澳大利亚企业首席执行官与信息技术经理之间观点不一致的实证研究

1.引言 随着企业的不断变革。信息技术(IT)管理问题也变得越来越棘手了。在IT管理中,今天是非常重要的因素,明天可能就变得无足轻重了。另外,各类企业中的商务和IT领域持续以惊人的速度相结合。在这种复杂的环境中,IT的管理已经不再仅仅是IT经理的工作了。许多关于信息技术的决策显然也超出了IT经理的工作范围。有一些关于企业存亡与竞争的关键     

成功的公司必须首先学会管理过程

在过去的50年里,质量工作者努力将质量体系应用于企业,政府和学术领域．但效果不尽如人意。尤其是．人们认为质量控制、全面质量控制,零缺陷和全面质量管理等方法都不奏效．六西格玛也趋于失效。     

资本主义的多样性

概览法国、意大利、荷兰、中国、阿根廷——其贯穿于19世纪的资本主义制度的历史都有其迷人的特别之处,尽管在这篇短文中,我们关注的是英国、美国、德国和日本,这四个国家是有关"莱茵河与盎格鲁—萨克逊资本主义"争论的中心,在其所有简化形式上,这些争论却都涉及到了福利和经济效率的核心问题。     

Membrane treatment of liquid wastes from radiological decontamination operations

The paper focuses on the evaluation of membrane filtration for the treatment of liquid radioactive streams generated in area decontamination operations. In this work, semi-permeable membranes were demonstrated to be effective reducing the volume of wastewater containing cesium and cobalt by two orders of a magnitude. The efficiency of membrane separation was enhanced by employing additives that enlarged the size of target radionuclide species and improved their rejection by the membranes. This was achieved by chelation with synthetic water-soluble polymers and by adsorption on micro particles of adsorbent coupled with micelle formation. The effect of wastewater composition and that of the radionuclide-binding additives on the volume reduction was investigated. Membrane treatment is expected to help simplify further processing and decrease disposal costs.     

Experimental study of a novel hybrid constructed wetland for water reuse and its application in Southern China

A new type of hybrid constructed wetland (CW), consisting of both vertical-baffled flow wetland (VBFW) and horizontal subsurface flow wetland (HSFW), has been deployed in Southern China to naturally accelerate the removal of organic matter and nitrogen. The hybrid CW system is characterised by a combination of continuous baffled flow vertical wetland and 'S' pattern horizontal subsurface flow wetland with natural aeration ditches to increase the concentration of dissolved oxygen in the HSFW bed. An internal circulatory system from the HSFW effluent back to the VBFW may optionally be operated to enhance the biological denitrification effect. Cyperus alternifolius is the main macrophyte in the wetland bed. The performance of the hybrid CW was studied with a pilot-scale system and three full-scale systems for municipal sewage treatment in Southern China. The results suggest that this new hybrid CW can achieve removal efficiencies of chemical oxygen demand, suspended solids, ammonia nitrogen, total nitrogen, and total phosphorus of better than 83.6, 95.0, 71.7, 64.5 and 68.1% respectively, with a specific wetland bed area of 0.70-0.93 m(2) PE(-1). The mean effluent concentrations of these parameters would meet the regulatory discharge limits for wastewater treatment systems (GB18918, 2002) and reuse in the context of agricultural irrigation solutions in China.