A novel data association algorithm is developed based on fuzzy geneticalgorithms (FGAs). The static part of data association uses one FGA to determine both the lists ofcomposite measurements and the solutions of m-bes...A novel data association algorithm is developed based on fuzzy geneticalgorithms (FGAs). The static part of data association uses one FGA to determine both the lists ofcomposite measurements and the solutions of m-best S-D assignment. In the dynamic part of dataassociation, the results of the m-best S-D assignment are then used in turn, with a Kalman filterstate estimator, in a multi-population FGA-based dynamic 2D assignment algorithm to estimate thestates of the moving targets over time. Such an assignment-based data association algorithm isdemonstrated on a simulated passive sensor track formation and maintenance problem. The simulationresults show its feasibility in multi-sensor multi-target tracking. Moreover, algorithm developmentand real-time problems are briefly discussed.展开更多
For data association in multisensor and multitarget tracking, a novel parallel algorithm is developed to improve the efficiency and real-time performance of FGAs-based algorithm. One Cluster of Workstation （COW） wit...For data association in multisensor and multitarget tracking, a novel parallel algorithm is developed to improve the efficiency and real-time performance of FGAs-based algorithm. One Cluster of Workstation （COW） with Message Passing Interface （MPI） is built. The proposed Multi-Deme Parallel FGA （MDPFGA） is run on the platform. A serial of special MDPFGAs are used to determine the static and the dynamic solutions of generalized m-best S-D assignment problem respectively, as well as target states estimation in track management. Such an assignment-based parallel algorithm is demonstrated on simulated passive sensor track formation and maintenance problem. While illustrating the feasibility of the proposed algorithm in multisensor multitarget tracking, simulation results indicate that the MDPFGAs-based algorithm has greater efficiency and speed than the FGAs-based algorithm.展开更多
本文中应用全部PECVD工艺沉积a-SiOx:H、a-SiNx:H,和a-SiOx:H/a-SiNx:H叠层系统,比较了不同钝化膜对多晶硅太阳能电池发射极和背面钝化效果,应用FGA、RTP等热处理方法对钝化膜进行处理,重点讨论了FGA(Forming gas annealing)温度和时间...本文中应用全部PECVD工艺沉积a-SiOx:H、a-SiNx:H,和a-SiOx:H/a-SiNx:H叠层系统,比较了不同钝化膜对多晶硅太阳能电池发射极和背面钝化效果,应用FGA、RTP等热处理方法对钝化膜进行处理,重点讨论了FGA(Forming gas annealing)温度和时间的长短对钝化的影响。结果表明:低温FGA对只有单面钝化膜的硅片钝化效果不明显,而在800℃下FGA有明显作用,而且钝化效果随着时间的增加呈现出先增大后减小然后再增大的现象;退火后降温环境中是否有H和降温时间对钝化效果有很大的影响,但是对于双面膜无论FGA温度高低对钝化都有帮助,文中对上述现象做了合理的解释。最后利用双面叠层钝化膜经过FGA处理后得到的多晶硅片的少子寿命达到14.2μs,比镀膜之前的3.0μs提高了11.2μs,使多晶硅太阳能电池暗电压Voc达到630mV。展开更多
Leptospirillum ferriphilum YSK was added to a native consortium of bioleaching bacteria including Acidithiobacillus caldus,A.thiooxidans,A.ferrooxidans,Sulfobacillus thermosulfidooxidans,Acidiphilium spp.,and Ferropla...Leptospirillum ferriphilum YSK was added to a native consortium of bioleaching bacteria including Acidithiobacillus caldus,A.thiooxidans,A.ferrooxidans,Sulfobacillus thermosulfidooxidans,Acidiphilium spp.,and Ferroplasma thermophilum cultured in modified 9K medium containing 0.5%(W/V)pyrite.The bioleaching efficiency markedly increased.Changes in community structure and gene expression were monitored with real-time PCR and functional gene arrays.Dynamic changes that varied in different populations in the consortium occurred after the addition of L.ferriphilum YSK,with growth of A.caldus S1,A.thiooxidans A01,Acidiphillum spp.DX1-1 promoted the growth of Ferroplasma L1,inhibited that of S.thermosulfidooxidans ST,and exerted little effect on that of A.ferrooxidans CMS.Genes encoding ADP heptose,phosphoheptose isomerase,glycosyltransferase,biotin carboxylase,and protoheme ferrolyase from L.ferriphilum,acetyl-CoA carboxylase from Acidiphillum spp.,and doxD from A.caldus were up-regulated in 0-20 h.Genes encoding lipid A disaccharide synthase LpxB,glycosyl transferase,and ADP heptose synthase from A.ferrooxidans were up-regulated in 0-8 h and then down-regulated in 8-20 h.Genes encoding ferredoxin oxidoreductase from Ferroplasma sp.were up-regulated in 0-4 h,down-regulated in 4-16 h,and again up-regulated in 16-20 h.CbbS from A.ferrooxidans was down-regulated in 0-20 h.展开更多
文摘A novel data association algorithm is developed based on fuzzy geneticalgorithms (FGAs). The static part of data association uses one FGA to determine both the lists ofcomposite measurements and the solutions of m-best S-D assignment. In the dynamic part of dataassociation, the results of the m-best S-D assignment are then used in turn, with a Kalman filterstate estimator, in a multi-population FGA-based dynamic 2D assignment algorithm to estimate thestates of the moving targets over time. Such an assignment-based data association algorithm isdemonstrated on a simulated passive sensor track formation and maintenance problem. The simulationresults show its feasibility in multi-sensor multi-target tracking. Moreover, algorithm developmentand real-time problems are briefly discussed.
基金Supported by National Defence Scientific Research Foundation
文摘For data association in multisensor and multitarget tracking, a novel parallel algorithm is developed to improve the efficiency and real-time performance of FGAs-based algorithm. One Cluster of Workstation （COW） with Message Passing Interface （MPI） is built. The proposed Multi-Deme Parallel FGA （MDPFGA） is run on the platform. A serial of special MDPFGAs are used to determine the static and the dynamic solutions of generalized m-best S-D assignment problem respectively, as well as target states estimation in track management. Such an assignment-based parallel algorithm is demonstrated on simulated passive sensor track formation and maintenance problem. While illustrating the feasibility of the proposed algorithm in multisensor multitarget tracking, simulation results indicate that the MDPFGAs-based algorithm has greater efficiency and speed than the FGAs-based algorithm.
文摘本文中应用全部PECVD工艺沉积a-SiOx:H、a-SiNx:H,和a-SiOx:H/a-SiNx:H叠层系统,比较了不同钝化膜对多晶硅太阳能电池发射极和背面钝化效果,应用FGA、RTP等热处理方法对钝化膜进行处理,重点讨论了FGA(Forming gas annealing)温度和时间的长短对钝化的影响。结果表明:低温FGA对只有单面钝化膜的硅片钝化效果不明显,而在800℃下FGA有明显作用,而且钝化效果随着时间的增加呈现出先增大后减小然后再增大的现象;退火后降温环境中是否有H和降温时间对钝化效果有很大的影响,但是对于双面膜无论FGA温度高低对钝化都有帮助,文中对上述现象做了合理的解释。最后利用双面叠层钝化膜经过FGA处理后得到的多晶硅片的少子寿命达到14.2μs,比镀膜之前的3.0μs提高了11.2μs,使多晶硅太阳能电池暗电压Voc达到630mV。
基金Projects(51604308,41771300,41301274)supported by the National Natural Science Foundation of ChinaProject(2017QNCXTD_GTD)supported by the Youth Innovation Team Project of Institute of Subtropical Agriculture,Chinese Academy of Sciences+1 种基金Project(2017YFD0202000)supported by the National Key Research and Development Program of ChinaProject(2020GDASYL-20200402001)supported by the special Project of Science and Technology Development,China。
文摘Leptospirillum ferriphilum YSK was added to a native consortium of bioleaching bacteria including Acidithiobacillus caldus,A.thiooxidans,A.ferrooxidans,Sulfobacillus thermosulfidooxidans,Acidiphilium spp.,and Ferroplasma thermophilum cultured in modified 9K medium containing 0.5%(W/V)pyrite.The bioleaching efficiency markedly increased.Changes in community structure and gene expression were monitored with real-time PCR and functional gene arrays.Dynamic changes that varied in different populations in the consortium occurred after the addition of L.ferriphilum YSK,with growth of A.caldus S1,A.thiooxidans A01,Acidiphillum spp.DX1-1 promoted the growth of Ferroplasma L1,inhibited that of S.thermosulfidooxidans ST,and exerted little effect on that of A.ferrooxidans CMS.Genes encoding ADP heptose,phosphoheptose isomerase,glycosyltransferase,biotin carboxylase,and protoheme ferrolyase from L.ferriphilum,acetyl-CoA carboxylase from Acidiphillum spp.,and doxD from A.caldus were up-regulated in 0-20 h.Genes encoding lipid A disaccharide synthase LpxB,glycosyl transferase,and ADP heptose synthase from A.ferrooxidans were up-regulated in 0-8 h and then down-regulated in 8-20 h.Genes encoding ferredoxin oxidoreductase from Ferroplasma sp.were up-regulated in 0-4 h,down-regulated in 4-16 h,and again up-regulated in 16-20 h.CbbS from A.ferrooxidans was down-regulated in 0-20 h.
