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Particle swarm algorithm (PSO) and genetic algorithm (GA) were used to optimize the back propagation (BP) artificial neu......
This paper reviews the research on land use change and its corresponding ecological responses. Patterns of land use chan......
In order to analyze underwater robot control system dynamics features, a system 6-DOF dynamics model was founded. Underw......
目的探究抑郁症患者在识别悲伤表情时执行控制网络中脑区的相互作用机制，并以此探讨抑郁症患者悲伤情绪处理异常的可能机制。方法利......
Numerical simulation of seismic damage and cracking of concrete slabs of high concrete face rockfill
Based on the damage constitutive model for concrete, the Weibull distribution function was used to characterize the rand......
Dynamic anti-plane analysis for two symmetrically interfacial cracks near circular cavity in piezoel
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
近年来,药品质量问题频现,为实时检测药品生产过程中的质量,本文设计开发了生产过程质量管理系统,实现了对药品质量信息的记录留痕......
On account of the multiformity of MEMS devices, it is necessary to integrate with some optical measurement techniques fo......
Abnormal expression of insulin-like growth factor-Ⅱanditsdynamicquantitativeanalysis at dif ferent s
BACKGROUND:Hepatocellular carcinoma (HCC) is characterized by multiple causes, clear multiple stages and a multifocal pr......
利用Gleeble热模拟压缩实验,研究316LN奥氏体不锈钢在温度950℃~1250℃、应变速率0.001s-1~1.0s-1下的高温变形特征,并测得相应的......
在考虑土体切向振动对横向振动影响的基础上,建立土体振动模型。对土体水平阻抗修正后与经典解进行比较,证明文中解的正确性;然后,......
针对多批次多工况化工过程,离线模型易老化失效和不易满足工业生产的实时优化控制问题,提出一种基于仿射传播聚类和动态时间弯曲距......
为研究螺旋侧板对漂浮式风力机动态响应的影响,建立基于Spar平台的5 MW风力机整机模型,利用有限元软件进行水动力计算,得到风力机......
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为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
The design and operation of high volume conveyor systems in distribution centers are important due to its high cost, lar......
监测地理国情，是测绘地理信息行业工作的拓展和重要发展方向。本文以汶川地震核心灾区人文经济专题数据分析为切入点，以满足省政府民......
The conceptual of Hefei Advanced Light Source,which is an advanced VUV and Soft X-ray source,was developed at NSRL of US......
According to the basic idea of classical yin-yang complementarity and modern dual-complementarity, in a simple and unifi......
采用三维非线性有限元法模拟海底管道受到船锚或其他坠落物体的冲击碰撞过程,并采用Newmark法和N-R迭代法相结合求解了撞击动力学......
公路设计时会出现几种设计方案都满足道路设计规范要求,造成设计人员难以抉择的局面;另外,现有的针对设计阶段道路开展行车安全性......
针对某型涡轴发动机整机试验中出现的振动过大现象,通过建立考虑低速动平衡的刚性转子系统动力学方程,求解低速动平衡后刚性转子的......
