We have developed a genetic algorithm (GA) approach to the problem of task scheduling for multiprocessor systems. Our requires minimal specific information and no operators or repair mechanisms. Key features our system include flexible, adaptive representation an incremental fitness function. Comparison with traditional methods indicates that GA is competitive in terms solution quality if it has sufficient resources perform its search. Studies nonstationary environment show able...

Traffic flow forecasting is crucial to Intelligent Transportation Systems (ITS), particularly for route planning and traffic management. Spatiotemporal graph neural networks have been widely used this purpose, where a global structure mainly used, but local features are ignored. Multi-scale spatiotemporal features—the combined application of features—can help effectively discover the underlying patterns. This study proposed multi-scale adaptive model called Adaptive SpatioTemporal...

In a pursuit-evasion (PE) game, each pursuer attempts to minimize the distance between (P) and evader (E) capture it in shortest time, whereas tries maximize escape from being captured. this paper, we deal with PE games fast which can match speed of or outrun pursuers. We apply well-known Apollonius circles formed by analyze how find better strategy prolong time whenever successful is not possible. Conversely, observing changing states evader, pursuers cooperatively contain enclosing inside...

This paper introduces a divide-and-conquer, heuristic task scheduling optimization approach on the challenging multi-pursuer multi-evader (MPME) games in which pursuers attempt to minimize time capture all evaders whereas try maximize time. The MPME problem is solved through two-step hierarchical approach. At high level, game divided into number of subgames or teams using combination Voronoi diagram and negotiation-based mechanism (through objective functions) make pursuit more efficient....

Abstract Ocean waves provide an abundant, clean, and renewable source of energy. Existing systems, typically hydraulic turbines powered by high-pressure fluids, are very large in size costly. Additionally, they require ocean which to operate. This paper details the design, development, laboratory prototype testing a wave power generation system comprising buoy that houses set mechanical devices permanent magnetic generator. The buoy, floating on surface ocean, utilizes vertical movement pull...

Equations governing nonlinear interactions among acoustic waves in water which satisfy the resonance conditions are derived from Burgers equation. Taking into account of second-order nonlinear, three-wave interaction is fundamental process equations. Then, taking equation as an example, energy transfer mechanism three quantitatively analyzed. And sound propagation studied through numerical calculation. An interesting phenomenon found that, when meet relationship a weak low-frequency and two...

The complicated mechanism of gas bubble oscillation in a sound field is quite fascinating. Based on the Keller-Miksis model, deliberate numerical investigation nonlinear radial oscillations driven by finite-amplitude waves presented. Some crucial control parameters oscillations, including equilibrium radius, acoustic frequency and pressure, are studied with multiple analysis methods. Parameter regions which beneficial for complex dynamic properties given. It's found that there an excitation...

Equations governing nonlinear interactions among acoustic waves in water which satisfy the resonance conditions are derived from Burgers equation. Taking into account of second-order nonlinear, three-wave interaction is fundamental process equations. Then, taking equation as an example, energy transfer mechanism three quantitatively analyzed. And sound propagation studied through numerical calculation. An interesting phenomenon found that, when meet relationship a weak low-frequency and two...

The complicated mechanism of gas bubble oscillation in sound field is quite fascinating. One simplified case a single motivated by specific finite-amplitude waves. Based on the modified Keller-Miksis model, theoretical and numerical investigation regular nonlinear radial oscillations driven different given waves presented. Some crucial control parameters oscillations, including radius bubble, acoustic frequency pressure, are studied with multiple analysis methods. Parameter regions which...

The low-frequency characteristic line spectrum contains significant information about underwater targets, which makes both its detection and control a hot topic of research. Attempts to suppress the by active strategy are greatly influenced tracking effect instantaneous spectrum, have deal with two specific technical problems in applications. Firstly, instability spectrum; and, secondly, uncertain compensation time delay, is closely related hydrological parameters. In order cope these...

A theoretical model is presented to describe the difference frequency beam characteristics of truncated parametric array generated by a panel piston radiator. In this model, low-pass acoustic filter used truncate virtual-source. The virtual-source can be viewed as volume distributed cylindrical source and conic within beyond Rayleigh distance, respectively. near position are significantly changed. Numerical simulation results show that beams substantially sharpened with distance between...