Lingwu Qian¹, Jianxiang Li², Qi Tang¹, Mengfei Liu¹, Bingjie Yuan¹, Guoli Ji^1,*

CMES-Computer Modeling in Engineering & Sciences, Vol.136, No.2, pp. 1441-1455, 2023, DOI:10.32604/cmes.2023.024534

Abstract In recent years, a number of wireless indoor positioning (WIP), such as Bluetooth, Wi-Fi, and Ultra-Wideband (UWB) technologies, are emerging. However, the indoor environment is complex and changeable. Walls, pillars, and even pedestrians may block wireless signals and produce non-line-of-sight (NLOS) deviations, resulting in decreased positioning accuracy and the inability to provide people with real-time continuous indoor positioning. This work proposed a strong tracking particle filter based on the chi-square test (SPFC) for indoor positioning. SPFC can fuse indoor wireless signals and the information of the inertial sensing unit (IMU) in the smartphone and detect the NLOS deviation through the… More >

Kristina K. Rauser‐Foltz¹, Lois J. Starr², Anji T. Yetman¹

Congenital Heart Disease, Vol.14, No.5, pp. 864-867, 2019, DOI:10.1111/chd.12824

Abstract Objectives: This study assessed the frequency and utility of echocardiographic examination in patients with all forms of Ehlers‐Danlos syndrome and sought to iden‐ tify clinical variables associated with an abnormal echocardiogram.
Design/setting: This was a retrospective study of all patients carrying a diagnosis of Ehlers‐Danlos syndrome of any type who were evaluated by a pediatrician or pediatric subspecialist at a single tertiary medical center with an affiliated children’s hospital during the period January 2013 to December 2018.
Patients: Chart review was performed on all patients carrying a diagnosis of Ehlers‐ Danlos syndrome in the electronic medical record.
Outcome Measures: Data… More >