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Effect of Nitrogen, Phosphorus and Potassium on the Content and Yield of DNJ of Mulberry Leaves in S
[Objective] This study aimed to scientifically improve the 1-deoxynojimycin (DNJ) yield of mulberry leaves in spring. [M......
研究了基于形变理论的金属板料成形一步有限元模拟的理论和方法，并实现了计算机程序．由于引入Hill非二次屈服准则来描述各向异性金属......
Effect of Nitrogen, Phosphorus and Potassium on the Content and Yield of DNJ of Mulberry Leaves in S
[Objective] This study aimed to scientifically improve the 1-deoxynojimycin (DNJ) yield of mulberry leaves in spring. [M......
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本文较为系统地介绍了冲压件坯料的优化设计方法,并比较分析了各自的优缺点.相比于其他方法,一步模拟方法效率高、适应面广、功能......
金属体积成形在金属加工制造业中有着不可替代的作用,是涉及到几何、材料和边界条件三重非线性的复杂物理过程。目前基于增量理论......
