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Wyświetlanie 1-15 z 18
Tytuł:
Angular Differential Cross-Sections for Electron Transfer in Collisions between Proton and He$\text{}^{+}$(1s) Ions
Autorzy:
Bhattacharyya, S.
Pathak, K.
Becker, A.
Faisal, F. H. M.
Powiązania:
https://bibliotekanauki.pl/articles/1952747.pdf
Data publikacji:
1996-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
34.70.+e
34.40.+n
Opis:
Angular differential cross-sections for the formation of H, as a result of electron capture by proton from He$\text{}^{+}$(1s) at the centre-of-mass energies from 4 to 24 keV, are calculated using distorted wave Coulomb-Born approximation. The total interaction potentials in the prior-interaction channel and in the post-interaction channel are considered. Coulomb boundary conditions are taken care of with the proper choice of the perturbation potentials in both the prior and the post channels. A prior-post discrepancy is noted. Existing theoretical results are presented along with the present results.
Źródło:
Acta Physica Polonica A; 1996, 90, 6; 1143-1153
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Speed-Dependent Effects on the 748.8 nm Ne Self-Broadened Line
Autorzy:
Ciuryło, R.
Bielski, A.
Brym, S.
Domysławska, J.
Lisak, D.
Szudy, J.
Trawiński, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/2011059.pdf
Data publikacji:
1999-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
33.70.-w
34.20.-b
Opis:
Profiles of the self-broadened 748.8 nm Ne line emitted from a glow discharge in neon in the pressure range between 0.8 and 100 Tr were measured using an improved experimental setup with pressure-scanned Fabry-Perot interferometer. First, line profiles were analysed using an ordinary Voigt procedure which yielded the Doppler widths decreasing with the increase in neon pressure. Using a speed-dependent Voigt profile it was shown that for the 748.8 nm line the correlation between the Doppler and collisional broadening plays an important role. However, the values of the pressure broadening and shift coefficients determined by the speed-dependent Voigt analysis were found to be only slightly different from those obtained by the ordinary Voigt analysis. A systematic error in the determination of perturber concentration in our previous investigation was corrected.
Źródło:
Acta Physica Polonica A; 1999, 96, 3-4; 359-372
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Excitation Processes on the Shape of Argon and Neon Lines
Autorzy:
Bielski, A.
Ciuryło, R.
Lisak, D.
Trawiński, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/2012938.pdf
Data publikacji:
2000-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
33.70.-w
34.20.-b
Opis:
Shapes of self-broadened argon lines 687.1 nm (4d$\text{}_{5}$-2p$\text{}_{10}$), 703.0 nm (3s$\text{}_{5}$-2p$\text{}_{9}$), 750.3 nm (2p$\text{}_{1}$-1s$\text{}_{2}$) as well as the neon line 748.8 nm (3d$\text{}_{3}$-2p$\text{}_{10}$) emitted from glow discharges at low pressures were analysed using a Fabry Perot interferometer. We showed that the dissociative recombination of Ar$\text{}_{2}^{+}$ (or Ne$\text{}_{2}^{+}$) molecular ions which gives rise to the density of non-thermalized atoms, may be regarded as the main process responsible for the distortion of the profiles of the above lines. The distorted profiles were analysed as superposition of the Ballik profile for thermalized atoms and the modified Ballik profile for non-thermalized atoms. The Lorentzian and Gaussian widths as well as relative densities of non-thermalized and thermalized atoms were determined.
Źródło:
Acta Physica Polonica A; 2000, 97, 2; 275-284
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pressure Broadening and Shift of the 326.1 nm Cd Line Perturbed by H$\text{}_{2}$ and D$\text{}_{2}$
Autorzy:
Bielski, A.
Ciuryło, R.
Domysławska, J.
Lisak, D.
Trawiński, R. S.
Wolnikowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2014011.pdf
Data publikacji:
2000-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
33.70.-w
34.20.-b
Opis:
The experimental values of pressure broadening and shift coefficients of the $\text{}^{114}$Cd 326.1 nm line perturbed by H$\text{}_{2}$ and D$\text{}_{2}$ are determined using a LIF technique and compared with theoretical values calculated from the impact theory.
Źródło:
Acta Physica Polonica A; 2000, 97, 6; 1003-1010
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Collision-Time Asymmetry and Speed-Dependent Effects on the $\text{}^{114}$Cd 326.1 nm Line Perturbed by Kr
Autorzy:
Trawiński, R. S.
Bielski, A.
Lisak, D.
Powiązania:
https://bibliotekanauki.pl/articles/2024018.pdf
Data publikacji:
2001-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
33.70.-w
34.20.-b
Opis:
Using a laser-induced fluorescence method, detailed analysis of profiles of the $\text{}^{114}$Cd 326.1 nm line perturbed by krypton was performed which revealed departures from the ordinary Voigt profile. These departures are shown to be consistent with fits of experimental profiles to a speed-dependent asymmetric Voigt profile. Coefficients of the pressure broadening, shift, and collision-time asymmetry are determined and compared with those calculated in the adiabatic approximation for the van der Waals, Czuchaj-Stoll, and Morse potentials.
Źródło:
Acta Physica Polonica A; 2001, 99, 2; 243-256
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long-range Interactions for the A$\text{}^{3}$1$\text{}_{u}$ and B$\text{}^{3}$0$\text{}_{u}^{+}$ States of Cd$\text{}_{2}$ from Line Shape Measurements
Autorzy:
Grycuk, T.
Michalicka, M.
Rogaczewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2030719.pdf
Data publikacji:
2002-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.70.-w
34.20.-b
32.70.-n
Opis:
We report on very precise measurements of the absorption profile of the 326.1 nm resonance line of cadmium broadened by interactions with the ground state Cd atoms under thermal equilibrium. The experimental red wing profiles, corrected for the Boltzmann factor at different temperatures, are analysed in terms of the long-range potential parameters including dispersion and resonant interactions. The resonant interaction energy constant C$\text{}_{3}$ is calculated to be 2.31×10$\text{}^{-2}$ eV Å$\text{}^{3}$ and the van der Waals constant C$\text{}_{6}$ for difference potentials between the ground state X$\text{}^{1}$0$\text{}_{ }^{+}$g and the excited states B$\text{}^{3}$0$\text{}_{u}^{+}$ and A$\text{}^{3}$1$\text{}_{u}$ of Cd$\text{}_{2}$ derived experimentally are found to be (182.6± 8) eV Å$\text{}^{6}$ and (289±4) eV Å$\text{}^{6}$, respectively. The former is determined for the first time and the latter is considerably corrected in comparison to earlier determination. The van der Waals constant C$\text{}_{6}$ for the ground state of Cd$\text{}_{2}$ is discussed and estimated to be C$\text{}_{6}^{g}$=(247± 40) eV Å$\text{}^{6}$.
Źródło:
Acta Physica Polonica A; 2002, 101, 6; 825-836
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of Low-Polarizability Perturbers on the Cadmium Intercombination Line
Autorzy:
Bielski, A.
Lisak, D.
Trawiński, R. S.
Szudy, J.
Powiązania:
https://bibliotekanauki.pl/articles/2035653.pdf
Data publikacji:
2003-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
33.70.-w
34.20.-b
Opis:
Using a laser-induced fluorescence method a detailed analysis of profiles of the $\text{}^{114}$Cd 326.1 nm line perturbed by neon and helium was performed which revealed deviations from the ordinary Voigt profile. These deviations are shown to be consistent with fits of experimental profiles to an asymmetric Voigt profile. Coefficients of the pressure broadening, shift and collision-time asymmetry are determined and compared with those calculated in the adiabatic approximation for different interaction potentials.
Źródło:
Acta Physica Polonica A; 2003, 103, 1; 23-40
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long-Range Interactions and the Oscillator Strength for the $\text{}^{1}1_{u}, \text{}^{1}0_{u}^{+}$ ← X $\text{}^{1}0_{g}^{+}$ Transitions in Zn$\text{}_{2}$
Autorzy:
Kubkowska, M. K.
Szczęśniak, T. M.
Grycuk, T.
Powiązania:
https://bibliotekanauki.pl/articles/2037211.pdf
Data publikacji:
2004-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
32.70.Cs
32.70.Jz
33.70.-w
34.20.-b
Opis:
The interaction potentials for Zn$\text{}_{2}$ electronic states $\text{}^{1}1\text{}_{u}$ and $\text{}^{1}0_{u}^{+}$ correlated with (4 $\text{}^{1}P_{1}$+4 $\text{}^{1}S_{0}$) asymptote in the long-range region (10-25) Å and the oscillator strength f for the absorption transition to these states are derived experimentally from a careful analysis of the self-broadened resonance 213.8 nm line of Zn. It is found that although the interatomic interactions at so long distances are dominated by resonance potential of the form C$\text{}_{3}$/R$\text{}^{3}$ resulting in the Lorentzian line shape, the parameter C$\text{}_{3}$ and thus f value significantly decrease with R decreasing. This effect proved to be a linear function of R$\text{}^{-1}$ yielding the oscillator strength for the considered line f$\text{}_{0}$=1.456 $\pm$ 0.010 from $R \rightarrow \infty$ extrapolation. This value seems to be the most accurate experimental result as yet and shows that the best theoretical values for this quantity are overestimated. It is suggested that the long-range behaviour of the potential energy curves observed here for the first time represents the effective potentials including dominating resonance interactions and a possible slight contribution of the dispersion interactions as well as the R-dependent spin-orbit interaction.
Źródło:
Acta Physica Polonica A; 2004, 105, 4; 317-328
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non-Adiabatic Semiclassical Calculations of the Collision-Time Asymmetry of the $\text{}^{114}$Cd 326.1 nm Line Perturbed by Noble Gases
Autorzy:
Bielski, A.
Ciuryło, R.
Lisak, D.
Trawiński, R. S.
Orlikowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/2037132.pdf
Data publikacji:
2004-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
33.70.-w
34.20.-b
Opis:
The collision-time asymmetry coefficients as well as the pressure broadening and shifting rates of the $\text{}^{114}$Cd 326.1 nm line perturbed by noble gases are calculated in the framework of the non-adiabatic semi-classical method using the Czuchaj et al. potentials. The theoretical values are compared with experimental results determined recently by means of laser-induced fluorescence technique.
Źródło:
Acta Physica Polonica A; 2004, 105, 3; 217-232
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Observation of the Line-Mixing and Collision-Time Asymmetry of the 5$\text{}^{1}$S$\text{}_{0}$-5$\text{}^{3}$P$\text{}_{1}$ Line of the Even-Odd $\text{}^{113}$Cd Isotope
Autorzy:
Bielski, A.
Ciuryło, R.
Domysławska, J.
Lisak, D.
Masłowski, P.
Szudy, J.
Trawiński, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/2037251.pdf
Data publikacji:
2004-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
33.70.-w
34.20.-b
Opis:
The profiles of argon perturbed components of the 5$\text{}^{1}$S$\text{}_{0}$-5$\text{}^{3}$P$\text{}_{1}$ line of the even-odd $\text{}^{113}$Cd isotope were measured using a laser-induced fluorescence method. It was shown that the asymmetries of the profiles are due to both the collision-duration and line-mixing effects.
Źródło:
Acta Physica Polonica A; 2004, 105, 4; 329-338
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On Argon-Induced Pressure Shifts of $\text{}^{198}$Hg Spectral Lines Associated with Quasi-Rydberg Transitions
Autorzy:
Trawiński, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/2046883.pdf
Data publikacji:
2006-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
32.80.Rm
34.20.-b
Opis:
The extended Omont-Kaulakys-Ueda treatment of collisional effects on quasi-Rydberg states, in which the perturbation of the lower state is taken into account, is applied to mercury-argon system. The pressure shift coefficients of 6p-ns and 6p-nd spectral lines are calculated and compared with available experimental data.
Źródło:
Acta Physica Polonica A; 2006, 110, 1; 51-56
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Funkcjonowanie samorządów pracowniczych w wybranych krajach realnego socjalizmu
Workers’ Self-Management in the Selected Countries of the Real Socialism Socio-Economic System
Autorzy:
Wdzięczak, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/965212.pdf
Data publikacji:
2016-05
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
self-management
employee participation
socialist economies
J51
N34
P31
Opis:
The aim of the article is to present the attempts of establishing institutions of a system of worker’s self-management in the selected countries of the so-called real socialism system in Eastern Europe. The analysis considers three of those countries, namely Yugoslavia, Poland and Hungary, whose experiences in participation of the employees’ implementation were the most significant. Particular attention was paid to the evolution of socialist regimes approach to workers’ self-management. The paper tries to answer the question whether workers’ self-management posed a threat to the socialist regimes persistence. The research method used in the study is an indepth survey and analysis of literature and legal acts.
Źródło:
Annales. Etyka w Życiu Gospodarczym; 2016, 19, 2
1899-2226
2353-4869
Pojawia się w:
Annales. Etyka w Życiu Gospodarczym
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 18

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