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Wyszukujesz frazę "Kłusek, M." wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Miocene coniferous woods of the Polish Carpathian Foredeep
Autorzy:
Klusek, M.
Powiązania:
https://bibliotekanauki.pl/articles/945876.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleoecology
fossil
wood
wood anatomy
Coniferophyta
Miocene
coniferous wood
Polska
Carpathian Foredeep
Opis:
This paper presents the results of analysis of the Miocene woods collected from three sampling sites in the Polish part of the Carpathian Foredeep. The location in the stratigraphic profile and the state of fossil preservation indicate that the woods were transported by waters flowing from highland or from mountainous regions and then deposited and fossilised in delta areas. Fragments of 16 lignified or silicified woods were collected for anatomical research. The fossil woods were classified as Piceoxylon piceae, Juniperoxylon pachyderma, Cupressinoxylon canadense and Cupressinoxylon polonicum. Disturbance zones observed in Cupressinoxylon polonicum are interpreted as frost rings. Frost rings suggest that despite the documented existence of warm and humid climatic conditions during the Miocene period, the temperatures in mountainous areas could temporarily drop below freezing point.
Źródło:
Acta Palaeontologica Polonica; 2014, 59, 3; 697-708
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fossil wood from the Roztocze region (Miocene, SE Poland) : a tool for palaeoenvironmental reconstruction
Autorzy:
Kłusek, M.
Powiązania:
https://bibliotekanauki.pl/articles/2059126.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Roztocze
fossil wood
wood anatomy
growth rings
Opis:
This article presents the results of anatomical and growth ring analyses of Badenian fossil wood from the Roztocze region. All the wood specimens examined are classified as Taxodioxylon taxodii Goth. The growth rings of these woods are very narrow, and they vary considerably in width. Tracheids have large diameters and thin cell walls.The latewood zone is wide; the transition between early and latewood is gradual. Both false and wedge rings and also reaction wood zones are often found. These characteristics of the fossil wood make it a suitable aid to reconstructing the environmental conditions prevailing while the trees were alive. The environmental requirements of these ancient Roztocze trees are interpreted by comparison with those of their nearest living relatives, with the conclusion that they lived in waterlogged or temporarily flooded stands under seasonally changing environmental conditions and with a long growing season. The climate was warm and humid and characterized by significant variability, mainly as regards the amount of precipitation.
Źródło:
Geological Quarterly; 2006, 50, 4; 465-474
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oxidation Studies of the Graphite Surface by Scanning Tunneling Microscopy and Photoelectron Spectroscopy
Autorzy:
Klusek, Z.
Phaner, M.
Krapf, P.
Porte, L.
Powiązania:
https://bibliotekanauki.pl/articles/1931811.pdf
Data publikacji:
1994-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.16.Ch
33.60.Fy
Opis:
Scanning tunneling microscopy and spectroscopy and X-ray photoelectron spectroscopy were used to study oxidation effects of nitric acid on highly oriented pyrolytic graphite surface. This treatment was performed at different temperatures and etching times with the aim of realizing local binding sites on the surface without creating deep defects. Then these three technics were found in good agreement to characterize the weakly oxidized surface. A wavy structure different from pure graphite at atomic scale was imaged by scanning tunneling microscopy. This modification was correlated to the presence of carboxylic groups on the surface revealed by X-ray photoelectron spectroscopy. Both spectroscopies of scanning tunneling and X-ray photoelectron demonstrated the vanishing of π bands characteristic from sp$\text{}^{2}$ graphitic hybridization. This was attributed to dehybridization corresponding to new bondings of the graphite carbons in the carboxylic groups.
Źródło:
Acta Physica Polonica A; 1994, 86, 6; 947-954
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scanning Tunneling Microscopy/Spectroscopy Investigations of the Interference Effects Caused by the Circular Pits on the Thermally Oxidized graphite Surface
Autorzy:
Klusek, Z.
Kalinowski, M. W.
Olejniczak, W.
Kobierski, P.
Powiązania:
https://bibliotekanauki.pl/articles/1968772.pdf
Data publikacji:
1998-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.60.Fy
61.16.Ch
71.20.-b
Opis:
The thermal oxidation of the graphite leads to the removal of monoatomic carbon layers from the surface and formation of circular pits on the exposed plane. Near the pit edges the scanning tunneling spectroscopy measurements show a series of very narrow flat regions on the I/V characteristics. The observed I/V flat regions appear only when the characteristic is recorded very close to the pit edges. The appearance of tunneling current steps can be explained by the oscillating character of the local density of states near the pit edges. A simple quantum mechanical model in 2D based on boundary condition for an electron wave function is proposed.
Źródło:
Acta Physica Polonica A; 1998, 93, 2; 415-420
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Fully Computerized Scanning Tunnelling Microscope
Autorzy:
Chwiałkowski, M.
Klusek, Z.
Kobierski, P.
Olejniczak, W.
Sławski, M.
Witek, A.
Powiązania:
https://bibliotekanauki.pl/articles/1929317.pdf
Data publikacji:
1993-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.80.+x
Opis:
A new, fully computerized and inexpensive, scanning tunnelling microscope was designed and built. Its key design feature is the application of the high sensitivity bimorph, for the coarse positioning of the bimorph is > 0.03 mm and can be divided up to the 12 bit number of steps. The bimorph positioning implies that this microscope is fully computer controlled, and using of bimorph instead of inch-worm implies low cost of the unit. The microscope can create images of the surface in the constant current mode and in the imaging current mode. The presented microscope works with the z-axis analog or digital feedback loop optionally. All parameters of the analog and digital feedback loop are computer controlled. Due to the digital z-axis feedback loop benefits, electron tunneling spectroscopy mode is naturally accessible. The performance of the microscope was tested in air by imaging of surface of HOPG (high oriented pyrolytic graphite).
Źródło:
Acta Physica Polonica A; 1993, 83, 5; 621-628
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dependence of acoustic noise emission on the dissipated energy of plunging waves
Autorzy:
Klusek, Z.
Paprota, M.
Sulisz, W.
Zdolska, A.
Sorek, S.
Powiązania:
https://bibliotekanauki.pl/articles/48920.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
noise emission
acoustic noise
wave breaking
wave energy
energy dissipation
physical model
Źródło:
Oceanologia; 2020, 62, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GaSb Dots Grown on GaAs Surface by Metalorganic Chemical Vapour Deposition
Autorzy:
Bożek, R.
Babiński, A.
Baranowski, J. M.
Stępniewski, R.
Klusek, Z.
Olejniczak, W.
Starowieyski, K.
Wróbel, J.
Powiązania:
https://bibliotekanauki.pl/articles/1934054.pdf
Data publikacji:
1995-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.Gh
68.55.-a
Opis:
We report metaloorganic chemical vapour deposition growth of an anisotropic GaSb islands on GaAs (001) surface with a typical dimensions around 200 nm. Results of investigations employing scanning electron microscope, scanning tunnelling microscope and ph9tocapacitance are presented.
Źródło:
Acta Physica Polonica A; 1995, 88, 5; 974-976
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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