Hongquan Zhang

Jul 4, 2023 | dx.doi.org | Shun Wang |Jing Hui Wang |Hongquan Zhang |Shu Chen

AbstractNanoscale pores are widely developed in tight oil, and the scale effect significantly affects the dynamic behavior of crude oil molecules at different positions in the nanopores. The molecular dynamics simulation method was used to study the mechanism of threshold pressure of tight oil molecules at different positions in quartz and calcite nanopores and the influence of pore radius on threshold pressure.

May 9, 2023 | opg.optica.org | Qing Zhang |Hongquan Zhang |Kexin Zhao |Junchang Yu

AbstractIn this Letter, a polymer optical fiber (POF) detector with a convex spherical aperture microstructure probe is designed for low-energy and low-dose rate gamma-ray detection. Simulation and experimental results demonstrate that this structure has a higher optical coupling efficiency and that the angular coherence of the detector depends strongly on the depth of the probe micro-aperture.