外汇交易中的不当得利——由计算机故障而引起的债的关系

2002年7月21日《齐鲁晚报》刊登题为《“狂赚”30万美元该归谁》的文章，说的是武汉十余名汇民在银行外汇报价系统出故障的7分钟里，意外赚得30万美元，但被银行单方面划走，双方为此对簿公堂。     

我国印刷机械出口状况分析

2004年我国国民经济继续快速增长,GDP 增长率达到9.5%,取得了宏观调控和经济健康发展的好形势。进出口也取得高速增长,进出口总额达到1.1万亿美元,进口和出口双双超过5000亿美元,出口额保持一定的顺差。在出口的商品中,机电产品的出口额已经占出口总额的54.45,出口的产品结构发生重大变化,一大批出口型企     

Link analysis: Hyperlink patterns and social structure on politicians’ Web sites in South Korea

This paper presents results of an investigation into political communication expressed by links connecting politicians’ web sites with the sites of other political actors in South Korea. Additionally, this study examines whether a set of socio-demographic variables for web site producers is associated with linking behavior. Both traditional methods and social network analytical techniques are employed to investigate linking patterns between sites. Perhaps unsurprisingly, members of the South Korean National Assembly linked most to party web sites, and linking patterns did not change between 2003 and 2004. Out of a range of demographic variables investigated, the only ones that related significantly to linking practices were party affiliations and friendship networks.     

不同温度下异波折板反应器处理生活污水的研究

本实验采用64.8L的厌氧异波折流板反应器处理生活污水,研究了低温对异波折流板反应器运行效能的影响。结果表明,温度从30℃降至20℃反应器运行15d达到稳定后,COD去除率仅从83.6%下降至76.9%。各隔室的VFA浓度均有所上升,前面隔室升幅较大,比甲烷活性略有下降;当温度从20℃下降至10℃时,产氢产乙酸菌和产甲烷菌等受到较大影响,在反应器运行达到稳定后COD去除率从76.9%下降至45%～55%,出水水质受影响较大,比甲烷活性下降幅度较大。     

现代物流业发展、比较竞争优势与区域经济竞争力

一、现代物流业的概念、内涵及其组成现代物流业是社会经济发展到一定阶段的产物,是在现代信息技术和互联网发展基础上,通过运输、仓储等若干传统产业相互融合形成的一种新型的产业形态。它突破了传统物流产业的技术边界、业务边界和市场边界,是对运输业、仓储业等传统产业边界固定化及相互间产业分立的根本否定,它不是几个传统产业的简单相加,而是通过相互作用融为一体,显示出新的产业属性,是一种新的产业革命。现代物流业发展中的产业融合不是一种偶然的经济行为,而是一种伴随社会经济发展、市场环境变化和信息技术发展等因素相互作用、相…     

那一片明媚的海

海是大自然赐给市南的最珍贵的礼物，也是青岛人最引以为豪的骄傲。青岛人会自豪地告诉你：世界上最美的海湾，在这里!     

Ownership Reform,Foreign Competition and Efficiency of Chinese Commercial Banks: A Non‐parametric Approach

Since China joined the World Trade Organization in 2001, the pressure for bank reforms has mounted as China ought to have fully opened up its financial market to foreign competition by 2006. Efficiency is key for domestic banks to survive in a liberalised environment, but it appears that the last hope for raising bank efficiency is through ownership reform. Whether ownership reform and foreign competition can solve China's banking problem remains to be tested. This paper aims to answer this question using a non‐parametric approach to analyse the efficiency changes of 15 large commercial banks during 1998–2005. We find that ownership reform and foreign competition have forced Chinese commercial banks to improve performance, as their total factor productivity rose by 5.6 per cent per annum. This coincides with the recent bullish Chinese stock markets led by three listed state‐owned commercial banks. Despite such encouraging results, we remain cautious about the future of Chinese banks, as the good results may have been artificially created with massive government support and the fundamentals of the banks may be still weak.     

Grafting, metham sodium, soil solarization and virtually impermeable films as alternative technologies to methyl bromide for Chinese protected tomatoes

In the frame of the Sino-ltalian Cooperation Program for Environmental Protection, jointly launched in the year 2000 by the Italian Ministry for Environment and Territory and Sea （IMETS） and the China State Environmental Protection Administration （SEPA）, experimental trials were carried out in Qingzhou city （Shandong Province, China） during 2001-2003 to test several methyl bromide alternative methods to control soilborne diseases in greenhouse tomatoes. Grafting tomatoes on resistant rootstock （Lyeopersicon lycopersicum × L. hirsutum）, metham sodium applied under traditional polyethylene plastic films; metham sodium applied at low rate under virtually impermeable films and soil sotarization combined with biocontrol agents were the alternatives tested and compared to methyl bromide applied under virtually impermeable plastic films too. Collected data show that resistant rootstock （Lycopersicon tycopersicum × L. hirsutum） introduced from Italy is a promising alternative to methyl bromide for local tomato cultivars. Metham sodium applied under traditional polyethylene plastic films is an effective alternative. Moreovez virtually impermeable films demonstrate the help to reduce methyl bromide and metham sodium rates. Finally soil solarization combined with biocontrol agents does not provide satisfactory results in terms of disease control.     

Natural estimation of variances in a general finite discrete spectrum linear regression model

The method of “natural” estimation of variances in a general (orthogonal or nonorthogonal) finite discrete spectrum linear regression model of time series is suggested. Using geometrical language of the theory of projectors a form and properties of the estimators are investigated. Obtained results show that in describing the first and second moment properties of the new estimators the central role plays a matrix known in linear algebra as the Schur complement. Illustrative examples with particular regressors demonstrate direct applications of the results.     

新型铁路客站设计建设的实践与探索

铁路客站的设计建设是一项复杂的系统工程,需要广大设计建设者在实践中不断地思考探索.根据近年来参与多项大型站房方案论证、亲历建设过程的实践体会,对设计建设中经常遇到的有关问题做了归类总结,提出建议意见,并对未来客站建设模式做了探索.