VSP旅行时反演应用于VSP—CDP转换

非零偏移距垂直地震剖面(VSP)模型的制作是非零偏移距VSP资料处理的关键环节之一,是VSP-CDP转换的基础。本文试用旅行时反演修正非零偏移距VSP的模型,以加速模型的制作过程,提高非零偏移距VSP的处理速度。用合成VSP资料试算表明:旅行时的随机误差对模型的制作影响不大;只要能较准确地确定界面位置,用旅行时反演修改制作非零偏移VSP模型是可行的。本文还探讨了初始模型的不同选择方法,并将旅行时反演用于实际VSP资料的处理。结果表明,大大地节省了非零偏移距VSP资料的处理时间。     

某含砷浮选金精矿的细菌氧化预处理-氰化提金试验研究

云南省某含砷难浸金精矿，常规氰化金浸出率仅为26．17％，通过采用细菌氧化预处理后，金浸出率达到98．25％，获得了非常理想的试验指标。     

Fuzzy-Fusion Classifier for MMV Full-Polarization Radar Target Recognition Using One-Dimensional Scattering Centers

One-dimensional (1-D) scattering centers on a target can be used for radar target recognition purpose. In this paper, a new classifier based on fuzzy techniques is proposed, which is very much suitable for target recognition using 1-D scattering centers. Furthermore, information fusion techniques for full polarimetric receiver data are utilized at the decision level. The performance of the proposed fuzzy-fusion classifier is evaluated using a dataset of five aircraft models measured by millimeter-wave (MMW) full-polarization stepped-frequency radar in the compact range facility.     

旧工业建筑的再利用

旧工业建筑与其他旧建筑物相比,具有建筑主体结构坚固,空间高大灵活;体量大,拆除或新建对环境造成的影响大;具有其独特的设计理念和美学价值等特点,从而成为旧建筑再利用过程中一种重要的建筑类型。 本文通过对101厂房再利用案例设计过程的分析,对旧工业建筑再利用的目标、更新程序、方式、策略等方面进行具有可操作性和推广性的探索。     

乙醇电氧化的研究进展

简要地叙述了国内外乙醇电催化氧化的研究进展，着重介绍不同电极材料对乙醇电氧化的影响及目前所提山的机理，并对其可能的研究方向提出了建议。     

The use of doped polyaniline as an electrode in the galvanic anodic protection of ferrous metals in industrial acid solutions

In order to investigate the galvanic anodic protection (GAP) of ferrous metals (such as 410, 304 and 316 stainless steels) in acid solutions by doped polyaniline (PANi), separate doped PANi powder-pressed electrodes with different surface areas (the area ratio of the PANi electrode to stainless steel is between 1:1 and 1:2) have been prepared. These were coupled with ferrous metal in the following solutions: 5 M sulphuric acid, 5 M phosphoric acid and industrial phosphoric acid (containing 5 M phosphoric acid and 0.05% chloride ion) to construct a galvanic cell, in which PANi is cathode while ferrous metal is anode. The results indicate that a PANi electrode with sufficient area can provide corrosion protection to stainless steel in these acidic solutions. A pilot scale coupling experiment was carried out. The results indicate that PANi is a promising material as an electrode for the anodic protection of ferrous metals in acidic solutions in industrial situations.     

SNCP环带链的组网与维护

在实际传输网络结构中,有些站点由于条件限制不能与其它站点连接成环.过去采用通道保护(PP)环带链组网,环链网元间业务在环上没有保护;随着技术的发展,提出了子网连接保护(SNCP)环带链组网方式,确保环链网元间业务在环上得到保护,使网络的稳定性和可靠性大大提高.     

MGD工艺技术的特点

应炼油厂要求，FCC既要多产柴油，又需多产液化气，石油化工科学研究院开发了MGD工艺。该工工艺遵循催化裂化的反应机理，把分段进料和汽油回炼紧密组合为一个体系，较好地达到了用掺渣油原料多产柴油和液化气的目的，其汽油烯烃和硫含量降低。从而使炼油厂调合汽油达到产品规格。工艺实施容易，改造投入少、见效快，受到炼油厂欢迎，并迅速推广应用。浅释了MGD工艺的反应机理，并提出了应用中应该注意的问题。     

双螺杆反应挤出模型的研究

详细研究了双螺杆中反应挤出聚合物的动力学模型、流动模型和传热模型。通过实验得到了双螺杆反应器中聚合物的停留时间分布及平均停留时间。