“魅力网”概念下的城市设计方法 探讨

本文首先对魅力网进行了阐述,接着研究了魅力网的空间原型支撑体系,然后提出了一种以构形——属性空间原型互动的魅力耦合法来建构城市魅力网,最后以贵州省习水县城市空间布局专项规划为实践案例解析了魅力耦合法建构魅力网的组织逻辑。     

A STUDY OF THE STRUCTURAL LAYERS OF COUPLING AGENTS AND THE MICROSCOPIC RHEOLOGY IN THE INTERFACES OF GF/UP SYSTEMS

The coupling agents content and thickness on glassfiber (GF) surfaces which have been treated with silanesand titanates under different conditions are tested bymeans of XRF (X-Ray Fluorescent spectrometry). And therheological characteristics of the dispersed systemsprepared from the above glass fibers combined withunsaturated polyester resin (UP) are discussed. Theresults show that the rigidity of the internal layers ofsilane coupling agent absorbed by glass surfaces isgreater than the one of the external layers; while theeffect of the titanate coupling agents on the rheolo-gical characteristics of the system is approximatelythe same in each structural layer, that is due to thefact that both the internal and external layers oftitanates on glass surfaces have the similar flexiblestructures.     

Centralized Modular Diagnosis and the Phenomenon of Coupling

This paper studies modular decomposition as an approach for failure diagnosis based on Discrete Event Systems. This paper also analyses the problem of coupling produced in the implementation of centralized modular diagnosers, as coupled diagnosers cannot carry out their own diagnosis task, when there is a failure in another subsystem sharing a common energy or material flow. In addition, we propose a method to avoid diagnoser coupling, by means of decoupling functions using non-local information with respect to the coupled diagnoser and generated in the diagnoser where the failure has been isolated.     

A new method to extract gate coupling ratio and oxide trapped charge in flash memory cell

A new method to obtain the gate coupling ratio (α_g) and oxide trapped charge (Q_ox) as a result of cycling in flash memory cells is described here. Three cells with an equivalent physical structure but different erase characteristics are measured. The threshold changes versus erase times are fitted to the charge removal rate calculated based on Fowler-Nordheim (FN) tunneling and the capacitive relations among all nodes. The extracted α_g is independent of technologies and this method is particular useful when the profile of the floating gate is not traditionally rectangular owing to advanced processes such as trapezoidal poly etch or a poly-spacer addition on the floating gate sidewall. The Q_ox can also be determined once α_g is extracted.     

直线加速器中电荷束团的耦合包络线方程

采用直线加速器中有限圆柱空间电荷模型，利用电荷束团所产生的纵向和横向空间电荷力，推导得到了直线加速器中计入纵向与横向耦合效应的电荷束团的耦合包络线方程；通过数值计算，给出了纵向和横向几何因子变化的计算实例。     

Hybrid ceramic-polymer material for wood coating with high wearing resistance

The synthesis and characterization of a hybrid ceramic-polymer coating with high wearing resistance and designed to cover wood surfaces, are reported in this work. This hybrid material provides a high wearing resistance (400% higher than a conventional commercial product typically used to protect these surfaces); additionally it has a high UV resistance and high transparency and gloss. The wood surfaces were previously treated either with a primer coating or with a special coupling agent, before the hybrid coating was applied; in both cases, good adhesion with the substrate was obtained. Electronic Publication     

系统参数对多平行轴齿轮-转子系统固有特性的影响

建立了一个三平行轴齿轮耦合转子系统的有限元模型,利用Matlab软件对其进行了固有特性的分析,通过与成熟有限元分析软件ANSYS的计算结果进行对比,验证了该模型和计算结果的正确性。并在此基础上,分别讨论了齿轮啮合刚度、安装角、螺旋角以及轴承刚度对系统弯-扭-轴-摆耦合固有特性的影响。结果表明,齿轮参数会影响系统耦合新频率,而轴承刚度则会造成系统固有频率的突变以及振型的变化。该研究结果为传动系统的优化设计提供了理论基础。     

常规井中激发地面接收微测井专用电缆的改进

微测井资料是石油地震勘探中设计激发井深、求取静校正量的主要依据。根据常规井中激发地面接收微测井下井装置存在的问题,提出了简化专用电缆的方法,不仅解决了常规井中激发地面接收微测井专用电缆存在的问题,提高了微测井采集的记录质量,而且降低了施工成本。     

双曲拱桥的车桥耦合振动试验研究

行驶汽车的轴重和速度超出设计范围给双曲拱桥的动力性能造成了很大的影响,然而这方面的研究却很少.结合1座旧双曲拱桥,进行了实地车桥耦合振动试验,得出了车速与动力系数、冲击系数之间的关系,以及车辆荷载作用下桥梁振动的规律;同时对旧桥进行了参数分析,并据此进行了裸拱状态的理论耦合振动分析,得出了一些结论,可为以后双曲拱桥的评估及加固设计提供参考.     

液压安全联轴器机械性能的研究分析

随着现代工业的发展,各类设备中工作超载安全保护系统越来越备受关注。液压安全联轴器是一种新型具有联结和过载保护双重功能的通用基础部件,阐述了液压联轴器的结构特点、工作原理、技术性能、优点及在其使用过程中应注意的问题。