排序方式： 共有6条查询结果，搜索用时 46 毫秒
1
1.
Víctor Leiva Antonio Sanhueza José M. Angulo 《Stochastic Environmental Research and Risk Assessment (SERRA)》2009,23(3):299-307
In this article, we develop a new model based on the Birnbaum-Saunders distribution that results to be both useful and practical
for environmental sciences. The density, distribution and hazard functions, moments and properties of this new model are presented.
A graphical analysis of the density is also provided. Furthermore, we estimate parameters, propose asymptotic inference and
discuss influence diagnostics by using likelihood methods for the new distribution. An illustrative example with real data
related to water quality indicates the adequacy on the new distribution. 相似文献
2.
3.
We study analytically and numerically the evolution of the two-dimensional coherent structure of bubbles and spikes in the
Richtmyer-Meshkov instability (RMI) for fluids with a finite density ratio. New diagnostics and scalings are suggested for
accurate quantification of RMI dynamics. New similarity features of the late-time instability evolution are observed. The
results obtained can serve as benchmarks for high energy density laboratory experiments. 相似文献
4.
陈燕萍 《CT理论与应用研究》1997,6(3):13-15
在ＣＴ／ＭＲＩ诊断学实习课中采用学导式教学法，自学阅读，课堂讨论，最后教师总结的新的教学模式替代传统式的教学模式。作者认为导式教学法有利于学生自学能力的培养，有利于对理论知识的理解和记忆，并且活跃了课堂气氛，因而是影像诊断学实习课中的一种较好的教学方法。 相似文献
5.
6.
全身ＣＴ扫描机是一个庞大、复杂的机电一体化系统。各国的ＣＴ厂商都在努力提高ＣＴ开机率，除精心设计、制造提高可靠性外，另外的途径是出现故障后及时维修，为此，我们在研制生产我国第一台全身ＣＴ机ＣＴ－Ｃ６０００同时，研制成功了ＣＴ远程维修诊断。即借助于普通电话网，在公司总部就可以实现对千里之外的ＣＴ机故障进行诊断与维修。 相似文献
1