烟台研制出可反射掉50％以上日光热的外墙涂料

据报道，一种利用反射介质把日光反射出去，以实现隔热节能目的日光热反射外墙涂料，近日在山东烟台研制成功。目前建筑节能方式多采用隔热方式，即隔去阳光的辐射热能。如建夹层屋顶，用泡沫材料贴于外墙，采用夹层玻璃门窗幕墙等。近年，随着科技的发展和新材料的涌现，出现了以反射日光热为主的隔热新理念。目前国内已出现屋顶日光反射防水涂料。

Evaluation on Solar Radiation Resource and Photosynthetic and Thermal Potential Productivity in Shandong Province

To evaluate scientifically the change of photosynthetic and thermal potential productivity caused by climate variation,based on comparison with mean of previous 30 years(1971-2000),the change of total solar radiation,sunshine hours,photosynthetic active radiation,photosynthetic and thermal potential productivity since 2001 were analyzed through data of radiation,sunshine and temperature in Shandong Province from 1971 to 2007,and the change trend was also tested by Mann-Kendall non-parametric statistical met...

点燃我心灵火焰的老师(二等奖)

我们电大班的刘示范老师,象一团火,一团燃烧着自己也照亮别人的火。这火使多少青年抹去心头上的阴影,这火使多少青年在逆境中奋起。他在时代的炉膛里,通红炽热,忘我燃烧。 曾几何时,我心灵深处的火种被泯灭了,