Recent advances in catalytic decomposition of ozone

Ozone (O₃), as a harmful air pollutant, has been of wide concern. Safe, efficient, and economical O₃ removal methods urgently need to be developed. Catalytic decomposition is the most promising method for O₃ removal, especially at room temperature or even subzero temperatures. Great efforts have been made to develop high-efficiency catalysts for O₃ decomposition that can operate at low temperatures, high space velocity and high humidity. First, this review describes the general reaction mechanism of O₃ decomposition on noble metal and transition metal oxide catalysts. Then, progress on the O₃ decomposition performance of various catalysts in the past 30 years is summarized in detail. The main focus is the O₃ decomposition performance of manganese oxides, which are divided into supported manganese oxides and non-supported manganese oxides. Methods to improve the activity, stability, and humidity resistance of manganese oxide catalysts for O₃ decomposition are also summarized. The deactivation mechanisms of manganese oxides under dry and humid conditions are discussed. The O₃ decomposition performance of monolithic catalysts is also summarized from the perspective of industrial applications. Finally, the future development directions and prospects of O₃ catalytic decomposition technology are put forward.     

电除尘器效率考核问题试验研究与思考

分析了煤种含硫量、灰份及粉尘化学组成对除尘效率的影响，研究了电除尘器效率考核存在的问题，提出了校核除尘效率的方法，并结合生产实际进行了核算。     

网上职业安全教育培训刍议

通过对网上培训的介绍及网上教育系统的分析，提出了网上安全培训系统的发展方向，对网上职业安全教育培训系统建立和实现形式提出了看法。     

安全工程专业本科教育培养模式的探讨

本文分析了当前安全工程专业本科教育存在的一些问题，如本科基础知识教育欠系统和规范，知识结构的行业限制性过重，课程设置不甚合理等，这些问题对培养高素质安全科学人才及本专业自身的发展不利，笔者就合理的培养模式作了探讨，提出本科教育应有明确的目标，业务能力应有具体要求，专业知识结构应划分为四个层次。     

Ethical and legal implications in IVF and prenatal diagnosis in the U.K.

The natural desire for couples to be parents and the medical practitioner's inability to treat most genetic diseases have been responsible for some of the most exciting research into infertility and genetic disorders. This has led in the United Kingdom to the establishment of the Warnock Committee of Inquiry into Human Fertilization and its report in 1984, and to a Review of the guidance on Research Use of Fetuses and Fetal Material published in 1989 and known as the Polkinghorne Report. The Warnock Report, among other ethical issues, considers the most fundamental question which has been debated for thousands of years, namely, What is life and when does it begin? More recently, the report has been responsible for new legislation which imposes ethical and legal restrictions on the scientific and medical community. The Polkinghorne Report recommends a voluntary code of practice which is morally and ethically acceptable within our society. We are also fortunate in the U.K. to have a parliamentary structure which allows debate on such important human issues and is prepared to impose ethical restrictions.     

油田行业"三废"综合利用研究

介绍了国家“三废”综合利用方面的政策，结合油田行业资源综合利用现状，提出如何进一步开展油田行业“三废”综合利用工作，并更好地利用国家资源利用税收方面的优惠政策，开拓油田行业“三废”综合利用渠道，推动“三废”综合利用，争取得到最大限度的减免税额。     

内电解法处理染料废水的研究进展

综述了内电解法处理染料废水的现状，对该方法的作用机理、应用实例、工艺改进方面的研究进行了介绍，并分析了该方法的优缺点及其今后的发展方向。     

沈阳发展循环经济初探

通过分析循环经济在沈阳发展的意义 ,提出沈阳发展循环经济的初步设想 ,为创建循环经济示范城市提供初始框架。     

Biodiversity and industry ecosystem management

The term biodiversity describes the array of interacting, genetically distinct populations and species in a region, the communities they comprise, and the variety of ecosystems of which they are functioning parts. Ecosystem health, a closely related concept, is described in terms of a process identifying biological indicators, end points, and values. The decline of populations or species, an accelerating trend worldwide, can lead to simplification of ecosystem processes, thus threatening the stability and sustainability of ecosystem services directly relevant to human welfare in the chain of economic and ecological relationships. The challenge of addressing issues of such enormous scope and complexity has highlighted the limitations of ecology-as-science. Additionally, biosphere-scale conflicts seem to lie beyond the scope of conventional economics, leading to differences of opinion about the commodity value of biodiversity and of the services that intact ecosystems provide. In the face of these uncertainties, many scientists and economists have adopted principles that clearly assign burdens of proof to those who would promote the loss of biodiversity and that also establish near-trump (preeminent) status for ecological integrity. Electric utility facilities and operations impact biodiversity whenever construction, operation, or maintenance of generation, delivery, and support facilities alters landscapes and habitats and thereby impacts species. Although industry is accustomed to dealing with broad environmental concerns (such as global warming or acid rain), the biodiversity issue invokes hemisphere-wide, regional, local, and site-specific concerns all at the same time. Industry can proactively address these issues of scope and scale in two main ways: first, by aligning strategically with the broad research agenda put forth by informed scientists and institutions; and second, by supporting focused management processes whose results will contribute incrementally to the broader agenda of rebuilding or maintaining biodiversity.     

Counter-disaster training in developing countries

This paper discusses both the need for training within a wider context of community disaster preparedness and the major alternatives in methods of training. Emphasis is placed on the importance of compatibility between the resources within a given country and appropriate training programmes.