Cr3锻钢平整工作辊"桔皮"原因分析及改进措施

某热轧带钢厂Cr3材质锻钢平整工作辊每次上机服役仅生产1000t钢卷即需换辊修磨，严重影响产品质量和轧辊使用寿命。对Cr3材质锻钢工作辊进行硬度、金相组织等检验发现，虽然辊面金相组织正常，但是硬度偏低，导致在使用过程中出现塑性变形，表明这种材质的工作辊不适合在“干”平整的工况条件下用作热轧平整工作辊。建议采用具有更高耐磨性、更高热稳定性的高速工具钢、半高速工具钢和改进型高NiCr无限冷硬铸铁工作辊等材质工作辊代替Cr3材质锻钢工作辊，以提高生产效率和轧辊寿命。     

后现代影视：政治与道德话语的放逐

中国近期影视后现代性强化了世俗愿望的追求，拆解了英雄创业的神话，在放遂各种政治与道德权威话语的同时，破坏了具有历史主义特征的精神模式，使影视更加贴近百姓的感受经验。     

一种用于宽动态范围上的高精度散射测量的标准方法

The co-effect of transmitted power fluctuation and system nonlinearity produce deviations in scatterometer measurement results . An internal calibration method to deal with this problem is proposed. The method can result in more precise scatterometric measurements in a wide range. The basic principle of the method is combining real-transmitted-power detection with the calibration of system nonlinearity. A practical scheme to implement the method is also presented, which is developed based on a special designed mechanism of a microwave radiometer-scatterometer combined system.     

基于模糊理论的数控机床故障诊断方法

依据模糊数学,结合经验分析,提出了一种新的数控机床故障诊断定量分析方法。     

论远程考试

远程考试是远程教育发展的必然要求,是考试改革发展的必然要求。基于远程考试的法律基础、技术基础和社会基础,远程考试必须坚持科学性原则和以人为本的原则。     

论邓小平关于实践主体的思想

邓小平同志实践主体的思想强调了实践主体人的“现代化”，强调了改革开放实践中，“人民群众是社会历史活动主人”的观点，强调了改革开放实践目的的“人民性”－以“是否有利于提高人民生活水平”作为判定改革开放的一个重要标准。     

交际教学法在presentation中的应用

英语教学不仅是传授语言知识，同时需要培养学生运用英语交际的能力。文章论述了交际法、presentation的特点、在英语教学中如何运用交际法进行presentation，以及应注意的问题。提出了课前布置、演示和提问与评价等具体的操作实施步骤。     

The Effectiveness of Cooperative and Individualistic Approaches in Teaching Mathematics and English

This paper reports an experimental study into the effects of cooperative and individualistic approaches in teaching Mathematics and English. The study was conducted at a Vacation Learning Camp (VLC) which was held for two weeks in one of the secondary schools in Singapore. This VLC was targeted at Secondary One pupils who were classified as below average based on general ability streaming.

The individualistic teaching approach was assumed to contribute to individual efforts while the cooperative teaching approach was expected to produce cooperativeness among the subjects. The results indicated that there were no significant differences in performances in the main effects classified as the treatment groups and the sex groups in both Mathematics and English; in Mathematics, the individualistic teaching approach was more effective for the male pupils whereas the cooperative teaching approach was more effective with females. However, in English, the results were reversed.

The female pupils in the cooperative group seemed to have improved in their attitude towards learning Mathematics whereas the male pupils in the individualistic group seemed to have a more positive attitude towards learning English.     

新乡市四区六县土壤田间持水量抽样调查

对新乡市四区六县（凤泉区、红旗区、卫滨区、牧野区、获嘉县、原阳县、封丘县、延津县、新乡县、长垣县）的各种土壤类型田间持水量抽样调查结果表明：1.不同质地土壤的耕层（0～20 cm）田间持水量不同,砂土田间持水量范围8.45%～11.30%;壤土田间持水量范围11.49%～26.90%;粘土田间持水量范围24.83%～32.53%;2.相同质地土壤不同层次的田间持水量也不尽相同,砂土20～40cm土层的田间持水量7.23%～9.57%,40～60 cm土层的田间持水量9.88%～10.71%;壤土0～20 cm土层的田间持水量14.84%～25.78%,40～60 cm土层的田间持水量11.49%～26.90%;粘土20～40 cm土层的田间持水量24.83%～27.80%,40～60 cm土层的田间持水量32.16%～33.12%.     

新乡市人民公园景观分析与评价

以新乡市人民公园景观照片为样本,应用风景质量评价法中的心理物理学派的SD法对公园的景观资源进行量化评价;并借助SPSS17.0分析软件,运用因子分析法对量化数据进行分析,得出了人民公园景观视觉效果的评价结构.研究结果表明：公园美感突出,景观资源丰富,植被覆盖率和自然化程度高,但空间层次感差,色彩变化度单一.研究结果对新乡市人民公园今后的改造与建设有一定的借鉴意义.