In the 1930s and 1940s,Thomas Chao,an internationally-renowned Chinese journalist,influenced Chinese journalists’way of covering and writing news with his own prominent experience in international news reporting.Base...In the 1930s and 1940s,Thomas Chao,an internationally-renowned Chinese journalist,influenced Chinese journalists’way of covering and writing news with his own prominent experience in international news reporting.Based on his long-term news practice,Chao analyzed the differences between Chinese and Western press and explored the way for improvement.He called on the government to set up a national news agency so as to establish itself in the field of international communication,and helped the Central News Agency to take back Reuters’right to publish in China.Chao also actively promoted the exchange and cooperation between Chinese newspapers and news agencies and foreign press in international communication activities,striving to increase China’s voice worldwide.展开更多
In this work, the three dimensional Poisson’s equation in Cartesian coordinates with the Dirichlet’s boundary conditions in a cube is solved directly, by extending the method of Hockney. The Poisson equation is appr...In this work, the three dimensional Poisson’s equation in Cartesian coordinates with the Dirichlet’s boundary conditions in a cube is solved directly, by extending the method of Hockney. The Poisson equation is approximated by 19-points and 27-points fourth order finite difference approximation schemes and the resulting large algebraic system of linear equations is treated systematically in order to get a block tri-diagonal system. The efficiency of this method is tested for some Poisson’s equations with known analytical solutions and the numerical results obtained show that the method produces accurate results. It is shown that 19-point formula produces comparable results with 27-point formula, though computational efforts are more in 27-point formula.展开更多
In this work, the three-dimensional Poisson’s equation in cylindrical coordinates system with the Dirichlet’s boundary conditions in a portion of a cylinder for is solved directly, by extending the method of Hockney...In this work, the three-dimensional Poisson’s equation in cylindrical coordinates system with the Dirichlet’s boundary conditions in a portion of a cylinder for is solved directly, by extending the method of Hockney. The Poisson equation is approximated by second-order finite differences and the resulting large algebraic system of linear equations is treated systematically in order to get a block tri-diagonal system. The accuracy of this method is tested for some Poisson’s equations with known analytical solutions and the numerical results obtained show that the method produces accurate results.展开更多
In this work, by extending the method of Hockney into three dimensions, the Poisson’s equation in cylindrical coordinates system with the Dirichlet’s boundary conditions in a portion of a cylinder for is solved dire...In this work, by extending the method of Hockney into three dimensions, the Poisson’s equation in cylindrical coordinates system with the Dirichlet’s boundary conditions in a portion of a cylinder for is solved directly. The Poisson equation is approximated by fourth-order finite differences and the resulting large algebraic system of linear equations is treated systematically in order to get a block tri-diagonal system. The accuracy of this method is tested for some Poisson’s equations with known analytical solutions and the numerical results obtained show that the method produces accurate results.展开更多
Tess of the D'Urbervilles was written by Thomas Hardy who was a famous critical realistic writer at the turn of the 19 thcentury in England.Tess of the D'Urbervilles is the most influential one of all his work...Tess of the D'Urbervilles was written by Thomas Hardy who was a famous critical realistic writer at the turn of the 19 thcentury in England.Tess of the D'Urbervilles is the most influential one of all his works.The novel describes a tragic life about abeautiful girl after disgrace.This paper analyses what cause Tess' s tragic life.The first part is an introduction of Tess of the D'Urb-ervilles and its writer Thomas Hardy.And then is the analysis on the causes of her tragic life —characters of Tess,Society Influ-ence and influence of Pessimism & Fatalism of Hardy.Though Tess fought with the society,as a common person she is helpless atthat time.In the end,she turned out to be the sacrificial victim of society like all other things which disobey the morality and ethic.展开更多
文摘In the 1930s and 1940s,Thomas Chao,an internationally-renowned Chinese journalist,influenced Chinese journalists’way of covering and writing news with his own prominent experience in international news reporting.Based on his long-term news practice,Chao analyzed the differences between Chinese and Western press and explored the way for improvement.He called on the government to set up a national news agency so as to establish itself in the field of international communication,and helped the Central News Agency to take back Reuters’right to publish in China.Chao also actively promoted the exchange and cooperation between Chinese newspapers and news agencies and foreign press in international communication activities,striving to increase China’s voice worldwide.
文摘In this work, the three dimensional Poisson’s equation in Cartesian coordinates with the Dirichlet’s boundary conditions in a cube is solved directly, by extending the method of Hockney. The Poisson equation is approximated by 19-points and 27-points fourth order finite difference approximation schemes and the resulting large algebraic system of linear equations is treated systematically in order to get a block tri-diagonal system. The efficiency of this method is tested for some Poisson’s equations with known analytical solutions and the numerical results obtained show that the method produces accurate results. It is shown that 19-point formula produces comparable results with 27-point formula, though computational efforts are more in 27-point formula.
文摘In this work, the three-dimensional Poisson’s equation in cylindrical coordinates system with the Dirichlet’s boundary conditions in a portion of a cylinder for is solved directly, by extending the method of Hockney. The Poisson equation is approximated by second-order finite differences and the resulting large algebraic system of linear equations is treated systematically in order to get a block tri-diagonal system. The accuracy of this method is tested for some Poisson’s equations with known analytical solutions and the numerical results obtained show that the method produces accurate results.
文摘In this work, by extending the method of Hockney into three dimensions, the Poisson’s equation in cylindrical coordinates system with the Dirichlet’s boundary conditions in a portion of a cylinder for is solved directly. The Poisson equation is approximated by fourth-order finite differences and the resulting large algebraic system of linear equations is treated systematically in order to get a block tri-diagonal system. The accuracy of this method is tested for some Poisson’s equations with known analytical solutions and the numerical results obtained show that the method produces accurate results.
文摘Tess of the D'Urbervilles was written by Thomas Hardy who was a famous critical realistic writer at the turn of the 19 thcentury in England.Tess of the D'Urbervilles is the most influential one of all his works.The novel describes a tragic life about abeautiful girl after disgrace.This paper analyses what cause Tess' s tragic life.The first part is an introduction of Tess of the D'Urb-ervilles and its writer Thomas Hardy.And then is the analysis on the causes of her tragic life —characters of Tess,Society Influ-ence and influence of Pessimism & Fatalism of Hardy.Though Tess fought with the society,as a common person she is helpless atthat time.In the end,she turned out to be the sacrificial victim of society like all other things which disobey the morality and ethic.