Výsledky vyhledávání - "Naiquan Zheng"

Akademický článek

Hourly Sea Level Prediction‐Based GNSS‐IR Inversions by Combining the Least Squares Learning Cross‐Checking Method With the Gaussian Kernel Model L2 Constraint and LSTM

Autor: Naiquan Zheng, Hongzhou Chai, Yongchao Ma, Lingqiu Chen, Min Wang, Tengfei Bai

Publikováno v: Earth and Space Science, Vol 10, Iss 3, Pp n/a-n/a (2023)

Abstract Multisatellite systems and multi‐signal‐to‐noise ratio types provide a more prosperous data basis for the inversion of sea level by GNSS‐IR technology. However, there are few studies on data reconstruction of the retrieved sea level

Externí odkaz: https://doaj.org/article/cf6affcfd5a84b1c801bcd70a76cd4e6

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Akademický článek

Patellofemoral Joint Loading During the Performance of the Forward and Side Lunge with Step Height Variations

Autor: Rafael Escamilla, Naiquan Zheng, Toran D MacLeod, Rodney Imamura, Kevin E. Wilk, Shangcheng Wang, Irv Rubenstein, Kyle Yamashiro, Glenn S. Fleisig

Publikováno v: International Journal of Sports Physical Therapy, Vol 17, Iss 2 (2022)

# Background Forward and side lunge exercises strengthen hip and thigh musculature, enhance patellofemoral joint stability, and are commonly used during patellofemoral rehabilitation and training for sport. # Hypothesis/Purpose The purpose was to

Externí odkaz: https://doaj.org/article/e224233fc2cf49278c098a8b6a8b7066

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Akademický článek

A New Global Tropospheric Delay Model Considering the Spatiotemporal Variation Characteristics of ZTD With Altitude Coefficient

Autor: Peng Chen, Yongchao Ma, Hang Liu, Naiquan Zheng

Publikováno v: Earth and Space Science, Vol 7, Iss 4, Pp n/a-n/a (2020)

Abstract Tropospheric delay error is independent of the signal's frequency and has strong spatiotemporal variation. It is one of the most severe error sources of satellite navigation and spatial measurement. In view of the limitation of global zenith

Externí odkaz: https://doaj.org/article/309cae9da6c7472899575ead4a157c58

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