The general contracts of Fuqing and Fangjiashannuclear power projects affiliated to CNNC were signedon April 30th. It is the first time for CNNC to developnuclear power projects by EPC contracts includingdesign, purch...The general contracts of Fuqing and Fangjiashannuclear power projects affiliated to CNNC were signedon April 30th. It is the first time for CNNC to developnuclear power projects by EPC contracts includingdesign, purchasing and construction.Fuqing nuclear power project is located in展开更多
In this paper,the definition of the general L p-mixed projection bodies is introduced,and the general L p-projection bodies given by Ludwig is a special case for the general L p-mixed projection bodies.Then the Petty ...In this paper,the definition of the general L p-mixed projection bodies is introduced,and the general L p-projection bodies given by Ludwig is a special case for the general L p-mixed projection bodies.Then the Petty projection inequality for the general L p-mixed projection bodies is shown.Moreover,the monotonicity for the general L p-mixed projection bodies is obtained.展开更多
The stopping time of a one-dimensional bounded classical random walk（RW） is defined as the number of steps taken by a random walker to arrive at a fixed boundary for the first time.A quantum walk（QW） is a non-triv...The stopping time of a one-dimensional bounded classical random walk（RW） is defined as the number of steps taken by a random walker to arrive at a fixed boundary for the first time.A quantum walk（QW） is a non-trivial generalization of RW,and has attracted a great deal of interest from researchers working in quantum physics and quantum information.In this paper,we develop a method to calculate the stopping time for a one-dimensional QW.Using our method,we further compare the properties of stopping time for QW and RW.We find that the mean value of the stopping time is the same for both of these problems.However,for short times,the probability for a walker performing a QW to arrive at the boundary is larger than that for a RW.This means that,although the mean stopping time of a quantum and classical walker are the same,the quantum walker has a greater probability of arriving at the boundary earlier than the classical walker.展开更多
文摘The general contracts of Fuqing and Fangjiashannuclear power projects affiliated to CNNC were signedon April 30th. It is the first time for CNNC to developnuclear power projects by EPC contracts includingdesign, purchasing and construction.Fuqing nuclear power project is located in
文摘In this paper,the definition of the general L p-mixed projection bodies is introduced,and the general L p-projection bodies given by Ludwig is a special case for the general L p-mixed projection bodies.Then the Petty projection inequality for the general L p-mixed projection bodies is shown.Moreover,the monotonicity for the general L p-mixed projection bodies is obtained.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.11222430,11434011,and 11474049)the National Basic Research Program of China(Grant No.2012CB922104)+1 种基金the Fundamental Research Funds for the Central Universities,Chinathe Research Funds of Renmin University of China(Grant No.16XNLQ03)
文摘The stopping time of a one-dimensional bounded classical random walk（RW） is defined as the number of steps taken by a random walker to arrive at a fixed boundary for the first time.A quantum walk（QW） is a non-trivial generalization of RW,and has attracted a great deal of interest from researchers working in quantum physics and quantum information.In this paper,we develop a method to calculate the stopping time for a one-dimensional QW.Using our method,we further compare the properties of stopping time for QW and RW.We find that the mean value of the stopping time is the same for both of these problems.However,for short times,the probability for a walker performing a QW to arrive at the boundary is larger than that for a RW.This means that,although the mean stopping time of a quantum and classical walker are the same,the quantum walker has a greater probability of arriving at the boundary earlier than the classical walker.
