cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
0-$π$ quantum transition in a carbon nanotube Josephson junction: universal phase dependence and orbital degeneracy
Creators: name: Delagrange, R.
name: Weil, R.
name: Kasumov, A.
name: Ferrier, M.
name: Bouchiat, H.
name: Deblock, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate experimentally the supercurrent in a clean carbon nanotube quantum dot, close to orbital degeneracy, connected to superconducting leads in a regime of strong competition between local electronic correlations and superconducting proximity effect. For an odd occupancy of the dot and intermediate coupling to the reservoir, the Kondo effect can develop in the normal state and screen the local magnetic moment of the dot. This leads to singlet-doublet transitions that strongly affect the Josephson effect in a single-level quantum dot: the sign of the supercurrent changes from positive to negative (0 to $π$-junction). In the regime of strongest competition between the Kondo effect and proximity effect, meaning that the Kondo temperature equals the superconducting gap, the magnetic state of the dot undergoes a first order quantum transition induced by the superconducting phase difference across the junction. This is revealed experimentally by anharmonic current-phase relations. In addition, the very specific electronic configuration of clean carbon nanotubes, with two nearly orbitally degenerated states, leads to different physics depending whether only one or both quasi-degenerate upper levels of the dots participate to transport, which is determined by their occupancy and relative widths. When the transport of Cooper pairs takes place through only one of these levels, we find that the phase diagram of the phase-dependent 0-$π$ transition is a universal characteristic of a discontinuous level-crossing quantum transition at zero temperature. In the case were two levels participate to transport, the nanotube Josephson current exhibits a continuous 0-$π$ transition, independent of the superconducting phase, revealing a different physical mechanism of the transition.
description: 14 pages, 12 figures
The Equatorial Current Sheet and other interesting features of the Pulsar Magnetosphere
Creators: name: Contopoulos, Ioannis
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We want to understand what drives magnetospheric dissipation in the equatorial current sheet. Numerical simulations have limitations and, unless we have a clear a priori understanding of the physical processes involved, their results can be misleading. We argue that the canonical pulsar magnetosphere is strongly dissipative and that a large fraction (up to 30-40% in an aligned rotator) of the spindown luminosity is redirected towards the equator where it is dissipated into particle acceleration and emission of radiation. We show that this is due to the failure of the equatorial electric current to cross the Y-point at the tip of the corotating zone.
description: 13 pages, 2 figures, accepted for publication in the Journal of Plasma Physics
Laser-based X-ray and electron source for X-ray fluorescence studies
Creators: name: Brozas, F. Valle
name: Crego, A.
name: Roso, L.
name: Conde, A. Peralta
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In this work we present a modification to conventional X-rays fluorescence using electrons as excitation source, and compare it with the traditional X-ray excitation for the study of pigments. For this purpose we have constructed a laser-based source capable to produce X-rays as well as electrons. Because of the large penetration depth of X-rays, the collected fluorescence signal is a combination of several material layers of the artwork under study. However electrons are stopped in the first layers allowing therefore a more superficial analysis. We show that the combination of both excitation sources can provide extremely valuable information about the structure of the artwork.
Real-valued algebro-geometric solutions of the two-component Camassa-Holm hierarchy
Creators: name: Eckhardt, Jonathan
name: Gesztesy, Fritz
name: Holden, Helge
name: Kostenko, Aleksey
name: Teschl, Gerald
Publisher: name: arXiv
Year: 2015
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 35Q51, 35Q53, 37K15, Secondary 37K10, 37K20

description: We provide a construction of the two-component Camassa-Holm (CH-2) hierarchy employing a new zero-curvature formalism and identify and describe in detail the isospectral set associated to all real-valued, smooth, and bounded algebro-geometric solutions of the $n$th equation of the stationary CH-2 hierarchy as the real $n$-dimensional torus $\mathbb{T}^n$. We employ Dubrovin-type equations for auxiliary divisors and certain aspects of direct and inverse spectral theory for self-adjoint singular Hamiltonian systems. In particular, we employ Weyl-Titchmarsh theory for singular (canonical) Hamiltonian systems. While we focus primarily on the case of stationary algebro-geometric CH-2 solutions, we note that the time-dependent case subordinates to the stationary one with respect to isospectral torus questions.
description: 35 pages. arXiv admin note: substantial text overlap with arXiv:nlin/0208021
An electron motion induced by magnetic field pulse in bi-layer quantum wire
Creators: name: Chwiej, Tomasz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider theoretically the possibility of an electron acceleration in quantum wire by short magnetic pulses lasted bewteen several to few tens of picoseconds. We show that such possibility exists provided that, the electron is initially localized in part of nanowire that consists of two vertically aligned layers which are tunnel coupled. When a horizontally directed magnetic field, changeable in time, is also perpendicular to the main axis of a wire, it generates a rotational electric field in it which pushes the upper and the lower parts of the electron wavepacket in opposite directions. We have found however, that for an asymmetric vertical confinement, the majority part of charge density starts to move in the direction of local electric field in its layer but it also drags the minority part in the same direction what results in coherent motion of an entire wavepacket. We discuss the dynamics of this motion in dependence on the time characteristics of the magnetic pulse.
Simulations for Planning Next-Generation Exoplanet Radial Velocity Surveys
Creators: name: Newman, Patrick D.
name: Plavchan, Peter
name: Burt, Jennifer A.
name: Teske, Johanna
name: Mamajek, Eric E.
name: Leifer, 2 Stephanie
name: Gaudi, B. Scott
name: Blackwood, Gary
name: Morgan, Rhonda
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Future direct imaging missions such as HabEx and LUVOIR aim to catalog and characterize Earth-mass analogs around nearby stars. The exoplanet yield of these missions will be dependent on the frequency of Earth-like planets, and potentially the a priori knowledge of which stars specifically host suitable planetary systems. Ground or space based radial velocity surveys can potentially perform the pre-selection of targets and assist in the optimization of observation times, as opposed to an uninformed direct imaging survey. In this paper, we present our framework for simulating future radial velocity surveys of nearby stars in support of direct imaging missions. We generate lists of exposure times, observation time-series, and radial velocity time-series given a direct imaging target list. We generate simulated surveys for a proposed set of telescopes and precise radial velocity spectrographs spanning a set of plausible global-network architectures that may be considered for next generation extremely precise radial velocity surveys. We also develop figures of merit for observation frequency and planet detection sensitivity, and compare these across architectures. From these, we draw conclusions, given our stated assumptions and caveats, to optimize the yield of future radial velocity surveys in support of direct imaging missions. We find that all of our considered surveys obtain sufficient numbers of precise observations to meet the minimum theoretical white noise detection sensitivity for Earth-mass habitable zone planets, with margin to explore systematic effects due to stellar activity and correlated noise.
description: Submitted to AAS Journals; under revision
Design and Engineering of Modular Cooling Units for Photovoltaic Modules
Creators: name: Da Silva, V.O.
name: Morales Udaeta, M.E.M.
name: Veiga Gimenes, A.L.V.
name: Ribeiro Galvão, L.C.
name: Bernhard, D.B.
name: Costa, F.C.
name: Rigolin, P.H.C.
name: Linhares, A.L.
name: Silvestre, W.P.
name: Abreu Junior, A.C.
name: Kuratani, H.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2726-2731
description: The objective is to present the methods and procedures of the development activities of the cooling
equipment model for PV module in order to reduce the operating temperature and increase the performance of the
electricity production of a Photovoltaic Solar Plant (PVPP). The methodology is based on the development of
procedures, measurement and verification (M&V) of three models of modular cooling units. The production models
of the plate-tube type, model A and B did not show constructive and no operating problems, on the other hand, the
model multiple channels type, model C, presented problems in the welding process due to the small thickness of the
sheets in addition, it is failed the leak test, developed leaks, a fact which led to their exclusion, since its construction
entails higher development costs. The M&V on empirical tests show that the operating temperature of the PV module
with the model A remained below NOCT (47±2°C), whereas the PV module without modular cooling unit recorded
temperatures above 60,0°C with maximum temperature of 68,06°C. Therefore, the final model selected for the
building in series is the model A cooler.
Understanding opaque selling from an inventory-control perspective
Creators: name: Qu, Yuan
Publisher: name: No Publisher Supplied
Year: 2023

description: We study the phenomenon of opaque selling, where a seller uses price discounts and more guaranteed availabilities to entice buyers into accepting probabilistically assigned actual deliveries. While taking an inventory-management angle, we divide the project into two parts. The first part concentrates on why opaque selling has been widely adopted; meanwhile, the second part is more interested in how the seller can benefit from opportunities presented by opaque selling. In the first part, buyers’ aggregate behaviors may be either exogenously given or endogenously generated from strategic interactions. For both cases, we can rationalize the seller’s preference for opaque selling. When features of regular goods are roughly or exactly symmetric, this option affords the seller extra abilities to balance inventory levels to his own advantage when deciding on rationing: which product to use at a moment when an opaque request has just arrived. Our strategic case also yields monotone equilibrium trends that can help the seller reach judicious pricing decisions. The replenishment policy adopted by our study is also better suited than an existing alternative. Even the replenishment policy need not be given in the second part, where we attempt to simultaneously coordinate the two activities of replenishment and rationing. For the resultant continuous-time discrete-state control model, we succeed in identifying balance-inducing monotonicity (bim) property that, together with the more traditional notions of super/sub-modularity and in/de-creasing differences, lead to partially characterized optimal inventory management policies in the presence of opaque selling.
Pteropus admiralitatum Thomas 1894
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus admiralitatum

description: Pteropus admiralitatum Thomas, 1894. Ann. Mag. Nat. Hist., ser. 6, 13:293. TYPE LOCALITY: Papua New Guinea, Bismarck Arch., Admiralty Isis. DISTRIBUTION: Solomon Isis; Admiralty Isis, New Britain, and Tabar Isis (Bismarck Arch.). STATUS: CITES - Appendix II. SYNONYMS: colonus, goweri, solomonis (see Laurie and Hill, 1954:33).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 146, DOI: 10.5281/zenodo.7353060
description: {"references": ["Laurie, E. M. O., and J. E. Hill. 1954. List of land mammals of New Guinea, Celebes and adjacent islands 1758 - 1952. British Museum (Natural History) Publications, London, 175 pp."]}
Indicators at slaughter to assess broiler welfare on farm
Creators: name: EURCAW-Poultry-SFA
Publisher: name: Zenodo
Year: 2023
Subjects: broiler
animal welfare
iceberg indicator
farm
slaughter

description: This factsheet describes iceberg indicators that can be used to reflect the level of broiler chickens’ welfare on farm and briefly describes methods for their assessment at slaughter. These indicators could be considered during the inspection of flocks at slaughter. and briefly describes methods for their assessment.
Some cosmological features of 4D Gauss-Bonnet gravity with varying cosmological constant
Creators: name: Ahmed, Nasr
name: Alfreedi, Ajab A.
name: Alzulaibani, Alaa A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore some cosmological features of the newly suggested 4D Gauss-Bonnet gravity through two different models assuming a varying cosmological constant. Observational constraints, such as the cosmic transit and the flat curvature, have been considered in constructing the models. The cosmology in the current work has been probed using a given scale factor derived from the desired cosmic behavior which is the inverse of the usual viewpoint. The stability and cosmography have been studied for the two models.
Supplementary document for Birefringence-free photoelastic modulator with centimeter-square aperture operating at 2.7 MHz with sub-watt drive power - 7091079.pdf
Creators: name: Atalar, Okan
name: Arbabian, Amin
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplementary Material
Normalized classes of generalized Burgers equations
Creators: name: Pocheketa, Oleksandr A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35A30 (Primary), 35C05, 35K59, 35K05 (Secondary)

description: A hierarchy of normalized classes of generalized Burgers equations is studied. The equivalence groupoids of these classes are computed. The equivalence groupoids of classes of linearizable generalized Burgers equations are related to those of the associated linear counterparts using the Hopf--Cole transformation.
A unified, geometric framework for nonequilibrium protocol optimization
Creators: name: Chennakesavalu, Shriram
name: Rotskoff, Grant M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Controlling thermodynamic cycles to minimize the dissipated heat is a longstanding goal in thermodynamics, and more recently, a central challenge in stochastic thermodynamics for nanoscale systems. Here, we introduce a theoretical and computational framework for optimizing nonequilibrium control protocols that can transform a system between two distributions in a minimally dissipative fashion. These protocols optimally transport a system along paths through the space of probability distributions that minimize the dissipative cost of a transformation. Furthermore, we show that the thermodynamic metric -- determined via a linear response approach -- can be directly derived from the same objective function that is optimized in the optimal transport problem, thus providing a unified perspective on thermodynamic geometries. We investigate this unified geometric framework in two model systems and observe that our procedure for optimizing control protocols is robust beyond linear response.
Kupershmidt operators on Hom-Malcev algebras and their deformation
Creators: name: Harrathi, Fattoum
name: Mabrouk, Sami
name: Ncib, Othmen
name: Silvestrov, Sergei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Rings and Algebras (math.RA)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 17D30, 17B61, 17D10, 17A01, 17A30, 17B10

description: The main feature of Hom-algebras is that the identities defining the structures are twisted by linear maps. The purpose of this paper is to introduce and study a Hom-type generalization of pre-Malcev algebras, called Hom-pre-Malcev algebras. We also introduce the notion of Kupershmidt operators of Hom-Malcev and Hom-pre-Malcev algebras and show the connections between Hom-Malcev and Hom-pre-Malcev algebras using Kupershmidt operators. Hom-pre-Malcev algebras generalize Hom-pre-Lie algebras to the Hom-alternative setting and fit into a bigger framework with a close relationship with Hom-pre-alternative algebras. Finally, we establish a deformation theory of Kupershmidt operators on a Hom-Malcev algebra in consistence with the general principles of deformation theories and introduce the notion of Nijenhuis elements.
description: arXiv admin note: substantial text overlap with arXiv:2105.00606; text overlap with arXiv:1803.09287 by other authors
Reconciling simulated melting and ground-state properties of metals with a modified embedded-atom method potential
Creators: name: Sushko, Gennady
name: Verkhovtsev, Alexey
name: Kexel, Christian
name: Korol, Andrei V.
name: Schramm, Stefan
name: Solov'yov, Andrey V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We propose a modification of the embedded-atom method-type potential aiming at reconciling simulated melting and ground-state properties of metals by means of classical molecular dynamics. Considering titanium, magnesium, gold, and platinum as case studies, we demonstrate that simulations performed with the modified force field yield quantitatively correctly both the melting temperature of the metals and their ground-state properties. It is shown that the accounting for the long-range interatomic interactions noticeably affect the melting point assessment. The introduced modification weakens the interaction at interatomic distances exceeding the equilibrium one by a characteristic vibration amplitude defined by the Lindemann criterion, thus allowing for the correct simulation of melting, while keeping its behavior in the vicinity of the ground state minimum. The modification of the many-body potential has a general nature and can be applicable to metals with different characteristics of the electron structure as well as for many different molecular and solid state systems experiencing phase transitions.
description: 6 pages, 2 figures
Demand Side Management for Enhanced Integration of Photovoltaics into Grid
Creators: name: Wyrsch, N.
name: Riesen, Y.
name: Tschui, R.
name: Boillat, C.
name: Ballif, C.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2751-2754
description: Demand side management could be a very effective way to shift electric consumption of households to
the maximum production hours of photovoltaic (PV) systems. A field study on more than 100 households were
performed to evaluate the share of electric consumption that could be easily shifted. Assuming a fixed time window
for the PV production (namely 11:00 to 15:00) the share of consumption already in this window was found to be
around 20 % while the flexible consumption outside of that window was ca. 5% (not including hot water heating).
Information to households was found insufficient to push households to change behaviour and shift consumption
demonstrates that information is not sufficient. However, financial incentive households were able to shift ca. 3% of
their consumption, Hot water heating at mid-day (rather than during the night) is shown to be a very effective
demand side management measure.
Ground-State Candidate for the Dipolar Kagome Ising Antiferromagnet
Creators: name: Chioar, I. A.
name: Rougemaille, N.
name: Canals, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We have investigated the low-temperature thermodynamic properties of the dipolar kagome Ising antiferromagnet using at-equilibrium Monte Carlo simulations, in the quest for the ground-state manifold. In spite of the limitations of a single spin-flip approach, we managed to identify certain ordering patterns in the low-temperature regime and we propose a candidate for this unknown state. This novel configuration presents some intriguing features and passes several test-criteria, making it a very likely choice for the dipolar long-range order of this kagome Ising antiferromagnet.
description: 8 pages, 5 figures
Pteropus aldabrensis True 1893
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus aldabrensis

description: Pteropus aldabrensis True, 1893. Proc. U.S. Natl. Mus., 16:533. TYPE LOCALITY: Seychelles, Aldabra Isl. DISTRIBUTION: Known only from the type locality. STATUS: CITES - Appendix II; IUCN - Vulnerable as P. s. aldabrensis. COMMENTS: Included in P. seychellensis by Hill (1971b), but see Bergmans (1990).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 146, DOI: 10.5281/zenodo.7353060
description: {"references": ["Hill, J. E. 1971 b. The bats of Aldabra Atoll, western Indian Ocean. Philososophical Transactions of the Royal Society of London, B 260: 573 - 576.", "Bergmans, W. 1990. Taxonomy and biogeography of African fruit bats (Mammalia: Megachiroptera). 3. The genera Scotonycteris Matschie, 1894, Casinycteris Thomas, 1910, Pteropus Brisson, 1762, and Eidolon Rafinesque, 1815. Beaufortia, 40 (7): 111 - 177."]}
Iterative diagonalization of the non-Hermitian transcorrelated Hamiltonian using a plane-wave basis set: Application to $sp$-electron systems with deep core states
Creators: name: Ochi, Masayuki
name: Yamamoto, Yoshiyuki
name: Arita, Ryotaro
name: Tsuneyuki, Shinji
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We develop an iterative diagonalization scheme in solving a one-body self-consistent-field equation in the transcorrelated (TC) method using a plane-wave basis set. Non-Hermiticity in the TC method is well handled with a block-Davidson algorithm. We verify the required computational cost is efficiently reduced by our algorithm. In addition, we apply our plane-wave-basis TC calculation to some simple $sp$-electron systems with deep core states to elucidate an impact of the pseudopotential approximation to the calculated band structures. We find a position of the deep valence bands is improved by an explicit inclusion of core states, but an overall band structure is consistent with a regular setup that includes core states into the pseudopotentials. This study offers an important understanding for the future application of the TC method to strongly correlated solids.
description: 9 pages, 6 figures
Optimisation of Experimental Model Parameter Identification for Lead Acid Storage Batteries Used in Photovoltaic Systems
Creators: name: Achaibou, N.
name: Harikenchikh, A.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2755-2761
description: The storage of energy in batteries is a
cause of the failure and loss of reliability
in PV systems. Battery state of charge
evolution usually consists of measuring
manually the electrolyte density; this
method can only be employed by people
in charge of the maintenance of an
installation and is not feasible for a
private individual wishing to have at
least daily information.
In this paper we identified the
parameters of two solar lead acid
batteries using the method “parameter
estimation tool” of Simulink library. The
selected mathematical model is the
Guasch model. In order to validate the
model, a comparison between results
gotten by calculation with those by
experimental data found by testing this
battery under different constant currents
has been undertaken. This method
allows us to know and predict the
behavior of the battery in the
applications of photovoltaic solar
energy.
Gravitational Wave Signal for Quark Matter with Realistic Phase Transition
Creators: name: Fujimoto, Yuki
name: Fukushima, Kenji
name: Hotokezaka, Kenta
name: Kyutoku, Koutarou
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The cores of neutron stars (NSs) near the maximum mass realize the most highly compressed matter in the universe where quark degrees of freedom may be liberated. Such a state of dense matter is hypothesized as quark matter (QM) and its presence has awaited to be confirmed for decades in nuclear physics. Gravitational waves from binary NS mergers are expected to convey useful information called the equation of state (EOS). However, the signature for QM with realistic EOS is not yet established. Here, we show that the gravitational wave in the post-merger stage can distinguish the theory scenarios with and without a transition to QM. Instead of adopting specific EOSs as studied previously, we compile reliable EOS constraints from the ab initio approaches. We demonstrate that early collapse to a black hole after NS merger signifies softening of the EOS associated with the onset of QM in accord with ab initio constraints. Nature of hadron-quark phase transition can be further constrained by the condition that electromagnetic counterparts need to be energized by the material left outside the remnant black hole.
description: 20 pages, 5 figures
Critical current scaling in long diffusive graphene-based Josephson junctions
Creators: name: Ke, Chung-Ting
name: Borzenets, Ivan V.
name: Draelos, Anne W.
name: Amet, Francois
name: Bomze, Yuriy
name: Jones, Gareth
name: Craciun, Monica
name: Russo, Saverio
name: Yamamoto, Michihisa
name: Tarucha, Seigo
name: Finkelstein, Gleb
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present transport measurements on long diffusive graphene-based Josephson junctions. Several junctions are made on a single-domain crystal of CVD graphene and feature the same contact width of ~9$μ$m but vary in length from 400 to 1000 nm. As the carrier density is tuned with the gate voltage, the critical current in the these junctions spans a range from a few nA up to more than $5μ$A, while the Thouless energy, ETh, covers almost two orders of magnitude. Over much of this range, the product of the critical current and the normal resistance IcRn is found to scale linearly with ETh, as expected from theory. However, the ratio IcRn /ETh is found to be 0.1-0.2: much smaller than the predicted ~10 for long diffusive SNS junctions.
description: 4 pages main text, 4 pages supplementary, 7 figures
The Energy System Defined by PV: Balancing Generation and Load via Adequate Plant Design and Load Adaptation
Creators: name: Krauter, S.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2732-2735
description: In the foreseeable future, sustainable electrical energy systems should be capable to handle up to 100%
of renewable energy contribution. Due to the recent price-drops, PV will play a major role in the global renewable
energy portfolio. The technical implications of this development (also referred to as "energy transition" in Germany)
in all areas electricity supply (generation, transmission, distribution, management) are manifold and consequently
lead to a new system design. For the effective integration of PV the major challenges are volatile generation given by
sun’s position, actual weather conditions, and the load level. On one hand the article addresses the generation side by
adapting the PV power plant layout to meet the load requirements (e.g., via azimuth and tilt angle modification to
achieve peak power output during periods of high demand and higher prices on the spot market, or via thermal
conditioning of PV modules (e.g. more power output in the morning), and on the other hand the article discusses
several possibilities of load management (e.g., load shifting, inducements, load adaptation, appropriate market
design).
Pteropus alecto Temminck 1837
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus alecto

description: Pteropus alecto Temminck, 1837. Monogr. Mamm., 2:75. TYPE LOCALITY: Indonesia, Sulawesi, Menado. DISTRIBUTION: Sulawesi, Saleyer Isl, Lombok, Bawean Isl, Kangean Isis, Sumba Isl, and Savu Isl (Indonesia); N and E Australia; S New Guinea. STATUS: CITES - Appendix II. SYNONYMS: aterrimus, baveanus, gouldi, morio. COMMENTS: Includes gouldi; see Tate (1942b:336, 337).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 146, DOI: 10.5281/zenodo.7353060
description: {"references": ["Tate, G. H. H. 1942 b. Results of the Archbold expeditions. No. 48. Pteropodidae (Chiroptera) of the Archbold Collections. Bulletin of the American Museum of Natural History, 80: 331 - 347."]}
Voltage control of the quantum scattering time in InAs/GaSb/InAs trilayer quantum wells
Creators: name: Meyer, M.
name: Schmid, S.
name: Jabeen, F.
name: Bastard, G.
name: Hartmann, F.
name: Höfling, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the evolution of the quantum scattering time by gate voltage training in the topological insulator based on InAs/GaSb/InAs trilayer quantum wells. Depending on the minimal gate voltage applied during a gate voltage sweep cycle, the quantum scattering time can be improved by 50 % from 0.08 ps to 0.12 ps albeit the transport scattering time is rather constant around 1.0 ps. The ratio of the quantum scattering time versus transport scattering time scales linearly with the charge carrier density and varies from 10 to 30, indicating Coulombic scattering as the dominant scattering mechanism. Our findings may enable to improve the residual bulk conductivity issue and help in observing helical edge channels in topological insulators based on InAs/GaSb quantum well heterostructures even for macroscopic devices.
Pteropus anetianus Gray 1870
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus anetianus

description: Pteropus anetianus Gray, 1870. Cat. Monkeys, Lemurs, Fruit-eating Bats Brit. Mus., p. 101. TYPE LOCALITY: Vanuatu (= New Hebrides), Aneiteum (= Aneityum). DISTRIBUTION: Vanuatu (= New Hebrides) including Banks Isis. STATUS: CITES - Appendix II. SYNONYMS: aorensis, bakeri, banksiana, eotinus, motalavae, pastoris. COMMENTS: Includes eotinus, bakeri, and banksiana; see Felten and Kock (1972:182-185).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 146, DOI: 10.5281/zenodo.7353060
description: {"references": ["Felten, H., and D. Kock. 1972. Weitere Flughunde der Gattung Pteropus von den Neuen Hebriden, sowie den Banks-und Torres-Inseln, Pacifischer Ozean (Mammalia: Chiroptera). Senckenbergiana Biologica, 53: 179 - 188."]}
Disappearance of Mott oscillations in sub-barrier elastic scattering of identical nuclei and atomic ions
Creators: name: Hussein, M. S.
name: Canto, L. F.
name: Donangelo, R.
name: Mittig, W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The scattering of identical nuclei at low energies exhibits conspicuous Mott oscillations which can be used to investigate the presence of components in the predominantly Coulomb interaction arising from several physical effects. It is found that at a certain critical value of the Sommerfeld parameter the Mott oscillations disappear and the cross section becomes quite flat. We call this effect Transverse Isotropy (TI). The critical value of the Sommerfeld parameter at which TI sets in is found to be $η_{c} = \sqrt{3s +2}$, where $s$ is the spin of the nuclei participating in the scattering. No TI is found in the Mott scattering of identical Fermionic nuclei. The critical center of mass energy corresponding to $η_c$ is found to be $E_c$ = 0.40 MeV for $α+ α$ (s = 0) , 1.2 MeV for $^{6}$Li + $^{6}$LI (s = 1) and 7.1 MeV for $^{10}$B + $^{10}$B (s = 3). We further found that the inclusion of the nuclear interaction induces a significant modification in the TI. We suggest measurements at these sub-barrier energies for the purpose of extracting useful information about the nuclear interaction between light heavy ions. We also suggest extending the study of the TI to the scattering of identical atomic ions.
description: 9 pages, one figure, To be published in a special issue of Few Body Systems, "Weakly Bound Exotic Nuclei: Challenges for structure and reactions". This special issue is dedicated to the proceedings of a Workshop on Weakly-Bound Exotic Nuclei,Sunday, May 24 - Saturday, May 30, 2015 Natal, RN - Brazi
Use of Solar PV Energy to Replace Nuclear Power in Taiwan
Creators: name: Huang, B.-J.
name: Hsu, P.C.
name: Wang, Y.H.
name: Tsai, J.H.
name: Chen, L.
name: Li, K.
name: Lee, K.Y.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2736-2741
description: The present study shows that performing energy saving retrofit in air conditioning (A/C) and lighting then utilizing
solar PV energy to supply the remaining load demand in grid can reach non-nuclear goal in Taiwan. An office was
chosen as the demonstration site (D-1). Four energy-saving retrofits on air conditioning and lighting results in 65%
energy saving. A 6 kWp solar PV system for self-consumption and without feeding energy back to grid is further
installed to replace additional 20% energy to reach 85% total energy saving. The total investment for solar PV system
and energy-saving retrofit is USD30,000. The net total energy saving in 20 years is USD80,000, including M&O cost.
If energy-saving in air conditioning and lighting can reach 60% as D-1 did in the whole country, the nuclear
power (18% electricity) can be abandomed. Several scenarios to reach non-nuclear goal are proposed. The energy
storage for each 3 kWp PV unit is estimated around 4-6 kWh. Heat storage can be utilized to reduce cost dramatically
as it is 10 times cheaper than battery.
Appendix S3-10 from Museomics unveil systematics, diversity and evolution of Australian cycad-pollinating weevils
Creators: name: Hsiao, Yun
name: Oberprieler, Rolf G.
name: Zwick, Andreas
name: Zhou, Yu-Lingzi
name: Ślipiński, Adam
Publisher: name: The Royal Society
Year: 2023
Subjects: Animal Systematics and Taxonomy

description: Appendix S3. Details in additional BI analyses.; S4. Best ML trees based on the Degen and AA datasets, BI analyses by BEAST 2 and MrBayes, and additional ML and BI analyses of Tranes group.; S5. Fossil records selected for the calibration of nodes, with the taxonomic assessment.; S6. Details in additional dating analyses by BEAST 2.; S7. Additional RelTime estimates using AA dataset and ML phylogeny based on the AA dataset and separate dating analyses by BEAST 2.; S8. Additional co-speciation analyses using two different lumping categories of Macrozamia species.; S9. Systematics of non-cycad-associated group of the Tranes group and taxonomic issue on Lyterius.; S10. Geographical distribution of Tranes lyterioides lineage based on the locality data from specimen labels. The map was created by GPS visualizer (www.gpsvisualizer.com, accessed on 22 July 2022).
PRONTAS: Remotely Piloted Solar Plane Prototype
Creators: name: Cendagorta, M.
name: Friend, E.
name: Galván, G.
name: Huebra, M.
name: Martín, J.
name: Torres, M.
name: González, C.
name: González, M.
name: Jarzabek, A.
name: Moreno, A.
name: Martín De La Escalera, F.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2742-2744
description: PRONTAS is a project aimed at building a solar-powered plane of 16 meters wingspan capable of flying
autonomously for indefinite time to carry out different scientific, institutional or commercial pre-defined missions. Solar
airplanes have the advantage of flying at high altitudes with no need of contaminating conventional fuels. This plane will
be remotely controlled to carry out several missions like surveillance, rescues, environmental protection,
communications in case of emergencies, material research or urban development and geographical control. This plane is
powered exclusively by solar energy captured through the photovoltaic cells that cover its wings, and has a storage
system that allows for flying continuously, even at night and during low radiation conditions. The plane is equipped with
an autonomous navigation system that it is both capable of maintaining a preset trajectory and taking the best flight
strategies according to the energy available, depending on the environmental conditions of solar radiation.
Breitenlohner-Freedman bound on hyperbolic tilings
Creators: name: Basteiro, Pablo
name: Dusel, Felix
name: Erdmenger, Johanna
name: Herdt, Dietmar
name: Hinrichsen, Haye
name: Meyer, René
name: Schrauth, Manuel
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We establish how the Breitenlohner-Freedman (BF) bound is realized on tilings of two-dimensional Euclidean Anti-de Sitter space. For the continuum, the BF bound states that on Anti-de Sitter spaces, fluctuation modes remain stable for small negative mass-squared $m^2$. This follows from a real and positive total energy of the gravitational system. For finite cutoff $\varepsilon$, we solve the Klein-Gordon equation numerically on regular hyperbolic tilings. When $\varepsilon\to0$, we find that the continuum BF bound is approached in a manner independent of the tiling. We confirm these results via simulations of a hyperbolic electric circuit. Moreover, we propose a novel circuit including active elements that allows to further scan values of $m^2$ above the BF bound.
description: 11 pages, 9 figures, improved discussion and analysis, corrected typos
Pteropus argentatus Gray 1844
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus argentatus

description: Pteropus argentatus Gray, 1844. Mammalia, in Voy. "Sulphur", Zook, 1:30. TYPE LOCALITY: Indonesia, Moluccas Isis, Amboina Isl (uncertain). DISTRIBUTION: Perhaps Amboina Isl. STATUS: CITES - Appendix II. COMMENTS: Uncertain status; known only by the type. Sulawesi specimens were allocated to Acerodon celebensis by Musser et al. (1982a).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 146, DOI: 10.5281/zenodo.7353060
description: {"references": ["Musser, G. G., K. F. Koopman, and D. Califia. 1982 a. The Sulawesian Pteropus arquatus and P. argentatus are Acerodon celebensis; the Philippine P. leucotus is an Acerodon. Journal of Mammalogy, 63: 319 - 328."]}
The Swiss PV Wall System to Maximise Self-Consumption in a Single Building Element
Creators: name: Baumgartner, F.P.
name: Knecht, R.
name: Lantschner, D.
name: Baumann, T.
name: Nussbaumer, H.
name: Böhler, J.
name: Brühl, U.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2680-2685
description: With decreasing subsidies for PV energy fed into the grid other economic incentives are needed to sustain
the growth of PV power. An effective solution is to increase self-consumption for grid-connected, residential PV systems
by means of generating hot water by the use of a heat pump. This widely used concept of thermal energy storage has been
adapted for a facade element with integrated PV modules for the first time. The so called Swiss PV Wall System (SPWS)
contains all elements needed in the façade, behind the PV modules with a power of 1 kWp, like a PV inverter, a heat
pump and a hot water tank. Simulation showed that virtually 100% of the PV energy can be used either by the heat pump
to produce hot-water or the household’s electricity needs. A functional model of the SPWS was realized and first
measurements showed that the heat demand of a one family household may be covered for the majority of the months
during the year. Economic analyses showed that the cost per kWh heat is at about 0.215 CHF and thus lower than
standard solar thermal and some fossil solutions.
Dirac's Equation in $R$-Minkowski Spacetime
Creators: name: Foughali, T.
name: Bouda, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We recently constructed the $R$-Poincaré algebra from an appropriate deformed Poisson brackets which reproduce the Fock coordinate transformation. We showed then that the spacetime of this transformation is the de Sitter one. In this paper, we derive in the $R$-Minkowski spacetime the Dirac equation and show that this is none other than the Dirac equation in the de Sitter spacetime given by its conformally flat metric. Furthermore, we propose a new approach for solving Dirac's equation in the de Sitter spacetime using the Schrödinger picture.
description: 13 pages, no figures
A symmetric 2-tensor canonically associated to Q-curvature and its applications
Creators: name: Lin, Yueh-Ju
name: Yuan, Wei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this article, we define a symmetric 2-tensor canonically associated to Q-curvature called J-tensor on any Riemannian manifold with dimension at least three. The relation between J-tensor and Q-curvature is precisely like Ricci tensor and scalar curvature. Thus it can be interpreted as a higher-order analogue of Ricci tensor. This tensor can also be used to understand Chang-Gursky-Yang's theorem on 4-dimensional Q-singular metrics. Moreover, we show an Almost-Schur Lemma holds for Q-curvature, which gives an estimate of Q-curvature on closed manifolds.
description: 14 pages, new remarks, references and acknowledgement added in the introduction
PV Battery System Tested with Real-Life Consumption Data
Creators: name: Rode Mosbæk, R.
name: Katic, I.
Publisher: name: WIP
Year: 2015
Subjects: PV APPLICATIONS
PV as Part of the Energy System

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2686-2689
description: With a decrease in feed-in tariffs for photovoltaic (PV) systems in Europe and a decrease in the cost of
Li-ion batteries, PV battery systems for increased self-consumption are becoming of increasing interest. A 4.8 kWh PV
battery system with lithium iron phosphate (LiFePO4) batteries was designed. The battery pack was installed with the
commercially available LiTHIUM BALANCE A/S battery management system that manages the battery cells for
achieving higher yield and increased service life of the battery packs.
The PV battery system was installed in the EnergyFlexHouse at Danish Technological Institute, a full-scale flexible
measurement platform for construction and installation technology. This gave the possibility to test the PV battery
system in a single-family house environment. The PV battery system was connected to a PV array of 3.5 kWp. High
resolution consumptions data for typical single family households was used for minute by minute load simulation in
the tested PV battery system. Economic calculations based on Danish feed in tariffs are calculated for a PV battery
system and a PV system without battery to clarify if it is profitable for a Danish consumer to install a PV battery.
Economic calculations shows that a PV battery system could potentially stimulate the demand for PV systems despite
decreasing feed in tariffs.
Imprints of log-periodicity in thermoacoustic systems close to lean blowout
Creators: name: Banerjee, Ankan
name: Pavithran, Induja
name: Sujith, R. I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In the context of statistical physics, critical phenomena are accompanied by power laws having a singularity at the critical point where a sudden change in the state of the system occurs. In this work, we show that lean blowout (LBO) in a turbulent thermoacoustic system can be viewed as a critical phenomenon. As a crucial discovery of the system dynamics approaching LBO, we unravel the existence of the discrete scale invariance (DSI). In this context, we identify the presence of log-periodic oscillations in the temporal evolution of the amplitude of dominant mode of low-frequency oscillations $(A_f)$ exist in pressure fluctuations preceding LBO. The presence of DSI indicates the recursive development of blowout. Additionally, we find that $A_f$ shows a faster than exponential growth and becomes singular when blowout occurs. We then present a model that depicts the evolution of $A_f$ based on log-periodic corrections to the power law associated with its growth. Using the model, we find that blowout can be predicted even several seconds earlier. The predicted time of LBO in good agreement with the actual time of occurrence of LBO obtained from the experiment.
description: 15 pages, 10 figures