3D simulation of storm surge disaster based on scenario analysis

The occurrence of storm surge disaster is often accompanied with floodplain, overflow, dike breach and other complex phenomena, while current studies on storm surge flooding are more concentrated on the 1D/2D numerical simulation of single disaster scenario(floodplain, overflow or dike breach), ignoring the composite effects of various phenomena. Therefore, considering the uncertainty in the disaster process of storm surge, scenario analysis was firstly proposed to identify the composite disaster scenario including multiple phenomena by analyzing key driving forces, building scenario matrix and deducing situation logic. Secondly, by combining the advantages of k-ω and k-ε models in the wall treatment, a shear stress transmission k-ω model coupled with VOF was proposed to simulate the 3D flood routing for storm surge disaster. Thirdly, risk degree was introduced to make the risk analysis of storm surge disaster. Finally, based on the scenario analysis, four scenarios with different storm surge intensity(100-year and 200-year frequency) were identified in Tianjin Binhai New Area. Then, 3D numerical simulation and risk map were made for the case.     

关于我国新闻舆论监督对策的思考

我国的新闻舆论监督虽然取得长足发展，但是目前由于受法律不健全，记者的知情权、监督权缺乏实际保障．地方保护主义严重等因素制约，影响这项工作的开展。为此，我们采取的对策应是大处着眼，小处着手，多为群众解难题，不为政府出难题，充分发挥新闻舆论监督的社会教育作用。     

关于平行平均曲率向量的子流形(英文)

研究了空间形中具有平行平均曲率向量的子流形上共形度量的数量曲率的上界和超曲面的稳定性.     

Polymerization of methyl methacrylate with ethylene bridged heterodinuclear metallocene of samarium and titanium-study on synergism and kinetics

Comparison of MMA polymerization results with samarocene chloride, titanocene chloride and the title heterodinuclear (Sm−Ti) catalyst, respectively, showed synergism in the Sm-Ligand-Ti system, which obviously influenced the polymerization behaviors, for example, of yeilding higher activity and higher molecular weight polymer. Kinetic studies on polymerization of MMA with ethylene bridged samarocene and titanocene chloride/Al(i-Bu)₃ showed that the polymerization rate was first-order on the catalyst concentration, and 1.9-order on the monomer. The overall activation energy measured was 52.8 kJ/mol. Project supported by NSFC (No. 20074028), and SINOPEC(X598037).     

I2C总线控制彩电故障诊断的基本思路

因I^2C总线控制彩电技术较新、难，对大多数维修人员来说当它出现故障时很难准确判断。就此，文章在介绍I^2C总线控制彩电的特点与辨别方法的基础上，从“软”、“硬”两方面讨论了I^2C总线控制彩电故障判断基本思路。     

信息熵在多项选择题质量分析中的应用

多项选择题是各种测试中使用的较为广泛的题型之一,施测后对题目各选项的有效性做出判断可为评价测试质量提供重要参考依据。本文由分析多项选择问题的信息熵入手,给出多项选择题等价选法个数d的计算公式。同时,对多项选择题之间的质量比较问题,给出了使用相对熵的比较方法。     

归因理论在培养大学生科学择业观中的应用

当前在大学生中间流行着形形色色的不良择业心态，这些不良择业心态严重影响着大学生科学择业观的养成，也不利于其顺利就业。运角归因理论，有针对性地分析大学生不良的择业心态，打造适合学生自身发展特点的科学择业观,有利于大学生形成具有长远竞争力的“就业力”。     

做大佛寿文化 加快旅游发展

旅游业综合性强,关联度高,是当今世界发展最快、前景最广的一项朝阳产业。青州是一座历史文化古城,旅游资源丰富,要实现旅游业的大发展,必须打造独具特色的旅游品牌。本文阐述了打造青州旅游品牌的资源优势、工作思路和措施。     

开展课外活动培养语文素养

要提高学生的语文素养，仅靠课堂时间是远远不够的，更重要的还要和课外活动有机地结合起来。根据笔者多年的教学实践，认为开展语文课外活动主要有以下途径：课外阅读、课外写作、课外听说活动、课外实践活动．     

企业家的非理性因素

现代人才学证明,企业家的管理才能是由两部分构成:一是理性因素,如注意力、观察力、记忆力、想象力和思维能力等;二是非理性因素,如冲动性、自控性、独立性、坚持性等。一个人的行动,除了受理性因素支配外,还往往要受到非理性因素的支配。企业家的管理行为是由理性与非理性两种因素相结合的结果。同一种性格在不同的客观环