循环经济与上海可持续发展

介绍了近年来循环经济在德国等国家的崛起，勾勒了循环经济的基本理论和行原则，指出循环经济该成为上海实施可持发展战略的突破口提出了上海发展循环经济的必然性，目标，领域和行动举措。     

云南镇沅金矿区煌斑岩矿物含量统计及其意义

利用镜下实测法和线性规划法统计了云南镇沅金矿区煌斑岩中矿物的实际含量。据此划分出该区煌斑岩岩石类型；总结出蚀变煌斑岩和矿化煌斑岩的过程中选岩矿物的变化规律；结合质量平衡计算，探讨了煌斑岩蚀交流体和矿化流体的性质。     

祁连—柴达木盆地北缘地区石炭系泥岩沉积地球化学特征

详细研究了祁连—柴达木盆地北缘地区石炭系泥岩的微量元素和稀土元素地球化学特征。各微量元素在各剖面及不同层位变化相当复杂 ,但仍有一定规律 ,这种变化与其物源供应和沉积成岩环境有关。各样品稀土总量变化较大 ,以甘肃永昌煤山子剖面总量最高 ;各泥岩样品轻稀土富集 ,Eu负异常 ,δEu介于 0 .4 4～0 .90之间。微量、稀土元素组合及比值的变化 ,显示物源区母岩为花岗岩和玄武岩的混合 ,稀土分布模式显示源岩为粘土岩、花岗岩和中性岩的混合 ,两者示物源一致。元素的丰度及其比值 ,反映当时水介质环境大部分为海相 ,亦有部分为陆相 ,与其它相标志所表征的结果是一致的。     

微机上冲裁CAD系统的开发

此文介绍了一套在微机上开发的冲裁CAD系统。它以Foxbase作为数据库管理系统,Trubo C为编程语言,能进行冲裁件图形输入与显示、工艺性分析、优化单排排样和选择板材规格、冲裁件尺寸识别和模具刃口尺寸计算、冲裁力和压力中心计算、以及凹模周界尺寸计算等。本系统主界面为下拉式菜单界面,全中文提示,人机界面友好,具有较好的可扩充性和容错性。     

Study of prediction for groundwater contamination in wastewater land treatment system

This paper uses a prediction model of groundwater pollution based on the experiments in the laboratory and in field .The model, which was tested and calibrated by the field observated data ,satisfactorily simulated the field conditions in land treatment system of wastewater . Particularly , the model can provide the reliable pollution prediction of heavy metals , organisms and nitrogen . The model was used to predict the groundwater pollution caused by the land treatment system in the region of North China . The calibration of the model showed that correlation coefficients between the tested and predictive data of Cr6+. As3+, organism and NH4+ could reach 0.990, which proved that the model possessed the realistic instructive significance for design and use of wastewater land treatment systems .     

谈谈英语学习方式的转变

很多学生现在对英语学习感到无所适从，他们觉得自己无论如何尽力也没有办法提高英语成绩。本文对这种情况的出现做了简单的分析，并提出了一些建议。     

皮革废水物化处理工艺整改的试验研究

在扬州某皮革厂原有的废水处理设施基础上，采用浓淡分流，药剂调整等方法。对其物化处理部分进行整改。结果表明，用Fe2SO4作混凝剂处理浓废水及用复合混凝剂处理淡废水，效果较好。处理后，可减少排放废水CODcr约1252t／a。处理成本从原来的4.03元／t降到1.30元／t。同时，降低了加药量的控制难度与加药频率，减轻了工人的劳动强度。     

Predatory spider mimics acquire colony-specific cuticular hydrocarbons from their ant model prey

The integrity of social insect colonies is maintained by members recognising and responding to the chemical cues present on the cuticle of any intruder. Nevertheless, myrmecophiles use chemical mimicry to gain access to these nests, and their mimetic signals may be acquired through biosynthesis or through contact with the hosts or their nest material. The cuticular hydrocarbon profile of the myrmecophilous salticid spider Cosmophasis bitaeniata closely resembles that of its host ant Oecophylla smaragdina. Here, we show that the chemical resemblance of the spider does not arise through physical contact with the adult ants, but instead the spider acquires the cuticular hydrocarbons by eating the ant larvae. More significantly, we show that the variation in the cuticular hydrocarbon profiles of the spider depends upon the colony of origin of the ant larvae prey, rather than the parentage of the spider.     

高职高专教材建设--以防灾高专地震监测专业为例

本文讨论了高职高专教材中存在的问题,提出了教材建设的基本思路,分析了在新形势下教材的形式和特点,最后对地震监测专业教材规划问题进行了初步探讨.     

复合诱变菌处理氨氮废水

采用诱变技术对微生物菌种进行了诱变处理，分别研究了紫外线诱变菌、硫酸二乙酯（DES）诱变菌和复合诱变菌对含氨废水的降解性能。结果表明，复合诱变后获得的变异菌株Z5对含氨废水中NH4^ -N的去除率比单独采用紫外线或DES诱变后获得的菌株有明显的提高。混合菌种对化肥行业废水中COD的NH4^ -N的去除率可以达到95%～98%，出水能达到行业一级排放标准。