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  • 2020-2022  (1,241,815)
  • 1995-1999  (1,634,657)
  • 1990-1994  (1,575,054)
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  • 1
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    The law of the wall in turbulent flow (1995)
    Royal Society of London
    Details
    Publication Date: 2024-06-06
    Description: The ‘law of the wall’ for the inner part of a turbulent shear flow over a solid surface is one of the cornerstones of fluid dynamics, and one of the very few pieces of turbulence theory whose results include a simple analytic function for the mean velocity distribution, the logarithmic law. Various aspects of the law have recently been questioned, and this paper is a summary of the present position. Although the law of the wall for velocity has apparently been confirmed by experiment well outside its original range, the law of the wall for temperature seems to apply only to very simple flows. Since the two laws are derived by closely analogous arguments this throws suspicion on the law of the wall for velocity. Analysis of simulation data, for all the Reynolds stresses including the shear stress, shows that law-of-the-wall scaling fails spectacularly in the viscous wall region, even when the logarithmic law is relatively well behaved. Virtually all turbulence models are calibrated to reproduce the law of the wall in simple flows, and we discuss whether, in practice or in principle, their range of validity is larger than that of the law of the wall itself: the present answer is that it is not; so that when the law of the wall (or the mixing-length formula) fails, current Reynolds-averaged turbulence models are likely to fail too.
    Type: Article , PeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 2
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    RV POSEIDON Cruise Report POS221 (1996)
    Geologisch-Paläontologisches Institut
    Details
    Publication Date: 2024-06-06
    Description: Dates of Cruise: 18.7.96 - 4.8.96. General Subject of Research: Sampling of active volcanism on the middle Kolbeinsey Ridge and the Eggvin Bank. Port Calls: Kiel, Reykjavik.
    Type: Report , NonPeerReviewed
    Format: text
    Format: other
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    PAPER (OCEANREP)
  • 3
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    (Table A7) Cd/Ca and stable carbon isotopic ratios of benthic foraminifera from North Atlantic surface sediments (1999)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Keywords: BCR; Box corer (Reineck); Cadmium/Calcium ratio; Cibicides lobatulus, δ13C; Cibicidoides pseudoungerianus, δ13C; DEPTH, sediment/rock; Elevation of event; Event label; GEOMAR; Giant box corer; GKG; Helmholtz Centre for Ocean Research Kiel; Latitude of event; Longitude of event; MARFLUX; North Atlantic; off Portugal; POS200/10; POS200/10_1-1; POS200/10_3-1; POS200/10_6-1; Poseidon; SO10GK; SO75/3; SO75/3_13KG; SO75/3_25KG; SO75/3_30KG; SO7GK; SO83; SO83_10GK; SO83_1GK; SO83_4GK; SO83_7GK; Sonne; Uvigerina bifurcata, δ13C; Uvigerina mediterranea, δ13C; Uvigerina peregrina, δ13C
    Type: Dataset
    Format: text/tab-separated-values, 37 data points
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    DATA PANGAEA
  • 4
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    (Table 3-5) Stable carbon isotopes, Cd/Ca ratios and P reconstruction for surface sediments (1999)
    PANGAEA
    Details
    Publication Date: 2024-06-06
    Keywords: Atlantic Ocean; BCR; BOFS11896#1; BOFS11905#1; BOFS14K; BOFS17K; Box corer (Reineck); Cadmium/Calcium ratio; Calculated; CALYPSO; Calypso Corer; Cibicidoides spp., δ13C; Cibicidoides wuellerstorfi, δ13C; D184; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Difference; Discovery (1962); Distribution coefficient; Elevation of event; Event label; GEOMAR; Giant box corer; GIK16004-1; GIK23414-9; GKG; Helmholtz Centre for Ocean Research Kiel; IMAGES I; KAL; Kasten corer; KL; KOL; Latitude of event; Longitude of event; M17/2; M23414; M60; MARFLUX; Marion Dufresne (1995); MD101; MD952039; MD95-2039; Meteor (1964); Meteor (1986); North Atlantic; Northeast Atlantic; off Portugal; Phosphorus; Piston corer (BGR type); Piston corer (Kiel type); Porto Seamount; POS200/10; POS200/10_1-1; POS200/10_3-1; POS200/10_6-1; Poseidon; SO10GK; SO75/3; SO75/3_13KG; SO75/3_25KG; SO75/3_26KL; SO75/3_30KG; SO7GK; SO83; SO83_10GK; SO83_1GK; SO83_4GK; SO83_7GK; Sonne; SUBTROPEX 82; Uvigerina spp., δ13C
    Type: Dataset
    Format: text/tab-separated-values, 144 data points
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    DATA PANGAEA
  • 5
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    Continuing the search for a law of mortality (1996)
    Population Council
    Details
    Publication Date: 2024-06-03
    Description: Scientists have long attempted to explain why closely similar age patterns of death are characteristic of highly diverse human and nonhuman populations. Historical efforts to identify a general "law of mortality" from these patterns that applied across species ended in 1935 when it was declared that such a law did not exist. These early efforts were conducted using mortality curves based on all causes of death. The authors predict that if comparisons of mortality are based instead on "intrinsic" causes of death (i.e., deaths that reflect the basic biology of the organism), then age patterns of mortality consistent with the historical concept of a law might be revealed. Using data on laboratory animals and humans, they demonstrate that age patterns of intrinsic mortality overlap when graphed on a biologically comparable time scale. These results are consistent with the existence of a law of mortality following sexual maturity, as originally asserted by Benjamin Gompertz and Raymond Pearl. The societal, medical, and research implications of such a law are discussed.
    Type: Article , PeerReviewed
    Format: text
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  • 6
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    Distribution of planktic foraminifers of sediment core GIK15612-2 (1998)
    PANGAEA
    Details
    Publication Date: 2024-06-03
    Keywords: AGE; Calculated; Candeina nitida; Counting 〉150 µm fraction; DEPTH, sediment/rock; Foraminifera, planktic; GIK/IfG; GIK15612-2; Globigerina bulloides; Globigerina calida; Globigerina digitata; Globigerina falconensis; Globigerina quinqueloba; Globigerina quinqueloba dextral; Globigerina quinqueloba sinistral; Globigerina rubescens; Globigerinella aequilateralis; Globigerinita glutinata; Globigerinita uvula; Globigerinoides conglobatus; Globigerinoides ruber pink; Globigerinoides ruber white; Globigerinoides tenellus; Globigerinoides trilobus sacculifer; Globigerinoides trilobus trilobus; Globorotalia cavernula; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia inflata; Globorotalia menardii; Globorotalia scitula; Globorotalia truncatulinoides; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Institute for Geosciences, Christian Albrechts University, Kiel; KOL; M57; Meteor (1964); Neogloboquadrina dutertrei; Neogloboquadrina pachyderma dextral; Neogloboquadrina pachyderma dextral and dutertrei integrade; Neogloboquadrina pachyderma sinistral; North Atlantic; Orbulina universa; Paleoproductivity as carbon; Piston corer (Kiel type); Pulleniatina obliquiloculata; Sea surface temperature, summer; Sea surface temperature, winter; Sphaeroidinella dehiscens; Turborotalita humilis
    Type: Dataset
    Format: text/tab-separated-values, 8188 data points
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    DATA PANGAEA
  • 7
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    (Table 3) Percentages of planktonic foraminiferal species and varieties from the sediment surface samples from the South China Sea (1999)
    PANGAEA
    Details
    Publication Date: 2024-06-03
    Keywords: Candeina nitida; Counting 〉150 µm fraction; CTD/Rosette; CTD-RO; DEPTH, sediment/rock; Elevation of event; Event label; Giant box corer; GIK/IfG; GIK17920-1; GIK17921-1; GIK17928-1; GIK17929-1; GIK17930-1; GIK17931-1; GIK17932-1; GIK17933-2; GIK17934-1; GIK17935-1; GIK17937-1; GIK17938-1; GIK17939-1; GIK17940-1; GIK17941-1; GIK17942-1; GIK17943-1; GIK17944-1; GIK17945-1; GIK17948-1; GIK17949-1; GIK17950-1; GIK17951-1; GIK17952-2; GIK17954-1; GIK17955-1; GIK17957-1; GIK17958-1; GIK17959-1; GIK17960-1; GIK17961-1; GIK17962-1; GIK17963-2; GIK17964-1; GIK17965-1; GKG; Globigerina bulloides; Globigerina calida; Globigerina digitata; Globigerina falconensis; Globigerina rubescens; Globigerinella aequilateralis; Globigerinita glutinata; Globigerinoides conglobatus; Globigerinoides ruber; Globigerinoides ruber highspired; Globigerinoides tenellus; Globigerinoides trilobus sacculifer; Globigerinoides trilobus trilobus; Globorotalia cavernula; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia inflata; Globorotalia menardii; Globorotalia scitula; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Globorotaloides hexagonus; Hastigerina pelagica; Institute for Geosciences, Christian Albrechts University, Kiel; Latitude of event; Longitude of event; MONITOR MONSUN; Neogloboquadrina dutertrei; Neogloboquadrina pachyderma dextral; Neogloboquadrina pachyderma dextral and dutertrei integrade; Neogloboquadrina pachyderma sinistral; Orbulina universa; Pulleniatina obliquiloculata; SO95; Sonne; South China Sea; Sphaeroidinella dehiscens
    Type: Dataset
    Format: text/tab-separated-values, 1120 data points
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    DATA PANGAEA
  • 8
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    Phytoplankton abundance and biomass measured on water bottle samples during POLARSTERN cruise ANT-X/6 (1997)
    PANGAEA
    Details
    Publication Date: 2024-05-31
    Keywords: ANT-X/6; Bottle number; Chaetoceros bulbosum; Coccolithophoridae; Corethron criophilum; Corethron criophilum forma inerme; CTD/Rosette; CTD-RO; Cyanobacteria; Date/Time of event; DEPTH, water; Diatoms; Diatoms, biomass as carbon; Diatoms, pelagic, biomass as carbon; Diatoms, sea ice, biomass as carbon; Elevation of event; Event label; Flagellates, biomass as carbon; Fragilariopsis kerguelensis; JGOFS; JGOFS AWI methods; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; Nanoflagellates; Nitzschia closterium; Nitzschia prolongatoides; Phytoplankton, biomass as carbon; Polarstern; PS22; PS22/930C1; PS22/931C1; PS22/932C1; PS22/933C1; PS22/934C1; PS22/939C1; PS22/940C1; PS22/941C1; PS22/943C1; PS22/945C1; PS22/947C1; PS22/949C2; PS22/950C1; PS22/953C1; PS22/954C1; PS22/956C1; PS22/958C1; PS22/960C1; PS22/962C1; PS22/964C1; PS22/966C1; PS22/969C1; Sample ID; South Atlantic Ocean; Thalassionema nitzschioides
    Type: Dataset
    Format: text/tab-separated-values, 1983 data points
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  • 9
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    Lithologische Beschreibung einer Forschungsbohrung im Zentrum des oberoligozänen, vulkano-lakustrinen Beckens von Enspel/Westerwald (Rheinland-Pfalz; Bundesrepublik Deutschland) (1998)
    Details
    Publication Date: 2024-05-28
    Description: Im Spätsommer 1996 wurde in der oberoligozänen Fossillagerstätte Enspel im nordwestlichen Westerwald vom Geologischen Landesamt Rheinland-Pfalz, gemeinsam mit dem Landesamt für Denkmalpflege Rheinland-Pfalz, eine Forschungsbohrung niedergebracht. Die Bohrung erreichte eine Teufe von 256,3 m. Es wurden 2,6 m Basalt, etwa 137 m lakustrine Sedimente und 90 m Vulkaniklastika erbohrt. An deren Basis folgen fragmentierte devonische Sedimentgesteine, die bis zu einer Mächtigkeit von 24,3 m erbohrt wurden. Die Abfolge repräsentiert die Füllung eines komplexen, maarähnlichen Beckens. Der Bohrkern wird in einem interdisziplinären Projekt von verschiedenen Arbeitsgruppen untersucht, um Bau und Genese des ehemaligen Enspelsees zu erforschen.
    Description: Abstract: In late summer 1996 the Geological Survey of Rheinland-Pfalz and the Landesamt für Denkmalpflege Rheinland-Pfalz sank a research core, in the Upper Oligocene Fossillagerstätte Enspel, Northwest-Westerwald-area. The drilling reached a depth of 256.3 m. 2.6 m of basalt, 137 m of lakustrine sediments, 90 m of pyroclastic rocks and 24.3 m of fragmented Devonian sediments were found. This section documents the filling of a complex maarlike basin. The cores are examined in an interdisciplinary research project concerning the genesis and structure of the Enspel lake system.
    Description: research
    Keywords: ddc:554.3 ; Westerwald ; TK 5313 ; Oligozän ; Bohrung
    Language: German
    Type: doc-type:article , publishedVersion
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    CITATION GEO-LEO
  • 10
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    Protokoll über das 14. Kolloquium "Elektromagnetische Tiefenforschung" Borkheide vom 25.5-29.5.1992 (1992)
    Deutsche Geophysikalische Gesellschaft
    Details
    Publication Date: 2024-05-22
    Language: German , English
    Type: info:eu-repo/semantics/conferenceObject
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    PAPER (OA)
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