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羟基（OH）分子是星际介质中首次被探测到的分子，于上世纪六十年代被探测到，基态OH脉泽也是首次被探测到的天体脉泽。类似于激光是在光学波段的一种受激发射，脉泽是在微波波段的一种受激发射。目前已经探测到的天体脉泽分子种类包括：水、甲醇、氧化硅及其同位素、甲醛、氰化氢及其同位素等。OH分子的结构简单，其脉泽具有多条谱线跃迁，其中以波长在射电L波段（频率包括：1612、1665、1667和1720兆赫兹）...
Thermal shock and splash effects on burned gypseous soils from the Ebro Basin (NE Spain)
Thermal shock splash effects gypseous soils the Ebro Basin
2015/1/6
Fire is a natural factor of landscape evolution in Mediterranean ecosystems. The middle Ebro Valley has extreme aridity, which results in a low plant cover and high soil erodibility, especially on gyp...
ON THE ABSENCE OF "SPLASH" SINGULARITIES IN THE CASE OF TWO-FLUID INTERFACES
SPLASH SINGULARITIES TWO-FLUID INTERFACES
2014/4/3
We show that "splash" singularities cannot develop in the case of locally smooth solutions of the two-uid interfaces in two dimensions. More precisely, we show that the scenario of formation of singul...