循环冷却水中磷酸盐及其总磷的快速测定

本文用磷钼蓝比色法测定工业循环冷却水中的磷含量，并对测定条件进行了优选。该方法操作简便，准确可靠，适用于一般的磷系水处理循环水中磷的测定。     

Pt/TiO_2光催化制氢的初步研究

对无氧条件下Pt/TiO_2光催化重整甲醇制氢的基本步骤进行简化,在同一体系中进行了光催化剂的合成和光催化制氢的两步反应。基于正交设计法对该复杂体系进行了分析,得到Pt载量、甲醇/水体积、灯距、前反应时间这4种影响因素的3个不同水平对放氢速率的影响。确定了最佳实验条件为Pt载量0.5％(mol)、甲醇/水体积比5:1、灯距12 cm、前反应时间3h。分析结果表明,Pt载量对放氢速率的影响最大。实验获得的最高放氢速率为5.84 ml·h~(-1)·g~(-1)。     

聚苯乙烯／聚乙烯塑料合金的研究

以氢化SBS(SEBS)为相容剂,对聚苯乙烯/聚乙烯塑料合金进行了研究,着重讨论了体系中组成、相容剂含量、PS分子量以及合金制备条件对合金结构与性能的影响。     

一种道路车辆监控视频中的关键帧提取方法

针对道路监控视频中特定车辆图像序列的关键帧提取问题,在运动对象检测的基础上,提出一种关键帧提取方法。将积分通道特征和面积特征作为图像特征描述子,结合Ada Boost训练分类器,实现道路监控视频车辆序列图像中关键帧的提取。通过运动对象前景检测技术获得出现在监控区域的运动车辆最小外接矩形图像序列,选择满足监控分析需求(车牌清晰度高,能判断车型)的若干帧作为正样本,其他不满足监控分析需求的作为负样本,提取样本图像的面积特征和积分通道特征,利用Ada Boost方法训练得到一个分类器,使用Ada Boost分类器对测试样本进行分类,根据打分规则提取关键帧。实验结果表明,该方法能提取运动车辆从进入到离开监控区域的序列图像帧中最清晰的图像,实现道路车辆监控视频分析数据的有效压缩。     

合成氨双甲精制工艺副产双甲燃料应用实践

总结了合成氨双甲精制新工艺的实际应用情况，着重阐述其工艺流程，设备，工艺指标，安全，特点，效益。旨在从实践的角度察看其理论的成熟性与合理性，促进双甲工艺在八成氨生产中的广泛应用，创造更好的社会效益和与经济效益。     

流化床技术在提高尿素产品质量中的应用

应用尿素流化床装置有效解决了因造粒塔能力不足而造成的成品尿素温度偏高、粉尘含量较高、平均粒径偏小、存放易结块等问题，并且具有良好的经济效益。     

In situ composite of nano SiO2-P(VDF-HFP) porous polymer electrolytes for Li-ion batteries

Nano SiO₂-P(VDF-HFP) composite porous membranes were prepared as the matrix of porous polymer electrolytes through in situ composite method based on hydrolysis of tetraethoxysilane and phase inversion. SEM, TEM, DSC and AC impedance analysis were carried out. It is found that the in situ prepared nano silica was homogeneously dispersed in the polymeric matrix, enhanced conductivity and electrochemical stability of porous polymer electrolytes, and improved the stability of the electrolytes against lithium metal electrodes. The in situ composite method was found to be much better than the direct composite method in lowering the interfacial resistance between electrolyte and lithium metal electrode. Moreover, cycle test of lithium batteries using lithium metal as anode and sulfur composite material as cathode showed that the electrolyte based on in situ composite of silica presented stable charge-discharge behavior and little capacity loss of battery.     

Mn2+、Nb5+共掺BaTiO3陶瓷的制备及压电性能的研究

本文采用改进的固相反应法,制备了施主杂质Nb5 和受主杂质Mn2 共掺的BaTiO3陶瓷。按不同Nb5 、Mn2 的掺杂量,分别在1180℃、1210℃、1250℃、1280℃温度下煅烧。实验结果表明:当烧结温度为1250℃、掺杂量为0.05mol%时,制得的试样性能较好。     

实验室RIM机的开发

介绍本所试制的一台实验室用反应注射成型机（RIM0）的主要结构、性能。     

Preparation and characterization of antibacterial silver-dispersed activated carbon aerogels

Silver-dispersed carbon aerogels (CAs) were obtained by direct immersion of organic aerogels prepared by ambient pressure drying technique in AgNO₃ aqueous solution and then carbonization. The effect of preparation conditions such as the resorcinol/catalyst ratio, the feed AgNO₃ concentration, the ratio of aerogel mass/solution volume, immersion time and carbonization temperature on the bulk density and silver content as well as the BET surface area of the dispersed CAs was studied. The dispersion and structure of silver nanoparticles in obtained materials were investigated by means of scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The Ag-dispersed CAs prepared exhibit strong and long-term antibacterial activity.