现代企业安全工作中的问题及对策

对现代企业安全工作中存在的问题做了简要的阐述，并通过对当前安全形势的分析，提出了现阶段安全工作中应采取的对策。     

Impact of the composition of combustion generated fine particles on epithelial cell toxicity: influences of metals on metabolism

Inhaled airborne particulate matter (PM) represents a potentially significant health hazard to humans. Exposure to PM strongly correlates with pulmonary inflammation and incidences of severe respiratory distress, including increased hospital admissions for breathing disorders, asthma, emphysema, and chronic bronchitis. PM generated from the combustion of fuel oils and coals contain a number of water-soluble transition metals including Fe, V, and Zn.

We have evaluated the impact of PM types with varying composition collected from the combustion of oils and coals on the health and metabolism of lung cell cultures. Three colorimetric assays (sulforhodamine B (SRB), Janus green, and MTT) have been adapted to quantify the impact of PM on rat lung alveolar type II epithelial cells (RLE-6TN cells). The PM toxicity metrics evaluated were inhibition of cell proliferation (SRB and Janus green) and inhibition of cellular metabolism (MTT). Cell proliferation is inhibited in a consistent dose-dependent manner by PM concentrations from 25 to 250 μg/ml. At a level of 100 μg/ml, oil-derived PM diminishes cell metabolism by as much as 40% relative to controls; the degree of inhibition is strongly dependent on PM particle size and metal content. Conversely, coal-derived PM at the same dosage diminishes cell metabolism by no more than 20% relative to controls. All three assays provide highly repeatable results and consistent toxicity rankings of the PMs evaluated. Overall, metabolic inhibition as measured by the MTT assay was deemed the most appropriate metric for PM toxicity, primarily due to its applicability with in vivo-like confluent cell monolayers.     

弘扬安全文化 促进班组标准化建设

论述企业安全文化在企业生产经营中的作用,介绍了安全文化在班组标准化建设中产生的影响及其对指导班组建设的贡献。事实表明,安全文化是群众需要的安全文化,是具有强大生命力的企业文化。     

哑铃湾网箱养殖环境容量研究

在综述分析前人关于网箱养殖污染负荷计算方法的基础上，借助网箱养殖物质平衡方程和实地监测实验数据，建立了哑铃湾网箱养殖污染负荷数学模型，并在模型中首次考虑了底泥累积污染影响。一方面为计算网箱养殖环境容量提供理论基础和计算参数，另一方面也为国内外相关的计算提供方法和参考。     

企业安全文化实践与创新探讨

企业安全文化是确保企业安全运行的重要保障因素之一。针对某油田企业在安全文化建设新阶段中表现出的不足,从渗透作用、权责体系、精细管理、全员参与4个方面进行了有益的探索创新,并深入实践,打造出了一套切实可行的安全管理体系,为同类型企业安全文化建设提供参考借鉴。     

略论我校校园文化建设

校园文化建设是当今学校建设的重要组成部分。近几年,我校在校园文化建设中取得了丰硕成果,同时也获得了一些启示和经验。努力建设优秀校园文化、培育学生精英意识是我们追求的目标。     

铝电解含氟烟气治理技术

铝电解过程中产生大量含氟烟气，主要介绍目前国内几家铝厂所采用的含氟烟气治理技术，并对实际工作中存在的问题进行分析，供在类似工程中参考借鉴     

生物接触氧化处理槽内水流混掺特性的研究

对生物接触氧化处理槽内水流的混掺特性进行了分析，推导提出了水流完全混掺的判断条件，短流水量及处理槽长度的计算式，并用试验值和一实际工程现场测试结果进行了验证，结果表明，计算式与实例结果吻合较好。     

民族旅游可持续发展与生态旅游理念

阐述了民族旅游开发对民族文化产生的负面影响及产生这些影响的原因，在辨证看待民族文化保护与研究民族旅游发展轨迹的基础上，探讨了民族旅游的可持续发展理念。通过与生态旅游的对比，认为两者的理念本质上是一致的。生态旅游的理念对民族旅游的可持续发展有着积极的指导意义。