基于AJAX的Web无刷新页面快速更新数据方法*

针对B/S应用中的Web服务器与浏览器间频繁操作导致Web应用执行速度慢的问题,提出了一种基于AJAX的Web无刷新页面更新数据的方法。     

SrTiO3基沿面放电电极材料配方优化

采用均匀设计法设计配方,研究了以SrTiO3为基料,掺杂PbTiO3,TiO2,Bi2O3对臭氧发生器用SrTiO3基陶瓷电极材料的介电常数,正切损耗,击穿电压,电阻率等电性能的影响,通过对实验结果进行回归分析表明了各掺杂料的比例与各电参数的关系,其中Bi2O3含量对材料性能的影响最大,优化结果表明,为了获得U＞10Kv/mm,ε约100左右,thδ＜0．01,ρ＜1010Ω 材料,最适合的掺杂配方是：Bi2O31.40%,TiO20.30%,PbTiO3 0.30%和CeO20.50%。     

企业财务管理辅助决策探讨

通过对财务数据的分析,结合数据仓库开发原理,完成对财务数据仓库的数据组织及模型建立,介绍了财务管理辅助决策分析的思路及设计方法。     

嵌入式中长图无纸记录仪数据分析软件包的研究和开发

随着电子技术的发展、传统的机械式记录仪被无纸记录仪所取代是不争的事实。本文介绍了无纸记录仪数据分析软件包的结构、功能及其实现技术。     

弧焊视觉轨迹控制中的自动导引方法研究

本文给出了采用三维视觉焊缝跟踪传感器实现机器人自主寻找焊缝、跟踪焊接、结束焊接的控制方法 ,实验表明该方法能够进一步提高焊接自动化水平     

A continuous feedback approach to global strong stabilization ofnonlinear systems

We present a continuous feedback approach to the problem of global strong stabilization, for genuinely nonlinear systems that may not be stabilized, even locally, by any smooth feedback. We describe conditions under which it is possible to prove, while no smooth controllers exist, the existence of continuous state feedback control laws that achieve global strong stability (GSS) in the sense of Kurzweil (1956). The proof is constructive and carried out by developing a machinery, which combines the theory of homogeneous systems with the idea of adding a power integrator, for the explicit construction of globally stabilizing continuous controllers. We then illustrate, by means of examples, how this machinery can be used to overcome the topological obstruction caused by smooth feedback, and hence resulting in new solutions to a variety of open control problems, including global stabilization of an underactuated unstable two degree of freedom mechanical system     

Comparison between on- and off-campus behaviour and adaptability in online learning: a case from China

More and more universities and colleges are providing online courses not only for on-campus students but also for off-campus students. Tutors have to consider the differences between on- and off-campus students in order to improve effective instruction. Comparisons are made in this paper between on- and off-campus performances in online learning from four areas: learning time, path of browsing courseware, intercommunication and adaptability towards online learning. The last two areas are emphasized. Multiple approaches were adopted to collect data, which include questionnaires, posted documents, online logs, interviews and observations. This study shows that the rush time of online learning, paths of browsing courseware and favourite intercommunication means of on- and off-campus students are similar. But there are also some differences between these two groups such as competence of self-learning, enthusiasm of interpersonal exchange, dependence on tutors, feeling of learning stress, etc.     

基于概率统计的韵律短语分析

韵律短语分析是文语转换（Ｔｅｘｔ－ｔｏ－Ｓｐｅｅｃｈ）系统的重要组成部分。文章实现了一个基于概率统计的韵律短语分析方法。它首先构造了一个带有韵律短语间隔标记和词语ＰＯＳ信息的样本库,然后用它来训练和测试一个二元组模型,并针对出现的各种问题,提出了四种改进的思路。     

多降液管结晶罐的循环比的确定

结晶罐的循环比是否合理,反映了结晶罐结构性能的优劣。本文通过对糖膏在结晶罐中流动的压力降的分析,讨论了多降液管结晶罐的循环比的理论计算,并提出了等比例的校正方法,使整个计算过程变得非常简单。     

松辽盆地茂8井三维地震区薄互层储层预测方法及效果

本文针对松辽盆地陆相薄互层的沉积特点,结合茂８井三维地震区块的实际情况,采用“滑动相关法”确定地震地质层位,准确标定了各反射同相轴的地质含义。依据砂岩或砂层组在三维剖面上的特征,充分发挥人机联作解释系统的优势,利用振幅、频率对主要含油层系砂岩的横向变化进行了深入研究,经钻井验证取得了较好的效果。