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第二届中美空间监测预警技术交流国际会议（US-China Space Surveillance Technical Interchange）在中科院国家天文台召开
空间监测 国家天文台 同步卫星
2011/12/12
金秋十月，第二届中美空间监测预警技术交流国际会议（US-China Space Surveillance Technical Interchange）在北京举行。2011年11月17日、18日两天，近百位中美两国空间碎片监测预警领域的专家学者聚集在国家天文台多功能厅，通过专题报告和学术讨论等形式，就该领域的技术问题进行广泛而深入地学习与交流，探讨技术创新途径，共享科技发展成果。这次会议得到国家自然...
Role of quark-interchange processes in evolution of mesonic matter
quark-interchange processes master rate equations mesonic matter
2011/7/20
We divide the cross section for a meson-meson reaction into three parts. The first part is for the quark-interchange process, the second for quark-antiquark annihilation processes and the third for re...
The probability of long cycles in interchange processes
probability of long cycles interchange processes
2010/12/8
A well known phenomenon in the theory of mixing times1 is that occasionally certain aspects
of a system mix much faster than the system as a whole. Pemantle [12] constructed an example of
a random w...