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Wyświetlanie 1-10 z 33
Tytuł:
Area-Storage Capacity Curve of Historic Artificial Water Reservoir Ottergrund, Slovakia – Assessment of the Historical Data With the use of GIS Tools
Autorzy:
Fuska, J.
Kubinský, D.
Weis, K.
Lackóová, L.
Pokrývková, J.
Leitmanová, M.
Panagopoulos, T.
Tematy:
area-storage capacity curve
historic map
TIN model
water reservoir
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Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:
https://bibliotekanauki.pl/articles/952370.pdf  Link otwiera się w nowym oknie
Opis:
The main goal of this work was to verify the historic data of historic artificial water reservoir Ottergrund, Banská Štiavnica district, which is inscribed in the UNESCO world heritage list. Main focus was set to area-storage capacity curve. There is historic map with the display of reservoir bottom contours and area-storage capacity curve in a paper format. These data were analysed and compared with the results of the calculation of area-storage capacity curve that was performed with the use of a new tool with named “ASC_Curve”, which is based on Python script. This tool utilizes ArcPy site package and it works with the TIN model of water reservoir bottom. In case of water reservoir Ottergrund we created the TIN model of the historic bottom; input data for the TIN model creation was the historic contour plan. The results of the analysis have shown that the storage capacity calculated with the use of the developed ASC_Curve tool is 97% of the volume mentioned in the historic map. Analysis has also show the minor mathematical errors in the calculations of the area-storage capacity data in historic contour plan. This tool can also be used also for the analysis of the current storage capacity conditions of the water reservoirs, if the surveying with echosounding equipment is performed to obtain the data to produce the TIN model of the water reservoir bottom.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Defect Analysis of Pentacene Diode
Autorzy:
Stuchlíková, L.
Weis, M.
Juhász, P.
Kósa, A.
Harmatha, L.
Jakabovic, J.
Tematy:
72.80.Le
73.50.Gr
71.55.-i
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Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:
https://bibliotekanauki.pl/articles/1364022.pdf  Link otwiera się w nowym oknie
Opis:
This paper demonstrates the analysis of defect states in pentacene film sandwiched between Au and Al electrodes by the deep-level transient spectroscopy method. Three hole-like deep energy levels were observed. The effective mass obtained from the simulation is applied and defect parameters, namely the capture cross-sections and the activation energy 3.7 × $10^{-18} cm^2$ at 0.34 eV, 3.1 × $10^{-17} cm^2$ at 0.41 eV, and 2.9 × $10^{-15} cm^2$ at 0.63 eV is determined from the Arrhenius plot. Reliability of obtained defect parameters is confirmed by simulation of deep level transient spectra and comparison with experiment.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
He⁺ Ion Bombardment Induced Effects on Magnetic Properties of Ni-Fe/Au/Co/Au Films
Autorzy:
Kuświk, P.
Szymański, B.
Urbaniak, M.
Dubowik, J.
Stobiecki, F.
Kisielewski, J.
Tekielak, M.
Maziewski, A.
Weis, T.
Ehresmann, A.
Tematy:
75.70.-i
75.30.Gw
75.50.Sc
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Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:
https://bibliotekanauki.pl/articles/1813489.pdf  Link otwiera się w nowym oknie
Opis:
The influence of He⁺ (10 keV) ion bombardment on magnetic properties of sputter deposited $Ni_{80}Fe_{20}$/Au/Co/Au layered films was studied. The variable parameters were the thickness of the Co layer or Au spacer and the ion dose. The magnetooptical Kerr measurements were performed on samples with wedge shaped Co or Au layers. With increasing dose of helium ions the following changes in magnetic properties were observed: (i) a decrease in the Co thickness range corresponding to the perpendicular anisotropy, (ii) a decrease in the coercive field $(H_C)$, (iii) an increase in the ferromagnetic coupling between ferromagnetic layers.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Domains Stimulated Magnetostatic Coupling in NiFe/Au/Co/Au Multilayers Investigated by Complementary Methods
Autorzy:
Stobiecki, F.
Urbaniak, M.
Szymański, B.
Kuświk, P.
Schmidt, M.
Aleksiejew, J.
Weis, T.
Engel, D.
Lengemann, D.
Ehresmann, A.
Kopcewicz, M.
Tematy:
75.70.-i
75.30.Gw
75.60.-d
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:
https://bibliotekanauki.pl/articles/1810577.pdf  Link otwiera się w nowym oknie
Opis:
The magnetic structure of $Ni_{80}Fe_{20}$/Au/Co/Au multilayers characterized by easy-plane and easy-axis perpendicular to the sample plane anisotropies for NiFe and Co, respectively, is strongly modified by magnetostatic coupling resulting from stray fields of stripe domains in the Co layers. Using complementary methods it will be shown that the magnetostatic coupling increases with decreasing Au spacer thickness, with the weakening of the easy plane anisotropy of the NiFe layers and with increasing thickness of the Co layers.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of the global network of optical magnetometers to search for exotic physics (GNOME)
Autorzy:
Palm, C. A.
Peng, X.
Grujić, Z. D.
Pustelny, Szymon
Nix, S.
Wickenbrock, A.
Stalnaker, J. E.
Smiga, J. A.
Wurm, D.
Budker, D.
Pankow, C.
Penaflor, A.
Padniuk, Mikhail
Masia-Roig, H.
DeCamp, G.
Guo, H.
Jackson Kimball, D. F.
Kornack, T. W.
Lebedev, V.
Scholtes, T.
Dumont, V.
Afach, S.
Weis, A.
Li, W.
Opis:
The Global Network of Optical Magnetometers to search for Exotic physics (GNOME) is a network of geographically separated, time-synchronized, optically pumped atomic magnetometers that is being used to search for correlated transient signals heralding exotic physics. The GNOME is sensitive to nuclear- and electron-spin couplings to exotic fields from astrophysical sources such as compact dark-matter objects (for example, axion stars and domain walls). Properties of the GNOME sensors such as sensitivity, bandwidth, and noise characteristics are studied in the present work, and features of the network’s operation (e.g., data acquisition, format, storage, and diagnostics) are described. Characterization of the GNOME is a key prerequisite to searches for and identification of exotic physics signatures.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Wyświetlanie 1-10 z 33

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