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This paper presents the optimal design of the light-emitting diode (LED) array combinations for three typical nonisolated continuous-conduction mode single-loop control LED drivers. Based on the LED Taylor series model and the equivalent circuits of these three LED drivers, the quality factor functions in their transfer functions of the control-to-output current are derived to predict the optimal...
An efficient wireless power transfer (WPT) of strongly coupled magnetic resonance (SCMR) with loops is shown here. This paper shows an optimal 3D loop design for SCMR systems, that is insensitive to misalignment, and exhibits higher efficiency than typical SCMR devices.
Previous researches focus on applying the Granger causality (GC) model to time-series DNA micro array data to infer gene regulatory networks. However, in biological datasets, the number of available time points is usually much smaller than the number of target genes. Therefore, people widely used a bivariate GC model, which might lead to a significant amount of false discoveries in the causality analysis...
This paper presents the optimal light-emitting-diode (LED) array combination for the single-loop continuous-conduction mode (CCM) boost driver. The Taylor series for describing the characteristics of the LED is used to characterize the relationship between the forward voltage and current of LEDs. Moreover, in order to predict the system performance, including system stability and maximum-efficiency...
This paper presents the optimal light-emitting-diode (LED) array combination for the peak current mode discontinuous-conduction-mode (DCM) boost driver, based on the efficiency consideration. The design guideline to specify the conduction mode for the operation of the employed boost driver corresponding to the combinations of an N×M LED array is proposed. The prototype circuit is built to compare...
This paper presents the optimal light-emitting-diode (LED) array combination for dual-loop continuous-conduction mode (CCM) boost driver. In order to more precisely characterize the non-linear V-I curve of LEDs, the LED model with Taylor series expression is constructed. Moreover, the system transfer functions are derived by equivalent circuit of the boost driver to predict the system performance,...
A preparative method of furfural from bagasse catalyzed by the ionic liquid [Hmim] HSO4 (1-Methylimidazolium hydrogen sulfate) was developed in the paper and response surface methodology (RSM) was successfully applied to optimize the process. Central Composite Rotatable Design (CCRD) was employed to search for the optimal furfural yield. By the comparison of hydrolysis results of [Hmim] HSO4 and concentrated...
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