Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
In order to research the motion performance of vortex rings umbrella, finite element analytical approach is integrated to realize the complicated time varying motion mathematical model of vortex rings umbrella, as well as implements simulation and conformity validation for the model. At first, particle system is utilized to construct three-dimensional geometrical model of vortex rings umbrella according...
In virtual reality simulation, simulated objects under high-speed motion are easy to occur collision detection omission and inaccurate initial point of collision detection at adjacent discrete time point, considering this problem, collision detection methods of functions motion with time are given, which are based on integration of relative motion and space geometrical operation. Relative motion theory...
Compressed Air Energy Storage (CAES) is besides pumped hydropower, the other solution for large energy storage capacity. It can balance fluctuations in supply and demand of electricity. CAES is essential part of smart power grids. Linked with the flow structure and dynamic characteristic of electricity generation subsystem and its components, a simulation model is proposed. Thermo-dynamical performance...
We investigate the propagation of light impulse in aperiodic systems including Thue-Morse(TM) and Fibonacci sequence. Both refractive index and optical thickness are considered. At the same time, we calculate the transmission in TM sequence with negative refractive index by using the transfer matrix. We find many completely transparent electromagnetic states appear and the states' corresponding frequency...
Whether monetary policy should directly respond to asset boom-bust cycles has been in debate for decades. This paper tries to answer the question from the collateral channel of assets on real economy. By adding a partially endogenous financial shock in a reduced-form New Keynesian model, we find optimal monetary policy exists in the trade-off between current economic growth and future financial instability...
The behavior characteristics of sorption-desorption kinetics of imazethapyr in soil were studied with the batch equilibrium method, when the slight alkaline soil (Meadow saline Soil) and weak acid soil (Black paddy soil) was used as soil samples which had the similar organic matter content. It was shown that the adsorption and desorption of imazethapyr in soils can almost achieve equilibrium within...
An extended method for obtaining crypto-graphically strong substitution boxes (S-boxes) based on discretized chaotic map system (DCMS) is presented in this paper. The S-boxes' design criteria such as bijection, nonlinearity, strict avalanche, output bits independence and equiprobable input/output XOR distribution of these S-boxes are analyzed in detail. The results of numerical analysis show that...
In electric power market, the research of best bidding price is an important study, in which the calculation and description of node price is the key issue. Based on the highly effective ant colony algorithm, this paper proposes a methodology of best bidding for solving the optimal price model of the electric power market. We use the random global search capability of ant colony algorithm to deal...
Active contours model (snake) is a typical quantity dynamic contours model. Its main principle is to define a curve with energy in the area in which the researcher is interested, approaching the contours of the object through optimizing the energy function dynamically. Its biggest defect is that it can hardly handle the topological structure transformation when extracting the object contour. Geodesic...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.