A2/O工艺处理焦化废水

本文介绍了采用厌氧-缺氧-好氧生物脱氮工艺(简称A2/O工艺)处理焦化废水的工艺流程及原理,和主要构筑物及运行基本情况,并进行了分析总结。     

高效无毒龙眼保鲜技术

本文研究了龙眼的保鲜技术,经高锰酸钾浸泡处理后的龙眼,再用脱色剂(焦亚硫酸钠+护色剂)溶液漂白,漂白时间明显缩短,漂白效果好,保鲜时间长。     

基于SSH2的高校跳蚤网的设计与实现

针对高校大学生对网上二手交易平台的迫切需求,开发并实施了基于SSH2的高校跳蚤网,介绍了系统开发实现的过程。该系统结合了大学生的需求特点,形成了具有大学生特色的跳蚤网站。     

基于web2.0的知识共享研究综述

随着知识经济的到来,知识已经成为企业最重要的资产。知识若被共享,双方所获得的资讯和经验都会呈线性增长,不管是在员工层面或是组织层面都需要广泛的知识共享。目前,传统的知识共享系统已经无法满足企业的需求,web2.0的出现给知识共享带来了新的契机。本文对现有的基于web2.0的知识共享的研究进行整理归纳,介绍目前对基于web2.0的知识共享的主要成果。     

动态助词“过”的语法化历程

动态助词"过"一般分为"过1"和其中"过2","过1"表示动作的完结,"过2"表示曾然。其语法化历程为:一般动词"过"→趋向动词"过"→动态助词"过1"→动态助词"过2"。动态助词"过1"和"过2"的演变又可分别区分为两个阶段,即演变发生和演变扩散。就形成机制而言,"过1"的产生主要是受隐喻、类推以及重新分析的作用,趋向动词"过"的形成是"过1"产生的关键;而"过2"是"过1"吸收了助词"来"及其经常出现的句法环境的语法意义而产生的,可以说是"过1"在特殊语境下的产物。     

浅析基于B2B模式的电子商务的发展

电子商务是指以互联网为整体架构,网络交易为主要内容,交易双方为主体,网上支付为手段,网络客户数据库为依托的全新的商务运作模式.我们着重分析基于B2B模式的电子商务在未来的巨大发展前景.     

Stochastic convergence of the catch-up rate and multiple structural breaks in Asian countries

Allowing for multiple structural breaks and cross-section dependence, we re-investigate the hypothesis that the catch-up rates stochastically converge for 13 Asian countries from 1960 to 2007. Non-rejection of stationarity provides evidence for stochastic convergence, implying that following shocks to the catch-up rate, it will eventually revert to its long-run level.     

ECB repo rate setting during the financial crisis

I estimate a reaction function for the ECB using an ordered logit model for the period 1999-2009. Allowing for a smooth transition from one set of parameters to another, I detect a rapid change in the middle of 2008.     

Allocative efficiency measurement with endogenous prices

In the nonparametric measurement of allocative efficiency, output prices are fixed. If prices are endogenous, the overall output in the market determines the allocative efficient point. We develop an alternative semi-nonparametric model that allows prices to be endogenously determined.     

Investigating regional house price convergence in the United States: Evidence from a pair-wise approach

In this paper we examine long-run house price convergence across US states using a novel econometric approach advocated by Pesaran (2007) and Pesaran et al. (2009). Our empirical modelling strategy employs a probabilistic test statistic for convergence based on the percentage of unit root rejections among all state house price differentials. Using a sieve bootstrap procedure, we construct confidence intervals and find evidence in favour of convergence. We also conclude that speed of adjustment towards long-run equilibrium is inversely related to distance.