Damage detection of frames using the increment of lateral displacement change

INTRODUCTION Damage detection of structures is very importantfor ensuring and evaluating the safety of structuresystems during their lifetime. The approaches de-veloped in this field may be generally classified intodynamic identification approach using dynamic testdata and static identification approach using static testdata (Wang et al., 2001). The dynamic identificationapproach has been highly developed, although severalinherent drawbacks and problems handicap the fullutilization o…     

对静态拉伸法测杨氏模量实验的改进及误差分析

由静态拉伸法结合光放大原理,用一次性增(减)砝码反复读取标尺刻度值的测量方案,对逐步增(减)砝码来测量钢丝微小伸长量的测量方法进行改进,通过对镜与标尺距离的控制,在保证微小伸长量测量质量的前提下,确定望远镜可视距离内的最佳镜与尺距离。由实验原理及其不确定度的分析,结合测量数据,计算出钢丝的杨氏模量。用置信概率为95%的不确定度对实验数据进行分析与评定,得到了较为合理的实验结果。     

周易与现代科学

本文就当代物理学的一些成就与中国古代哲学特别是《周易》的哲学思想做了分析,说明了《周易》八卦论的科学意义。     

Elastic-plastic study on high building with SRC transferring story

INTRODUCTION Due to the increasing number of building story braced by transferring member during development of high or superhigh rise buildings, and the many de-mands and restrictions on floor height and space in architecture, it is necessary to use steel reinforced concrete (SRC) materials in transferring structure. SRC has high bearing capacity, good stiffness and relatively less section dimension, and ductility, dura-bility and aseismic behavior better than that of rein-forced concre…     

不同视角下八卦掌之发展探究

文章运用口述史方法对民间八卦掌拳师进行研究,并结合文献资料论证,从中探究其新的发展模式,并为其他传统文化的发展给予可行性建议。     

Does multimedia learning theory extend to middle-school students?

The purpose of this study is to translate principles of multimedia learning from college-age readers to middle grade students, when reading science texts with a supporting diagram. In this experimental study, sixth-grade students (n = 180) were randomly assigned to display conditions before reading. Each student read two explanatory sciences passages, a life-science and a physical science text. Passages were accompanied by either no illustrations (control), illustrations of the cycle with labels for each part (parts), illustrations of the cycle with labels for each major process (steps), or illustrations showing the labels for each part and each major process (parts and steps). Additionally, there were two text conditions in which half of the students read standard text (control) and half read texts with cues which indicated to students when to access the diagrams (cued). Through ANOVA analysis, in the life-science text students showed modest improvement (partial η² = .18) from the addition of diagrams, with the parts diagram and the steps diagram outperforming the control. In the physical science text, students did not receive benefit from the diagrams. Findings did not replicate results from college-age readers to younger readers, nor between the two texts with younger readers. These results raise concern for the application of multimedia design theory to classroom practice.     

详谈十二种单纯八卦图统一的构图原理

在研究周易理论和19种八卦图结构的基础上,发现了按卦形结构构造12种单纯八卦图的一般原理。提出了这些八卦图由7种卦序、4种阴阳交错方法、2种卦图转向和乾卦的6种方位确定结构的见解,并列出了这12种单纯八卦图的结构特征表。     

基于TFG的UML状态图测试方法

随着软件规模的不断扩大,其状态空间会随之增大,甚至会出现状态大爆炸的现象,这给分析其状态转换的流程带来相当大的困难。本文探讨了一种通过把UML状态图转化为中间图TFG的方法来产生测试序列,该方法能有效降低使用UML状态图产生测试用例的难度。     

刘子华的木王星和太阳系的八大行星模式

刘子华预言的木王星应该是2002年发现的行星2002LM60(Quaoar).根据最新的观测结果,有学者定量论证了太阳系的八大行星模式:它是对称的四个类地行星和小行星带;四个类木行星和柯伊伯带(包括冥王星).     

Examining the effect of whitening on static and contextualized word embeddings

Static word embeddings (SWE) and contextualized word embeddings (CWE) are the foundation of modern natural language processing. However, these embeddings suffer from spatial bias in the form of anisotropy, which has been demonstrated to reduce their performance. A method to alleviate the anisotropy is the “whitening” transformation. Whitening is a standard method in signal processing and other areas, however, its effect on SWE and CWE is not well understood. In this study, we conduct an experiment to elucidate the effect of whitening on SWE and CWE. The results indicate that whitening predominantly removes the word frequency bias in SWE, and biases other than the word frequency bias in CWE.