Zobrazeno 1 - 10
of 356
pro vyhledávání: '"Tongxing Li"'
Publikováno v:
Applied Mathematics in Science and Engineering, Vol 31, Iss 1 (2023)
We present two sufficient conditions for the oscillatory behaviour of a class of noncanonical fourth-order dynamic equations on arbitrary time scales. An illustrative example is included to show that new criteria improve related results reported in t
Externí odkaz:
https://doaj.org/article/a5d8b9db721b41efb134d77fea98c90c
Autor:
Wei Hu, Jiadong Chu, Xuanli Chen, Siyuan Liu, Na Sun, Qiang Han, Tongxing Li, Zhaolong Feng, Qida He, Yueping Shen
Publikováno v:
BMC Geriatrics, Vol 22, Iss 1, Pp 1-13 (2022)
Abstract Background Although studies have shown that sleep quality (duration) is associated with health-related quality of life (HRQoL), most of these studies have been small-sized and targeted at young and middle-aged adults. In addition, few studie
Externí odkaz:
https://doaj.org/article/13a4e28973294949afd09592505d0afe
Autor:
Tongxing Li, Wei Hu, Liang Zhou, Liuming Peng, Lei Cao, Zhaolong Feng, Qida He, Jiadong Chu, Xuanli Chen, Siyuan Liu, Qiang Han, Na Sun, Yueping Shen
Publikováno v:
Frontiers in Psychology, Vol 13 (2022)
ObjectivesTo investigate the relationship between multimorbidity and health-related quality of life (HRQoL), and explore the effects of functional status and cognitive function on Chinses elderly behind this relationship.MethodsThe Multivariate logis
Externí odkaz:
https://doaj.org/article/2b0170750a244bebb79ba0b7ae657bf0
Autor:
Ying Wu, Wei Hu, Chaofu Ke, Na Sun, Liang Zhou, Yueping Shen, Yanan Qiao, Siyuan Liu, Lei Cao, Dingliu He, Shuting Xiong, Liuming Peng, Qiang Han, Jiadong Chu, Xuanli Chen, Tongxing Li, Zhaolong Feng, Qida He
Publikováno v:
BMJ Open, Vol 12, Iss 7 (2022)
Purpose The Liyang cohort study on chronic diseases and risk factors monitoring in China (Liyang Study) is a prospective population-based study which aims to investigate and identify the determinants of the most prevalent chronic non-communicable dis
Externí odkaz:
https://doaj.org/article/9e5674dfaf8c477eb7762626e491681f
Publikováno v:
Advances in Difference Equations, Vol 2020, Iss 1, Pp 1-16 (2020)
Abstract We investigate the existence of different types of nonoscillatory solutions to a class of higher-order nonlinear neutral dynamic equations on a time scale. Two examples are provided to show the significance of the conclusions.
Externí odkaz:
https://doaj.org/article/5caf83199d7147b784769762fd6d8b5c
Publikováno v:
Advances in Difference Equations, Vol 2020, Iss 1, Pp 1-14 (2020)
Abstract We investigate non-Gaussian noise second-order filtering and fixed-order smoothing problems for non-Gaussian stochastic discrete systems with packet dropouts. We present a novel Kalman-like nonlinear non-Gaussian noise estimation approach ba
Externí odkaz:
https://doaj.org/article/bc72ab9a7d624c84815dac2f5ac9035d
Publikováno v:
Advances in Difference Equations, Vol 2020, Iss 1, Pp 1-19 (2020)
Abstract We consider the corrosion detection problem in terms of the Laplace equation and study a simply connected bounded domain with Wentzell-type GIBC boundary condition. We derive the systems of integral equations and establish the equivalence to
Externí odkaz:
https://doaj.org/article/389fe926d05e4b3e878ae67aa881548f
Publikováno v:
Advances in Difference Equations, Vol 2020, Iss 1, Pp 1-9 (2020)
Abstract We study the existence of nonoscillatory solutions tending to zero of a class of third-order nonlinear neutral dynamic equations on time scales by employing Krasnoselskii’s fixed point theorem. Two examples are given to illustrate the sign
Externí odkaz:
https://doaj.org/article/e65d542cd4664629a4589335f154165f
Publikováno v:
Advances in Difference Equations, Vol 2019, Iss 1, Pp 1-16 (2019)
Abstract This paper is concerned with the convergence of solutions for a class of functional integro-differential equations with nonlinear boundary conditions. New comparison principles are obtained. By using the comparison principles and quasilinear
Externí odkaz:
https://doaj.org/article/52b5ae02a08e4ec290cb53d92f59c510
Publikováno v:
Advances in Difference Equations, Vol 2019, Iss 1, Pp 1-16 (2019)
Abstract This paper discusses the synchronization problem of N-coupled fractional-order chaotic systems with ring connection via bidirectional coupling. On the basis of the direct design method, we design the appropriate controllers to transform the
Externí odkaz:
https://doaj.org/article/317c986e1840434eb7e159b52c5a788c