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For a PWM inverter system, the output ac current is expected to be a sinusoidal waveform after filtering; however, PWM inverters have two drawbacks causing distortion of output waveform. One is the presence of harmonics, and the other is the variations of the system parameters. In this paper, a robust Doubly Coprime Factorization Disturbance Observer (robust DCFDOB) is applied to a dc-to-ac inverter...
Maribacter thermophilus strain HT7-2T, isolated from Ulva prolifera collected from the intertidal zone of Qingdao sea area, China. To date, M. thermophilus strain HT7-2T is the only one which has been found that has a relatively higher optimum temperature compared to other Maribacter species and it is also the first strain to be described that is facultatively anaerobic while other identified strains...
Extreme learning machine (ELM) as a neural network algorithm has shown its good performance, such as fast speed, simple structure etc, but also, weak robustness is an unavoidable defect in original ELM for blended data. We present a new machine learning framework called “LARSEN-ELM” to overcome this problem. In our paper, we would like to show two key steps in LARSEN-ELM. In the first step, preprocessing,...
Constrained random verification (CRV) methodology has been identified as an efficient solution to functional verification challenges. In practical cases, it is required to implement constraints with variable ordering to put essential efforts on cared patterns. However, handling constraints with variable ordering may encounter performance degradation of pattern generation speed and distribution. To...
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