cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An XMM-Newton Survey of the Soft X-ray Background. III. The Galactic Halo X-ray Emission
Creators: name: Henley, David B.
name: Shelton, Robin L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present measurements of the Galactic halo's X-ray emission for 110 XMM-Newton sight lines, selected to minimize contamination from solar wind charge exchange emission. We detect emission from few million degree gas on ~4/5 of our sight lines. The temperature is fairly uniform (median = 2.22e6 K, interquartile range = 0.63e6 K), while the emission measure and intrinsic 0.5--2.0 keV surface brightness vary by over an order of magnitude (~(0.4-7)e-3 cm^-6 pc and ~(0.5-7)e-12 erg cm^-2 s^-1 deg^-2, respectively, with median detections of 1.9e-3 cm^-6 pc and 1.5e-12 erg cm^-2 s^-1 deg^-2, respectively). The high-latitude sky contains a patchy distribution of few million degree gas. This gas exhibits a general increase in emission measure toward the inner Galaxy in the southern Galactic hemisphere. However, there is no tendency for our observed emission measures to decrease with increasing Galactic latitude, contrary to what is expected for a disk-like halo morphology. The measured temperatures, brightnesses, and spatial distributions of the gas can be used to place constraints on models for the dominant heating sources of the halo. We provide some discussion of such heating sources, but defer comparisons between the observations and detailed models to a later paper.
description: 22 pages, 8 figures. Accepted for publication in the Astrophysical Journal
Communication and dissemination Final report
Creators: name: Presas, Marina
name: Araujo, Rosa
Publisher: name: Zenodo
Year: 2022

description: The present public document presents an update of the VitiGEOSS project dissemination and communication plan outlined at M7, aiming at reaching as many relevant actors as possible to inform them on the activities and results derived from the project. BSC and EUT are responsible for designing and implementing VitiGEOSS communication and dissemination strategy, but all consortium partners will be involved in it.
 The channels and platforms considered in the communication and dissemination plan are: social media channels, official website, materials to be distributed in key events, media relations to specialized media outlets, scientific publications, the organization of workshops and training activities, and attendance to strategic conferences, fairs and congresses where the project can be presented and the organisation of stakeholder engagement events, among others.
title: Nürnberg zur Zeit Ludwigs I. Zeichnungen von Georg Christoph Wilder (1794-1855) aus dem Besitz der Stadt Nürnberg. Ausstellung im Stadtmuseum Fembohaus bis zum 28. September 1986
Creators: name: Hebecker, Inge
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Ultracold chemistry and its reaction kinetics
Creators: name: Richter, Florian
name: Becker, Daniel
name: Bény, Cédric
name: Schulze, Torben A.
name: Ospelkaus, Silke
name: Osborne, Tobias J.
Publisher: name: Bristol : IOP Publishing Ltd
Year: 2015
Subjects: subject: ultracold molecules
subject: entanglement
subject: nonlinear dynamics
subject: ultracold gases
subject: ultrakalte Moleküle
subject: Nichtlineare Dynamik
subject: ultrakalte Gase
subject: ultrakaltes Gas
subject: Ultrakaltes Molekül
subject: Nichtlineare Dynamik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study the reaction kinetics of chemical processes occurring in the ultracold regime and systematically investigate their dynamics. Quantum entanglement is found to play a key role in driving an ultracold reaction towards a dynamical equilibrium. In case of multiple concurrent reactions Hamiltonian chaos dominates the phase space dynamics in the mean field approximation.
Systematische Berücksichtigung der EMV beim Entwurf von induktiven Energieübertragungssystemen
Creators: name: Wiegand, Marc
name: Klagges, Daniel
name: Grewing, Andreas
name: Bärenfänger, Jörg
Publisher: name: Berlin : VDE-Verlag
Year: 2014
Subjects: subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Induktive Energieübertragungssysteme bieten insbesondere im Bereich der Elektromobilität große Vorteile bei der Nutzerfreundlichkeit. Da hier Leistungen von mehreren Kilowatt kabellos übertragen werden, ist ein sorgfältiger Entwurf der Systeme hinsichtlich der Elektromagnetischen Verträglichkeit notwendig. Hierbei sind insbesondere die Störaussendung und Personenschutzgrenzwerte zu berücksichtigen. Der Vortrag beschreibt hierbei den Entwurfsprozess zur induktiven Energieübertragung hinsichtlich der EMV sowie in diesem Rahmen durchgeführte Messungen. Berücksichtigt werden hierbei theoretische Betrachtungen zur Systemauslegung. Da insbesondere die Spulengeometrien der magnetischen Strecken die Störaussendung maßgeblich beeinflussen, wurden verschiedene Simulationen inklusive der magnetischen Felder im Be-reich der Störaussendung und der Personenschutzgrenzwerte durchgeführt. Basierend auf diesen Untersuchungen wurden mehrere Prototypen aufgebaut. Diese Prototypen berücksichtigen verschiedene Konfigurationen der magnetischen Strecken. Zur Evaluation der Prototypen wurden Störaussendungsmessungen durchgeführt. Da es zum Zeitpunkt der Messungen noch keine normativen Messverfahren für induktive Energieübertragungssysteme gab, lag ein Aspekt auf der Auswahl der geeigneten Messverfahren und Messaufbauten.
Historische und philosophische Notizen über das Kontinuum
Creators: name: Bedürftig, Thomas
name: Murawski, Roman
Publisher: name: Heidelberg : Springer Verlag
Year: 2017
Subjects: subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik
subject: Dewey Decimal Classification::100 | Philosophie

description: The final publication is available at Springer via http://dx.doi.org/10.1007/s00591-017-0179-2
NMR study on reaction processes from aluminum chloride hydroxides to alpha alumina powders
Creators: name: Nyblova, Daniela
name: Senna, Mamoru
name: Düvel, Andre
name: Heitjans, Paul
name: Billik, Peter
name: Filo, Juraj
name: Sepelak, Vladimir
Publisher: name: Hoboken, NJ : Wiley
Year: 2018
Subjects: subject: aluminum chloride hydroxide
subject: nuclear magnetic resonance
subject: NMR
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Starting from gelatinous aluminum chloride hydroxide, the transformation process toward α‐Al2O3 was examined using 27Al NMR, both in the liquid and solid states, as a main analytical tool. By increasing the hydrolysis ratio (h, defined as [OH−]/[Al3+]) of the starting aqueous precursor up to h = 2.5, the transition temperature to the final product, α‐Al2O3, decreased to as low as 500°C. In this case, the structural change from amorphous alumina to α‐Al2O3 took place without intermediate transition Al2O3 phases. Examining the process of networking during the transition from aqueous sol–through the state of xerogel–to final anhydrous oxide by nuclear magnetic resonance (NMR) revealed the presence of highly polymeric species mainly ascribed to δ‐[Al2O8Al28(OH)56(H2O)24]18+ (δ‐Al30). δ‐Al30 species were found in the solution phase and became predominant after drying. We conclude that the lower temperature synthesis of α‐Al2O3 became possible due to preformation of polymerized AlO6 construction units in the precursor, reducing the energy barrier for the nucleation of the final α‐Al2O3 phase.
String order in dipole-blockaded quantum liquids
Creators: name: Weimer, Hendrik
Publisher: name: Bristol : IOP Publishing Ltd
Year: 2014
Subjects: subject: quantum phase transition
subject: dipolar interaction
subject: Rydberg atoms
subject: Quantenphasenübergang
subject: dipolare Wechselwirkung
subject: Rydberg-Atom
subject: Rydberg-Zustand
subject: Quantenphasenübergang
subject: Zwischenmolekulare Kräfte
subject: Wechselwirkung
subject: Atom
subject: Rydberg-Zustand
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study the quantum melting of quasi-one-dimensional lattice models in which the dominant energy scale is given by a repulsive dipolar interaction. By constructing an effective low-energy theory, we show that the melting of crystalline phases can occur into two distinct liquid phases having the same algebraic decay of density–density correlations but showing a different non-local correlation function expressing string order. We present possible experimental realizations using ultracold atoms and molecules, introducing an implementation based on resonantly driven Rydberg atoms that offers additional benefits compared to a weak admixture of the Rydberg state.
title: Leveraging rule-based machine translation knowledge for under-resourced neural machine translation models
Creators: name: Torregrosa, Daniel
name: Pasricha, Nivranshu
name: Chakravarth, Bharathi Raja
name: Masoud, Maraim
name: Alonso, Juan
name: Casas, Noe
name: Arcan, Mihael
Publisher: name: National University of Ireland Galway
Year: 2019

description: Conference paper
TREX Workshop: Code Tuning for the Exascale
Creators: name: Jalby, William
name: Valensi, Cédric
name: Blaas-Schenner, Claudia
name: Vialov, Ivan
name: Vysocký, Ondřej
name: Tomáš PANOC
name: Vavrik, Radim
Publisher: name: Zenodo
Year: 2023

description: The TREX project, in collaboration with the Austrian, Czech, and Slovak National Competence Centres for HPC, is hosting the "Code Tuning for the Exascale" workshop in Bratislava, Slovakia, from June 5th to 7th. This workshop is specifically designed for code developers and focuses on code optimisation. Participants will have the opportunity to engage in tutorials and training activities that emphasize performance, power consumption, and energy efficiency in HPC systems. The workshop also featured hands-on sessions showcasing the TREX CHAMP code and other valuable tools. The main objectives of the workshop are to enhance the practical experience in optimising HPC systems, help participants align their code implementation with HPC objectives, and provide valuable hands-on experience with practical QMC simulations using the CHAMP code. See the official event page for more details at TREX Events.
Mechanics and Tunable Bandgap by Straining in Single-Layer Hexagonal Boron-Nitride
Creators: name: Wu, Jiangtao
name: Wang, Baolin
name: Wei, Yujie
name: Yang, Ronggui
name: Dresselhaus, Mildred
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Current interest in two-dimensional materials extends from graphene to others systems like single-layer hexagonal boron-nitride (h-BN), for the possibility of making heterogeneous structures to achieve exceptional properties that cannot be realized in graphene.The electrically insulating h-BN and semi-metal graphene may open good opportunities to realize a semiconductor by manipulating the morphology and composition of such heterogeneous structures.Here we report the mechanical properties of h-BN and its band structures tuned by mechanical straining by using the density functional theory calculations.The elastic properties, both the Young's modulus and bending rigidity for h-BN, are isotropic.We reveal that there is a bi-linear dependence of band gap on the applied tensile strains in h-BN. Mechanical strain can tune single-layer h-BN from an insulator to a semiconductor, with a band gap in the 4.7eV to 1.5eV range.
description: 16 pages, 5 figures
The Distribution and Ecology of Bats in the Polillo Islands, Philippines
Creators: name: Alviola, Phillip A.
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Mammalia
Chiroptera
Chordata
Animalia
bats
bat

description: (Uploaded by Plazi for the Bat Literature Project) The bats of Polillo Island group are described. A total of 25 species of bats were recorded. These include eight fruit bats, one megadermatid, nine rhinolophid and seven vespertilionid. Of the 25 species recorded, 11 are listed as new records for the island. The study employed disturbance gradient surveys in Sibulan watershed, Polillo Island to determine diversity patterns. Trends show that many species are generalist, particularly fruit bats, owing to the small size of the forest and its proximity to disturbed habitats. In addition, new netting techniques were employed: ground netting, sub canopy netting and tunnel trapping. Tunnel trapping proved to be more efficient in capturing bats having an efficiency of 41 and 28-fold than ground and sub-canopy netting respectively. Preliminary assessment shows that foraging behavior plays a great role in discrepancies in capture efficiencies.
Tuning of one-dimensional plasmons by Ag-Doping in Ag-√3-ordered atomic wires
Creators: name: Krieg, U.
name: Zhang, Yu
name: Tegenkamp, Christoph
name: Pfnür, Herbert
Publisher: name: Bristol : IOP Publishing Ltd
Year: 2014
Subjects: subject: one-dimensional plasmons
subject: Ag monolayer
subject: Si vicinal surface
subject: doping
subject: Si
subject: Silicon
subject: vicinal surface
subject: Plasmon
subject: eindimensionale Plasmonen
subject: 1D-Plasmonen
subject: Monoschicht
subject: Ag-Monoschicht
subject: Silber
subject: Ag
subject: Silicium
subject: vicinale Oberfläche
subject: plasmons in one dimension
subject: Plasmon
subject: Dimension 1
subject: Monoschicht
subject: Silber
subject: Silicium
subject: Oberfläche
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We generated arrays of silver wires with a height of 1 atom and an average width of 11 atoms on the Si(557) surface via self-assembly with local √3 x √3 order, and investigated the 1D plasmon formation in them using a combination of high-resolution electron loss spectroscopy with low-energy electron diffraction. After a series of thermal desorption experiments followed by adding small concentrations of Ag, pure Ag-√3 ordered arrays of nanowires, separated by (113) facets, are intrinsically semi metallic or semiconducting, i.e., the metallicity of the Ag wires seems to be caused by excess atoms added to the (locally) perfectly ordered √3 x √3 layer. The proof has been carried out by post-adsorption of Ag atoms in the range between 0.004 to 0.03 monolayers and the quantitative determination of the frequency dependence of the 1D plasmon due to this excess Ag concentration. As expected for a doping mechanism, there is no minimum excess concentration. The lack of temperature dependence is not compatible with the formation of an adatom gas in the second layer, but suggests extrinsic doping by adatoms bound at the stepped (113) facets. Although strong deviations from a nearly free electron gas are expected in 1D, the Ag concentration dependence of the 1D plasmonic losses is fully compatible with the √ne dependence predicted by this model. Adsorption of traces of residual gas can have a qualitatively similar doping effect.
Acceleration and deceleration at constant speed: systematic modulation of motion perception by kinematic sonification
Creators: name: Effenberg, Alfred O.
name: Schmitz, Gerd
Publisher: name: Hoboken, NJ : Wiley
Year: 2018
Subjects: subject: biological motion perception
subject: intermodal adjustment
subject: motor rehabilitation
subject: movement sonification
subject: multisensory integration
subject: multisensory representation
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::790 | Freizeitgestaltung, Darstellende Kunst
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Many domains of human behavior are based on multisensory representations. Knowledge about the principles of multisensory integration is useful to configure real‐time movement information for the online support of perceptuomotor processes (motor perception, control, and learning). A powerful method for generating real‐time information is movement sonification. Remarkable evidence exists on movement‐acoustic real‐time information being effective in behavioral domains (music training, motor rehabilitation, sports). Here, we investigate whether and how biological motion perception can be enhanced, substituted, or modulated by kinematic sonification, with a focus on pitch coding. We work with gross motor cyclic movements and investigate the effectiveness of pitch scaling and consistent transposition on audiovisual motor perception accuracy (Experiment A). Beyond that, a new kind of audiovisual stimulus with inconsistent pitch transposition is used to produce a directed modulation of the integrated audiovisual percept (Experiment B). Results from Experiment A indicate pitch being powerful for mediating kinematic information to enhance motor perception and substituting information between perceptual modalities, even exceeding visual performance. Beyond these findings, results from Experiment B indicate that visual estimations of movement velocity can be enhanced or reduced auditorily. Movement sonification used for reshaping intermodal adjustments should be a powerful new tool for subconsciously shaping human movement patterns in the future.
Electron spin orientation under in-plane optical excitation in GaAs quantum wells
Creators: name: Pfalz, S.
name: Winkler, R.
name: Ubbelohde, N.
name: Hägele, D.
name: Oestreich, Michael
Publisher: name: College Park, MD : American Physical Society
Year: 2012
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study the optical orientation of electron spins in GaAs/AlGaAs quantum wells for excitation in the growth direction and for in-plane excitation. Time- and polarization-resolved photoluminescence excitation measurements show, for resonant excitation of the heavy-hole conduction band transition, a negligible degree of electron spin polarization for in-plane excitation and nearly 100% for excitation in the growth direction. For resonant excitation of the light-hole conduction band transition, the excited electron spin polarization has the same (opposite) direction for in-plane excitation (in the growth direction) as for excitation into the continuum. The experimental results are well explained by an accurate multiband theory of excitonic absorption taking fully into account electron-hole Coulomb correlations and heavy-hole light-hole coupling. © 2012 American Physical Society.
title: Production of a Signal By Irradiated Cells Which Leads to a Response In Unirradiated Cells Characteristic Of Initiation of Apoptosis
Creators: name: Lyng, Fiona
name: Seymour, C
name: Mothersill, C
Publisher: name: Technological University of Dublin
Year: 2000

description: This study investigated the ability of medium from irradiated cells to induce early events in the apoptotic cascade, such as mobilization of intracellular calcium, loss of mitochondrial membrane potential and increase in reactive oxygen species, in cells which were never exposed to radiation. Medium from irradiated human keratinocytes was harvested and transferred to unirradiated keratinocytes. Endpoints characteristic of the initiation of apoptosis were monitored for a period of 24 h following medium transfer. Clonogenic survival was also measured. Rapid calcium fluxes (within 30 s), loss of mitochondrial membrane potential, increases in reactive oxygen species (from 6 h after medium transfer), an increase in the number of apoptotic cells (48 hours after medium transfer) and a marked reduction in clonogenic survival (after 9 days) were observed. There was no significant difference between medium generated by cells irradiated at 0.5 Gy or 5 Gy. The data suggest that initiating events in the apoptotic cascade were induced in unexposed cells by a signal produced by irradiated cells
Fecal parasite risk in the endangered proboscis monkey is higher in an anthropogenically managed forest environment compared to a riparian rain forest in Sabah, Borneo
Creators: name: Klaus, Annette
name: Strube, Christina
name: Röper, Kathrin Monika
name: Radespiel, Ute
name: Schaarschmidt, Frank
name: Nathan, Senthilvel
name: Goossens, Benoit
name: Zimmermann, Elke
Publisher: name: San Francisco, CA : Public Library of Science
Year: 2018
Subjects: subject: Nasalis larvatus
subject: Borneo
subject: parasite species richness (PSR)
subject: fecal parasite risk
subject: Lower Kinabatangan Wildlife Sanctuary (LKWS)
subject: Labuk Bay Proboscis Monkey Sanctuary (LBPMS)
subject: monkey
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Understanding determinants shaping infection risk of endangered wildlife is a major topic in conservation medicine. The proboscis monkey, Nasalis larvatus, an endemic primate flagship species for conservation in Borneo, is endangered through habitat loss, but can still be found in riparian lowland and mangrove forests, and in some protected areas. To assess socioecological and anthropogenic influence on intestinal helminth infections in N. larvatus, 724 fecal samples of harem and bachelor groups, varying in size and the number of juveniles, were collected between June and October 2012 from two study sites in Malaysian Borneo: 634 samples were obtained from groups inhabiting the Lower Kinabatangan Wildlife Sanctuary (LKWS), 90 samples were collected from groups of the Labuk Bay Proboscis Monkey Sanctuary (LBPMS), where monkeys are fed on stationary feeding platforms. Parasite risk was quantified by intestinal helminth prevalence, host parasite species richness (PSR), and eggs per gram feces (epg). Generalized linear mixed effect models were applied to explore whether study site, group type, group size, the number of juveniles per group, and sampling month predict parasite risk. At the LBPMS, prevalence and epg of Trichuris spp., strongylids, and Strongyloides spp. but not Ascaris spp., as well as host PSR were significantly elevated. Only for Strongyloides spp., prevalence showed significant changes between months; at both sites, the beginning rainy season with increased precipitation was linked to higher prevalence, suggesting the external life cycle of Strongyloides spp. to benefit from humidity. Higher prevalence, epgs, and PSR within the LBPMS suggest that anthropogenic factors shape host infection risk more than socioecological factors, most likely via higher re-infection rates and chronic stress. Noninvasive measurement of fecal parasite stages is an important tool for assessing transmission dynamics and infection risks for endangered tropical wildlife. Findings will contribute to healthcare management in nature and in anthropogenically managed environments.
title: On endomorphism and automorphisms of some torsion-free modules
Creators: name: Goldsmith , Brendan
Publisher: name: Technological University of Dublin
Year: 1987

description: The relationship between the endomorphism ring and the automorphism group of an abelian p-group has been extensively investigated. It is known that theautomorphism group need not generate the full endomorphism ring. In this paper we investigate the analagous problem for torsion free modules over a complete discrete valuation ring obtaining similar results.
The filling factor - radius relation for 58 HII regions across the disk of NGC6946
Creators: name: Cedrés, B.
name: Beckman, J. E.
name: Bongiovanni, A.
name: Cepa, J.
name: Ramos, A. Asensio
name: Giammanco, C.
name: Cabrera-Lavers, A.
name: Alfaro, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using the OSIRIS tunable narrow band imager on the 10.4m GTC (La Palma) we have mapped the SAB(rs)cd galaxy NGC 6946 over a 7.3x7.5 square arcminutes field in the emission lines of the [SII]λλ, 6717, 6731 doublet, and in Hα. From these maps we have produced catalogs of the Hαluminosities and effective radii of 557 HII regions across the disk, and derived the [SII] emission line ratios of 370 of these. The Hαobservations were used to derive the mean luminosity-weighted electron densities for the regions of the sample, while the [SII] line ratios allowed us to derive values of the in situ electron densities in the denser zones from which the major fraction of the radiation in these lines is emitted, for 58 of the regions. This is by far the largest data set of its kind for a single galaxy. A classical two phase model is used to derive the filling factors of the regions. We find that although the mean electron density decreases with the square root of the radius of the regions, the in situ density is essentially independent of this radius. Thus the filling factor falls systematically, as the radius and the luminosity of the regions increases, with a power law of exponent -2.23 between filling factor and radius. These measurements should enhance the perspectives for more refined physical models of HII regions.
description: 10 pages, 5 figures, accepted for publication in The Astrophysical Journal Letters
title: On the numerical resolution of hydraulic jumps: Algorithms, boundary conditions, and turbulence models
Creators: name: López Castaño, Santiago
name: Van Hoydonck, Wim
Publisher: name: Flanders Hydraulics
Year: 2024

description: This reports deals with the verification and validation of a newly proposed modification to the k‐? SST model and optimized Volume‐of‐Fluid (VoF) algorithm for the simulation of stable hydraulic jumps in engineering settings. The proposed modifications suggest alternatives to the Scale‐Adaptive‐Simulation (SAS) concept in order to tackle some perceived deficiencies in the original formulation of Menter and Egorov, 2010, for two‐phase incompressible flows incurring in sheared flows. Additional modifications to the proposed turbulence model are suggested in order to reduce spurious generation of turbulence across the interface and close to walls. Results show overall agreement with literature studies regarding the study of hydraulic jumps in sloped channels, including numerical and physical experiments. Furthermore, implicit‐explicit Flux‐Corrected Transport methods are implemented in order to allow the use of dual time‐step discretizations.
description: Title : FH reports. Flanders Hydraulics: Antwerp.
Volume : 20_035_2
Issue :
Pagination : VIII, 31 + 9 p. app.
Carex distans var. neglecta
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C.Dactylon (L.) Pers. Cat. 378. Bis 1320m. l: Vernayaz (Coquoz); Medettaz ob Salvan (idem). - 2: Ob Fully bei Planuit bis 1180 m, bei Chiboz bis 1320 m (Garns); Miege (Becherer); Niederganipel(BechererundSchatzmann);Gampel (Zwicky); Hohtenn (Binz); Naters (J.). - 3: Zwischen dem Bahnhof Charrat-Fully und Saxon auf salzhaltigem Sandboden mit Carex distans var. neglecta und Puccinellia distans eine sehr verlängerte, der var. septentrionalis A. et G. genäherte Form (F., Garns); Niouc (Sulger); unter Visperterminen (Beauverd); Brig, Bahnhof (Zwicky 1949, Becherer 1950). - 3a: Gondo, vor demZollhaus (Becherer).- 4:SüdlichTermengegenOberbielen(Becherer).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Magnetic structure and magnon dispersion in LaSrFeO$_4$
Creators: name: Qureshi, N.
name: Ulbrich, H.
name: Sidis, Y.
name: Cousson, A.
name: Braden, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present elastic and inelastic neutron scattering data on LaSrFeO$_4$. We confirm the known magnetic structure with the magnetic moments lying in the tetragonal basal plane, but contrarily to previous reports our macroscopic and neutron diffraction data do not reveal any additional magnetic phase transition connected to a spin reorientation or to a redistribution of two irreducible presentations. Our inelastic neutron scattering data reveals the magnon dispersion along the main-symmetry directions [0 $ξ$ 0] and [$ξ$ -$ξ$ 0]. The dispersion can be explained within linear spin-wave theory yielding an antiferromagnetic nearest-neighbour interaction parameter $J_{1}=7.4(1)$ meV and a next-nearest neighbour interaction parameter $J_{2}=0.4(1)$ meV. The dispersion is gapped with the out-of-plane anisotropy gap found at $Δ_{out}=5.26(2)$ meV, while evidence is present that the in-plane anisotropy gap lies at lower energies, where it cannot be determined due to limited instrument resolution.
description: 9 pages, 11 figures
Synchronization of a Josephson junction array in terms of global variables
Creators: name: Vlasov, Vladimir
name: Pikovsky, Arkady
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider an array of Josephson junctions with a common LCR-load. Application of the Watanabe-Strogatz approach [Physica D, v. 74, p. 197 (1994)] allows us to formulate the dynamics of the array via the global variables only. For identical junctions this is a finite set of equations, analysis of which reveals the regions of bistability of the synchronous and asynchronous states. For disordered arrays with distributed parameters of the junctions, the problem is formulated as an integro-differential equation for the global variables, here stability of the asynchronous states and the properties of the transition synchrony-asynchrony are established numerically.
Xenophobic Dark Matter
Creators: name: Feng, Jonathan L.
name: Kumar, Jason
name: Sanford, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We consider models of xenophobic dark matter, in which isospin-violating dark matter-nucleon interactions significantly degrade the response of xenon direct detection experiments. For models of near-maximal xenophobia, with neutron-to-proton coupling ratio $f_n / f_p \approx -0.64$, and dark matter mass near 8 GeV, the regions of interest for CoGeNT and CDMS-Si and the region of interest identified by Collar and Fields in CDMS-Ge data can be brought into agreement. This model may be tested in future direct, indirect, and collider searches. Interestingly, because the natural isotope abundance of xenon implies that xenophobia has its limits, we find that this xenophobic model may be probed in the near future by xenon experiments. Near-future data from the LHC and Fermi-LAT may also provide interesting alternative probes of xenophobic dark matter.
description: 15 pages, 4 figures
PARK VISION: INTELLIGENT PARKING MANAGEMENT SYSTEM
Creators: name: YOGINI D BOROLE
name: NILIMA S. WARADE
name: JYOTI YOGESH DESHMUKH
name: JAYASHRI PRASHANT SHINDE
Publisher: name: Zenodo
Year: 2024
Subjects: Convolutional Neural Network, Computation of Images, Shortest Path Method, Smart Parking System, and Parking Spot Recognition.

description: Abstract

Over the past several years, there has been an increase in the number of automobiles in use. Larger parking lots are therefore clearly needed. The current standard techniques for identifying if a slot is occupied in smart car parking lots are no longer appropriate as they require a large number of costly sensors and the region that required observation growing. The purpose of this study is to determine, update, and display the current number of open parking spaces in the parking lot using an efficient, quick, and accurate method. A camera's worth of video was employed as the input medium, and the object identification technique for image processing was Yolov5. By comparing the independently discovered locations of parking lots and parked cars, available parking spots were assessed. The dataset utilized to train and assess the model was the PKLot database. The photographs included in the dataset that corresponded to various weather conditions were used to assess the performance of the suggested model. The model's performance was 90.03% on average. Bright days showed the best performance, and rainy days produced the lowest.
High-precision CoRoT space photometry and fundamental parameter determination of the B2.5V star HD 48977
Creators: name: Thoul, Anne
name: Degroote, Pieter
name: Catala, Claude
name: Aerts, Conny
name: Morel, Thierry
name: Briquet, Maryline
name: Hillen, Michel
name: Raskin, Gert
name: Van Winckel, Hans
name: Auvergne, Michel
name: Baglin, Annie
name: Baudin, Frédéric
name: Michel, Eric
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the CoRoT light curve of the bright B2.5V star HD 48977 observed during a short run of the mission in 2008, as well as a high-resolution spectrum gathered with the HERMES spectrograph at the Mercator telescope. We use several time series analysis tools to explore the nature of the variations present in the light curve. We perform a detailed analysis of the spectrum of the star to determine its fundamental parameters and its element abundances. We find a large number of high-order g-modes, and one rotationally induced frequency. We find stable low-amplitude frequencies in the p-mode regime as well. We conclude that HD 48977 is a new Slowly Pulsating B star with fundamental parameters found to be Teff = 20000 $\pm$ 1000 K and log(g)=4.2 $/pm$ 0.1. The element abundances are similar to those found for other B stars in the solar neighbourhood. HD 48977 was observed during a short run of the CoRoT satellite implying that the frequency precision is insufficient to perform asteroseismic modelling of the star. Nevertheless, we show that a longer time series of this star would be promising for such modelling. Our present study contributes to a detailed mapping of the instability strips of B stars in view of the dominance of g-mode pulsations in the star, several of which occur in the gravito-inertial regime.
description: 7 pages, 7 figures, accepted for publication in Astronomy and Astrophysics
Accuracy estimation of the IfE gravimeters Micro-g LaCoste gPhone-98 and ZLS Burris Gravity Meter B-64
Creators: name: Schilling, Manuel
name: Gitlein, Olga
Publisher: name: Cham : Springer
Year: 2015
Subjects: subject: relative gravimetry
subject: gPhone
subject: ZLS Burris
subject: instrumental accuracy
subject: tidal analysis
subject: Gravimetrie
subject: Gezeitenanalyse
subject: Genauigkeitsuntersuchung
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Presently, modern spring gravimeters are the most flexible, technically simple, and comparatively cheap solution for recordings over extended time periods in contrast to superconducting gravimeters. We investigate the accuracy of the state-of-the-art spring gravimeters Micor-g LaCoste gPhone-98 and ZLS Burris Gravity Meter B-64 of the Institut für Erdmessung (IfE). With both instruments gravity was recorded for periods of several months at five stations with high and low microseismic noise. Simultaneous measurements with both instruments as well as the parallel recording of the ZLS Burris gravimeter with the GWR Instruments Observatory Superconducting Gravimeter OSG-054 in Onsala (Sweden) are investigated. Tidal analysis is used to assess the quality of the time series. Diurnal and semi-diurnal amplitude factors agree at the level of 1 per mille and better from recordings of Burris and OSG gravimeters in Onsala. The final publication is available at Springer via https://doi.org/10.1007/1345_2015_29
Hopf Algebras, Distributive (Laplace) Pairings and Hash Products: A unified approach to tensor product decompositions of group characters
Creators: name: Fauser, Bertfried
name: Jarvis, Peter D.
name: King, Ronald C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16W30, 05E05, 11E57, 43A40

description: We show for bicommutative graded connected Hopf algebras that a certain distributive (Laplace) subgroup of the convolution monoid of 2-cochains parameterizes certain well behaved Hopf algebra deformations. Using the Laplace group, or its Frobenius subgroup, we define higher derived hash products, and develop a general theory to study their main properties. Applying our results to the (universal) bicommutative graded connected Hopf algebra of symmetric functions, we show that classical tensor product and character decompositions, such as those for the general linear group, mixed co- and contravariant or rational characters, orthogonal and symplectic group characters, Thibon and reduced symmetric group characters, are special cases of higher derived hash products. In the Appendix we discuss a relation to formal group laws.
description: 43 pages, uses tikz, many figures
Origin of metallicity in atomic Ag wires on Si(557)
Creators: name: Krieg, U.
name: Lichtenstein, T.
name: Brand, C.
name: Tegenkamp, Christoph
name: Pfnür, Herbert
Publisher: name: Bristol : IOP Publishing Ltd
Year: 2015
Subjects: subject: plasmons in one dimension
subject: wire doping
subject: high resolution electron loss spectroscopy
subject: tunelling microscopy
subject: one-dimensional plasmons
subject: plasmon
subject: Plasmon
subject: eindimensionale Plasmonen
subject: 1D-Plasmonen
subject: Monoschicht
subject: Silber
subject: Ag
subject: Si
subject: Silicium
subject: monolayer
subject: doping
subject: silver
subject: silicon
subject: surface
subject: Plasmon
subject: Dimension 1
subject: Monoschicht
subject: Silber
subject: Silicium
subject: Oberfläche
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We investigated the metallicity of Ag-root 3 ordered atomic wires close to one monolayer (ML) coverage, which are formed on Si(557) via self assembly. For this purpose we combined high resolution electron energy loss spectroscopy with tunneling microscopy. By extending the excess Ag coverage up to 0.6 ML on samples annealed at high temperatures where partial desorption occurs, we demonstrate that one-dimensional metallicity in the Ag-root 3 x root 3 R30 degrees ordered atomic wires on the (111) mini-terraces originates only from Ag atoms in excess of (local) monolayer coverage, which are adsorbed and localized at the highly stepped parts of the Si(557) surface. Thus these Ag atoms act as extrinsic dopants on the atomic scale, causing coverage dependent subband filling and increasing localization as a function of doping concentration. The second layer lattice gas as well as Ag islands on the (111) terraces turn out not to be relevant as dopants. We simulated the peculiar saturation behavior within a modified lattice gas model and give evidence that the preparation dependent saturation of doping is due to changes of average terrace size and step morphology induced by high temperature treatment.
Open data blog for Computational Social Scientists (OLS - 7)
Creators: name: Dutta, Aditi
Publisher: name: Zenodo
Year: 2023
Subjects: Open data
Computational Social Science
Online data
Open Science
OLS-7

description: This is my presentation for the Open Life Science Cohort 7 Graduation. The project is intended to provide with a site for Computational Social Science researchers to know more about open data and share information on the same. They could find valuable and useful resources from here.
Engineering interactions and anyon statistics by multicolor lattice-depth modulations
Creators: name: Cardarelli, Lorenzo
name: Greschner, Sebastian
name: Santos, Luis
Publisher: name: College Park, MD : American Physical Society
Year: 2016
Subjects: subject: Crystal lattices
subject: Hubbard model
subject: Modulation
subject: Correlated hopping
subject: Extended model
subject: Feshbach resonances
subject: Independent control
subject: Lattice models
subject: Nearest-neighbor interactions
subject: Site interaction
subject: Ultracold atoms
subject: Optical lattices
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We show that a multicolor modulation of the depth of an optical lattice allows for a flexible independent control of correlated hopping, occupation-dependent gauge fields, effective on-site interactions without Feshbach resonances, and nearest-neighbor interactions. As a result, the lattice-depth modulation opens the possibility of engineering with minimal experimental complexity a broad class of lattice models in current experiments with ultracold atoms, including Hubbard models with correlated hopping, peculiar extended models, and two-component anyon-Hubbard models. © 2016 American Physical Society.
X-ray Outflows and Super-Eddington Accretion in the Ultraluminous X-ray Source Holmberg IX X-1
Creators: name: Walton, D. J.
name: Miller, J. M.
name: Harrison, F. A.
name: Fabian, A. C.
name: Roberts, T. P.
name: Middleton, M. J.
name: Reis, R. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Studies of X-ray continuum emission and flux variability have not conclusively revealed the nature of ultra-luminous X-ray sources (ULXs) at the high-luminosity end of the distribution (those with Lx > 1e40 erg/s). These are of particular interest because the luminosity requires either super-Eddington accretion onto a black hole of mass ~10 Msun, or more standard accretion onto an intermediate-mass black hole. Super-Eddington accretion models predict strong outflowing winds, making atomic absorption lines a key diagnostic of the nature of extreme ULXs. To search for such features, we have undertaken a long, 500 ks observing campaign on Holmberg IX X-1 with Suzaku. This is the most sensitive dataset in the iron K bandpass for a bright, isolated ULX to date, yet we find no statistically significant atomic features in either emission or absorption; any undetected narrow features must have equivalent widths less than 15-20 eV at 99% confidence. These limits are far below the >150 eV lines expected if observed trends between mass inflow and outflow rates extend into the super-Eddington regime, and in fact rule out the line strengths observed from disk winds in a variety of sub-Eddington black holes. We therefore cannot be viewing the central regions of Holmberg IX X-1 through any substantial column of material, ruling out models of spherical super-Eddington accretion. If Holmberg IX X-1 is a super-Eddington source, any associated outflow must have an anisotropic geometry. Finally, the lack of iron emission suggests that the stellar companion cannot be launching a strong wind, and that Holmberg IX X-1 must primarily accrete via roche-lobe overflow.
description: 5 pages, 3 figures, accepted for publication in ApJL
Hard thermal loops in long wave-length and static external gravitational fields
Creators: name: Francisco, R. R.
name: Frenkel, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study, in the long wave-length and static limits, the structure of the n-point graviton functions at high temperature. Using the gauge and Weyl invariance of the theory, we derive a simple expression for the hard thermal amplitudes in these two limits.
description: 3 pages, 1 figure
Improved Synthesis of Global Irradiance with One-Minute Resolution for PV System Simulations
Creators: name: Hofmann, Martin
name: Riechelmann, Stefan
name: Crisosto, Christian
name: Mubarak, Riyad
name: Seckmeyer, Gunther
Publisher: name: New York : Hindawi Publishing Corporation
Year: 2014
Subjects: subject: Radiation
subject: Classification
subject: Distributions
subject: Temperature
subject: Climate
subject: Algorithm
subject: Probability Density
subject: Wahrscheinlichkeitsdichte
subject: Strahlung
subject: Globalstrahlung
subject: Klassifizierung
subject: Verteilung
subject: Temperatur
subject: Klima
subject: Algorithmus
subject: Photovoltaik
subject: Photovoltaic
subject: Dichte
subject: Globalstrahlung
subject: Verteilung
subject: Temperatur
subject: Klima
subject: Algorithmus
subject: Photovoltaik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: High resolution global irradiance time series are needed for accurate simulations of photovoltaic (PV) systems, since the typical volatile PV power output induced by fast irradiance changes cannot be simulated properly with commonly available hourly averages of global irradiance. We present a two-step algorithm that is capable of synthesizing one-minute global irradiance time series based on hourly averaged datasets. The algorithm is initialized by deriving characteristic transition probability matrices (TPM) for different weather conditions (cloudless, broken clouds and overcast) from a large number of high resolution measurements. Once initialized, the algorithm is location-independent and capable of synthesizing one-minute values based on hourly averaged global irradiance of any desired location. The one-minute time series are derived by discrete-time Markov chains based on a TPM that matches the weather condition of the input dataset. One-minute time series generated with the presented algorithm are compared with measured high resolution data and show a better agreement compared to two existing synthesizing algorithms in terms of temporal variability and characteristic frequency distributions of global irradiance and clearness index values. A comparison based on measurements performed in Lindenberg, Germany, and Carpentras, France, shows a reduction of the frequency distribution root mean square errors of more than 60% compared to the two existing synthesizing algorithms.
The Parallelized Large-Eddy Simulation Model (PALM) version 4.0 for atmospheric and oceanic flows: model formulation, recent developments, and future perspectives
Creators: name: Maronga, Björn
name: Gryschka, Micha
name: Heinze, Rieke
name: Hoffmann, Fabian
name: Kanani-Sühring, Farah
name: Keck, Marius
name: Ketelsen, K.
name: Letzel, M.O.
name: Sühring, Matthias
name: Raasch, Siegfried
Publisher: name: Göttingen : Copernicus
Year: 2015
Subjects: subject: large eddy simulation
subject: large-eddy simulation
subject: LES
subject: PALM
subject: meteorology
subject: Large Eddy Simulation
subject: Turbulente Strömung
subject: Grobstruktursimulation
subject: Meteorlogie
subject: Software
subject: LES
subject: Meteorlogie
subject: Software
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::551 | Geologie, Hydrologie, Meteorologie

description: In this paper we present the current version of the Parallelized Large-Eddy Simulation Model (PALM) whose core has been developed at the Institute of Meteorology and Climatology at Leibniz Universität Hannover (Germany). PALM is a Fortran 95-based 5 code with some Fortran 2003 extensions and has been applied for the simulation of a variety of atmospheric and oceanic boundary layers for more than 15 years. PALM is optimized for use on massively parallel computer architectures and was recently ported to general-purpose graphics processing units. In the present paper we give a detailed description of the current version of the model and its features, such as an embedded 10 Lagrangian cloud model and the possibility to use Cartesian topography. Moreover, we discuss recent model developments and future perspectives for LES applications.