棕化废液的资源化利用研究

在PCB行业中,随着棕氧化技术代替黑氧化技术,棕化废液的排放量巨大而且成分复杂,从而推动了棕化废液处理技术的发展。文章提出化学沉淀法和Fenton法组合处理棕化废水,并合成氧化铜的新工艺。从而达到了棕化废液资源化利用的目的。     

Study of Pseudo Spin Valves Based on $L1_{0}$ (111)-Oriented FePt and FePtCu Fixed Layer With Tilted Magnetocrystalline Anisotropy

In this paper, we demonstrate a series of pseudo-spin-valve structures based on L1₀ (111)-oriented FePt and FePtCu with titled magnetocrystalline anisotropy. Highly ordered (111)-oriented L1₀ FePtCu with large anisotropy is achieved by optimizing the Cu content. Magnetoresistance (MR) up to 5% has been obtained by 1) optimizing the FePtCu growth using different underlayers, 2) enhancing the interface spin polarization using thin CoFe at the Cu interfaces, and 3) adjusting the Cu spacer thickness. The substantial MR realized with tilted fixed layer magnetization is an important prerequisite for the realization of tilted polarizer spin torque oscillators (STOs) or spin-transfer torque magnetoresistive random access memories (STT-MRAMs).     

成都金融城城市设计:立体分流、多维造景

根据CBD具有的交通立体化、景观多维化特征,成都金融城城市设计提出"流、系、连、织"的规划理念,采用交通立体分流和空间多维造景的设计策略,即从需求多样性分析出发,实现区内外的交通有效衔接、立体分流,精心组织交通入口;从成都的自然河川特征出发,布局总体结构,立体改造地形,营造多样化界面;打造以人行为目标的金融城。     

Microcellular foaming of plasticized thin PC sheet I. Effects of processing conditions

Novel microcellular foams using thin plasticized PC sheet were prepared by compression molding. The measurement results showed that T _g of plasticized PC was decreased and the molecular chain mobility was increased. Decrease in T _g and increase in chains mobility were contributed to the widen of foaming temperature window. Effects of processing conditions on cell size, cell density and relative density were also investigated. The experimental results show that the temperature, tributyl citrate and foaming agent content have more effects on the structures and morphology of the plasticized PC microcellular foam. Effects of experimental conditions on cell size distribution have also been discussed.     

现代方言词语也有声近义通现象

描写四川方言常用词"刨"的音义,表示用手或工具拨拉着向自己怀抱方向拉扯、聚拢或者保护之义。和普通话、其他方言的一些词相比较,并上溯其源,认为现代方言中也有声近义通现象。     

带有法兰接触面的空心圆锥接口重要标准分析对比

研究国家标准、国际标准和德国标准,分析国际标准带有法兰接触面的空心圆锥接口的型式和尺寸,剖析A型、C型、T型带有法兰接触面的空心圆锥接口的区别;对比国际标准和德国标准,指出标准在企业生产中的作用。     

高碾压混凝土坝施工过程仿真研究

本文根据碾压混凝土坝施工特点，采用计算机系统仿真技术和排队随机仿真网络理论，建立了高碾压混凝土坝施工交通运输系统排队网络仿真模型和高碾压坝施工浇筑过程仿真模型。应用该模型可以较好地研究高碾压混凝土坝施工过程中混凝土的运输和大坝浇筑过程问题，通过算例分析，可以看出：采用这种模型进行计算机仿真，所得结果可为高碾压混凝土坝施工组织设计提供一定参考。     

计算机辅助三维非接触测量系统的研究与应用

本文对三维非接触测量进行了简单介绍,着重对其中的投影栅相位法从光学原理、相位原理和相位解包裹三个方面分别作了详细的阐述,实例分析结果证明该方法具有较快的测量速度和准确度。