Effect of the amplification factor on seismic stability of expanded municipal solid waste landfills using the pseudo-dynamic method

The evaluation of the seismic stability of an expanded municipal solid waste （MSW） landfill is very important in seismic prone zones. In this paper, the pseudo-dynamic method was used to calculate the average safety factor for the expanded landfill with a trapezoidal berm based on under-berm failure conditions. Furthermore, the effects of the variation of parameters such as the amplification factor, seismic coefficient, height of berm, angle of back slope of berm, and depth of waste mass at the back slope on the seismic stability of the landfill were studied. The results indicated that the influences of the vertical seismic coefficient, height of berm, and angle of the back slope of the berm on the seismic stability of the landfill are weakened as the amplification factor increases, but the influence of the horizontal seismic coefficient on the seismic stability of the landfill is strengthened. On the other hand, a certain ratio of the height of the waste mass above the back slope to the depth of waste mass at the back slope, or the reasonable consideration of the magnitude of the amplification factor will be conducive to the seismic design of the landfill. In addition, the results obtained by the pseudo-static and pseudo-dynamic methods were compared.     

Effects of Huangqi and bear bile on recurrent parotitis in children: a new clinical approach

Objective:To evaluate the pharmacological effects of traditional Chinese medicine,bear bile capsule and Huangqi granule,on recurrent parotitis in children.Methods:In this prospective,controlled,and randomized study,a total of 151 young children were divided into three groups:Group A included massaging the children’s parotid region and melting vitamin C in their mouth daily;Group B included swallowing bear bile capsule and Huangqi granule daily;and Group C included massages and vitamin C as prescribed in Group A,and traditional Chinese medicine as prescribed in Group B.Children were treated individually for one month and then a follow-up study was conducted for 1 to 3.5 years.Analysis of variance(ANOVA) and Ridit analysis were employed for statistical analysis.Results:The recurrence rate decreased in every group,but was significantly more in Groups B and C when compared to Group A.The recurrences significantly decreased(P<0.01) in Group B and their recovery rate was as high as 63%,significantly better than those of the other groups(P<0.01).Conclusions:Huangqi and bear bile could be a novel clinical approach for treating recurrent parotitis in children.     

我国商业银行应如何保持适度负债

商业银行是现代社会经济体系中经营货币的企业和资金供需方的媒介,但仅靠商业银行自身的资本远远不能满足其资产活动的需要。这个资金缺口的弥补有赖于银行的负债业务,负债业务提供了商业银行绝大部分资金来源。因此负债管理在商业银行的经营管理中占据着重要的地位。本文从我国商业银行负债业务现状入手,对我国商业银行保持适度的流动性提出相应的对策和建议。     

高校专业实习的改革思路与实践

以华北电力大学应用化学专业为例,介绍了实习改革的一些做法。华北电力大学应用化学专业基于化学、偏重应用,对实践动手能力有较高要求,因此提出在大实习观的基础上,开发多方面的实习途径,包括实地实习、仿真实习、多媒体实习、书面实习等,并实行灵活多样的考核方式,综合考查学生的实习效果。     

CERNET用户接入国外数据库的问题及对策

对在从事推广、技术等工作实践中, 各高校具体使用国外电子文献数据库资源时所遇到的一些问题及障碍做出初步分析, 并提出一些解决措施, 以供我国高等院校合理使用国外电子文献数据库资源提供参考。     

竞争情报与反竞争情报相关概念及关系探讨

本文着重分析了竞争情报和反竞争情报的内涵和相关概念,从内容和整体两个方面剖析了两者之间的联系以及区剐,认为在企业的经济活动中,竞争情报和反竞争情报应相辅相成、辩证统一、有机整合,要两手抓,两手都要硬,在此基础上提出了企业竞争情报系统的功能模型.     

我国科技人才影响因子评价方案研究——基于医学科技的实证研究/FONT

科学的评价科技人才不仅有助于人才的发现和任用,更有助于人才的成长进步。但如何评价一个科技人才？目前尚无科学统一的方案。本文以医学专业人才为例,结合影响因子法、加权平均法、多数据库法、布拉德福定律法、贡献法、同行专家评议法等评价方法,从医学科技人才科技论文、论文被引、科技成果、科技进步奖、图书专著、发明专利、承担科研课题、学术任职、新药研发等主要科研活动项目出发,提出了定量评价人才的公式、指标,并初步构建了科技人才科技影响力的综合评价模式。     

对严济慈图书馆管理委员会模式的理性分析与思考

介绍严济慈图书馆的产生背景和运作体制,从权力分配、治理结构、制度设计三大方面,对该馆管理委员会模式予以理性分析,结合现行公共图书馆存在的治理现状与相关问题,对照《关于深化文化体制改革的若干意见》中的精神,得出委员会制模式值得公共图书馆借鉴的重要结论;指出公共图书馆推行委员会制治理模式将有利于实践和构建图书馆公共文化服务体系,最终有利于逐步实现与保障广大人民群众基本文化权益。     

试论我国通货紧缩的成因及对策

通货紧缩是目前我国经济面临的一大问题,我们必须认识到通货紧缩对经济发展的影响,以便采取措施治理通货紧缩,保证国民经济持续健康地发展.     

自由能与电极电势初探

本讨论了自由能与不同类型的电对的电极电势的关系。