商业财务信息管理系统的设计与实现

结合一个具体的商业财务信息管理系统，着重介绍了系统的设计思想，代码库设计，系统通用性，安全性及其实现。     

雨季开挖深大基坑的成功一例

结合三河发电厂的工程实例，介绍雨季深大基坑开挖施工中采用的降水、坡面防护和土方开挖方法，认为大管井降水在渗透系较小的土层中仍有可用之处；只要降水问题得到解决，坡面防护则可简化。     

机车走行部滚动轴承故障的诊断

阐述了机车走行部滚动轴承的振动机理,分析了轴承故障产生的原因及表现。介绍了应用共振解调技术诊断滚动轴承故障的基本原理及故障判断方法,并列举了一起应用该技术的故障诊断实例。     

对预应力砼箱梁估算指标的修正意见

北方地区河流上的预应力箱梁桥做估算时，套用水中指标极不合理，文章通过对估算，概算，预算主要指标的比较，认为套用干处指标并稍做修正即为合理。     

电喷维修的保障--FAI诊断仪

FAI诊断仪是保证FAI电喷摩托车正常工作的得力工具,是用户与FAI电喷系统相互沟通的桥梁,具有智能化、自动化的特征。诊断仪结构见图1。     

ITS数据管理技术发展趋势分析

ITS数据管理主要就是管理交通流信息的流通，将其存储为有用的形式，然后由最终用户以实时或存档的形式分别利用。     

Kinetics of municipal sewage degradation in EGSB and UASB reactors at 10 ℃

Kinetics of municipal sewage degradation in Expanded Granular Sludge Bed （EGSB） and Up-flow Anaerobic Sludge Blanket （UASB） reactors at 10℃ were investigated via continuous experimental equipments. The results indicated that the whole reaction process can be simulated by the first-order dynamic equation model. Dynamic parameters such as k, Vmax and Ks of UASB in hydrolysis acidification stage were 1.08 d^-1 , 2.8 d^-1 and 372 mg/L comparing to those of 1.18 d^-1 , 3.5 d^-1 and 112 mg/L in the methanogenesis stage respectively. The EGSB＇s k, Vmax and Ks were 2.91 d^-1 , 14.3 d^-1 and 470 mg/L in the hydrolysis acidification stage comparing to those of 1.68 d^-1, 6.6 d^-1 and 103 mg/L in the methanogenesis stage respectively. Comparison of k values of the two stages in UASB and EGSB indicates that hydrolysis acidification stage is the controlling step for the whole reaction process of UASB, while methanogenesis stage is the controlling step in EGSB. Compared with UASB, municipal sewage treatment by EGSB at 10 ℃ can reach the same effluent requirement with lower retention time due to its effluent recirculation.