cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A young hierarchical triple system harbouring a candidate debris disc
Creators: name: Deacon, N. R.
name: Schlieder, J. E.
name: Olofsson, J.
name: Johnston, K. G.
name: Henning, Th.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the detection of a wide young hierarchical triple system where the primary has a candidate debris disc. The primary, TYC 5241-986-1 A, is a known Tycho star which we classify as a late-K star with emission in the X-ray, near and far-UV and Hα suggestive of youth. Its proper motion, photometric distance (65-105 pc) and radial velocity lead us to associate the system with the broadly defined Local Association of young stars but not specifically with any young moving group. The presence of weak lithium absorption and X-ray and calcium H and K emission support an age in the 20 to ~125 Myr range. The secondary is a pair of M4.5+-0.5 dwarfs with near and far UV and Hα emission separated by approximately 1 arcsec (~65-105 AU projected separation) which lie 145 arcsec (9200-15200 AU) from the primary. The primary has a WISE 22 micron excess and follow-up Herschel observations also detect an excess at 70 micron. The excess emissions are indicative of a 100-175 K debris disc. We also explore the possibility that this excess could be due to a coincident background galaxy and conclude that this is unlikely. Debris discs are extremely rare around stars older than 15 Myr, hence if the excess is caused by a disc this is an extremely novel system.
description: Accepted by MNRAS, 13 pages, 7 figures, 2 tables
Scattering theory of the hyperbolic BC(n) Sutherland and the rational BC(n) Ruijsenaars--Schneider--van Diejen models
Creators: name: Pusztai, B. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this paper, we investigate the scattering properties of the hyperbolic BC(n) Sutherland and the rational BC(n) Ruijsenaars-Schneider-van Diejen many-particle systems with three independent coupling constants. Utilizing the recently established action-angle duality between these classical integrable models, we construct their wave and scattering maps. In particular, we prove that for both particle systems the scattering map has a factorized form.
description: 16 pages
Evidence for a {\bf T}-shape break-up pattern in the triple photoionization of Li
Creators: name: Colgan, J.
name: Emmanouilidou, A.
name: Pindzola, M. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We examine the angular distributions of all three electrons ionized from Li by a single photon near the triple ionization threshold using a fully quantum-mechanical treatment. We find strong evidence for a {\bf T}-shape break-up pattern at 5 eV excess energy as previously predicted by quasi-classical simulations [A. Emmanouilidou and J. M. Rost, \jpb {\bf 39}, 4037 (2006); A. Emmanouilidou, P. Wang, and J. M. Rost, \prl {\bf 100}, 063002 (2008)]. This finding is in conflict with the expected Wannier break-up dynamics of three electrons moving at mutual angles of 120$^{\circ}$, which is expected to hold at energies a few eV above threshold. We use our quantum-mechanical approach to explore the physical mechanisms behind this unusual break-up configuration.
Zur automatischen Klassifikation von 3D-Punktwolken : Landvermessung mittels Laserscanning und digitaler Bildanalyse
Creators: name: Sester, Monika
name: Politz, Florian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2022
Subjects: subject: Forschungseinrichtung
subject: Klimaänderung
subject: Erdoberfläche
subject: Geologie
subject: Ressourcen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Die Landesvermessung hat zum Ziel, ein sehr genaues Geländemodell von Landesflächen zu erstellen, da diese zum Beispiel für den Hochwasserschutz, die Trassenplanung oder ähnliches wichtig sind. Am Institut für Kartographie und Geoinformatik werden in einem Projekt zusammen mit dem FZ:GEO-Partner LGLN (Landesvermessung und Geobasisdaten Niedersachsen) sowie den Landesvermessungen in Schleswig-Holstein und Mecklenburg-Vorpommern KI-Methoden und im Speziellen Deep Learning eingesetzt, um aus großen Datenmengen automatisiert und dennoch präzise Geländemodelle erstellen zu können.
title: Maßarbeit. Ein Nürnberger Goldschlägermaß und der lange Weg bis zu seiner Bewilligung
Creators: name: Keller, Anke
Publisher: name: University Library Heidelberg
Year: 2015

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 47 (2015): KulturGut: aus der Forschung der Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
Streamer propagation in humid air
Creators: name: Malagón-Romero, A.
name: Luque, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We investigate the effect of humidity on the propagation of streamers in air. We present a minimal set of chemical reactions that takes into account the presence of water in a nonthermal air plasma and considers ionization, attachment, detachment, recombination and ion conversion including water cluster formation. We find differences in streamer propagation between dry and humid air that we attribute mostly to an enhanced effective attachment rate in humid air, leading to higher breakdown electric field and threshold field for propagation. This higher effective attachment rate in humid conditions leads to a faster decay of the conductivity in the streamer channel, which hinders the accumulation of charge in the streamer head. In some cases a propagating streamer solution still exists at the expense of a smaller radius and lower velocity. In other cases a high humidity leads to the stagnation of the streamer. We finally discuss how all these statements may affect streamer branching and the dimensions and lifetime of a streamer corona.
What Shapes Supernova Remnants?
Creators: name: Lopez, Laura A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Evidence has mounted that Type Ia and core-collapse (CC) supernovae (SNe) can have substantial deviations from spherical symmetry; one such piece of evidence is the complex morphologies of supernova remnants (SNRs). However, the relative role of the explosion geometry and the environment in shaping SNRs remains an outstanding question. Recently, we have developed techniques to quantify the morphologies of SNRs, and we have applied these methods to the extensive X-ray and infrared archival images available of Milky Way and Magellanic Cloud SNRs. In this proceeding, we highlight some results from these studies, with particular emphasis on SNR asymmetries and whether they arise from "nature" versus "nurture".
description: 4 pages, proceeding from IAU Symposium 296: Supernova Environmental Impacts
title: Das Ausstellungsprojekt für 1985. 10. Mai bis 25. August 1985. Leben und Arbeiten im Industriezeitalter. Eine Ausstellung zur Wirtschafts- und Sozialgeschichte Bayerns seit 1850. Sozialpolitik um 1900 - "Jedem Deutschen wöchentlich ein Bad!"
Creators: name: Foerster, Cornelia
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Self-Consistent Measurement and State Tomography of an Exchange-Only Spin Qubit
Creators: name: Medford, J.
name: Beil, J.
name: Taylor, J. M.
name: Bartlett, S. D.
name: Doherty, A. C.
name: Rashba, E. I.
name: DiVincenzo, D. P.
name: Lu, H.
name: Gossard, A. C.
name: Marcus, C. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report initialization, complete electrical control, and single-shot readout of an exchange-only spin qubit. Full control via the exchange interaction is fast, yielding a demonstrated 75 qubit rotations in under 2 ns. Measurement and state tomography are performed using a maximum-likelihood estimator method, allowing decoherence, leakage out of the qubit state space, and measurement fidelity to be quantified. The methods developed here are generally applicable to systems with state leakage, noisy measurements, and non-orthogonal control axes.
description: contains Supplementary Information
Compressed SVD-Based L+S Model to Reconstruct Undersampled Dynamic MRI Data Using Parallel Architecture
Creators: name: Shafique, Muhammad
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400304
subject: Biomedical imaging

description: Compressed SVD Based L+S Model to Reconstruct Undersampled Dynamic MRI Data Using Parallel Architecture
title: Das Ausstellungsprojekt für 1985. 10. Mai bis 25. August 1985. Leben und Arbeiten im Industriezeitalter. Eine Ausstellung zur Wirtschafts- und Sozialgeschichte Bayerns seit 1850. Technik, die wir brauchen
Creators: name: Thesing, Susanne
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
title: Сравнительная характеристика склонности к недосыпанию и уровень удовлетворённости качеством жизни у студентов с регулярной и нерегулярной дефекацией
Creators: name: Глущенко, Вита
name: Шемеровский, Константин
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Методом анкетирования выявлены функциональные нарушения сна в виде депривации сна у 97% и функциональные нарушения пищеварительного тракта в виде сдвига акрофазы циркадианного ритма кишечника у 64% студентов-медиков. Умеренная и тяжелая брадиэнтерия с отсутствием утренней акрофазы ритма кишечника обнаружены у 26% обследованных лиц. Недосыпание около 4 часов в сутки у лиц с брадиэнтерией встречалось почти в 2 раза чаще, чем у лиц с эуэнтерией. Пониженный уровень качества жизни (ниже 40% от оптимального) при брадиэнтерии встречался в 4 раза чаще, чем при эуэнтерии. Выявленные виды десинхроноза (нарушения регулярности циркадианного ритма организма человека) — десинхроноз мозга и десинхроноз кишечника — ассоциированы с понижением уровня качества жизни, связанного со здоровьем.
title: Оценка изменений в функциональном состоянии организма пациентов на фоне остеопатической коррекции
Creators: name: Егорова, Ирина
name: Бучнов, Александр
name: Раймунд, Энгель
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: На фоне повышенного эмоционального напряжения (операторы компьютеров) проведена оценка эффективности остеопатической коррекции функционального состояния организма 12 пациенток в возрасте около 23,0±0,8 лет. В динамике исследования оценивались изменения значений показателей остеопатического статуса, функционального состояния организма (функциональное состояние ЦНС, психическое состояние) непосредственно до остеопатической коррекции и сразу после. Показано, что сразу после остеопатической коррекции отмечалось существенное улучшение функционального состояния ЦНС пациенток.
Phonon excitations of composite-fermion Landau levels
Creators: name: Schulze-Wischeler, F.
name: Hohls, Frank
name: Zeitler, U.
name: Reuter, D.
name: Wieck, A.D.
name: Haug, Rolf J.
Publisher: name: College Park, MD : American Physical Society
Year: 2004
Subjects: subject: Electron mobility
subject: Fermions
subject: Ground state
subject: Integral equations
subject: Lattice constants
subject: Magnetic fields
subject: Ohmic contacts
subject: Photoconductivity
subject: Photoluminescence
subject: Quantum theory
subject: Semiconducting aluminum compounds
subject: Semiconducting gallium arsenide
subject: Thermodynamics
subject: Electron densities
subject: Landau levels
subject: Phonon excitations
subject: Phonon gaps
subject: Phonons
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The phonon excitations of fractional quantum Hall (FQH) states at filling factors ν =1÷3,2÷5, 4÷7, 3÷5, 4÷3, and 5÷3 were investigated. The excitations were found to be based on Landau-level transitions of composite fermions (CF). It was observed that at filling factor ν = 2÷3, a linear field dependence of the excitation energy in the high field regime showed a spin transition, which was excited by the phonons. All the transport gaps, except the one measured at ν = 2÷3, were found to be lower than the phonon excitation gaps due to disorder effects and because temperature was also coupled to spin flip excitations.
Gravimetrische Erfassung von Klimawandelprozessen : Geodäsie nutzt technologische Entwicklungen der Quantenphysik
Creators: name: Müller, Jürgen
name: Schilling, Manuel
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2022
Subjects: subject: Forschungseinrichtung
subject: Klimaänderung
subject: Erdoberfläche
subject: Geologie
subject: Ressourcen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Die enge interdisziplinäre Kooperation zwischen Physik und Geodäsie erlaubt die Entwicklung und Anwendung neuartiger gravimetrischer Messmethoden, um klimarelevante Massenvariationen auf der Erde zu erfassen. Prof. Dr.-Ing. habil. Jürgen Müller vom Institut für Erdmessung der Leibniz Universität Hannover und Dr.-Ing. Manuel Schilling vom Institut für Satellitengeodäsie und Inertialsensorik des Deutschen Zentrums für Luft- und Raumfahrt geben einen Überblick über die Möglichkeiten, die die quanten-basierte Geodäsie für die Klimaforschung bietet.
Bewertung der Störaussendung von Hochvolthalbleitern für Elektrofahrzeuge
Creators: name: Trebeck, M.
name: Richter, M.
name: Körber, Bernd
name: Enzinger, T.
name: Rinklef, T.
Publisher: name: Berlin : VDE-Verlag
Year: 2014
Subjects: subject: Schaltvorgang
subject: Elektrofahrzeug
subject: Kraftfahrzeug
subject: Wechselrichter
subject: Bewertungsverfahren
subject: Messverfahren
subject: Randbedingung
subject: Störsignal
subject: Frequenzbereich
subject: Vergleichsmessung
subject: Elektronikgerät
subject: Halbleiterbauelement
subject: Validierung
subject: Störaussendung
subject: Messaufbau
subject: EMV-Anforderung
subject: Messung der elektromagnetischen Kompatibilität
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: Um die Störaussendung von Hochvoltsystemen für Kraftfahrzeuge gezielt bewerten zu können, sind EMV-Messungen und messtechnische Untersuchungen zur Verkopplung der Störgrößen auf den verschiedenen Integrationsebenen notwendig. Zur gezielten EMV-Optimierung des Traktionssystems sind Messverfahren zur Analyse der Einzelkomponenten notwendig. Ausgehend vom Entwicklungsprozess werden die Untersuchungen bei Hochvolthalbleitern auf Schaltkreisebene (Modul) begonnen. Bei getakteter Arbeitsweise ist der Halbleiter im Umrichtermodul die Störquelle. Ein geeignetes Messverfahren für diese Module muss grundsätzliche Einflüsse auf die Störaussendung, die sich aus dem Aufbau der Module ergeben, aufzeigen können. Da auf dem Gebiet der Elektromobilität noch keine EMV-Messverfahren für diese Anwendung genormt sind, wird nachfolgend eine solche Messspezifikation beschrieben.
Juncus trifidus
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: J. trifidus L. ssp. eu-trifidus A. et G. Cat. 354. Bis gegen 3300 m: bei der Hörnlihütte ob Zermatt (Thellung 1922). Var. fallax Beauverd - Angegeben von Beauverd von Trient, Liddes und Meiden.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Artificial Intelligence Implications for Research Integrity and Scholarly Publishing - presentation at the 3rd AEUP Conference "Publishing in Nervous Times"
Creators: name: Eaton, Sarah Elaine
Publisher: name: Zenodo
Year: 2023
Subjects: artificial intelligence
research integrity
scholarly publishing
academic publishing
scholarly communication

description: A presentation by Sarah Elaine Eaton about Artificial Intelligence Implications for Research Integrity and Scholarly Publishing presented at the 3rd AEUP Conference "Publishing in Nervous Times" on 16 May 2023 in Tallinn, Estonia.
Whose lives matter? Race, public opinion, and military conflict
Creators: name: Hua, Whitney
name: Jamieson, Thomas
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2023
Subjects: classificationCode: 4408
subject: Political science
subject: FOS: Political science
classificationCode: 44
subject: Human society

description: No description supplied
title: Арктика во внешней политике Швеции: основные тренды современности
Creators: name: Гехт, Антон
name: Цверианашвили, Иван
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Анализируется арктическое направление современной внешней политики Швеции, окончательное оформившееся в своей нынешней форме в начале 2010-х гг., в связи принятием национальной стратегии. Отмечается, что в настоящий момент Швеция не обладает необходимым авторитетом в Арктике, который позволил бы ей успешно реализовывать собственные идеи и проекты. Основным рычагом реализации арктического вектора внешней политики Швеции остаются международные и региональные организации, к примеру, Арктический совет или Совета Баренцева / Евроарктического региона. Для Швеции сегодня характерна политика интернационализации Арктики и привлечения максимального числа участников для решения проблем в регионе, в том числе из-за пределов Европы. Весьма вероятно, что Швеция станет одним из союзников грядущей экспансии Китайской Народной республики в Арктику. Подвергается сомнению позиция ряда исследователей о ярко выраженном военном направлении арктического вектора внешней политики Швеции. Кроме того, основными направлениями действий Швеции в арктическом регионе остаются научно-исследовательская деятельность, забота о сохранении климата, улучшение социально-экономического положения коренных северных народов (в первую очередь, саамов), попытка выработки единого международного арктического законодательства, попытка развития экономических связей, забота о военном статусе Арктики и т.д. В своем арктическом внешнеполитическом векторе Швеция придерживается традиционных для себя принципов ― уважения всех участников международных отношений, опоры на нормы международного права, продолжения общей линии нейтралитета в национальной внешней политике. Приоритетом арктического вектора внешней политики этой скандинавской страны можно считать сохранение и укрепление текущих позиций в регионе. Швеция рассматривает Арктику и как площадку для ведения инновационной политики, выработки новых форм партнёрства и взаимодействия, в том числе с Россией.
Flume
Creators: name: Goodman, Andrew
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 3606
subject: Visual arts

description: Flume was a sculptural intervention into the connecting doorways of gallery two, providing an provocative and intimate moment of transition and a tactile connection to the fabric of the building, where the qualities of thresholding are translated into a responsive and affectual environment.
Real-world two-photon interference and proof-of-principle quantum key distribution immune to detector attacks
Creators: name: Rubenok, Allison
name: Slater, Joshua A.
name: Chan, Philip
name: Lucio-Martinez, Itzel
name: Tittel, Wolfgang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Several vulnerabilities of single photon detectors have recently been exploited to compromise the security of quantum key distribution (QKD) systems. In this letter we report the first proof-of-principle implementation of a new quantum key distribution protocol that is immune to any such attack. More precisely, we demonstrated this new approach to QKD in the laboratory over more than 80 km of spooled fiber, as well as across different locations within the city of Calgary. The robustness of our fibre-based implementation, together with the enhanced level of security offered by the protocol, confirms QKD as a realistic technology for safeguarding secrets in transmission. Furthermore, our demonstration establishes the feasibility of controlled two-photon interference in a real-world environment, and thereby removes a remaining obstacle to realizing future applications of quantum communication, such as quantum repeaters and, more generally, quantum networks.
description: 10 pages, 3 figures. arXiv admin note: substantial text overlap with arXiv:1204.0738
The Pattern is in the Details: An Evaluation of Interaction Techniques for Locating, Searching, and Contextualizing Details in Multivariate Matrix Visualizations
Creators: name: Yang, Yalong
name: Xia, Wenyu
name: Lekschas, Fritz
name: Nobre, Carolina
name: Krueger, Robert
name: Pfister, Hanspeter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: Matrix visualizations are widely used to display large-scale network, tabular, set, or sequential data. They typically only encode a single value per cell, e.g., through color. However, this can greatly limit the visualizations' utility when exploring multivariate data, where each cell represents a data point with multiple values (referred to as details). Three well-established interaction approaches can be applicable in multivariate matrix visualizations (or MMV): focus+context, pan&zoom, and overview+detail. However, there is little empirical knowledge of how these approaches compare in exploring MMV. We report on two studies comparing them for locating, searching, and contextualizing details in MMV. We first compared four focus+context techniques and found that the fisheye lens overall outperformed the others. We then compared the fisheye lens, to pan&zoom and overview+detail. We found that pan&zoom was faster in locating and searching details, and as good as overview+detail in contextualizing details.
description: To appear in the ACM CHI Conference on Human Factors in Computing Systems (CHI 2022)
Bodenerosion als Risiko für die Landwirtschaft : Neue Methoden quantifizieren den Bodenverlust durch Wasser auf Äckern
Creators: name: Burkhard, Benjamin
name: Steinhoff-Knopp, Bastian
name: Ott, Simone
name: Paffenholz, Jens-André
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2022
Subjects: subject: Forschungseinrichtung
subject: Klimaänderung
subject: Erdoberfläche
subject: Geologie
subject: Ressourcen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Bodenerosion durch Wasser gefährdet weltweit Böden. Verschiedene Politikinstrumente definieren Maßnahmen zum Schutz der Böden. Ein Baustein dieser Instrumente sind Monitoringprogramme zur Beobachtung des Erosionsgeschehens und zur Quantifizierung des Bodenabtrags. Wissenschaftlerinnen und Wissenschaftler des Instituts für Physische Geographie und Landschaftsökologie und des Institute of Geo-Engineering der Technischen Universität Clausthal entwickeln gemeinsam Methoden zur hochaufgelösten Quantifizierung des Bodenabtrags. Dazu nutzen sie auf Agrarflächen moderne geodätische Erfassungstechnik, wie Laserscanner und Drohnen und erstellen detaillierte 3D-Modelle der Bodenoberflächen als Grundlage für die Abtragsquantifizierung.
title: Узбекистан в освоении Нечернозёмной зоны России (1975—1985 гг.)
Creators: name: Ишанходжаева, Замира
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: На базе материалов из архивных фондов ЦГА РУз, текущих архивов Министерства водного хозяйства РУз, материалов прессы и интервью с участниками освоения исследовано освоение российского Нечерноземья посланцами Узбекистана.
Der Boden als Wasserspeicher : Nuklear Magnetische Resonanz zur Bodenfeuchtebestimmung
Creators: name: Müller-Petke, Mike
name: Bachmann, Jörg
name: Guggenberger, Georg
name: Costabel, Stephan
name: Hiller, Thomas
name: Göbel, Marc-Oliver
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2022
Subjects: subject: Forschungseinrichtung
subject: Klimaänderung
subject: Erdoberfläche
subject: Geologie
subject: Ressourcen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Aktuell ausgelöst durch die ausgedehnten Trockenphasen der vergangenen Jahre gewinnen die in Böden gespeicherten Wasservorräte und deren Verfügbarkeit im Jahresverlauf erhöhte Aufmerksamkeit. Wissenschaftler vom Institut für Geologie, vom Institut für Bodenkunde, dem Leibniz Institut für Angewandte Geophysik (LIAG) sowie von der Bundesanstalt für Geowissenschaften und Rohstoffe (BGR) forschen mittels innovativer Feldmethoden aus dem Bereich störungsfrei arbeitender geophysikalischer Messverfahren an der Bodenfeuchtebestimmung.
Unsichtbar wirksam : Bodenmikroaggregate: kleine Strukturen mit großer Wirkung
Creators: name: Guggenberger, Georg
name: Peth, Stephan
name: Felde, Vincent
name: Dultz, Stefan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2022
Subjects: subject: Forschungseinrichtung
subject: Klimaänderung
subject: Erdoberfläche
subject: Geologie
subject: Ressourcen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: In der Bodenforschung spielen Mikroaggregate eine besondere Rolle. Sie haben eine komplexe innere Architektur in der mikrobielle, biogeochemische und physikalische Prozesse in Wechselwirkung stehen, die bisher noch sehr wenig untersucht, aber von fundamentaler Bedeutung für die Funktionsfähigkeit von Böden sind. Wissenschaftler vom Institut für Bodenkunde versuchen daher, einen Beitrag zum mechanistischen Verständnis der Bildung und Funktion von Mikroaggregaten zu leisten.
From research activities to institutional piloting: the challenges of modernizing interfaces and data interoperability
Creators: name: Tostain, Sabine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: Research activities are generally observed and evaluated through the prism of their production and financial elements or team composition. In addition to standardized management indicators and bibliometrics, the French National Research Institute for Sustainable Development (IRD) has been building new indicators for the last ten years, based on the annual regulatory declarations of the Institute's researchers. Different quality management tools allow the evolution of the different interfaces. This source of data, more ''open'' and more ''useful'' through its integration into the Institute's information system, is adapted to the needs of the multi-year management of research at the IRD. The aim is twofold: (1) to make progress in the evaluation of research and in the mastery of information by all actors, (2) to enlighten as many actors as possible via more efficient digital circuits and tools. The purpose of this article is to explain how the IRD is changing the entire production chain and the indicators of researchers' activities to better map scientific activities.
description: in French language
title: Начальный период гитлеровской оккупации города Старая Русса по документам советских органов государственной безопасности
Creators: name: Ковалев, Борис
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Старая Русса находилась под гитлеровской оккупацией с августа 1941 по февраль 1944 года. Новым источником по изучению истории этого трагического периода в жизни города являются документы органов государственной безопасности. Свидетельства советских разведчиков давали достаточно объективную картину сложившейся тогда ситуации: проблемы, связанные с эвакуацией, немецкие репрессии против мирного населения, создание коллаборационистских органов управления. Эти показания дополняются воспоминаниями немецких военнослужащих, а также послевоенными советскими документами.
Application of Hopfield Network to Saccades
Creators: name: Washizawa, Teruyoshi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Human eye movement mechanisms (saccades) are very useful for scene analysis, including object representation and pattern recognition. In this letter, a Hopfield neural network to emulate saccades is proposed. The network uses an energy function that includes location and identification tasks. Computer simulation shows that the network performs those tasks cooperatively. The result suggests that the network is applicable to shift-invariant pattern recognition.
description: 6 pages, 6 figures
title: НЕКОТОРЫЕ АСПЕКТЫ ПРОКУРОРСКОГО НАДЗОРА ПО ВЫЯВЛЕНИЮ ПРЕСТУПЛЕНИЙ, УКРЫТЫХ ОТ УЧЕТА
Creators: name: Корнеев, Дмитрий
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье приведены и проанализированы статистические данные органов прокуратуры по выявленным нарушениям в сфере учетно-регистрационной дисциплины и укрытым преступлениям, рас-смотрен один из распространенных способов укрытия преступления от учета.
title: ИНСТИТУТ АРБИТРАЖНЫХ ЗАСЕДАТЕЛЕЙ КАК ПРОФЕССИОНАЛЬНЫЙ ЭЛЕМЕНТ В РАЗРЕШЕНИИ ЭКОНОМИЧЕСКИХ СПОРОВ
Creators: name: Красикова, Екатерина
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье рассматривается вопрос о целесообразности привлечения арбитражных заседателей в зависимости от специфики рассматриваемого дела в судебный процесс с целью повышения эффективного и качественного разрешения экономических споров.
Biocompatible gas bubble formation in laser induced titanium melts for implant prototyping
Creators: name: Shaikh, Aftab Ali
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: Foaming agent
subject: porosity
subject: titanium implant
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
NuSTAR and Chandra Insight into the Nature of the 3-40 keV Nuclear Emission in NGC 253
Creators: name: Lehmer, B. D.
name: Wik, D. R.
name: Hornschemeier, A. E.
name: Ptak, A.
name: Antoniou, V.
name: Argo, M. K.
name: Bechtol, K.
name: Boggs, S.
name: Christensen, F. E.
name: Craig, W. W.
name: Hailey, C. J.
name: Harrison, F. A.
name: Krivonos, R.
name: Leyder, J. -C.
name: Maccarone, T. J.
name: Stern, D.
name: Venters, T.
name: Zezas, A.
name: Zhang, W. W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present results from three nearly simultaneous NuSTAR and Chandra monitoring observations between 2012 Sep 2 and 2012 Nov 16 of local star-forming galaxy NGC 253. The 3-40 keV NuSTAR intensity of the inner 20 arcsec (~400 pc) nuclear region varied by a factor of ~2 across the three monitoring observations. The Chandra data reveal that the nuclear region contains three bright X-ray sources, including a luminous (L2-10 keV ~ few x 10^39 erg/s) point source ~1 arcsec from the dynamical center of the galaxy (within the 3sigma positional uncertainty of the dynamical center); this source drives the overall variability of the nuclear region at energies >3 keV. We make use of the variability to measure the spectra of this single hard X-ray source when it was in bright states. The spectra are well described by an absorbed (NH ~ 1.6 x 10^23 cm^-2) broken power-law model with spectral slopes and break energies that are typical of ultraluminous X-ray sources (ULXs), but not AGN. A previous Chandra observation in 2003 showed a hard X-ray point source of similar luminosity to the 2012 source that was also near the dynamical center (~0.4 arcsec); however, this source was offset from the 2012 source position by ~1 arcsec. We show that the probability of the 2003 and 2012 hard X-ray sources being unrelated is >>99.99% based on the Chandra spatial localizations. Interestingly, the Chandra spectrum of the 2003 source (3-8 keV) is shallower in slope than that of the 2012 hard X-ray source. Its proximity to the dynamical center and harder Chandra spectrum indicate that the 2003 source is a better AGN candidate than any of the sources detected in our 2012 campaign; however, we were unable to rule out a ULX nature for this source. Future NuSTAR and Chandra monitoring would be well equipped to break the degeneracy between the AGN and ULX nature of the 2003 source, if again caught in a high state.
description: Accepted for publication in ApJ (7 pages, 5 figures)
High transmittance, low emissivity glass covers for flat plate collectors: Applications and performance
Creators: name: Giovannetti, Federico
name: Föste, Sebastian
name: Ehrmann, Nicole
name: Rockendorf, Gunter
Publisher: name: London : Elsevier Ltd.
Year: 2012
Subjects: subject: Coated glass
subject: Flat plate collector
subject: Low emissivity
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Low emissivity coatings can significantly reduce radiative heat losses of glass panes for solar energy use. Their effectiveness is strongly dependent on their optical properties, which need to meet the requirements for the specific application. The paper analyses the performance of newly developed, highly transmitting and spectrally selective glass coatings based on transparent conductive oxides (TCO) for the use in flat plate collectors: Uncovered, single-glazed and double-glazed designs are taken into consideration. As functional layers both tin-doped indium oxide and aluminum-doped zinc oxide have been investigated. Collector efficiencies and annual collector yields are presented and compared to those of state-of-the-art collectors. Theoretical calculations are complemented by measurements on collector prototypes. The results show that a significant performance increase is accessible both in single-glazed collectors with low or non-selective absorbers and in double-glazed collectors with highly selective absorbers.
New Exotic 4-Manifolds via Luttinger Surgery on Lefschetz Fibrations
Creators: name: Akhmedov, Anar
name: Saglam, Kadriye Nur
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: In [2], the first author constructed the first known examples of exotic minimal symplectic $\CP#5\CPb$ and minimal symplectic 4-manifold that is homeomorphic but not diffeomorphic to $3\CP#7\CPb$. The construction in [2] uses Y. Matsumoto's genus two Lefschetz fibrations on $M = \mathbb{T}^{2}\times \mathbb{S}^{2} #4\CPb$ over $\mathbb{S}^2$ along with the fake symplectic $\mathbb{S}^{2} \times \mathbb{S}^{2}$ construction given in [1]. The main goal in this paper is to generalize the construction in [2] using the higher genus versions of Matsumoto's fibration constructed by Mustafa Korkmaz and Yusuf Gurtas on $M(k,n) = Σ_{k}\times \mathbb{S}^{2} #4n\CPb$ for any $k \geq 2$ and $n = 1$, and $k \geq 1$ and $n \geq 2$, respectively. Using our building blocks, we also construct symplectic 4-manifolds with the free group of rank $s \geq 1$ and various other finitely generated groups as the fundamental group.
description: 21 pages, 7 figures. One reference added, a few extra clarifying comments added
Photodissociation of carbon dioxide in singlet valence electronic states. I. Six multiply intersecting ab initio potential energy surfaces
Creators: name: Grebenshchikov, Sergy Yu.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The global potential energy surfaces of the first six singlet electronic states of CO$_2$, 1---3$^1/!A'$ and 1---3$^1/!A"$ are constructed using high level ab initio calculations. In linear molecule, they correspond to $\tilde{X}^1Σ_g^+$, $1^1Δ_u$, $1^1Σ_u^-$, and $1^1Π_g$. The calculations accurately reproduce the known benchmarks for all states and establish missing benchmarks for future calculations. The calculated states strongly interact at avoided crossings and true intersections, both conical and glancing. Near degeneracies can be found for each pair of six states and many intersections involve more than two states. In particular, a fivefold intersection dominates the Franck-Condon zone for the ultraviolet excitation from the ground electronic state. The seam of this intersection traces out a closed loop. All states are diabatized, and a diabatic $5\times 5$ potential matrix is constructed, which can be used in quantum mechanical calculations of the absorption spectrum of the five excited singlet valence states.
MPEC 2024-C42 : 2024 CH
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 CH

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: Wolfgang Gäfgen. Neueste Bleistift- und Tuschezeichnungen. 48. Künstler-Ausstellung im Faber-Castell Jubiläumsjahr 1761-1986 · 3. 2. - 31. 3. 86
Creators: name: Steding, Heinrich
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Criticality of cracks in PV modules
Creators: name: Kajari-Schröder, Sarah
name: Kunze, Iris
name: Köntges, Marc
Publisher: name: London : Elsevier Ltd.
Year: 2012
Subjects: subject: Artificial ageing
subject: Cracks
subject: PV module reliability
subject: Uniform mechanical load
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The evaluation of cracks in PV modules is a difficult task: cracks do not necessarily lead to a strong degradation in the power output of the module directly after the crack initiation. However, PV modules with cracks suffer from a lower stability of the power output under artificial ageing. This is partly because cracked cell areas can become electrically disconnected from the active cell area. Here we present the analysis of the criticality of cracks formed in a uniform load test. For this we evaluate cracks which may isolate cell areas. We observe 667 cracked cells in 27 PV modules with 60 cells each. Cracks parallel to the busbars constitute 50 % of the crack orientations in our experiments. This crack orientation has a high probability of having a potentially separated cell area Acrack of 16 to 24 % and can thus be considered to be of high criticality. We proceed by subjecting 12 of these PV modules to 200 cycles of a humidity-freeze test. A significant part of 29 % of the cracked cells shows an increased resistance across the cracks and 7% show isolated cell areas.
Juncus bufonius L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: J.bufonius L. Cat. 355 und 432. Verbreitet. Bis 2250 m: ob Findelen (Zermatt) gegen den Stellisee (Thellung 1922). Var. fasciculatus (Bertol.) Koch - l: Salanfe (Coquoz). Var. parvulus Hartman - 3: Ecône (Coquoz). Ssp. ambiguus (Guss.) Schinz et Keller - 3: Bei Stalden (Vispertal) (Koch, Gäumann und Kunz 1939).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Counting toroidal binary arrays
Creators: name: Ethier, S. N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05

description: A formula for the number of toroidal m x n binary arrays, allowing rotation of the rows and/or the columns but not reflection, is known. Here we find a formula for the number of toroidal m x n binary arrays, allowing rotation and/or reflection of the rows and/or the columns.
description: 8 pages, 0 figures
Hoy es distinto: políticas de la muerte y las aperturas a otra política
Creators: name: Gudynas, Eduardo
Publisher: name: Zenodo
Year: 2023
Subjects: necropolítica
biopolítica
desarrollo
aperturas ontológicas
política
Latinoamérica

description: Una revisión de las políticas del dejar morir a las personas y la Naturaleza en América Latina. La situación actual es distinta a anteriores crisis en tanto deriva hacia la necropolítica y su aceptación. Ante esa tendencia, un llamado a promover aperturas hacia mundos políticos organizados de otros modos. Presentación de una línea de reflexión y de la serie "Otra Política".
Multicolor and multi-spot observations of Starlink's Visorsat
Creators: name: Horiuchi, Takashi
name: Hanayama, Hidekazu
name: Ohishi, Masatoshi
name: Nakaoka, Tatsuya
name: Imazawa, Ryo
name: Kawabata, Koji S.
name: Takahashi, Jun
name: Onozato, Hiroki
name: Saito, Tomoki
name: Yamanaka, Masayuki
name: Nogami, Daisaku
name: Tampo, Yusuke
name: Kojiguchi, Naoto
name: Ito, Jumpei
name: Shibata, Masaaki
name: Schramm, Malte
name: Oasa, Yumiko
name: Kanai, Takahiro
name: Oide, Kohei
name: Murata, Katsuhiro L.
name: Hosokawa, Ryohei
name: Takamatsu, Yutaka
name: Imai, Yuri
name: Ito, Naohiro
name: Niwano, Masafumi
name: Takagi, Seiko
name: Ono, Tatsuharu
name: Kouprianov, Vladimir V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: This study provides the results of simultaneous multicolor observations for the first Visorsat (STARLINK-1436) and the ordinary Starlink satellite, STARLINK-1113 in the $U$, $B$, $V$, $g'$, $r$, $i$, $R_{\rm C}$, $I_{\rm C}$, $z$, $J$, $H$, and $K_s$ bands to quantitatively investigate the extent to which Visorsat reduces its reflected light. Our results are as follows: (1) in most cases, Virorsat is fainter than STARLINK-1113, and the sunshade on Visorsat, therefore, contributes to the reduction of the reflected sunlight; (2) the magnitude at 550 km altitude (normalized magnitude) of both satellites often reaches the naked-eye limiting magnitude ($<$ 6.0); (3) from a blackbody radiation model of the reflected flux, the peak of the reflected components of both satellites is around the $z$ band; and (4) the albedo of the near infrared range is larger than that of the optical range. Under the assumption that Visorsat and STARLINK-1113 have the same reflectivity, we estimate the covering factor, $C_{\rm f}$, of the sunshade on Visorsat, using the blackbody radiation model: the covering factor ranges from $0.18 \leq C_{\rm f} \leq 0.92$. From the multivariable analysis of the solar phase angle (Sun-target-observer), the normalized magnitude, and the covering factor, the phase angle versus covering factor distribution presents a moderate anti-correlation between them, suggesting that the magnitudes of Visorsat depend not only on the phase angle but also on the orientation of the sunshade along our line of sight. However, the impact on astronomical observations from Visorsat-designed satellites remains serious. Thus, new countermeasures are necessary for the Starlink satellites to further reduce reflected sunlight.
description: 31 pages, 9 figures, published in PASJ
Development of an insulated glass solar thermal collector
Creators: name: Giovannetti, Federico
name: Kirchner, Maik
name: Kliem, Francis
name: Hoeltje, Torben
Publisher: name: London : Elsevier Ltd.
Year: 2014
Subjects: subject: Building integration
subject: Flat plate collector
subject: Insulated glass
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Insulated glass solar thermal collectors result from the insertion of a solar absorber into the outer gap of a multiple glazed unit. Taking advantages from the manufacturing technology of the glass and window industry, a flexible and highly automated production as well as an easier and architecturally more appealing integration into the building envelope is expected. Ensuring long-term functionality, on the other hand, represents a very challenging development task due to high temperatures and to the thermally induced deformations of the solar absorber. The paper analyzes the behavior of this new kind of collector by means of theoretical calculations and experiments, focusing on both the performance and the reliability aspects. Efficiency measurements according to EN 12975 on prototypes with a slim design report specific values comparable to those of standard flat plate collectors (η0 = 0.78, a1 = 3.77 W/m2K, a2 = 0.011 W/m2K2 for a 50 mm thick, argon-filled prototype). Prolonged exposure to stagnation temperature and internal thermal shock-tests attest the durability of collector configurations featuring temperatureresistant components and suitable constructions, able to reduce and compensate the absorber deformation.
Beyond the nuclear starburst? Clustered star formation in major mergers
Creators: name: Powell, Leila C.
name: Bournaud, Frederic
name: Chapon, Damien
name: Teyssier, Romain
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent simulation work has successfully captured the formation of the star clusters that have been observed in merging galaxies. These studies, however, tend to focus on studying extreme starbursts, such as the Antennae galaxies. We aim to establish whether there is something special occurring in these extreme systems or whether the mechanism for cluster formation is present in all mergers to a greater or lesser degree. We undertake a general study of merger-induced star formation in a sample of 5 pc resolution adaptive mesh refinement simulations of low redshift equal-mass mergers with randomly-chosen orbital parameters. We find that there is an enhanced mass fraction of very dense gas that appears as the gas density probability density function evolves during the merger. This finding has implications for the interpretation of some observations; a larger mass fraction of dense gas could account for the enhanced HCN/CO ratios seen in ULIRGs and predicts that alpha_CO is lower in mergers, as for a given mass of H_2, CO emission will increase in a denser environment. We also find that as the star formation rate increases, there is a correlated peak in the velocity dispersion of the gas, which we attribute to increasing turbulence driven by the interaction itself. Star formation tends to be clumpy: in some cases there is extended clumpy star formation, but even when star formation is concentrated within the inner kpc (i.e. what may be considered a nuclear starburst) it still often has a clumpy, rather than a smooth, distribution. We find no strong evidence for a clear bimodality in the Kennicutt-Schmidt relation for the average mergers simulated here. Instead, they are typically somewhat offset above the predicted quiescent relation during their starbursts.
description: Accepted for publication in MNRAS. 16 pages, 8 figures, 1 table