cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Nonlocal Operator Method for Partial Differential Equations with Application to Electromagnetic Waveguide Problem
Creators: name: Rabczuk, Timon
name: Ren, Huilong
name: Zhuang, Xiaoying
Publisher: name: Henderson : Tech Science Press
Year: 2019
Subjects: subject: Nonlocal operator method
subject: Variational principle
subject: Nonlocal operators
subject: Hourglass mode
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme
subject: Dewey Decimal Classification::600 | Technik

description: A novel nonlocal operator theory based on the variational principle is proposed for the solution of partial differential equations. Common differential operators as well as the variational forms are defined within the context of nonlocal operators. The present nonlocal formulation allows the assembling of the tangent stiffness matrix with ease and simplicity, which is necessary for the eigenvalue analysis such as the waveguide problem. The present formulation is applied to solve the differential electromagnetic vector wave equations based on electric fields. The governing equations are converted into nonlocal integral form. An hourglass energy functional is introduced for the elimination of zero-energy modes. Finally, the proposed method is validated by testing three classical benchmark problems.
Competition between $T$=1 and $T$=0 pairing in $pf$-shell nuclei with $N=Z$
Creators: name: Sagawa, H.
name: Tanimura, Y.
name: Hagino, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The pairing correlation energy for two-nucleon configurations with the spin-parity and isospin of $J^π=0^+$, $T$=1 and $J^π=1^+$, $T$=0 are calculated with $T$=1 and $T$=0 pairing interactions, respectively. To this end, we consider the $(1f2p)$ shell model space, including single-particle angular momenta of $l=3$ and $l=1$. It is pointed out that a two-body matrix element of the spin-triplet $T$=0 pairing is weakened substantially for the $1f$ orbits, even though the pairing strength is much larger than that for the spin-singlet $T$=1 pairing interaction. In contrast, the spin-triplet pairing correlations overcome the spin-singlet pairing correlations for the $2p$ configuration, for which the spin-orbit splitting is smaller than that for the $1f$ configurations, if the strength for the T=0 pairing is larger than that for the T=1 pairing by 50% or more. Using the Hartree-Fock wave functions, it is also pointed out that the mismatch of proton and neutron radial wave functions is at most a few % level, even if the Fermi energies are largely different in the proton and neutron mean-field potentials. These results imply that the configuration with $J^π=0^+$, $T$=1 is likely in the ground state of odd-odd $pf$ shell nuclei even under the influence of the strong spin-triplet $T$=0 pairing, except at the middle of the $pf$ shell, in which the odd proton and neutron may occupy the $2p$ orbits. These results are consistent with the observed spin-parity $J^π=0^+$ for all odd-odd $pf$ shell nuclei except for $^{58}_{29}$Cu, which has $J^π=1^+$.
description: 5 pages, 2figures
Jiangsuacarus XUE, WANG, SONG & HONG, 2009, gen. nov.
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
Eriophyidae
Jiangsuacarus

description: Jiangsuacarus gen. nov.
 Type species. Jiangsuacarus huaguoshanensis sp. nov.
 Diagnosis. Body fusiform; prodorsal shield with broad frontal lobe, scapular tubercles and setae (sc) absent; all coxal setae present; legs with usual series of setae; opisthosoma evenly rounded and differentiated into broad dorsal annuli and narrow ventral annuli, opisthosoma with all usual setae; empodium entire; setae h1 absent.
 Etymology. The genus designation is derived from the combination of Jiangsu (province name of the location, where the type species were collected) and Acarus, masculine in gender.
 Notes. The new genus is assigned to Eriophyoidea, Eriophyidae, Phyllocoptinae, Calacarini. The new genus is similar to Jutarus Boczek & Chandrapatya, 1989, but can be differentiated from the latter by antaxial genual seta (l'') on leg II present (antaxial genual seta (l'') on leg II absent in Jutarus). The new genus is also similar to Jaranasia Chandrapatya & Boczek, 2000a, but can be differentiated from the latter by opisthosoma differentiated into broad dorsal annuli and narrow ventral annuli (opisthosoma annuli not differentiated in Jaranasia), prodorsal shield with broad frontal lobe (prodorsal shield with prominent, blunt lobe in Jaranasia).
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 38, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
A new method in determination of electrical parameters for failure diagnostic applicable to power transformers
Creators: name: Pham, Dinh Anh Khoi
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Electrical transformer parameter
subject: frequency response analysis (FRA)
subject: failure diagnostic
subject: measurement methods
subject: power transformers
subject: transformer active part
subject: electrical and mechanical failure
subject: transformer model
subject: Elektrische Transformator-Parameter
subject: Frequenz Response Analyse
subject: Fehlerdiagnose
subject: Messmethoden
subject: Leistungstransformatoren
subject: Transformatoraktivteil
subject: elektrische und mechanische Fehler
subject: Transformatorenmodell
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Jutarus benjaminae Boczek & Chandrapatya 1989
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
Eriophyidae
Jutarus
Jutarus benjaminae

description: Jutarus benjaminae Boczek & Chandrapatya, 1989
 Jutarus benjaminae Boczek & Chandrapatya, 1989: 134–135.
 Jutarus benjaminae; Amrine & Satsny, 1994: 221.
 Jutarus benjaminae: Huang, 2001b: 25–26.
 Material examined. 6 females (slide number NJAUAcariEriQ34), from Castanopsis formosana (Fagaceae), The Bawangling Mountain, Changjiang County, Hainan Province, P. R. China, 19°07'03" N, 109°09'02" E, elevation 650m, 29 September 2008, coll. Xiao-Feng Xue, Zhen Wang and Zi-Wei Song, occurred together with Disella octcella Huang, 2001.
 Host. Castanopsis formosana (Fagaceae), Ficus benjamina (Moraceae).
 Relation to host. Vagrant.
 Distribution. China (Taiwan, Hainan), Thailand.
 Remarks: Boczek & Chandrapatya (1989) recorded the host of type species as Ficus benjamina (Moraceae).
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 42, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
A holistic evaluation concept for long-term structural health monitoring
Creators: name: Häckell, Moritz Werther
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Structural health monitoring
subject: offshore wind turbines
subject: modal analysis
subject: statistical analysis
subject: machine learning algorithms
subject: condition parameter
subject: hypothesis testing
subject: Zustandsüberwachung
subject: Offshore Windenergieanlagen
subject: Modalanalyse
subject: statistische Analyse
subject: maschinelles Lernen
subject: Zustandsparameter
subject: Hypothesen Tests
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::624 | Ingenieurbau und Umwelttechnik

description: [no abstract]
Spin physics at A Fixed-Target ExpeRiment at the LHC (AFTER@LHC)
Creators: name: Rakotozafindrabe, A.
name: Anselmino, M.
name: Arnaldi, R.
name: Brodsky, S. J.
name: Chambert, V.
name: Didelez, J. P.
name: Ferreiro, E. G.
name: Fleuret, F.
name: Genolini, B.
name: Hadjidakis, C.
name: Lansberg, J. P.
name: Lorce, C.
name: Rosier, P.
name: Schienbein, I.
name: Scomparin, E.
name: Uggerhoj, U. I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We outline the opportunities for spin physics which are offered by a next generation and multi-purpose fixed-target experiment exploiting the proton LHC beam extracted by a bent crystal. In particular, we focus on the study of single transverse spin asymetries with the polarisation of the target.
description: Contributed to the 20th International Spin Physics Symposium, SPIN2012, 17-22 September 2012, Dubna, Russia, 4 pages, LaTeX
A generic gust definition and detection method based on wavelet-analysis
Creators: name: Knoop, Helge
name: Ament, Felix
name: Maronga, Björn
Publisher: name: Berlin : European Meteorological Society
Year: 2019
Subjects: subject: gust
subject: wind
subject: definition
subject: Dewey Decimal Classification::500 | Naturwissenschaften::551 | Geologie, Hydrologie, Meteorologie

description: Wind gusts can have destructive effects on many structures and objects deemed valuable to humans. The aviation industry, for example, views gusts as a major hazard. Their destructive effect is proportional to the momentum that a specific gust imposes onto an object. The actual definition of a gust has a strong influence on how its impact can be quantified. Existing gust definitions, however, are largely based on fixed parameters describing shape requirements and thresholds and are often developed only for specific use cases. These gust definitions do not provide a direct link to the physical impact a particular gust has on a structure or object. The overall goal of this study is to provide such a direct link. The application of a wavelet-analysis to a turbulence-resolving wind velocity signal allows for the localization of signal amplitudes in the period as well as in the time domain. In this paper, we use wavelet-analysis in order to develop a straight-forward method of deriving information about gusts from a wind velocity signal. In order to define what a particular gust might be, we suggest the specification of a characteristic period and amplitude in the time-domain. We define a generic gust as a section of a wind velocity signal, where the wavelet-analysis detects that characteristic amplitude to be matched or exceeded within that characteristic period. The characteristic amplitudes and periods are generic and span a two-dimensional space of generic gust definitions. The method can be applied to turbulence resolving simulation data as well as high-resolution wind velocity measurement data. It can detect gusts of any shape, it is unbiased regarding any specific use case and invariant to changes of the mean wind. We provide a detailed description of the method, its capabilities and demonstrate its application to high resolution wind velocity measurement data.
3DPFIX: Improving Remote Novices' 3D Printing Troubleshooting through Human-AI Collaboration
Creators: name: Kwon, Nahyun
name: Sun, Tong
name: Gao, Yuyang
name: Zhao, Liang
name: Wang, Xu
name: Kim, Jeeeun
name: Hong, Sungsoo Ray
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The widespread consumer-grade 3D printers and learning resources online enable novices to self-train in remote settings. While troubleshooting plays an essential part of 3D printing, the process remains challenging for many remote novices even with the help of well-developed online sources, such as online troubleshooting archives and online community help. We conducted a formative study with 76 active 3D printing users to learn how remote novices leverage online resources in troubleshooting and their challenges. We found that remote novices cannot fully utilize online resources. For example, the online archives statically provide general information, making it hard to search and relate their unique cases with existing descriptions. Online communities can potentially ease their struggles by providing more targeted suggestions, but a helper who can provide custom help is rather scarce, making it hard to obtain timely assistance. We propose 3DPFIX, an interactive 3D troubleshooting system powered by the pipeline to facilitate Human-AI Collaboration, designed to improve novices' 3D printing experiences and thus help them easily accumulate their domain knowledge. We built 3DPFIX that supports automated diagnosis and solution-seeking. 3DPFIX was built upon shared dialogues about failure cases from Q&A discourses accumulated in online communities. We leverage social annotations (i.e., comments) to build an annotated failure image dataset for AI classifiers and extract a solution pool. Our summative study revealed that using 3DPFIX helped participants spend significantly less effort in diagnosing failures and finding a more accurate solution than relying on their common practice. We also found that 3DPFIX users learn about 3D printing domain-specific knowledge. We discuss the implications of leveraging community-driven data in developing future Human-AI Collaboration designs.
description: CSCW2024
Dynamics of Chromospheric Upflows and Underlying Magnetic Fields
Creators: name: Yurchyshyn, Vasyl
name: Abramenko, Valentyna
name: Goode, Phil
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We used \ha-0.1 nm and magnetic field (at 1.56$μ$) data obtained with the New Solar Telescope to study the origin of the disk counterparts to type II spicules, so-called rapid blueshifted excursions (RBEs). The high time cadence of our chromospheric (10 s) and magnetic field (45 s) data allowed us to generate x-t plots using slits parallel to the spines of the RBEs. These plots, along with potential field extrapolation, led us to suggest that the occurrence of RBEs is generally correlated with the appearance of new, mixed or unipolar fields in close proximity to network fields. RBEs show a tendency to occur at the interface between large-scale fields and small-scale dynamic magnetic loops and thus are likely to be associated with existence of a magnetic canopy. Detection of kinked and/or inverse "Y" shaped RBEs further confirm this conclusion.
description: 6 pages, 5 figures
Large-scale lognormality in turbulence modeled by Ornstein-Uhlenbeck process
Creators: name: Matsumoto, Takeshi
name: Takaoka, Masanori
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Lognormality was found experimentally for coarse-grained squared turbulence velocity and velocity increment when the coarsening scale is comparable to the correlation scale of the velocity (Mouri et al. Phys. Fluids 21, 065107, 2009). We investigate this large-scale lognormality by using a simple stochastic process with correlation, the Ornstein-Uhlenbeck (OU) process. It is shown that the OU process has a similar large-scale lognormality, which is studied numerically and analytically.
description: 7 pages, 5 figures, PRE in press
Jutarus pasanus Huang & Wang 2004
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
Eriophyidae
Jutarus
Jutarus pasanus

description: Jutarus pasanus Huang & Wang, 2004
 Jutarus pasanus Huang & Wang, 2004c: 6–8.
 Host. Pasania konishii (Fagaceae).
 Relation to host. Vagrant.
 Distribution. China (Taiwan).
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 42, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
On the conditional distributions of low-dimensional projections from high-dimensional data
Creators: name: Leeb, Hannes
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We study the conditional distribution of low-dimensional projections from high-dimensional data, where the conditioning is on other low-dimensional projections. To fix ideas, consider a random d-vector Z that has a Lebesgue density and that is standardized so that $\mathbb{E}Z=0$ and $\mathbb{E}ZZ'=I_d$. Moreover, consider two projections defined by unit-vectors $α$ and $β$, namely a response $y=α'Z$ and an explanatory variable $x=β'Z$. It has long been known that the conditional mean of y given x is approximately linear in x$ under some regularity conditions; cf. Hall and Li [Ann. Statist. 21 (1993) 867-889]. However, a corresponding result for the conditional variance has not been available so far. We here show that the conditional variance of y given x is approximately constant in x (again, under some regularity conditions). These results hold uniformly in $α$ and for most $β$'s, provided only that the dimension of Z is large. In that sense, we see that most linear submodels of a high-dimensional overall model are approximately correct. Our findings provide new insights in a variety of modeling scenarios. We discuss several examples, including sliced inverse regression, sliced average variance estimation, generalized linear models under potential link violation, and sparse linear modeling.
description: Published in at http://dx.doi.org/10.1214/12-AOS1081 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A numerically efficient and holistic approach to design optimization of offshore wind turbine jacket substructures
Creators: name: Häfele, Jan
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: jacket substructures
subject: offshore wind energy
subject: optimization
subject: structural optimization
subject: nonlinear programming
subject: Jacket-Tragstrukturen
subject: Offshore-Tragstrukturen
subject: Offshore-Windenergie
subject: Optimierung
subject: Strukturoptimierung
subject: Nichtlineare Programmierung
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Die Strukturoptimierung von Jacket-Tragstrukturen für Offshore-Windenergieanlagen birgt das Potenzial, signifikant zur Senkung der normierten Stromentstehungskosten von Offshore-Wind-energie beizutragen. In der Wissenschaft wurden in den letzten Jahren große Anstrengungen unternommen, um geeignete Ansätze hierfür zu entwickeln. Nichtsdestotrotz besteht weiterhin die Herausforderung, diese als unverzichtbare Optionen für die Dimensionierung von Jacket-Tragstrukturen nach dem Stand der Technik zu etablieren. In dieser Arbeit wird ein Optimierungsansatz vorgestellt, der das Problem ganzheitlich adressiert und sowohl hinsichtlich Genauigkeit als auch numerischer Effizienz Verbesserungen gegenüber dem Stand der Forschung darstellt. Dabei werden im Wesentlichen vier Aspekte thematisiert: Erstens, eine numerisch effiziente Implementierung der Boden-Bauwerk-Interaktion in Gesamtsimulationen von Offshore-Windenergielagen. Zweitens, eine umfangreiche Studie über reduzierte Lastsätze, die für die Berechnung der Ermüdungslebensdauern von Jacket-Tragstrukturen verwendet werden können. Der dritte Aspekt adressiert die Formulierung des Optimierungsproblems und beinhaltet die Entwicklung von Modellen für eine Zielfunktion, ein Kostenmodell auf Basis linear gewichteter Faktoren einzelner Kostenanteile, und nichtlineare Nebenbedingungen, für die Ersatzmodelle auf Basis der Gaußprozessregression zur numerisch effizienten Evaluation von Ermüdungs- und Extremlastnachweisen eingesetzt werden. Alle Entwicklungen werden im Rahmen des vierten Aspektes zu einem ganzheitlichen Optimierungsansatz zusammengeführt, der unter Verwendung gradientenbasierter Methoden am Beispiel der Optimierung von Jacket-Tragstrukturen für die NREL 5 MW-Referenzturbine vielversprechende Ergebnisse liefert.
CLS INFRA D7.1 On Programmable Corpora
Creators: name: Börner, Ingo
name: Trilcke, Peer
Publisher: name: Zenodo
Year: 2023
Subjects: Computational Literary Studies
Corpora
Literature
API
Programmable Corpora
DraCor

description: While the discipline of Computational Literary Studies (CLS) consolidates, infrastructural challenges arise that have to be addressed to ensure that good, sustainable and open scholarship can be carried out in this dynamic field of Digital Humanities research. In this situation, Work Package 7 of the CLS project, entitled “Building the Ecosystem of and for Programmable Corpora”, is developing a small-scale, but highly functional prototype for an infrastructural ecosystem for CLS research, following the concept of a network-based software architecture. The prototype, implemented as the multi-component system “DraCor” (Drama Corpora Platform), realizes the concept of “Programmable Corpora”, which is defined as corpora that expose an open, transparently documented and (at least partly) research-driven API to make texts machine-actionable. This report gives a detailed description of the DraCor system as a prototype for “Programmable Corpora”. It also shares two first experiments in adapting and transferring the approach of an API-based CLS research infrastructure to other systems and resources.
A petrological and geochemical cross section of lower crust at the Wadi Gideah (Samail ophiolite) : implications for the crustal accretion at fast-spreading mid-ocean ridges
Creators: name: Müller, Tim
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Fast-spreading mid-ocean ridges
subject: crustal accretion
subject: Oman ophiolite
subject: Wadi Gideah
subject: layered gabbro
subject: major elements
subject: trace elements
subject: crystallographic preferred orientation
subject: axial melt lens
subject: Schnell-spreizende mittelozeanische Rücken
subject: Krustenbildung
subject: Oman Ophiolith
subject: lagige Gabbros
subject: Hauptelemente
subject: Spurenelemente
subject: bevorzugte kristallographische Orientierung
subject: axiale Schmelzlinse
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: [no abstract]
On the evolution of the non exchange spring behaviour to the exchange spring behaviour: A First Order Reversal Curve Analysis
Creators: name: Roy, Debangsu
name: K, Sreenivasulu
name: Kumar, P S Anil
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetization behaviour of the soft Cobalt Ferrite-hard Strontium Ferrite nanocomposite is tuned from the non exchange spring nature to the exchange spring nature, by controlling the particle size of the soft Cobalt Ferrite in the Cobalt Ferrite: Strontium Ferrite (1:8) nanocomposite. The relative strength of the interaction governing the magnetization process in the nanocomposites is investigated using Henkel plot and First Order Reversal Curve (FORC) method. The FORC method has been utilized to understand the magnetization reversal behaviour as well as the extent of the irreversible magnetization present in both the nanocomposites having smaller and larger particle size of the Cobalt Ferrite. The magnetization process is primarily controlled by the domain wall movement in the nanocomposites. Using the FORC distribution in the (Ha, Hb) co-ordinate, the onset of the nucleation field, invasion of the domain wall from the soft to the hard phase, domain wall annihilation and the presence of the reversible magnetization with the applied reversal field for both the nanocomposites has been investigated. It has been found that for the composite having lower particle size of the soft phase shows a single switching behaviour corresponding to the coherent reversal of the both soft and hard phases. However, the composite having higher Cobalt Ferrite particle size shows two peak behaviour in the FORC distribution resembling individual switching of the soft and hard phases. The FORC distribution in (Hu, Hc) co-ordinate and the Henkel measurement confirms the dominant exchange interaction in the nanocomposites exhibiting exchange spring behaviour where as the occurrence of both the dipolar and exchange interaction is substantiated for the non exchange coupled nanocomposite.
Discrete flow mapping: transport of phase space densities on triangulated surfaces
Creators: name: Chappell, David
name: Tanner, Gregor
name: Sondergaard, Niels
name: Loechel, Dominik
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Dynamical Systems (math.DS)
subject: Numerical Analysis (math.NA)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Energy distributions of high frequency linear wave fields are often modelled in terms of flow or transport equations with ray dynamics given by a Hamiltonian vector field in phase space. Applications arise in underwater and room acoustics, vibro-acoustics, seismology, electromagnetics, and quantum mechanics. Related flow problems based on general conservation laws are used, for example, in weather forecasting or molecular dynamics simulations. Solutions to these flow equations are often large scale, complex and high-dimensional, leading to formidable challenges for numerical approximation methods. This paper presents an efficient and widely applicable method, called discrete flow mapping, for solving such problems on triangulated surfaces. An application in structural dynamics - determining the vibro-acoustic response of a cast aluminium car body component - is presented.
description: 12 pages, 6 figures
All semiconductor enhanced high- harmonic generation from a single nanostructured cone
Creators: name: Franz, Dominik
name: Gauthier, David
name: Nicolas, Rana
name: Kholodtsova, Maria
name: Douillard, Ludovic
name: Gomes, Jean-Thomas
name: Lavoute, Laure
name: Gaponov, Dimitry
name: Nicolas, Ducros
name: Février, Sebastien
name: Biegert, Jens
name: Shi, Liping
name: Kovacev, Milutin
name: Boutu, Willem
name: Merdji, Hamed
Publisher: name: London : Macmillan Publishers Ltd
Year: 2019
Subjects: subject: petahertz optoelectronic devices
subject: nanojoules femtosecond laser
subject: 3D semiconductor
subject: Ultra-compact UV/X-ray
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::600 | Technik

description: The enhancement and control of non-linear phenomena at a nanometer scale has a wide range of applications in science and in industry. Among these phenomena, high-harmonic generation in solids is a recent focus of research to realize next generation petahertz optoelectronic devices or compact all solid state EUV sources. Here, we report on the realization of the first nanoscale high harmonic source. The strong field regime is reached by confining the electric field from a few nanojoules femtosecond laser in a single 3D semiconductor waveguide. We reveal a strong competition between enhancement of coherent harmonics and incoherent fluorescence favored by excitonic processes. However, far from the band edge, clear enhancement of the harmonic emission is reported with a robust sustainability offering a compact nanosource for applications. We illustrate the potential of our harmonic nano-device by performing a coherent diffractive imaging experiment. Ultra-compact UV/X-ray nanoprobes are foreseen to have other applications such as petahertz electronics, nano-tomography or nano-medicine.
All AdS7 solutions of type II supergravity
Creators: name: Apruzzi, Fabio
name: Fazzi, Marco
name: Rosa, Dario
name: Tomasiello, Alessandro
Publisher: name: Cham : Springer
Year: 2014
Subjects: subject: Flux compactifications
subject: AdS-CFT Correspondence
subject: Superstring Vacua
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In M-theory, the only AdS7 supersymmetric solutions are AdS7 × S 4 and its orbifolds. In this paper, we find and classify new supersymmetric solutions of the type AdS7 × M 3 in type II supergravity. While in IIB none exist, in IIA with Romans mass (which does not lift to M-theory) there are many new ones. We use a pure spinor approach reminiscent of generalized complex geometry. Without the need for any Ansatz, the system determines uniquely the form of the metric and fluxes, up to solving a system of ODEs. Namely, the metric on M 3 is that of an S 2 fibered over an interval; this is consistent with the Sp(1) R-symmetry of the holographically dual (1,0) theory. By including D8 brane sources, one can numerically obtain regular solutions, where topologically M 3 ≅ S 3.
Full Jet Reconstruction in 2.76 TeV pp and Pb-Pb collisions in the ALICE experiment
Creators: name: Reed, Rosi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Measurements of the suppression of high-pT particles and the away-side jets from heavy-ion collisions at RHIC have shown that medium-induced energy loss affects partons produced in the early stage of a heavy-ion collision. At LHC energies the initial production cross-section is much higher, which allows jets to be reconstructed with a wide kinematic range. Measuring fully reconstructed jets by taking advantage of the ALICE Electromagnetic Calorimeter allows for a more differential investigation of the parton energy loss. Parton energy loss will allow us to access key observables of the hot, dense matter created in heavy ion collisions. The data presented was collected during the 2.76 TeV Pb-Pb runs, as well as baseline measurements from the 2.76 TeV pp run. The procedures used to reconstruct jets and extract them from a fluctuating background will be discussed. The procedure for quantifying the background with a limited acceptance will also be discussed. These results are compared to pp measurements and simulations.
description: 4 Pages, Hot Quarks 2012 Proceedings
Ranunculus alpestris Tausch
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. alpestris (Jacq.) Tausch Cat. XLVI und220. Früher zwei Angaben aus dem Wallis, von denen aber nur die eine nicht von vornherein unglaubwürdig ist: Südseite des Simplon (wo?), REYNIER nach Gaudin 1829 (ohne Pflanze und nie bestätigt). Seither ist für diese ostalpine (aber auch noch im Aostatal vorkommende) Art ein durch eine Herbarpflanze belegter Fundort bekanntgeworden: 4: Breithorn im Binntal, 2650 m (E. Cornaz 1894 in herb. Bumat, Genf, det. Cornaz, teste Babcock).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
A process model for customer relationship management system selection
Creators: name: Friedrich, Ina
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: CRM
subject: system selection
subject: system evaluation
subject: case study research
subject: process model
subject: automotive industry
subject: System Auswahlprozess
subject: Software Auswahl
subject: Fallbeispiel Forschung
subject: Prozessmodell
subject: Automobilindustrie
subject: Dewey Decimal Classification::600 | Technik::650 | Management

description: [no abstract]
Phaulacus acutilobus Kadono 1988
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
Eriophyidae
Phaulacus
Phaulacus acutilobus

description: Phaulacus acutilobus Kadono, 1988
 Phaulacus acutilobus Kadono, 1988: 150–152.
 Phaulacus acutilobus; Amrine & Satsny, 1994: 242.
 Host. Castanea sp. (Fagaceae).
 Relation to host. Vagrant.
 Distribution. Japan.
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 42, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Merging neutron star binaries: equation of state and electrodynamics
Creators: name: Lai, Dong
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Merging neutron star (NS) binaries may be detected by ground-based gravitational wave (GW) interferometers (e.g. LIGO/VIRGO) within this decade and may also generate electromagnetic radiation detectable by wide-field, fast imaging telescopes that are coming online. The GWs can provide new constraint on the NS equation of state (including mass-radius relation and the related nuclear symmetry energy through resonant g-modes). This paper reviews various hydrodynamical (including equilibrium and dynamical/resonant tides) and electrodynamical processes in coalescing NS binaries, with focus on the pre-merger phase.
description: Proceedings of IAUS 291 "Neutron Stars and Pulsars: Challenges and Opportunities after 80 years", J. van Leeuwen (ed.); 7 pages, 1 figure; section 3 follows arXiv:1206.3723 which is already published in ApJL
title: EU-Höchstgehalte für Cadmium in Säuglings- und Kleinkindernahrung ausreichend - Exposition gegenüber Blei sollte grundsätzlich auf das erreichbare Minimum reduziert werden: Stellungnahme Nr. 026/2018 des BfR vom 7. August 2018
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2018
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2018, no. 026
Engineering Polarization Rotation in Ferroelectric Bismuth Titanate
Creators: name: Roy, Amritendu
name: Prasad, Rajendra
name: Auluck, Sushil
name: Garg, Ashish
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Here, we report a combined experimental-theoretical study showing that collective application of rare earth doping on A-site and epitaxial strain to ferroelectric bismuth titanate does not lead to a very large c-axis polarization as reported previously. Further first principles calculations based on the examination of polarization tensor suggest that simultaneous Bi and Ti site doping could result in moderate polarization along c-axis of bismuth titanate which is typically a preferential axis of film growth and thus enabling c axis oriented films to have appreciable polarization. This approach could also be applicable to other ferroic oxides where one can correlate the doping, epitaxial strain, and polarization to design materials compositions resulting in epitaxial films grown along desired directions yielding substantial polarization.
description: 16 pages, two figures
Variable stars in the globular cluster NGC 7492. New discoveries and physical parameters determination
Creators: name: Jaimes, R. Figuera
name: Ferro, A. Arellano
name: Bramich, D. M.
name: Giridhar, Sunetra
name: Kuppuswamy, K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have performed a photometric V, R, I CCD time-series analysis with a baseline of ~8 years of the outer-halo globular cluster NGC 7492 with the aim of searching for new variables and using these (and the previously known variables) to determine the physical parameters of interest for the cluster (e.g. metallicity, absolute magnitude of the horizontal branch, distance, etc.). We use difference image analysis (DIA) to extract precise light curves in the relatively crowded star field, especially towards the densely populated central region. Several approaches are used for variability detection that recover the known variables and lead to new discoveries. We determine the physical parameters of the only RR0 star using light curve Fourier decomposition analysis. We find one new long period variable and two SX Phe stars in the blue straggler region. We also present one candidate SX Phe star which requires follow-up observations. Assuming that the SX Phe stars are cluster members and using the period-luminosity relation for these stars, we estimate their distances as ~25.2+-1.8 and 26.8+-1.8 kpc, and identify their possible modes of oscillation. We refine the periods of the two RR Lyrae stars in our field of view. We find that the RR1 star V2 is undergoing a period change and possibly exhibits the Blazhko effect. Fourier decomposition of the light curve of the RR0 star V1 allows us to estimate the metallicity [Fe/H]_ZW-1.68+-0.10 or [Fe/H]_UVES-1.64+-0.13, log-luminosity ~1.76+-0.02, absolute magnitude ~0.38+-0.04 mag, and true distance modulus of ~16.93+-0.04 mag, which is equivalent to a distance of ~24.3+-0.5 kpc. All of these values are consistent with previous estimates in the literature.
description: 12 pages, 13 figures, 6 tables, accepted for publication in A&A
A proteomic dissection of embryogenesis in Cyclamen persicum
Creators: name: Rode, Christina
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Cyclamen
subject: embryogenesis
subject: proteomics
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
Hysteresis behavior of the anisotropic quantum Heisenberg model
Creators: name: Akıncı, Ümit
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The effect of the anisotropy in the exchange interaction on the hysteresis loops within the anisotropic quantum Heisenberg model has been investigated with the effective field theory for two spin cluster. Particular attention has been devoted on the behavior of the hysteresis loop area, coercive field and remanent magnetization with the anisotropy in the exchange interaction for both ferromagnetic and paramagnetic phases.
description: 10 pages, 6 figures
A semantic web service-based framework for generic personalization and user modeling
Creators: name: Krause, Daniel
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Personalization
subject: user modeling
subject: semantic web
subject: Personalisierung
subject: Benutzermodellierung
subject: semantik Web
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: [no abstract]
A step towards molecular electronics : the ferrocene molecule on a metal-semiconductor system
Creators: name: Schmeidel, Je̜drzej Piotr
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Scanning tunneling microscope (STM)
subject: metal-semiconductor systems
subject: molecular electronics
subject: RasterTunnelMikroskop (RTM)
subject: Metall-Halbleiter Systeme
subject: molekulare Elektronik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
A study of pathogenesis-related (PR) proteins from pearl millet (Pennisetum glaucum) after infection with the downy mildew pathogen (Sclerospora graminicola)
Creators: name: Mundakana, Manjula
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Chitinase
subject: downy mildew pathogen (Sclerospora graminicola)
subject: pearl millet (Pennisetum glaucum)
subject: Falscher Mehltau
subject: Perlhirse
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
A two-scale model of granular materials using a coupled DE-FE approach
Creators: name: Wellmann, Christian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Granular material
subject: discrete element method
subject: homogenization
subject: multi-scale
subject: Arlequim coupling
subject: superquadric
subject: Granulare Materialien
subject: Diskrete Elemente Methode
subject: Homogenisierung
subject: Multiskalen
subject: Arlequin Kopplung
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: [no abstract]
A self-referenced single-electron current source
Creators: name: Fricke, Lukas
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Single-electron pump
subject: dynamic quantum dot
subject: counting statistics
subject: charge detection
subject: quantum ampere
subject: Einzel-Elektronen-Pumpe
subject: dynamischer Quantenpunkt
subject: Zählstatistik
subject: Ladungsdetektion
subject: Quanten-Ampere
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
A study of the influence of water and pressure on viscosity of silicate melts = Eine Studie zum Einfluss von Wasser und Druck auf die Viskosität von silikatischen Schmelzen
Creators: name: Del Gaudio, Pierdomenico
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Viscosity of silicate melts
subject: pressure
subject: water content
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
The transfer principle: A tool for complete case analysis
Creators: name: Koul, Hira L.
name: Müller, Ursula U.
name: Schick, Anton
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: This paper gives a general method for deriving limiting distributions of complete case statistics for missing data models from corresponding results for the model where all data are observed. This provides a convenient tool for obtaining the asymptotic behavior of complete case versions of established full data methods without lengthy proofs. The methodology is illustrated by analyzing three inference procedures for partially linear regression models with responses missing at random. We first show that complete case versions of asymptotically efficient estimators of the slope parameter for the full model are efficient, thereby solving the problem of constructing efficient estimators of the slope parameter for this model. Second, we derive an asymptotically distribution free test for fitting a normal distribution to the errors. Finally, we obtain an asymptotically distribution free test for linearity, that is, for testing that the nonparametric component of these models is a constant. This test is new both when data are fully observed and when data are missing at random.
description: Published in at http://dx.doi.org/10.1214/12-AOS1061 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
About the importance of mitochondrial complex I and associated gamma carbonic anhydrases for plant development, metabolism and the proteome
Creators: name: Fromm, Steffanie
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Carbonic anhydrase
subject: complex I dysfunction
subject: NADH dehydrogenase complex
subject: respiratory chain
subject: Arabidopsis thaliana
subject: Atmungskette
subject: Carboanhydrase
subject: Komplex I Dysfunktion
subject: NADH Dehydrogenase Komplex
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
About the production of residual nuclides by neutron-induced reactions up to 180 MeV
Creators: name: Hansmann, David
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Cross sections
subject: residual nuclides
subject: neutrons
subject: medium energy
subject: Wirkungsquerschnitte
subject: Restkerne
subject: Neutronen
subject: mittlere Energien
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Activity Detection for Massive Connectivity in Cell-free Networks with Unknown Large-scale Fading, Channel Statistics, Noise Variance, and Activity Probability: A Bayesian Approach
Creators: name: Zhang, Hao
name: Lin, Qingfeng
name: Li, Yang
name: Cheng, Lei
name: Wu, Yik-Chung
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 68T01

description: Activity detection is an important task in the next generation grant-free multiple access. While there are a number of existing algorithms designed for this purpose, they mostly require precise information about the network, such as large-scale fading coefficients, small-scale fading channel statistics, noise variance at the access points, and user activity probability. Acquiring these information would take a significant overhead and their estimated values might not be accurate. This problem is even more severe in cell-free networks as there are many of these parameters to be acquired. Therefore, this paper sets out to investigate the activity detection problem without the above-mentioned information. In order to handle so many unknown parameters, this paper employs the Bayesian approach, where the unknown variables are endowed with prior distributions which effectively act as regularizations. Together with the likelihood function, a maximum a posteriori (MAP) estimator and a variational inference algorithm are derived. Extensive simulations demonstrate that the proposed methods, even without the knowledge of these system parameters, perform better than existing state-of-the-art methods, such as covariance-based and approximate message passing methods.
description: 16 pages, 9 figures, accepted for publication in IEEE Transactions on Signal Processing
Phaulacus obtusilobus Kadano 1988
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
Eriophyidae
Phaulacus
Phaulacus obtusilobus

description: Phaulacus obtusilobus Kadano, 1988
 Phaulacus obtusilobus Kadano, 1988: 152.
 Phaulacus obtusilobus; Amrine & Satsny, 1994: 242.
 Phaulacus obtusilobus; Hong & Zhang, 1996: 39.
 Phaulacus obtusilobus; Kuang, Luo & Wang, 2005: 49–50.
 Material examined. 7 females (slide number NJAUAcariEriW85), from Castanea seguinii (Fagaceae), The Tiantangzhai National Forest Park, Jinzhai County, Anhui Province, P. R. China, 31°09'57" N, 115°45'57" E, 10 September 2008, coll. Zi-Wei Song and Zhen Wang.
 Host. Castanea mollissima, C. seguinii (Fagaceae).
 Relation to host. Vagrant.
 Distribution. Japan (Chiba), China (Jiangsu, Taiwan, Anhui).
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 43, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215