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  • 1
    Online-Ressource
    Online-Ressource
    The Earliest Stages of Massive Clustered Star Formation : Fragmentation of Infrared Dark Clouds. (2014)
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Details
    Schlagwort(e): Stars -- Formation. ; Electronic books.
    Materialart: Online-Ressource
    Seiten: 1 online resource (160 pages)
    Ausgabe: 1st ed.
    ISBN: 9783662449691
    Serie: Springer Theses Series
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=1968665
    DDC: 523.8
    Sprache: Englisch
    Anmerkung: Intro -- Supervisor's Foreword -- Acknowledgments -- Contents -- Acronyms -- 1 Scientific Background -- 1.1 Star Formation -- 1.1.1 A Brief History -- 1.1.2 Formation of Low-Mass, Isolated Stars -- 1.1.3 Formation of High-Mass Stars in Clusters -- 1.1.4 Questions Raised -- 1.2 Targets and Observing Strategy -- 1.2.1 Infrared Point Sources -- 1.2.2 Infrared Dark Clouds -- 1.2.3 Radio Interferometer -- 1.3 Thesis Outline -- References -- 2 An Infrared Point Source Survey -- 2.1 Introduction -- 2.2 Sample -- 2.3 Observations with KOSMA -- 2.4 Results -- 2.4.1 Survey -- 2.4.2 Mapping -- 2.5 Discussion -- 2.5.1 The Line Width-Luminosity Relation -- 2.5.2 Core Masses and Line Widths -- 2.6 Individual Analyses -- 2.7 Conclusions -- References -- 3 The ``Dragon'' Nebula G28.34+0.06 -- 3.1 Introduction -- 3.2 Observations -- 3.2.1 Submillimeter Array -- 3.2.2 Very Large Array -- 3.3 Results -- 3.3.1 Hierarchical Fragmentation -- 3.3.2 CO Outflows -- 3.3.3 Ammonia Emission -- 3.3.4 Maser Emission -- 3.4 Discussion -- 3.4.1 Massive Star Formation Through an Intermediate-Mass Stage -- 3.4.2 Feedbacks from Star Formation: Outflow and Radiation -- 3.4.3 Magnetic Fields and the Origin of the X-shaped Filamentary System -- 3.5 Conclusions -- References -- 4 The ``Snake'' Nebula G11.11--0.12 -- 4.1 Introduction -- 4.1.1 Initial Fragmentation and Star Formation -- 4.1.2 Targets: Dense Clumps in IRDC G11.110.12 -- 4.2 Observations -- 4.2.1 Submillimeter Array -- 4.2.2 Very Large Array -- 4.3 Results -- 4.3.1 Hierarchical Structure -- 4.3.2 H2O and CH3OH Masers -- 4.3.3 Protostellar Outflows -- 4.3.4 Chemical Differentiation -- 4.3.5 NH3 Emission and Temperature -- 4.4 Analysis and Discussion -- 4.4.1 Fragmentation Analysis -- 4.4.2 NH3 Ortho/Para Ratio -- 4.4.3 P1-SMA1: An Outflow/Disc System in a Proto-Binary? -- 4.4.4 Evolutionary Sequence. , 4.4.5 Condensation Mass Function -- 4.5 Conclusions -- References -- 5 The Infrared Dark Cloud G30.88+0.13 -- 5.1 Introduction -- 5.2 Observations -- 5.2.1 Very Large Array -- 5.2.2 Green Bank 100m Telescope -- 5.2.3 Submillimeter Array -- 5.3 Results -- 5.3.1 Dense Molecular Gas and Dust Continuum -- 5.3.2 Two Cloud Components Along Line-of-Sight -- 5.3.3 H2O Masers -- 5.4 Discussion -- 5.4.1 Association of Dust Peaks and H2O Masers with the NH3 Gas -- 5.4.2 Nature of the C2 Clump: A Massive Protocluster in the Making -- 5.4.3 Nature of the C1 Clump: A Massive Precluster Clump? -- 5.4.4 Fragmentation and Massive Star Formation -- 5.5 Conclusions -- References -- 6 A New Evolutionary Picture -- 6.1 Thesis Summary -- 6.2 Evolutionary Sequence -- 6.3 A New Picture -- 6.4 Future: Importance of Filaments -- References.
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    GEOMAR EBL
  • 2
    Online-Ressource
    Online-Ressource
    Exact Boundary Controllability of Nodal Profile for Quasilinear Hyperbolic Systems. (2016)
    Singapore :Springer Singapore Pte. Limited,
    Details
    Schlagwort(e): Differential equations, partial. ; Electronic books.
    Materialart: Online-Ressource
    Seiten: 1 online resource (114 pages)
    Ausgabe: 1st ed.
    ISBN: 9789811028427
    Serie: SpringerBriefs in Mathematics Series
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=4737166
    DDC: 515.35
    Sprache: Englisch
    Anmerkung: Intro -- Preface -- Contents -- 1 First Order Quasilinear Hyperbolic Systems -- 1.1 1-D First Order Quasilinear Hyperbolic Systems -- 1.2 Characteristic Form of Hyperbolic System -- 1.3 Reducible Quasilinear Hyperbolic System. Riemann Invariants -- 1.4 Saint-Venant System for Unsteady Flows on a Single Open Canal -- 1.5 Semi-global C1 Solutions to the Mixed Initial-Boundary Value Problem -- 1.6 Exchanging the Role of t and x -- 1.7 Uniqueness of C1 Solution to the One-Sided Mixed Initial-Boundary Value Problem -- 2 Quasilinear Wave Equations -- 2.1 1-D Quasilinear Wave Equations -- 2.2 Semi-global C2 Solutions to the Mixed Initial-Boundary Value Problem -- 2.3 Uniqueness of C2 Solution to the One-Sided Mixed Initial-Boundary Value Problem -- 3 Semi-global Piecewise Classical Solutions on a Tree-Like Network -- 3.1 Introduction -- 3.2 Semi-global Piecewise C1 Solutions to 1-D First Order Quasilinear Hyperbolic Systems on a Tree-Like Network -- 3.3 Semi-global Piecewise C2 Solutions to 1-D Quasilinear Wave Equations on a Tree-Like Network -- 4 Exact Boundary Controllability of Nodal Profile for 1-D First Order Quasilinear Hyperbolic Systems -- 4.1 Introduction -- 4.2 Definitions and Main Results -- 4.3 Proof of Theorem 4.1 -- 4.4 Proof of Theorem 4.2 -- 4.5 Exact Boundary Controllability of Nodal Profile for Saint-Venant System -- 4.6 Remarks -- 5 Exact Boundary Controllability of Nodal Profile for 1-D First Order Quasilinear Hyperbolic Systems on a Tree-Like Network -- 5.1 Exact Boundary Controllability of Nodal Profile for Saint-Venant System on a Star-Like Network of Open Canals (Case 1) -- 5.2 Exact Boundary Controllability of Nodal Profile for Saint-Venant System on a Star-Like Network of Open Canals (Case 2). , 5.3 Exact Boundary Controllability of Nodal Profile for Saint-Venant System on a Star-Like Network of Open Canals (Case 3) -- 5.4 Exact Boundary Controllability of Nodal Profile for Saint-Venant System on a Star-Like Network of Open Canals (Case 4) -- 5.5 Exact Boundary Controllability of Nodal Profile for Saint-Venant System on a Star-Like Network of Open Canals (Case 5) -- 5.6 Exact Boundary Controllability of Nodal Profile for Saint-Venant System on a Tree-Like Network of Open Canals -- 5.7 Exact Boundary Controllability of Nodal Profile for Saint-Venant System on a Tree-Like Network of Open Canals (Continued) -- 5.8 Remarks -- 6 Exact Boundary Controllability of Nodal Profile for 1-D Quasilinear Wave Equations -- 6.1 Introduction -- 6.2 Definitions and Main Results -- 6.3 Proof of Theorem 6.1 -- 6.4 Proof of Theorem 6.2 -- 6.5 Remarks -- 7 Exact Boundary Controllability of Nodal Profile for 1-D Quasilinear Wave Equations on a Planar Tree-Like Network of Strings -- 7.1 Introduction -- 7.2 Exact Boundary Controllability of Nodal Profile for 1-D Quasilinear Wave Equations on a Star-Like Network of Strings -- 7.3 Exact Boundary Controllability of Nodal Profile for 1-D Quasilinear Wave Equations on a Star-Like Network of Strings (Continued) -- 7.4 Exact Boundary Controllability of Nodal Profile for Quasilinear Wave Equations on a Planar Tree-Like Network of Strings -- 7.5 Exact Boundary Controllability of Nodal Profile for Quasilinear Wave Equations on a Planar Tree-Like Network (Continued) -- 7.6 Remarks -- References -- Index.
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    GEOMAR EBL
  • 3
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    Unbekannt
    Deuterium isotopic records in daily precipitation samples at site Lianhuasi, Southeastern Tibetan Plateau (2020)
    PANGAEA
    Details
    Publikationsdatum: 2023-01-13
    Schlagwort(e): DATE/TIME; Lianhuasi; Tibetan Plateau; Water sample, rain; WSR; δ Deuterium, precipitation
    Materialart: Dataset
    Format: text/tab-separated-values, 101 data points
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    DATA PANGAEA
  • 4
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    Deuterium isotopic records in daily precipitation samples at site Taizimiao, Southeastern Tibetan Plateau (2020)
    PANGAEA
    Details
    Publikationsdatum: 2023-01-13
    Schlagwort(e): DATE/TIME; Taizimiao; Tibetan Plateau; Water sample, rain; WSR; δ Deuterium, precipitation
    Materialart: Dataset
    Format: text/tab-separated-values, 72 data points
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    DATA PANGAEA
  • 5
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    Deuterium isotopic records in daily precipitation samples at site Lijiang, Southeastern Tibetan Plateau (2020)
    PANGAEA
    Details
    Publikationsdatum: 2023-01-13
    Schlagwort(e): DATE/TIME; Lijiang; Tibetan Plateau; Water sample, rain; WSR; δ Deuterium, precipitation
    Materialart: Dataset
    Format: text/tab-separated-values, 115 data points
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    DATA PANGAEA
  • 6
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    Deuterium isotopic records in daily precipitation samples at site Mingyong, Southeastern Tibetan Plateau (2020)
    PANGAEA
    Details
    Publikationsdatum: 2023-01-13
    Schlagwort(e): DATE/TIME; Mingyong; Tibetan Plateau; Water sample, rain; WSR; δ Deuterium, precipitation
    Materialart: Dataset
    Format: text/tab-separated-values, 57 data points
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    DATA PANGAEA
  • 7
    facet.materialart.
    Unbekannt
    Daily precipitation δD records at 4 sites in Mount Yulong and Mount Meili regions of Southeastern Tibetan Plateau (2020)
    PANGAEA
    Details
    Publikationsdatum: 2023-01-30
    Beschreibung: Daily precipitation samples were collected at 4 sites in Mount Yulong and Mount Meili regions of Southeastern Tibetan Plateau and analyzed for isotopic composition. We share here the deltaD observations, and some ancillary data useful to interpret the isotopic observations (meteorological observations, simulation with the isotope-enabled general circulation model, remote-sensing water vapor deltaD observations by IASI).
    Schlagwort(e): precipitation isotopes; Tibetan Plateau
    Materialart: Dataset
    Format: application/zip, 7 datasets
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    DATA PANGAEA
  • 8
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    Daily meteorological observations at site Lijiang, Southeastern Tibetan Plateau (2020)
    PANGAEA
    Details
    Publikationsdatum: 2023-06-19
    Schlagwort(e): DATE/TIME; HEIGHT above ground; Humidity, relative, daily mean; Lijiang; Precipitation, daily total; Temperature, air, daily mean; Tibetan Plateau; Water sample, rain; Wind direction description; WSR
    Materialart: Dataset
    Format: text/tab-separated-values, 304 data points
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    DATA PANGAEA
  • 9
    Digitale Medien
    Digitale Medien
    Radiation damage behavior of LiNbO3 crystal by MeV F ion implantation (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 74 (1993), S. 1625-1628 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: X, Y, and Z crystalline cut LiNbO3 crystals were implanted by 1.0 MeV F ions with a dose of 1×1015 ions/cm.2 The virgin and implanted LiNbO3 crystals were investigated using the Rutherford backscattering/channeling technique. The obtained minimum yields of virgin crystals were 4%, 8%, and 6% for X-, Y-, and Z-cut LiNbO3 crystals, respectively, because of their different arrangements of lattice sites in channeling direction. The measured damage profiles are also influenced by the arrangement of lattice sites in channeling measurements. The damage profiles of X-cut LiNbO3 crystal induced by 1.0 MeV F+ at a fluence range of 1×1014–3×1015 ions/cm2 have been studied and compared with the Transport of Ions in Matter, version 1990 calculation. It has been found that not only the nuclear energy deposition but also the electronic energy deposition influences the defect production.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.354811
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    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Lateral spread effects in the implantation of Ar+, Xe+, and Hg+ in Si3N4 films (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 72 (1992), S. 4003-4006 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: 80–100 keV Ar+, 200 keV Xe+, and 200 keV Hg+ were implanted into Si3N4 films under angles of 0°, 45°, 60°, and 75°. Both normal and oblique incidence Rutherford backscattering of 2.1 MeV He ions have been used to study tilted angle implantation, i.e., the lateral spread of Ar, Xe, and Hg ions in the Si3N4 films. The results extracted are compared with the simulation of transport of ions in matter (TRIM'89 code). The experimental lateral spread seems to be in good agreement with the TRIM'89 prediction.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.352252
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    Artikel (Nationallizenzen)
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