地震映像法在岩溶地基初步勘察中的工程应用

叙述了地震映像法的工作原理和资料处理解释方法,以及溶洞在地震剖面上的各种不同波形特征反映,并通过大连市大窑湾某场区岩溶地基的初步勘察实例说明了采取地震映像法进行岩溶地基勘察的方法的有效性和实用性。     

汈06开关CSC101保护屏高频收发信机3dB告警故障分析处理

详细介绍了220kV刁东变电站汈06开关CSC101保护屏高频收发信机3dB告警故障分析处理过程,对此类故障的分析处理有一定借鉴作用。     

一起基于ATP-EMTP仿真的电容式电压互感器故障的分析研究

介绍了一起220k V线路电容式电压互感器(CVT)的故障情况,通过对该CVT进行解体检查和试验,建立了ATP-EMTP模型,根据试验数据和仿真分析认为阻尼电阻断线后二次负载突变导致CVT产生谐振过电压是故障的主要原因,最后提出了CVT电磁单元定期取油、增加在线监测系统谐波分析功能等防范类似故障的措施。     

钢渣-锰渣复混肥的制备、结构与性能

为探索钢渣、锰渣多行业大宗固废耦合利用的可行之路,利用锰渣与钢渣的水化性能制备了钢渣-锰渣复混肥,并使用扫描电子显微镜(SEM)、X射线衍射分析(XRD)、荧光X射线(XRF)、紫外线分光光度计、电感耦合等离子发射光谱仪等方法对复混肥的微观结构、物相、成分、浸出毒性及其他物理化学性能进行分析。结果表明,复混肥中钢渣、锰渣最佳质量比为9∶1,其堆积密度为1.019 g/cm3,表观密度为1.942 g/cm3,吸水率为15.23%,筒压强度为2.28 MPa,内部具有疏散毛细孔结构,主要物相为硅酸盐类、水合硅酸盐类、水合磷酸盐类、石英和硅酸二钙。该复混肥具有较高的Si、Ca、Fe、Mg等利于植物生长的中量元素和微量元素,其有效硅质量分数为18.876%,且毒性检测符合国家肥料检测标准。     

基于空间模型的全球粮食安全评价

This paper presents a scenario-based assessment of global future food security. To do that, the socio-economic and climate change scenarios were defined for the future and were linked to an integrated modeling framework. The crop yields simulated by the GIS-based Environmental Policy Integrated Climate (EPIC) model and crop areas simulated by the crop choice decision model were combined to calculate the total food production and per capita food availability, which was used to represent the status of food availability and stability. The per capita Gross Domestic Product (GDP) simulated by IFPSIM model was used to reflect the situation of food accessibility and affordability. Based on these two indicators,the future food security status was assessed at a global scale over a period of approximately 20 years, starting from the year 2000. The results show that certain regions such as South Asia and most African countries will likely remain hotspots of food insecurity in the future as both the per capita food availability and the capacity of being able to import food will decrease between 2000 and 2020. Low food production associated with poverty is the determining factor to starvation in these regions, and more efforts are needed to combat hunger in terms of future actions. Other regions such as China, most Eastern European countries and most South American countries where there is an increase in per capita food availability or an increase in the capacity to import food between 2000 and 2020 might be able to improve their food security situation.     

南昌市古建筑白蚁危害现状及防治对策

本文介绍了南昌市区古建筑遭受白蚁危害状况，分析了古建筑遭受白蚁危害的原因，从保护古建筑的角度探讨白蚁防治的措施和建议。     

南京无线数字覆盖基地项目可行性研究

本文主要就南京广电集团老鹰山发射台的南京无线数字覆盖基地项目做一个比较全面的可行性分析研究,并指出今后还需要着重解决的一些问题。     

予氧化—流态化酸浸法从攀枝花钛铁矿制取人造金红石扩大试验

攀枝花钛铁矿在回转窑中800℃下轻度氧化予理处后,进行流态化三段逆流稀盐酸常压浸出,能有效地防止钛铁矿在酸浸过程中的粉化,生产出与原矿粒度相仿的高品位富钛物料。经年产金红石60吨规模的扩大试验,进一步验证了这条工艺流程的效能,自行设计的流态化塔和双塔双槽配置,设备简单,结构合理,操作方便,设备材质易解决,很好地实现了这一工艺过程。试验获得的产品品位平均91.37％,过程粉化率0.49％,每吨金红石的成本为1104.3元。     

黄河浪店水源工程水泵优化选型

为解决运城地区三座泵站的脱流问题，经调查研究和反复论证表明，应从水源泵站泵型的优化，潜水轴流电泵参数的选择等方面着手解决，还提出了三点尚需解决的问题，以提高供水保障率。     

论多面异构组合立体的自动喷涂

从工夹具设计、喷枪设置和固化参数等方面,讨论了对多面异构组合的复杂形状工件的喷涂施工.