Image method is used in this paper to calculate the value of magnetic field near high-voltage transmission lines and electric railways. Areas in which the magnetic field is less than 0.002 Gauss are given and the magn...Image method is used in this paper to calculate the value of magnetic field near high-voltage transmission lines and electric railways. Areas in which the magnetic field is less than 0.002 Gauss are given and the magnetic pollution of high-voltage power transmission lines and electric railways is discussed展开更多
This article describes the present situation of Access Networks( AN ), enumerates a few problems in the development of AN , and brings forward an optimizing solution to AN ; then describes its architecture, in...This article describes the present situation of Access Networks( AN ), enumerates a few problems in the development of AN , and brings forward an optimizing solution to AN ; then describes its architecture, indicates the applied the characteristics and prospect of the concentrated monitoring and managing systems in the AN based on the CORBA architecture.展开更多
The combined effects of chromatic dispersion, self-phase modulation and laser chirp are numericallyinvestigated for a 10 Gb/s IM-DD system over 100 km of standard single-mode (SSM)fiber. Pre-compensation and
Skeleton is an important topological descriptor of an image and is widely used in the fields of image analysis. In this paper we present an algorithm based on morphological operations for extracting skeleton from a bi...Skeleton is an important topological descriptor of an image and is widely used in the fields of image analysis. In this paper we present an algorithm based on morphological operations for extracting skeleton from a binary image. Since the original image can be partially or completely reconstructed from the skeleton, this algorithm which works in both analogUe and digital space is useful in image coding and feature description. A fast algorithm for skeletonizing and reconstrUcting digital images and the results of the fast algorithm are also given.展开更多
Three user authentication schemes are proposed. The security of these new schemes is due to the used secure hash functions and the physically secure smart cards.
文摘Image method is used in this paper to calculate the value of magnetic field near high-voltage transmission lines and electric railways. Areas in which the magnetic field is less than 0.002 Gauss are given and the magnetic pollution of high-voltage power transmission lines and electric railways is discussed
文摘This article describes the present situation of Access Networks( AN ), enumerates a few problems in the development of AN , and brings forward an optimizing solution to AN ; then describes its architecture, indicates the applied the characteristics and prospect of the concentrated monitoring and managing systems in the AN based on the CORBA architecture.
文摘The combined effects of chromatic dispersion, self-phase modulation and laser chirp are numericallyinvestigated for a 10 Gb/s IM-DD system over 100 km of standard single-mode (SSM)fiber. Pre-compensation and
文摘Skeleton is an important topological descriptor of an image and is widely used in the fields of image analysis. In this paper we present an algorithm based on morphological operations for extracting skeleton from a binary image. Since the original image can be partially or completely reconstructed from the skeleton, this algorithm which works in both analogUe and digital space is useful in image coding and feature description. A fast algorithm for skeletonizing and reconstrUcting digital images and the results of the fast algorithm are also given.
文摘Three user authentication schemes are proposed. The security of these new schemes is due to the used secure hash functions and the physically secure smart cards.
