利用工厂水泥窑灰和屋面板瓦等废物来提高道路工程中土壤的性能Aly AhmedMedhat Shehata and Said Easa加拿大多伦多维多利亚街350号瑞尔森大学土木工程系通信:Medhat Shehata HYPERLINK mailto: 2009年7月6日收到2009念10月30日修订2009年12月14日存取由Ghassan Chehab推荐为了研究工厂的屋顶瓦等废
外 文 资 料 译 文半固态加工对灰铸铁的凝固组织和力学性能的影响摘要金属的半固态加工正在成为一种生产球状结构和高品质铸件的创新技术本文是针对半固态加工(采用冷却板技术)对灰铸铁的微观结构和强度影响效果的研究试验采用是碳当量为的亚共晶灰铸铁结果表明随着固相分数的增加微观结构变得更圆更好增加初生固相分数能够增加过冷度并改变石墨形态与普通灰铸铁相比半固态加工成型的灰铸铁的抗拉强度相当的高其拉伸强
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基于粒子群优化算法的组合核函数支持向量机优化 MING-ZHU LU1 . PHILIP CHEN1 JIAN-BING HUO2 计算机工程系德克萨斯大学圣安东尼奥分校德克萨斯州78249美国 -石家庄中心支中国人民银行石家庄河北050000中国 E-MAIL: HYPERLINK mailto:lumingzhu_hbu_ lumingzhu_h
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