Based on a generalized Langevin equation,we consider a full general relativistic model to describe the vertical oscillations of particles in accretion disks around compact astrophysical objects,and calculate oscillati...Based on a generalized Langevin equation,we consider a full general relativistic model to describe the vertical oscillations of particles in accretion disks around compact astrophysical objects,and calculate oscillating lumi-nosity and power spectral density(PSD)of an accretion disk.The influences of the friction parameter𝜂,spin parameter𝑏α,and mass𝑁of the center compact object on the stochastic resonance(SR)in PSD curves are discussed.The results show that a large spin parameter𝑏α,can enhance the SR phenomenon,but the larger the𝜂ζor M𝑁is,the weaker the SR phenomenon becomes.In addition,our simulated PSD curves of the output luminosity of stochastically oscillating disk have the same profile as the observed PSD of x-ray binaries,and the resonance peak in the PSD curve can interpret the quasi-periodic oscillations at the same time.展开更多
Wavelength and bandwidth allocation is important for multicast communication in optical networks. In this paper,a new method based on scheduling theory is proposed. The proposed method formulates wavelength bandwidth ...Wavelength and bandwidth allocation is important for multicast communication in optical networks. In this paper,a new method based on scheduling theory is proposed. The proposed method formulates wavelength bandwidth capacity as a large rectangle and these multicast stream bandwidth requirements as small rectangles. It treats the wavelength and bandwidth allocation question as a rectangle packing problem. The proposed algorithm solves the problem by taking quasi-human strategy with Euclidian distance. It is an effective heuristic algorithm to quickly solve multicast stream bandwidth allocation problem in optical networks by theoretic analysis. Further simulation experiments show the bandwidth allocation algorithm can increase network utilization and have a good fairness performance for unicast stream and multicast stream in optical networks. The results indicate the effectiveness of the algorithm.展开更多
Lower limb osteoarthritis(OA)is a chronic,multifactorial disease characterized by impaired physical function,chronic pain,compromised psychological health and decreased social functioning.Chronic inflammation plays a ...Lower limb osteoarthritis(OA)is a chronic,multifactorial disease characterized by impaired physical function,chronic pain,compromised psychological health and decreased social functioning.Chronic inflammation plays a critical role in the pathophysiology of OA.Tai Chi is a type of classical mind-body exercise derived from ancient Chinese martial arts.Evidence supports that Tai Chi has significant benefits for relieving lower limb OA symptoms.Using a biopsychosocial framework,this review aims to elucidate the beneficial effects of Tai Chi in lower limb OA and disentangle its potential mechanisms from the perspective of biology,psychology,and social factors.Complex biomechanical,biochemical,neurological,psychological,and social mechanisms,including strengthening of muscles,proprioception improvement,joint mechanical stress reduction,change of brain activation and sensitization,attenuation of inflammation,emotion modulation and social support,are discussed.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 11045004the Research Foundation of Hubei Provincial Department of Education under Grant No D20132603the Fundamental Research Foundation of Hubei University of Arts and Science under Grant No 2010YA017.
文摘Based on a generalized Langevin equation,we consider a full general relativistic model to describe the vertical oscillations of particles in accretion disks around compact astrophysical objects,and calculate oscillating lumi-nosity and power spectral density(PSD)of an accretion disk.The influences of the friction parameter𝜂,spin parameter𝑏α,and mass𝑁of the center compact object on the stochastic resonance(SR)in PSD curves are discussed.The results show that a large spin parameter𝑏α,can enhance the SR phenomenon,but the larger the𝜂ζor M𝑁is,the weaker the SR phenomenon becomes.In addition,our simulated PSD curves of the output luminosity of stochastically oscillating disk have the same profile as the observed PSD of x-ray binaries,and the resonance peak in the PSD curve can interpret the quasi-periodic oscillations at the same time.
基金Funded by the Project "Research on Key Technology and System of next Generation Optical Access" of Open Foundation of State Key Laboratory of Optical Communication Technologies and Networks,Wuhan Research Institute of Posts&Telecommunications(No.2010OCTN-03)
文摘Wavelength and bandwidth allocation is important for multicast communication in optical networks. In this paper,a new method based on scheduling theory is proposed. The proposed method formulates wavelength bandwidth capacity as a large rectangle and these multicast stream bandwidth requirements as small rectangles. It treats the wavelength and bandwidth allocation question as a rectangle packing problem. The proposed algorithm solves the problem by taking quasi-human strategy with Euclidian distance. It is an effective heuristic algorithm to quickly solve multicast stream bandwidth allocation problem in optical networks by theoretic analysis. Further simulation experiments show the bandwidth allocation algorithm can increase network utilization and have a good fairness performance for unicast stream and multicast stream in optical networks. The results indicate the effectiveness of the algorithm.
基金supported by the National Natural Science Foundation of China (32371185)Research and Innovation Grant for Graduate Students,Shanghai University of Sport (No.YJSCX-2023-018)+4 种基金Shanghai Science and Technology Plan Project (No.23010504200)Shuguang Program of Shanghai Education Development Foundation and Shanghai Municipal Education Commission(No.20SG50)Shanghai Talent Development Fund (No.2020125)Key Lab of Exercise and Health Sciences of Ministry of Education(Shanghai University of Sport)(No.2022KF001)Shanghai Key Lab of Human Performance (Shanghai University of Sport)(No.11DZ2261100)。
基金supported by grants from the National Natural Science Foundation of China (No. 31271273, 31300975)Shanghai Natural Science Foundation (No. 18ZR1437100)Shanghai Key Laboratory of Human Movement Development and Protection (Shanghai University of Sport) (No. 11DZ2261100)
基金Supported by Shanghai Key Lab of Human Performance(No.11DZ2261100)"Shuguang Program"(20SG50)funded by Shanghai Education Development Foundation and Shanghai Municipale Education Commission。
文摘Lower limb osteoarthritis(OA)is a chronic,multifactorial disease characterized by impaired physical function,chronic pain,compromised psychological health and decreased social functioning.Chronic inflammation plays a critical role in the pathophysiology of OA.Tai Chi is a type of classical mind-body exercise derived from ancient Chinese martial arts.Evidence supports that Tai Chi has significant benefits for relieving lower limb OA symptoms.Using a biopsychosocial framework,this review aims to elucidate the beneficial effects of Tai Chi in lower limb OA and disentangle its potential mechanisms from the perspective of biology,psychology,and social factors.Complex biomechanical,biochemical,neurological,psychological,and social mechanisms,including strengthening of muscles,proprioception improvement,joint mechanical stress reduction,change of brain activation and sensitization,attenuation of inflammation,emotion modulation and social support,are discussed.
