The FTIR analysis of surfaces of tested anthracites suggests that the induced modification is time dependent and can not permanently change the surface microstructure.
开展了改性前后煤表面的傅立叶红外光谱分析,结果证明,煤表面电磁改性具有时间效应,电磁场不能永久地改变煤的内部基团微观结构。
Prediction of resistance deterioration is an important part of time-dependent reliability analysis of cable-stayed bridge.
分析斜拉桥结构动态可靠度时,目前抗力衰减预测的基本模型经验性都很大,对具体结构并不一定适用。
For the model with time-dependent birth pulses, using the stroboscopic map, the theory on bifurcation and numerical analysis, the existence and stability of the positive equilibrium are obtained.
对具有密度依赖生育脉冲的模型,运用频闪映射,结合分支理论和数值分析,得到了正平衡态的存在性、稳定性;
In this paper the methods of mode analysis and the random time dependent reliability, based on crossing rate, of random time dependent structures are suggested.
本文首先建立了随机时变结构的振型分解法,然后基于随机时变结构的超越率提出了相应的结构随机时变可靠性的计算方法。
According to the finite element method for the plane curved members, a program of time-dependent analysis for prestressed concrete curved beam bridges is developed.
用平面曲杆有限元法编写、调试了预应力混凝土曲线架桥的时效分析程序。
It is made clear through the theoretical analysis that the frequency shift is dependent on the modulation frequency, thermal time constant, bias current of the laser diode and so on.
理论分析表明频移幅度与调制频率、时间常数和半导体激光器的偏置电流等物理量有关。
The concept of time dependent reliability and the calculating model are proposed in this paper. In addition, the durability optimum design method based on reliability analysis is suggested also.
本文引入时变广义可靠度概念并建立相应的计算模式,提出了基于可靠性分析的耐久性优化设计方法。
Based on the movement equation of compressible fluid, a time-dependent finite element formula for analysis of hydrodynamic pressure on retaining structure during earthquakes is derived.
根据可压缩流体运动方程,推导建立了求解挡水结构动水压力的时域有限元公式。
Base on the above theoretical analysis, the article carries on the time-dependent system reliability analysis to some prestressed concrete continuous beam bridge.
基于以上的理论分析,本文对某预应力混凝土连续梁桥进行时变系统可靠度分析。
In this thesis, the analysis of tense as time deixis helps to reveal the context-dependent information under the mess surface.
这就导致了小说表面上过去现在未来的混乱,因此对人物思绪的理解必定是要依靠语境的。
Time-dependent Analysis of Relation Between Oil Consumption and Economic Growth in China;
在需求方面,最近中国石油消费正在放缓。
Time-dependent Analysis of Relation Between Oil Consumption and Economic Growth in China;
在需求方面,最近中国石油消费正在放缓。
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