Nanoscale RMs play important roles during the development of nanotechnology. Nations that have carried out the R＆D of nanotechnology are extending a great amount of effort in this area and have already gained some si...Nanoscale RMs play important roles during the development of nanotechnology. Nations that have carried out the R＆D of nanotechnology are extending a great amount of effort in this area and have already gained some significant achievements. At present, there has been more R＆D in the development of RMs than that of the toxicity of nanomaterials. In this paper, the current research status of nanoscale RMs around the world is introduced. Finally, the research strategy and suggestion for domestic nanoscale RMs are provided based on the recent research in nanotechnology.展开更多
After the development trend of high-speed long-haul optical communication systems and the theory of the concatenated code are analyzed,the comparative researches on the performances of the two concatenated codes of th...After the development trend of high-speed long-haul optical communication systems and the theory of the concatenated code are analyzed,the comparative researches on the performances of the two concatenated codes of the inner-outer type and the improved interleaving type are performed in detail.The theoretical analyses and simulation results show that the inner-outer type concatenated code has the greater redundancy,and the improved interleaving type concatenated code is a superior concatenated code with the advantages of the better error correction performance,moderate redundancy and easy implementation.As a result,the improved interleaving type concatenated code can be better used in high-speed long-haul optical communication systems.展开更多
文摘Nanoscale RMs play important roles during the development of nanotechnology. Nations that have carried out the R＆D of nanotechnology are extending a great amount of effort in this area and have already gained some significant achievements. At present, there has been more R＆D in the development of RMs than that of the toxicity of nanomaterials. In this paper, the current research status of nanoscale RMs around the world is introduced. Finally, the research strategy and suggestion for domestic nanoscale RMs are provided based on the recent research in nanotechnology.
基金supported by the National Natural Science Foundation of China (Nos.61071117 and 61003256)the Natural Science Foundation of CQ CSTC (No.2010BB2409)the Science and Technology Foundation of Chongqing Municipal Education Commission (No.KJ110519)
文摘After the development trend of high-speed long-haul optical communication systems and the theory of the concatenated code are analyzed,the comparative researches on the performances of the two concatenated codes of the inner-outer type and the improved interleaving type are performed in detail.The theoretical analyses and simulation results show that the inner-outer type concatenated code has the greater redundancy,and the improved interleaving type concatenated code is a superior concatenated code with the advantages of the better error correction performance,moderate redundancy and easy implementation.As a result,the improved interleaving type concatenated code can be better used in high-speed long-haul optical communication systems.
