GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    Publikationsdatum: 2022-05-26
    Beschreibung: © The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Ocean Modelling 121 (2018): 49-75, doi:10.1016/j.ocemod.2017.11.008.
    Beschreibung: Lagrangian analysis is a powerful way to analyse the output of ocean circulation models and other ocean velocity data such as from altimetry. In the Lagrangian approach, large sets of virtual particles are integrated within the three-dimensional, time-evolving velocity fields. Over several decades, a variety of tools and methods for this purpose have emerged. Here, we review the state of the art in the field of Lagrangian analysis of ocean velocity data, starting from a fundamental kinematic framework and with a focus on large-scale open ocean applications. Beyond the use of explicit velocity fields, we consider the influence of unresolved physics and dynamics on particle trajectories. We comprehensively list and discuss the tools currently available for tracking virtual particles. We then showcase some of the innovative applications of trajectory data, and conclude with some open questions and an outlook. The overall goal of this review paper is to reconcile some of the different techniques and methods in Lagrangian ocean analysis, while recognising the rich diversity of codes that have and continue to emerge, and the challenges of the coming age of petascale computing.
    Beschreibung: EvS has received funding from the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programme (grant agreement No 715386). This research for PJW was supported as part of the Energy Exascale Earth System Model (E3SM) project, funded by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research. Funding for HFD was provided by Grant No. DE-SC0012457 from the US Department of Energy. PB acknowledges support for this work from NERC grant NE/R011567/1. SFG is supported by NERC National Capability funding through the Extended Ellett Line Programme.
    Schlagwort(e): Ocean circulation ; Lagrangian analysis ; Connectivity ; Particle tracking ; Future modelling
    Repository-Name: Woods Hole Open Access Server
    Materialart: Article
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Journal of neurology 117-119 (1931), S. 570-584 
    ISSN: 1432-1459
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Zusammenfassung 1. Werden Plexuszellen länger als wenige Minuten nach dem Tode in situ gelassen, so neigen sie zu einem vakuolären Zerfall mit Verlust des Bürstensaumes. 2. Werden Plexuszellen operativ in einer kombinierten Bulbokapnin-Äthernarkose gewonnen, so zeigen sie eine starke Schwellung, die schließlich auch auf den Kern übergreift, und eine Ansammlung von Fett. 3. Unsere Versuche bestätigen, daß die Weedsche Lösung in die Plexuszellen eindringt. 4. Ebenso bestätigen sie Askanazys Beobachtung, daß Eisen in die Plexuszellen eindringt, wenn Erytrocyten in den Liquor gelangen. Ob es sich bei diesen beiden Vorgängen um eine passive Infiltration oder um eine aktive Resorption handelt, wagen wir noch nicht zu entscheiden. 5. Es hat sich kein Anhaltspunkt dafür ergeben, daß Fette oder Lipoide vom Liquorraum aus in den Plexus dringen. 6. Es fand sich nach Einspritzung gewaschener Erytrocyten ebenso nach Einspritzung von Luft oder Trypanblau in den Liquor eine Reaktion der Plexusepithelien, die wahrscheinlich eine nicht spezifische Antwort dieser Zellen auf Entzündungsreize darstellt. Sie besteht in einer trüben Schwellung mit Vermehrung der Mitochondrien und des Golgi-Apparates und des intrazellulären Fettes. Bei den Versuchen mit Blutinjektion wurden die Veränderungen bis zu 12 Tagen nach der Injektion studiert. In dieser Zeit vermindert sich die Kernfärbbarkeit, während die übrige Zelle schon zur Norm zurückkehrt. Der operative Teil der Versuche wurde im Physiologischen Institut durchgeführt. Für die Erlaubnis hierzu sind wir Herrn Prof. R. Lim zu herzlichem Dank verpflichtet.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    Publikationsdatum: 2021-02-08
    Beschreibung: Highlights: • Lagrangian ocean analysis is a powerful way to analyse the output of ocean circulation models • We present a review of the Kinematic framework, available tools, and applications of Lagrangian ocean analysis • While there are unresolved questions, the framework is robust enough to be used widely in ocean modelling Abstract: Lagrangian analysis is a powerful way to analyse the output of ocean circulation models and other ocean velocity data such as from altimetry. In the Lagrangian approach, large sets of virtual particles are integrated within the three-dimensional, time-evolving velocity fields. Over several decades, a variety of tools and methods for this purpose have emerged. Here, we review the state of the art in the field of Lagrangian analysis of ocean velocity data, starting from a fundamental kinematic framework and with a focus on large-scale open ocean applications. Beyond the use of explicit velocity fields, we consider the influence of unresolved physics and dynamics on particle trajectories. We comprehensively list and discuss the tools currently available for tracking virtual particles. We then showcase some of the innovative applications of trajectory data, and conclude with some open questions and an outlook. The overall goal of this review paper is to reconcile some of the different techniques and methods in Lagrangian ocean analysis, while recognising the rich diversity of codes that have and continue to emerge, and the challenges of the coming age of petascale computing.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    Publikationsdatum: 2011-08-26
    Beschreibung: The neutron leakage fluxes from the lunar surface are calculated by Monte Carlo transport code based on Geant4. The integral fluxes of fast neutrons, epi-thermal neutrons and thermal neutrons are analyzed. Numerical results for 20 kinds of lunar soils and 7 minerals show that the fast neutron fluxes are linearly related to the average atomic mass numbers of the lunar materials used in simulations. Meanwhile, the average atomic mass numbers are strongly modulated by the abundances of iron (Fe) and titanium (Ti), and a linear relationship between the average atomic mass numbers and the abundances of Fe and Ti is found. Furthermore, the results show that the ratios of epi-thermal to thermal fluxes for lunar soils are linearly related to the macroscopic absorption cross sections of lunar materials, and that the macroscopic absorption cross sections monotonically increase with the abundances of Fe and Ti by a simple function. Then we reach the conclusion that the neutron fluxes can p...
    Print ISSN: 1674-1137
    Thema: Physik
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 5
    Publikationsdatum: 2011-01-22
    Beschreibung: Five new oxygenated lignans with a dibenzocyclooctadiene skeleton, kadsuphilols P–T ( 1 – 5 ), and two new C 19 homolignans, kadsuphilols U and V ( 6 and 7 ), were isolated by chromatographic fractionation of an AcOEt extract of the stems of Kadsura philippinensis. The structures of the isolated metabolites were elucidated through extensive spectroscopic analysis including HR-ESI-MS and 2D-NMR (HMQC, COSY, and HMBC). The configuration at the chiral centers and at the biphenyl moiety were determined by interpretation of NOESY and CD data, respectively.
    Print ISSN: 0018-019X
    Digitale ISSN: 1522-2675
    Thema: Chemie und Pharmazie
    Publiziert von Wiley-Blackwell
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 6
    Publikationsdatum: 2011-01-11
    Beschreibung: Cheng-Yu Liu, Wei-Lung Tseng (Communication from Chem. Commun.) Cheng-Yu Liu, Chem. Commun., 2011, DOI: 10.1039/c0cc04591h To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry
    Print ISSN: 1359-7345
    Digitale ISSN: 1364-548X
    Thema: Chemie und Pharmazie
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 7
    Publikationsdatum: 2011-09-27
    Beschreibung: Author(s): Yun Cheng, Yu-Liang Yan, Dai-Mei Zhou, Xu Cai, Ben-Hao Sa, and Laszlo P. Csernai Collective flow in collisions between lead nuclei at the CERN Large Hadron Collider (LHC) are influenced by random initial state fluctuations, especially for odd harmonics. Here we extend fluctuation studies to longitudinal fluctuations, which may have significant effect on the rapidity distribution... [Phys. Rev. C 84, 034911] Published Mon Sep 26, 2011
    Schlagwort(e): Relativistic Nuclear Collisions
    Print ISSN: 0556-2813
    Digitale ISSN: 1089-490X
    Thema: Physik
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 8
    Publikationsdatum: 2018-09-13
    Beschreibung: Sustainability, Vol. 10, Pages 3259: An Application of Sustainable Development in Indigenous People’s Revival: The History of an Indigenous Tribe’s Struggle in Taiwan Sustainability doi: 10.3390/su10093259 Authors: Cheng-Yu Yu Community development is seen as a crucial factor to realize sustainable development and vice versa, and for indigenous peoples in particular due to their associations with nature and natural resources. However, historical exploitation of indigenous peoples has resulted in their underachievement worldwide. The popularization of the concept of sustainable development followed a series of international treaties and conventions that shed light on indigenous peoples’ revival. Drawing upon Michel Foucault’s notion of the power-knowledge relationship, this article uses a case study of an indigenous tribe, the Smangus in Taiwan, to demonstrate how a politically, socially and economically disadvantaged community incorporates their traditional norms and customs into the notion of sustainable development and reinterprets it to adapt the community’s conditions. By re-uniting the community and establishing a cooperative organization, the community has revived cohesion in their community. The community’s conduct is investigated through the United Nations’ Sustainable Development Goals 2015–2030, and the article illustrates how it fulfils three Targets and the extent to which they are fulfilled. To conclude, Smangus’ case remind us of the importance of achieving sustainable development goals on micro- and local levels, and the value of empowering local communities to pursue their own sustainable development goals according to their circumstances. This article ends with suggestions for future research, and suggests that more studies using such a bottom-up approach to sustainable development would help to accumulate knowledge and experiences to establish a pattern of success to help other disadvantaged communities, draw focus to the need to bridge the policy gaps between the United Nations and local communities, and recall attention to the role of micro- and local communities to achieve sustainable development goals.
    Digitale ISSN: 2071-1050
    Thema: Energietechnik
    Publiziert von MDPI Publishing
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 9
    Publikationsdatum: 2018-09-15
    Beschreibung: The Journal of Organic Chemistry DOI: 10.1021/acs.joc.8b01843
    Print ISSN: 0022-3263
    Digitale ISSN: 1520-6904
    Thema: Chemie und Pharmazie
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 10
    Publikationsdatum: 2018-07-04
    Beschreibung: Energies, Vol. 11, Pages 1743: A Dual-Voltage-Vector Model-Free Predictive Current Controller for Synchronous Reluctance Motor Drive Systems Energies doi: 10.3390/en11071743 Authors: Cheng-Kai Lin Jen-te Yu Hao-Qun Huang Jyun-Ting Wang Hsing-Cheng Yu Yen-Shin Lai For current control in power conversion and motor drive systems, there exist three classic methods in the literature and they are the hysteresis current control (HCC), the sine pulse-width modulation (SPWM), and the space vector pulse width modulation (SVPWM). HCC is easy to implement, but has relatively large current harmonic distortion as the disadvantage. On the other hand, the SPWM and SVPWM use modulation technique, commonly together with at least one proportional-integral (PI) regulator to reduce load current ripples, and hence demanding more computation time. This paper aims to improve the performance of a recently proposed new current control method—the single-voltage-vector model predictive current control (SVV-MPCC), for synchronous reluctance motor (SynRMs) drives. To that end, a dual-voltage-vector model-free predictive current control (DVV-MFPCC) for SynRMs is proposed. Unlike the SVV-MPCC that applies only a single voltage vector per sampling period, the proposed DVV-MFPCC is capable of providing two successive segmentary current predictions in the next sampling period through all possible combinations from any two candidate switching states increasing the number of applicable switching modes from seven to nineteen and reducing the prediction error effectively. Moreover, the new control does not utilize any parameters of the SynRM nor its mathematical model. The performance is effectively enhanced compared to that of SVV-MPCC. The working principle of the DVV-MFPCC will be detailed in this paper. Finally, the SVV-MPCC, the single-voltage-vector model-free predictive current control (SVV-MFPCC), the dual-voltage-vector model predictive current control (DVV-MPCC), and the DVV-MFPCC are realized to control the stator currents of SynRM through a 32-bit microcontroller TMS320F28377S. Experimental results are provided to validate the new method and verify that the DVV-MFPCC performs better than do the SVV-MPCC, the SVV-MFPCC, and the DVV-MPCC.
    Digitale ISSN: 1996-1073
    Thema: Energietechnik
    Publiziert von MDPI Publishing
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...