新一代全球集合预报(global ensemble forecast system version 12,GEFSv12)是美国国家环境预报中心(National Centers for Environmental Prediction,NCEP)发布的最新的再预报数据集,对该数据集中的降水数据在淮河流域的适用性进行评...新一代全球集合预报(global ensemble forecast system version 12,GEFSv12)是美国国家环境预报中心(National Centers for Environmental Prediction,NCEP)发布的最新的再预报数据集,对该数据集中的降水数据在淮河流域的适用性进行评估。由于原始预报存在系统偏差,所以应用贝叶斯联合概率模型(Bayesian joint probability,BJP),对原始GEFSv12再预报数据进行统计后处理。预报验证的评价指标包括均方根误差(E)、Brier技巧评分(E)、连续等级概率技巧评分(E)、α指数及可靠性框图,注重从预报偏差、精度以及可靠性3方面评价原始预报及经过后处理的预报。结果表明:GEFSv12降水再预报数据对淮河流域具有较好的适用性,在预见期1~7 d具有预报技能;BJP统计后处理方法能有效降低预报系统性偏差,增加预报精度以及预报可靠性,经过后处理的降水集合预报将有利于进一步的水文集合预报应用。展开更多
Because interval value is quite natural in clustering, an interval-valued fuzzy competitive neural network is proposed. Firstly, this paper proposes several definitions of distance relating to interval number. And the...Because interval value is quite natural in clustering, an interval-valued fuzzy competitive neural network is proposed. Firstly, this paper proposes several definitions of distance relating to interval number. And then, it indicates the method of preprocessing input data, the structure of the network and the learning algorithm of the interval-valued fuzzy competitive neural network. This paper also analyses the principle of the learning algorithm. At last, an experiment is used to test the validity of the network.展开更多
Floorplan, clock network and power plan are crucial steps in deep sub-micron system-on-chip design. A novel di- agonal floorplan is integrated to enhance the data sharing between different cores in system-on-chip. Cus...Floorplan, clock network and power plan are crucial steps in deep sub-micron system-on-chip design. A novel di- agonal floorplan is integrated to enhance the data sharing between different cores in system-on-chip. Custom clock network con- taining hand-adjusted buffers and variable routing rules is constructed to realize balanced synchronization. Effective power plan considering both IR drop and electromigration achieves high utilization and maintains power integrity in our MediaSoC. Using such methods, deep sub-micron design challenges are managed under a fast prototyping methodology, which greatly shortens the design cycle.展开更多
This paper presents the composition, control scheme and signal processing method of frequency conversion motor speed testing system based on $7-200 PLC, and design the hardware circuit, the trapezoidal chart procedure...This paper presents the composition, control scheme and signal processing method of frequency conversion motor speed testing system based on $7-200 PLC, and design the hardware circuit, the trapezoidal chart procedure and touch screen display program. The debugging test shows that the system is simple, practical, and related design work has laid the foundation for the future.展开更多
The research was conducted in order to determine differences in the social status structure of male and female performers of folk dances. For the purpose of determining the social status structure of male and female d...The research was conducted in order to determine differences in the social status structure of male and female performers of folk dances. For the purpose of determining the social status structure of male and female dancers, 103 male and 145 female dancers aged 18-28 actively engaged in folk dancing were tested. For the assessment of social status, only one model that allows for true scientific approach to studying the structure of stratification dimensions has been made so far. The model was constructed by Saksida and later served as a basis for many studies conducted by other authors as well （Saksida, Caserman, Petrovic, Momirovic, and Hosek）. Designed as a phenomenological model, it has undergone several changes over time, but it is still suitable for studying social change. The INST2 questionnaire modified by Boli, Popovic, Hosek, Momirovic, and Savic （SSMIN） was applied in this study. All the data obtained in this research were processed at the Multidisciplinary Research Center of the Faculty of Sport and Physical Education, University of Pristina, through the system of data processing programs designed by D. Popovic and K Momirovic. To determine differences between the groups, a method of discriminant analysis was applied.展开更多
文摘新一代全球集合预报(global ensemble forecast system version 12,GEFSv12)是美国国家环境预报中心(National Centers for Environmental Prediction,NCEP)发布的最新的再预报数据集,对该数据集中的降水数据在淮河流域的适用性进行评估。由于原始预报存在系统偏差,所以应用贝叶斯联合概率模型(Bayesian joint probability,BJP),对原始GEFSv12再预报数据进行统计后处理。预报验证的评价指标包括均方根误差(E)、Brier技巧评分(E)、连续等级概率技巧评分(E)、α指数及可靠性框图,注重从预报偏差、精度以及可靠性3方面评价原始预报及经过后处理的预报。结果表明:GEFSv12降水再预报数据对淮河流域具有较好的适用性,在预见期1~7 d具有预报技能;BJP统计后处理方法能有效降低预报系统性偏差,增加预报精度以及预报可靠性,经过后处理的降水集合预报将有利于进一步的水文集合预报应用。
基金Supported by National Nature Science Foundation of China (No.60573072)
文摘Because interval value is quite natural in clustering, an interval-valued fuzzy competitive neural network is proposed. Firstly, this paper proposes several definitions of distance relating to interval number. And then, it indicates the method of preprocessing input data, the structure of the network and the learning algorithm of the interval-valued fuzzy competitive neural network. This paper also analyses the principle of the learning algorithm. At last, an experiment is used to test the validity of the network.
基金Project supported by the Hi-Tech Research and Development Pro-gram (863) of China (No. 2002AA1Z1140)the Fok Ying TongEducation Foundation (No. 94031), China
文摘Floorplan, clock network and power plan are crucial steps in deep sub-micron system-on-chip design. A novel di- agonal floorplan is integrated to enhance the data sharing between different cores in system-on-chip. Custom clock network con- taining hand-adjusted buffers and variable routing rules is constructed to realize balanced synchronization. Effective power plan considering both IR drop and electromigration achieves high utilization and maintains power integrity in our MediaSoC. Using such methods, deep sub-micron design challenges are managed under a fast prototyping methodology, which greatly shortens the design cycle.
文摘This paper presents the composition, control scheme and signal processing method of frequency conversion motor speed testing system based on $7-200 PLC, and design the hardware circuit, the trapezoidal chart procedure and touch screen display program. The debugging test shows that the system is simple, practical, and related design work has laid the foundation for the future.
文摘The research was conducted in order to determine differences in the social status structure of male and female performers of folk dances. For the purpose of determining the social status structure of male and female dancers, 103 male and 145 female dancers aged 18-28 actively engaged in folk dancing were tested. For the assessment of social status, only one model that allows for true scientific approach to studying the structure of stratification dimensions has been made so far. The model was constructed by Saksida and later served as a basis for many studies conducted by other authors as well （Saksida, Caserman, Petrovic, Momirovic, and Hosek）. Designed as a phenomenological model, it has undergone several changes over time, but it is still suitable for studying social change. The INST2 questionnaire modified by Boli, Popovic, Hosek, Momirovic, and Savic （SSMIN） was applied in this study. All the data obtained in this research were processed at the Multidisciplinary Research Center of the Faculty of Sport and Physical Education, University of Pristina, through the system of data processing programs designed by D. Popovic and K Momirovic. To determine differences between the groups, a method of discriminant analysis was applied.
