寻求理性——浅析《卡斯特桥市长》

使用弗莱、鲍桑葵、克莉丝蒂娃等理论家的理论及叙述学理论,分析哈代的著作《卡斯特桥市长》,在一定程度上消解了肖尔瓦特对这部作品女主人公的定论,并通过弗莱原型移位理论来分析在理性双重缺失的境遇下,叙述者所追求的理想生活态度。     

低重复率稿件中的学术不端行为检测与防范

重复率低却存在抄袭的稿件,其原因可能为单一的检测系统存在漏洞,新发表的论文上传数据库存在时间差,作者对稿件的有意识“修饰”,以及网络时代造假手段多样化.为此,文中提出以下措施:使用多种数据库进行文字检测,从查重报告中发现问题,建立有效的审稿专家数据库、网站教育和警示,充分利用网络资源,加快稿件处理进程,增强编辑的责任意识等,以利于更好地防范学术不端行为.     

《聊斋志异》"名状"现象述略

对《聊斋志异》中名词用作装语的现象作究尽性考察和陈述，并据此对有关通说稍作补正。     

课改背景下农村中小学校长的新思维

农村中小学在新课改的进程中面临诸多问题,其解决的关键在校长。在新课改背景下农村中小学校长应具有新思维,即清晰的发展战略观、正确的教育资源观、客观的学生观,以推动新课改实践在农村地区的深入与发展。     

几类不等式的证明

不等式的证明在高等数学通用教材中遇到的较多，学生对它的处理往往无从下手，主要是因为由条件向结论过渡的解题方向不易确定，但是高等数学中不等式的证明还是有一些规律可循的。本文就不等式的证明归纳出了证明方法和基本思路。     

A study of airfoil parameterization,modeling, and optimization based on the computational fluid dynamics method

An excellent airfoil with a high lift-to-drag ratio may decrease oil consumption and enhance the voyage. Based on NACA 0012, an improved airfoil is explored in this paper. The class/shape function transformation has been proved to be a good method for airfoil parameterization, and in this paper it is modified to improve imitation accuracy. The computational fluid dynamics method is applied to obtain numerically the aerodynamic parameters of the parameterized airfoil, and the result is proved credible by comparison with available experimental data in the open literature. A polynomial-based response surface model and the uniform Latin hypercube sampling method are employed to decrease computational cost. Finally, the nonlinear programming by quadratic Lagrangian method is utilized to modify the multi-island genetic algorithm, which has an improved optimization effect than the method used on its own. The obtained result shows that the modified class/shape function transformation method produces a better imitation of an airfoil in the nose and tail regions than the original method, and that it will satisfy the tolerance zone of the model in a wind tunnel. The response surface model based on the uniform Latin hypercube sampling method gives an accurate prediction of the lift-to-drag ratio with changes in the design variables. The numerical result of the flow around the airfoil shows reasonable agreement with the experimental data graphically and quantitatively. Ultimately, an airfoil with better capacity than the original one is acquired using the multi-island genetic algorithm based nonlinear programming by quadratic Lagrangian optimization method. The pressure contours and lift-to-drag ratio along with the attack angle have been compared with those of the original airfoil, and the results demonstrate the strength of the optimized airfoil. The process for exploring an improved airfoil through parameterization to optimization is worth referencing in future work.     

构建有海大特色的机电类专业人才培养体系

文章论述了我国机电类专业人才需求现状和所覆盖的技术岗位领域。结合北京市光机电一体化的发展趋势 ,分析了海淀走读大学机电类人才培养规格和课程体系建设的特点。     

关于中学化学探究实验的研究

实验教学是化学教学中非常重要的环节,但在中学化学课本里有些实验的设计不够严密。本文根据笔者平时的实际教学,对探究实验“对人体吸入的空气和呼出的气体的探究”的两个步骤做出了改进,从而使实验更准确、更直观。     

宁波民间戏曲文化的现状与对策

宁波作为历史文化名城,在历史上积累了丰厚的民间戏曲文化。但是,随着经济全球化和社会生活现代化大潮的强烈冲击,宁波民间戏曲文化濒危,抢救、保护和开发利用这些宝贵的遗产已成为我们必须面对的一项重大课题。为此,在对宁波民间戏曲文化的现状进行描述的同时,提出了保护民间戏曲文化的原则与对策。     

义务教育教辅乱象的成因及治理策略分析

义务教育阶段的教辅乱象一直存在,不论是中央不断发文对其进行规制,还是地方教育行政部门对其从严整治,都没能从根本上解决这一问题.教辅乱象存在的主要原因是教辅材料评议推荐中部门与地方利益保护的存在,出版、发行门槛过高极易造成行业垄断,"小升初"和"初升高"激烈的竞争导致"一科多辅"现象盛行,法律责任不明确、追责不力.通过确保教辅材料评议推荐程序公正、信息公开,杜绝"教辅授权"导致的行业垄断,降低"教辅发行"门槛,将"一辅"纳入公共财政以防止"一科多辅"及加大追责力度等措施,能有效解决教辅乱象引发的各种问题.