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Wyszukujesz frazę "47.35.+i" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Ultrasonic Waves in Magnetic Liquids: Two-Phase Approach and Experimental Results
Autorzy:
Kaczmarek, M.
Hornowski, T.
Skumiel, A.
Łabowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2013251.pdf
Data publikacji:
2000-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
47.35.+i
75.50.-y
62.60.+v
Opis:
A two-phase model of dynamical behavior of magnetic liquid influenced by constant magnetic field is considered. The model takes into account mutual interaction of clusters giving skeleton's stiffness and interaction of clusters with free liquid producing attenuation and dispersion of waves for transversally isotropic system. Rotational degrees of freedom are disregarded. Predictions of the model are discussed for variable amount of clusters and compared with experimental data for different magnetic fields.
Źródło:
Acta Physica Polonica A; 2000, 97, 4; 639-649
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pulsed Power Application of TDI-Type Pseudospark Switches
Autorzy:
Bochkov, V.
Bochkov, D.
Gnedin, I.
Panov, P.
Powiązania:
https://bibliotekanauki.pl/articles/1807939.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
52.35.Bj
52.35.Lv
52.75.Kq
52.77.-j
47.35.-i
Opis:
The module of pulsed power electrohydraulic installation equipped with a technological tank having 2 working electrodes, storing energy up to 3 kJ at average power of 10 kW was constructed and tested. As power switching elements pseudospark switches of TDI-type were used. During the tests organic materials (flax straw) were processed. In the paper various factors, affecting PSS electrodes erosion, are considered. Valuable recommendations on providing the best service time of the switches are summarized. The major object of the investigations is the development of technological system capable of providing a continuous production process with power consumption up to hundreds of kWh with large volumes (up to several tons) processed materials transportation. The process continuity substantially reduces cost of processing, simplifies design, and improves operational characteristics of the device and finally increases competitiveness of the production.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 1118-1121
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Balance in the Turbulent World of Economy
Autorzy:
Jakimowicz, A.
Juzwiszyn, J.
Powiązania:
https://bibliotekanauki.pl/articles/1388526.pdf
Data publikacji:
2015-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
89.65.Gh
47.27.Jv
47.15.G-
47.35.-i
47.32.C-
01.65.+g
Opis:
The stock market balance can be presented as a result of mutual effect of the supply and demand on the market. This creates high-frequency dynamics of prices for shares, what in turn leads to the appearance of the three-dimensional rotary trajectories of the market. The 3-D space is a Cartesian product: prices, volumes, and time. In this space whirling vectors form rotary-spiral trajectories and, they in turn, determine in the appropriate time periods side surfaces of solids of revolution, which rotate as well. Perpendicular projections of rotary trajectories on planes with standing out time axis cause that economic rotary phenomena are depicted on the mentioned planes by means of flat zigzags. Double rotating of economic vectors resembles precession movement. This is the precession movement which guarantees oscillating-rotating vectors around the hypothetical line of economic balance. Economic vectors are always set in rotary motion mainly by stimulating the vectors of demand and supply. Dynamically changing volumes of the mentioned forces cause that permanent state of economic balance practically do not exist in market reality. In the modified by the authors cobwebbed model states of fragile balance are explained by means of precession and accompanying it nutation. The rotary movement occurs universally in our world. The effects of vortexes from the world of nature are extremely quickly reflected in changing in chaotic way forces of demand and supply which in turn are the main generators of economic vortexes. Then the relationship is unambiguous and can be expressed by a short general statement claiming that vortexes generate vortexes regardless of the environment in which they occur. The resemblance between the rotary trajectories observed in hydrodynamics and the stock market rotary-spiral trajectory was the inspiration of the work for creating the econophysical analogue of the so-called stock market Reynolds number (R_{e}). The academic community has long sought a description of the phenomenon of turbulence in financial markets, and this article is an attempt to face this challenge. The original idea behind developing an economic equivalent of the Reynolds number was that market vectors of volumes, prices and time components can be treated as particles of a stream of liquid flowing through a pipe of a given cross-section. The Reynolds number, defined in this way, can be applied in research into the dynamics of stock exchange indices and, in particular, for the development of short-term warning forecasts. Additionally, it can be treated as a coefficient confirming (or rejecting) long-term stock market predictions.
Źródło:
Acta Physica Polonica A; 2015, 127, 3A; A-78-A-85
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Segregation of CoPt Polycrystalline Alloy
Autorzy:
Godowski, P. J.
Ohgi, T.
Fujita, D.
Powiązania:
https://bibliotekanauki.pl/articles/2036875.pdf
Data publikacji:
2003-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.35.Dv
68.47.De
79.60.-i
Opis:
Composition-depth profiling using different emission angles of X-ray photoelectron spectroscopy showed surface enhancement of platinum concentration of the CoPt(30at%) alloy extensively annealed to 1000~K in ultrahigh vacuum. The results are compared with theoretical predictions basing on models with no crystal face dependence.
Źródło:
Acta Physica Polonica A; 2003, 104, 1; 35-44
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
X-Ray Photoelectron Spectroscopy - Methodology and Application
Autorzy:
Papis-Polakowska, E.
White, R.
Deeks, C.
Mannsberger, M.
Krajewska, A.
Strupinski, W.
Płocinski, T.
Jankowska, O.
Powiązania:
https://bibliotekanauki.pl/articles/1364037.pdf
Data publikacji:
2014-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
79.60.-i
81.05.ue
68.47.Gh
68.35.bg
68.35.bj
Opis:
The crucial measurements aspects of X-ray photoelectron spectroscopy, such as chemical state analysis, depth profiling, mapping, and thickness calculation have been presented. The metal alloys, $Ti_2O_5$, graphene and type-II InAs/GaSb superlattice structures have been examined by using the new Thermo Scientific K-Alpha X-ray Photoelectron Spectrometer.
Źródło:
Acta Physica Polonica A; 2014, 125, 4; 1061-1064
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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