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1.
通过对解放碑商业中心区1991-2000年环境噪声监测结果的分析评价,比较了十年均噪声的时间分布污染和1998-2000年的季平均噪声的时间分布污染状况,得出该商业地区噪声污染在昼间15:00-17:00最高,夜间在4:00左右最低;四季中,秋季的昼间噪声最高,冬季的夜间的噪声最低,其昼间噪声的波动幅度也较小,与人群的社会行为活动密切相关。 相似文献
2.
It has been shown that the potential for environmental, and financial improvements through the increased substitution of in-person meetings by virtual communication is considerable. However, it has also been shown that this potential is not automatically realized by investing in the technology that can enable virtual meetings. This paper describes two case studies that explored the factors that influenced communication and meeting behavior. A number of drivers and barriers for virtual meetings are identified, and, in addition, measures are proposed to improve the utilization of virtual tools for business communication. 相似文献
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S. Keerthinarayana M. Bandyopadhyay 《Journal of environmental science and health. Part. B》2013,48(5):673-700
Abstract The wood charcoal treated by 1N HNO3 (WCT) was used to remove toxic chlorinated pesticide lindane (y‐HCH) residue from water by the sorption process. Using a simple first order reversible kinetics constants and half time equations, the film and pore diffusion coefficients were determined. Film diffusion was found to be rate limiting step in sorbing lindane by WCT. This was further authenticated by kinetics studies at different initial sorbate concentrations, different sorbent sizes, and different agitation speeds besides interruption test. A pore diffusion model was used to fit the data of kinetics in continuously mixed batch reactors (CMBR), and the tortuosity, external resistance, and surface diffusion effects on lindane sorption by WCT were noticed. The tortuosity values of 15 to 28 were obtained for WCT‐lindane system. 相似文献
5.
试论煤矿井下快速断电安全技术 总被引:7,自引:4,他引:3
论述了煤矿井下漏电保护和短路保护装置的现状和实施快速断电安全技术的必要性;介绍了煤矿快速断电安全技术的发展水平;对快速断电安全技术中的几个问题进行了探讨;提出了可行的缩短故障取样时间技术方案 相似文献
6.
《Environmental Hazards》2013,12(2):59-61
Abstract This paper examines the impacts of the February, 2001, Nisqually earthquake on businesses. Focusing on two hard-hit business districts in Seattle, the study investigates the extent of losses, patterns of disparities, and underlying loss factors. A conceptual framework is proposed of how business vulnerability dimensions contribute to disaster loss. Interviews were conducted with owners and managers of 107 businesses. Data were gathered on impacts, methods of finance, and disaster preparedness. Results showed that business losses were much greater than what standard statistical data would imply. Analysis found that a composite index of vulnerability—based on business sector, size, and building occupancy tenure—provides a very powerful predictor of business loss. Physical damage was a much weaker predictor of loss. Moreover, business recovery was influenced not only by characteristics of the business itself, but also by conditions in the neighborhood. 相似文献
7.
项目教学法是教师为主导,学生为主体,项目为载体,任务为驱动,以职业能力培养为目标,以社会需求为背景的系统的教学方法。以中国环境管理干部学院为例,通过讲述项目教学法的特点及在实践教学中的应用原则,提出了项目教学法在学院商务英语谈判课堂上进行的步骤、遇到的困难,并提出了相应的改进措施。 相似文献
8.
Impacts on industry of Europe's emerging chemicals policy REACh 总被引:1,自引:0,他引:1
For Europe, a new regime in chemicals regulation is about to start. After the proposal of the European Commission concerning the Registration, Evaluation and Authorization of Chemicals (REACh) passed its readings in the European Parliament and some differences with the European Council of Ministers were resolved, the regulation will come into force in June 2007. This paper is focused on the question how serious the cost burdens for industry induced by REACh will be, and whether the New European Member States (NMS) which joined the European Union in May 2004 will be able to cope with the regulation. This evaluation has been done by assessing the legislative, administrative and economic framework in New Member States and by analysing real business cases in companies. The empirical showcase business impact studies are at the same time of interest for companies of EU-15 states, other European countries who may implement the regulation, and even for exporters of raw materials and chemicals outside Europe, who will also have to comply with REACh if they market in the European Community. The results give no indications that REACh adoption will bring significant drawbacks to companies in the NMS. The emerging regulation will bring challenges for individual companies, especially for small and medium-sized ones, but for the European chemical industry as a whole, there is no question that it will be able to cope with REACh burdens without losing its global competitiveness. 相似文献
9.
环保资产评估是石化企业资产评估的重要组成部分,涉及资产所有者、经营者和使用者的合法权益,应当加以关注。借鉴现有资产评估的方法,提出了企业资产交易活动中有关环保资产评估的几个基本概念、主要内容、原则、范围、方法和标准,并做了简要说明。 相似文献
10.
以建立量化控制指标和重点管理为手段,研究炭尘重点点源排放规律,从强化污染源管理入手实行全过程控制以实现污染物排放总量控制。 相似文献