cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Messung der Einkopplung statistischer elektromagnetischer Felder in eine verdrillte Doppelleitung mit angepasstem Leitungsabschluss
Creators: name: Magdowski, Mathias
name: Henning, Gerald
name: Vick, Ralf
Publisher: name: Aachen : Apprimus
Year: 2016
Subjects: subject: Elektromagnetische Felder
subject: Kommunikationstechnik
subject: Störfestigkeit
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: In vielen Bereichen der Kommunikationstechnik werden verdrillte Leitungen eingesetzt, da diese gegenüber externen elektromagnetischen Feldern eine höhere Störfestigkeit ermöglichen. Aus Kostenund Gewichtsgründen werden solche Leitungen häufig ungeschirmt ausgeführt. Ist vom einfallenden Feld nicht die exakte Einfallsrichtung und Polarisation, sondern nur eine gewisse Verteilung und räumliche Korrelation der Feldgrößen bekannt, so spricht man auch von statistischen Feldern. Solche Felder haben gerade in resonanten Umgebungen eine hohe Praxisrelevanz. Sie können für experimentelle Untersuchungen in Modenverwirbelungskammern erzeugt werden. Im Beitrag wird die Messung der Einkopplung statistischer Felder in eine verdrillte Doppelleitung im Freiraum beschrieben. Ein entsprechendes Simulationsmodell [5] ist bereits vorhanden und kann damit experimentell validiert werden. Ähnliche Messungen wurden bereits bei einer Anregung durch einzelne ebene Wellen mit veränderlicher Einfallsrichtung [1] durchgeführt. Auch für die Anregung durch statistische Felder existieren bereits Messergebnisse [4], allerdings mit einer leerlaufenden bzw. kurzgeschlossenen Leitung. In diesem Beitrag wird eine Leitung mit angepasstem Leitungsabschluss untersucht. Am angepassten Leitungsende treten nahezu keine Reflexionen und damit auch keine Mehrfachreflexionen auf. Deshalb gibt es nur sehr geringe Leitungsresonanzen und der Einfluss der Schlaglänge der Verdrillung lässt sich aus der Frequenzabhängigkeit der eingekoppelten Spannung einfacher ermitteln.
Are hadrons simpler than they seem?
Creators: name: Hoyer, Paul
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I briefly review a systematic approximation scheme of QCD in which the quark model picture of hadrons emerges at lowest order. A linear A^0 potential arises if Gauss' law is solved with a non-vanishing boundary condition at spatial infinity. Similarly to the Dirac case one can describe relativistic states including any number of particle pairs (sea quarks) using valence wave functions, whose norms give {\em inclusive} probability densities. Provided α_s(Q^2) freezes in the infrared, perturbative corrections to the S-matrix can be calculated in the usual way, but with states bound by the linear \order{α_s^0} potential instead of plane waves in the in and out states.
description: 4 pages. Talk presented at the 3rd Workshop on the QCD Structure of the Nucleon (QCD-N'12), 22-26 October 2012 in Bilbao, Spain
Vergleichsuntersuchungen zwischen EMV-Laboratorien im Bereich der Störfestigkeitsprüfungen
Creators: name: Scheck, Simon
name: Paulwitz, Christian
name: Weber, Stefan
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: EMV-Messtechnik
subject: EMV-Labor
subject: Messverfahren
subject: Messergebnis
subject: Vergleichsuntersuchung
subject: Prüfling
subject: Störfestigkeit
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Unter dem Aspekt der Sicherstellung der Qualität von Prüfergebnissen sind Vergleiche zwischen Laboratorien zwingend erforderlich. Die Durchführung solcher Vergleichsuntersuchungen in Form von Ringvergleichen oder Eignungsprüfungen ist bei den Prüfungen der Störaussendung jahrelange Praxis, jedoch für den Anwendungsbereich der Störfestigkeitsprüfungen unzureichend entwickelt. Der Beitrag beschreibt zunächst die Vergleichsuntersuchungen der Störfestigkeit am Beispiel der EN/IEC 61000-4-3 sowie den Musterprüfling, dann werden die Ergebnisse der Vergleichsuntersuchungen ausführlich anhand von Abbildungen und Messdiagrammen vorgestellt: Messungen in verschiedenen Konstellationen in demselben Labor; Messungen in verschiedenen Laboratorien. Die Erkenntnisse werden abschließend zusammengefasst.
title: Санкт-Петербург как ‘общественное зрелище’ в мемуарном дискурсе об эпохе Великих реформ
Creators: name: Vassena, Raffaella
Publisher: name: AvtobiografiЯ
Year: 2013

description: Based on the premise, shared by many academics, that the city represents one of the most important places in which we implement the strategies to build and transmit the collective memory of an era, the author examines the characteristics of St. Petersburg in the memoirs related to the early sixties of the nineteenth century. In particular, the author focuses on the characterization of the public space of St. Petersburg as a ‘social stage’, and on the role that visual experience plays in the process of representing this space and of communicating its symbolic meaning to posterity.
Elektrisches Ersatzschaltbild für Lager von Elektromotoren
Creators: name: Hirte, Matthias
name: Vick, Ralf
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: elektrische Eigenschaft
subject: Ersatzschaltbild
subject: Motorgehäuse
subject: Umrichter
subject: Wälzlager
subject: Lebensdauer
subject: elektrisches Schaltbild
subject: Simulationsmodell
subject: Elektromotor
subject: Drehstrommaschine
subject: Lagerstrom
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: In elektrischen Maschinen können Ströme über die Lager auftreten. Diese Ströme sind problematisch, da sie die Lebensdauer von den Lagern deutlich verkürzen können. In der Literatur sind die Ursachen und Auswirkungen diese Ströme beschrieben. Weitere Veröffentlichungen geben Simulationsmodelle und Ersatzschaltbilder für die Quellen und Übertragungspfade der Lagerströme an. Die elektrischen Eigenschaften des Lagers werden meist vernachlässigt. Außerdem werden in zunehmendem Maße bei Drehstrommaschinen die Umrichter direkt in das Motorgehäuse eingebaut. Das Motorgehäuse (und damit auch das Lager) muss in der Lage sein, die vom Umrichter erzeugten Störungen abzuschirmen. Um die Schirmwirkung abschätzen zu können, müssen die elektrischen Eigenschaften des Lagers bekannt sein. Diese sind in der Literatur nur unzureichend angegeben. Es wird ein einfaches Ersatzschaltbild für ein Wälzlager angegeben.
title: Трансформация памяти о писателе на пересечении словесного и визуального ‘пространств’
Creators: name: Kholikov, Alexei
Publisher: name: AvtobiografiЯ
Year: 2013

description: The author refers to the first half of the twentieth century, and chooses to analyze archival sources, the ‘forgotten’ publications. The main objective of the work is to relate verbal and visual ranks as a ‘space’ of the memory of the writer. Attention is focused on the points of intersection between such forms of storing information of the past, on the one hand, an autobiography and a photo, and on the other a memoir and caricature. Theoretical and methodological basis is research on similar issues: N.I. Zhinkin, Y.N. Tynianov, Y.M. Lotman, R. Barthes, S. Sontag, etc.
The Response of Metal Rich Gas to X-Ray Irradiation from a Massive Black Hole at High Redshift: Proof of Concept
Creators: name: Aykutalp, A.
name: Wise, J. H.
name: Meijerink, R.
name: Spaans, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Observational studies show that there is a strong link between the formation and evolution of galaxies and the growth of supermassive black holes (SMBH) at their centers. However, the underlying physics of this observed relation is poorly understood. In order to study the effects of X-ray radiation on the surroundings of the black hole, we implement X-ray Dominated Region (XDR) physics into Enzo and use the radiation transport module Moray to calculate the radiative transfer for a polychromatic spectrum. In this work, we investigate the effects of X-ray irradiation, produced by a central massive black hole (MBH) with a mass of M = 5x10^4 M_(solar), on ambient gas with solar and zero metallicity. We find that in the solar metallicity case, due to high opacity of the metals, the energy deposition rate in the central region (< 20 pc) is high and hence the temperatures in the center are on the order of 10^(5-7) K. Moreover, due to the cooling ability and high intrinsic opacity of solar metallicity gas, column densities of 10^(24) cm^(-2) are reached at a radius of 20 pc from the MBH. These column densities are about 3 orders of magnitudes higher than in the zero metallicity case. Furthermore, in the zero metallicity case an X-ray induced H II region is formed already after 5.8 Myr. This causes a significant outflow of gas (~8x10^6 M_(solar) from the central region, with the gas reaching outflow velocities up to ~100 km s^(-1). At later times, ~23 Myr after we insert the MBH, we find that the solar metallicity case also develops an X-ray induced H II region, but delayed by ~17 Myr.
description: 27 pages, 11 figures. Resubmitted to ApJ
Three Pomerons vs DO and TOTEM Data
Creators: name: Petrov, V. A.
name: Prokudin, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This note highlights the predictive power of the 3-component Pomeron model designed by the authors ten years ago with a partial account of the multiplicity of Pomerons in QCD. The model is put to the test by comparing its predictions with the recent data from DO and TOTEM Collaborations at 1.96 and 7 TeV, respectively. We also compare model predictions for inelastic cross section to experimental measurement by TOTEM, CMS, ALICE, and ATLAS collaborations. It is shown that the DO data are perfectly predicted by the model. Total, elastic, and inelastic cross section predictions are in agreement with the measurements by TOTEM, CMS, ALICE, and ATLAS Collaborations. Differential cross section data at 7 TeV show slight disagreement with predictions of the model in high-$t$ region. Discussions on the origin of the disagreement and conclusions are presented.
description: 7 pages, 6 figures
Evaluating relevance of educational resources of social and Semantic Web
Creators: name: Taibi, Davide
name: Fulantelli, Giovanni
name: Dietze, Stefan
name: Fetahu, Besnik
Publisher: name: Heidelberg : Springer Verlag
Year: 2013
Subjects: subject: Educational relevance of resource
subject: Linked Open Data
subject: OER
subject: Educational resource
subject: Linked open datum
subject: Online resources
subject: Social webs
subject: Artificial intelligence
subject: Computer science
subject: Konferenzschrift
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: The social web paradigm has modified the way people behave on the Web. Amongst the many consequences of this change the amount of online resources directly produced and shared by users has increased considerably. In this scenario the importance of methods to evaluate the educational relevance of the resources raises up. In this poster we propose an approach based on recent advancements of Linked Open Data. The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-642-40814-4_89
title: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 3 (2015)
Creators: name: Denkmalpflege In Baden-Württemberg – Nachrichtenblatt Der Landesdenkmalpflege
Publisher: name: University Library Heidelberg
Year: 2015

description: Inhalt
 Editorial...125
 Vom Schreibtisch in die Burg fliegen! Terrestrische Laservermessung auf der Hochburg bei Emmendingen...126-131
 Oskar Schlemmers letztes Wandbild. Es war einmal ein Denkmal …...132-138
 Die Klosterkirche der Seligen Luitgard in Wittichen. Ein mittelalterlicher Bau im barocken Gewand...139-143
 Wandmalereien in der Altstadtkirche St. Martin in Pforzheim. Die Restaurierung einer Restaurierung...144-149
 Das ehemalige Reichskloster St. Margarethen in Waldkirch. Neue Erkenntnisse durch Geophysik...150-153
 Nationalpark – Natur – Weißtanne – Fichte. Sechs Jahrtausende Wald und Mensch im Nordschwarzwald...154-159
 Kontinuität und Wandel. Das „Nachrichtenblatt der Landesdenkmalpflege“ als E-Journal und die Chancen elektronischen Publizierens...160-165
 Erlebniskoffer „Die Burg im Mittelalter“. Unterrichtsmaterial für die Grundschule...166-167
 „Historische ländliche Architektur“. Unterrichtsmodul für die Sekundarstufe I...167-168
 Die Schmiedetechnik Henning in Metzingen. Thema des 10. Studentenworkshops des Deutschen Nationalkomitees für Denkmalpflege...169-171
 Freizeitspaß und Wettkampffieber. Das Freibad Markwasen in Reutlingen...172-174
 Unterricht mit Aussicht. Das Schulhaus von Wolfegg...175
 Albrecht Bedal: Haller Häuserbuch...176
 Werner Konold/ R. Johanna Regnath (Hrsg.): Militärische Schichten der Kulturlandschaft. Landespflege – Denkmalschutz – Erinnerungskultur...176-177
 Sophie Gerber: Küche, Kühlschrank, Kilowatt. Zur Geschichte des privaten Energiekonsums in Deutschland, 1945 – 1990...177-178
 Mitteilungen...178-183
 Personalia / Abbildungsverzeichnis...183-188
 Die Landesdenkmalpflege
A Novel Approach for Single Gene Selection Using Clustering and Dimensionality Reduction
Creators: name: Sathishkumar, E. N.
name: Thangavel, K.
name: Chandrasekhar, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We extend the standard rough set-based approach to deal with huge amounts of numeric attributes versus small amount of available objects. Here, a novel approach of clustering along with dimensionality reduction; Hybrid Fuzzy C Means-Quick Reduct (FCMQR) algorithm is proposed for single gene selection. Gene selection is a process to select genes which are more informative. It is one of the important steps in knowledge discovery. The problem is that all genes are not important in gene expression data. Some of the genes may be redundant, and others may be irrelevant and noisy. In this study, the entire dataset is divided in proper grouping of similar genes by applying Fuzzy C Means (FCM) algorithm. A high class discriminated genes has been selected based on their degree of dependence by applying Quick Reduct algorithm based on Rough Set Theory to all the resultant clusters. Average Correlation Value (ACV) is calculated for the high class discriminated genes. The clusters which have the ACV value a s 1 is determined as significant clusters, whose classification accuracy will be equal or high when comparing to the accuracy of the entire dataset. The proposed algorithm is evaluated using WEKA classifiers and compared. Finally, experimental results related to the leukemia cancer data confirm that our approach is quite promising, though it surely requires further research.
description: 6 pages, 4 figures. arXiv admin note: text overlap with arXiv:1306.1323
Simulation of Metal/Oxide Interface Mobility: Effects of Mechanical Stresses on Geometrical Singularities
Creators: name: Optasanu, Virgil
name: Raceanu, Laura
name: Montesin, Tony
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: During the last decade, an increasing importance has been given to the feedback of mechanical stresses on the chemical diffusion and, further, on corrosion. Many works point the active role of stresses on the material ageing especially on their negative consequences leading to the damaging of structures. Based on a theoretical study and using numerical tools and experimental results our previous works [1, on stress/diffusion coupling, highlight the strong influence of stress field on the diffusion process. The aim of the present paper is to describe the influence of some particular morphologies of the metal/oxide interface on both diffusion and oxidation process. The oxidation is assumed to be driven by a mass conservation law (Stefan's law) while the diffusion coefficient of oxygen in metal is locally influenced by the stress field. The stability of a waved-shape interface is studied in both cases: simple diffusion and coupled stress/diffusion process. In this purpose we have developed an original numerical model using a virtual metal/oxide interface of a mono-material with oxygen concentration-dependent parameters, which allows to operate easily with any shape of interface and to use simple finite element meshes. Furthermore, in order to underline in a more obvious way the consequences of mechanical stress on the diffusion process, a particular geometry is studied.
title: Personalia / Abbildungsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2015

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 3 (2015), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Multi-source hierarchical conditional random field model for feature fusion of remote sensing images and LiDAR data
Creators: name: Zhang, Z.
name: Yang, M.Y.
name: Zhoua, M.
Publisher: name: Katlenburg-Lindau : Copernicus Publications
Year: 2013
Subjects: subject: Feature fusion
subject: Hierarchical model
subject: Multi-source data
subject: Classification (of information)
subject: Hierarchical systems
subject: Image fusion
subject: Image reconstruction
subject: Optical radar
subject: Random processes
subject: Remote sensing
subject: Conditional random field
subject: Information support
subject: Multisource data
subject: Object classification
subject: Remote sensing applications
subject: Remote sensing images
subject: Image classification
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Feature fusion of remote sensing images and LiDAR points cloud data, which have strong complementarity, can effectively play the advantages of multi-class features to provide more reliable information support for the remote sensing applications, such as object classification and recognition. In this paper, we introduce a novel multi-source hierarchical conditional random field (MSHCRF) model to fuse features extracted from remote sensing images and LiDAR data for image classification. Firstly, typical features are selected to obtain the interest regions from multi-source data, then MSHCRF model is constructed to exploit up the features, category compatibility of images and the category consistency of multi-source data based on the regions, and the outputs of the model represents the optimal results of the image classification. Competitive results demonstrate the precision and robustness of the proposed method.
title: Paving the Way for Counselling? The Link between Maltese PSD Model and Counselling
Creators: name: Falzon, Ruth
name: Frendo, Clarisse
name: Muscat, Maud
Publisher: name: William & Mary Libraries
Year: 2019

description: This study explored whether Personal and Social Development (PSD) teachers, school-based counsellors, and students in Maltese secondary schools perceived processing experiences as empowering to seek counselling, if and when needed. The study investigated if processing techniques within PSD methodology helped develop self-awareness. The research builds on the concept of ethical advertising - opportunity to inform and help clients arrive at courses of actions beneficial for themselves. The literature review discusses processing in the PSD Maltese model, comparing processing with overall counselling experiences. Data were collected through two questionnaires, one for professionals and one for 15 and 16-year-olds completing secondary school education. Results revealed that participants acknowledged the effectiveness of processing with regard to empowerment, information to seek counselling, and increased self-awareness. The results also indicate a need for more students’ awareness with regard to PSD teachers’ specific role, disclosure, and boundaries. Based on the findings, the authors recommend that such a methodology be encouraged in educational systems and that more training and awareness be carried out to clarify teachers’ roles with students so that small-group set-ups yield more effective results.
Polynomials of small degree evaluated on matrices
Creators: name: Mesyan, Zachary
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 15A54, 16S36, 16S50

description: A celebrated theorem of Shoda states that over any field K (of characteristic 0), every matrix with trace 0 can be expressed as a commutator AB-BA, or, equivalently, that the set of values of the polynomial f(x,y)=xy-yx on the nxn-matrix K-algebra contains all matrices with trace 0. We generalize Shoda's theorem by showing that every nonzero multilinear polynomial of degree at most 3, with coefficients in K, has this property. We further conjecture that this holds for every nonzero multilinear polynomial with coefficients in K of degree m, provided that m is at most n+1.
description: 9 pages
Interaction-free measurements by quantum Zeno stabilization of ultracold atoms
Creators: name: Peise, Jan
name: Lücke, Bernd
name: Pezze, L.
name: Deuretzbacher, Frank
name: Ertmer, Wolfgang
name: Arlt, Jan J.
name: Smerzi, A.
name: Santos, Luis
name: Klempt, Carsten
Publisher: name: London : Nature Publishing Group
Year: 2015
Subjects: subject: interrogation
subject: decay
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Quantum mechanics predicts that our physical reality is influenced by events that can potentially happen but factually do not occur. Interaction-free measurements (IFMs) exploit this counterintuitive influence to detect the presence of an object without requiring any interaction with it. Here we propose and realize an IFM concept based on an unstable many-particle system. In our experiments, we employ an ultracold gas in an unstable spin configuration, which can undergo a rapid decay. The object-realized by a laser beam-prevents this decay because of the indirect quantum Zeno effect and thus, its presence can be detected without interacting with a single atom. Contrary to existing proposals, our IFM does not require single-particle sources and is only weakly affected by losses and decoherence. We demonstrate confidence levels of 90%, well beyond previous optical experiments.
Pre-Stressed Sub-Surface Contribution on Bulk Diffusion in Metallic Solids
Creators: name: Raceanu, Laura
name: Optasanu, Virgil
name: Montesin, Tony
name: Creton, Nicolas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Our recent modelling works and corresponding numerical simulations realized to describe the UO2 oxidation processes confirm the theory showing that an applied mechanical strain can strongly affect the local oxygen diffusion in a stressed solid. This result allows us to assume that stress field, previously applied at the surface of a metallic sample on several microns, will delay the degradation during its oxidation. Considering this hypothesis, we implemented a FEM simulation code developed in our laboratory to numerically investigate some different stress fields applied on a sample sub-surface, that might significantly modify the volume diffusion of oxygen during the oxidation process. The results of our simulations are presented and discussed from the perspective to study the consequences of a surface mechanical treatment on the durability of a metallic material.
Equisetum pratense Ehrh.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E.pratense Ehrh. Cat. 412. l: Mayens deRevex (Val duTrient) (Wolf1903inWirtgen,Pterid.exsicc.Nr.4436,nachMaillefer in litt. 1952; vgl. Maillefer Lit. 1934, S. 151). (Zweifelhaft; vgl. das bei Stellarla Holostea über Wolf Gesagte.) - 3:Val d'Heremence (J., Wilczek); Satarma (Maillefer); Turtmanntal, zwischen Tuminen und Hübsch, Unke Seite (Maillefer); Grächen,südlichdes Hotels Hannigalp (Koch); Schwidernen-Herbriggen (Becherer und Kilcher); bei Zermatt selten, neuerdings festgestellt: Zmutt-Tal gegen die Staffelalp (IVtaillefer, Sulger u. a.) und FUSS des Mettelhorns zwischen Biel und Luegelti (Zoller); Saastalvielfach (J., Christ, Bechereru.a.); Berisal (Heer ohneJahr, Favrat 1879, P. Jaccard 1890, Cheneviere 1890undviele andere).- 3a:«Simplonbei6000FUSS am Hospiz» (Heer nach Milde, Monogr. Equis., S.277 [1865]); zwischen Simplon-Dorf und Gabi (v. Tavel, Becherer); Alpien (Bernoulli 1879 in herb. Basel). - 4: Binn (Pugsley); Münster (Duflon, Henchoz, Zwicky); gegenüberUlrichen (Henchoz); Ober-MattzwischenGeschinenund Ulrichen (]V[aillefer).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Revealing dressed-quarks via the proton's charge distribution
Creators: name: Cloet, Ian C.
name: Roberts, Craig D.
name: Thomas, Anthony W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The proton is arguably the most fundamental of Nature's readily detectable building blocks. It is at the heart of every nucleus and has never been observed to decay. It is nevertheless a composite object, defined by its valence-quark content: u+u+d -- i.e., two up (u) quarks and one down (d) quark; and the manner by which they influence, inter alia, the distribution of charge and magnetisation within this bound-state. Much of novelty has recently been learnt about these distributions; and it now appears possible that the proton's momentum-space charge distribution possesses a zero. Experiments in the coming decade should answer critical questions posed by this and related advances; and we explain how such new information may assist in charting the origin and impact of key emergent phenomena within the strong interaction. Specifically, we show that the possible existence and location of a zero in the proton's electric form factor are a measure of nonperturbative features of the quark-quark interaction in the Standard Model, with particular sensitivity to the running of the dressed-quark mass.
description: 5 pages, 3 figures
Kinetics of N2O production and reduction in a nitrate-contaminated aquifer inferred from laboratory incubation experiments
Creators: name: Weymann, D.
name: Geistlinger, H.
name: Well, R.
name: Heide, Carolin Von Der
name: Flessa, H.
Publisher: name: Göttingen : Copernicus GmbH
Year: 2010
Subjects: subject: denitrification
subject: electron
subject: greenhouse gas
subject: groundwater pollution
subject: nitrogen dioxide
subject: reaction kinetics
subject: unconfined aquifer
subject: Germany
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Knowledge of the kinetics of N2O production and reduction in groundwater is essential for the assessment of potential indirect emissions of the greenhouse gas. In the present study, we investigated this kinetics using a laboratory approach. The results were compared to field measurements in order to examine their transferability to the in situ conditions. The study site was the unconfined, predominantly sandy Fuhrberger Feld aquifer in northern Germany. A special characteristic of the aquifer is the occurrence of the vertically separated process zones of heterotrophic denitrification in the near-surface groundwater and of autotrophic denitrification in depths beyond 2-3 m below the groundwater table, respectively. The kinetics of N2O production and reduction in both process zones was studied during long-term anaerobic laboratory incubations of aquifer slurries using the 15N tracer technique. We measured N2O, N2, NO3-, NO2-, and SO42- concentrations as well as parameters of the aquifer material that were related to the relevant electron donors, i.e. organic carbon and pyrite. The laboratory incubations showed a low denitrification activity of heterotrophic denitrification with initial rates between 0.2 and 13 μg N kg-1 d-1. The process was carbon limited due to the poor availability of its electron donor. In the autotrophic denitrification zone, initial denitrification rates were considerably higher, ranging between 30 and 148 μg N kg-1 d-1, and NO3- as well as N2O were completely removed within 60 to 198 days. N2O accumulated during heterotrophic and autotrophic denitrification, but maximum concentrations were substantially higher during the autotrophic process. The results revealed a satisfactory transferability of the laboratory incubations to the field scale for autotrophic denitrification, whereas the heterotrophic process less reflected the field conditions due to considerably lower N2O accumulation during laboratory incubation. Finally, we applied a conventional model using first-order-kinetics to determine the reaction rate constants k1 for N2O production and k2 for N2O reduction, respectively. The goodness of fit to the experimental data was partly limited, indicating that a more sophisticated approach is essential to describe the investigated reaction kinetics satisfactorily.
title: Commentary: The Challenges and Future Directions of School Based Counselling in Nigeria
Creators: name: Ojeme, Agatha
Publisher: name: William & Mary Libraries
Year: 2019

description: The purpose of this paper is to examine the challenges of school-based counselling and its future direction in Nigeria. In this endeavour, the author discusses the following possible challenges militating against the smooth running of effective school-based counselling services to include inadequate counselling materials and work tools, deployment of school counsellors to perform non-counselling duties, insufficient training of professional counsellors, lack of clarification of the role of school counsellors, school principals’ low collaboration with school counsellors amongst others. The paper also focused on ways and means of improving school-based counselling services to include enactment of proper policy intervention, putting in place a functional school inspectorate division, improving counselling facilities and equipment in schools, encouragement of regular counsellors’ attendance at workshops, seminars and conferences (i.e., training and retraining of school counsellors) for self-capacity building amongst others.
Digital Industrial B2B Platform Patterns From A Business Perspective
Creators: name: Hartner, Fabian
name: Löwen, Ulrich
name: Franke, Jörg
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Digital Platforms
subject: Value Networks
subject: Platform Patterns
subject: Business Models
subject: Manufacturing Industry
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Platform companies such as Amazon and Google have changed the business-to-consumer (B2C) sector at a rapid pace. In the context of the digitization of products, production systems, and processes, the importance of digital business-to-business (B2B) platforms is also increasing. In the manufacturing industry, value chains change to complex platform-based value networks between business entities. This publication presents the results from the analysis of more than 160 platforms in the manufacturing industry from a business perspective. Using a value network-oriented methodology, defining business roles as well as revenue streams and business relationships, recurring value-creating interactions were observed. In total, eight clearly distinguishable platform patterns have been identified. In this article, these patterns are described in detail with their value and revenue streams as well as their benefits for the individual roles. These patterns aim to achieve a well-founded understanding of platforms in the manufacturing industry and form the fundamentals for further analysis for successful digital industrial B2B platforms.
Physical Layer Security in Cellular Networks: A Stochastic Geometry Approach
Creators: name: Wang, He
name: Zhou, Xiangyun
name: Reed, Mark C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper studies the information-theoretic secrecy performance in large-scale cellular networks based on a stochastic geometry framework. The locations of both base stations and mobile users are modeled as independent two-dimensional Poisson point processes. We consider two important features of cellular networks, namely, information exchange between base stations and cell association, to characterize their impact on the achievable secrecy rate of an arbitrary downlink transmission with a certain portion of the mobile users acting as potential eavesdroppers. In particular, tractable results are presented under diverse assumptions on the availability of eavesdroppers' location information at the serving base station, which captures the benefit from the exchange of the location information between base stations.
description: To appear in IEEE Transactions on Wireless Communications
Data-related preprint withdrawals in arXiv
Creators: name: Zegler-Poleska, Ewa
Publisher: name: Zenodo
Year: 2023
Subjects: preprints
retractions

description: The rapid dissemination of research through preprints poses challenges related to quality control; however, preprint retractions remain unexplored. This poster addresses the gap, using the case of the arXiv, a prominent preprint platform for researchers in data-intensive fields. As of the latest available data (October 20, 2023), the arXiv contains 7217 withdrawn preprints, accompanied by comments explaining the reasons for withdrawal. Among these, 112 withdrawn preprints (approximately 1.6% of the total withdrawn) directly mention issues related to data. Studying data-related withdrawals reveals challenges in data practices and contributes to the discussion on the role of preprints in scholarly communication.
Data from: Andriollo T., Ruedi M. (2018). Novel molecular tools to identify Plecotus bats in sympatry and a review of their distribution in Switzerland. Revue suisse de Zoologie 125(1)
Creators: name: Andriollo, Tommy
name: Ruedi, Manuel
Publisher: name: Zenodo
Year: 2018
Subjects: Plecotus
Biodiversity
Mammalia
Chiroptera
Chordata
Animalia
bats
bat

description: (Uploaded by Plazi for the Bat Literature Project) Three species of long-eared bats (Plecotus auritus, P. macrobullaris and P. austriacus) are known to occur in sympatry in Western Europe. They share very similar morphological characters that complicate their reliable discrimination. As a consequence, many records from these areas are reported to the generic level only and the exact distribution of species is uncertain. Even cranial characters are ambiguous since discriminant values traditionally used to identify those species vary with geography. We present a novel use of molecular tools to identify reliably the three cryptic species of long-eared bats. The methods proposed here for time- and cost-effective molecular identification of Plecotus species are applied to variously degraded samples such as ancient museum specimens and guano samples collected under roosts. We used this molecular approach to identify over 810 samples and reassess the distribution range of the three species occurring in Switzerland. We further showed that some skull measurements used for species recognition overlap to a greater extent than anticipated and can be misleading for morphologically intermediate individuals.
Hide the interior region of core-shell nanoparticles with quantum invisible cloaks
Creators: name: Lee, Jeng Yi
name: Lee, Ray-Kuang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: By applying the interplay among the nodal points of partial waves, along with the concept of streamline in fluid dynamics for the probability flux, a quantum invisible cloak to the electron transport in a host semiconductor is demonstrated by simultaneously guiding the probability flux outside the core region and keeping the total scattering cross section negligible. As the probability flux vanishes in the interior region, one can embed any material inside a multiple core-shell sphere without affecting physical observables from the outside. Our results reveal the possibility to design a protection shield layer for fragile interior parts from the impact of transports of electrons.
description: 5 pages, 4 figures
Introducing a Decision Support System for Use-Case Specific Object Detection Methods in Production Systems
Creators: name: Müller, Kai
name: Saß, Stephan-Andrés
name: Greb, Christoph
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Object Detection
subject: Computer Vision
subject: Deep Learning
subject: Quality Management
subject: Digitalisation
subject: Automation
subject: Internet of Production
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Object detection has the potential to facilitate the automation of optical quality inspection, achieving a significant reduction of human error. However, the gap between needed expertise to understand and integrate complex object detection systems into production environments and the availability of computer scientists, is hindering its use in the manufacturing industry. A support system for decision-makers unrelated to the subject is therefore required to promote industry utilisation of object detection and effectively manage this otherwise unused opportunity of profitable knowledge. Within the Cluster of Excellency “Internet of Production (IoP)”, such a support system has been developed. Lowering the implementation hurdle of object detection systems is achieved by translating complex information about existing methods into tangible factors, such as quality and cost. In this work we aim to structure relevant object detection techniques and employ a decision tree to provide a user-support based on a use-case-oriented framework. The use-case’s basic conditions and requirements serve as input for the framework. The decision tree gives the suitable object detection method as output, accordingly. For traditional object detection techniques, the characteristics are translated into basic requirements, which are then used as input, e.g., for the template matching method the comparison of a source image with a reference image is translated to the ability to guarantee images for all possible quality deviations. The deep learning (DL) methods are consolidated in the project management triangle consisting of quality, cost, and time. Firstly, an introduction into object detection is given. Secondly, traditional methods are clustered and deep learning methods classified. A description of the decision tree is then presented, before testing results conclude this paper. The developed support system enables decision-makers to evaluate object detection methods for individual use-cases and consequently achieve increased production planning efficiency. The system’s universal design allows for application across manufacturing industries and use-cases.
title: Activities and Role of School-Based Counselors in the US: A National Survey of American Counseling Association Members
Creators: name: Fan, Kui
name: Carey, John
name: Martin, Ian
name: He, Lijuan
Publisher: name: William & Mary Libraries
Year: 2019

description: This study was conducted to determine: how a US sample of American Counseling Association (ACA) affiliated school-based counselors viewed their role; the extent to which various activities were practiced; and, how demographic variables (e.g., work setting and professional identity) were related to both perceptions of role and practice. Participants (N = 249) completed the International Survey of School Counselors Activities-US (ISSA-US) online, which measured both perceptions of the appropriateness of 42 activities and whether these activities are reported to be enacted. US counselors had a broad definition of their role and showed a high degree of consensus regarding the appropriateness of activities. Grade level proved to be an important determinate of the level of enactment of both group counseling and college and career counseling. The implications for of these findings for redefining the role of school counselors in the US and for international comparative research are discussed.
Integrating Energy Flexibility in Production Planning and Control - An Energy Flexibility Data Model-Based Approach
Creators: name: Bank, Lukas
name: Wenninger, Simon
name: Köberlein, Jana
name: Lindner, Martin
name: Kaymakci, Can
name: Weigold, Matthias
name: Sauer, Alexander
name: Schilp, Johannes
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Demand Side Management (DSM)
subject: Energy Flexibility (EF)
subject: Production Planning and Control (PPC)
subject: Energy-Flexible PPC
subject: Energy Flexibility Data Model (EFDM)
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Production companies face the challenge of reducing energy costs and carbon emissions while achieving the logistical objectives at the same time. Active management of electricity demand, also known as Demand Side Management (DSM) or Energy Flexibility (EF), has been recognized as an effective approach to minimize energy procurement costs for example by reducing peak loads. Additionally, it helps to integrate (self-generated, volatile) renewable energies to reduce carbon emissions and has the ability to stabilize the power grid, if the incentives are set appropriately. Although production companies possess great potential for EF, implementation is not yet common. Approaches to practical implementation for integrating energy flexibility into production planning and control (PPC) to dynamically adapt the consumption to the electricity supply are scarce to non-existent due to the high complexity of such approaches. Therefore, this paper presents an approach to integrate EF into PPC. Based on the energy-oriented PPC, the approach identifies and models EF of processes in a generic energy flexibility data model (EFDM) which is subsequently integrated in the energy-oriented production plan and further optimised on the market side. An application-oriented use case in the chemical industry is presented to evaluate the approach. The implementation of the approach shows that EF can have a variety of characteristics in production systems and a clear, structured, and applicable method can help companies to an automated EF. Finally, based on the results of the use case, it is recommended to introduce EF in production companies stepwise by extending existing planning and scheduling systems with the presented approach to achieve a realization of flexibility measures and a reduction of energy costs.
Infrared spectroscopy of fullerene C60/anthracene adducts
Creators: name: Garcia-Hernandez, D. A.
name: Cataldo, F.
name: Manchado, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Recent Spitzer Space Telescope observations of several astrophysical environments such as Planetary Nebulae, Reflection Nebulae, and R Coronae Borealis stars show the simultaneous presence of mid-infrared features attributed to neutral fullerene molecules (i.e., C60) and polycyclic aromatic hydrocarbons (PAHs). If C60 fullerenes and PAHs coexist in fullerene-rich space environments, then C60 may easily form adducts with a number of different PAH molecules; at least with catacondensed PAHs. Here we present the laboratory infrared spectra (~2-25 um) of C60 fullerene and anthracene Dies-Alder mono- and bis-adducts as produced by sonochemical synthesis. We find that C60/anthracene Diels-Alder adducts display spectral features strikingly similar to those from C60 (and C70) fullerenes and other unidentified infrared emission features. Thus, fullerene-adducts - if formed under astrophysical conditions and stable/abundant enough - may contribute to the infrared emission features observed in fullerene-containing circumstellar/interstellar environments.
description: Accepted for publication in MNRAS (9 pages and 8 figures)
Untersuchung von Transportphänomenen in der HT-PEM-Brennstoffzelle
Creators: name: Huth, Andreas
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: PEM fuel cell
subject: electrochemical impedance spectroscopy
subject: polybenzimidazole
subject: PEM-Brennstoffzelle
subject: EIS
subject: Polybenzimidazol
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
Evaluation of penalty functions for semi-global matching cost aggregation
Creators: name: Banz, Christian
name: Pirsch, Peter
name: Blume, Holger
Publisher: name: Katlenburg-Lindau : Copernicus Publications
Year: 2012
Subjects: subject: Stereoscopic
subject: Quality
subject: Matching
subject: Vision
subject: Reconstruction
subject: Camera
subject: Disparity Estimation
subject: Semi-Global Matching
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: The stereo matching method semi-global matching (SGM) relies on consistency constraints during the cost aggregation which are enforced by so-called penalty terms. This paper proposes new and evaluates four penalty functions for SGM. Due to mutual dependencies, two types of matching cost calculation, census and rank transform, are considered. Performance is measured using original and degenerated images exhibiting radiometric changes and noise from the Middlebury benchmark. The two best performing penalty functions are inversely proportional and negatively linear to the intensity gradient and perform equally with 6.05 % and 5.91 % average error, respectively. The experiments also show that adaptive penalty terms are mandatory when dealing with difficult imaging conditions. Consequently, for highest algorithmic performance in real-world systems, selection of a suitable penalty function and thorough parametrization with respect to the expected image quality is essential.