The quasi one-dimension compressible flowfield coupled to the three-dimension propellant grain regression solved by the level-set method was used to simulate the transient internal ballistics of solid rocket motor. One-dimension flowfield instead of three
A two-port encapsulated low-contrast grating with suppressed zeroth order under normal incidence is described in this paper. Based on such grating configuration, the improved efficiency and spectral bandwidth of the first order for TE and TM polarizations
This paper presents a novel laser-induced fluorescence ( LIF) Lidar system for marine oil spilling detection. A bifurcated Y-type optical fiber and an optical collimating lens compose a coaxial configuration transceiver for this LIF-Lidar system. This LIF