cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Climate change and low flows: A regional impact assessment using simple statistical approaches
Creators: name: Fangmann, Anne
name: Haberlandt, Uwe
Publisher: name: München : European Geosciences Union
Year: 2018
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: The characteristics of low flow periods, primarily their low dynamics in space and time (as opposed to high flows), may allow for prediction using simple statistical dependencies on climatic and regional characteristics without the need to run complex hydrological models. Accordingly, it is hypothesized that climate change impact analysis for low flows via e.g. regression based approaches will yield adequate projections, whilst keeping data requirement, model set up and computation times to a minimum. In this study panel data regression is applied to model a set of low flow indices simultaneously in time and space as a combined function of climatic indices and physiographic catchment descriptors. Study area is the federal state of Lower Saxony in northwestern Germany. For the available streamflow gauges annual low flow indices are derived from daily discharge series. They pose the target variables of the models. Inputs are temporally variable climatic indices, computed from several meteorological variables, and constant physiographic properties. The panel data regression models are set up within a calibration period and validated in a combined split- and cross-validation procedure, allowing the assessment of temporal and spatial model performance. The spatiotemporal models appear to clearly outperform models individually reproducing spatial and temporal effects. The final models are applied to an ensemble of regional climate models in order to assess the future low flow development in the study area.
Analysis of Realized Volatility in Two Trading Sessions of the Japanese Stock Market
Creators: name: Takaishi, Tetsuya
name: Chen, Ting Ting
name: Zheng, Zeyu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We analyze realized volatilities constructed using high-frequency stock data on the Tokyo Stock Exchange. In order to avoid non-trading hours issue in volatility calculations we define two realized volatilities calculated separately in the two trading sessions of the Tokyo Stock Exchange, i.e. morning and afternoon sessions. After calculating the realized volatilities at various sampling frequencies we evaluate the bias from the microstructure noise as a function of sampling frequency. Taking into account of the bias to realized volatility we examine returns standardized by realized volatilities and confirm that price returns on the Tokyo Stock Exchange are described approximately by Gaussian time series with time-varying volatility, i.e. consistent with a mixture of distributions hypothesis.
description: 12 pages, reference corrected
Rhyncaphytoptus megarostris
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhyncaphytoptus
Rhyncaphytoptus megarostris

description: Rhyncaphytoptus megarostris (Keifer, 1938)
 Phyllocoptes megarostris Keifer, 1938: 305–306.
 Rhyncaphytoptus megarostris; Amrine & Stasny, 1994: 278.
 Rhyncaphytoptus megarostris; Baker, et al., 1996: 266.
 Distribution. USA.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on pages 76-77, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Comparison of a radar tracking and station based nowcasting of rainfall
Creators: name: Shehu, Bora
name: Haberlandt, Uwe
Publisher: name: München : European Geosciences Union
Year: 2017
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Radar tracking is a common practice for nowcasting rainfall patterns at the required resolution for urban models. However, due to the discrepancies between radar and gauge capturing technique, fast evolving storms and other sources the forecasted rainfall volumes suffer from high errors. The aim of this study is to compare these forecasted volumes with the ones from a station based forecast in order to understand the benefits or drawbacks of a radar based forecast. The HyRaTrac is a radar tracking model that identifies individual storm cells and their movement by comparing two subsequent radar images. On the other hand, a fuzzy-rule based algorithm is adapted to forecast rainfall volumes at a specific location with prior knowledge of previous time steps and surrounding stations. A set of extreme rainfall events is split in half to train and to validate the performance of the fuzzy-rule based model. The study area is located within the 128 km radius of Hannover radar in Lower Saxony, Germany and the data set constitutes of 80 recording stations in 5 min time steps for the period 2000-2012. For the comparison of the nowcasting performance four extreme events (two convective and two stratiform) are considered and the investigation is focused on three stations inside Hannover city. Continuous (bias and rmse) and categorical (POD, and FAR) criteria are used to evaluate the performance for lead times up to two hours. The results reveal which method is more appropriate for forecasting extreme rainfall events that cause urban pluvial flooding.
Cross helicity and related dynamo
Creators: name: Yokoi, Nobumitsu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The turbulent cross helicity is directly related to the coupling coefficients for the mean vorticity in the electromotive force and for the mean magnetic-field strain in the Reynolds stress tensor. This suggests that the cross-helicity effects are important in the cases where global inhomogeneous flow and magnetic-field structures are present. Since such large-scale structures are ubiquitous in geo/astrophysical phenomena, the cross-helicity effect is expected to play an important role in geo/astrophysical flows. In the presence of turbulent cross helicity, the mean vortical motion contributes to the turbulent electromotive force. Magnetic-field generation due to this effect is called the cross-helicity dynamo. Several features of the cross-helicity dynamo are introduced. Unlike the case in the helicity or $α$ effect, where ${\bf{J}}$ is aligned with ${\bf{B}}$ in the turbulent electromotive force, we in general have a finite mean-field Lorentz force ${\bf{J}} \times {\bf{B}}$ in the cross-helicity dynamo. This gives a distinguished feature of the cross-helicity effect. By considering the effects of cross helicity in the momentum equation, we see several interesting consequences of the effect. Turbulent cross helicity coupled with the mean magnetic shear reduces the effect of turbulent or eddy viscosity. Flow induction is an important consequence of this effect. One key issue in the cross-helicity dynamo is to examine how and how much cross helicity can be present in turbulence. On the basis of the cross-helicity transport equation, its production mechanisms are discussed. Some recent developments in numerical validation of the basic notion of the cross-helicity dynamo are also presented.
description: Open Access: http://www.tandfonline.com/doi/abs/10.1080/03091929.2012.754022
Comparison of flood regionalisation techniques in Lower Saxony
Creators: name: Plötner, Stefan
name: Haberlandt, Uwe
Publisher: name: München : European Geosciences Union
Year: 2016
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: The index-flood method has become the standard method for peak flow regionalisation of given return periods at ungauged basins. Moreover grouping stations into regions of homogeneous flood characteristics increases the sample size and thus reduces the uncertainty of estimated peak flows even at gauged basins. At this context, this study investigates the performance of the index-flood method with regards to other regionalisation techniques and evaluates the influence of station density and data quality on the performance of the index-flood method. For this purpose 338 runoff stations in Lower Saxony with observed monthly peak flows and record lengths of annual peak flows between 10 and 75 years are analysed. Catchment descriptors of topography, soil, vegetation and climate are derived to group them into homogeneous regions. The regions are separated using 5 classification methods with 2 to 40 classes for selected catchment descriptors. The most suitable catchment descriptors are selected by their impact on classifying the mean annual peak flow and the variance of annual peak flows using random forest. Muliple linear regression, ordinary and external drift kriging, the standard and an extended index-flood method are compared with the at-site estimation as reference using cross-validation. Three station scenarios based on e.g. record length, known station specific experience and hydrological catchment complexity are used to evaluate the influence of station density and quality on the performance of the index-flood method. The results show the applicability of the index-flood method in Lower Saxony and the benefit of using regional samples for more robust estimations. Combining the index-flood method and geostatistics can improve the estimation of peak flows. The performance of the index-flood method is affected by the used sample respectively the selection of stations.
An Algorithm for Finding Convex Hulls of Planar Point Sets
Creators: name: Mei, Gang
name: Tipper, John C.
name: Xu, Nengxiong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: This paper presents an alternate choice of computing the convex hulls (CHs) for planar point sets. We firstly discard the interior points and then sort the remaining vertices by x- / y- coordinates separately, and later create a group ofquadrilaterals (e-Quads) recursively according to the sequences ofthe sorted lists of points. Finally, the desired CH is built based on a simple polygon derived from all e-Quads. Besides the preprocessing for original planar point sets, this algorithm has another mechanism of discarding interior point when form e-Quads and assemble the simple polygon. Compared with three popular CH algorithms, the proposed algorithm can generate CHs faster thanthe three but has a penalty in space cost.
description: Proceedings of IEEE Conference, ICCSNT 2012, in Press
Rhyncaphytoptus nigrans Flechtmann & Davis 1971
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhyncaphytoptus
Rhyncaphytoptus nigrans

description: Rhyncaphytoptus nigrans Flechtmann & Davis, 1971
 Rhyncaphytoptus nigrans Flechtmann & Davis, 1971: 8–9.
 Rhyncaphytoptus nigrans; Amrine & Stasny, 1994: 278.
 Rhyncaphytoptus nigrans; Baker, et al., 1996: 266.
 Host. Quercus nigra (Fagaceae).
 Relation to host. Vagrant.
 Distribution. USA.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 77, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Consistency and impact of mixed receiver antenna phase centre models in regional GNSS networks
Creators: name: Kersten, Tobias
name: Kröger, Johannes
name: Breva, Yannick
name: Schön, Steffen
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: GPS/GNSS antennas
subject: regional GNSS networks
subject: antenna calibration
subject: carrier phase centre variations
subject: GPS/GNSS Antennen
subject: regionale GNSS Netze
subject: Antennenkalibrierung
subject: Trägerphasenvariationen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: The Institut für Erdmessung (IfE) at the Leibniz University Hannover calibrates GNSS antennas determined by the well known robot based concept in the field. Our group has recently improved the calibration procedure to support absolute receiver antenna calibrations for all GNSS frequencies (GPS L1/L2/L5, GLONASS L1/L2 and Galileo E1/E5). To fully use the advantage of multi GNSS processing capabilities for absolute and relative precise positioning, accurate and consistent receiver antenna calibration patterns of ground stations are required. Currently, in IGS and EPN they are available by chamber calibration method for some antennas. However, systematic and sometimes significant differences exist between both approaches (field robot and chamber) that have to be studied in detail to identify the causes and to fix these issues. In this contribution, we present first robot based multi GNSS patterns from IfE. Furthermore, a study is performed, to show the impact from the observation domain (differences of antenna phase centre patterns) to the parameter domain (position, troposphere, ambiguities). In this study, we used reference stations from the EPN network which provide individual antenna patterns obtained from both approaches (field robot and chamber). Baselines of lengths ranging from 150-600km and one of 1670km are analysed. We found that on the one hand, differences between both pattern sets do not met the proposed "1mm-rule-of-thumb" in the most of studied cases. On the other hand, we show that in cases of consistent antenna pattern sets no significant differences in the parameter domain are obtained. However, mixing patterns from different approaches implies deviations of up to 1cm (in one case up to 2cm) mostly in the topocentric up component. These differences are directly aligned to the differences in the antenna pattern.
Low temperature transport on surface conducting diamond
Creators: name: Edmonds, Mark T.
name: van Beveren, Laurens H. Willems
name: Ganesan, Kumar
name: Eikenberg, Nina
name: Cervenka, Jiri
name: Prawer, Steven
name: Ley, Lothar
name: Hamilton, Alex R.
name: Pakes, Christopher I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magneto-transport measurements were performed on surface conducting hydrogen-terminated diamond (100) hall bars at temperatures between 0.1-5 K in magnetic fields up to 8T.
description: 2 pages Optoelectronic and Microelectronic Materials & Devices (COMMAD), 2012 Conference
Sedum atratum Fries
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: 392. H. atratum Fries alpinum-murorum. Cat. 237. A. Atratum (Fries) Z. (Peratratum Z.) 4. Ssp. atratum (Fries) Z. (ssp.dolichaetum [A.-T.] Z,ssp.eu-atratum Z.) - 3:Verbreitet auf ^el^, Simplonplateau und den umliegenden Höhen,bis etwa2400m.- 3a:Sirwolten (Wolf); Hohlicht (idem); Hohbiel (Chenevard); Alpien(idem). -4:Riederalp(nach Z.);Eggishorn (Chenevard); Binntal (Favrat); Blitzinger Alp und Selkingertal (J.); Eginental-Nufenenpass vielfach (Lagger, Favrat, E. Steiger); Oberwald-Grimsel (Z.); Gerental (Favrat); Maienwang (Favrat, Bernoulli); Furkastrasse ob Gletsch(Z.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Continuous Navigation of an Inland Vessel with a Synthetic GNSS Antenna
Creators: name: Kersten, Tobias
name: Ren, Le
name: Schön, Steffen
Publisher: name: Bonn : DGON
Year: 2018
Subjects: subject: inland vessel navigation
subject: GPS/GNSS antennas
subject: navigation
subject: GPS/GNSS Antennen
subject: Ortung
subject: Navigation
subject: Schiffsnavigation
subject: Binnenschiffahrt
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: This paper describes a concept to obtain a continuous navigation and position solution of inland vessels based on a multi-GNSS antenna system. Also known as, “Virtual Receiver” we utilize this approach as an alternative method with respect to a common dead reckoning procedure. Such an approach strengthens the geometry of visible GNSS satellites immediatelyby up to 50%. At the same time, dilution of precision values improve by up to 40%. Hence, continuous navigation solution under difficult and challenging environmental conditions improves or is even possible. Specific experiments, obtained on a trip from Hannover westward on the Mittelland Canal with the inland vessel “MS Jenny” prove that various quality measures as well as the noise of the position estimates reduce significantly by up to 0.4 m. The position availability for code based navigation reaches 94.5% w.r.t classical single point positioning with 77%.
Revisiting the Faddeev-Skyrme Model and Hopf Solitons
Creators: name: Gorsky, A.
name: Shifman, M.
name: Yung, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We observe that the Faddeev-Skyrme model emerges as a low-energy limit of scalar QED with two charged scalar fields and a selfinteraction potential of a special form (inspired by supersymmetric QCD). Then we discuss possible Hopf solitons of the "twisted-toroidal" type.
description: 20 pp., 3 figures; v.2: Two references added; v.3 An extra reference and two brief comments added
Comparison of Additive Manufacturing techniques regarding mechanical and optical properties
Creators: name: Leuteritz, Georg
name: Lippert, René Bastian
name: Rettschlag, Katharina
name: Lachmayer, Roland
Publisher: name: Erlangen : Deutsche Gesellschaft für angewandte Optik
Year: 2018
Subjects: subject: Additive Manufacturing
subject: optical components
subject: Optomechanik
subject: Optische Komponenten
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: This article examines whether optical and mechanical components can be additively manufactured with net shape properties. Furthermore various Additive Manufacturing techniques are investigated regarding the suitability for an integrated process. Hence, the possibility of producing multimaterial components and optomechanical systems without the necessity for assembly and adjustment is evaluated.
Melting of graphene clusters
Creators: name: Singh, Sandeep Kumar
name: Neek-Amal, M.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Density-functional tight-binding and classical molecular dynamics simulations are used to investigate the structural deformations and melting of planar carbon nano-clusters $C_{N}$ with N=2-55. The minimum energy configurations for different clusters are used as starting configuration for the study of the temperature effects on the bond breaking/rotation in carbon lines (N$
Rhyncaphytoptus oreius Keifer 1975
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhyncaphytoptus
Rhyncaphytoptus oreius

description: Rhyncaphytoptus oreius Keifer, 1975
 Rhyncaphytoptus oreius Keifer, 1975b: 5–6.
 Rhyncaphytoptus oreius; Amrine & Stasny, 1994: 278.
 Rhyncaphytoptus oreius; Baker, et al., 1996: 270.
 Host. Quercus vaccinifolia (Fagaceae).
 Relation to host. Vagrant.
 Distribution. USA.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 77, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Comparison of the effect of predicted climate change on two agricultural pest-parasitoid systems
Creators: name: Hemerik, Lia
name: Gebauer, Konstanze
name: Meyhöfer, Rainer
Publisher: name: Amsterdam : Elsevier
Year: 2015
Subjects: subject: temperature-dependent model
subject: INSIM
subject: development
subject: climate change
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: In insects, developmental and reproductive rates are temperature-dependent and species-specific. Therefore, the effects of climatic changes can be different for host and parasitoid species, thus changing host-parasitoid population dynamics. Within the research co-operation KLIFF (www.kliff-niedersachsen.de) we investigated the impact of climate change on selected vegetable pests and their natural enemies in Lower Saxony, Germany. As model organism we selected two important agricultural pests, Brevicoryne brassicae and Aleyrodes proletella, and their respective parasitoids, Diaeretiella rapae and Encarsia tricolor. To model the impact of predicted climatic changes on pest-parasitoid interactions age-structured simulation models were developed in INSIM1 estimating changes in population size for each species during the course of a year. Based on temperature data simulated by the climate model REMO (MPI, Hamburg, Germany) the parameters were estimated for two future time periods, 2021-2050 and 2071-2100, and compared to parameters estimated for a reference time period (1971-2000). The relative changes in maximum population size and the occurrence of population peaks for each species were analysed for the Lower Saxony area to investigate regional differences. The simulations incorporate the interactions that occur naturally between the species and allow a comparison of the impact of climate change on pest-parasitoid interactions between the time periods.
title: Workshop Report: Introduction and Overview of the ROAM (RAFOS Ocean Acoustic Monitoring) Approach to Marine Tracking
titleType: Other
Creators: name: United States. National Marine Fisheries Service Northeast Fisheries Science Center (U.S.)
Publisher: name: United States. National Marine Fisheries Service Northeast Fisheries Science Center (U.S.)
Year: 2019

description: Northeast Fisheries Science Center reference document ; 19-15
Analytical determination of the two-body gravitational interaction potential at the 4th post-Newtonian approximation
Creators: name: Bini, Donato
name: Damour, Thibault
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We complete the analytical determination, at the 4th post-Newtonian approximation, of the main radial potential describing the gravitational interaction of two bodies within the effective one-body formalism. The (non logarithmic) coefficient a_5 (nu) measuring this 4th post-Newtonian interaction potential is found to be linear in the symmetric mass ratio nu. Its nu-independent part a_5 (0) is obtained by an analytical gravitational self-force calculation that unambiguously resolves the formal infrared divergencies which currently impede its direct post-Newtonian calculation. Its nu-linear part a_5 (nu) - a_5 (0) is deduced from recent results of Jaranowski and Schäfer, and is found to be significantly negative.
description: 6 pages, no figures
Rhyncaphytoptus redwayensis Keifer 1979
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhyncaphytoptus
Rhyncaphytoptus redwayensis

description: Rhyncaphytoptus redwayensis Keifer, 1979
 Rhyncaphytoptus redwayensis Keifer, 1979: 3–4.
 Rhyncaphytoptus redwayensis; Amrine & Stasny, 1994: 279.
 Rhyncaphytoptus redwayensis; Baker, et al., 1996: 262.
 Host. Quercus garryana (Fagaceae).
 Relation to host. Vagrant.
 Distribution. USA.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 80, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
The Monitor Project: Stellar rotation at 13~Myr: I. A photometric monitoring survey of the young open cluster h~Per
Creators: name: Moraux, E.
name: Artemenko, S.
name: Bouvier, J.
name: Irwin, J.
name: Ibrahimov, M.
name: Magakian, T.
name: Grankin, K.
name: Nikogossian, E.
name: Cardoso, C.
name: Hodgkin, S.
name: Aigrain, S.
name: Movsessian, T. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We aim at constraining the angular momentum evolution of low mass stars by measuring their rotation rates when they begin to evolve freely towards the ZAMS, i.e. after the disk accretion phase has stopped. We conducted a multi-site photometric monitoring of the young open cluster h Persei that has an age of ~13 Myr. The observations were done in the I-band using 4 different telescopes and the variability study is sensitive to periods from less than 0.2 day to 20 days. Rotation periods are derived for 586 candidate cluster members over the mass range 0.4<=M/Msun<=1.4. The rotation period distribution indicates a sligthly higher fraction of fast rotators for the lower mass objects, although the lower and upper envelopes of the rotation period distribution, located respectively at ~0.2-0.3d and ~10d, are remarkably flat over the whole mass range. We combine this period distribution with previous results obtained in younger and older clusters to model the angular momentum evolution of low mass stars during the PMS. The h Per cluster provides the first statistically robust estimate of the rotational period distribution of solar-type and lower mass stars at the end of the PMS accretion phase (>10 Myr). The results are consistent with models that assume significant core-envelope decoupling during the angular momentum evolution to the ZAMS.
description: 39 pages, 19 figures, light curves in appendix, 1 long table
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 10 (37)]
Creators: name: Lantelmus De Concorezo
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1238
Subjects: subject: Sonstige weltliche Aussteller
subject: Testament
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Lantelmus de Concorezo verfasst sein Testament.
Controlling the electric-field of few-cycle laser pulses on the cycle-scale
Creators: name: Rausch, Stefan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Few-cycle Ti:sapphire laser oscillators
subject: carrier-envelope-offset phase stabilization
subject: octave-spanning pulse shaping
subject: few-cycle field synthesis
subject: Wenige-Zyklen-Pulse
subject: Titan:Saphir-Laser-Oszillatoren
subject: Träger-Einhüllenden-Phase
subject: oktavbreite Pulsformung
subject: Wenige-Zyklen-Feld-Synthese
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
A Hybrid Approach for Optimizing Planar Triangular Meshes
Creators: name: Mei, Gang
name: Tipper, John C.
name: Xu, Nengxiong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: Modified Direct Method (MDM) is an iterative scheme based on Jacobi iterations for smoothing planar meshes [4]. The basic idea behind MDM is to make any triangular element be as close to an equilateral triangle as possible. Basedon the MDM, a length-weighted MDM is proposed and then combined with edge swapping. In length-weighted MDM, weights of each neighboring node of a smoothed node are determined by the length of its opposite edge. Also, the MDM, Laplacian smoothing and length-weighted MDM are all combined with edge swapping, and then implemented and compared on both structured and unstructured triangular meshes. Examples show that length-weighted MDM is better than the MDM and Laplacian smoothing for structured mesh but worse for unstructured mesh. The hybrid approach of combining length-weighted MDM and edge swapping is much better and can obtain more even optimized meshes than other two hybrid approaches.
description: Proceedings of IEEE Conference, ICCSNT 2012, in Press
Crepis schroeterianum Z.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. Schroeterianum Z. Ssp. Schroeterianum Z. (ssp. eu-Schroeterianum Z.) - 4:Eginental(Z.);Maienwang(Fav-3. rat, Bernoulli, Kneucker u. a.); Tiefengletsch-Furka (Z.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Contributions to the development of oxygen-transporting materials as ceramic membranes for gas separation
Creators: name: Klande, Tobias
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Mixed ionic electronic conductors
subject: oxygen-transporting materials
subject: carbon dioxide
subject: Gemischte Ionen- und Elektronenleiter
subject: sauerstofftransportierende Materialien
subject: Kohlenstoffdioxid
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Topological aspects of an exactly solvable spin chain
Creators: name: Saket, Abhinav
name: Hassan, S. R.
name: Shankar, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyse a spin-1/2 chain with two-spin interactions which shown to exactly solvable by Lieb, Schultz and Mattis. We show that the model can be viewed as a generalised Kitaev model that is analytically solvable for all defect sectors. We present an alternate proof that the defect free sector is the ground state, which is valid for a larger parameter range. We show that the defect sectors have degenerate ground states corresponding to unpaired Majorana fermion modes and that the degeneracy is topologically protected against disorder in the spin-spin couplings. The unpaired Majorana fermions can be manipulated by tuning the model parameters and can hence be used for topological quantum computation.
Rhyncaphytoptus rubrifoliae Keifer 1959
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhyncaphytoptus
Rhyncaphytoptus rubrifoliae

description: Rhyncaphytoptus rubrifoliae Keifer, 1959
 Rhyncaphytoptus rubrifoliae Keifer, 1959a: 656.
 Rhyncaphytoptus rubrifoliae; Amrine & Stasny, 1994: 279.
 Rhyncaphytoptus rubrifoliae; Baker, et al., 1996: 270.
 Host. Quercus rubra (Fagaceae).
 Relation to host. Vagrant.
 Distribution. USA.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 80, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
title: Du sexe génital au sexe subjectif ou les reconfigurations du dimorphisme sexuel
Creators: name: Martin, Hélène
name: Bendjama, Rebecca
name: Bessette-Viens, Raphaëlle
Publisher: name: Éditions HETSL
Year: 2019

description: Chapitre 3 de: H. Martin & M. Roca i Escoda (dir.), Sexuer le corps. Huit études sur des pratiques médicales d'hier et d'aujourd'hui (pp. 51-67), Lausanne : Éditions HETSL.
Counting statistics of electron transfer in a single quantum dot
Creators: name: Sethubalasubramanian, Nandhavel
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Factorial cumulants
subject: electron interactions
subject: electron correlations
subject: Faktorielle Kumulanten
subject: Elektron-Wechselwirkung
subject: Elektronenkorrelationen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
title: Le jeu de l'amour et du déterminisme : compréhensions expertes et profanes du désir des femmes
Creators: name: Vuille, Marilène
Publisher: name: Éditions HETSL
Year: 2019

description: Chapitre 5 de: H. Martin & M. Roca i Escoda (dir.), Sexuer le corps. Huit études sur des pratiques médicales d'hier et d'aujourd'hui (pp. 83-99), Lausanne : Éditions HETSL.
Contributions to the selection and implementation of standard software for CRM and electronic invoicing
Creators: name: Kosch, Lubov
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Customer relationship management
subject: system selection
subject: electronic invoice processes
subject: structural equation modeling
subject: DeLone and McLean IS success model
subject: risk management
subject: maturity model
subject: process model
subject: Systemauswahl
subject: elektronische Rechnungsprozesse
subject: Strukturgleichungsmodellierung
subject: DeLone und McLean IS-Erfolgsmodell
subject: Risikomanagement
subject: Reifegradmodell
subject: Vorgehensmodell
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: [no abstract]
Scoliquadracus longipetiolatus Wei, Wang & Li 2009
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Actinedida
Diptilomiopidae
Scoliquadracus
Scoliquadracus longipetiolatus

description: Scoliquadracus longipetiolatus Wei, Wang & Li, 2009
 Scoliquadracus longipetiolatus Wei, Wang & Li, 2009: 60–61.
 Host. Fagus longipetiolata (Fagaceae).
 Relation to host. Vagrant.
 Distribution. China (Guangxi).
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 81, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Cooperation in environmental protection : the economics of green trade, market-based instruments and community involvement
Creators: name: Röttgers, Dirk
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Market-based instruments
subject: bioenergy
subject: clean development mechanism
subject: Africa
subject: offset mechanism
subject: ecosystem service
subject: economic experiment
subject: Marktbasierte Instrumente
subject: Bioenergie
subject: Afrika
subject: Ausgleichshandel
subject: Ökosystemleistung
subject: ökonomische Experimente
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: [no abstract]
Neutron Transverse-Momentum Distributions and Polarized 3He within Light-Front Hamiltonian Dynamics
Creators: name: Pace, Emanuele
name: Salme', Giovanni
name: Scopetta, Sergio
name: Del Dotto, Alessio
name: Rinaldi, Matteo
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The possibility to extract the quark transverse-momentum distributions in the neutron from semi-inclusive deep inelastic electron scattering off polarized 3He is illustrated through an impulse approximation analysis in the Bjorken limit. The generalization of the analysis at finite momentum transfers in a Poincare' covariant framework is outlined. The definition of the light-front spin-dependent spectral function of a J=1/2 system allows us to show that within the light-front dynamics only three of the six leading twist T-even transverse-momentum distributions are independent.
description: 4 pages, 2 figures, Presented at the 20th International IUPAP Conference on Few-Body Problems in Physics, 20 - 25 August, 2012, Fukuoka, Japan
Coupling Poisson rectangular pulse and multiplicative microcanonical random cascade models to generate sub-daily precipitation timeseries
Creators: name: Pohle, Ina
name: Niebisch, Michael
name: Müller, Hannes
name: Schümberg, Sabine
name: Zha, Tingting
name: Maurer, Thomas
name: Hinz, Christoph
Publisher: name: Amsterdam : Elsevier
Year: 2018
Subjects: subject: Rainfall generator
subject: Disaggregation
subject: Precipitation event
subject: Autocorrelation
subject: Within-event variability
subject: Intra-event intermittency
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: To simulate the impacts of within-storm rainfall variabilities on fast hydrological processes, long precipitation time series with high temporal resolution are required. Due to limited availability of observed data such time series are typically obtained from stochastic models. However, most existing rainfall models are limited in their ability to conserve rainfall event statistics which are relevant for hydrological processes. Poisson rectangular pulse models are widely applied to generate long time series of alternating precipitation events durations and mean intensities as well as interstorm period durations. Multiplicative microcanonical random cascade (MRC) models are used to disaggregate precipitation time series from coarse to fine temporal resolution. To overcome the inconsistencies between the temporal structure of the Poisson rectangular pulse model and the MRC model, we developed a new coupling approach by introducing two modifications to the MRC model. These modifications comprise (a) a modified cascade model (“constrained cascade”) which preserves the event durations generated by the Poisson rectangular model by constraining the first and last interval of a precipitation event to contain precipitation and (b) continuous sigmoid functions of the multiplicative weights to consider the scale-dependency in the disaggregation of precipitation events of different durations. The constrained cascade model was evaluated in its ability to disaggregate observed precipitation events in comparison to existing MRC models. For that, we used a 20-year record of hourly precipitation at six stations across Germany. The constrained cascade model showed a pronounced better agreement with the observed data in terms of both the temporal pattern of the precipitation time series (e.g. the dry and wet spell durations and autocorrelations) and event characteristics (e.g. intra-event intermittency and intensity fluctuation within events). The constrained cascade model also slightly outperformed the other MRC models with respect to the intensity-frequency relationship. To assess the performance of the coupled Poisson rectangular pulse and constrained cascade model, precipitation events were stochastically generated by the Poisson rectangular pulse model and then disaggregated by the constrained cascade model. We found that the coupled model performs satisfactorily in terms of the temporal pattern of the precipitation time series, event characteristics and the intensity-frequency relationship.
Boczekella fabris Xue & Hong 2006
Creators: name: XUE, XIAO-FENG
name: GUO, JING-FENG
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Phytoptidae
Boczekella
Boczekella fabris

description: Boczekella fabris Xue & Hong, 2006
(Fig. 2)
 Boczekella fabris Xue & Hong, 2006: 6–8.
 Material examined. 2 males (slide number NJAUAcariEriH27), from Larix gmelinii (Rupr.) Rupr. (Pinaceae), Huzhong District, Heilongjiang Province, P. R. China, 52°01'44''N, 123°35'44''E, elevation 512m, 22 July 2008, coll. Xiao-Feng Xue, Zhen Wang & Zi-Wei Song; 6 females (slide number NJAUAcariEri601), from Larix gmelinii (Rupr.) Rupr. (Pinaceae), Jingbo Lake, Mudanjiang City, Heilongjiang Province, P. R. China, 44°02'33''N, 128°56'35''E, elevation 376m, 29 June 2006, coll. Xiao-Feng Xue & Zi-Wei Song; 6 females (slide number NJAUAcariEri644), from Larix gmelinii (Rupr.) Rupr. (Pinaceae), Jilin City, Jilin Province, P. R. China, 43°57'21''N, 126°57'56''E, 2 July 2006, coll. Xiao-Feng Xue & Zi-Wei Song.
 Hosts. Abies fabri (Mast.) Craib, Larix gmelinii (Rupr.) Rupr. (Pinaceae).
 Relation to host. Vagrant.
description: Published as part of XUE, XIAO-FENG, GUO, JING-FENG & HONG, XIAO-YUE, 2013,
  Eriophyoid mites from Northeast China (Acari: Eriophyoidea)  , pp. 1-123 in Zootaxa 3689 (1) on page 9, DOI: 10.11646/zootaxa.3689.1.1, http://zenodo.org/record/6031216
CPES Testing with mosaik: Co-Simulation Planning, Execution and Analysis
Creators: name: Steinbrink, Cornelius
name: Blank-Babazadeh, Marita
name: El-Ama, André
name: Holly, Stefanie
name: Bengt, Lüers
name: Nebel-Wenner, Marvin
name: Ramírez Acosta, Rebeca P.
name: Raub, Thomas
name: Schwarz, Jan Sören
name: Stark, Sanja
name: Astrid, Nieße
name: Lehnhoff, Sebastian
Publisher: name: Basel : MDPI
Year: 2019
Subjects: subject: Testing
subject: Co-simulation
subject: MOSAIK
subject: Multi-agent Systems
subject: Simulation planning
subject: Uncertainty quantification
subject: Dewey Decimal Classification::600 | Technik

description: The complex nature of cyber-physical energy systems (CPES) makes systematic testing of new technologies for these setups challenging. Co-simulation has been identified as an efficient and flexible test approach that allows consideration of interdisciplinary dynamic interactions. However, basic coupling of simulation models alone fails to account for many of the challenges of simulation-based multi-domain testing such as expert collaboration in test planning. This paper illustrates an extended CPES test environment based on the co-simulation framework mosaik. The environment contains capabilities for simulation planning, uncertainty quantification and the development of multi-agent systems. An application case involving virtual power plant control is used to demonstrate the platform’s features. Future extensibility of the highly modular test environment is outlined.
title: La sexologie américaine made in Switzerland : naissance d'une clinique des troubles sexuels (Lausanne, 1950-1980)
Creators: name: Kraus, Cynthia
name: Mottier, Véronique
name: Barras, Vincent
Publisher: name: Éditions HETSL
Year: 2019

description: Chapitre 4 de: H. Martin & M. Roca i Escoda (dir.), Sexuer le corps. Huit études sur des pratiques médicales d'hier et d'aujourd'hui (pp. 69-81), Lausanne : Éditions HETSL.
Properties of the defect modes in 1D lossy photonic crystals containing two types of negative-index-material defects
Creators: name: Aghajamali, Alireza
name: Hayati, Mozhgan
name: Wu, Chien-Jang
name: Barati, Mahmood
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, the characteristic matrix method is employed to theoretically investigate the propagation of electromagnetic waves through one-dimensional defective lossy photonic crystals (PCs) composed of negative index materials (NIMs) and positive index materials (PIMs). We consider symmetric and asymmetric geometric structures with two different types of NIM defect layers at the center of the structure. The effects of the polarization and the angle of incidence on the defect modes in the transmission spectra of both structures are investigated. The results show that the number of the defect modes within the photonic band gap (PBG) depends on the type of the NIM defect layer and is independent of the geometrical structure. Moreover, it is shown that the defect mode frequency increases as the angle of incidence increases. This property is also independent of the geometry of the structure. The results can lead to designing new types of narrowband and multichannel transmission filters.
description: 16 pages, 11 figures. arXiv admin note: text overlap with arXiv:1301.0353
Developing a Cybernetic Model of Interdepartmental Logistic Interactions in SME
Creators: name: Mayer, Jonas
name: Seitz, Kai-Frederic
name: Kuprat, Thorben
Publisher: name: Leibniz Universität Hannover
Year: 2014
Subjects: subject: Department-specific actuating and control variables
subject: interdepartmental interactions
subject: cybernetic model
subject: logistic objectives
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: In today’s competitive environment production’s logistic objectives such as ‘delivery reliability’ and ‘delivery time’ and distribution’s logistic objectives such as ‘service level’ and ‘delivery delay’ are attributed great importance. Especially for small and mid-sized enterprises (SME) attaining these objectives pose a key challenge. Within this context, one of the difficulties is that interactions between departments within the enterprise and their specific objectives are insufficiently taken into account and aligned. Interdepartmental independencies along with contradicting targets set within the different departments result in enterprises having sub-optimal logistic performance capability. This paper presents a research project which will systematically describe the interactions between departments and convert them into a quantifiable form.
Cost Sensitive Analysis of Production Logistics Measures : A Decision Making Support System for Evaluating Measures in the Production
Creators: name: Grigutsch, Michael
name: Nyhuis, Peter
Publisher: name: Leibniz Universität Hannover
Year: 2013
Subjects: subject: Logistic Operating Curves
subject: Transfer Functions
subject: Production Logistics
subject: Storages Echelon
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Due to the volatile global economy, enterprises are increasingly focusing on logistics. By investing in suitable measures a company can increase their logistic performance and assert themselves over the competition. However, enterprises are also faced with the challenge of investing available capital for maximum profits. In order to be able to create an informed and quantifiably comprehensible basis for a decision, enterprises need a suitable model for logistically and monetarily evaluating measures in production. Previously, within the frame of Collaborate Research Centre 489 (SFB 489) at the Institute for Production Systems and Logistics, (IFA) a Logistic Information System was developed specifically for providing enterprises in the forging industry with support when making decisions. Based on this research, a new initiative referred to as ‘Transfer Project T7’, aims to develop a universal approach for logistically and monetarily evaluating production measures. This paper focuses on the structural measure echelon storage and their impact on the entire production system.
Deformed N = 8 Supersymmetric Mechanics
Creators: name: Ivanov, Evgeny
name: Lechtenfeld, Olaf
name: Sidorov, Stepan
Publisher: name: Basel : MDPI
Year: 2019
Subjects: subject: supersymmetry
subject: superfields
subject: supersymmetric quantum mechanics
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We give a brief review of deformed N =8 supersymmetric mechanics as a generalization of SU(2|1) mechanics. It is based on the worldline realizations of the supergroups SU(2|2) and SU(4|1) in the appropriate N =8, d=1 superspaces. The corresponding models are deformations of the standard N =8 mechanics models by a mass parameter m.