该文提出一种参数化预报方法,制作北京及其周边地区夏季空气质量气象条件指数预报。采用2000—2007年7—9月北京市观象台大气成分(PM10)逐日观测资料和华北区域气象站网加密地面观测及探空信息,分析北京地区夏季奥运会历史同期与高污染...该文提出一种参数化预报方法,制作北京及其周边地区夏季空气质量气象条件指数预报。采用2000—2007年7—9月北京市观象台大气成分(PM10)逐日观测资料和华北区域气象站网加密地面观测及探空信息,分析北京地区夏季奥运会历史同期与高污染过程(PM10浓度>150μg/m3)关系密切的敏感气象要素和变量。引入适应度函数分级方法,计算北京周边不同观测站可能形成污染向北京输送的权重,建立北京夏季空气质量气象条件参数PLAM(parameters linking air-quality and meteorology)预报模型。PLAM指数给出北京局地污染气象条件的客观定量诊断和预测,并可指示周边地区有利(或不利)于污染向北京输送的强度和方位。夏季"静稳型"气象条件参数化PLAM方法为北京奥运气象保障任务实时提供预报产品,分别用PM10及可吸入颗粒物指数(API)对2008年7—8月PLAM逐日预报进行检验,相关系数达到0.001显著性水平。展开更多
With great promotion of mega-events in both quantities and qualities in China, the research of Mega-events has been increased. As a global hallmark event, the Olympics, with their enormous scale, universal attraction ...With great promotion of mega-events in both quantities and qualities in China, the research of Mega-events has been increased. As a global hallmark event, the Olympics, with their enormous scale, universal attraction for the media and tremendous political significance, have increasingly drawn attention from the researchers. It is obvious that Beijing has been greatly impacted by the 2008 Olympic Games as the host. The event aroused close attention of researchers, especially the problem how the Olympic stadiums and facilities can be utilized after Olympic Games. The paper employed 3 methods to conduct a survey, that is, sending questionnaires to tourists, in- terviewing with government officers, and collecting information about former Olympic Parks from Intemet and lit- eratures. The utilization of former Olympic Parks after Games was summarized and some experiences were refined. Besides, 3 main bodies including government, business operators and visitors which formed basic driving forces to influence the park＇s use were analyzed. At the same time, the paper believes that 3 topics affect the park＇s utilization involving ＇prepare to use＇, ~how to use it＇ and ~how to manage it＇, and Beijing Olympic Park can also follow that thinking and reference in the ft^her practices. Based on it, suggestions are given that Beijing Olympic Park can be planned spatially from 3 layers, the point, line and area, based on their function and infrastructure in the Games, and the area would be shaped as a new urban center with multi-functions while Mega-events and sport events are still the main content of the park.展开更多
This paper introduced the design of the hybrid powertrain of the Fuel Cell City Bus demonstrated in 2008 Beijing Olympic Games. The configuration of the hybrid fuel cell powertrain was introduced. The safety of hydrog...This paper introduced the design of the hybrid powertrain of the Fuel Cell City Bus demonstrated in 2008 Beijing Olympic Games. The configuration of the hybrid fuel cell powertrain was introduced. The safety of hydrogen storage and delivery system, the hydrogen leakage alarm system were developed. The real-time distributed control and diagnosis system based on the Time Trigger Controller Area Network （TTCAN） with 10 ms basic control period was developed. The concept and implementation of processor （or controller） monitor and process （or task） monitor technique based on the TYCAN were applied in this paper. The fault tolerant control algorithm of the fuel cell engine and the battery man- agement system were considered. The demonstration experience verified that the fault tolerant control was very important for the fuel cell city bus.展开更多
August 8,2007,a special day for Chinese people,marks the be- ginning of one-year countdown to the Beijing 2008 Olympic Games.A grand ceremony opened in Chinas Olym- pic City at 8:08pm on August 8,2008. On this signifi...August 8,2007,a special day for Chinese people,marks the be- ginning of one-year countdown to the Beijing 2008 Olympic Games.A grand ceremony opened in Chinas Olym- pic City at 8:08pm on August 8,2008. On this significant day,many celebrations referring to Olympic Games were held展开更多
文摘该文提出一种参数化预报方法,制作北京及其周边地区夏季空气质量气象条件指数预报。采用2000—2007年7—9月北京市观象台大气成分(PM10)逐日观测资料和华北区域气象站网加密地面观测及探空信息,分析北京地区夏季奥运会历史同期与高污染过程(PM10浓度>150μg/m3)关系密切的敏感气象要素和变量。引入适应度函数分级方法,计算北京周边不同观测站可能形成污染向北京输送的权重,建立北京夏季空气质量气象条件参数PLAM(parameters linking air-quality and meteorology)预报模型。PLAM指数给出北京局地污染气象条件的客观定量诊断和预测,并可指示周边地区有利(或不利)于污染向北京输送的强度和方位。夏季"静稳型"气象条件参数化PLAM方法为北京奥运气象保障任务实时提供预报产品,分别用PM10及可吸入颗粒物指数(API)对2008年7—8月PLAM逐日预报进行检验,相关系数达到0.001显著性水平。
基金Under the auspices of Beijing Municipal Science & Technology Commission(No.ZZ0935)
文摘With great promotion of mega-events in both quantities and qualities in China, the research of Mega-events has been increased. As a global hallmark event, the Olympics, with their enormous scale, universal attraction for the media and tremendous political significance, have increasingly drawn attention from the researchers. It is obvious that Beijing has been greatly impacted by the 2008 Olympic Games as the host. The event aroused close attention of researchers, especially the problem how the Olympic stadiums and facilities can be utilized after Olympic Games. The paper employed 3 methods to conduct a survey, that is, sending questionnaires to tourists, in- terviewing with government officers, and collecting information about former Olympic Parks from Intemet and lit- eratures. The utilization of former Olympic Parks after Games was summarized and some experiences were refined. Besides, 3 main bodies including government, business operators and visitors which formed basic driving forces to influence the park＇s use were analyzed. At the same time, the paper believes that 3 topics affect the park＇s utilization involving ＇prepare to use＇, ~how to use it＇ and ~how to manage it＇, and Beijing Olympic Park can also follow that thinking and reference in the ft^her practices. Based on it, suggestions are given that Beijing Olympic Park can be planned spatially from 3 layers, the point, line and area, based on their function and infrastructure in the Games, and the area would be shaped as a new urban center with multi-functions while Mega-events and sport events are still the main content of the park.
文摘This paper introduced the design of the hybrid powertrain of the Fuel Cell City Bus demonstrated in 2008 Beijing Olympic Games. The configuration of the hybrid fuel cell powertrain was introduced. The safety of hydrogen storage and delivery system, the hydrogen leakage alarm system were developed. The real-time distributed control and diagnosis system based on the Time Trigger Controller Area Network （TTCAN） with 10 ms basic control period was developed. The concept and implementation of processor （or controller） monitor and process （or task） monitor technique based on the TYCAN were applied in this paper. The fault tolerant control algorithm of the fuel cell engine and the battery man- agement system were considered. The demonstration experience verified that the fault tolerant control was very important for the fuel cell city bus.
文摘August 8,2007,a special day for Chinese people,marks the be- ginning of one-year countdown to the Beijing 2008 Olympic Games.A grand ceremony opened in Chinas Olym- pic City at 8:08pm on August 8,2008. On this significant day,many celebrations referring to Olympic Games were held
