Preferential perihelion and aphelion distances,and planetary formation     

Barricelli  Nils Aall 《Earth, Moon, and Planets》1986,34(1):1-33

An interpretation of a series of precise relationships (Barricelli, 1972a) between planetary perihelion and aphelion distances, leading to the definition of preferential perihelion and aphelion distances, designated as meeting distances is outlined. The interpretation is based on Alfvén's (1969) jet stream theory and the hypothesis of harmonic resonance between intersecting jet streams.  相似文献   

A comprehensive model of the quiet-time, near-Earth magnetic field: phase 3   总被引：8，自引：0，他引：8  

Terence J. Sabaka  Nils Olsen  Robert A. Langel 《Geophysical Journal International》2002,151(1):32-68

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Comparison of stomach contents of haddock (Melanogrammus aeglefinus) from the 1981 and 1991 North Sea International Stomach Sampling Projects     

Adlerstein  Sara A.; Temming  Axel; Mergardt  Nils 《ICES Journal of Marine Science》2002,59(3):497-515

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Home range and elevated egg densities within an inshore spawning ground of coastal cod     

Espeland  Sigurd Heiberg; Gundersen  Ailin Fernlof; Olsen  Esben Moland; Knutsen  Halvor; Gjosaeter  Jakob; Stenseth  Nils C. 《ICES Journal of Marine Science》2007,64(5):920-928

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Historical population assessment of Barents Sea harp seals (Pagophilus groenlandicus)     

Skaug  Hans J.; Frimannslund  Lennart; Oien  Nils I. 《ICES Journal of Marine Science》2007,64(7):1356-1365

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An experimental study of rip channel flow   总被引：2，自引：0，他引：2  

Nils Drnen  Harshinie Karunarathna  Jrgen Fredse  B. Mutlu Sumer  Rolf Deigaard 《Coastal Engineering》2002,45(3-4)

A laboratory study of the flow over a bar with a single rip channel has been performed. First, the well-known pattern of a bar circulation cell with a strong offshore-directed current out through the rip channel and a weaker onshore-directed return flow over the bar is documented. Then measurements of the three-dimensional structure of the flow in the area where the rip channel, the bar and the trough meet and well inside the rip channel are presented. These measurements reveal that 3D effects play an important role, and that a depth-integrated viewpoint may not always be sufficient for predicting the flow in the near bed region. Particle-tracking experiments illustrate the near bed flow pattern over the entire area. These demonstrate how the overall trajectory pattern changes as a function of the distance of wave breaking from the bar crest: For some conditions, the rip current is fed from the trough and for other conditions it is fed directly from the bar. Both the 3D measurements and the trajectory tests show the existence of a weaker onshore-directed near-bed drift in the area where the rip current ceases. Finally, in a series of sensitivity tests, measurements of the rip current intensity for different wave climate and water level conditions reveal a strong correlation between the rip current intensity and the wave height (both normalized).  相似文献   

Extending comprehensive models of the Earth's magnetic field with Ørsted and CHAMP data     

Terence J. Sabaka  Nils Olsen  Michael E. Purucker 《Geophysical Journal International》2004,159(2):521-547

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Adolph Metzger 1896–1965     

Nils Edelman 《International Journal of Earth Sciences》1967,56(1):362-363

Ohne Zusammenfassung  相似文献   

Eutrophication in a Small Stream in Central Sweden   总被引：1，自引：0，他引：1  

Dr Doc Nils Brink  Anders Widell 《Aquatic Sciences - Research Across Boundaries》1967,29(2):333-360

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The Eocambrian glaciation in Norway     

Prof. Dr. Nils Spjeldnaes 《International Journal of Earth Sciences》1964,54(1):24-45

Summary Traces of the Eocambrian glaciation are found in three district in Norwegian territory, 1) in the south-east, at and north of the lake MjØsa, 2) in north-east, in Finnmark, and 3) in Spitzbergen. The two first districts are connected by a number of localities in Sweden, along the margin of the Caledonian Mountain chain. The glacial beds form the base of the Eocambrian, which is taken as the lowest part of the Cambrian. They generally rests with a more or less pronounced disconformity on dolomitic rocks of the Esmarkian (the upper part of the Riphean system). In some cases they rest directly on the crystalline Precambrian basement. This is due either to Esmarkian tectonic movements, to deep glacial erosion or both. The glacial beds are varied lithologically, but the characteristic rock types are tillites, boulder-shales and varved mudtones. All tillites are not regarded as fossil moraines, formed by ice movement. Some of them are supposed to have been formed by dropping of material from floating ice, either glacier ice or sea ice in a marine or brackish environment. The wide and uniform distribution of the tillite seems to preclude an interpretation as mudflows. Comparison with the Quaternary glacial sediments have given interesting results, and add to the evidence for a glacial origin of the tillites. It is also indicated that the direction of transport will depend on whether the material was rafted with glacial ice, or with drifting sea ice. Much more work has to be done both on the sedimentology, stratigraphy and paleomagnetism of the Norwegian Eocambrian glacial deposits and comparable sediments in order to get a clear and coherent picture of the glaciation, but the present evidence seem to indicate that it was part of a world-wide glaciation of even greater extent than the Permo-Carboniferous and Quarternary ones.  相似文献