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Wyszukujesz frazę "Schwartz, K." wg kryterium: Wszystkie pola


Wyświetlanie 1-3 z 3
Tytuł:
Induced Absorption in Gadolinium Gallium Garnet Irradiated by High Energy $\text{}^{235}U$ Ions
Autorzy:
Potera, P.
Ubizskii, S.
Sugak, D.
Schwartz, K.
Powiązania:
https://bibliotekanauki.pl/articles/1550538.pdf
Data publikacji:
2010-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.72.jn
81.40.Wx
61.80.Ba
61.80.Jh
61.72.J-
Opis:
The present work is devoted to investigation of optical absorption in pure $Gd_{3}Ga_{5}O_{12}$ (GGG) single crystals in the spectral range 0.2-1.1 μm induced under influence of the $\text{}^{235}U$ ions irradiation with energy 2640 MeV and a fluence $10^{9}-10^{11} cm^{-2}$. The induced absorption for $10^{9} cm^{-2}$ is caused by recharging of point defects, both growth ones and impurities. After irradiation by $\text{}^{235}U$ ions with fluences starting from $3 \times 10^{9} cm^{-2}$ the absorption rise is probably caused by contribution of the lattice destroying as a result of heavy ion bombardment as well as radiation displacement defects.
Źródło:
Acta Physica Polonica A; 2010, 117, 1; 181-183
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The concept for protection of flood plain forests in the Uroczysko Warta forest district
Autorzy:
Kaminski, B.
Miler, A.T.
Grajewski, S.
Okonski, B.
Schwartz, K.
Powiązania:
https://bibliotekanauki.pl/articles/59662.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
Uroczysko Warta forest district
flood plain forest
ground water level
small water retention
protection concept
forest ecosystem
river regulation
Jeziorsko reservoir
Warta River
hydrological condition
engineering infrastructure
Opis:
Flood plain forests are the richest and highly picturesque forest ecosystems. Unfortunately, river regulation and flood control contribute to their degradation. In Poland only 0.2% of total area is covered by flood plain forests. The Uroczysko Warta forest district constitutes one of the most important clusters of these sites. The construction of the Jeziorsko reservoir in the middle course of the Warta River has contributed to changes in the river regime (reduced flooding areas and decreased flooding frequency). It seems that the use of simple land improvement systems, i.e. gates, river bars and culverts with flap check valves, may result in the recreation of advantageous hydrological conditions. In such a case storage volume of oxbow lakes would be increased and ground water would be maintained at a higher level over longer periods of time. This study presents a concept for protection of the Uroczysko Warta, thanks to the construction of appropriate engineering infrastructure.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2010, 11
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Atomic Force Microscopy of Instabilities and Reorganization of Langmuir-Blodgett Films
Autorzy:
Takamoto, D. Y.
Ter-Ovanesyan, E.
Schwartz, D. K.
Viswanathan, R.
Chiruvolu, S.
Zasadzinski, J. A.
Powiązania:
https://bibliotekanauki.pl/articles/1968761.pdf
Data publikacji:
1998-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
82.65.Dp
Opis:
The atomic force microscope was used to show that Langmuir-Blodgett films are unstable to reorganization via a folding mechanism by which uniformly thick films spontaneously form holes and multilayer steps. These bilayer step defects originate at isolated sites and quickly spread to cover the entire film. The defects retain the sixfold symmetry of the underlying molecular lattice; after sufficient time, straight edges begin to form and the entire film is comprised of high islands with straight edges aligned with sixfold symmetry. The kinetics of the reorganization depend strongly on the chain length of the fatty acid used and the nature of the substrate. The results suggest that the reorganization is driven by an interconversion of strained, asymmetric monolayers to unstrained, centrosymmetric bilayers.
Źródło:
Acta Physica Polonica A; 1998, 93, 2; 373-382
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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