Jian Chen

TL;DR: The optimum bandwidth of an analog-to-digital converter is found to be 0.5 times symbol rate for both RZ- and NRZ- PSK systems, different from the direct-detection counterparts.

TL;DR: In this paper , the deformed microstructure and fracture morphology of a hot-extruded Mg-9.1Y-1.8Zn (wt%) alloy at deformation temperatures of 250-400 °C and strain rates of 0.005-0.1 s−1.

TL;DR: In this article, a full-automatic high-precision optical guide device consisting of a fairing, a housing, an optical lens group connected with the housing, a bearing connected with housing and the lower portion of a rotary table, an infrared CCD fixed to the upper portion of the rotary tables and optically coaxial with the optical lens groups, a rotating table connection shaft coaxially connected with a conducting ring, a motor connected with lower portion and a servo controller, an encoder connected with servo controllers, and a rate gyroscope connected with

TL;DR: Based on genetic algorithm, an acoustic metasurface absorber (AMA) composed of micro-perforated plates (MPPs) and impedance matching coiled-up cavities (IMCCs) is proposed in this paper .

TL;DR: In this article, an optimal electricity-heat IES energy flow model considering the complementary relationship with heat pump is proposed, and the interior-point method is applied to solve this model.