古汉语谦敬称谓词类的词性探讨

古汉语谦敬称谓词类的词性，有两种不同的看法：代词说和名词说。通过全面考察，我们发现它们的语法功能、语义演变、代替作用等，都同名词基本相同，而与代词相距较远。因此，它们应该归属于名词。仅仅因为其代替作用就把它们归为代词是不恰当的，我们应该考虑其整体特点。     

视讯业务新热点--视频会议系统

视频会议系统集语音、数据、图像为一体，可帮助相隔千里之外的人们实现面对面的实时沟通，它分为软件视频会议系统和硬件视频会议系统。硬件视频会议系统价格昂贵，但稳定性强，视频质量可靠；软件视频会议系统价格低廉，实现方便，易于升级维护，是视频会议系统今后的发展方向。     

弯管列当的补充描述

The name Hydrocotyle chinensis (Dunn) Craib (Apiaceae) used in 《Flora Reipub- licae Popularis Sinicae》 has had a confused history and is also a later homonym of H. chinesis L. Hydrocotyle shanii is proposed as a new name for this species to commemorate ProfessorRen-hwa Shan's lifelong study of the Apiaceae.     

快速氢原子与原子氦碰撞截面计算

应用量子力学第一玻恩近似和氢原子与氦原子的解析波函数,计算了它们弹性碰撞和各种非弹性碰撞截面。     

燃料电池

论述了燃料电池的原因,详细分析了燃料电池的特点和类型,并对其发展前景作了展望。     

松下“新画王”彩电的光栅失真校正电路

本文分析松下“新画王”彩电的光栅失真校正电路的原理,供参考。     

基于H.264的嵌入式无线视频监控系统设计

设计了一种基于H.264视频压缩标准的嵌入式无线视频监控系统,详细给出了该系统硬件和相应的软件实现方法,并针对RTP网络数据传输出现的问题给出了解决方案。实践证明,本系统设计合理,运行可靠。     

Who contributes voluntarily to OSS? An investigation among German IT employees

Based on newly assembled survey data, we analyze which individual characteristics of IT employees are associated with the willingness to participate voluntarily in Open Source Software (OSS) projects. We find that, contrary to common expectations, formal educational attainment is not positively associated with the probability or level of OSS contributions. The group of university dropouts, however, does show a particularly high probability of working on such projects. Furthermore, we obtain the striking and novel finding that work-related OSS activities play an important role in determining voluntary OSS contributions during leisure time. Although one has to be cautious regarding the direction of causality, we interpret this as evidence of career-oriented motives in voluntary OSS contributors. The finding is also reinforced by our more specific analysis of the importance of such motives in determining the actual effort invested in OSS projects.