俄罗斯BК1675И的应用研究

对俄罗斯ＢＫ－１６７５Ｎ部分和全部替代ＪＳＲ２６８或ＰＢ３０１应用于ＩＩＲ内胎配方中进行了小料，大料和试产试验。结果表明，俄罗斯ＢＫ－１６７５Ｎ再生胶、ＥＰＤＭ并用，通过使用均相剂Ｍ和Ｔ解决胶相分散问题，同时设法提高混混炼胶的强度，解决内胎接头性能差，易折薄，压伤等问题。     

京津唐地区城市化对植被物候的影响研究

城市化过程使得土地利用、地表植被覆盖发生着显著的变化,如何定量化描述城市化对植被物候的影响越来越受到各方的关注。基于京津唐地区2001~2006年NDVI时间序列影像,得出了京津唐地区植被物候空间分布格局,计算出北京、天津、唐山3个核心城市城区的距离变量与平均植被物候,并分析了城市化对植被物候指标的影响趋势。结果表明:①2001~2006年,北京城市化使得城区及离城区较近的地方植被生长开始时间提前、结束时间推后、生长季周期变长、NDVI振幅减小;②天津和唐山的城市化使得城区及离城区较近的地方植被生长开始时间延后、结束时间提前、生长季周期变短\,NDVI振幅减小;③城市化对植被物候的影响与该地区城市扩张类型存在相关性关系。     

新型混凝土用绿色复合胶凝材料的试验研究

掺入不同比例的粉煤灰、矿粉、天然矿物和活化剂配置C30混凝土(水胶比为0.49),测定了混凝土的坍落度以及7d、28d、60d的抗压强度.通过分析各C30混凝土的性能,确定了复合胶凝材料中粉煤灰的掺量为30%～50%,矿渣的掺量为30%～60%,天然矿物的掺量为5%～10%,活化剂的掺量为5%～10%.     

NO<Subscript><Emphasis Type="Italic">x</Emphasis></Subscript> emission from incineration of organic liquid waste in a circulating fluidized bed

An incineration test of a toxic chemical organic waste liquid was conducted on a circulating fluidized bed (CFB) incinerator. The flue gas was measured online with the advanced SAE-19 flue gas analyzer. The effects of several factors, in terms of flow rate of waste liquid, ratio of waste liquid injected into dense bed of the CFB, excess air coefficient, the secondary air fraction and bed temperature on NO _x emissions, were verified. The experimental results show that NO emissions in flue gas increase with increase in the flow rate of the waste liquid injected into the bed or the excess air coefficient or the bed temperature and those decrease with increase in the ratio of waste liquid injected into the dense bed of the CFB or the secondary air fraction. During the test runs, NO _x concentration in flue gas met the national regulation on NO _x emissions due to suppressive effect of low temperature and staged combustion in CFB on NO _x formation. This paper was presented at the 6 ^th Korea-China Workshop on Clean Energy Technology held at Busan, Korea, July 4–7, 2006.     

聚醚砜的磺化与热性能

以浓硫酸为溶剂 ,氯磺酸为磺化剂对聚醚砜 (PES)进行了磺化 ,制备了不同磺化度的磺化聚醚砜 (SPES)。探讨了反应的影响因素 ,分析了 SPES的热稳定性。结果表明 SPES的 Tg较 PES升高 ,随着磺化度的增加 ,SPES的降解温度降低。     

中国工业清洗行业发展状况

较详细、系统地介绍了我国化学清洗技术、物理清洗技术、生物清洗技术的发展历程及应用情况，阐述了我国工业清洗行业的发展状况，指出了我国工业清洗业面临的问题及对策。     

The electrochemical behavior of cobalt phthalocyanine/platinum as methanol-resistant oxygen-reduction electrocatalysts for DMFC

The electrochemical behavior of cobalt phthalocyanine/platinum as methanol-resistant oxygen-reduction electrocatalyst for DMFC was investigated. Platinum was chemically deposited on the carbon-supported cobalt phthalocyanine (CoPc), and then it was heat-treated in high purity nitrogen at 300 °C, 635 °C and 980 °C. In order to evaluate the electrocatalytic behavior of CoPc-Pt/C, the PtCo/C and Pt/C as reference catalysts were employed. TGA, XRD, EDAX, XPS and electrochemical experiments were used to study the thermal stability, crystal structure, physical characterization and electrochemical behavior of these catalysts. These catalysts exhibited similar electrocatalytic activity for oxygen reaction in 0.5 M H₂SO₄ solution. In methanol tolerance experiments, Pt/C, PtCo/C and CoPc-Pt/C heated at 980 °C were active for the methanol oxidation reaction (MOR). The presence of Co did not improve resistance to methanol poisoning. However, the CoPc-Pt/C after 300 °C or 635 °C heat-treatment demonstrated significant inactivity for MOR, hence they have a good ability to resist methanol poisoning. The current study indicated that the macrocyclic structure of phthalocyanine is the most important factor to improve the methanol tolerance of CoPc-Pt/C as the oxygen-reduction reaction (ORR) electrocatalyst. The CoPc-Pt based catalyst should be a good alternation for oxygen electro-reduction reaction in DMFC.     

螺带式搅拌器在假塑液中的混合及放大的研究

本文综合研究了螺带式搅拌器在假塑性液体中的混合特性及动力特性，测定了双螺带，内外螺带及螺带螺旋３种类型搅拌器的功率常数Ｋｐ和Ｍｅｔａｎｅｒ常数Ｋｓ，并得出混匀操作和传质工艺过程的放大准则。     

结合图像特征的多视拼接数据的消冗处理

在不丢失非重叠区域数据的情况下, 对多视拼接重合区域的三维点云数据进行消冗处理是三维拼接中的一个难题。针对这一难题, 提出了一种结合二维图像信息查找和消除冗余数据的新方法。算法首先查找位于拼接重叠区域的三维点云数据, 结合三维点的K近邻约束和对应像素特征描述的相似度, 对重叠区域的点云数据进行冗余查找和消除。实验表明, 该方法能够准确判断并消除冗余点, 没有造成更改或丢失非重叠区域三维数据点的不良效果, 消冗速度也有所提高。     

基于ECSS平台的板式换热器计算软件

以"面向对象的通用化工流程模拟软件ECSS"为平台,在其原来模块计算父类基础上设计了板式换热器模块计算子类,做出了板式换热器计算的数学模型,开发出了基于ECSS平台的板式换热器计算软件.可以对板片形式为等边三角形波纹板、不等边三角形波纹板、带褶三角形波纹板和不带褶三角形波纹板,流体的流道形式为1/1、1/2、1/3、1/4、2/2、3/3、4/4等流形的板式换热器进行计算.通过实例表明该软件具有较高的精确度,可以应用于实际的工程计算中.