A finite element method with boundary element method (FEM-BEM) is presented for computing electromagnetic induction. The features of an edge element method including the volume and surface edge element method are inve...A finite element method with boundary element method (FEM-BEM) is presented for computing electromagnetic induction. The features of an edge element method including the volume and surface edge element method are investigated in depth. Surface basis functions of edge elements to an arbitrary shape of target are derived according to the geometrical property of basis functions and applied to discretize the surface integral equation for 3-D general targets. The proposed model is presented to compute resonant frequencies and surface current of underground unexplored ordnance (UXO), and then the electromagnetic responses of single target with different frequencies and positions of sensor are simulated and results are validated by experiments.展开更多
Standard English is defined not as a language, a style, an accent, but as standardized grammar and vocabulary with different accents. And from a linguistic point of view, Standard English is no more correct than any o...Standard English is defined not as a language, a style, an accent, but as standardized grammar and vocabulary with different accents. And from a linguistic point of view, Standard English is no more correct than any other form of English. Yet it is most prestigious, and a desirable educational target. However, different varieties of English should also be taught for international communication.展开更多
文摘A finite element method with boundary element method (FEM-BEM) is presented for computing electromagnetic induction. The features of an edge element method including the volume and surface edge element method are investigated in depth. Surface basis functions of edge elements to an arbitrary shape of target are derived according to the geometrical property of basis functions and applied to discretize the surface integral equation for 3-D general targets. The proposed model is presented to compute resonant frequencies and surface current of underground unexplored ordnance (UXO), and then the electromagnetic responses of single target with different frequencies and positions of sensor are simulated and results are validated by experiments.
文摘Standard English is defined not as a language, a style, an accent, but as standardized grammar and vocabulary with different accents. And from a linguistic point of view, Standard English is no more correct than any other form of English. Yet it is most prestigious, and a desirable educational target. However, different varieties of English should also be taught for international communication.
