高水固结尾砂充填采矿充填体合理配比的研究

高水固结尾砂充填采矿是一种新型充填采矿法。试验测定了高水固结尾矿充填体的强度和变形特征；研究分析了影响充填体强度的主要因素、高水充填工艺的特殊要求，以及上向，下向进路开采对充填体强度和稳定性的要求，提出了满足支护强度，工艺及经济需求的充填材料的合理配比范围。     

SBR工艺污泥膨胀的纠正方法

在对国内外有关资料的研究基础上，介绍了几种应对SBR反应池内污泥膨胀的措施。着重叙述了氯化法和无机合成絮凝剂法的应用注意点及如何定量运用这两种方法，同时给出了相应的工程实例。     

Off-Optimum Cure of Aerospace Epoxy Adhesives

Four epoxy film adhesives used in aircraft manufacture and repair have been examined to establish the effect of deviation from the cure cycle specified by the manufacturer. In addition to the variation of the cure cycle, two surface preparations of the aluminium adherends (chromic acid etch or grit blast followed by silane treatment) were evaluated. Thermal analysis was used to examine the cure envelope of the adhesive, and its extent of cure and glass transition temperature. The adhesive properties were assessed by shear strength (in both single lap joints and in Iosipescu configuration), durability (Boeing wedge test) and chemical resistance to selected aggressive fluids. The sensitivity of the performance of a particular adhesive to offoptimum cure conditions depends on its composition and needs to be determined, not predicted.     

Asymmetric alumina membranes electrochemically formed in oxalic acid solution

Alumina membranes were fabricated by anodizing aluminium metal in 0.15 M oxalic acid. The growth kinetics of the porous layer were investigated in the temperature range –1 to 16 °C using linear potential scans up to 70 V. The faradaic efficiencies of metal oxidation and of porous layer formation, determined by applying Faraday's law, were found to be independent of both temperature and electrical charge. SEM analysis of the metal-side and solution-side surfaces revealed different morphologies. After dissolution of the barrier layer in phosphoric acid, the metal-side surface showed circular pores whose size of about 90 nm was found to be uniform and independent of temperature. The pore population was also practically independent of temperature and a value of about 4 × 10¹³ pores m^–2 was determined. On the solution-side surface the presence of a deposit partially occluding the mouths of pores was observed. This coating could be removed by chemical etching in NaOH or thermal treatment at 870 °C, where decomposition of oxalate occurs. This supports the hypothesis that the deposit consists of an aluminium salt containing oxalate anions precipitated from the solution. The results show that it is possible to control the morphological characteristics of the anodic alumina membranes by careful choice of experimental conditions.     

超高纯铜的制备方法和应用

简要介绍了超高纯铜(UHPC)的几种精炼方法，以及它在工业方面的应用。并对超高纯铜的研究开发趋势及应用前景进行了展望。     

喷气纺的条子制备

新纺纱系统的研制开发与传统纺纱工艺的进一步发展都需要对技术要求和经济效果进行反复准确的分析。由于喷气纺的推广，尤其是在美国的推广使用，Rieter公司对此工艺的原材料的最佳准备状态进行了研究。本文即为Rieter公司纺织技术专家所完成的这方面大量研究工作的一个概述。     

阳离子型聚丙烯酰胺絮凝剂的开发与应用

阳离子型聚丙烯酰胺具有许多优点，极具开发研究价值，是重要的高分子絮凝剂。介绍了阳离子型聚丙烯酰胺絮凝剂的制备方法，应用及其絮凝作用机理，并分析了其发展方向。     

胶体五氧化二锑研究现状及发展方向

对胶体五乳化二锑的研究现状进行了回顾，详细概述了胶体五乳化二锑的各种制备方法及其特点和适用范围，讨论了两种成胶理论。针对目前存在的问题，对胶体五乳化二锑的研究方向及研究重点提出了几点建议。     

Preparation of flat-polished specimens for SEM-backscattered electron imaging and X-ray microanalysis—importance of epoxy impregnation

Representative and quantitative microstructural information of cement-based materials can be obtained in the backscattered electron and X-ray modes of the scanning electron microscope (SEM). One prerequisite, of several, is to use flat specimens. Microstructures that are minimally affected by the grinding and polishing necessary to produce the flat surface can be obtained. It is essential to fill the pores of the specimen with epoxy resin prior to grinding and polishing. After hardening, the epoxy stabilizes the microstructure and enables it to withstand the stresses of grinding and polishing without alteration. In the present paper, we describe a preparation technique that we consider to have produced excellent polished specimens. The importance of epoxy impregnation is demonstrated.     

A strategy for integrating product conceptualization and bid preparation

Collaboration with other members of the supply chain is one means by which small and medium sized enterprises (SMEs) can compete in today’s global business environment. Thus, early stages of the new product development process involve both technical activities, e.g., product platform definition, and commercial activities, e.g., bidding for contracts. This paper introduces an integrated collaborative bidding and design system (CBDS) to help SMEs coordinate the two aspects. General sorting was employed for initial requirements acquisition and platform definition; while a self-organizing map (SOM) neural network was combined with a concurrent cost-schedule estimation strategy for refinement of design options and bid evaluation/preparation. A case study on cellular phone design was then applied for illustrating the proposed prototype system.