Hongwei Li

Nov 14, 2024 | biorxiv.org | Yang Ji |Hongwei Li |Aaron T. Hess |Joseph G. Woods

AbstractPurpose:To optimize pseudo-continuous arterial spin labeling (PCASL) parameters to maximize SNR efficiency for RF power constrained whole brain perfusion imaging at 7 T. Methods:We used Bloch simulations of pulsatile laminar flow to optimize the PCASL parameters for maximum SNR efficiency, balancing labeling efficiency and total RF power.

Aug 31, 2024 | mdpi.com | Sheng Zhang |Hongwei Li |Bo Xu

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Jul 27, 2024 | onlinelibrary.wiley.com | Hongwei Li |Jiang Yang |Wei Zhang

In this paper, we investigate the nonlocal-in-time Allen-Cahn equation (NiTACE), which incorporates a nonlocal operator in time with a finite nonlocal memory. Our objective is to examine the well-posedness of the NiTACE by establishing the maximal regularity for the nonlocal-in-time parabolic equations with fractional power kernels. Furthermore, we derive a uniform energy bound by leveraging the positive definite property of kernel functions.

Nov 15, 2023 | medium.com | Hongwei Li

How Airbnb leverages ML/NLP to extract useful information about listings from unstructured text data to power personalized experiences for guests. At Airbnb, it's important for us to gather structured data about listings and better understand the data, so we can help Hosts provide great experiences for guests. For example, guests who work remotely need to know if a listing has a suitable workspace and reliable internet, while guests with children might need items like highchairs and cribs.

Aug 24, 2023 | mdpi.com | Shuaibing Li |Hongwei Li |Zongying Li |Lilong Dou

1. IntroductionThe on-load voltage regulating a transformer plays a crucial role in power systems by regulating voltage and reactive power flow to ensure smooth operation. The oil-immersed on-load tap changer (OLTC) is a key component of the on-load voltage-regulating transformer responsible for voltage regulation. However, it is prone to wear, spark, and ablation during the tapping process, which can degrade its performance.