利用cost733class软件中的SANDRA(Simulated ANnealing and Diversified RAndomization)客观分型方法对北京地区2007~2014年暖季5~9月的小时强降水日的500hPa扰动位势高度场进行分型研究。结果显示,所划分的4类环流形势分别在蒙古、东...利用cost733class软件中的SANDRA(Simulated ANnealing and Diversified RAndomization)客观分型方法对北京地区2007~2014年暖季5~9月的小时强降水日的500hPa扰动位势高度场进行分型研究。结果显示,所划分的4类环流形势分别在蒙古、东北华北地区、河套地区和俄罗斯远东地区存在扰动低压区。根据4类环流形势的质心,将2007~2014年暖季所有日划归4类,计算每类小时强降水日占各自类型总天数的百分比得出蒙古扰动低压类的小时强降水日出现概率最大。统计小时强降水日的探空廓线得出,925hPa和850hPa的比湿中位数分别为13.01gkg^-1和10.64gkg^-1,这2个层级上最常出现的风向是180°~225°。展开更多
软件点评:Sandra 2005是来自Sisoft公司(www.sisoftware.net)的一款硬件检测工具包,它可以运行于Windows 98以后的所有Windows版本,你可以从该公司的网站下载并试用它的简装版:Sandra Lite (7.8MB)。这个试用版用于私人或教育用途...软件点评:Sandra 2005是来自Sisoft公司(www.sisoftware.net)的一款硬件检测工具包,它可以运行于Windows 98以后的所有Windows版本,你可以从该公司的网站下载并试用它的简装版:Sandra Lite (7.8MB)。这个试用版用于私人或教育用途时是免费的,与商业版本的区别只是有少部分模块(比如远程控制系统检测)不能使用,不过对普通用户已经是完全够用了。展开更多
As one of the most influential American poets in the 20th century,John Ashbery is noted for the originality,elegance,and obscurity of his poetry.Some of his most succinct ideas on"Ars Poetica",i.e.,the art o...As one of the most influential American poets in the 20th century,John Ashbery is noted for the originality,elegance,and obscurity of his poetry.Some of his most succinct ideas on"Ars Poetica",i.e.,the art of poetry,can be found in his poems on poetry.In“What’s poetry”and“And Ut Pictura Poesis Is Her Name”,Ashbery probes the true nature of poetry and provides or enacts dif⁃ferent but equally illuminating answers.Ashberyan surrealist style is also echoed in contemporary American poems written respec⁃tively by Lucy Ives and Sandra Simonds,which show a family resemblance to Ashbery in their similar use of surrealist epiphany.展开更多
文摘利用cost733class软件中的SANDRA(Simulated ANnealing and Diversified RAndomization)客观分型方法对北京地区2007~2014年暖季5~9月的小时强降水日的500hPa扰动位势高度场进行分型研究。结果显示,所划分的4类环流形势分别在蒙古、东北华北地区、河套地区和俄罗斯远东地区存在扰动低压区。根据4类环流形势的质心,将2007~2014年暖季所有日划归4类,计算每类小时强降水日占各自类型总天数的百分比得出蒙古扰动低压类的小时强降水日出现概率最大。统计小时强降水日的探空廓线得出,925hPa和850hPa的比湿中位数分别为13.01gkg^-1和10.64gkg^-1,这2个层级上最常出现的风向是180°~225°。
文摘软件点评:Sandra 2005是来自Sisoft公司(www.sisoftware.net)的一款硬件检测工具包,它可以运行于Windows 98以后的所有Windows版本,你可以从该公司的网站下载并试用它的简装版:Sandra Lite (7.8MB)。这个试用版用于私人或教育用途时是免费的,与商业版本的区别只是有少部分模块(比如远程控制系统检测)不能使用,不过对普通用户已经是完全够用了。
文摘As one of the most influential American poets in the 20th century,John Ashbery is noted for the originality,elegance,and obscurity of his poetry.Some of his most succinct ideas on"Ars Poetica",i.e.,the art of poetry,can be found in his poems on poetry.In“What’s poetry”and“And Ut Pictura Poesis Is Her Name”,Ashbery probes the true nature of poetry and provides or enacts dif⁃ferent but equally illuminating answers.Ashberyan surrealist style is also echoed in contemporary American poems written respec⁃tively by Lucy Ives and Sandra Simonds,which show a family resemblance to Ashbery in their similar use of surrealist epiphany.