Since its inaugural issue in 1986,the Journal of Computer Science and Technology(JCST)has been the premier English journal of China Computer Federation(CCF),serving international readers and authors by disseminating s...Since its inaugural issue in 1986,the Journal of Computer Science and Technology(JCST)has been the premier English journal of China Computer Federation(CCF),serving international readers and authors by disseminating scholarly and technical papers under a rigorous review process.展开更多
China, the fast-growing and largest developing country in the world, and the Association of Southeast Asian Nations (ASEAN), a dynamic regional organization for economic, political and security integration, are celebr...China, the fast-growing and largest developing country in the world, and the Association of Southeast Asian Nations (ASEAN), a dynamic regional organization for economic, political and security integration, are celebrating the 15th anniversary of the launch of a bilateral dialogue mechanism through the second half of this year. Back in 1991, China and ASEAN initiated bilateral dialogues to further develop their ties, right after the former established or resumed Ml diplomatic relations with members of th...展开更多
The events of the preceding two years have restructured the traditional systems of global governance which have dominated the international order since 1945.
China launches a new lunar orbiter to prepare for the future landing of a lunar vehiclechina’s second unmanned lunar probe, Chang’e-2, successfully completed its third and
WHEN Malian football star Seydou Keita got the news that Tuareg rebels in the North had killed his countrymen, and were serious about secession he broke down in tears. ＂I＇m appealing to the people to stop. It＇s no...WHEN Malian football star Seydou Keita got the news that Tuareg rebels in the North had killed his countrymen, and were serious about secession he broke down in tears. ＂I＇m appealing to the people to stop. It＇s not normal, we don＇t do that. We need peace, we are al Malians,＂ Keita said. That was one year ago. In the ensuing chaos, a coup took place on March 22, 2012 in the country＇s capital of Bamako, which overturned the then President Amadou Toumani Toure.展开更多
An element-free Galerkin method(EFGM) is used to solve the two-dimensional(2D) ground penetrating radar(GPR)modelling problems, due to its simple pre-processing, the absence of elements and high accuracy. Different fr...An element-free Galerkin method(EFGM) is used to solve the two-dimensional(2D) ground penetrating radar(GPR)modelling problems, due to its simple pre-processing, the absence of elements and high accuracy. Different from element-based numerical methods, this approach makes nodes free from the elemental restraint and avoids the explicit mesh discretization. First, we derived the boundary value problem for the 2D GPR simulation problems. Second, a penalty function approach and a boundary condition truncated method were used to enforce the essential and the absorbing boundary conditions, respectively. A three-layered GPR model was used to verify our element-free approach. The numerical solutions show that our solutions have an excellent agreement with solutions of a finite element method(FEM). Then, we used the EFGM to simulate one more complex model to show its capability and limitations. Simulation results show that one obvious advantage of EFGM is the absence of element mesh, which makes the method very flexible. Due to the use of MLS fitting, a key feature of EFM, is that both the dependent variable and its gradient are continuous and have high precision.展开更多
It’s been 20 years since the first transaction on the Shanghai Stock Exchange on December 19,1990.During the past two decades,China’s securities market has
文摘Since its inaugural issue in 1986,the Journal of Computer Science and Technology(JCST)has been the premier English journal of China Computer Federation(CCF),serving international readers and authors by disseminating scholarly and technical papers under a rigorous review process.
文摘China, the fast-growing and largest developing country in the world, and the Association of Southeast Asian Nations (ASEAN), a dynamic regional organization for economic, political and security integration, are celebrating the 15th anniversary of the launch of a bilateral dialogue mechanism through the second half of this year. Back in 1991, China and ASEAN initiated bilateral dialogues to further develop their ties, right after the former established or resumed Ml diplomatic relations with members of th...
文摘The events of the preceding two years have restructured the traditional systems of global governance which have dominated the international order since 1945.
文摘China launches a new lunar orbiter to prepare for the future landing of a lunar vehiclechina’s second unmanned lunar probe, Chang’e-2, successfully completed its third and
文摘WHEN Malian football star Seydou Keita got the news that Tuareg rebels in the North had killed his countrymen, and were serious about secession he broke down in tears. ＂I＇m appealing to the people to stop. It＇s not normal, we don＇t do that. We need peace, we are al Malians,＂ Keita said. That was one year ago. In the ensuing chaos, a coup took place on March 22, 2012 in the country＇s capital of Bamako, which overturned the then President Amadou Toumani Toure.
基金Project(41074085)supported by the National Natural Science Foundation of ChinaProject(NCET-12-0551)supported by the Funds for New Century Excellent Talents in University,ChinaProject supported by Shenghua Yuying Program of Central South University,China
文摘An element-free Galerkin method(EFGM) is used to solve the two-dimensional(2D) ground penetrating radar(GPR)modelling problems, due to its simple pre-processing, the absence of elements and high accuracy. Different from element-based numerical methods, this approach makes nodes free from the elemental restraint and avoids the explicit mesh discretization. First, we derived the boundary value problem for the 2D GPR simulation problems. Second, a penalty function approach and a boundary condition truncated method were used to enforce the essential and the absorbing boundary conditions, respectively. A three-layered GPR model was used to verify our element-free approach. The numerical solutions show that our solutions have an excellent agreement with solutions of a finite element method(FEM). Then, we used the EFGM to simulate one more complex model to show its capability and limitations. Simulation results show that one obvious advantage of EFGM is the absence of element mesh, which makes the method very flexible. Due to the use of MLS fitting, a key feature of EFM, is that both the dependent variable and its gradient are continuous and have high precision.
文摘It’s been 20 years since the first transaction on the Shanghai Stock Exchange on December 19,1990.During the past two decades,China’s securities market has
