脱硫废水处理试验研究

湿法烟气脱硫工艺产生的废水中含有大量污染物 ,严重危害环境和人民的身体健康。试验研究了脱硫废水的处理工艺 ,研究探讨中和沉淀、硫化物沉淀和絮凝沉淀的处理药剂、最佳加药量和反应条件 ;并进行动态模拟试验     

城市污水厂污泥间壁热干燥过程实验研究

分析污水厂污泥间壁热干燥过程的影响因素 ,并确定过程的关键设计参数。研究以间隔实验为基本手段 ,并进行了污泥间壁热干燥过程数学模型的推导。认为 :壁温和泥层厚度是过程的主要影响因素 ,由实验数据确定的过程比总传热系数 K是设计的关键参数 ,在适宜条件 :壁温 16 0℃ ,泥层厚度 1.0 cm时 ,其值为 6 5 .6 (k J/ m2·℃· h)     

人体工程学及其未来

人体工程学在当今世界倍受瞩目,这是历史发展的必然。本文从这门学科的发展历程及它的研究领域展开论述,指出人体工程学的基本思想就是以人为本。随着科技的飞速发展,以人为本已经成为趋势理念,人体工程学已由自然状态走向自觉状态,文中引用很多实例证明了它的应用价值。在可持续发展的未来,人体工程学具有广阔的发展前景。     

当代企业环境文化的塑造

论述了当代企业建设环境文化的必要性,提出了塑造企业环境文化的途径,旨在为企业加强环境文化建设提供可以借鉴的理论依据和建议。     

深圳市排污收费系统的开发与研究

排污收费是环境保护工作中的重要内容,它直接体现了监管的力度和执法的效果。由于这项工作与其他业务部门,如建设项目审批、环境监督、环境监测、环境执法等部门联系密切,因而信息结构复杂。目前在我国投入使用的排污收费管理系统软件大多是FOXPRO数据库,难于实现收费信息共享。基于城市级环境信息管理系统的需求以及目前进行的污染物总量排污收费制度的试点,开发出一套WINDOWS环境采用SYBASE数据库的排污收费管理系统PWSF是十分必要的。      

特种设备应急救援预案的研究

本文分析了特种设备的安全状况、应急救援预案的管理要求和现状,提出了应急救援预案的构成要素及其主要内容,以液化石油气储罐为例阐述了危险源辨识、后果预测以及现场应急处置方法,为企业编制特种设备应急预案提供了参考。     

Using SHRP2 naturalistic driving data to examine driver speeding behavior

Problem: Speeding-related crashes continue to be a serious problem in the United States. According to the National Highway Traffic Safety Administration, 26% of all fatal crashes in 2017 had speeding as a contributing factor. Method: Vehicle speed data recorded during the Strategic Highway Research Program 2 (SHRP 2) Naturalistic Driving Study were analyzed to identify the frequency of speeding episodes. Up to 100 trips were sampled from 2,910 individual drivers aged 16–64. Vehicle speed data from individual trips were parsed into continuous speeding episodes (SEs) and Free-Flow Episodes (FFEs), which approximated opportunities to speed. Results & Discussion: Driving 10 mph above the posted speed limit (PSL) was common, and 99.8% of drivers had at least one occurrence SE within their trip sample, yielding an average of 2.75 SEs per trip (623,202 SEs in total). The analysis focused on a subset of higher-speed SEs in which the vehicle reached speeds of at least 15 mph above the PSL during the SE (71,113 SEs in total). Average maximum speeds for most higher-speed SEs ranged between 12 mph to 15 mph above the PSL, and most also lasted less than 2 min. Most drivers spent less than 5% of the FFE time speeding, and only a small number of drivers spent more than 10% of the time speeding. There was also a clear trend towards the younger group having higher overall percentages of SE time relative to FFE time. Practical Applications: The methods and measures developed in this study provide the foundation for future analyses to determine if there are different types of speeding that vary in terms of risky characteristics, and further, if certain drivers are more likely to engage in riskier speeding behavior. Identifying higher-risk speeders is an important step for developing countermeasures and strategies targeting drivers that are at greatest risk of speed-related crashes.     

组织滴虫病及其研究动态

组织滴虫病是近年来国内养禽业中出现的一个新问题。作者根据国内外资料,对本病的病原、流行特点和症状、诊断进行了较为详细的评述,并提出了科学的饲养管理措施和防治方法。     

21世纪中国安全减灾战略问题新论——兼议国家“十五”计划应纳入安全减灾问题的思考

中国正处于社会经济全面高速发展阶段,２１ 世纪仍将面临不同程度的自然灾害及人为事故的影响。虽然,在１９９９ 年即联合国“国际减灾十年”的最后一年召开了日内瓦“世界减灾大会”,并通过了一系列宣言及声明,但笔者认为,同近十年兴起的环境保护科学与管理相比,中国在灾害及事故的预测预报、规划战略、科技管理、文化教育诸方面尚有不少差距。为此,就其重要方面作一论述,并对国家“十五”计划未纳入安全减灾目标提出建议,以期引起科技界、决策管理界的关注。     

Study abroad in support of education for sustainability: a New Zealand case study

This article presents a case study of an existing study abroad program to New Zealand interested in infusing sustainability themes into the curriculum. The review of the program is set in the context of United Nations Education for Sustainable Development goals and the role of sustainability in institutions of higher education. The author was an invited external observer and suggests that study abroad programs in support of sustainability education provide transformative learning experiences that invest in the well being of both people and places. Readers should send their comments on this paper to: BhaskarNath@aol.com within 3 months of publication of this issue.