Jiahui Yu

Dec 13, 2024 | academicradiology.org | Huiyuan Zhu |Zike Huang |Jiahui Yu |Shiqing Wang |Guangyu Tao |Jun Xing | +7 more

Abbreviations LDCT (low-dose computed tomography) SDCT (standard-dose computed tomography) FBP (filtered back projection) ASIR-V (adaptive statistical iterative reconstruction-V) DLIR (deep learning image reconstruction) sub-mSv (sub-milliSievert) DLIR-H (high-strength deep learning image reconstruction) DLIR-M (medium-strength deep learning image reconstruction) ASIR-V-50% (adaptive statistical iterative reconstruction-V at a level of 50%) CTDIvol (volumetric CT dose index) DLP (dose-length...

May 8, 2023 | arxiv.org | Jiahui Yu

In this paper we construct explicit LPS-type Ramanujan graphs from each definite quaternion algebra over $\mathbb Q$ of class number 1, extending the constructions of Lubotzky, Phillips, Sarnak, and later Chiu, and answering in the affirmative a question raised by Jo and Yamasaki.