4，4＇－二苯醚二甲酸改性PET的热性能研究

采用示差扫描量热和热重分析的方法对合成的不同４，４＇－二苯醚二甲酸（ＯＢＢＡ）含量的共聚酯的热性能进行了研究。结果发现共聚酯的熔点和热结晶温度与ＰＥＴ相比有所降低；而冷结晶温度则升高。随着ＯＢＢＡ添加量的增加，在恒温热重分析中热失重速率常数减小；在升温热重分析中，热失重活化能则增加。所有的实验结果皆表明，芳族醚键的引入对提高共聚酯的热性能有重要作用。     

An antiphishing strategy based on visual similarity assessment

The authors' proposed antiphishing strategy uses visual characteristics to identify potential phishing sites and measure suspicious pages similarity to actual sites registered with the system. The first of two sequential processes in the SiteWatcher system runs on local email servers and monitors emails for keywords and suspicious URLs. The second process then compares the potential phishing pages against actual pages and assesses visual similarities between them in terms of key regions, page layouts, and overall styles. The approach is designed to be part of an enterprise antiphishing solution.     

潘庄引黄灌区泥沙处理对策探讨

潘庄引黄灌区在多年的引黄泥沙处理利用工作中,探索并总结出一套适合灌区特点的泥沙处理模式,取得了较好的效果。主要针对灌区引黄灌溉中的泥沙处理问题,在综述了灌区泥沙处理和利用的现状和新形势下传统泥沙处理方式所存在问题的基础上,从自然条件、工程条件等方面进行泥沙处理的探讨。     

银矿尾矿砂高强陶粒的研制

以广西凤凰银业有限公司的尾矿砂和废矿页岩为主要原料，在前期工作的基础上，经过实验室试验和生产线中试，成功生产出700～1000密度等级、筒压强度超过10MPa的高强陶粒。这为银矿的尾矿砂和废矿页岩的处理也为我国高强陶粒的生产探索了一条新路。     

Growth and optical property of zinc oxide thornballs

A new microstructure, thornball, of zinc oxide (ZnO) was synthesized by a very simple solid vapor deposition process under lead oxide (PbO) atmosphere. The microthornballs consist of numerous needles, which extend outwards in all directions symmetrically. They have dimensions of 120 μm in diameter, while the average diameter of the needles is about 100-200 nm. The needles on the balls grow along the 〈0 0 0 1〉 orientation and have gradient compositions along radial. Control experiments proved that PbO played an important role in the growth. Additionally, photoluminescence property was observed and provided the evidence that PbO did not deteriorate the optical properties of ZnO thornballs. This kind of microstructures has potential applications in the field of photochemical catalysis.     

柳钢100t转炉冶炼工艺优化实践

通过分析100t转炉冶炼工艺中存在的问题，对冶炼工艺进行优化，提高转炉过程控制能力和一倒炉命中率，结果表明：过程喷溅可降低至9％，冶炼终点命中率提高到63％ 以上。[第一段]     

同步脉冲发生器

本文介绍一种高精度同步脉冲发生器,可用于同时触发多台仪器的测试系统中.其任意两路输出脉冲之间的分散性小于0.5ns.     

Observation and Analysis of Gypsum Particleboard using SEM

The microstructures of gypsum board and gypsum particleboard were observed by SEM. The effects of retarder and waterproof agent on the shape and the average dimension of the gypsum crystal were discussed. The mechanism was investigated as well. Four typical instances, i e, the gypsum crystal shape, the gypsum combined with particles on the particles surface, the gypsum combined with particles on the wood cross section and the gypsum combined with particles inside the wood cell cavity were selected and observed. Furthermore, the agglomeration and cementation mechanism between gypsum and particle were studied.     

模具企业管理信息化

1制造业信息化的意义我国确立了“以信息化带动工业化，发挥后发优势，实现国民经济的跨越式发展”的战略决策，将信息化放到与工业化同样重要的高度，对于推动我国经济的跨越式发展具有重要的意义。信息化和工业化都是推动经济发展的基本方式，是不断从较低级阶段向较高级阶段发展的过程。同时，信息化的发展是建立在工业化基础之上，并能促进工业化的发展。从总体上讲，工业化主要解决生产活动中的动力和机械问题，既解决人的体力不能直接解决的问题，又可将人从繁重的体力劳动中解放出来，俗称“手的延长”。信息化主要解决信息的编码、…