In this paper the problem of inequality in solid mechanics, the contents of which consist of some main concepts, methods and results of the stationary and evolutionary as well as determinate and random problems in var...In this paper the problem of inequality in solid mechanics, the contents of which consist of some main concepts, methods and results of the stationary and evolutionary as well as determinate and random problems in variational principle and variational ine -quality, is studied in detail.展开更多
In the usual treatment of plane deformation problems in plasticity,the assumption ofstatic determinacy is frequently made,with the advantage of obtaining stress distributionswithout reference to stress-strain relation...In the usual treatment of plane deformation problems in plasticity,the assumption ofstatic determinacy is frequently made,with the advantage of obtaining stress distributionswithout reference to stress-strain relations.In the present paper,we consider the problemof axial-symmetric defomation,where this advantage is no longer existing.The materialis assumed to be incompressible and entirely in a plastic state.The equations of展开更多
A solution to the problem on diffusion of catalytic agents released from an airplane is sought.The variation of falling velocities of agent particles with the altitudes is taken into account in the study of the proble...A solution to the problem on diffusion of catalytic agents released from an airplane is sought.The variation of falling velocities of agent particles with the altitudes is taken into account in the study of the problem.A comparison is also made between the calculated results obtained by using the finite-difference method and those by using the analytic method,the similarities and the differences between the two methods are revealed.展开更多
Picture this-you’re in Shanghai,sitting in a hotel room, with five different maps of the city sprawled on the bed before you,and you’re trying to logistically plan a day in this grand city.
A new book calls attention to problems confronting Chinese boys Pony,a 10-month-old boy, lost his first confrontation in life to a girl of the same age. The two babies’
Chinese modernization is socialist modernization with Chinese characteristics under the leadership of the Communist Party of China,and it is the contemporary form of Chinese socialist modernization under the grand his...Chinese modernization is socialist modernization with Chinese characteristics under the leadership of the Communist Party of China,and it is the contemporary form of Chinese socialist modernization under the grand historical vision,which has considerable research value.This paper mainly combines the theoretical vision with the historical vision,studies and discusses the origin of Chinese modernization,from China’s“Oriental society,”a modern prehistoric social form,to modern China stepping on the socialist road under the basic circumstances of world history,and takes the initiative to master the relevant logic of the historical trend.This paper also presents the research and discussion on why it is possible for modern China to realize Chinese modernization,and to solve the problem of the origin of Chinese modernization in theory and historical logic.展开更多
The novel I Love Dick,written by Chris Kraus,discusses the“least described”social problem.The novel starts with describing Chris’s love affair.Her love affair is narrated with her illustrations of some social probl...The novel I Love Dick,written by Chris Kraus,discusses the“least described”social problem.The novel starts with describing Chris’s love affair.Her love affair is narrated with her illustrations of some social problems that are shrunk into personal problems.This article aims to examine how she uses the schizophrenic utterances to illustrate the failure of her love affair differently.展开更多
In this paper attempts are made at answering the problems on the statistical properties of activity flow time in PERT raised by the late famous mathematician Hua Loo-keng.
This article deals with the Riemann-Hilbert boundary value problem for quasilinear mixed （elliptic- hyperbolic） complex equations of first order with degenerate rank 0. Firstly, we give the representation theorem an...This article deals with the Riemann-Hilbert boundary value problem for quasilinear mixed （elliptic- hyperbolic） complex equations of first order with degenerate rank 0. Firstly, we give the representation theorem and prove the uniqueness of solutions for the boundary value problem. Afterwards, by using the method of successive iteration, the existence and estimates of solutions for the boundary value problem are verified. The above problem possesses the important applications to the Tricomi problem of mixed type equations of second order. In this article, the proof of HSlder continuity of a singular double integer is very difficult and interesting as in this Section 4 below.展开更多
文摘In this paper the problem of inequality in solid mechanics, the contents of which consist of some main concepts, methods and results of the stationary and evolutionary as well as determinate and random problems in variational principle and variational ine -quality, is studied in detail.
文摘In the usual treatment of plane deformation problems in plasticity,the assumption ofstatic determinacy is frequently made,with the advantage of obtaining stress distributionswithout reference to stress-strain relations.In the present paper,we consider the problemof axial-symmetric defomation,where this advantage is no longer existing.The materialis assumed to be incompressible and entirely in a plastic state.The equations of
文摘A solution to the problem on diffusion of catalytic agents released from an airplane is sought.The variation of falling velocities of agent particles with the altitudes is taken into account in the study of the problem.A comparison is also made between the calculated results obtained by using the finite-difference method and those by using the analytic method,the similarities and the differences between the two methods are revealed.
文摘Picture this-you’re in Shanghai,sitting in a hotel room, with five different maps of the city sprawled on the bed before you,and you’re trying to logistically plan a day in this grand city.
文摘A new book calls attention to problems confronting Chinese boys Pony,a 10-month-old boy, lost his first confrontation in life to a girl of the same age. The two babies’
文摘Chinese modernization is socialist modernization with Chinese characteristics under the leadership of the Communist Party of China,and it is the contemporary form of Chinese socialist modernization under the grand historical vision,which has considerable research value.This paper mainly combines the theoretical vision with the historical vision,studies and discusses the origin of Chinese modernization,from China’s“Oriental society,”a modern prehistoric social form,to modern China stepping on the socialist road under the basic circumstances of world history,and takes the initiative to master the relevant logic of the historical trend.This paper also presents the research and discussion on why it is possible for modern China to realize Chinese modernization,and to solve the problem of the origin of Chinese modernization in theory and historical logic.
文摘The novel I Love Dick,written by Chris Kraus,discusses the“least described”social problem.The novel starts with describing Chris’s love affair.Her love affair is narrated with her illustrations of some social problems that are shrunk into personal problems.This article aims to examine how she uses the schizophrenic utterances to illustrate the failure of her love affair differently.
基金the Special Funds for Major State Basic Research Projects(G1 9990 3 2 8)and Zhejiang Provincial Natural Science Foundation of China(1 0 0 0 0 2 )
文摘In this paper attempts are made at answering the problems on the statistical properties of activity flow time in PERT raised by the late famous mathematician Hua Loo-keng.
基金Supported in part by the National Natural Science Foundation of China under Grant No.11021161 and 10928102973 Program of China under Grant No.2011CB80800+2 种基金Chinese Academy of Sciences under Grant No.kjcx-yw-s7project grant of "Center for Research and Applications in Plasma Physics and Pulsed Power Technology,PBCT-Chile-ACT 26"Direcci'on de Programas de Investigaci'on,Universidad de Talca,Chile
文摘This article deals with the Riemann-Hilbert boundary value problem for quasilinear mixed （elliptic- hyperbolic） complex equations of first order with degenerate rank 0. Firstly, we give the representation theorem and prove the uniqueness of solutions for the boundary value problem. Afterwards, by using the method of successive iteration, the existence and estimates of solutions for the boundary value problem are verified. The above problem possesses the important applications to the Tricomi problem of mixed type equations of second order. In this article, the proof of HSlder continuity of a singular double integer is very difficult and interesting as in this Section 4 below.
