首页 | 翻译 | 影视 | 论坛 | 索引 1)  abnormality diagnosis 转异评判 1. By means of the theories and methods of mathematics and mechanics together with dam engineering knowledge, time-varying monitoring model, time-varying parameters and methods of abnormality diagnosis of concrete dam s deformation are systematic studied. 应用数学、力学理论和方法,并结合坝工知识对混凝土坝变形的时变监控模型、时变性参数的反演以及大坝变形性态转异评判方法等进行了较为系统地分析和研究,主要研究内容如下: (1)建立了混凝土坝变形安全监控时变模型,并将遗传模拟退火算法引入到混凝土坝变形的时变监控模型的建立之中,据此对混凝土坝变形时变监控模型中的影响因子进行了优化。 2)  Transmit 转异 3)  Atropisomer 阻转异构 1. Helical Structure and Rotation Direction of Atropisomer; 阻转异构的螺旋结构与旋光方向 4)  abnormality diagnosis 转异诊断 1. Based on the actual operation condition of a gravity arch dam,crack abnormality diagnosis diagrams were obtained using fracture mechanics,mathematical simulation and concrete fracture toughness that is inversed using probability analysis. 针对某重力拱坝的实际运行情况,应用断裂力学理论,结合数值仿真分析结果,依据采用概率分析法反演得到的混凝土的断裂韧度,绘制裂缝转异诊断曲线图,判断裂缝是否发生转异。 2. An abnormality diagnosis model was developed for hydraulic concrete structures operating with cracks occurring in their bodies by use of the wavelet analysis and cusp catastrophe theory. 对于带缝运行的水工混凝土结构,用小波分析和突变理论相结合的方法,建立裂缝转异诊断模型。 3. Aiming at crack problems in important hydraulic concrete structures, the cause, evolution rule and abnormality diagnosis of the crack are studied in this dissertation by using advanced theories and mathematics and mechanics, such as rough set theory, data mining, neural network, wavelet analysis, chaos theory, and so on, combining with prototype observation data. 本文针对重大水工混凝土结构运行期的裂缝问题，应用粗集理论、数据挖掘、神经网络、小波分析、混沌理论、突变理论等前沿数学方法及断裂力学等力学方法，以及数值仿真等数值模拟方法和逻辑诊断方法，结合实测资料，对运行期裂缝的成因、演变规律以及转异诊断等方面进行了系统的研究。 5)  abnormality point 转异点 1. In this paper,According to observation data,the approach to detecting abnormality point of crack based on phase plane is proposed. 结合实际工程,基于裂缝的实测资料,利用小波分析提取裂缝的时效变形,然后采用相空间重构技术对时效变形重构相平面,由此识别裂缝的转异点,确定裂缝转异发生的时间,对裂缝的稳定性进行诊断。 6)  mutational time-effect 转异时效 参考词条 补充资料：异品一分转同品遍转不定 【异品一分转同品遍转不定】　（术语）因明三十三过中，属于因之过名。为因异喻一分通，同品全分通者，以其一分通于异喻使宗不定也。见入正理论，因明大疏上。 说明：补充资料仅用于学习参考，请勿用于其它任何用途。 ©2008 dictall.com