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Wyszukujesz frazę "Kaminski, B." wg kryterium: Autor


Tytuł:
Spectrum of multidimensional dynamical systems with positive entropy
Autorzy:
Kamiński, B.
Liardet, P.
Powiązania:
https://bibliotekanauki.pl/articles/1291698.pdf
Data publikacji:
1994
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
Applying methods of harmonic analysis we give a simple proof of the multidimensional version of the Rokhlin-Sinaǐ theorem which states that a Kolmogorov $ℤ^d$-action on a Lebesgue space has a countable Lebesgue spectrum. At the same time we extend this theorem to $ℤ^∞$-actions. Next, using its relative version, we extend to $ℤ^∞$-actions some other general results connecting spectrum and entropy.
Źródło:
Studia Mathematica; 1994, 108, 1; 77-85
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the directional entropy for ℤ²-actions on a Lebesgue space
Autorzy:
Kamiński, B.
Park, K.
Powiązania:
https://bibliotekanauki.pl/articles/1217275.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
We define the concept of directional entropy for arbitrary $ℤ^2$-actions on a Lebesgue space, we examine its basic properties and consider its behaviour in the class of product actions and rigid actions.
Źródło:
Studia Mathematica; 1999, 133, 1; 39-51
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Suitability of re-compacted fly-ash-slag-soil mixes for construction of road pavement
Autorzy:
Kaminski, B.
Czerniak, A.
Powiązania:
https://bibliotekanauki.pl/articles/60171.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Opis:
Forest communication network consists mainly of dirt roads. Technical problems with forest roads transport occur especially for these dirt roads which are constructed on cohesive topsoil. Lignite fly-ash may be utilized for successful stabilization of cohesive topsoil dirt roads. The pavements stabilized with fly-ash often perform unsatisfactorily under heavy loads and failures are noted as a result. The research described in this paper aimed at developing technical solution for reconstruction of road pavements constructed with admixture of fly-ash and fly-ashslug respectively. Bearing strength variability of fly-ash-soil and fly-ash-slag-soil mixes after failure and application of repair method were considered. Crushed then re-compacted with addition of stabilizer soil mixes as influenced by period and conditions of binding were tested. The stabilizers utilized for testing were both active fly-ash of lignite group IIIC and coke blast furnace slag. Two varieties of mixes were tested. These varieties were sandy clay mixed with addition of 14 % lignite fly-ash and the mixture of 10 % lignite fly-ash and 10% furnace slag respectively. The samples were crashed and re-compacted after 14- and 42-day period of curing in optimal and air-dump conditions. After sample curing deformation modules were measured with the utilization of VSS press. The deformation module measurement procedure was the basis for assessment of the mixtures suitability for reconstruction of forest road pavements after failure. Higher bearing performance especially after air-dump curing occurred for sole fly-ash addition mix varieties. The technical guidelines for reconstruction of road pavements with utilization of re-used crashed pavement materials were developed as well. The clayey pavements after failure may be stabilized again in fortnight period after construction. The repair procedure includes re-compaction and watering to achieve optimum moisture content. In addition, the optimum doses of stabilizer content for the reconstruction after longer than forthright period since the road construction were identified.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2007, 3
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On extremal and perfect σ-algebras for flows
Autorzy:
Kamiński, B.
Kowalski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1218468.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
It is shown that there exists a flow on a Lebesgue space with finite entropy and an extremal σ-algebra of it which is not perfect.
Źródło:
Studia Mathematica; 1998, 129, 2; 179-183
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relatively perfect σ-algebras for flows
Autorzy:
Blanchard, F.
Kamiński, B.
Powiązania:
https://bibliotekanauki.pl/articles/1289369.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
entropy
flow
principal factor
relatively excellent σ-algebra
relatively perfect σ-algebra
Opis:
We show that for every ergodic flow, given any factor σ-algebra ℱ, there exists a σ-algebra which is relatively perfect with respect to ℱ. Using this result and Ornstein's isomorphism theorem for flows, we give a functorial definition of the entropy of flows.
Źródło:
Studia Mathematica; 1995, 114, 1; 71-85
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Price patterns in an oligopoly with switching cost and uncertain demand
Autorzy:
Zawisza, M.
Kamiński, B.
Powiązania:
https://bibliotekanauki.pl/articles/406324.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
price competition
switching cost
agent-based modeling
uncertain demand
price volatility
Opis:
Characteristics of price patterns have been investigated in an oligopoly market with costs for switching a provider. Two regimes of a company’s access to information have been considered. In the benchmark scenario, firms make decisions based on perfect information about demand. In the other – more realistic scenario – they conduct market research to estimate an unknown demand curve and therefore face uncertainty regarding their profit function, which in turn leads to suboptimal decision making. The authors inspected how a company’s access to information on demand, costs for switching a provider and the rate of market renewal influence price patterns on the market. It has been shown that positive switching cost is a sufficient condition for price dispersion, as well as imperfect information about the company's profit function, e.g. from market research. The average price under the perfect information regime is lower than under market research based price setting, a higher switching cost makes it easier for companies to coordinate their prices and a higher rate of market renewal softens the influence of the switching cost on market price.
Źródło:
Operations Research and Decisions; 2013, 23, 3; 71-89
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A concept of propulsion and power supply systems for PRT vehicles
Koncepcja systemów napędowych i zasilania dla pojazdów PRT
Autorzy:
Kamiński, B.
Nikoniuk, M.
Drązikowski, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/224077.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
PRT vehicles
hybrid power
propulsion systems
pojazd PRT
zasilanie hybrydowe
systemy napędowe
Opis:
An innovative propulsion and power supply topology for Personal Rapid Transit is presented. The concept is based on application of linear induction motor for propulsion and hybrid power supply using Contactless Energy Transfer supported by a supercapacitor energy storage. Proposed solution is based on the application of linear induction motor as a propulsion and inductive contactless energy transfer.
Zaprezentowano topologię innowacyjnego napędu i zasilania Personal Rapid Transit. Koncepcja opiera się na zastosowaniu liniowego silnika indukcyjnego do napędu i hybrydowego zasilania z użyciem bezstykowego przenoszenia energii wspieranego przez kondensator magazynowania energii. Zaproponowane rozwiązanie polega na zastosowaniu liniowego silnika indukcyjnego, jako napędu i indukcyjnym bezstykowym przekazie energii.
Źródło:
Archives of Transport; 2013, 27-28, 3-4; 81-93
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł

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