蓬莱19-3 FPSO和渤中25-1 FPSO设计的一些特点研究

通过多年在蓬莱19-3油田FPSO和渤中25-1油田FPSO设备维护和管理的经历,从船体、上部模块、单点系泊等方面,对这两艘FPSO上的一些系统和设备在设计方面各自的特点进行对比和分析     

BaxSr（1—x）TiO3多层膜椭偏光谱研究

用溶胶－凝胶技术在Bi(100）衬底上制备了单层和渐变型多层的BaxSr(1-X)TiO3薄膜，其膜层组分分别为：Ba0.7Sr0.3TiO3,Ba0.8Sr0.2TiO,Ba0.9Sr0.1TiO3,BaTiO3，对生长制备出的多层BaxSr(1-X)TiO3薄膜进行了变角度椭偏光谱测量，通过椭偏光谱解谱分析研究，首次得到了BaxSr(1-X)TiO3多层膜结构不同膜层的膜厚和光学常数，其结果显示：椭偏光谱分析得到的不同膜层的膜厚与卢瑟福背向散射测量得到的结果基本相符；渐变型多层膜中BaTiO3薄膜的折射率比单层BaTiO3薄膜折射率大许多，与体BaTiO3的折射率相接近，这说明渐变型多层膜中BaTiO3薄膜的光学性质与体材料的光学性质接近。     

校园网宿舍网络管理模式的探讨

讨论了高校学生宿舍区网络的特点，结合天津商学院校园网的实践，讨论了校园网宿舍网络管理的模式。     

Atomic layer chemical vapour deposition of copper

Copper films with (1 1 1) texture are of crucial importance in integrated circuit interconnects. We have deposited strongly (1 1 1)-textured thin films of copper by atomic layer deposition (ALD) using [2,2,6,6-tetramethyl-3,5-heptadionato] Cu(II), Cu(thd)₂, as the precursor. The dependence of the microstructure of the films on ALD conditions, such as the number of ALD cycles and the deposition temperature was studied by X-ray diffraction, scanning electron microscopy (SEM), and transmission electron microscopy. Analysis of (1 1 1)-textured films shows the presence of twin planes in the copper grains throughout the films. SEM shows a labyrinthine structure of highly connected, large grains developing as film thickness increases. This leads to low resistivity and suggests high resistance to electromigration.     

Dissolved organic carbon dynamics in the upper rhone: The influence of side-arms?

Dissolved organic carbon (DOC) dynamics were investigated over a two year period in the Upper Rhǒne River to examine the role of side-arms in providing DOC to the main channel in relation to discharge fluctuations, especially floods. Concentrations of DOC are shown to remain low in space and in time (average 1.5 mg ^?1) and to be more related to global hydrological events (precipitation) than to any local flushing for backwaters during floods. The results do not support the general assumption that side-arms are the providers of DOC to the main channel.     

36%渗乐乳油

３６％渗乐乳油田ＨＰ－１增效剂与乐果及其他助剂调配而成。五年田间小区和大田药效试验证明：３６％渗乐乳油高效，安全，用量少，对各类蚜虫防效优异。     

1，4－丁二醇的生产及市场需求

介绍了１，４－丁二醇的生产工艺、生产能力、产量和市场需求。     

CA／PAN中空纤维血浆分离膜的结构与性能

本研究以CA及PAN的共混溶液,通过干-湿法纺丝制取中空纤维,利用共混高聚物各组分在凝固剂中相分离速度的差异,形成具有稳定结构的中空纤维孔膜,该膜用于分离血液中的血浆成分具有良好效果。讨论了成型条件及添加剂等对膜结构、性能的影响,用SEM及图相分析仪、MAP压汞仪及DSC等分析手段,对膜的微孔结构、形态、孔尺寸及中空纤维膜的血浆通量和水通量等进行了系统的考查。     

涡轮钻具在高陡构造的应用及展望

介绍了涡轮钻具在秋参1井的应用情况,详细叙述了涡轮钻具在山前高陡构造快速钻进及防斜打直方面的优点,与常规钻井相比,机械钻速明显提高,钻井周期明显缩短,钻井成本明显下降,经济效益显著。     

减粘裂化分馏塔顶系统的腐蚀及防护

辽河石化分公司减粘裂化装置改炼辽河超稠油的减压渣油后 ,分馏塔顶系统由HCl -H2 S -HCN -有机酸 -H2 O引起的电化学腐蚀严重 ,其中油水分离器局部腐蚀速率达 3.1mm/a ,12AlMoV管束的空冷器运行不足两个月即发生泄漏。塔顶系统采用BZH - 1中和缓蚀剂、无机氨BZH - 913油溶性缓蚀剂综合注剂方案 ,使腐蚀得到控制