Dilo针刺无纺滤料生产线特性分析

通过与国内针刺生产设备的对比,对进口Dilo针刺技术的优势、设备构造、自动化性能,以及产品的指标参数等进行了阐述,认为采用先进生产设备不仅能够提高企业产品的产量和质量,而且对企业自身的发展有促进作用。     

Alterations of protein profile in zebrafish liver cells exposed to methyl parathion: a membrane proteomics approach

Methyl parathion (MP) is an extensively used organophosphorus pesticide, which has been associated with a wide spectrum of toxic effects on environmental organisms. The aim of this study is to investigate the alterations of membrane protein profiles in zebrafish liver (ZFL) cell line exposed to MP for 24 h using proteomic approaches. Two-dimensional gel electrophoresis revealed a total of 13 protein spots, whose expression levels were significantly altered by MP. These differential proteins were subjected to matrix-assisted laser desorption/ionization tandem time-of-flight mass spectrometry analysis, and nine proteins were identified to be membrane proteins, among which seven were up-regulated, while two were down-regulated. In addition, the mRNA levels corresponding to these differential membrane proteins were further analyzed by quantitative real-time PCR. And the differential expression of arginase-2 was specially validated via Western blotting. Regarding the physiological functions, these proteins are involved in molecular chaperon, cytoskeleton system, cell metabolism, signal transduction, transport and hormone receptor respectively, suggesting the complexity of MP-mediated toxicity to ZFL cell. These data could provide useful insights for better understanding the hepatotoxic mechanisms of MP and develop novel protein biomarkers for effectively monitoring MP contamination level in aquatic environment.     

Development of an Evaluation Methodology for Triple Bottom Line Reports Using International Standards on Reporting

The purpose of this article is twofold. First, evaluation scoring systems for triple bottom line (TBL) reports to date are examined and potential methodological weaknesses and problems are highlighted. In this context, a new assessment methodology is presented based explicitly on the most widely acknowledged standard on non-financial reporting worldwide, the Global Reporting Initiative (GRI) guidelines. The set of GRI topics and performance indicators was converted into scoring criteria while the generic scoring devise was set from 0 to 4 points. Secondly, the proposed benchmark tool was applied to the TBL reports published by Greek companies. Results reveal major gaps in reporting practices, stressing the need for the further development of internal systems and processes in order to collect essential non-financial performance data. A critical overview of the structure and rationale of the evaluation tool in conjunction with the Greek case study is discussed while recommendations for future research on the field of this relatively new form of reporting are suggested.     

高压架空线引发的电磁污染及其对人体健康的危害

定性分析了高压架空线"多频谱电磁污染"产生的原因,定量计算了高压架空线周围多频谱电磁场的分布,讨论了多频谱电磁污染对人体健康产生的危害,最后提出了"电磁屏蔽"、"绿色"涂料等可行的防护措施.     

城市环境总体规划的空间管控体系研究——以贵阳城市环境总体规划为例

环境空间管控和环境空间规划是我国城市空间规划体系中的短板,我国亟需建立起一套城市环境空间管控体系,来参与城市空间规划体系的建立,进而彻底扭转城市环境污染被动治理的尴尬局面。构建覆盖城市各领域的环境空间管控体系是城市环境总体规划的主要任务。本文梳理了我国环境空间管控发展现状和问题,从城市环境总体规划的角度,在城市层面构建了由环境功能区划、以生态保护红线为核心的严格管控区以及环境承载调控等手段组成的环境空间管控体系,并以贵阳城市环境总体规划为案例,进行了环境空间管控体系的构建。最后提出了实施城市环境总体规划空间管控的政策建议,保障空间管控体系能够落地和发挥作用。     

总磷总氮在线水质分析仪实际水样测量影响因素分析

总磷总氮在线水质分析仪实际水样测量结果与实验室国标方法测量结果存在着差异,本文分析了影响总磷总氮在线水质分析仪测量结果的因素。     

500 kV单回线路与油气管道安全相对位置研究

为解决交流输电线路对油气管道电磁日益突出的干扰问题,减少电磁干扰带来的危害,针对500 kV单回线路,在电磁暂态仿真软件中建立线路与油气管道模型,综合我国现行关于管道受电磁干扰的安全标准,计算得到线路稳态和暂态时,不同土壤电阻率下线路与管道的安全相对位置。研究结果表明：线路稳态时,随着管道长度增加需增大两者交叉跨越角度或并行安全间距,当管道交叉跨越段长度超过20 km或并行段长度超过25 km时,所需交叉跨越角度或并行安全间距趋于稳定;线路单相短路故障时,不可忽略感性耦合影响。当土壤电阻率不超过50Ω·m,该工况并行安全间距要求小于线路稳态工况,当土壤电阻率大于等于100Ω·m,该工况并行安全间距要求更高;线路雷击工况时,当土壤电阻率不超过50Ω·m,线路与管道无安全间距要求,当土壤电阻率为100,200,500Ω·m时,安全间距分别为8.9,19.8,50.9 m,且管道并行段长度对安全间距几乎无影响。研究结果可为拟建管道工程设计提供参考。     

地铁车辆段试车线噪声源强及传播规律实测分析

以深圳市前海湾车辆段和横岗车辆段试车线为例,对其试车过程中的噪声影响源强及传播情况进行实测分析。结果表明,试车线车辆行驶速度约为36 km/h,噪声源强LeqA约为73 d B左右,试车中噪声最大值约为83 d B;试车线内噪声源的传播并不完全遵循一般的线性递减规律,在距声源30 m范围内,距声源越近,衰减量越小,反之,主要是由于距离声源越远,受到墙体或立柱等阻挡引起的附加衰减就越大。     

在线富集流动注射-火焰原子吸收法中样品空白值的测定

提出了在线富集-FAAS法中样品空白值测定的方法,讨论了不正确的样品空白值对测定结果准确度的影响.     

泰州市生态红线区域划分及保护

从泰州市实际出发,阐述了泰州市生态红线区域的划分方法及保护、补偿措施,讨论了生态红线区域保护存在的问题及原因,并从加快规划编制、加快经济发展方式转型升级、加大投入与宣传教育力度等方面,提出对推进生态红线区域保护的思考。