Effects of Raman Amplification on Propagation Characteristics of the Soliton

Pulse compression in dispersion-decreasing-like fibers

“…It shows that deep study in the correlative field need use of new methods. The method of second-harmonic generation frequency-resolved optical gating (SHG-FROG) can exactly measure temporal waveform and other parameters of the optical pulse [16][17][18][19]. In order to perform deep investigation in this field, we investigate pulse compression characteristics in dispersion-decreasing-like fibers (DDLF) by employing the SHG-FROG technique.…”

Prediction for Percentage of Vehicle Entering Expressway Rest Area Based on BP Neural Network

“…According to current documents, the calculation on the percent of mainline traffic entering mainly includes the methods below: the elastic coefficient method proposed in the Japanese Expressway Design Standard [1]; the formula based on the variable of the distance from the prior rest area put forward by Federal Highway Administration (FHWA) [2]; the prediction model based on transportation potential theory raised by Jianwei WANG [3] and the prediction method based on vehicle continuous travel time of Hongjun CUI [4,5]. The most common one is the elastic coefficient method, which is to acquire the linear relation between the percentage of different vehicles entering the rest area and the change rate of city's GDP or the growth rate of expressway mileage based on the a research result of Japanese four mainlines in 1991.…”