Yttria (Y) dispersed ferrum (Fe) films were prepared by a double-target magnetron co-sputtering method.Vacuum annealing and xenon ion irradiation were conducted
为了充分利用区域资源和能源以实现生态工业园可持续发展模式,从系统动力学的角度探讨了区域生态工业系统的演变规律,结合自组织竞争神经网络的算法,分析了园区主体间基于物
A novel double 1:11 series arsenotungstate, [CuI(phen)2]5H6[Sm(AsW11O39)2]·6H2O(phen=1,10-phenanthroline) was synthesized by the hydrothermal method and charac
Using soil data of the Second National Field Survey,the soil fertility of wetland ecosystem of Dongting Lake was evaluated by using the technology of GIS and me
The water exchange matrix is an efficient tool to study the water exchange among the sub-areas in large-scale bays. The application of the random walk method to
在我国商品流通领域,不仅面临诸多迫切需要解决的近期问题,而且存在需作长远考虑的中长期战略问题.本报告从国内外经济形势新动向和商贸流通服务业发展新趋势出发,对该领域重
A novel catalytic kinetic method is proposed for the determination of Se(Ⅳ),Se(Ⅵ),and total inorganic selenium in water based on the catalytic effect of Se(Ⅳ
桡足类浮游动物存在于饮用水水源中,对饮用水安全以及人类健康构成了潜在威胁。以剑水蚤为研究对象,研究了臭氧对桡足类浮游动物的预氧化效果及其影响因素,探讨臭氧对桡足类浮游动物的灭活机理。结果表明,在低浓度、短接触时间下臭氧对浮游动物的灭活效率相对较低。臭氧的除蚤效率受pH值的影响较小,但随着有机物含量的增加而降低。电镜扫描显示,经臭氧氧化后剑水蚤体表发生了明显的皱缩现象。三维荧光光谱扫描发现,臭氧使剑
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
2012年度国际蛋品伦敦年会围绕“信任、透明度、忠诚度、可持续性”,探讨了蛋品可持续消费、鸡蛋环境足迹、墨西哥禽流感影响、欧盟动物福利指令影响、鸡蛋营养研究等主题.如