聚丙烯环管中试装置的改造与优化

聚丙烯高效催化剂及工程塑料研发装置反应器的核心是一个预聚反应器和两个环管反应器,第一环管反应器出料采用桥路连接,第二环管出料系统采用程序控制开关阀交替开关的间歇式出料方式。由于环管桥路设计不当,造成两个环管聚合反应的不平衡:第一环管反应热堆积,导致爆聚,第二环管无法建立反应。第二环管的间歇出料方式设计则限制了产量。针对上述设计缺陷,采用环管桥路尺寸减小、位置更改等手段解决第一环管爆聚、第二环管无法建立反应的问题;通过在出料管线上并联一组开关阀、优化控制组态来达到调节产量目的。     

生物过滤除臭在葫芦岛高新区污水厂设计中的应用

文章结合污水处理厂实际工程案例,对目前国内普遍采用的各种除臭技术进行比较,对生物过滤技术除臭的设计及运行效果进行详细论述。     

Landslide risk perception survey in Angra dos Reis (Rio de Janeiro,southeastern Brazil): A contribution to support planning of non structural measures

The increasing magnitude and frequency of landslide-related disasters exposes weaknesses in disaster risk reduction (DRR) policy. One of the underlying reasons is that DRR policies tend to focus only on the physical aspects of the problem (i.e. mass movement processes) while neglecting the level of vulnerability of exposed populations to landslide threats, which affects the types and magnitude of adverse consequences. This neglect is a typical symptom of the remoteness that can exist between public administrators and local communities and undermines the implementation of participatory risk management. Certain dimensions of vulnerability depend on how communities relate to the issue of disasters based on their intuitive or rational judgment, i.e. their perception of risk. This paper seeks to shed light on the need for an understanding of risk perception based on the findings from a survey of residents in the city of Angra dos Reis, Rio de Janeiro, Brazil, to be taken into account in aiming at a more efficient landslide risk management policy. The survey was carried out through semi-structured face-to-face interviews with residents of three typical hillside communities in this municipality. In general, the study found that residents will often weigh landslide risks against other threats and opportunities existing where they live. It also found that community members find it difficult to see themselves as agents of change in the environment where they live and in mitigating landslide risks, and that better communication is needed between the government agencies involved in risk management and local residents.     

Major Psychological Factors Affecting Acceptance of New Breeding Techniques for Crops

New plant biotechnologies called new breeding techniques (NBT), which will follow the present genetically modified (GM) technology, have appeared and are attracting attention worldwide. The first purpose of this study was to show consumer attitudes toward traditional plant breeding, GM, and NBT crops. The second purpose was to verify the validity of a psychological model determining the acceptance of NBT crops. A survey was conducted in Japan with 657 randomly selected adult participants. The results showed that perceived risk, perceived benefit, trust, sense of bioethics, anxiety, and anger play an important role in the personal and public acceptance of NBT and indicated that trust and anxiety are especially important factors in both situations.     

Wheat variety yield data: Do commercial and public performance tests provide the same information?

Wheat yields from reported performance test results are of economic importance to wheat producers, since their profits depend on selecting the optimal variety for their location. However, our data shows differences in absolute and relative wheat yields between commercial and public wheat breeding program's performance test data in Kansas. Newly available data are used to test if the difference in yields arose from potential selectivity bias, and to determine the contribution of private and public wheat breeding programs to varietal yield improvement during 2007–2012. Both Heckman selection models and multiple regression showed no statistical evidence of the potential presence of selectivity bias rather, managerial practices, agronomic conditions, field location, and inherent genetic traits of the seed variety were identify as the source of yield differences.     

焦化厂深化厂务公开工作情况的调研报告

厂务公开是企业民主管理工作的重要组成部分。近年来,焦化厂通过推行厂务公开民主管理工作,实现了从厂部到车间及至班组的三级网络公开体系,形成了常规性工作定期公开,长期性、阶段性工作分阶段公开,短期、临时性工作随时公开的良好态势。使职工的知情权、参与权和监督得到有效的落实,为现代企业发展提供了强有力的支撑。     

OPTIPRO系统在发电厂中的综合运用

本文介绍了OPTIPRO系统在发电厂中的综合运用,主要介绍了运行操作指导和设备状态监视方面的方法和案例。     

Between Neoliberal Governance and the Right to the City: Participatory politics in Berlin and Tel Aviv

Based on a comparison of Berlin and Tel Aviv, this article investigates the ways in which ensembles of participatory instruments mediate between neoliberal urban regimes and political agency shaping differentially the meaning of participation and the types of claims that can be advanced. The article gives an overview of the recent history of both cities through the lens of participatory politics. Two in‐depth case studies further examine the relationship between participatory politics and claim making in each setting: the recent conflict over a social center in the district of Friedrichshain‐Kreuzberg in Berlin and the Levinsky tent city of 2011 in Tel Aviv. In the concluding section, the article suggests that, rather than assuming that participatory tools either co‐opt movements or can be appropriated by them, we need to rethink the relationship between participatory tools, rights and recognition, and ask how participatory structures and political agency constitute each other in interwoven dynamics.     

基于台风危害的厦门地区园林树木受损 原因研究

基于2016年9月16日1614号台风对厦门绿地的严 重影响，通过为期2个月对台风现场实地调研以及相关部门抢 险的数据统计，第一时间了解此次台风中厦门重要园林树种的 受害状况，分析树木在台风中的受损原因。台风灾害发生后给 厦门市的园林树木以及景观带来巨大的损害，因此对于厦门地 区园林树木受损原因的研究非常有必要。研究了受损原因后， 才可以在灾前以及灾后对重要的园林树木种进行栽培养护管 理，增加厦门绿化的抗灾能力以及灾后的及时恢复工作。     

调整燃烧降低飞灰含碳量

飞灰含碳量对火电厂经济运行有重要影响。本文主要研究通过对电厂锅炉燃烧方式的运行调整提高锅炉的效率和经济性的措施和方法。