NMOS器件两次沟道注入杂质分布和阈电压计算

分别考虑了深浅两次沟道区注入杂质在氧化扩散过程中对表面浓度的贡献。对两次注入杂质的扩散分别提取了扩散系数的氧化增强系数、氧化衰减系数和有效杂地系数，给出了表面浓度与工艺参数之间的模拟关系式，以峰值浓度为强反型条件计算了开启电压，文章还给出了开启电压、氧化条件、不同注入组合之间的关系式。     

MCS—51单片机在加工精度统计分析中的应用

介绍了以单片机８０３１为微处理机的加工精度统计分析仪的技术特性、工作原理、系统的硬件结构以及软件设计。     

滑移顶梁液压支架稳定性观测及控制

介绍了华亭县煤矿滑移支架放顶煤工作面支架稳定性的观测结果;找出了影响支架稳定性的主要因素;提出了改进措施。     

宝珠寺水电厂监控系统AGC功能调试

具备自动发电控制（AGC）功能的机组在电网中的作用越来越大，自动发电控制技术已成为现代电网运行中不可缺少的手段。宝珠寺电厂AGC设有3种控制方式。其功能调试分为两步进行：现地控制功能调试和远方控制功能调试。     

安溪四大名茶

安溪地处福建东南部，境内峰峦叠嶂、气候温和、雨量充沛、土壤肥沃，很适宜于茶树的种植。     

小巧精致——明基Joy Bee DA120 MP3播放器

打开包装，翻开琳琅满目的附件，小小的MP3机才出现在眼前。拿到手的第一感觉：四个字——小巧精致!桔红色纯金属外壳，简单长方体造型，亮银按钮，表面拉丝金属Logo。整个机器简约、小巧、精致，完全给人一种高档时尚产品的感觉，笔者不由得联想到了ZIPPO这个经典品牌的打火机，两者的造型、大小、精致都有共同之处。     

Formation of composites fabricated by exothermic dispersion reaction in A1-TiO2-B2O3 system

The formation of aluminum matrix composites fabricated by exothermic dispersion reaction in A1-TiO2-B2O3 system was investigated. The thermal analysis results show that the reactions are spontaneous and exothermic. The Gibbs free energy of α-Al2O3 is the lowest among all the combustion products, followed by TiB2 and Al3Ti. It is noted that when the B2O3/TiO2 mole ratio is below 1, the reaction products are composed of particle-like α-Al2O3, TiB2 and rod-like Al3Ti. The α-Al2O3 crystallites, resulting from the reaction between A1 and TiO2 or B2O3, are segregated at the grain boundaries due to a lower wettability with the matrix. SEM micrographs show that rod-like Al3Ti phase distributes uniformly in the matrix. When the BEO3/TiO2 mole ratio is around 1, the Al3Ti phase almost disappears in the composites, and the distribution of α-Al2O3 particulates is improved evidently.