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ISBN: (纸本)9787564151164

关键词： 邓氏关联度   比较序列   无量纲化处理   参考序列   灰色关联度模型   灰色关联分析   数学分析   创新   金融   财政金融   甘肃  

摘要： 推动科技金融发展,加强科技金融与技术创新之间的关联度,从而提高甘肃技术创新水平的首要问题是选择适合甘肃省情的科技金融发展模式。科学技术部2011年7月发布《国家"十二五"科学和技术发展规划》,提出"十二五"期间,我国将完善科技与金融结合机制,建立多渠道科技融资体系,加快发展服务科技创新的新型金融服务机制,积极探索支持创新的融资方式。甘肃省也陆续出台相应政策以促进科技金融的发展。

关键词： 掌机   掌上游戏机   iPlay   游戏   极限   矩阵   数学分析   NVIDIA  

摘要： 借着Android东风,极限矩阵携手爱奇艺和NVIDIA推出了全新的掌上游戏机:iPlay,该产品硬件规格完胜SHIELD,但价格却仅有1299元,堪称最超值的专业级掌机新秀。极限矩阵iPlay可算是NVIDIA SHIELD的"国产"升级版,不仅将屏幕从5英寸升级到了7英寸,在手掌之间即可呈现颇为震撼的视觉冲击。该掌机按键布局与PSV类似,但除了方向键、□△○×、双摇杆以及LR键外,还提供了Android设备特有的返回、菜单、最近程序等快捷键,凡是使用

摘要： A two-patch model, SEi1,...,EinIiLi, i = 1,2, is used to analyze the spread of tuberculosis, with an arbitrary number n of latently infected compartments in each patch. A fraction of infectious individuals that begun their treatment will not return to the hospital for the examination of sputum. This fact usually occurs in sub-Saharan Africa, due to many reasons. The model incorporates migrations from one patch to another. The existence and uniqueness of the associated equilibria are discussed. A Lyapunov function is used to show that when the basic reproduction ratio is less than one, the disease-free equilibrium is globally and asymptotically stable. When it is greater than one, there exists at least one endemic equilibrium. The local stability of endemic equilibria can be illustrated using numerical simulations. Numerical simulation results are provided to illustrate the theoretical results and analyze the influence of lost sight individuals.

关键词： 辅助函数   构造原理   数学分析   教学应用  

摘要： 构造辅助函数实质上就是分析法的一种技巧,它在数学分析中的命题推证,一些不等式的证明,以及在求条件极值时都有用到.有时候构造辅助函数也是解决数学分析问题的简便而有效的方法之一.

关键词： Expert systems   Artificial intelligence   OpenSim   Sloodle   ARIMA  

摘要： This paper describes the implementation of a virtual World based in GNU OpenSimulator. This program offers a great variety of Web 3.0 ways of work, as it makes possible to visit web sites using avatars created for that purpose. The Universities should be familiar with the creation of new metaverses. That is the reason why a new basic methodology for the creation of a course on expert systems within a metaverse in a virtual campus for e-learning. Besides the creation of a repository or island, it is necessary to make measurements of the performance of the server dedicated to host the system when the number of users of the application grows. In order to forecast the behavior of such servers, ARIMA based time series are used. The auto-correlogrames obtained are analyzed to formulate a statistical model, as close to reality as possible. (C) 2013 Elsevier Ltd. All rights reserved.

关键词： 数学分析教学   否定   反例  

摘要： 探讨了否定在数学分析教学中的作用.主要通过一些实例说明否定在数学分析概念、命题证明和反例教学中的作用.对数学分析的部分教学提出一点建议.

关键词： 数学分析   课程   教学改革  

摘要： 本文讨论在数学分析课堂教学中,通过改进教学理念和方法,能够使学生更好地和更有效地掌握数学分析的教学内容和相关数学思想,培养学生的数学素养和提高学生解决问题的能力,从而提高数学分析课程的教学质量.

关键词： 数学分析   概念   定理   证明  

摘要： "数形结合"是将"数"与"形"的信息相互结合,相互转化的一种思想方法.应用数形结合思想能使复杂问题简单化,抽象问题具体化,从而有助于我们把握数学问题的本质.文中结合具体的实例从"概念教学"",定理教学","证明过程"等几方面分别阐述了《数学分析》教学中对"数形结合"思想的培养.

关键词： DNA damage   G2 phase   Cell cycle arrest  

摘要： A mathematical model for DNA damage induced G2 phase transition is developed by integrating DNA damage signal pathway and G2 regulatory network. We have systematical identified the necessary parameters to be used in the mathematical analysis. Numerical studies are performed to investigate the dynamics of p53-Mdm2 feedback loop and evaluate the effect of DNA damage on G2 phase under various conditions. These studies are carried out to identify the important checkpoint and kinetic dynamics in G2 phase under the presence and absence of DNA damages. The predicted results are in consistent with biological findings. The mathematical model will be able to predict the dynamic behaviors of cellular networks in response to DNA damage in G2 phase under different damage conditions. (C) 2013 Elsevier Inc. All rights reserved.