Soil nonlinear behavior displays noticeable effects on the site seismic response.This study proposes a new functional expression of the skeleton curve to replace the hyperbolic skeleton curve.By integrating shear modu...Soil nonlinear behavior displays noticeable effects on the site seismic response.This study proposes a new functional expression of the skeleton curve to replace the hyperbolic skeleton curve.By integrating shear modulus and combining the dynamic skeleton curve and the damping degradation coefficient,the constitutive equation of the logarithmic dynamic skeleton can be obtained,which considers the damping effect in a soil dynamics problem.Based on the finite difference method and the multi-transmitting boundary condition,a 1D site seismic response analysis program called Soilresp1D has been developed herein and used to analyze the time-domain seismic response in three types of sites.At the same time,this study also provides numerical simulation results based on the hyperbolic constitutive model and the equivalent linear method.The results verify the rationality of the new soil dynamic constitutive model.It can analyze the mucky soil site nonlinear seismic response,reflecting the deformation characteristics and damping effect of the silty soil.The hysteresis loop area is more extensive,and the residual strain is evident.展开更多
The inflammatory response is an attempt by a host to protect itself against injurious stimuli and initiate the tissue healing process [1,2]. Although the production of both pro-and anti-inflammatory mediators which oc...The inflammatory response is an attempt by a host to protect itself against injurious stimuli and initiate the tissue healing process [1,2]. Although the production of both pro-and anti-inflammatory mediators which occurs mainly within tissues is a systemic process,展开更多
Focuses on a study that discusses the linear finite element approximations for the Timoshenko beam and the shallow arch problems with shear dampening and reduced integration. Information on the Timoshenko beam; Detail...Focuses on a study that discusses the linear finite element approximations for the Timoshenko beam and the shallow arch problems with shear dampening and reduced integration. Information on the Timoshenko beam; Details on the shallow arch problem; Factors that lead to the explicit formulation of the exact solution.展开更多
上个世纪90年代,科学家曾经猜测,在月球的背面可能存在着大量的冰态的水,这个猜想曾经一度点燃了人们的登月狂想,英语甚至造出了human col-onies on the Moon这样的表达!现在,进一步的探索dampened(本义:使潮湿;使沮丧)hopes of finding...上个世纪90年代,科学家曾经猜测,在月球的背面可能存在着大量的冰态的水,这个猜想曾经一度点燃了人们的登月狂想,英语甚至造出了human col-onies on the Moon这样的表达!现在,进一步的探索dampened(本义:使潮湿;使沮丧)hopes of finding Large amounts of water on the dark side of the Moon。此句中的动词就足以让我们玩味一番。展开更多
基金Major Program of the National Natural Science Foundation of China under Grant No.52192675 and the 111 Project of China under Grant No.D21001。
文摘Soil nonlinear behavior displays noticeable effects on the site seismic response.This study proposes a new functional expression of the skeleton curve to replace the hyperbolic skeleton curve.By integrating shear modulus and combining the dynamic skeleton curve and the damping degradation coefficient,the constitutive equation of the logarithmic dynamic skeleton can be obtained,which considers the damping effect in a soil dynamics problem.Based on the finite difference method and the multi-transmitting boundary condition,a 1D site seismic response analysis program called Soilresp1D has been developed herein and used to analyze the time-domain seismic response in three types of sites.At the same time,this study also provides numerical simulation results based on the hyperbolic constitutive model and the equivalent linear method.The results verify the rationality of the new soil dynamic constitutive model.It can analyze the mucky soil site nonlinear seismic response,reflecting the deformation characteristics and damping effect of the silty soil.The hysteresis loop area is more extensive,and the residual strain is evident.
基金supported by the National Basic Research Program of China (Grant Nos. 2006CB910901 and 2009CB522506)the Knowledge Innovative Program of the Chinese Academy of Sciences (Grant No. KSCX1-YW-10)
文摘The inflammatory response is an attempt by a host to protect itself against injurious stimuli and initiate the tissue healing process [1,2]. Although the production of both pro-and anti-inflammatory mediators which occurs mainly within tissues is a systemic process,
基金National Natural Science Foundation (Grand No. 10001029) of Chinaand in part by the Hong Kong RGC Grant.
文摘Focuses on a study that discusses the linear finite element approximations for the Timoshenko beam and the shallow arch problems with shear dampening and reduced integration. Information on the Timoshenko beam; Details on the shallow arch problem; Factors that lead to the explicit formulation of the exact solution.
文摘上个世纪90年代,科学家曾经猜测,在月球的背面可能存在着大量的冰态的水,这个猜想曾经一度点燃了人们的登月狂想,英语甚至造出了human col-onies on the Moon这样的表达!现在,进一步的探索dampened(本义:使潮湿;使沮丧)hopes of finding Large amounts of water on the dark side of the Moon。此句中的动词就足以让我们玩味一番。
