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Honey bees are important model organisms for neurobiology, because they display a large array of behaviors. To link behavior with individual gene function, quantitative polymerase chain reaction is frequently used. Comparing gene expression of different individuals requires data normalization using adequate reference genes. These should ideally be expressed stably throughout lifetime. Unfortunately,...
In this study, a principal model of a brushed direct-current (DC) motor that has become a benchmark is described. Then it stability program was designed based on linear quadratic optimal control theory and the controllability and observability were studied. Choosing brushed DC motor output angle θ as control variables. Simulation on this control system in Matlab/Simulink software environment was described...
Modelling of VSC HVDC systems is a difficult task that requires a trade-off between level of detail and modelling effort, simulation speed, and data requirements. In this paper a generic VSC HVDC model for stability studies is proposed. It is based on coupled current injectors, allowing easy implementation in most commercial stability programs. The application scope has been demonstrated. Simulations...
Recent blackouts have shown that system swings have a critical effect on the operation of protective relays. The common method of investigating system swings and their effect on relays is to use a stability program and determine the effective impedance seen by the relay. Unfortunately, it is difficult to test a relay scheme with the resulting impedance trajectory. The inputs to relays are voltage...
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