配制剂实务

有关配置剂的用法从来就没有过什么秘典,而且无论在什么情形下,其制作和使用方法也都绝非机密。每个人,只要他以开放的头脑面对生物动力农业,就能学到他所需要的。     

视频教学促进石油工业与环境保护概论课程改革的创新探索

文章以中国石油大学(华东)环境与安全工程系开设的"石油工业与环境保护概论"课程为例,阐述了将视频教学融入传统课堂教学实施过程、促进课程改革的优势、取得成果和未来发展趋势。从而为我国石油高校相关课程教学改革提供了新的理念和方法,也为我国石油工业实现绿色发展培养更加优秀人才提供参考。     

污水处理过程风险控制的仿真系统

污水处理过程生化反应过程复杂,现场实验不仅时间长且成本高。为了有效节约岗前培训时间、提高员工对设备认知度,建立了一套基于可视化软件的污水处理过程仿真系统,并辅以HAZOP分析强化仿真效果。通过系统关键节点信息弹窗,污水处理过程工艺仿真实现与实际处理过程相结合,能够有效地提高岗前培训效果,改善生产安全现状并提高设备管理水平。     

图片新闻

北京,地坛,中午11点,烈日下的冰孩子逐渐消融。这是由绿色和平组织组织的哥本哈根倒计时一百天特别活动的一幕。这次活动用取自长江、黄河和恒河三条大江源头的冰川融水制作成冰雕,在北京和印度新德里同时展出。出自名家之手的一百个“冰孩子”,在全球变暖的危机中将难以幸存,等待他们的命运唯有在烈日下溶化消失。     

Excel软件在环境监测质量控制中的应用

本文介绍了Excel软件在环境监测质量控制中的应用,结合实例详细阐述了利用Exeel软件制作Youden双样图的方法。     

充分利用校园绿化进行园林教学的尝试

园林专业是实践性很强的学科,教学内容跨度大、涉及面广。针对我院园林专业实践性强的特点,利用校园植物进行园林专业在树种识别、标本制作等方面的实践教学改革,有效地提高了教学质量。     

大气污染预测软件的测试

针对大气预测工作中可能出现的各种偏差,结合影响大气扩散的主要因素,对大气污染预测软件的测试方法进行了归纳,提出了测试大气预测软件的基本方案。     

一种考虑软件工作载荷的可靠性综合试验剖面设计技术

为了改进现有智能装备系统可靠性试验技术,提高试验评价的准确性,对现行可靠性试验和软件测试的特点进行了分析,研究提出一种考虑软件工作载荷的可靠性综合试验剖面设计技术,通过融合MUSA操作剖面构造技术和Markov链的状态迁移技术,设计软件使用操作剖面,基于任务剖面实现软操作剖面和硬件可靠性试验剖面的有效匹配.通过某设备进...     

基于CiteSpace软件的海绵城市研究可视化分析

分析海绵城市研究的文献增量趋势、国家及机构分布以及研究前沿等,为我国海绵城市研究提供参考.从Webof Science (WoS)核心数据库中有条件的筛选出1 008篇文章,采用CiteSpace软件开展可视化分析.海绵城市研究呈上升趋势,英格兰、中国和澳大利亚在该领域的研究中具有核心地位,澳大利亚的蒙纳士大学、美国环...     

2011年全国环境保护及相关产业基本情况调查启动会召开

2012年10月16日,环境保护部、国家发展和改革委员会、国家统计局在京召开2011年全国环境保护及相关产业基本情况调查启动会。环境保护部副部长吴晓青在会上发表重要讲话。会议主题是贯彻落实《国务院关于加快培育和发展战略性新兴产业的决定》和《＂十二五＂节能环保产业发展规划》的要求,部署环保产业调查的组织实施工作,系统讲解调查方案和软件使用方法,并全面启动新一轮的环保产业调查工作。为摸清当前我国环保产业的发展状况,     

GRADUATE EDUCATION IN WATER RESOURCES: AN INNOVATIVE APPROACH Part II: Post-Production Techniques1

ABSTRACT: The production of a documentary video in a graduate seminar offers advantages over the traditional term paper. These advantages derive from the nature of the videotape medium. The most distinct difference between a written document and a video production is the use of the video camera to record events. In using the camera, the student is required to become involved both in front of the video camera, for example, as an interviewer, and behind the camera as a camera operator. Next, as an editor, the student is required to review the events that she/he has taped for inclusion in the final product. By participating in these three roles, the student has the opportunity to learn interviewing skills while interacting with professionals in the field, to learn videotaping skills, and to see him/herself as he/she appears to others. The student can use the video feedback to improve his/her professional presentation; posture, dress, gestures, speech, and facial expressions all have an impact on how we are perceived by others. Additionally, the painstaking process of reviewing the taped material leads to an intimate knowledge of the topic, and the process of choosing portions out of entire interviews hones the ability to select the crucial or central themes and ideas from any discussion. Finally, the power of video lies in its ability to communicate information to a wide audience. Although the nature of video for the general public does not permit highly detailed or rigorous coverage of any topic, it is a major source of information. Accordingly, video is an important tool that can be used to inform the public about the importance of wise water resource management.     

大庆油田污染源在线监测管理系统实施及应用

前端仪表自动监测子系统、现场视频监控子系统、现场数据及视频传输子系统、监测中心子系统、软件应用子系统五个方面对大庆油田污染源在线监测管理系统的构成和功能进行介绍,探讨了污染源远程监控和管理的可行性,对于实现污染源的高效监管,具有积极的借鉴价值。     

梁子湖自然保护区土地利用/土地覆盖动态变化研究

基于梁子湖自然保护区1987年和2004年Landsat-TM影像遥感数据，在Erdas Imagine 8．5图像处理软件的支持下，结合野外实地考察，获得了土地利用现状图，通过对数据的统计分析，研究了保护区近20年来土地利用／土地覆盖的动态变化。研究表明：耕地和水域是保护区内的主要土地利用类型；近20年来，耕地、园地、林地、草地的面积都有减少，其中耕地面积减少了2320．816hm^2，减少比例达到11．78％，是面积减少最多的土地利用类型；居民点、交通、水域用地有所增加，其中池塘面积变化最大，增幅达到213．4％，是面积增加最多的土地利用类型，居民点用地增加了551．18hm^2，增幅达到59．07％，是增长幅度较大的土地利用类型。变化的原因主要是经济的发展、人口数量的增长和旅游业的发展。     

100% recycled hot mix asphalt: A review and analysis

A holistic evaluation of the feasibility of producing 100% recycled mixtures is presented. Eleven technologies readily available for producing 100% Reclaimed Asphalt Pavement (RAP) hot asphalt mixtures are described in the article and the complementary video (http://youtu.be/coj-e5mhHEQ). The recorded performance of 100% RAP mixtures is analyzed along with identification of typical high RAP distresses. Recommended mix design procedures and the best RAP management strategies are described. A cradle-to-gate analysis of environmental effects indicated 18 kg or 35% CO₂eq savings per t of produced 100% RAP asphalt mixture compared to virgin mix, while cost analysis showed at least 50% savings in material related expenses.     

Environmental life cycle assessment of different types of the municipal wastewater pipeline network

With the onset of social life, humans have considered waste disposal as essential, and they have been able to repel it through brick and clay channels. Checking sewage pipes for energy consumption and a longer lifetime than other sewage system components is important. Climate change and exploitation of industrial resources have made environmental impacts, which are important factors in decision making. The purpose of this study was to introduce the most suitable type of sewage pipe considering environmental protection. Therefore, we applied the environmental life cycle assessment (LCA) method, using Sima Pro 8.2.3 software for the one-kilometer length of concrete pipes (300 mm in diameter), Polyvinyl chloride (PVC), and polyethylene (PE) (315 mm in diameter). Also, the BEES method and sensitivity analysis were used to validate the results. The comparison between three types of municipal wastewater pipes indicated that PE pipes are a more environmentally friendly option than PVC, and concrete pipes in pipe recycling, reducing extraction from untapped resources, and inefficient extraction of resources. Electricity, diesel fuel, and sulfate resistance cement consumption for concrete production are the most pollution elements in the LCA of concrete pipes. Usage of PVC granular, sanitary landfill of PVC pipes, and using hydraulic drill in LCA of PVC pipes are the most elements of generating pollution. The usage of PE granules, PE pipes landfilling, hydraulic excavator, and electricity consumption in the LCA of the PE pipes are the greatest polluting parameters.     

Experimental Investigation on the Removal of Toner Particles from Laser-Printed Office Waste Papers

Abstract

In this work the deinking process was simulated in a small high speed blender of about 2 L capacity. The effects of polyethylene (PE) and wax-coated PE on the removal of toner particles in the pulper slurry has been experimentally investigated. The effect of one commercial surfactant (30% anionic, 5% nonionic) on the toner release efficiency was also studied. The average area of toner particles retained on filter papers were determined using an image analysis system that consists of a high-resolution video camera mounted on an optical polarizing microscope, an image software processor, a Pentium PC, and a high-resolution image monitor. The effect of low density PE on toner detachment from laser-printed standard paper was investigated over a concentration range of 0 –200% PE (relative to paper mass). It is found that PE has a certain capabilty of removing (adsorbing) toner particles. In the second phase of this research work, the effect of wax-coated PE was investigated. It was found that wax-coated PE enhances the removal of toner particles beyond that obtained using only PE. Finally, the effect of a commercial surfactant on the release of toner particles have been investigated over a range of surfactant mass percentage (relative to the paper mass).     

Factors Affecting Take-up of and Drop-out from Home Composting Schemes

This paper reports survey results from Scotland and north-west England into home composting attitudes and behaviours. The results concentrate on: the take-up of home composting through promotional campaigns; and the reasons for drop-out. Motivations for take-up were balanced between environmental and gardening reasons, although capital cost was an important issue for some. Drop-outs occurred mainly through participants moving house or because of lack of success in producing compost. Few of those experiencing problems sought help. Those that did favoured official or professional sources. Neighbourhood social pressures to compost were relatively weak. The results are discussed in terms of the sustainability of home composting behaviour and the manage ment interventions that might be required in sustaining that behaviour.     

Factors Affecting Take-up of and Drop-out from Home Composting Schemes

This paper reports survey results from Scotland and north-west England into home composting attitudes and behaviours. The results concentrate on: the take-up of home composting through promotional campaigns; and the reasons for drop-out. Motivations for take-up were balanced between environmental and gardening reasons, although capital cost was an important issue for some. Drop-outs occurred mainly through participants moving house or because of lack of success in producing compost. Few of those experiencing problems sought help. Those that did favoured official or professional sources. Neighbourhood social pressures to compost were relatively weak. The results are discussed in terms of the sustainability of home composting behaviour and the manage ment interventions that might be required in sustaining that behaviour.     

区域土地资源利用管理信息系统设计与应用——以长江三角洲无锡市滨湖区为例

区域土地资源利用管理信息系统是一种存储、兼容、管理、分析、显示与应用土地信息的计算机监控系统，是建立在地理信息系统（GIS）软件工具之上，并在ComGIS组件Mapobject2．0平台支撑下进行设计和开发应用的。该系统的设计与开发可为区域土地资源合理开发利用规划与产业布局的调整提供科学依据，特别是对高强度开发下的长江三角洲土地资源的可持续利用具有较重要的实际应用价值。