Based on a rolling model, the simulation of strip thickness during cold continuous rolling was made on the platform software Matrix. The simulation system combined the discrete system with continuous system for high s...Based on a rolling model, the simulation of strip thickness during cold continuous rolling was made on the platform software Matrix. The simulation system combined the discrete system with continuous system for high speed and dynamics. Simulation parameters were calculated by differential element method, and the simulation results fit in with practical data very well.展开更多
The characteristics of some elements in inoculant were analyzed. The effect of the morphology of instantaneous inoculant on its melting velocity was studied. When the inoculants pass through the same sieve number, the...The characteristics of some elements in inoculant were analyzed. The effect of the morphology of instantaneous inoculant on its melting velocity was studied. When the inoculants pass through the same sieve number, the volume and the ratio of surface area to volume are different. It is evident from the theoretical analysis and experiment under some conditions that the melting velocity of inoculant depends on the morphology of inoculant. The morphology of inoculant during production should be controlled carefully.展开更多
We construct four linear composite operators for a two-particle system and give common eigenvectors of those operators. The technique of integration within an ordered product of operators is employed to prove that tho...We construct four linear composite operators for a two-particle system and give common eigenvectors of those operators. The technique of integration within an ordered product of operators is employed to prove that those common eigenvectors are complete and orthonormal. Therefore, a new intermediate coordinate-momentum representation for a two-particle system is proposed and applied to some two-body dynamic problems.展开更多
The coherent-intermediate-entangled state ｜α, x）λ,v is proposed in the two-mode Fock Space, which exhibits both the properties of the coherent and entangled states. The ｜α, x）λ,v makes up a new quantum mechan...The coherent-intermediate-entangled state ｜α, x）λ,v is proposed in the two-mode Fock Space, which exhibits both the properties of the coherent and entangled states. The ｜α, x）λ,v makes up a new quantum mechanical representation, and the completeness relation of ｜α, x）λ,v is proved by virtue of the technique of integral within an ordered product of operators. The corresponding squeezing operators are derived. Furthermore, Generalized P-representation is constructed in the coherent-intermediate-entangled state ｜α, x）λ,v and the Schmidt decomposition of ｜α, x）λ,v is investigated.展开更多
为了评估话音通信系统的性能,通常需要把输出语音信号进行时间规整,然后才能比较输入语音信号与输出语音信号的相似度。传统的语音信号时间规整算法适应性差,当环境噪声增大时,时间规整误差会导致系统性能急剧下降。因此,提出了一种基...为了评估话音通信系统的性能,通常需要把输出语音信号进行时间规整,然后才能比较输入语音信号与输出语音信号的相似度。传统的语音信号时间规整算法适应性差,当环境噪声增大时,时间规整误差会导致系统性能急剧下降。因此,提出了一种基于定位标签的时间规整算法,大大提高了低信噪比语音信号的时间规整精度。实验仿真及工程实践表明,当信噪比为-20 d B时,提出的算法仍能达到非常高的估计精度,远远超过传统方法的时延估计精度,具有很强的抗干扰能力。展开更多
文摘Based on a rolling model, the simulation of strip thickness during cold continuous rolling was made on the platform software Matrix. The simulation system combined the discrete system with continuous system for high speed and dynamics. Simulation parameters were calculated by differential element method, and the simulation results fit in with practical data very well.
文摘The characteristics of some elements in inoculant were analyzed. The effect of the morphology of instantaneous inoculant on its melting velocity was studied. When the inoculants pass through the same sieve number, the volume and the ratio of surface area to volume are different. It is evident from the theoretical analysis and experiment under some conditions that the melting velocity of inoculant depends on the morphology of inoculant. The morphology of inoculant during production should be controlled carefully.
基金supported by the Natural Science Foundation of Heze Universityof Shandong Province of China under Grant Nos.XY07WL01 and XY08WL03the University Experimental Technology Foundation of Shandong Province under Grant No.S04W138+1 种基金the Natural Science Foundation of Shandong Province under Grant No.Y2008A16the National Natural Science Foundation of China under Grant No.10574060
文摘We construct four linear composite operators for a two-particle system and give common eigenvectors of those operators. The technique of integration within an ordered product of operators is employed to prove that those common eigenvectors are complete and orthonormal. Therefore, a new intermediate coordinate-momentum representation for a two-particle system is proposed and applied to some two-body dynamic problems.
基金Supported by the Natural Science Foundation of Heze University of Shandong Province under Grant No.XY07WL01the University Experimental Technology Foundation of Shandong Province under Grant No.S04W138the Natural Science Foundation of Shandong Province of China under Grant No.Y2008A16
文摘The coherent-intermediate-entangled state ｜α, x）λ,v is proposed in the two-mode Fock Space, which exhibits both the properties of the coherent and entangled states. The ｜α, x）λ,v makes up a new quantum mechanical representation, and the completeness relation of ｜α, x）λ,v is proved by virtue of the technique of integral within an ordered product of operators. The corresponding squeezing operators are derived. Furthermore, Generalized P-representation is constructed in the coherent-intermediate-entangled state ｜α, x）λ,v and the Schmidt decomposition of ｜α, x）λ,v is investigated.
文摘为了评估话音通信系统的性能,通常需要把输出语音信号进行时间规整,然后才能比较输入语音信号与输出语音信号的相似度。传统的语音信号时间规整算法适应性差,当环境噪声增大时,时间规整误差会导致系统性能急剧下降。因此,提出了一种基于定位标签的时间规整算法,大大提高了低信噪比语音信号的时间规整精度。实验仿真及工程实践表明,当信噪比为-20 d B时,提出的算法仍能达到非常高的估计精度,远远超过传统方法的时延估计精度,具有很强的抗干扰能力。
