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Wyświetlanie 1-10 z 294
Tytuł:
Kataliza heterogeniczna
Autorzy:
Rachwalik, R.
Ogonowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/273835.pdf
Data publikacji:
2010
Wydawca:
Roble
Tematy:
kataliza heterogeniczna
katalizatory heterogeniczne
jonon
heterogeneous catalysis
heterogeneous catalysts
ionium
Źródło:
LAB Laboratoria, Aparatura, Badania; 2010, 15, 2; 19-26
1427-5619
Pojawia się w:
LAB Laboratoria, Aparatura, Badania
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modified Distributed Arithmetic Concept for Implementations Targeted at Heterogeneous FPGAs
Autorzy:
Rawski, M.
Powiązania:
https://bibliotekanauki.pl/articles/226835.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
distributed arithmetic
FPGA
heterogeneous programmable structures
Opis:
Distributed Arithmetic (DA) plays an important role in designing digital signal processing modules for FPGA architectures. It allows replacing multiply-and-accumulate (MAC) operations with combinational blocks. The quality of implementations based on DA strongly depends on efficiency of methods that map combinational DA block into FPGA resources. Since modern FPGAs have heterogeneous structure, there is a need for quality algorithms to target these structures and the need for flexible architecture exploration aiding in appropriate mapping. The paper presents a modification of DA concept that allows for very efficient implementation in heterogeneous FPGA architectures.
Źródło:
International Journal of Electronics and Telecommunications; 2010, 56, 4; 345-350
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Complex Dynamics in a Bertrand Duopoly Game with Heterogeneous Players
Autorzy:
Dubiel-Teleszyński, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/483303.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Bertrand duopoly
heterogeneous expectations
nonlinear dynamics
chaos
Opis:
A heterogeneous Bertrand duopoly game with bounded rational and adaptive players manufacturing differentiated products is subject of investigation. The main goal is to demonstrate that participation of one bounded rational player in the game suffices to destabilize the duopoly. The game is modelled with a system of two difference equations. Evolution of prices over time is obtained by iteration of a two dimensional nonlinear map. Equilibria are found and local stability properties thereof are analyzed. Complex behavior of the system is examined by means of numerical simulations. Region of stability of the Nash equilibrium is demonstrated in the plane of the speeds of adjustment. Period doubling route to chaos is presented on the bifurcation diagrams and on the largest Lyapunov characteristic exponent graph. Lyapunov time is calculated. Chaotic attractors are depicted and their fractal dimensions are computed. Sensitive dependence on initial conditions is evidenced.
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2010, 2, 2; 95-116
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maintenance problems of technical systems composed of heterogeneous elements
Autorzy:
Jodejko, A.
Powiązania:
https://bibliotekanauki.pl/articles/2069556.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
multi-unit system
heterogeneous system
block maintenance policy
economic dependency
Opis:
The paper gives a short insight into the complexity of maintenance problems of a system composed of heterogeneous elements. The article proposes a simple algorithm to define parameters of block maintenance policy of multi-unit systems composed of elements with economic dependency. The procedure may be used especially in the case when elements of a system are not identical in the sense of their probability characteristics and analytical solution is inaccessible.
Źródło:
Journal of Polish Safety and Reliability Association; 2008, 1; 187--193
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Input Variable Partitioning Method for Decomposition-Based Logic Synthesis targeted Heterogeneous FPGAs
Autorzy:
Rawski, M.
Powiązania:
https://bibliotekanauki.pl/articles/227236.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
functional decomposition
heterogeneous FPGA
bound set selection
Opis:
The functional decomposition has found an application in many fields of modern engineering and science, such as combinational and sequential logic synthesis for VLSI systems, pattern analysis, knowledge discovery, machine learning, decision systems, data bases, data mining etc. It is perceived as one of the best logic synthesis methods for FPGAs. However, its practical usefulness for very complex systems depends on efficiency of method used in decomposition calculation. One of the most important steps in functional decomposition construction is selection of the appropriate input variable partitioning. In case of modern heterogeneous programmable structures efficiency of methods used to solve this problem becomes especially important. Since the input variable partitioning problem is an NP-hard, heuristic methods have to be used to efficiently and effectively search for optimal or near-optimal solutions. The paper presents a method for bound set selection in functional decomposition targeted FPGAs with heterogeneous structure. This heuristic algorithm delivers optimal or near optimal results and is much faster than other methods.
Źródło:
International Journal of Electronics and Telecommunications; 2012, 58, 1; 15-20
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Solving a large heterogeneous-agent general equilibrium model with labour market frictions
Autorzy:
Antosiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/205786.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
heterogeneous–agent model
search and matching
DSGE
computational metod
Opis:
In this paper we build and solve a heterogeneous-agent dynamic stochastic general equilibrium (DSGE) model with incomplete markets in the spirit of Krussel and Smith (1998). We expand this model to account for search and matching labour market frictions, using the classic Mortensen and Pissarides (1994) framework. The model, therefore, combines two important strands of economic modelling and presents a numerical challenge in terms of solving the model due to the inclusion of additional dimensions in the optimization problem. Despite the addition of additional state variables and higher dimensionality, we show that we are able to efficiently solve it numerically using value function iteration and we document basic properties of the model.
Źródło:
Control and Cybernetics; 2016, 45, 4; 513-523
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of unifying the data exchange interface in heterogeneous ITS networks
Autorzy:
Sumila, M.
Powiązania:
https://bibliotekanauki.pl/articles/393649.pdf
Data publikacji:
2014
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
Datex2
NTCIP
heterogeneous network
shared interface
sieć heterogeniczna
wspólny interfejs
Opis:
A concept of unifying the communications interface between heterogeneous ITS subsystems was presented in this paper. In its first part, it concentrates on causes for and consequences of having heterogeneous networks. Then it goes to present methods developed to counteract that phenomenon through the seven layer OSI model and the CORBA standard. In latter parts, two data exchange protocols in heterogeneous ITS networks were presented. In the context of their limitations, an original concept was developed using a shared database as a universal communication interface between different ITS systems.
Źródło:
Archives of Transport System Telematics; 2014, 7, 4; 45-49
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling the Arithmetic Decomposition of DA-LUT Block for Heterogeneous FPGA Structures
Autorzy:
Staworko, M.
Rawski, M.
Powiązania:
https://bibliotekanauki.pl/articles/226414.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
distributed arithmetic
FPGA
FIR filter
heterogeneous programmable structures
Opis:
Distributed arithmetic is well known technique of designing FIR filters in FPGA devices. The quality of such filter implementation strongly depends on synthesis results of the DALUT block. Heterogeneity of modern FPGA structures introduces new possibilities into implementation process, that may lead to better results, but also makes it more complicated. This paper presents the simple mathematical model for estimating the necessary FPGA resources to implement DA-LUT using decomposition-based approach. The model takes into account the type of logic cells or memory blocks used for decomposition process. The proposed model is help ful to determinate the DALUT decomposition strategy for further automation of modified distributed arithmetic decomposition method.
Źródło:
International Journal of Electronics and Telecommunications; 2012, 58, 4; 335-344
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identifying limits of scalability in distributed, heterogeneous, layer based monitoring concepts like SLAte
Autorzy:
Hilbrich, M.
Muller-Pfefferkorn, R.
Powiązania:
https://bibliotekanauki.pl/articles/305401.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
distributed
scalable
slate
heterogeneous
grid
monitoring
Opis:
In this paper we present the concept of a scalable job centric monitoring infrastructure. The overall performance of this distributed, layer based architecture called SLAte can be increased by installing additional servers to adapt to the demands of the monitored resources and users. Another important aspect is to offer a uniform global view on all data which are stored distributed to provide an easy access for users or visualisation tools. Additionally we discus the impact of these uniform access layer on scalability.
Źródło:
Computer Science; 2012, 13 (3); 23-33
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristic of Vertical Reynolds Shear Stress in a Patchy Heterogeneous Open Channel
Autorzy:
Olatunji, Peter Folorunso
Powiązania:
https://bibliotekanauki.pl/articles/1177793.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Reynolds Stress
gravel
heterogeneous
open channel
patchy
turbulence
vegetation
Opis:
In turbulent flow, the Reynolds stress provides an understanding of the shear dispersion within the flow. Turbulence can be said to have an effect equivalent to the Reynolds shear stresses and are indicators of turbulence transport. This paper examined the characteristic of vertical Reynolds Shear stress in a patchy heterogeneous open channel using two experimental conditions for flexible and rigid vegetation interaction with gravel bed. The results show the value of vertical Reynolds stress decreases downstream along the channel section and as the distance from change in roughness increases. This is attributed to the effects of the bed roughness configuration (due to the preceding vegetated bed roughness) on the vertical Reynolds stress distribution. However, the position of maximum vertical Reynolds stress is located near bed over the vegetated zone. This provides an indication that the vegetated bed serves as the primary source of turbulence for the flow.
Źródło:
World Scientific News; 2018, 99; 1-14
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 294

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