车辆AMT数据采集及分析系统

介绍用于电空机械式自动变速器的数据采集及分析系统，重点介绍系统的工作原理，软、硬件应用设计。下位机以C196单片机为核心，用汇编语言编程，上位机采用PC104，用VB编程。     

DCPD和PET合成不饱和聚酯的研究

探讨了用双环戊二烯和聚对苯二甲酸乙二醇酯废料合成不饱和聚酯树脂的方法：PET用二元醇醇解后，加入顺入烯二酸酐和DCPD，在80－120℃条件下滴加与DCPD等量的水进行反应，反应大约2.5h，加入其它成分，升温酯化直至反应完全。PET一定时，DCPD的含量影响不饱和聚酯同苯乙烯的互溶性和固化过程，DCPD和PET合成的不饱和聚酯树脂与标准树脂相比较，机械性能好，空干性好，解决了环境污染，具有很好的经济效益。     

苯磺隆干悬浮剂技术浅析

通过对苯磺隆干悬浮剂项目的研究,进一步了解干悬浮剂的加工工艺和配方中各种助剂的相互作用;剖析助剂对主要技术指标的影响。     

A STUDY ON ACIDITY AND CATALYTIC PROPERTY OF [B] ZSM-5 CATALYST MODIFIED WITH SILICON COMPOUND BY CHEMICAL SURFACE DEPOSITION OF LIQUID-PHASE TECHNIQUE

The boron heteroatom zeolite catalyst has been modified with silicon compound by Chemical Surface Deposition of Liquid-phase (CLD) technique and the catalytic property of the modified catalyst is studied. Meanwhile, the acidity of the modified zeolite catalysts is characterized through TPD and IR technique, and the fluid adsorption method is used to determine its pore structure. The relationship between the catalytic property of the zeolite catalyst and its pore structure, its acidity has been found. The results of toluene-ethylene alkylation reaction indicate that the selectivity of p-ethyltoluene on the modified zeolite catalyst is higher than that on the zeolite catalyst before silanizated, reaching 94.14%.     

中国石油未来油气勘探重点领域分析

根据近几年来的研究认识与勘探成果分析,未来几年中国石油油气勘探主要集中于如下五大重点领域:大面积低渗透岩性油气藏、成熟区复杂隐蔽油气藏、前陆盆地复杂构造油气藏、海相碳酸盐岩油气藏和渤海湾滩海第三系油气藏。     

Nondestructive evaluation of the characteristics of degraded materials using backward radiated ultrasound

The frequency dependency of Rayleigh surface wave is investigated indirectly by measuring the angular dependency of the backward radiation of the incident ultrasonic wave in two kinds of degraded specimens by scuffing or corrosion. Then, the frequency dependency is compared with the residual stress distribution or the corrosion-fatigue characteristics for the scuffed or corroded specimens, respectively. The width of the backward radiation profile increases with the increase of the variation in residual stress distribution for the scuffed specimens. In the corroded specimens, the profile width decreases with the increase of the effective aging layer thickness and is inversely proportional to the exponent, m, in the Paris’ law that can predict the crack size increase due to fatigue. The result observed in this study demonstrates high potential of backward radiated ultrasound as a tool for nondestructive evaluation of subsurface gradient of material degradation generated by scuffing or corrosion.     

长距离油、气、水混输管道内壁流动腐蚀的研究进展

就近几十年来，多相流管线的流动腐蚀（CO2腐蚀，H2S腐蚀，腐蚀/冲蚀协同作用），腐蚀/冲蚀数学模型和设计准则，腐蚀检测，腐蚀防护与控制技术等方面的研究进展进行了综述。指出了当前研究中所存在的一些问题，就多相流的研究方向提出了相应的建议。     

混凝土渠道糙率原型观测

糙率是渠道水力设计的关键技术参数之一，其值的准确选取决于已建工程原型观测成果的类比。选择3条不同衬砌特性的混凝土渠道进行糙率原型观测，对观测方法及步骤做了较详细描述；计算出了3条渠道的糙率，对其存在误差进行了分析探讨，可为今后进一步开展相关课题研究积累经验并供同行参考。     

啤酒酵母菌种的石蜡保藏技术

啤酒酵母菌种用液体石蜡技术保藏具有设备简单、操作方便,成活率高,变异少,优良种性能保持较长时间的优点,实用价值高。本文从液体石蜡保藏菌种的机理、保藏效果、保藏等具体技术操作及其使用方法都作了较为详细的介绍,相信能为啤酒菌种的保藏带来较大的好处。     

线性二次型最优控制闭环系统极点的必要条件

本文推导了线性二次型（LQ）最优控制闭环系统极点应满足的必要条件，以及与加权阵Q和R的等式关系