《立体构成》课程建设中教学方法的改革与实践

本文通过对《立体构成》课程教学对象的分析，探讨了该课程在理论与实践教学环节教学方法的改进。实践证明，这些改进对于充分发掘学生潜力，激发学生的求知欲望，提高教师业务水平，促进《立体构成》课程教学改革具有重要意义。     

移动床生物膜反应器的研究及应用现状

移动床生物膜反应器是一种高效的污水处理系统 ,目前在国内外已有较多应用。本文就其特点及研究应用状况作简要介绍。     

Enhanced experimental flexibility and control in ecotoxicological mesocosm experiments--a new outdoor and indoor pond and stream system

Scope The German Federal Environmental Agency has put into operation a new modular mesocosm system consisting of eight outdoor and eight indoor ponds and streams in order to investigate fate and effects of chemicals and municipal wastewater in aquatic ecosystems. General design and special characteristics are given to demonstrate the wide range of possibilities for experimental research. - General design. Each of the 16 streams with riffle and pool sections can be varied in length up to 106 m. The streams can be run as circular or flow-through systems at a flow velocity of 0.02 to 0.6 m/s. Physico-chemical standard parameters are measured on-line. The 16 ponds, which can be connected to the stream systems, are equipped with drainage and pore water-sampling devices for simulating processes in the littoral zone including influent and effluent ground water flow. Perspectives Since the highly flexible and controllable construction also allows treating a wide range of hydrological and ecological experiments external institutions are invited to submit proposals.     

规划环评和区域开发环评的比较研究

对区域开发环境影响评价与规划环境影响评价进行了比较研究,指出当前区域开发环评中存在的问题,并提出若干建议。     

An observational study of child safety seat use in an international safe community: Tehran,Iran

Objective: Despite strong evidence of the effectiveness of child safety seats in reducing injuries, the use of these devices in some communities is still rare. The purpose of this study was to determine the prevalence of child safety seat use and the factors influencing its use in the safe community of Tehran.

Methods: This roadside observational study was conducted in 2015 and 2,178 personal cars with a child under 12 years aboard were observed on Tehran's streets in regard to use of child safety seats. Other variables such as the gender of the driver, driver's age group, type of street, region of municipality, time of day, and day of the week were also collected.

Results: Prevalence of child safety seat use was 4.3% and was significantly higher among women drivers, on freeways, and in municipal regions 1, 4, and 7.

Conclusions: The prevalence of child safety seat use in Tehran as a most populous member of the international safe community was very low and most children commuted in insecure situations in the vehicle. Therefore, it is proposed that plans should be made to increase the use of child safety seats in international safe communities.     

小水电资源区域开发环境影响回顾性评价案例分析——以海南省为例

在小水电资源区域开发规划环境影响报告书编制中应设置小水电资源区域开发环境影响回顾性评价专题,对规划区域小水电资源开发过程产生的环境问题进行调查和回顾性评价,从中发现小水电资源开发存在的环境问题,并提出规避的对策。海南省小水电资源开发规划环境影响报告书小水电资源区域开发环境影响回顾性评价专题案例。通过遥感影像判读及现场调查发现,选址不当、断流、减水、沙化、景观破坏、植被覆盖率降低及外来物种入侵、水土流失、用水矛盾、影响渔业资源等环境问题普遍存在,主要原因是环境行政管理虚位。主要对策有：在小水电资源开发规划及项目可行性研究报告中,应将环境法规符合性及环保投资列为重要内容;实施工程环境监理;加强竣工环保验收;将水电站下泄生态流量等环保措施执行情况的现场检查纳入常态工作范畴。     

水环境容量租金分配新模式及理论基础研究

为解决中国水环境容量日益稀缺情况下使用权的合理分配问题,在分析了目前现有水环境容量分配模式普遍存在的严重弊端和缺陷,基于产权理论、价值理论和地租理论等,提出了水环境容量分配新模式-租金分配模式,并考虑到各种复杂的影响因素和中国的实际情况,提出了间接确定水环境容量使用租金的综合计算公式。     

国内外城市可持续发展指标体系比较

文章以英国2009年发表的可持续发展指标体系和美国可持续社区指标指南为例,比较了国内外城市可持续发展评估指标体系,列举了各指标体系的大类和分项,从指标体系的选择和评价方法的确定等方面综述了国内可持续发展指标体系,以期为制定和完善中国的城市可持续发展指标体系提供参考。     

冷冻分离法去除水中污染物的对比研究

分别以含Ca2＋、Mg2＋、Na＋等无机离子水样和含有溴氨酸（1-氨基-4-溴-蒽醌-2-磺酸钠）的水溶液、UIImann缩合反应产生废水为研究对象,采用静态渐进冷冻法分别在人工条件下进行实验,分析并对比了冷冻法对水体中污染物的去除效果和规律。结果表明：冷冻法可以有效去除水体中各种污染物,由于污染物自身结构不同,冷冻法对污染物分离有选择性,对有机物的去除高于无机离子,对单一污染物去除高于复杂废水。     

粪大肠菌群测定中的实验室质量控制研究

对在粪大肠菌群实验过程中涉及到的实验室质控设备、培养基、精密度检验等内容进行了分析,并对实验过程中的关键问题进行了阐述。