石化特种设备管理现状及风险控制对策

为加强特种设备管理,提高风险控制水平,对中国特种设备的管理法规标准体系、中国石化特种设备管理现状及存在的问题,进行了讨论和思考,并提出了石化特种设备风险控制对策。     

高含硫气田用电阻探针的适用性改造

针对电阻探针在普光高含硫气田腐蚀监测系统应用中出现了大量本体焊接部位断裂、断面密封失效现象,测试分析显示高含硫、高压及高流速冲击震动导致焊缝腐蚀疲劳失效和密封材料老化失效。通过采用锻造态不锈钢棒料整体制造消除了电阻探针壳体的焊接,采用金属密封复合抗硫密封胶对测试片断面密封方式进行改进优化。现场应用表明,改进后的电阻探针不再出现断裂,密封失效现象大幅减少,使用寿命整体提高3倍以上。     

户外长距离运动中雾霾影响的指标分析研究

居民在雾霾天气进行户外长距离运动会使心肺功能受到影响,对户外长距离运动中雾霾影响的指标进行分析,从人数、心情和健康三个角度研究,研究方法为调查对比法,通过分析在雾霾天气下和正常天气下运动员的不同表现,验证雾霾对户外长距离运动的影响。研究结果表明,雾霾天气会打消居民进行户外长距离运动的积极性,减少运动人数,同时使人们感到抑郁烦闷,心情低落。长时间在雾霾天气下运动心肺功能也会受到影响,调查结果具有统计学意义。     

好氧颗粒污泥对有机物吸附类型的研究

为探索好氧颗粒污泥对有机物的去除机制,进行好氧颗粒污泥对有机物的吸附性能及吸附类型研究,在实验室条件下,采用动态吸附方式,利用SBAR反应器分析好氧颗粒污泥对有机物的去除情况。结果表明,好氧颗粒污泥存在初期吸附作用,最佳吸附时间为30~45 min,COD去处率60%;通过对失活前后好氧颗粒污泥对有机物吸附性能测定以及红外光谱分析,探究好氧颗粒污泥对有机物的吸附类型,表明好氧颗粒污泥对有机物的吸附是一个包含生物吸附和化学吸附的复杂过程。     

环保型民用建筑墙体节能工程施工质量监督策略研究

环保型民用建筑墙体节能工程施工的材料、设备、工艺复杂,需要进行建筑施工优化管理和质量监督,从而确保施工进度和工程质量,对环保型民用建筑墙体节能工程施工实施全过程质量控制,加强墙体施工的质量监督和管理。对建筑项目做好工程施工质量的风险预估,结合材料和设备、环境等方面的影响因素进行工程质量技术指导和风险控制。在施工过程中进行质量监督的动态过程控制,按照标准和规范,进行环保型节能建筑墙体施工质量的量化管理,使得建筑施工质量符合规范标准要求。     

基于医疗大数据的空气污染类疾病信息分析研究

世界卫生组织表示,空气污染为造成全球疾病负担的一项重要因素,能够导致心血管疾病、呼吸系统疾病等各种疾病的发生,空气污染问题已经成为公共卫生领域关注的重点问题,对基于医疗大数据的空气污染类疾病信息进行分析。利用半参数广义相加的泊松回归模型,在控制时间、长期趋势、气象因素等一些复杂条件的基础上,对2012年1月1日至2016年12月31日,某市空气中SO2、PM10和NO2等一些主要空气污染物的监测浓度值与呼吸系统疾病(肺炎以及支气管炎与哮喘)住院人数的相关性进行研究,研究结果表明,空气颗粒物PM10对患病率的影响相对于气态污染物SO2、NO2更为严重。     

Separation of selected PAHs by using high performance capillary electrophoresis with modifiers

The effect of varying SDS concentration in a micellar electrokinetic capillary chromatographic system (MECC) is investigated. In addition, the introduction of -cyclodextrin as modifier to the electrophoretic medium, containing SDS and a phosphate-borate buffer, is shown to give satisfactory separation of the seven selected PAHs. The separation efficiency is increased with the addition of -cyclodextrin.     

Air Pollution in Singapore: Its Multielemental Aspect as Measured by Nuclear Analytical Techniques

Aerosol samples were collected in 1994 in Singapore on two occasions: once in June during the normal meteorological conditions and later in October during a long haze period caused by the heavy forest fire in Indonesia. Filtration and impaction collection methods were used simultaneously so that detailed elemental analysis of bulk as well as of different size fractions could be performed. Accelerator based nuclear analytical techniques such as Particle Induced X-Ray Emission (PIXE), Rutherford Backscattering (RBS) and Nuclear Microscopy (NM) were used for analysis. These techniques are fast, truly multielemental and perfectly suited for routine analysis of a large number of aerosol samples. Typically all samples were analysed for the following 24 elements: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Mn, Cr, Fe, Co, Ni, Cu, Zn, Ga, As, Br, Rb, Sr and Pb. Detection limits for bulk analysis were generally below ng/m3 and for single particle analysis absolute detectable mass was approximately 10-17 g. Additionally, trace elements such as Cd, Sn, Sb and Ba whose characteristic X-ray lines were normally "obscured" by the lines of other more abundant elements, were detected when analysing by nuclear microscope in single particle mode.Judging by the average concentrations of lead and sulphur which are good indicators of industrial component of air pollution the situation in Singapore is satisfactory. Pb was typically found in concentrations of 5 to 50 ng/m3 and sulphur in concentrations of 1 to 2 µg/m3. These concentrations are well below limits set by the World Health Organisation (1500 ng/m3 and 40 µg/m3, respectively). On the other hand during the haze period the average concentrations of elements like S, K, Ti, V, Mn, Ni, As and Pb were found to be 3 to 6 times higher than usual. Results are presented and discussed.     

水中Mg~(2+)的测试管快速测定

研制了一种测定水中Mg2 + 的测试管 ,测定范围为 0 .5mg/L～ 2 .0mg/L。该测试管适用于现场应急监测 ,具有快速、简便、抗干扰能力强和价格低廉等特点     

连续采样与五日法采样效果及费用的对比分析

通过对连续采样与五日法采样五种方法监测结果及所需费用的比较，得出连续采样方法监测结果更具有代表性，合理性，一次性投资大，但运行费用并不高的结论。