1)  progressive failure analysis
逐步破坏分析
1.
The resistance force probability characteristics of structural system is obtained by progressive failure analysis and simulation methods- Finally, the structural reliability is determined by the design criterion of resistance force to load.
本文探讨了结构体系在超载作用下的结构可靠性问题,提出了结构构件的强度和稳定的极限状态,以及构件的复合承载能力,采用逐步破坏分析方法和模拟方法,确定了结构体系的抗力概率特性,并由荷载抗力设计准则确定了结构体系的可靠度。
2)  Gradual
逐步
1.
The Proof of the Principle of Inequality Gradual Adjustment;
证明不等式的逐步调整原理
3)  stepwise regression
逐步回归
1.
Influence relationship between clothing structure designing math model positions in stepwise regression;
逐步回归中服装结构设计数学模型部位间的影响关系
2.
Predicting the properties of aliphatic alcohols in stepwise regression;
用逐步回归法预测脂肪醇的-lgS_w和lgK_(ow)
3.
Rapid differential diagnosis of thalassemia trait and iron-deficiency anemia with stepwise regression analysis;
逐步回归分析快速鉴别诊断地中海贫血与缺铁性贫血
4)  Step crystallization
逐步结晶
5)  decompression step by step
逐步减压
1.
The effects of temperature,time of reaction,amount of catalyst,time of esterifying,time of decompression step by step,etc, on molecular weight of PLA were studied.
以L-乳酸单体为原料,用逐步减压缩聚法合成了相对高分子量的聚乳酸。
6)  progressive failure
逐步失效
1.
The objective of the study were to find a reasonable degradation rule to simulate the progressive failure.
本文提出一种合理的材料刚度退化方法模拟材料失效过程,计算中采用Hash in准则为失效判据,考虑了接触关系,材料逐步失效以及几何非线性等因素。
2.
By this method, the influence of high order frequencies, modals and progressive failure on the damping matrix is considered.
本文建立了能汁及多阶模态频率、振型以及损伤影响的复合材料层合结构阻尼矩阵的计算方法,并基于 Mindlin假定的复合材料板层合板单元和复合材料逐步失效判据,建立了含损伤复合材料板动力响应分析的有限元方法。
参考词条
补充资料:不破坏中子活化分析(neutron activation analysis
分子式:
CAS号:

性质:又称不破坏中子活化分析(neutron activation analysis;ND NAA)。在这类分析中,样品受中子照射后,不作任何化学处理,直接用核辐射探测器测量其放射性。自从20世纪70年代初半导体探测器的出现,使该法迅速发展,尤其是利用短寿命核素的仪器中子活化分析,具有灵敏度高、分析速度快、免除放射性废物处理等优点。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。