Perception of people for the risk of Tianwan nuclear power plant

A questionnaire survey of residents’ risk perceptions related to Taiwan nuclear power plant in China was carried out to explore the determining factors that affect individual risk perception. This study proposed to pursue a more comprehensive understanding of factors that affected individual risk perception to nuclear power plants. Covariance structure analysis was conducted using risk perceptions of nuclear power as dependent variable and including interest and knowledge levels of nuclear power, acceptability, benefit perception, trust in nuclear power operation, and trust in government as independent variables. The use of the hypothesis of Elaboration likelihood model (ELM) was also proposed. The results showed that persons with higher levels of interest and knowledge of nuclear power had their own perceptions of risk closely associated with acceptability and potential benefits of nuclear power. In contrast, persons with no interest in and knowledge of nuclear power would have risk perceptions related to their trust in nuclear operation and the government, which partially supported the ELM hypothesis. All these results indicated that the government in China plays an important role in rational risk perceptions, and well-designed communication of risks will help the public to be involved in risk management and improve people’s rational acceptance of risk.     

缓蚀剂在天然气集输管道内的分布规律及对管道腐蚀的影响

采用数值模拟计算的方法分别对批处理缓蚀剂和连续处理缓蚀剂在某天然气集输管道内的分布规律进行研究,根据缓蚀剂在管道顶部和底部的分布规律,通过腐蚀模拟试验分别研究了管道的底部和顶部腐蚀行为.结果表明:在天然气流作用下,批处理缓蚀剂膜在管道内部分布不均,缓蚀剂膜在管道顶部的厚度低于管道底部,弯头内侧的批处理缓蚀剂膜明显减薄;连续处理缓蚀剂在重力作用下主要沉降在管道底部,仅弯头的顶部受少量缓蚀剂的保护.在批处理缓蚀剂和某一浓度的连续处理缓蚀剂作用下,管道底部的腐蚀基本上得到了控制,但管道顶部发生了明显的局部腐蚀.     

石化建设项目HSE第三方管理模式探讨

石化建设项目既具有作业面狭窄,高处作业交叉集中,用火、用电频繁的特征,又具有大型吊装作业多、易燃易爆场所多等特点,极易发生各类事故。项目受进度、质量、投资等方面的制约,严格执行HSE管理体系难度大。如何提高大型石化工程项目HSE管理水平,建立高效的管理模式,把事故和损失降到最低点,成为项目HSE管理的难点。     

视觉界面对人－机系统特性影响的试验研究

以驾驶员和飞行模拟器构成人－机仿真系统，结合驾驶员完成单自由度补偿跟踪任务，对飞机仪表显示和屏显两种显示方式进行了人－机系统仿真试验，通过频域辨识方法，获得了拟线性驾驶员描述函数，进而分析了两种显示方式对驾驶员特性和人－机系统特性的影响。     

两种柠檬酸生产工艺的清洁生产评价

以江苏某柠檬酸厂的实际生产为基础,对传统钙盐法和连续色谱法两种柠檬酸生产工艺进行了系统的清洁生产评价。结果表明:色谱法比钙盐法消耗的原材料少,排放的污染物也少。以此为基础,为柠檬酸行业的清洁生产提出了建议。     

环境损害鉴定评估制度发展及黑龙江省建设现状分析研究

随着中国经济高速发展以及工业化进程的不断加快,环境污染事故呈频发态势,环境公益诉讼制度实施和公众环保意识不断觉醒,环境司法诉讼案件数量也呈爆发性增长.环境污染损害鉴定评估工作是环境损害赔偿量化的重要基础性工作,科学的评价环境损害问题已成为环境管理研究的重要课题.基于对环境损害评估制度的调研,介绍了国内外研究现状进展,分析了黑龙江省工作现状,探讨了当前存在的问题,提出了相应的对策建议,为进一步推进环境损害鉴定评估工作发展和完善提供参考.     

共享"红线" ——宜昌市环境总体规划信息管理与应用系统(V1.0)开发研究

在宜昌环境总体规划(2013-2030)得到市人大批复实施的背景下,为共享环境总体规划生态功能红线、环境质量红线与资源开发红线("三条红线")、为满足提供规划实施与评估有效途径的实际需求,在市信息办及环保局现有业务信息系统现状评价基础上,综合运用GIS、海量空间数据管理、SOA架构、瓦片地图分发、移动GIS等技术,设计开发了宜昌市环境总体规划信息管理与应用系统(V1.0),实现了"三条红线"等相关数据成果的地图展示、查询等精确管理分析以及项目环境影响评价的辅助决策.     

Species distribution of arsenic in sediments after an unexpected emergent discharge of high-arsenic wastewater into a river

The unexpected emergent discharge of high-arsenic wastewater into water environments results in significantly increased levels of arsenic in water; however, the species distribution of arsenic in sediments has never been reported before for such cases. This study focuses on an As pollution accident in the Dasha River, and uses sequential extraction procedures with deionized water, 1?mol·L^-1 MgCl₂ at pH= 8, 1?mol·L^-1 NaH₂PO₄ at pH= 5, and 1?mol·L^-1 HCl to investigate four binding phases of arsenic (i.e., water soluble, ion-exchangeable, strongly-bound, and precipitates) in sediments at different layers in different cross-sections along the river. The average ratio of arsenite (As(III)) to arsenate (As(V)) was found to decrease from 0.74:1 in river water to 0.48:1 in sediment, owing to its higher affinity toward As(V) than As(III). The content of arsenic in the sediments was relatively low and the maximum content was observed to be 36.3?mg·kg^-1 for As(III) and 97.5?mg·kg^-1 for As(V). As(III) and As(V) showed different binding phases in sediments, and the average fractions of these four species were determined to be 0.09, 0.11, 0.17, and 0.63 for As(III) and 0.03, 0.14, 0.63, and 0.20 for As(V), respectively. For all the sediment samples, the content of arsenic showed no relationship with the characteristics of the sediments such as the particle diameter, the content of organic carbon, Fe, and Mn, although a negative correlation with particle diameter was observed for the sediments in the uppermost 2-cm layer. The unexpected emergent As incident results in the high content of total arsenic in the surface sediment, which may be potential secondary source to the elevated As levels in surface water.     

聚类分析及其在土地利用分类中的应用

本文通过探讨聚类分析的模式相似性测度,计算方法和步骤,结合土地利用的实际,提出了分类指标,并给出了土地利用聚类分析的计算方法和步骤。     

江苏省土地后备资源持续利用研究

本文从土地可持续利用的要求出发,分析了江苏省土地后备资源的数量、分布特征和成因,提出了土地后备资源持续利用的对策