全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:... 金之熔 , 李立军 , 谭艳祥
来源:[J].Advances in Applied Mathematics, 2018, Vol.07 (04), pp.380-387汉斯出版社
摘要:The key for Lander to accurately achieve a soft-landing in the area of the object surface is the design of landing trajectory and control strategy. This article is based on Kepler’s law and the law of conservation of mechanical energy, and calculates Chang’e-3 nearly far mon...
作者:李立军 , 李杰华 ...
来源:[J].Mechanical Engineering and Technology, 2017, Vol.06 (01), pp.25-33汉斯出版社
摘要:According to the situation that the typical transducer axis “Ocean 1” or “xiangyang9” on the vessel work status or the maximum turning angle is unknown, a strain-angle testing method has been put forward. This method mainly through real-time measurement of the strain of...
作者:... 郑海峰 , 董宏 , 李立军
来源:[J].Sustainable Development, 2017, Vol.07 (04), pp.240-247汉斯出版社
摘要:[Objective]: Through analyzing the changes of the soil properties under different vegetations in disposal sites in Heidaigou opencast coal mine, and reached a goal to provide a scientific foundation for local region to choose appropriate vegetations for reclamation. [Methods]: St...
作者:... 杨汉宏 , 张铁毅 , 李立军
来源:[J].Sustainable Development, 2017, Vol.07 (04), pp.164-170汉斯出版社
摘要:To reveal the changes of heavy metals distribution in different reclaimed years in coal mine re-claimed areas, and evaluate the environmental pollution, in this study we chose the reclaimed areas of Heidaigou mining opencast coal mine in loess plateau region as our research objec...
作者:... 潘立波 , 李立军 , 田杰平
来源:[J].Metallurgical Engineering, 2016, Vol.03 (01), pp.34-43汉斯出版社
摘要:Advanced high strength steels (AHSS) are widely used in body-in-white to improve safety, energy saving and reduce emission. Compared with common high strength steel, there are multi-phase microstructures for advanced high strength steels, but the common high strength steel is jus...
作者:... 刘苗 , 李立军 , 刘景辉
来源:[J].华北农学报, 2010, (04), pp.221-225CNKI
摘要:研究内蒙古农牧交错带不同施肥处理对土壤性质的影响,对该区域生态农业建设具有重要的意义。试验于2006年在内蒙古呼和浩特市园艺中心试验地进行,设6种不同施肥处理方式,种植作物为玉米(承3359)、高丹草...
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