SKA 科学数据处理产生的数据超出了所有已存在的分布式处理系统的处理能力，如何实现一个分布式执行框架是当前科学数据处理的一个重要研究内容。Spark 是非常成熟的一个商业框架，在互联网应用中被广泛应用，本文根据SKA项目进展要求，重点研究了如何将算法参考库(ARL)中的部分管线移植到Spark上执行。本文对部分实现过程进行了分析讨论，给出了相应的任务流程实现。最终结果表明，移植后代码生成结果符合预期，Spark能够满足部分数据分布式数据的要求，但迫切需要解决自身存在的一系列问题。

现代测控技术是一项以微型计算机为核心,在测量、测控、电子技术等相关学科的基础上,通过计算机技术、网络技术、信息处理技术、自动控制技术以及仪器仪表技术等实现现代化测控的技术.被广泛应用于社会生产和生活的各个领域,现代社会的发展已离不开现代测控技术的应用.正在向智能化、网络化、数字化等方向迅速发展.现代测控技术的发展将为人类社会的进步做出巨大的贡献.

This paper introduced the determinate and indeterminate load computing methods for main journal bearings in multi-cylinders ICE. Orbital path, minimum oil film thickness and maximum oil film pressure for some turbo-charged 4-cylinders ICE were calculated in different loads. The maximum load value calculated by indeterminate method was greater than the value given by determinate method, but the minimum value was less than the latter. Orbital path given by determinate method was different from the one by indeterminate method, so was the minimum oil film thickness and maximum oil film pressure. When the result of the computation was compared with that of experiment, it's found that the maximum oil film pressure and the minimum film thickness calculated by indeterminate method are quite close to the result of experiment. So, indeterminate load results should be used for accurate lubrication calculation.

When considering the elastic deformation of the bearing wall, back steel,alloy steel,and the surface roughness of the journal and the shell,a compositive elastohydrodynamic lubrication analysis of the main bearing in a 4100QB diesel was made.A coupling analysis of oil film thickness,oil film pressure,elastic deformation and surface roughness was made based on the finite difference method and the finite element method,and the result obtained by hydrodynamic analysis was compared with that by the analysis only considering the elastic deformation of shell.Result shows that the compositive coupling simulation can be more accord with the actual operation conditions,the film thickness becomes bigger,the film pressure becomes smaller,the load carrying area becomes larger,especially in the area of peak bearing load.