Evaluation of water quality pollution indices for heavy metal contamination monitoring. A study case from Akpabuyo-Odukpani area, Lower Cross River Basin (southeastern Nigeria)

This article seeks to show the characteristics of homework in the traditional industrial sectors of clothing and footwear in Germany and Spain. We focus, first, on the national contexts in order to grasp how homework is embedded in the economic, political and social environment, and second, on the women's perspective regarding how homework is integrated into their everyday lives and vital expectatives. Finally, we compare the two different national and cultural contexts and draw some conclusions with which we would like to enrich further discussions on homework. The analysis is based mainly on in-depth interviews and participant observation. The study in Germany was carried out in urban and rural areas of Bavaria, and the Spanish study occurred in rural areas of Catalunya, Galicia, Andalusia, and Valencia. This revised version was published online in July 2006 with corrections to the Cover Date.     

基于Web的作业上传与批改系统的设计与实现

介绍一个基于Web远程教学的作业上传批改系统.教师和学生可以在任何时间任何地方通过Internet访问教学服务器提交作业、进行批改和评分.该系统可应用于各类远程教学系统中,提高工作效率.     

RTK与全站仪联合作业在道路网线测量中的应用

结合五沟镇区道路网线测量的实例,介绍了RTK与全站仪联合作业进行道路网线测量的方法和步骤,说明了利用全站仪和RTK进行道路断面测量不仅减少了作业人员的数量,而且还提高了测量速度和工作效率。