For a finite abelian tame extension L/Fq(T), we will determine its genus field and conductor in this paper, and prove the existence theorems of the relative integral bases for L over any of its subfields.
In this paper,we point out that for a static system the eigenvalue integral relation(iσ)~2I +iσΦ+Σ=0 derived from an eigenequation (?)Ψ=[(iσ)~2(?)_2+(iσ)(?)_1+(?)_0]Ψ(r)=0 only gives the suffi- ciency of condi...In this paper,we point out that for a static system the eigenvalue integral relation(iσ)~2I +iσΦ+Σ=0 derived from an eigenequation (?)Ψ=[(iσ)~2(?)_2+(iσ)(?)_1+(?)_0]Ψ(r)=0 only gives the suffi- ciency of condition Σ>0 for the stability of a certain mode,but it can not provide the necessity to the condition in general.Three theorems presented in this paper show that under some conditions, Σ>0 makes the mode stable,while Σ<0 makes the mode unstable.展开更多
In this paper.the boundary value problems of plane problems with a simply-ormultiply-connected domain for isotropic linear visca-elosticity are first established byterms of Airy stress function F(Xu t). Secondly some ...In this paper.the boundary value problems of plane problems with a simply-ormultiply-connected domain for isotropic linear visca-elosticity are first established byterms of Airy stress function F(Xu t). Secondly some identity relations betweendisplacements and stresses for plane problems of sisco-and elasticity are discussed indetait and some meaningful conclusions are obtained As an example the deformationresponse for viscoelastic plate with a small circular hote at the center is analyzed undera uniasial uniform extension.展开更多
Current Situation and Problems of the Treatment in Advanced Prostate Cancer In recent years,the incidence of prostate cancer shows a rising trend in China with an increase of 70%and has been the first place in the gro...Current Situation and Problems of the Treatment in Advanced Prostate Cancer In recent years,the incidence of prostate cancer shows a rising trend in China with an increase of 70%and has been the first place in the growth rate of malignant tumor in the male reproductive system. Prostate cancer has become a serious threat to male senior’s health.Because of the application of展开更多
The aim of the Northeast Asian community building is to create an environment for living together peacefully and for realizing prosperity through cooperation. Economically, a community will integrate regional economie...The aim of the Northeast Asian community building is to create an environment for living together peacefully and for realizing prosperity through cooperation. Economically, a community will integrate regional economies and share great interests for common prosperity. Politically, a community will stabilize the region with trust and cooperation. In terms of security, a community will realize the lasting peace of the region. The three economies of China, Japan, and the ROK account for a vast majority of Northeast Asia＇s regional economy. China and the ROK are two key players in the Northeast Asian community building. China-ROK cooperation will be helpful for China-Japan relations that now appear to be in a difficult situation. Northeast Asian economic cooperation has developed into a multi-layered structure both in institutional and non-institutional ways. In order to build the Northeast Asian community, those three countries must first improve and make three close bilateral relationships. However, Northeast Asian community building should not just include China, Japan, and the ROK. The DPRK, Mongolia, and also Russia should be engaged as early as possible. Northeast Asian community is a vision and also a dream that needs great efforts to be realized by both a good spirit and real actions.展开更多
文摘For a finite abelian tame extension L/Fq(T), we will determine its genus field and conductor in this paper, and prove the existence theorems of the relative integral bases for L over any of its subfields.
基金The project supported by the National Natural Science Foundation of China.
文摘In this paper,we point out that for a static system the eigenvalue integral relation(iσ)~2I +iσΦ+Σ=0 derived from an eigenequation (?)Ψ=[(iσ)~2(?)_2+(iσ)(?)_1+(?)_0]Ψ(r)=0 only gives the suffi- ciency of condition Σ>0 for the stability of a certain mode,but it can not provide the necessity to the condition in general.Three theorems presented in this paper show that under some conditions, Σ>0 makes the mode stable,while Σ<0 makes the mode unstable.
文摘In this paper.the boundary value problems of plane problems with a simply-ormultiply-connected domain for isotropic linear visca-elosticity are first established byterms of Airy stress function F(Xu t). Secondly some identity relations betweendisplacements and stresses for plane problems of sisco-and elasticity are discussed indetait and some meaningful conclusions are obtained As an example the deformationresponse for viscoelastic plate with a small circular hote at the center is analyzed undera uniasial uniform extension.
基金Supported by the National Natural Science Foundation of China(No.30873268)
文摘Current Situation and Problems of the Treatment in Advanced Prostate Cancer In recent years,the incidence of prostate cancer shows a rising trend in China with an increase of 70%and has been the first place in the growth rate of malignant tumor in the male reproductive system. Prostate cancer has become a serious threat to male senior’s health.Because of the application of
文摘The aim of the Northeast Asian community building is to create an environment for living together peacefully and for realizing prosperity through cooperation. Economically, a community will integrate regional economies and share great interests for common prosperity. Politically, a community will stabilize the region with trust and cooperation. In terms of security, a community will realize the lasting peace of the region. The three economies of China, Japan, and the ROK account for a vast majority of Northeast Asia＇s regional economy. China and the ROK are two key players in the Northeast Asian community building. China-ROK cooperation will be helpful for China-Japan relations that now appear to be in a difficult situation. Northeast Asian economic cooperation has developed into a multi-layered structure both in institutional and non-institutional ways. In order to build the Northeast Asian community, those three countries must first improve and make three close bilateral relationships. However, Northeast Asian community building should not just include China, Japan, and the ROK. The DPRK, Mongolia, and also Russia should be engaged as early as possible. Northeast Asian community is a vision and also a dream that needs great efforts to be realized by both a good spirit and real actions.
