K.
name: Rathmann, F.
name: Stahl, A.
name: Ströher, H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The search for electric dipole moments of particles in storage rings requires the development of dedicated deflector elements with electrostatic fields. In these rings, electric deflectors shall be used as bending elements for the charged particles. This paper presents studies on scaled-down prototypes, a few cm in size, to investigate different deflector materials at similar electric fields but much smaller distances than real size prototypes.
description: 5 pages, 8 figures
Additional file 2 of Critical incidents in anorexia nervosa: perspectives of those with a lived experience
Creators: name: Leppanen, Jenni
name: Tosunlar, Lara
name: Blackburn, Rachael
name: Williams, Steven
name: Tchanturia, Kate
name: Sedgewick, Felicity
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: Mental Health

description: Additional file 2.
Sedimentary carbon data for all cores from Mangrove dynamics and blue carbon sequestration
Creators: name: Kerrylee Rogers
name: Saintilan, Neil
name: Debashish Mazumder
name: Kelleway, Jeffrey J.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology

description: Sedimentary carbon dataset for mangrove cores (x2) and saltmarsh cores (x2) including bulk density, %C, C (g/cm3) and δ13C.
Effects of temperature upon the collapse of a Bose-Einstein condensate in a gas with attractive interactions
Creators: name: Davis, M. J.
name: Hutchinson, D. A. W.
name: Zaremba, E.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We present a study of the effects of temperature upon the excitation frequencies of a Bose-Einstein condensate formed within a dilute gas with a weak attractive effective interaction between the atoms. We use the self-consistent Hartree-Fock Bogoliubov treatment within the Popov approximation and compare our results to previous zero temperature and Hartree-Fock calculations The metastability of the condensate is monitored by means of the $l=0$ excitation frequency. As the number of atoms in the condensate is increased, with $T$ held constant, this frequency goes to zero, signalling a phase transition to a dense collapsed state. The critical number for collapse is found to decrease as a function of temperature, the rate of decrease being greater than that obtained in previous Hartree-Fock calculations.
description: 4 pages LaTeX, 3 eps figures. To appear as a letter in J. Phys. B
title: Contactless suspension for cryogenic applications
Creators: name: NAVARRO ZAFRA, J.
name: VALIENTE-BLANCO, I.
name: SANCHEZ-GARCIA-CASARRUBIOS, J.
name: RODRIGUEZ-CELIS, F.
name: RUIZ-LUCINI, R.
name: PEREZ-DEL-ALAMO, J.L.
name: CRISTACHE, C.
name: ESNOZ-LARRAYA, J.
name: PEREZ-DIAZ, J.L.
name: STEFANESCU, Alexander
name: ZALTRON, Paolo
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: AEROSPACE SYSTEMS
MATERIALS

description: Traditional cryogenic vibration isolators require elements in contact to isolate the suspended mass. Potential creep, plasticity or permanent elongation issues limit the number of times that these systems can be rebooted thermally. In addition, conducted heat coming from ground compromises the performance of suspended optic and electronic devices. To provide passive vibration isolation and to eliminate heat conducted between the external interface and the suspended mass, a Superconducting Magnetic Suspension (SMS) has been developed by a consortium led by MAG SOAR. The lack of contact makes conduction of heat to be zero. An additional advantage of the SMS is that the energy is dissipated on ground and consequently does not influence the suspended mass. Individual test results have shown that the technology is a promising candidate to future cryogenic space instruments [1]. Based on the lessons learn during the component design, four components have been designed and manufactured at MAG SOAR facilities to support a 12 kg Focal Plane Array (FPA) in cryogenic space-based instruments. An example of a mission utilizing a cryogenic FPA would be the planned X-ray observatory ATHENA. The vibration isolator and thermal disconnect can be scale up and re-design depending of the desired suspended mass.
Cyclic Szekeres Universes
Creators: name: Barrow, John D.
name: Paliathanasis, Andronikos
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the Szekeres universe with an inhomogeneous dust fluid and a homogeneous and isotropic ghost matter source with equation of state $p_{g}=\left( γ-1\right) ρ_{g},$ where $γ$ is a constant. The field equations determine two families of spacetimes which describe homogeneous Kantowski-Sachs universes and inhomogeneous Friedmann universe. The ghost field Einstein permits static and cyclic solutions to exist. The stability of the Einstein static and cyclic solutions are studied with a critical point analysis.
description: 10 pages, 7 figures, accepted for publication in EPJC
Spin Physics with the PHENIX Detector System
Creators: name: Saito, N.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The PHENIX experiment at RHIC has extended its scope to cover spin physics using polarized proton beams. The major goals of the spin physics at RHIC are elucidation of the spin structure of the nucleon and precision tests of the symmetries. Sensitivities of the spin physics measurements with the PHENIX detector system are reviewed.
description: 4 pages, 1 figures; For the complete list of the authors, please refer to hep-ex/9804004
Mean surface elevation change and vertical accretion values from Mangrove dynamics and blue carbon sequestration
Creators: name: Kerrylee Rogers
name: Saintilan, Neil
name: Debashish Mazumder
name: Kelleway, Jeffrey J.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology

description: Mean surface elevation change (and errors) for mangrove, mixed and saltmarsh SET-MH at Homebush Bay. Values have been adjusted to m (AHD).
title: Investigation of RANS turbulence models for cryogenic rocket combustion chambers
Creators: name: FECHTER, Stefan
name: HORCHLER, Tim
name: KARL, Sebastian
name: HANNEMANN, Klaus
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: CFD
COMBUSTION
CRYOGENIC PROPULSION
COMBUSTION CHAMBERS
REACTIVE FLOW

description: The accurate numerical simulation of high-pressure rocket combustion chambers is a key element for the design of future space transportation vehicles. The main challenges include the consistent approximation of thermodynamic effects within a broad temperature range. Another open question is which are the additional physical processes that have to be modeled for Reynolds Averaged Navier-Stokes (RANS) based approaches. To this open question we contribute with a detailed study of RANS turbulence models and their influence onto the flame shape for a simplified academic test case and a subscale rocket combustion chamber at supercritical pressure.
Detailed materials and methods from Mangrove dynamics and blue carbon sequestration
Creators: name: Kerrylee Rogers
name: Saintilan, Neil
name: Debashish Mazumder
name: Kelleway, Jeffrey J.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology

description: Detailed description of each analytical technique used in the 18 year study
Chiral two-loop pion-pion scattering parameters from crossing-symmetric constraints
Creators: name: Wanders, G.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Constraints on the parameters in the one- and two-loop pion-pion scattering amplitudes of standard chiral perturbation theory are obtained from explicitly crossing-symmetric sum rules. These constraints are based on a matching of the chiral amplitudes and the physical amplitudes at the symmetry point of the Mandelstam plane. The integrals over absorptive parts appearing in the sum rules are decomposed into crossing-symmetric low- and high-energy components and the chiral parameters are finally related to high-energy absorptive parts. A first application uses a simple model of these absorptive parts. The sensitivity of the results to the choice of the energy separating high and low energies is examined with care. Weak dependence on this energy is obtained as long as it stays below ~560 MeV. Reliable predictions are obtained for three two-loop parameters.
description: 23 pages, 4 figures in .eps files, Latex (RevTex), our version of RevTex runs under Latex2.09, submitted to Phys. Rev. D,minor typographical corrections including the number at the end of the abstract, two sentences added at the end of Section 5 in answer to a referee's remark
Additional file 2 of Applicable safety analysis and biomechanical study of iliosacral triangular osteosynthesis
Creators: name: Zheng, Jianxiong
name: Xiang, Jie
name: Feng, Xiaoreng
name: Liu, Fei
name: Chen, Keyu
name: Chen, Bin
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Physiology
subject: FOS: Biological sciences
subject: Mathematical Sciences not elsewhere classified

description: Additional file 2.
Revisiting low-frequency susceptibility data in superconducting materials
Creators: name: Szeftel, Jacob
name: Ghantous, Michel Abou
name: Sandeau, Nicolas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Old susceptibility data, measured in superconducting materials at low-frequency, are shown to be accounted for consistently within the framework of a recently published\cite{sz1} analysis of the skin effect. Their main merit is to emphasize the significance of the skin-depth measurements, performed \textit{just beneath} the critical temperature $T_c$, in order to disprove an assumption, which thwarted any understanding of the skin-depth data, achieved so far by conventional high-frequency methods, so that those data might, from now on, give access to the temperature dependence of the concentration of superconducting electrons.
description: 7 pages, 4 figures
Scaling and Multi-scaling in Financial Markets
Creators: name: Iori, Giulia
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: This paper reviews some of the phenomenological models which have been introduced to incorporate the scaling properties of financial data. It also illustrates a microscopic model, based on heterogeneous interacting agents, which provides a possible explanation for the complex dynamics of markets' returns. Scaling and multi-scaling analysis performed on the simulated data is in good quantitative agreement with the empirical results.
description: Paper presented at the Disordered and Complex Systems s conference, King's College London, July 2000
Tensile Properties and Dislocation Structures of Yttria-Strengthened Inconel 718 Fabricated via Laser Powder Bed Fusion
Creators: name: Dai, Shengbin
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 401401
subject: Additive manufacturing
classificationCode: 401607
subject: Metals and alloy materials

description: Thesis entitled "Tensile Properties and Dislocation Structures of Yttria-Strengthened Inconel 718 fabricated via Laser Powder Bed Fusion" explores the integration of yttria nanoparticles into Inconel 718 to enhance its mechanical properties at various temperatures. Utilizing advanced laser powder bed fusion techniques, this study analyses the material's response under tensile stress at room temperature, 650 °C, and 800 °C. The research highlights significant improvements in strength and durability, attributed to yttria nanoparticle-retarded dislocation cellular patterns. These findings not only advance the field of aerospace materials but also offer insights into optimizing metal additive manufacturing processes.
The quenched SU(2) scalar-gluon vertex in minimal Landau gauge
Creators: name: Maas, Axel
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The question of whether confining effects are visible in correlation functions is a long-standing one. Complementing investigations on the propagators of fundamental and adjoint scalar matter particles here the quenched scalar-gluon vertex is investigated. For this purpose a multitude of lattice setups in two, three, and four dimensions is analyzed in quenched SU(2) lattice gauge theory. Though both cases are quantitatively different, neither a qualitative difference nor any singularities are observed.
description: 26 pages, 12 figures, 1 table; v2: Some technical details and comments added
Few-photon Fock-state wave packet interacting with a cavity-atom system in a waveguide: Exact quantum state dynamics
Creators: name: Stolyarov, Eugene V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the paper, we employ a wavefunction approach to investigate the evolution of a two-photon wave packet propagating in a one-dimensional waveguide coupled to the Jaynes-Cummings (JC) system. We derive and solve, both analytically and numerically, a set of equations of motion governing the quantum state of the system. That allows us to provide real-time analysis of the evolution of the wave packet two-photon joint spectrum (2PJS) and the excitation dynamics of the JC system in the course of its interaction with the two-photon pulse. We demonstrate that the 2PJS and the spectrum of the wave packet scattered from the JC system experience transformation for nonzero atom-cavity couplings. Moreover, using Schmidt decomposition, we show that the scattered photons feature frequency entanglement contrary to the incident ones which are not entangled.
description: 14 pages, 8 figures; submitted to Phys. Rev. A
Electronic Spectra and Their Relation to the (pi,pi) Collective Mode in High-Tc Superconductors
Creators: name: Campuzano, J. C.
name: Ding, H.
name: Norman, M. R.
name: Fretwell, H. M.
name: Randeria, M.
name: Kaminski, A.
name: Mesot, J.
name: Takeuchi, T.
name: Sato, T.
name: Yokoya, T.
name: Takahashi, T.
name: Mochiku, T.
name: Kadowaki, K.
name: Guptasarma, P.
name: Hinks, D. G.
name: Konstantinovic, Z.
name: Li, Z. Z.
name: Raffy, H.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Photoemission spectra of Bi2Sr2CaCu2O8 reveal that the high energy feature near (pi,0), the "hump", scales with the superconducting gap and persists above Tc in the pseudogap phase. As the doping decreases, the dispersion of the hump increasingly reflects the wavevector (pi,pi) characteristic of the undoped insulator, despite the presence of a large Fermi surface. This can be understood from the interaction of the electrons with a collective mode, supported by our observation that the doping dependence of the resonance observed by neutron scattering is the same as that inferred from our data.
description: 4 pages (revtex), 5 figures (eps)
Otoliths in situ in the stem teleost Cavenderichthys talbragarensis (Woodward, 1895), otoliths in coprolites, and isolated otoliths from the Upper Jurassic of Talbragar, New South Wales, Australia
Creators: name: Schwarzhans, Werner W.
name: Murphy, Timothy D.
name: Frese, Michael
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Cavenderichthys talbragarensis (Woodward, 1895) is a common signature freshwater stem teleost in the Upper Jurassic of Australia. Our discovery of numerous otoliths in the Talbragar Fish Bed establishes Cavenderichthys as only the second known Jurassic teleost and the third known stem teleost with otoliths in situ and provides an important calibration point for the interpretation of isolated Mesozoic otoliths. It corroborates the low degree of morphological diversification of stem teleost otoliths. The abundance of otoliths (isolated, in coprolites and in situ) allows the mapping of ontogenetic effects and of intraspecific variability for the first time in attributable stem teleost otoliths. Here, we describe 284 otoliths, mostly from Cavenderichthys. Otoliths in situ in Cavenderichthys document the presence of sagitta, lapillus, and asteriscus. Three other, much rarer otolith types were also found that have a teleost otolith pattern more primitive than that of Leptolepidiformes; the origin of these is unknown, but it is likely that they stem from pholidophoriform fishes of the family Archaeomenidae. If confirmed, this otolith pattern would provide a further highly diagnostic and synapomorphic character to define teleosts at the level of the Leptolepidiformes and above. Different mineral replacement processes in fossils from the Talbragar Fish Bed aided us in finding many otoliths, particularly otoliths in situ. Given their abundance and distinct preservation, it is surprising that otoliths in the Talbragar Fish Bed have not been recognized before.
Effective Potential for Scalar Field in Three Dimensions: Ising Model in the Ferromagnetic Phase
Creators: name: Tsypin, M. M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the effective potential $V_{\rm eff}(ϕ)$ for one-component real scalar field $ϕ$ in three Euclidean dimensions (3D) in the case of spontaneously broken symmetry, from the Monte Carlo simulation of the 3D Ising model in external field at temperatures approaching the phase transition from below. We study probability distributions of the order parameter on the lattices from $30^3$ to $74^3$, at $L/ξ\approx 10$. We find that, in close analogy with the symmetric case, $ϕ^6$ plays an important role: $V_{\rm eff}(ϕ)$ is very well approximated by the sum of $ϕ^2$, $ϕ^4$ and $ϕ^6$ terms. An unexpected feature is the negative sign of the $ϕ^4$ term. As close to the continuum limit as we can get ($ξ\approx 7.2$), we obtain $$ {\cal L}_{\rm eff} \approx {1 \over 2} \partial_μϕ\partial_μϕ+ 1.7 (ϕ^2 - η^2)^2 (ϕ^2 + η^2). $$ We also compute several universal coupling constants and ratios, including the combination of critical amplitudes $C^- (f_1^-)^{-3} B^{-2}$.
description: 13 pages, 5 Postscript figures, uses epsf.sty
Elastic gauge fields and zero-field 3D quantum Hall effect in hyperhoneycomb lattices
Creators: name: Kim, Sang Wook
name: Uchoa, Bruno
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Dirac materials respond to lattice deformations as if the electrons were coupled to gauge fields. We derive the elastic gauge fields in the hyperhoneycomb lattice, a three dimensional (3D) structure with trigonally connected sites. In its semimetallic form, this lattice is a nodal-line semimetal with a closed loop of Dirac nodes. Using strain engineering, we find a whole family of strain deformations that create uniform nearly flat Landau levels in 3D. We propose that those Landau levels can be created and tuned in metamaterials with the application of a simple uniaxial temperature gradient. In the 3D quantum anomalous Hall phase, which is topological, we show that the components of the elastic Hall viscosity tensor are multiples of $η_{H}=β^{2}\sqrt{3}/\left(8πa^{3}\right)$, where $β$ is an elastic parameter and $a$ is the lattice constant.
Slope of the Isgur-Wise function in the heavy mass limit of quark models à la Bakamjian-Thomas
Creators: name: Morénas, V.
name: Yaouanc, A. Le
name: Oliver, L.
name: Pène, O.
name: Raynal, J. -C.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The slope of the Isgur-Wise function for ground state mesons is evaluated for the heavy mass limit of quark models à la Bakamjian-Thomas, which has been previously discussed by us in general terms. A full calculation in various spectroscopic models with relativistic kinetic energy gives a rather stable result $ρ^2 \approx 1$, much lower than previous estimates. Attention is paid to a careful comparison of this result with the ones of QCD fundamental methods (lattice QCD, QCD sum rules) and with experimental data.
description: 15 pages, Latex, AMS-LaTeX
Charge carrier dynamics and interfaces in perovskite solar cells
Creators: name: Rueda Delgado, Diana Paola
Publisher: name: Karlsruhe
Year: 2019
Subjects: perovskite
photovoltaic
C60
interface passivation
charge carrier dynamics

description: Organometallhalogenid-Perowskite sind hybride Halbleiter, die in jüngster Zeit aufgrund ihrer hervorragenden Halbleitereingeschaften und attraktiven optischen Eigenschaften die Aufmerksamkeit der Wissenschaft auf sich gezogen haben. Seitdem wurde die exzellente Eignung dieser Materialklasse für verschiedenste opto-elektrische Anwendungen wie z.B. Solarzellen, LEDs und Lasern unter Beweis gestellt. Die physikalischen Mechanismen, die die Grundlage für diese einzigartigen, qualitativ Hochwertigen Eigenschaften bilden, sind jedoch noch weitgehend unbekannt. Dieses Manuskript stellt eine Studie über die optischen Eigenschaften von Perowskitfilmen für den Einsatz in Dünnschichtsolarzellen dar, die mit dem Spin-Coating-Verfahren hergestellt wurden. Aufgrund des geringen Dicken der Perowskitschichten ist deren Morphologie empfindlich gegenüber kleinen Variationen der Fertigungsparameter. Deshalb muss der Herstellungsprozess durch Feinjustierung dieser Parameter optimiert werden, um hocheffiziente Solarzellen herzustellen. Eine der größten Herausforderungen für die Kommerzialisierung der Perowskitphotovoltaik ist neben der Herstellung durch die mangelnde Stabilität des Wirkungsgerades während des Betriebs gegeben. Daher werden in der vorliegenden Arbeit zusätzlich die Gründe für diese Stabilitätsverluste untersucht. Zu diesem Zweck werden zusätzliche Nanoschichten zwischen der Perowskit- und der Elektronenextraktionsschicht appliziert, die nicht nur eine Reduzierung der Hysterese in der Strom-Spannungskurve bewirken, sondern die Leistung der Solarzelle unter Sonneneinstrahlung stabilisieren. Der Vergleich der Stabilität von Solarzellen mit und ohne zusätzlichen Zwischenschichten ermöglicht Rückschlüsse auf die Ursache der Degradationsmechanismen. Ein Hauptresultat dieser Stabilitäts- bzw. Degradationsstudie ist die Tatsache, dass ein Großteil des beobachteten Effizienzverlustes nicht durch die Perowskitdegradation innerhalb des Filmes, sondern vielmehr durch die Instabilität der Grenzflächen des Perowskits mit den Extraktionsschichten zustande kommt. Die Grenzflächendegradation erzeugt eine Barriere für den Ladungstransport durch die Erhöhung der lokalen „Trap-Dichte“. Basierend auf dieser Erkenntnis eröffnet die sorgfältige Modifikation der Grenzflächen innerhalb der Solarzelle vielfältige Möglichkeiten, um eine stabile Betriebsleistung der Solarzelle über längere Zeiten durch Vermeidung bzw. Verzögerung der Degradation zu erzielen.
title: How to correct the Breguet range equation taking into account the fuel flow rate of the aircraft ?
Creators: name: BOVET, Laurent
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: FLIGHT CONTROL
AIRCRAFT PROPULSION
NAVIGATION

description: This paper deals with the computation of the trimmed conditions in cruise as well as the prediction of the range taking into account the fuel flow rate, i.e. the weight decrease of the aircraft. A special emphasis was put on analytical computation, which leads to very simple expressions of correcting factors to apply on current fomulas used to compute the equilibrated conditions and range of the aircraft. These analytical expressions have all been validated by a numerical simulation solving the flight dynamics equations with the introduction of a fuel flow rate proportional to the thrust. It has been demonstrated that the Breguet range formula used to estimate the performance in cruise at constant airspeed and angle of attack is optimistic and should be reduced by a factor ke only depending on the equilibrated airspeed and Thrust Specific Fuel Consumption. This correction represents approx 0.6% of the range in the case of an airliner in cruise at a Mach number equal to 0.82.
Ultra-high energy cosmic rays from shocks in the lobes of powerful radio galaxies
Creators: name: Matthews, James H.
name: Bell, Anthony R.
name: Blundell, Katherine M.
name: Araudo, Anabella T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The origin of ultra-high energy cosmic rays (UHECRs) has been an open question for decades. Here, we use a combination of hydrodynamic simulations and general physical arguments to demonstrate that UHECRs can in principle be produced by diffusive shock acceleration (DSA) in shocks in the backflowing material of radio galaxy lobes. These shocks occur after the jet material has passed through the relativistic termination shock. Recently, several authors have demonstrated that highly relativistic shocks are not effective in accelerating UHECRs. The shocks in our proposed model have a range of non-relativistic or mildly relativistic shock velocities more conducive to UHECR acceleration, with shock sizes in the range 1-10kpc. Approximately 10% of the jet's energy flux is focused through a shock in the backflow of $M>3$. Although the shock velocities can be low enough that acceleration to high energy via DSA is still efficient, they are also high enough for the Hillas energy to approach $10^{19-20}$eV, particularly for heavier CR composition and in cases where fluid elements pass through multiple shocks. We discuss some of the more general considerations for acceleration of particles to ultra-high energy with reference to giant-lobed radio galaxies such as Centaurus A and Fornax A, a class of sources which may be responsible for the observed anisotropies from UHECR observatories.
description: Accepted to MNRAS. 20 pages, 15 figures, 1 table. Movies in supplementary material can be viewed and downloaded at http://jhmatthews.github.io/uhecr-movies
title: Standardization of Thermal Interface for Future Space Missions
Creators: name: SANCHEZ-GARCIA-CASARRUBIOS, J.
name: NAVARRO-ZAFRA, J.
name: RUIZ-LUCINI, R.
name: ESNOZ-LARRAYA, J.
name: VALIENTE-BLANCO, I.
name: PEREZ-DIAZ, J.L
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: AEROSPACE SYSTEMS
HEAT TRANSFER
ROBOTICS
FLUID MECHANICS

description: This paper presents the thermal IF of SIROM project that has been developed by MAG SOAR. SIROM project, funded by the European Unions Horizon 2020 research and innovation programme, aims to advance on the key-points of Space Robotics Technologies. This multi-functional standard interface provides mechanical, power, data and thermal connectivity on a limited space (diameter 120mm and height of 30mm). This high-power transmission is achieved using a Close-Loop Fluid Heat Exchange Module (CL-FHEM). Test were divided at component level in order to characterize the coupling force at different temperature range (-40C up to 70C) and at integrated systems level where different values such as heat transfer, pressure drop and leakage were obtained. Due to the industry interest of the technology, an optimized version of the proposed thermal IF has been founded by Horizon 2020 in the context of MOSAR project [1].
Ideal glass transitions for hard ellipsoids
Creators: name: Letz, M.
name: Schilling, R.
name: Latz, A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: For hard ellipsoids of revolution we calculate the phase diagram for the idealized glass transition. Our equations cover the glass physics in the full phase space, for all packing fractions and all aspect ratios X$_0$. With increasing aspect ratio we find the idealized glass transition to become primarily be driven by orientational degrees of freedom. For needle or plate like systems the transition is strongly influenced by a precursor of a nematic instability. We obtain three types of glass transition lines. The first one ($ϕ_c^{(B)}$) corresponds to the conventional glass transition for spherical particles which is driven by the cage effect. At the second one ($ϕ_c^{(B')}$) which occurs for rather non-spherical particles a glass phase is formed which consists of domains. Within each domain there is a nematic order where the center of mass motion is quasi--ergodic, whereas the inter--domain orientations build an orientational glass. The third glass transition line ($ϕ_c^{(A)}$) occurs for nearly spherical ellipsoids where the orientational degrees of freedom with odd parity, e.g. 180$^o$ flips, freeze independently from the positions.
description: 5 pages and 7 figures. Revised version as accepted for publication in PRE. Added discussion and figures to clarify the orientatinal glass phase derived in the paper
Tuber qujingense S. P. Wan 2021, sp. nov.
Creators: name: Wan, Shanping
name: Liu, Jianwei
name: Huang, Lanlan
name: Qin, Xiaomin
name: Liu, Wei
name: Yu, Fuqiang
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Pezizomycetes
Pezizales
Tuberaceae
Tuber
Tuber qujingense

description: Tuber qujingense S. P. Wan, sp. nov. (Fig. 3)
MycoBank: MB 839733
 Typification: CHINA. Yunnan Province, Huize County (18.103°E, 23.26°N), in humic soil under a pure Pinus armandii forest, at about 2400 m, 12 August 2016, wsp721, HKAS 95823 (GenBank Acc. No.: ITS = KX904885, LSU = KY 013659).
 Diagnosis: Tuber qujingense differs from related species by its greyish white ascomata, brown snowflake-shaped gleba, prosenchymatous peridium, fusiform ascospores and 1–4 spored asci.
Etymology: Refers to the location of the type collection.
 Description: Ascoma 2.5 cm in diam, subglobose or irregular, greyish white when fresh, becoming brown when dried. Peridium 200–500 µm thick, smooth to pubescent, one layer, prosenchymatous, composed of big, subglobose to subangular cells, (1–) 2–33 (–34.5) × (1–) 1.5–22 (–33) µm, light earthy yellow. Gleba solid, brownish purple when mature, marbled with white veins, composed of hyaline, interwoven, thin-walled hyphae, 1.5–6 µm, and cylindrical, inflated hyphae 2.8–50 × 2.8–43 µm. Dermatocystidia or setae, straight or bent, obtuse or apiculate at the tip, up to 110 µm long, 6.5 µm in diam, septate, hyaline to whitish. Asci (40–) 51–80 × (30–) 31–60 µm, globose to subglobose, pyriform, ellipsoid or irregular, hyaline, sessile or with a short stalk, thin-walled 1–2 µm thick, 1–4 spored. Ascospores, fusiform, ellipsoid, sometimes broadly ellipsoid, subglobose, hyaline when young, becoming brown at maturity; excluding the alveolate-reticulate ornamentation, in 1-spored asci (35–)37–48(–50) × (23–) 25–30(–32) µm (Q = 1.45–1.65), in 2-spored (22–) 28–40(–41) × (14–) 18-27 µm (Q = 1.41–1.7), in 3-spored (20–)3 8–18(–20) × 15–19(– 24) µm (Q = 1.23–1.75), and in 4-spored (17–) 20–34(–36) × 14–21(–22) µm (Q = 1.14–1.72); reticulum with 3–10 meshes along the spore length and 3–8 across. The alveolar walls up to 4.5–11 µm tall.
 Distribution and habitat: Hypogeous, in soil under pure stand of P. armandii in Yunnan Province, China. Known only from China.
description: Published as part of Wan, Shanping, Liu, Jianwei, Huang, Lanlan, Qin, Xiaomin, Liu, Wei & Yu, Fuqiang, 2021, Tuber qujingense and T. songlu, two new species from Yunnan, China, pp. 248-256 in Phytotaxa 527 (4) on pages 251-252, DOI: 10.11646/phytotaxa.527.4.2, http://zenodo.org/record/5766179
Additional file 3 of Applicable safety analysis and biomechanical study of iliosacral triangular osteosynthesis
Creators: name: Zheng, Jianxiong
name: Xiang, Jie
name: Feng, Xiaoreng
name: Liu, Fei
name: Chen, Keyu
name: Chen, Bin
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Physiology
subject: FOS: Biological sciences
subject: Mathematical Sciences not elsewhere classified

description: Additional file 3.
Synthesis of novel 1,4 naphthoquinone-based molecules by an Ugi-type four-component reaction
Creators: name: Waléria F. Rabêlo
name: Radell Echemendía
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: In an attempt to further exploit multicomponent reactions in the field of 1,4 naphthoquinone-based compounds, we describe an Ugi-type multicomponent approach for the synthesis of novel 3-substituted 1,4 naphthoquinone molecules. The process relies on the execution of an enol-Ugi reaction between an enol-3-nitro-1,4 naphthoquinone with different secondary diamines and isocyanides. The novel methodology showed great chemical efficiency and versatility.
The Kosterlitz-Thouless Universality Class
Creators: name: Kenna, R.
name: Irving, A. C.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We examine the Kosterlitz-Thouless universality class and show that essential scaling at this type of phase transition is not self-consistent unless multiplicative logarithmic corrections are included. In the case of specific heat these logarithmic corrections are identified analytically. To identify those corresponding to the susceptibility we set up a numerical method involving the finite-size scaling of Lee-Yang zeroes. We also study the density of zeroes and introduce a new concept called index scaling. We apply the method to the XY-model and the closely related step model in two dimensions. The critical parameters (including logarithmic corrections) of the step model are compatable with those of the XY-model indicating that both models belong to the same universality class. This result then raises questions over how a vortex binding scenario can be the driving mechanism for the phase transition. Furthermore, the logarithmic corrections identified numerically by our methods of fitting are not in agreement with the renormalization group predictions of Kosterlitz and Thouless.
description: 36 pages (latex), plus 10 figures (postscript). This version to appear in Nuclear Physics B
Investigation of Common Mode Voltage in 5-level Diode Clamped MLI using carrier based SPWM Techniques
Creators: name: Esa, Mohd
name: J.E. Muralidhar
Publisher: name: figshare
Year: 2019
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The main aim of this paper is to investigate the Common Mode Voltage (CMV) and Total Harmonic Distortion (THD) infive level Diode Clamped Inverter using Carrier based SPWM techniques. The common mode voltage exists between neutral point ofstar connected load and system ground. Various Carrier based SPWM techniques used to analyze CMV and THD in this paper arePhase Disposition (PD) strategy, Phase Opposition Disposition (POD) strategy, Alternative Phase Opposition Disposition (APOD)strategy, Carrier Overlap Phase Disposition (COPD) Strategy, Carrier Overlap Phase Opposition Disposition (COPOD) strategy andCarrier Overlap Alternative Phase Opposition Disposition (COAPOD) strategy.RL load is connected to inverter circuit for analysispurpose and Simulation is performed using MATLAB/Simulink Software.
Numerical and Experimental Investigation of Wind Load on Photovoltaic Panel Assemblies
Creators: name: Oľga Hubová
name: Franek, Michal
name: Macák, Marek
Publisher: name: Zenodo
Year: 2021
Subjects: Photovoltaic panel
wind tunnel
computational fluid dynamics
net pressure coefficient
wind load

description: The chapter presents the aerodynamic study of solar panel assemblies and the determination of wind load. In the first part, the task is solved by computer simulation of the wind flow around the proposed rectangular assembly in the scale of 1:1 using the FLUENT ANSYS program and realization of experimental measurements in the wind tunnel with a boundary layer (BLWT) in Bratislava is presented subsequently. The aim of the solution was to determine the maximum pressure and suction wind load on top and bottom surfaces of panels. The resulting net pressure coefficient represents the maximum local pressure in each panel row as maximum values from all wind directions. The experimentally obtained net pressure coefficient values were compared with computer simulation and the procedures mentioned in standard STN EN 1991-1-4. It can be seen that the inner panels are loaded considerably less than the standard defines. The panels placed on the side of the assembly or on the edge of the aisle are loaded significantly more than the standard defines. Frontal panels are also less wind stressed than in the standard defines.
Time of avalanche mixing of granular materials in a half filled rotated drum
Creators: name: Dorogovtsev, S. N.
name: Mendes, J. F. F.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The avalanche mixing of granular solids in a slowly rotated 2D upright drum is studied. We demonstrate that the account of the difference $δ$ between the angle of marginal stability and the angle of repose of the granular material leads to a restricted value of the mixing time $τ$ for a half filled drum. The process of mixing is described by a linear discrete difference equation. We show that the mixing looks like linear diffusion of fractions with the diffusion coefficient vanishing when $δ$ is an integer part of $π$. Introduction of fluctuations of $δ$ supresses the singularities of $τ(δ)$ and smoothes the dependence $τ(δ)$.
description: 4 pages revtex (twocolumn, psfig), 2 figures
title: Ideal Geometries and Potential Benefit of Variable Pitot Inlets for Subsonic and Supersonic Business Aviation
Creators: name: KAZULA, Stefan
name: WOLLNER, Mark
name: GRASSELT, David
name: HOSCHLER, Klaus
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: AIRCRAFT PROPULSION
SUPERSONIC
AERODYNAMICS
TURBOMACHINES
DESIGN

description: The challenge of determining ideal inlet geometries for variable pitot aero engine inlets in transonic and supersonic civil aviation is presented. The trade-off in inlet design and the geometric inlet parameters are introduced. By means of a parametric design study, feasible inlet geometries for variable inlets are identified and the potential aerodynamic benefit of using variable pitot inlets for flight speeds from Mach 0.95, 1.3 up to 1.6 is examined. After considering the additional weight of variable inlets, for instance due to required actuators, a remaining range benefit of over 20% at a flight speed of Mach 1.6 is determined.
Frustrated Magnetism from Local Moments in FeSe
Creators: name: Ruiz, Harrison
name: Wang, Yao
name: Moritz, Brian
name: Baum, Andreas
name: Hackl, Rudi
name: Devereaux, Thomas P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate properties of a spin-1 Heisenberg model with extended and biquadratic interactions, which captures crucial aspects of the low energy physics in FeSe. While we show that the model exhibits a rich phase diagram with four different magnetic ordering tendencies, we identify a parameter regime with strong competition between Nèel, staggered dimer, and stripe-like magnetic fluctuations, accounting for the physical properties of FeSe. Through the comparison of numerically evaluated spin and Raman response with experiments, we find evidence for enhanced magnetic frustration between Nèel and co-linear stripe ordering tendencies, which increases with increasing temperature. The explanation of these spectral behaviors with this frustrated spin model supports the idea of local spin interactions in FeSe.
description: 8 pages, 11 figures