排序方式： 共有8条查询结果，搜索用时 28 毫秒
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用优美的物理试题来考查能力、选拔人才、凸显新课程改革的理念,一直是高考命题专家追求的目标,考生无论会做与不会做都将经历一次美的探索． 相似文献
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用SQL和ASP.NET构建的网站,受到的威胁主要是SQL注入攻击和窃取网站敏感信息。本文主要介绍了如何加强IIS安全设置、加密WEB服务器重要文件、改变SQL端口控制并在三层交换机上拦截非法访问,通过这三项设置,打造安全的网站防御体系。 相似文献
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随着科学技术的迅猛发展,教育现代化已经向我们悄然走来。以计算机辅助教学等为重要标志的现代教学技术的开发与运用,为向学生传承知识、启迪智能的主阵地、主渠道的课堂教学带来了全新的空间,全面冲击着课堂教学的各个因素,使课堂教学正在经历着一场深刻的变革。 相似文献
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正"六步两查两展示"教学模式的灵活运用,能够很好地把新课标理念渗透到课堂教学中,优化课堂教学结构和方法,使学生由"学会"向"会学"转变,进而有效地提高课堂教学效率。下面,笔者结合教学实践,谈谈如何利用"六步两查两展示"教学模式进行数学教学。一、"六步两查两展示"教学模式中"六步"、"两查"及"两展示"的具体内容 相似文献
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Bearing Capacity of Mixed Pile with Stiffness Core 总被引：3，自引：0，他引：3
To study load transfer mechanism and bearing capacity of a mixed pile with stiffness core (MPSC), which is formed by inserting a precast reinforced concrete pile (PRCP), in-situ tests involving MPSCs with different lengths, diameters, water cement ratios and PRCPs, cement mixed piles, and drilling hole piles, were carried out. Limit bearing capacities, load-settlement curves and stress distribution of MPSCs and mixed piles were obtained. The load transfer between cement soil and PRCP was analyzed by finite element method (FEM). Test results and FEM analysis show that an MPSC has fully utilized the big friction from a cement mixed pile and the high compressive strength from a PRCP which transfers outer top load into the inner cement soil, and that inserting a PRCP into a mixed pile changes the stress distribution of a mixed pile and improves frictional resistance between a mixed pile and soil. The length and the section area on PRCP of an MPSC both have an optimum value. Adopting MPSC is effective in improving the bearing capacity of soft soil ground. 相似文献
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