电磁污染及电磁辐射防护材料

电磁辐射被称为是“隐形杀手”,简述了电磁污染的现状及电磁辐射的危害,详细论述了电磁波防护材料的研究进展,并针对目前存在的问题提出了防护电磁污染的对策。     

江苏环境经济系统的能值分析与可持续发展对策研究

能值分析将自然资本的价值纳入人类社会环境经济系统评价范畴，解决了传统方法无法衡量自然资本服务价值对经济过程的影响问题。文章通过对江苏主要能值指标的分析，得出江苏环境经济系统近20年来的发展是不可持续的，并从能值分析角度提出实施江苏可持续发展的对策。     

槽式太阳能热电站光污染问题分析

槽式太阳能热电站正常运行情况下会不可避免地产生光污染问题。本文分析了槽式太阳能热电站产生光污染的原因以及光污染对人和生态环境产生的影响。在槽式太阳能电站选址阶与运行阶段,分别提出了有效的光污染防治措施,为今后槽式太阳能热电站光污染防治提供了一定的参考依据。     

低湖平原典型湖垸水系规划数学模型——新兴垸排涝灌溉系统最优规划

以“四湖”地区典型湖垸（新兴垸）为背景，给出了典型湖垸水利系统满足综合设计排涝标准的评价准则。用大系统理论与方法，建立了该湖垸水利规划的大系统数学模型，提出了根据子系统之间的关联变量修建节制闸的设计思想，从而使排涝灌溉一体化。最后，用动态规划方法，给出了递推关系式。     

电磁辐射异常信息的分析与思考

对大丰市地震台地震电磁辐射观测仪１９９３－１１～１９９５－１０的观测记录资料进行了整理，对出现的异常信息和地震的对应关系进行了统计分析，提出了几点思考和认识，对从事地震电磁辐射的观测人员有一定的参考意义     

Theoretical Calculation and Economic Assessment of the Integrated Solar Combined Cycle Power Plants

The ISCC technology representing an integrated solar combined cycle and the economic assessment of ISCC are investigated. Comparisons conducted by theoretical calculation method among two cases, that is, an integrated solar combined cycle system (ISCCS) and a combined cycle gas turbine system (CCGTS) show that ISCCS provides the best solution with the highest efficiency of heat to electricity among them. The results reflected by theoretical calculation also reveal that ISCCS is beneficial to energy saving and emission reduction. Due to the great advantages of ISCC, comprehensive analysis on the basic conditions for building ISCC power plants is analyzed in detail.     

核与辐射事故防范与安全战略措施研究

针对核与辐射事故防范与安全战略措施研究问题,介绍了中国核与辐射安全现状,分析了核安全,是国家安全的重要组成部分,为最大限度降低公众辐射受照水平,保护公众的身体健康与生活环境,要确保核的应用与辐射安全,中国已将核与辐射安全纳入国家安全的公共安全体系,并进行战略规划研究。本文通过分析中国核与辐射安全现状及发展趋势,提出了核与辐射事故防范和救治的发展目标,相对应的提出有关核与辐射事故防范与救治安全战略措施及建议。     

大学生人群手机电磁辐射监测与分析

为研究大学生的手机电磁辐射暴露程度,针对手机的3种使用状态(通话、发短信、上网),用TES-593电磁波污染强度计系统地监测了36部手机,监测点代表耳朵、眼睛和手所在处.结果表明,所有监测值均符合国际非电离辐射防护委员会(ICNIRP)的参考水平.3种使用状态下的手机电磁辐射辐射强度大小依次为通话、发短信、上网;在室内通话、发短信和上网状态下,2G手机近背面的平均电场强度依次为15.27 V/m、11.43 V/m和9.57 V/m;手机在室内通话状态下的电场强度大于室外通话状态下的电场强度,2G手机在这两种状态下,听筒处的平均电场强度分别为16.00 V/m、9.46 V/m.多数手机室内通话电场强度容易超过GB 8702-88《电磁辐射防护规定》的参考值.手机发短信、上网时的辐射强度随距离增大而减小,一般情况下不会超过《电磁辐射防护规定》的参考值.     

Photocatalytic degradation of the diazo dye naphthol blue black in water using MWCNT/Gd,N,S-TiO2 nanocomposites under simulated solar light

A simple sol–gel method was employed to prepare gadolinium, nitrogen and sulphur tridoped titania decorated on oxidised multiwalled carbon nanotubes (MWCNT/Gd,N,S-TiO₂), using titanium (IV) butoxide and thiourea as titanium and nitrogen and sulphur source, respectively. Samples of varying gadolinium loadings (0.2%, 0.6%, 1.0% and 3.0% Gd^3 +) relative to titania were prepared to investigate the effect of gadolinium loading and the amounts of carbon nanotubes, nitrogen and sulphur were kept constant for all the samples. Furthermore, the prepared nanocomposites were evaluated for the degradation of naphthol blue black (NBB) in water under simulated solar light irradiation. Higher degradation efficiency (95.7%) was recorded for the MWCNT/Gd,N,S-TiO₂ (0.6% Gd) nanocomposites. The higher photocatalytic activity is attributed to the combined effect of improved visible light absorption and charge separation due to the synergistic effect of Gd, MWCNTs, N, S and TiO₂. Total organic carbon (TOC) analysis revealed a higher degree of complete mineralisation of naphthol blue black (78.0% TOC removal) which minimises the possible formation of toxic degradation by-products such as the aromatic amines. The MWCNT/Gd,N,S-TiO₂ (0.6% Gd) was fairly stable and could be re-used for five times, reaching a maximum degradation efficiency of 91.8% after the five cycles.     

Fault propagation behavior study and root cause reasoning with dynamic Bayesian network based framework

The Bhopal disaster was a gas leak incident in India, considered the world's worst industrial disaster happened around process facilities. Nowadays the process facilities in petrochemical industries have becoming increasingly large and automatic. There are many risk factors with complex relationships among them. Unfortunately, some operators have poor access to abnormal situation management experience due to the lack of knowledge. However these interdependencies are seldom accounted for in current risk and safety analyses, which also belonged to the main factor causing Bhopal tragedy. Fault propagation behavior of process system is studied in this paper, and a dynamic Bayesian network based framework for root cause reasoning is proposed to deal with abnormal situation. It will help operators to fully understand the relationships among all the risk factors, identify the causes that lead to the abnormal situations, and consider all available safety measures to cope with the situation. Examples from a case study for process facilities are included to illustrate the effectiveness of the proposed approach. It also provides a method to help us do things better in the future and to make sure that another such terrible accident never happens again.