电镀工艺条件变化对片状铁吸收剂吸波性能的影响

通过电镀法制备片状磁性吸收剂，用SEM、XRD等手段对其进行表征。用网络分析仪测试了不同工艺条件下吸收剂样品2～18GHz的电磁参数，并结合晶粒尺寸因素研究了不同工艺条件下对吸收剂电磁参数的影响．结果表明，不同的工艺条件对吸收剂电磁参数的影响具有规律性，可通过合理配置工艺参数来提高吸收剂的吸波性能。     

试论当代大学生IT素质的培养

从IT素质的涵义出发，论述了IT素质的涵盖内容、培养大学生IT素质的重要性以及IT素质的本质与特点．对高校树立人才培养新理念、培养优秀IT人才提出了有关建议及应对措施。     

高柔韧性尼龙1010材料的制备

对尼龙1010/NBR/增塑剂体系进行了系统研究,发现在挤出机中环氧扩链剂可以对尼龙进行扩链反应,且环氧树脂对尼龙1010的扩链反应活性较高,扩链效果比较明显;N-丁基苯磺酰胺是尼龙的良好增塑剂,经增塑、增韧后可以使经扩链后的尼龙1010柔韧性有明显提高.采用SEM和TEM对所制备的材料进行了形貌分析,发现用NBR增韧尼龙,对于不同的基体材料,橡胶粒子的形貌有很大不同,粒子由增韧纯尼龙的椭球形变为在增塑尼龙基体中不规则的形状.     

逆向工程技术在机械领域的应用

逆向工程技术已成为联系新产品开发过程中各种先进技术的纽带,并成为实现新产品快速开发的重要技术手段.介绍了逆向工程的概念、技术流程、测量系统、常用软件以及实际应用.     

Studies on the microstructure of the black-glazed bowl sherds excavated from the Jian kiln site of ancient China

The Jian kiln, located in present-day Jianyang county of Fujian province, mainly produced black-glazed tea bowls. Jian tea bowl was used as a utensil for tea tasting and was greatly appreciated by emperor Huizong of the Northern Song dynasty. The black glaze of Jian bowl was sometimes marked with streaks or spots, usually called “hare's fur” or “oil spot”, which are the crystalline markings of iron oxide precipitated during firing in the dragon kiln. In this study, black-glazed Jian bowl sherds excavated from the late Northern Song strata of Luhuaping and Daluhoumen Jian kiln sites were adopted as test samples. Based on the physico-chemical foundation for the formation of glaze microstructure, the correlation among composition, microstructure, and visual appearance has been investigated by means of energy-dispersive X-ray fluorescence, X-ray diffraction, and field emission electron microscopy. For the first time, the study provides realizing proofs for two kinds of microstructural forming mechanics.     

浅谈低频小功率三极管的输入电阻的计算

就低频小功率三极管的输入电阻的计算进行了探讨。     

电力负荷削峰减载系统在珠钢电炉的应用

借助现场采集装置,在计算机上获取每一分钟的冶炼工艺电能需求量,显示当前15分钟时段已发生的电耗量,调整用户设定,实现需量自动刷新、报警和专家分析推荐后续用量;实现平稳用电并减少对电网冲击,同时降低电能最大需用量以减少成本。