Because artificial neural network can consider both quantitative and qualitative factors,it is suitable for solving uncertain problem of the evaluation of sand soil liquefaction.
神经网络方法不仅能考虑定量因素,而且能考虑定性因素的影响,因而神经网络方法适用于解决非确定性的砂土地震液化评价问题。
参考来源 - 基于GRNN的砂土液化危害等级评价模型研究It develops two classical pile group foundation models, considering clay soil and sand soil these two kind groundsills.
建立两个典型的群桩基础非线性理论分析模型,考虑分别基于粘土地基和砂土地基两种情形,基于这两个模型探讨承台底受力状态对群桩基础抗震性能的影响规律。
参考来源 - 桥梁群桩基础的抗震性能研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Bare sand soil line is adopted to correct atmospheric effects in this paper.
本文提出了校正大气影响的裸沙土壤线方法。
The experimental study on the electrokinetic remediation of phenol-polluted sand soil was performed at the laboratory.
探讨了苯酚污染砂土电动力学修复的可行性及在不同电场强度下苯酚的迁移特征和机制。
Study was carried out on the effects of application of sulphur fertilizer on yield and quality of winter wheat in sand soil.
在砂质土壤条件下,研究了追施硫肥对冬小麦产量和品质的影响。
The soil should be full of loam, a mixture of sand, silt,clay and organic material.
VOA: special.2009.04.07
Clearing the soil, arranging tons of sand colored rocks and then planting everything took nearly a month.
VOA: standard.2010.08.09
Engineers have found that wetlands, grassy fields and soil or sand filters can take in stormwater with different levels of pollution and release water with a relatively constant cleanliness.
VOA: standard.2010.08.04
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