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Wyświetlanie 1-5 z 5
Tytuł:
Late Tortonian bryozoans from Mut Basin, Central Anatolian Plateau, southern Turkey
Autorzy:
Zagorsek, K.
Gordon, D.P.
Powiązania:
https://bibliotekanauki.pl/articles/21300.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Late Tortonian
Tortonian
bryozoan
Mut Basin
Central Anatolian Plateau
Turkey [geogr.]
Bryozoa
Cheilostomata
Basyaylella
Ostrovskia
Eocene
Miocene
Opis:
Sixteen bryozoan species have been identified in the Başyayla section, Mut Basin, southern Turkey. Five of these species are described here, including two new to science representing new genera: Basyaylella elsae gen. et sp. nov. and Ostrovskia triforamina gen. et sp. nov. The other three described species (Exidmonea sp., Biflustra savartii, and Margaretta sp.) show unusual features that have not been reported previously. Based on bryozoan data, the Başyayla sequence represents a tropical to subtropical, normal marine environment, with seafloor composed of fine sedimentary particles in a low−energy setting.
Źródło:
Acta Palaeontologica Polonica; 2013, 58, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bivalve Characterization Using Synchrotron Micro X-Ray Fluorescence
Autorzy:
Jones, K.
Bronson, S.
Brink, P.
Gordon, C.
Mosher-Smith, K.
Brown, M.
Chaudhry, S.
Rizzo, A.
Sigismondi, R.
Whitehurst, M.
Lukaszewski, A.
Kranz, D.
Bland, K.
Gordan, D.
Lobel, J.
Sullivan, J.
Metzger, M.
O'Shea, C.
Harris, C.
Arezzo, R.
Kambhampati, M.
Powiązania:
https://bibliotekanauki.pl/articles/1808352.pdf
Data publikacji:
2009-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
01.40.-d
07.85.Qe
82.80.Ej
87.59.-e
Opis:
Bivalves, oysters, mussels, and clams are important constituents of riverine and estuarine ecosystems. Their shells and soft tissues provide information on the environments in which they live. Since they are filter feeders, they also are factors in improving water quality through removal of particulate matter from the water column. Finally, they are a valuable food source that has substantial economic value. Hence, characterization of shells and soft tissues is useful for improved understanding of these factors. Here, we used X-ray microprobes and computed microtomography facilities at the Brookhaven National Synchrotron Light Source to investigate elemental distributions in bivalves taken from locations around New York, Washington, DC, and New Orleans, LA. The results form the initial basis for compilation of a database of relevant parameters that can serve for tracking environmental changes and for assessing toxicity of particular metals. The work was enabled by active collaboration with students from the several regions, community groups, and research scientists. The collaboration was facilitated through use of web conferencing between Brookhaven National Laboratory and the varied locations.
Źródło:
Acta Physica Polonica A; 2009, 115, 2; 477-481
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Internal wave diffraction by a strip of an elastic plate on the surface of a stratified fluid
Autorzy:
Dolai, P.
Dolai, D. P.
Powiązania:
https://bibliotekanauki.pl/articles/265771.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
równanie Kleina-Gordona
płyn warstwowy
metoda Wienera-Hopfa
stratified fluid
Klein-Gordon equation
Wiener-Hopf technique
steepest descent method
Opis:
The problem of internal wave diffraction by a strip of an elastic plate of finite width present on the surface of an exponentially stratified liquid is investigated in this paper. Assuming linear theory, the problem is formulated in terms of a function related to the stream function describing the motion in the liquid. The related boundary value problem involves a hyperbolic type partial differential equation (PDE), known as the Klein Gordon equation. The method of Wiener-Hopf is utilized in the mathematical analysis to a slightly generalized boundary value problem (BVP) by introducing a small parameter, and the problem is solved approximately for large width of the plate. In the final results, this small parameter is made to tend to zero. The diffracted field is obtained in terms of integrals, which are then evaluated asymptotically in different regions for a large distance from the edges of the plate and the results are interpreted physically.
Źródło:
International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 5-26
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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