论现代城市广场的休闲文化意境

城市广场是城市形象的代表,在城市建设和市民心中占据着越来越重要的位置,被称为市民的"起居室"和"客厅".它体现城市的文化意境,承载着城市的历史文脉,反映了城市的地方文化特色,已经成为城市中最具魅力的公共空间.文章着重分析城市广场的各构成要素所体现的文化意境、城市广场的文化休闲地位,试图为城市广场发展休闲提供一定的借鉴作...     

论现代城市广场的休闲文化意境

城市广场是城市形象的代表,在城市建设和市民心中占据着越来越重要的位置,被称为市民的"起居室"和"客厅"。它体现城市的文化意境,承载着城市的历史文脉,反映了城市的地方文化特色,已经成为城市中最具魅力的公共空间。文章着重分析城市广场的各构成要素所体现的文化意境、城市广场的文化休闲地位,试图为城市广场发展休闲提供一定的借鉴作用。     

WHAT DRIVES BUSINESS AND LEISURE AIR PASSENGER TRANSPORT DEMAND

The back-propagation neural network ( BPN ) is used to explore what the most influential variables are to drive business and leisure air passenger travel from Japan to Taiwan.The variables are systematically identified , evaluated and analyzed in detail.The results reveal that some factors affect both leisure and business air passenger transport , and the others only affect one of them.Flights from Tokyo to Taipei and average hotel rate in Taiwan are the two most important factors for forecasting the demand of leisure air passenger transport , while variables related to business activities have more effect on the demand forecast of business air passenger transport.By using BPN , a forecasting model that considers actual market segments is established , and the results show that it is an accurate tool to forecast air transport demand.     

用于空间站火灾防护的隔绝式氧烛呼吸自救器研制

文章介绍某新型隔绝式氧烛呼吸自救器的研制.其呼吸保护装置主要由防护头罩、氯酸钠氧烛和CO2吸附3个单元组成,利用氧烛产生的O2通过文丘里管推动头罩内的空气循环,采用LiOH吸附剂吸附循环气体中的CO2.该装置进行了适用性试验,人体感觉良好.文章对该装置用于空间站火灾逃生自救的可行性进行了分析,认为其适用于空间站火灾逃生.