Autor: Jaskółka, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Temperature Dependence of Photofield Emission from Tungsten ⟨001⟩ Direction
Autorzy:: Radoń, T.
Jaskólka, S.
Powiązania:: https://bibliotekanauki.pl/articles/1945415.pdf
Data publikacji:: 1996-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 79.60.Bm
79.70.+q
71.25.Pi
Opis:: The existence of a minimum lying by 0.2 eV above the Fermi level, in the band structure of the ⟨001⟩ direction of tungsten, has been confirmed at temperatures of 600÷800 K of the emitter. With increasing temperature a slight rise of the Fermi level in relation to the band structure has been observed.
Źródło:: Acta Physica Polonica A; 1996, 89, 5-6; 665-668
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Photofield Emission Spectroscopy of Ba on W
Autorzy:: Radoń, T.
Jaskółka, S.
Powiązania:: https://bibliotekanauki.pl/articles/1932137.pdf
Data publikacji:: 1995-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.20.-r
79.70.+q
Opis:: Optical transitions in photofield emission from barium covered tungsten were observed. The initial energies of the excited electrons obtained for different crystallographic planes range near the values of s₁ = -0.07 ± 0.02 eV and s₂ = -0.28 ± 0.04 eV with respect to the Fermi level. The energies are ascribed to electrons in the thin barium layer. The work functions of the barium covered tungsten (100), (111) and (100) planes were estimated using field emission method. In order to measure very small photocurrents a modulated laser radiation and the phase-sensitive detection were used.
Źródło:: Acta Physica Polonica A; 1995, 87, 3; 657-662
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Residual Gas Effect on Photofield Emission from Tungsten (111) Face
Autorzy:: Hądzel, P.
Radoń, T.
Jaskółka, S.
Powiązania:: https://bibliotekanauki.pl/articles/1964227.pdf
Data publikacji:: 1997-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 79.70.+q
79.60.Dp
73.20.Hb
Opis:: Using the photofield emission method, surface states and bulk excitations from clean and residual gas adsorbed (111) face of tungsten were measured. Residual gas shaded the surface states and diminished photoemission from the bulk excitations. Gas of the artificially increased background pressure 10$\text{}^{-8}$ Pa adsorbed during the measurement deforms the photocurrent-voltage characteristic; the optical excitations observed for clean surfaces are exhibited, diminished or lost. For the adsorbed (111) face the state related to the metal-gas surface has been observed.
Źródło:: Acta Physica Polonica A; 1997, 91, 6; 1141-1147
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: VoIP Anomaly Detection - selected methods of statistical analysis
Autorzy:: Dymora, P.
Mazurek, M.
Jaskółka, S.
Powiązania:: https://bibliotekanauki.pl/articles/106150.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: Hurst factor
anomaly detection
self-similarity
long-range dependence
Opis:: Self-similarity analysis and anomaly detection in networks are interesting fields of research and scientific work of scientists around the world. Simulation studies have demonstrated that the Hurst parameter estimation can be used to detect traffic anomaly. The actual network traffic is self-similar or long-range dependent. The dramatic expansion of applications on modern networks gives rise to a fundamental challenge to network security. The Hurst values are compared with confidence intervals of normal values to detect anomaly in VoIP.
Źródło:: Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2016, 16, 2; 14-19
1732-1360
2083-3628
Pojawia się w:: Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:: Biblioteka Nauki

Artykuł

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