Brain-machine interface could give patients back their speech,sight or mobility In The Matrix,the protagonist connects to the Matrix to navigate between the real and virtual worlds.In Ghost in the Shell,the brain-mach...Brain-machine interface could give patients back their speech,sight or mobility In The Matrix,the protagonist connects to the Matrix to navigate between the real and virtual worlds.In Ghost in the Shell,the brain-machine interface becomes an important bridge between man and machine.These science fiction works show a technology that was as fascinating as it was inaccessible-until recently.This interface,which for a long time only existed in fantasy,is now appearing in the real world.展开更多
Disassembly sequence planning （DSP） plays a significant role in maintenance planning of the aircraft. It is used during the design stage for the analysis of maintainability of the aircraft. To solve product disassem...Disassembly sequence planning （DSP） plays a significant role in maintenance planning of the aircraft. It is used during the design stage for the analysis of maintainability of the aircraft. To solve product disassembly sequence planning problems efficiently, a product disassembly hybrid graph model, which describes the connection, non-connection and precedence relationships between the product parts, is established based on the characteristic of disassembly. Farther, the optimization model is provided to optimize disassembly sequence. And the solution methodology based on the genetic/simulated annealing algorithm with binaxy-tree algorithm is given. Finally, an example is analyzed in detail, and the result shows that the model is correct and efficient.展开更多
The formulation of multibody dynamics was studied based on variational principle. The body coonection matrix was introduced to define the connection configuration. The expression for the system kinematics was obtained...The formulation of multibody dynamics was studied based on variational principle. The body coonection matrix was introduced to define the connection configuration. The expression for the system kinematics was obtained by using the body connection matrix. From variational principle the general dynamical equations for multibody system were derived and the dynamical equations were given for multibody system subjected to the constraints.展开更多
文摘Brain-machine interface could give patients back their speech,sight or mobility In The Matrix,the protagonist connects to the Matrix to navigate between the real and virtual worlds.In Ghost in the Shell,the brain-machine interface becomes an important bridge between man and machine.These science fiction works show a technology that was as fascinating as it was inaccessible-until recently.This interface,which for a long time only existed in fantasy,is now appearing in the real world.
基金supported by the National High Technology Research and Development Program of China(2006AA04Z427).
文摘Disassembly sequence planning （DSP） plays a significant role in maintenance planning of the aircraft. It is used during the design stage for the analysis of maintainability of the aircraft. To solve product disassembly sequence planning problems efficiently, a product disassembly hybrid graph model, which describes the connection, non-connection and precedence relationships between the product parts, is established based on the characteristic of disassembly. Farther, the optimization model is provided to optimize disassembly sequence. And the solution methodology based on the genetic/simulated annealing algorithm with binaxy-tree algorithm is given. Finally, an example is analyzed in detail, and the result shows that the model is correct and efficient.
文摘The formulation of multibody dynamics was studied based on variational principle. The body coonection matrix was introduced to define the connection configuration. The expression for the system kinematics was obtained by using the body connection matrix. From variational principle the general dynamical equations for multibody system were derived and the dynamical equations were given for multibody system subjected to the constraints.
