可生物降解高吸水材料的制备以及制备工艺对吸水倍率的影响

以淀粉为原料，采用反相悬浮聚合方法，通过研究交联反应时反应时间、搅拌速度、反应温度以及催化剂质量分数、交联剂质量分数、淀粉质量分数和分散剂质量分数一系列工艺条件制备出可完全生物降解的高吸水材料，通过测定高吸水材料的吸水倍率揭示出制备工艺对可生物降解高吸水材料吸水倍率的影响规律。     

拉压性能不同材料全量型本构关系及环板的应力分析

将经典全量理论作了推广，考虑了应力状态对拉压性能不同材料塑性行为的影响，并用其计算了环板的应力分布，结果表明，应力状态塑性体积变形对环板的环向应力影响较大，因此，不能将拉压性能不同材料简化成体积不可压缩的理想材料。     

教学楼UPVC排水管道设计与施工技术

以校园教学楼排水系统的设计，安装为例，介绍了UPVC排水管道的材质特性，材料选用，设计与安装技术，并就UPVC管施工中的一些问题进行了分析并提出了建议。     

核反应堆厂房的非线性抗震分析

在核工程抗震计算中 ,普遍还是采用线弹性模型进行动力计算 ,但一般结构物在强震中有可能进入弹塑性变形阶段。该文的主要目的是考察结构物在线弹性模型和弹塑性模型下地震响应的不同。以反应堆厂房为例 ,介绍了线性动力算法和非线性动力算法的不同特点 ,计算了厂房在线弹性模型和弹塑性模型下地震响应 ,并对结构响应进行了比较。与线性模型相比 ,弹塑性计算所得到的结构位移和加速度较大 ,但结构内力却相差不多。结果表明 ,采用非线性模型进行抗震计算可以得到更为真实的结构响应 ,可以更加合理地指导结构设计     

论区域经济发展中物流平台的构建

文章阐述了区域经济发展中物流平台的构成要素，构建原则、系统化及其评价标准。     

管棚加固技术在地道桥顶推施工中的应用

介绍了在高速公路不中断交通的情况下，地道桥顶推施工穿越路基时所采用的管棚支护加固路基技术。工程实践表明，该技术有效地抑制了高速公路路面的沉降和路基开挖时的塌陷，保证了高速路的行车安全。     

张力减径机孔型设计系统

主要研究开发了钢管张力减径机减径过程的传统孔型、圆孔型、椭圆孔型的设计系统 ,研究了有关孔型设计过程的优化问题 ,成功地为钢管生产厂家提供一套张力减径机孔型自动设计系统 ,有效地提高了工作效率和设计的可靠性     

基于单一数据源的产品BOM多视图映射技术

为实现产品全生命周期中的物料清单 (bill ofmaterial,BOM)信息集成 ,提出了基于单一数据源的产品BOM数据多视图映射技术 ,初步建立了 BOM多视图映射的基本理论和 BOM主要视图间的 BOM映射类型 ,分析了BOM多视图间的数据映射关系 ,基于基元化组件重构理论 ,设计了 BOM多视图数据映射平台和 BOM视图映射工具组件 ,实现了分布式环境下的 BOM主要视图间的数据映射     

Microelement analysis of source of raw materials of terracotta warriors and horses of Qin’s Mausoleum in pits No. 1 and No. 2

In order to search for sources of the raw material of the Qin’s terracotta warriors and horses, we selected 20 samples of pottery warriors and pottery horses of the Qin’s Mausoleum from pit No. 1, 19 samples of pottery warriors and brick from pit No. 2, 20 samples of clays near the Qin’s Mausoleum and 2 samples of Yaozhou porcelain bodies. The 32 kinds of element content of each sample were measured by neutron activation analysis (NAA). These data were analyzed by fuzzy cluster analysis, the trend cluster analysis diagram was obtained. The results showed that samples of terracotta warriors and horses from pits No.1 and No. 2 were closely related to the loam layer near Qin’s Mausoleum, but their relations with the loess layers were not so close, and they were out of all relation to Yaozhou porcelain bodies. Thus, it could be deduced that the Li Mountain clay may be considered as the original place of the raw materials of the terracotta warriors and horses, the kiln sites might be located nearby the Qin’s Mausoleum.     

Formation of calcium phosphate mineral materialcontrolled by microemulsion

In order to prepare calcium phosphate-based material with nano-structure and bioactivity, natural lecithin and n-tetradecane were used as the amphipile and the oil phase respectively, along with the water phase, to form a microemulsion template. Phosphate mineralization was induced and controlled by the microemulsion. The products, characterized by scanning electronic microscopy, infrared spectroscopy and X-ray diffraction analysis, are composed of lecithin and hydroxyapatite, and possess the nano-structure of sticks, balls and three-dimensional nets connected by tubes. These results show that the microemulsion can be used to control calcium phosphate mineralization for the preparation of biomimetic mineral materials with various nano-structures.