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21.
姜雄 《辽宁科技学院学报》2009,11(3):41-42
文章从物理学的流体力学出发,运用相关的因素进行分析,建立沙尘暴颗粒扩散的数学模型,分析了沙尘颗粒扩散的内在因素,并且试图寻找减少沙尘暴危害的方法。 相似文献
22.
我们在低雷诺数（Re≤10）条件下建立了悬链摆的振动方程并求解,讨论了该条件下振动模式的衰减特点,解释了相关的物理现象。 相似文献
23.
Beatrice K. Reynolds 《Int J Intercult Relat》1984,8(3):269-278
The Rokeach Value Survey was used as the instrument to study the values of German and American university students. The Survey was translated into German by the hack-translation method. It was administered to 199 students in Germany in May, 1982 and to 231 students in the United States in the fall. 1982. The results show the differences as well as the similarities between the two groups in their value orientations. The distinct differences between the two groups are: (1) the Germans are more competence oriented in the means they desire to attain their end-states of existence; however, their end-states of existence are society-oriented and interpersonal. (2) The Americans are morality oriented in the modes of conduct they desire to attain their end-states of existence: their end-slates of existence are more personal or self-centered and intrapersonal than those of the Germans. Thus, the means to the end, as well as the end, differ for both groups. 相似文献