5G mobile cellular networks are required to provide the significant increase in network throughput,cell-edge data rate,massive connectivity,superior spectrum efficiency,currently deploying long-term evolution(LTE)and ...5G mobile cellular networks are required to provide the significant increase in network throughput,cell-edge data rate,massive connectivity,superior spectrum efficiency,currently deploying long-term evolution(LTE)and LTE-advanced networks.To meet these challenges of 5G networks,展开更多
5G mobile cellular networks are required to provide the significant increase in network throughput, cell-edge data rate, massive connectivity, superior spectrum efficiency, high energy efficiency and low latency, comp...5G mobile cellular networks are required to provide the significant increase in network throughput, cell-edge data rate, massive connectivity, superior spectrum efficiency, high energy efficiency and low latency, compared with the currently deploying long-term evolution （LTE） and LTE-advanced networks. To meet these challenges of 5G networks, innovative technologies on radio air-interface and radio access network （RAN） are important in PHY design. Recently,展开更多
In this special issue of Neuroscience Bulletin, the topics range over emerging techniques from the nanoscopic to the macroscopic scales. At the nanoscopic level, new ways to obtain images at the individual protein le...In this special issue of Neuroscience Bulletin, the topics range over emerging techniques from the nanoscopic to the macroscopic scales. At the nanoscopic level, new ways to obtain images at the individual protein level in synapses take the re- construction of synaptic architecture to a new level, while using chromophores to disable specific proteins at selected subcellular locations allows the assessment of their functional roles in such dynamic processes as growth-cone extension and cell division. The subtle influences of axonal chan- nels and receptors on neurotransmission are revealed by recording from the blebs induced by axotomy, while methods from cloning to chemical computation are being applied to dissecting the structural-functional rules by which ion channels operatet41.展开更多
Anti-plane electroelastic problems are studied by the Trefftz boundary element method （BEM） in this paper. The Trefftz BEM is based on a weighted residual formulation and indirect boundary approach. In particular th...Anti-plane electroelastic problems are studied by the Trefftz boundary element method （BEM） in this paper. The Trefftz BEM is based on a weighted residual formulation and indirect boundary approach. In particular the point-collocation and Galerkin techniques, in which the basic unknowns are the retained expansion coefficients in the system of complete equations, are considered. Furthermore, special Trefftz functions and auxiliary functions which satisfy exactly the specified boundary conditions along the slit boundaries are also used to derive a special purpose element with local defects. The path-independent integral is evaluated at the tip of a crack to determine the energy release rate for a mode Ⅲ fracture problem. In final, the accuracy and efficiency of the Trefftz boundary element method are illustrated by an example and the comparison is made with other methods.展开更多
文摘5G mobile cellular networks are required to provide the significant increase in network throughput,cell-edge data rate,massive connectivity,superior spectrum efficiency,currently deploying long-term evolution(LTE)and LTE-advanced networks.To meet these challenges of 5G networks,
文摘5G mobile cellular networks are required to provide the significant increase in network throughput, cell-edge data rate, massive connectivity, superior spectrum efficiency, high energy efficiency and low latency, compared with the currently deploying long-term evolution （LTE） and LTE-advanced networks. To meet these challenges of 5G networks, innovative technologies on radio air-interface and radio access network （RAN） are important in PHY design. Recently,
文摘In this special issue of Neuroscience Bulletin, the topics range over emerging techniques from the nanoscopic to the macroscopic scales. At the nanoscopic level, new ways to obtain images at the individual protein level in synapses take the re- construction of synaptic architecture to a new level, while using chromophores to disable specific proteins at selected subcellular locations allows the assessment of their functional roles in such dynamic processes as growth-cone extension and cell division. The subtle influences of axonal chan- nels and receptors on neurotransmission are revealed by recording from the blebs induced by axotomy, while methods from cloning to chemical computation are being applied to dissecting the structural-functional rules by which ion channels operatet41.
基金Project supported by the National Natural Science Foundation of China (No. 10472086).
文摘Anti-plane electroelastic problems are studied by the Trefftz boundary element method （BEM） in this paper. The Trefftz BEM is based on a weighted residual formulation and indirect boundary approach. In particular the point-collocation and Galerkin techniques, in which the basic unknowns are the retained expansion coefficients in the system of complete equations, are considered. Furthermore, special Trefftz functions and auxiliary functions which satisfy exactly the specified boundary conditions along the slit boundaries are also used to derive a special purpose element with local defects. The path-independent integral is evaluated at the tip of a crack to determine the energy release rate for a mode Ⅲ fracture problem. In final, the accuracy and efficiency of the Trefftz boundary element method are illustrated by an example and the comparison is made with other methods.
