Bruchanalyse an Hohlgläsern

Failure analysis of hollow glasses The failure analysis is very important to clarify damages of hollow glasses. Damages of glass bottle through over pressure are very often linked with damages to persons. This is the reason why the causal research is from particular importance. Different surface characteristics of glass fragments as well as the fracture pattern give hints to the direction of the crack, the stress just before breakage and the reason of stress. A reconstruction of the bottle is a further helpful instrument for cause studies. The difference of the various characteristics of the surface will be explained. Further on there will be discussed different reasons and mechanism of fracture.     

采煤机液压系统油液污染监测与控制方法研究

分析引起采煤机液压系统油液污染的主要根源，在油液污染动态平衡分析的基础上，提出了实现采煤机液压系统油液污染监测和污染控制基本方法。     

水泥厂用耐热钢选材与结构

水泥厂用耐热钢配件使用寿命的长短直接影响水泥的产量,而制约配件组织性能的各合金元素含量,又直接影响水泥生产的成本。     

数字电视显示图像的同心度、重显率和过扫描

讨论了数字电视显示图像的同心度、重显率和过扫描，描述了它们的测量方法，重点分析了它们之间的内在联系，以及用它们来衡量显示图像质量的优缺点。实测表明，正确调整和测定这些指标，对保证数字电视图像主观效果具有重要作用。     

关于"顶水工作的太阳热水器"的设想

本文附图所示是顶水工作的太阳热水器的原理图。太阳光能被位于真空玻璃管（1）内的导热能力强的紫铜棒（2）吸收，并传给水箱（5）底部的紫铜板（3），水箱内的水主要用对流换热的方式吸取紫铜板的热量而加热升温。如果水温达不到所设定的值，可由电热元件（4）以接力的方式继续加热，直至达到设定的水温为止。热水由水箱和外壳（10）之间所填充的绝热材料保温。沐浴时，打开进水阀门，冷水从管（8）进入水箱，慢慢顶推热水经曲折通道从管（9）流出（近似于单向活塞流）至喷头淋下，直至冷水到达管（9）为止。此间，沐浴者享受着太阳的恩惠。曲折通道由水箱箱底紫铜板、箱顶、左右箱壁以及垂直安装的隔板组成，但曲折通道的尺寸要合理，既利于水的对流换热，又要让冷水能顶推着热水走而尽量减少冷热水的混合。当然隔板三边与水箱壁之间要密合，防止水在流动过程中短路。显然还有着单向活塞流功能的其它结构和方案。     

Audio-visual interaction in multimodal communication

Multimedia signal processing is more than simply “putting together” text, audio, images, and video. It is the integration and interaction among these different media that creates new systems and new research challenges and opportunities. In multimodal communication where speech is involved, audio-visual interaction is particularly significant