木质素螯合微肥对生菜栽培中硝酸盐污染的控制作用

通过土培，沙培盆栽试验，研究了木质素螯合微肥对生菜硝酸盐污染与土壤肥力的影响，结果表明，在相同施肥水平下，与无机微肥或EDTA微肥相比，木质素螯合微肥均能降低生菜硝酸盐含量，其中沙培比土培下降的程度更大，土培冲施木质素螯合微肥盆栽生菜后，土壤酸化程度低，土壤盐分下降，铵态氮，有效磷，有效钾及有机质均有一定程度提高，土壤肥力增强，有利于无公害蔬菜生产。     

浅谈危险化学品安全评价

通过对危险化学品安全评价的重要性和必要性的再认识，结合笔者多次参与安全评价的实践经验和体会．揭示出当前危险化学品安全评价所面临的困难和存在的问题，并针对性地提出了相应的对策措施。以便改进当前我国危险化学品安全评价工作。     

Bow-tie模型分析在乙烯球罐区的应用实践

针对乙烯球罐区属于一级重大危险源和高风险重点监控区域的特点,将Bow-tie模型分析方法引入到乙烯球罐区的风险管理中,通过识别危险因素和初始事件,确定乙烯泄漏为顶上事件,定性分析了导致乙烯球罐泄漏的原因和后果,设置有针对性的预防和减缓屏障,验证了各屏障的有效性,提出针对性的措施,实现Bow-tie模型分析方法在乙烯球罐区风险管控的成功运用。     

湘境国道4项目危险品运输风险环境影响分析方法研究

根据具体范例，分析了公路项目危险品运输风险环境影响评价的分析方法，其研究成果对开展同类项目危险品运输风险环评有重要的参考价值。     

如何在炼化企业开展HSE风险评价

本文针对炼化企业技术密集，高温高压，易燃易爆等特点，阐明了在炼化企业开展HSE风险评价的程序和方法，全面分析与评价生产经营过程中的风险因素，并通过制定对策措施和实施HSE关键任务来削减和控制风险，保障炼化企业的安全生产。     

油品储运过程中的静电危险性分析及防范措施

对油品储运过程中存在静电危险性的原因进行了分析,提出了相应的防范措施.     

几种典型有害化学品对水生生物的急性毒性

采用水体中3个营养级别的水生生物（绿藻、水Sou和鱼）测试卤代酚类、硝基苯类、烷基苯类典型有毒有害化学品对水生生物的急性毒性，同时对上述物质对水生生物的安全性进行初步评估，并预测了上述物质对水生生物的环境安全浓度，研究结果表明，在3类12种有机污染物中，卤代酚类物质对水生生物的毒性最强，其中五氯苯酚对水生生物具有极高毒性。在3个营养级别的受试生物中，剑尾鱼对上述毒物具有较好的敏感性，结果稳定，重现性好，说明剑尾鱼是一种优良的水生毒性试验材料，图1表3参11。     

Some Interpolation Estimators in Environmental Risk Assessment for Spatially Misaligned Health Data

Ecological regression studies are widely used in geographical epidemiology to assess the relationships between health hazard and putative risk factors. Very often, health data are measured at an aggregate level because of confidentiality restrictions, while putative risk factors are measured on a different grid, i.e., independent (exposure) variable and response (counts) variable are spatially misaligned. To perform a regression of risk on exposure, one needs to realign the spatial support of the variables. Bayesian hierarchical models constitute a natural approach to the problem because of their ability to model the exposure field and the relationship between exposure and relative risk at different levels of the hierarchy, taking proper account of the variability induced by the covariate estimation. In the current paper, we propose two fully Bayesian solutions to the problem. The first one is based on the kernel-smoothing technique, while the second one is built on the tessellation of the study region. We illustrate our methods by assessing the relationship between exposure to uranium in drinkable waters and cancer incidence, in South Carolina (USA).     

重结晶LLM-105的热危险性分析

为了研究重结晶前后LLM-105在敞开体系、绝热体系中的热分解特性,采用溶剂-非溶剂法制备了形状规则、缺陷更少的重结晶LLM-105。以差示扫描量热仪研究了LLM-105的非等温热分解行为,利用Friedman法得到了非等温热分解动力学参数及TD24。采用加速量热仪研究了LLM-105的绝热分解行为,计算了绝热分解动力学参数及SADT。结果表明,重结晶LLM-105的非等温热分解起始温度(升温速率为10℃/min)、绝热起始分解温度、绝热最大升温速率分别为353.12℃、277.19℃、77.39℃/min,未重结晶LLM-105的相应参数值分别为341.62℃、273.77℃、136.62℃/min。重结晶LLM-105的非等温热分解起始温度、绝热起始分解温度更高,绝热最大升温速率更小。结晶品质是LLM-105的热分解特性、热危险性的重要影响因素。重结晶LLM-105具有更好的热稳定性,绝热分解反应更温和。     

An innovative three-dimensional approach for the simulation of pressure vessels exposed to fire

The present study introduces an innovative approach to the detailed simulation of the pressure build-up in equipment containing saturated liquids when exposed to fire. The approach is based on the adoption of a fully three-dimensional (3D) computational fluid dynamics (CFD) model of the inner fluid. Experimental data gathered from literature studies were used to validate the model considering vessels of several scales and geometries exposed to a full engulfing pool fire. The comparison between the results of the 3D CFD model developed and those of two-dimensional (2D) literature models was also carried out. This enabled deriving precise indications on the selection of the most suitable approach based on the type of accidental scenario to reproduce, confirming 2D models as sound and reliable tools to model the fluid behaviour when homogeneous heat exposure conditions are present. On the other side, limitations of 2D approaches in capturing edge effects on i) temperature profiles, ii) recirculation patterns, and iii) energy accumulation in the vessel lading during fire exposure were identified and discussed. The results obtained represent a valuable source of information to support risk management and emergency response planning.