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This paper proposes a new method for the pattern synthesis of sparse concentric circular array. This method can avoid the premature and improve the poor capability of local optimization of the traditional genetic algorithm. Alternatively implementing the two kinds of genetic breeding operations can effectively alleviate the dependence of the algorithm's convergence on the choice of the initial group...
This paper presents the adaptive speed control in the permanent synchronous motor (PMSM) drive for a non-stationary repetitive process using particle swarms. The implementation of the particle swarm optimizer (PSO) for the speed controller on-line optimization in PMSM drive system is proposed. The PSO is utilized for the purpose of optimizing in real-time the proportional and integral gains of the...
NoSQL database is deemed as an ideal substitution for the traditional SQL database in such scenarios as bigdata mining, business intelligence, SNS etc., which are characterized by large scale data processing and heavy concurrency workload. However, existing NoSQL databases handle key-value CRUD requests locally in a sequential way which may underutilize the multi-core computing resources on the underlying...
Simultaneous optimization of LDD and antipunchthrough implant conditions for ESD performance of very large width silicided output driver NMOSFET without snapback mode of operation is reported. Physical mechanisms responsible for performance improvement and device sensitivity to pulse rise time, with little or no dependence on TLP pulsewidth, are detailed.
A new and practical solution, Quantum-behaved Particle Swam Optimization (QPSO) algorithm, is applied to Aeroengine maximum thrust optimization implemented for some turbo fan engine. Simulation is carried out under different altitudes and velocities and shows that thrust can be increased by 7%~9%, 3%~5% more than by Particle Swam Optimization (PSO) algorithm. The influence of initial values on PSO...
Simultaneous optimization of LDD and Anti-punch-through implant conditions for ESD performance of very large width silicided output driver nMOSFET without snapback mode of operation is reported. Physical mechanisms responsible for performance improvement and device sensitivity to pulse rise time, with little or no dependence on TLP pulse width are detailed.
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