Xiqian Zhang

Jul 24, 2024 | rbmojournal.com | Ruiqiong Zhou |Mei Dong |Zhaoyi Wang |Li Huang |Songlu Wang |Ye Chen | +3 more

ABSTRACTDo different timings of progesterone administration for day 5 and day 6 blastocysts affect the live birth rate (LBR) of artificial frozen embryo transfer (FET) cycles? This retrospective cohort study included 1362 patients who underwent artificial FET cycles. The effects of 6 and 7 days of progesterone administration prior to blastocyst transfer on clinical outcomes were compared in day 5 and day 6 blastocysts. Univariable and multivariable regression analyses were undertaken.

Nov 28, 2023 | mdpi.com | Guanghua Zhang |Xiqian Zhang |Shasha Dai |Linghao Zeng

1. IntroductionTarget tracking plays an important role in both civilian and military fields [1,2,3,4]. It aims to estimate the kinematic state (e.g., position, velocity and acceleration) of a target in real time [5]. Target tracking problems are usually solved in the framework of state-space models, and the state estimation can be obtained by solving the filtering problem of a state-space model. The hidden Markov chain (HMC) model is the most commonly used state-space model for target tracking.