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Wyświetlanie 1-2 z 2
Tytuł:
Optical emission spectroscopy of plasma streams in PF-1000 experiments
Autorzy:
Jakubowska, K.
Kubkowska, M.
Skladnik-Sadowska, E.
Malinowski, K.
Marchenko, A. K.
Paduch, M.
Sadowski, M. J.
Scholz, M.
Powiązania:
https://bibliotekanauki.pl/articles/146628.pdf
Data publikacji:
2011
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
dense plasma focus (DPF)
optical emission spectroscopy
deuterium Balmer series
Ar II lines
electron density
Boltzmann plot
Opis:
The optical spectroscopy in the visible range was used to determine properties of the dense magnetized plasma generated in the PF-1000, a 1 MJ plasma focus device operating in the Institute of Plasma Physics and Laser Microfusion (IPPLM) in Warsaw, Poland. The experiments were performed in a vacuum chamber pumped out to the basic pressure of 2 x 10.5 hPa. The initial pressure of the pure deuterium filling was 2.9 hPa, while that of the deuterium--argon mixture was 1.07 hPa of D2 and 0.13 hPa of Ar. The deuterium-plasma emission contained the Balmer series (Dalfa, Dbeta and Dgamma) and a few distinct copper (Cu I) lines originating from the inner electrode material. The emission of the deuterium-argon plasma was rich in Ar II lines. The electron density (ne), averaged over line of sight, of order of 1016 cm.3 was calculated on the basis of the Dalfa and Dbeta emission only, because the D�ż line was strongly self-absorbed. A group of the Ar II spectral lines was used to estimate the excitation temperature (Texc = 3 eV) by means of a Boltzmann plot. Additionally, the temporal evolution of the electron density was determined on basis of the Stark broadening of the Dalfa and Dgamma lines.
Źródło:
Nukleonika; 2011, 56, 2; 125-129
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
What the Russian war in Ukraine means for the Middle East?
Autorzy:
Zdanowski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/20434583.pdf
Data publikacji:
2023
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
Russian-Ukrainian war
Middle East countries
policy
plot lines
driving forces
Opis:
This article refers to the impact the war in Ukraine had on the policy of the Middle East countries in the international and domestic aspects and what development of events can be expected in this connection. The Middle East countries reacted quickly to the war in Ukraine; most condemned Russia’s aggression. However, none sided with Ukraine, and Iran firmly sided with Russia. How to explain it? Also, Arab public opinion did not accept the Western narrative about the causes of the war in Ukraine. Was it the result of Russian propaganda, or were there more profound reasons? Washington strongly pressured its Middle Eastern allies to move away from their policy of neutrality. Still, a year after the aggression, the Middle East not only continued to maintain relations with Russia but also expanded its scope. Was it the result of the rejection of American paternalism or the greater autonomy of the region’s countries in the conditions of multipolarity in international relations? The article tries to explain these questions within the methodology and terminology of constructing scenarios of future trends in international relations.
Źródło:
Krakowskie Studia Międzynarodowe; 2023, XX, 1; 13-42
1733-2680
2451-0610
Pojawia się w:
Krakowskie Studia Międzynarodowe
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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