考虑液固耦合储液罐非线性地震反应分析

利用ADINA有限元软件研究了考虑液固耦合的立式圆筒形锚固储液罐非线性地震反应.通过分析计算1000m3储液罐自振特性,储液罐的加速度峰值沿罐壁高度变化趋势,罐壁的应力分布等反应,初步揭示其破坏机理,分析结果为储液罐的抗震设计提供重要的参考依据.     

活性污泥-生物膜一体化反应器对废水中苯酚的降解性能

利用活性污泥-生物膜一体化反应器处理含苯酚废水,考察了反应器对苯酚和COD的处理效果以及反应器运行中生物膜干质量(SS)、挥发性干质量(VSS)、活性生物量、脱氢酶活性(DHA)、胞外聚合物(EPS)的变化,探究了生物膜特性与废水处理效果之间的关系.结果表明:在进水苯酚质量浓度由50mg·L-1逐步提高到500mg·L...     

Urinary phenols and parabens metabolites associated with cardiovascular disease among adults in the United States

Environmental Science and Pollution Research - The field of environmental health has begun to examine the effects of higher-order chemical combinations. The current literature lacks studies...     

基于深度学习的污染场地作业人员着装规范性检测

为解决污染场地修复作业中缺乏统一的人员安全保障管理措施以及人工监管困难的问题,结合HSE理念提出1种基于优化Faster R-CNN的作业人员着装规范性检测算法。该方法在回归损失函数中引入L2正则项,既保证模型的泛化能力,又提高深层网络模型收敛速度。基于自建着装规范数据集（Dress Code Dataset）进行实验,评价算法检测时间和mAP等指标。结果表明:所提出的着装规范性检测算法检测时间为44 ms,mAP为88.17%,解决了传统检测算法中实时性和准确率低的问题,且模型具有更好的泛化性和鲁棒性。     

A novel bioelectrode and anaerobic sludge coupled system for p-ClNB degradation by magnetite nanoparticles addition

Environmental Science and Pollution Research - A novel laboratory-scale bioelectrode and anaerobic sludge coupled system was established for the enhancement of p-chloronitrobenzenes (p-ClNB)...     

基于蚁群算法的煤矿矿井水处理厂址优化配置

针对焦作矿区矿井水处理厂址选择问题,根据焦作矿区中马矿、演马矿、九里山矿三矿井的涌水量、地理条件、人口分布和工农业生产布局等特点,以煤矿矿井水处理费用最小为目标函数,采用蚁群算法模型对煤矿矿井水处理厂址进行优化配置,保证在中马矿、演马矿、九里山矿所围区域内建立的矿井水处理厂的建设费用和运行成本最低。     

A synthetical methodology for identifying priority pollutants in reclaimed water based on meta-analysis

Wastewater reclamation and reuse is an increasing global project, while the reclamation treatment on wastewater does not completely remove all pollutants in water. The residual pollutants in reclaimed water would cause potential risk on human health and ecosystem safety during the long-term use. It is impossible to analyze and control all pollutants one by one in practice, therefore, identification and control of priority pollutants will be efficient strategy to ensure the safe use of reclaimed ...     

中国典型沿海城市水产品中锑的分布特征及食用风险

锑具有毒性和潜在的致癌性,近年来受到越来越多的关注.水产品中锑的数据十分有限.本文分析了中国8个典型沿海城市(盐城市、杭州市、舟山市、宁波市、台州市、温州市、福州市、深圳市)124个市售水产品中锑的分布特征和食用风险.结果 显示,水产品中锑的污染水平较低,含量范围为＜0.13-37.8 ng·g-1湿重,平均含量5.7...     

Have international remittance inflows degraded environmental quality? A carbon emission mitigation analysis for Ghana

Environmental Science and Pollution Research - Despite the considerable contributions of remittances to households and economic advancements, their environmental implications have received little...