PyGC/FTIR在丁苯胶表面氧化产物分析中的应用

提出了一种利用控制热裂解温度分析丁苯胶表面氧化产物的裂解气相色谱/红外光谱(PyGC/FTIR)分析方法.借助热重分析结果确定了合适的热裂解温度,PyGC/FTIR分析结果表明丁苯胶表面氧化主要是由于丁二烯聚合所余双键和苯乙烯末端双键不稳定性所致.利用PyGC/FTIR法不但可以进行高分子单体组成分析,通过控制热解温度还可以用于其表面氧化产物的分析.     

光电子元件市场趋势

随着越来越多的移动电话和笔记本电脑配备短距离红外无线连接特性，随着更广范围的汽车车辆安装了由红外传感器实现的传感系统，以及随着交互式机顶盒和DVD播放机等消费类多媒体系统对综合遥控功能的要求越来越多，光电子元件行业的总体趋势是不断增长。     

Photoluminescence and X-ray Diffraction of Distributed Bragg Reflector

Spectral and structural characteristics of distributed Bragg reflector (DBR) in vertical-cavity surface-emitting lasers were studied with photoluminescence and double- crystal X- ray diffraction measurement. The expected high quality epitaxial DBR structure was verified. In the X- ray double- crystal rocking curves of DBR the zeroth- order peak, the first and second order satellite peaks were measured. Splitting of diffraction peak appeared in the rocking curves was analyzed. The effects of introduced deep energy levels on the structural perfection and optical properties were discussed.     

Distributed Optical Fiber Sensor for Multi-point Temperature Measurement

The distributed optical fiber sensing technology is overviewed, which is based on Raman scattering light theory. Basic operation principle, structure, system characteristics and signal processing are discussed. This structure and method of the signal processing possess of certain spatial resolution, hence will ensure the practicability of system.     

HCS-140A型红外碳硫分析仪在快速平台的应用

介绍了HCS-140A型红外碳硫分析仪的基本原理和实际应用效果．     

ZigBee在智能建筑中的应用

本文介绍了ZigBee技术无线信道组成、ZigBee技术的优点、ZigBee技术分布式网络,以及探讨了ZigBee技术在智能建筑中的应用。     

分布式能源系统：联产和联供

分布式冷热电联供系统是冷热电联产的进一步发展。本文从联产比例与终端需求比例的矛盾着眼，分析从热电联产发展为冷热电联供的必然规律。从建筑物用能需求特点和优化配置的分析指出了建筑物分布式冷热电三联供系统的特色、理论基础和技术基础，并指出了工业能源终端利用系统发展冷热电联供的潜力；最后指出了大力发展清洁能源的冷热电三联供系统是天然气下游市场发展的需要。