no code implementations • 11 Feb 2021 • Jianeng Zhou, Zhongxiang Wang, Feng Huang, Liang Chen
We investigate this possibility by fitting the spectrum with the photon-ALP oscillation model, and find that the parameter space of ALP mass $m_a\leq 10^{-8}$\, eV and the coupling constant (between photons and ALPs) $g_{a\gamma}$=1. 16--1. 48$\times 10^{-10}$\, GeV$^{-1}$ can provide a fit to the line-like feature, while the magnetic field at the emission site of $\gamma$-rays is fixed at 0. 7\, G.
High Energy Astrophysical Phenomena
no code implementations • 1 Nov 2017 • Zhongxiang Wang, Ali Shafahi, Ali Haghani
A novel decomposition algorithm is proposed to solve the integrated model.
no code implementations • 1 Nov 2017 • Ali Shafahi, Zhongxiang Wang, Ali Haghani
Through importing the generated trips of the routing problems into the bus scheduling (blocking) problem, it is shown that the proposed model uses up to 13% fewer buses than the common traditional routing models.