X射线成像诊断技术是在研究激光驱动的惯性约束聚变(ICF)过程中,利用针孔相机等设备对高温高密等离子体自身发射的X射线进行拍照,通过数值模拟还原内爆压缩,以此研究激光与等离子体相互作用、内爆动力学、激光X射线转换和辐射输运等物理过程。计算结果表明:来自高温高Z的等离子体的辐射能量中接近一半是X射线的贡献,等离子体X射线携带着高温等离子体的大量有用信息。所以,研究X射线成像诊断技术有重大意义。本文根据神光-Ⅲ项目的靶室测试项目立题,以研究X射线成像诊断技术为目的,设计了一套以分幅相机为探测器 ...
齐文博
core
[Clinical characteristics and outcomes of neonatal dengue fever in Foshan]. [PDF]
Luo FJ +10 more
europepmc +1 more source
Intelligent Faults Diagnosis Technology for Electromechanical Equipment and Its Applications
稳定、可靠的诊断系统能对机电设备早期故障及性能劣化提供适时监测,从而避免突发故障,为设备维护提供有力保障。目前,用来对机电设备进行监测诊断的方法很多,但都存在各自的不足。基于此,本论文对机电系统故障检测与诊断技术进行了方法及应用研究,主要工作有: 1.针对非周期、非平稳故障特征信号提取所面临的困难,本文构建了基于WVD-PCA的故障特征提取与诊断模型。模型克服了频谱分析方法缺乏局部分析能力,不能反映振动信号时域特征的问题,利用Wigner-Ville分布建立旋转机械状态时频谱图 ...
郭前进
core
[Clinical value of cerebrospinal fluid metagenomic next-generation sequencing in the diagnosis of neonatal intracranial infection]. [PDF]
Li L, Du L.
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[Surveillance of birth defects among perinatal infants in Guiyang City, 2016-2024, and trend prediction]. [PDF]
Wang Y, Yang JY, Tang LY.
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[Research progress in artificial intelligence for the diagnosis and management of diseases in preterm infants]. [PDF]
Yuan Y, Tang LH, Guan LR.
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[A multicenter study on the risk factors for in-hospital mortality in neonates with severe asphyxia at tertiary hospitals in Henan Province]. [PDF]
Pei WJ +23 more
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[Pediatric thunderstorm asthma in China: epidemiological characteristics and comprehensive management]. [PDF]
Han P, Shen KL.
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[Primary hyperparathyroidism in pregnancy resulting in hypercalcemic crisis and acute pancreatitis: A case report]. [PDF]
Xie X +8 more
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