4篇
您的检索式：作者名="Dechun Liao"
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| 1 | Real-time rapid prediction of variations of Earth's rotational rate显示文摘Real-time rapid prediction of variations of the Earth's rotational rate is of great scientific and practical importance. However, due to the complicated time-variable characteristics of variations of the Earth's rotational rate (i.e., length of day, LOD), it is usually difficult to obtain satisfactory predictions by con-ventional linear time series analysis methods. This study employs the nonlinear artificial neural net-works (ANN) to predict the LOD variations. The topology of the ANN model is determined by minimizing the root mean square errors (RMSE) of the predictions. Considering the close relationships between the LOD variations and the atmospheric circulation movement, the operational prediction series of axial atmospheric angular momentum (AAM) is incorporated into the ANN model as an additional input in the real-time rapid prediction of LOD variations with 1-5 days ahead. The results show that the LOD pre-diction is significantly improved after introducing the operational prediction series of AAM into the ANN model. | WANG QiJie LIAO DeChun ZHOU YongHong | 2008 | Chinese Science Bulletin2008，53，7： | 8 |
| 2 | New evidence for possible impact of solar activity on long-term fluctuation of the earth rotation显示文摘The long-term fluctuation of the Schwabe period (LSP) of sunspots number (SSN) has been found to have high correlation with the variation of the length-of-day (LOD) in low frequency by using the data of smoothed monthly mean SSN during 1818-1999 and the method of wavelet transform. Analyses indicate that the maximum correlation coefficient between the series of LSP and LOD during 1892-1997 is about 0.9, with a time lag of about 5 years for the LOD related to the LSP. Though the maximum correlation coefficients between the LSP and the other two LOD series (1818-1997) reduce to about 0.4, they remain over the thresholds of 95% confidence level. This suggests new evidence for possible impact of solar activity on the long-term fluctuation of the earth rotation. | Dechun Liao Xinhao Liao | 2001 | Chinese Science Bulletin2001，46，11： | 4 |
| 3 | A programmed surface on polyetheretherketone for sequentially dictating osteoimmunomodulation and bone regeneration to achieve ameliorative osseointegration under osteoporotic conditions显示文摘Polyetheretherketone(PEEK)is a desirable alternative to conventional biomedical metals for orthopedic implants due to the excellent mechanical properties.However,the inherent bioinertness of PEEK contributes to inferior osseointegration of PEEK implants,especially under pathological conditions of osteoporosis.Herein,a programmed surface is designed and fabricated on PEEK to dictate osteoimmunomodulation and bone regeneration sequentially.A degradable hybrid coating consisting of poly(lactide-co-glycolide)and alendronate(ALN)loaded nano-hydroxyapatite is deposited on PEEK and then interleukin-4(IL-4)is grafted onto the outer surface of the hybrid coating with the aid of N_(2) plasma immersion ion implantation and subsequent immersion in IL-4 solution.Dominant release of IL-4 together with ALN and Ca^(2+) during the first few days synergistically mitigates the early acute inflammatory reactions and creates an osteoimmunomodulatory microenvironment that facilitates bone regeneration.Afterwards,slow and sustained delivery of ALN and Ca^(2+) in the following weeks boosts osteogenesis and suppresses osteoclastogenesis simultaneously,consequently ameliorating bone-implant osseointegration even under osteoporotic conditions.By taking into account the different phases in bone repair,this strategy of constructing advanced bone implants with sequential functions provides customizable and clinically viable therapy to osteoporotic patients. | Yanyan Zheng Ang Gao Jiaxiang Bai Qing Liao Yuzheng Wu Wei Zhang Min Guan Liping Tong Dechun Geng Xin Zhao Paul K.Chu Huaiyu Wang | 2022 | Bioactive Materials2022，7，8： | 2 |
| 4 | 显示文摘 | Ba Dechun Liao Guojin Wen Lishi | 2006 | Chinese Journal of Vacuum Science and Technology2006，26，5： | 1 |
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