复杂网络鲁棒性的一种基本参数

文章利用复杂网络传播与响应,研究了对复杂网络鲁棒性的影响参数。研究结果表明,复杂网络的相互作用系数,可以作为衡量复杂网络鲁棒性的一种基本参数。     

复杂网络的混沌同步及其应用

本文以复杂网络为背景,基于Lyapunov稳定性理论,研究了全局耦合网络的渐近同步,并提出一种全局混沌同步方案.在此基础上,将其应用到了保密通信中,将有用信号与混沌系统中的状态变量调和在一起,然后将混合信号传送到接收端,当发送系统与接收系统同步以后,在接收端恢复出有用信号.最后以Lorenz系统为节点进行数值仿真,验证了结论的可靠性.     

面向复杂学习的网络教学环境研究

复杂学习是一种为达成多种学习目标的综合学习。它不是孤立知识碎片的简单组合,而是将知识、技能和态度进行协调与综合从而成为一个整体,并使之能够灵活运用在真实情境中以解决实际问题。网络教学环境所具备的灵活、开放、可共享、支持个性化学习等优势对复杂学习的进行十分有利,但同时,这些优势本身并不能保证学习者适应这种学习形式。针对复杂学习特点,在网络教学环境的设计上应：有利于真实任务情境的呈现、有利于知识与教学资源的结构化组织、有利于多元化的知识表征和应用、有利于多用户角色的交流互动、有利于进度监控与反馈。     

On the "Oedipus Complex" in Sons and Lovers—Mother is a lover of her son

Sons and Lovers is one of Lawrence’s most famous novels.It mainly concerns about the love affairs among the main character—Paul,his mother and his two girlfriends.The mother’s strange love has affected the boys for a long time,which even has made him lose the ability to love other girls.As a result,Paul gradually has the"Oedipus Complex"towards his mother,and it has influenced the whole lifetime of himself.During the competition of grasp the heart of Paul,Miriam and Clara are all the losers,while they both can’t drag Paul out of the influence from his mother.It is not until the death of his mother does Paul finally escape from the control of his mother.All the origins can be concluded into one thing—that is the Paul’s"Oedipus Complex"towards his mother.What is the"Oedipus Complex",and how does it reflect in the main content?How does it influence the emotions of Paul step by step?This essay will elaborate it in detail.     

Genetics of complex diseases

Modern genetics so far has had its major impact on medicine by defining diseases caused by visible chromosomal defects and by finding mutant genes that interfere with the specific function of a single gene and thereby cause“Mendelian”or“single gene”diseases(over1500detected).Most of such diseases are rare and can often be initially identified by char-acteristic patterns of transmission(dominant,reces-sive,X-linked).Many common chronic diseases with adult onset show familial aggregation tha…     

复杂产品生产能力研究：一个基于IPO范式的思考

复杂产品是“中国制造2025”的重要组成部分之一,已日益成为现代经济的“技术资产骨架”和国家经济实力的象征。鉴于目前尚无成果专门针对复杂产品生产能力展开研究,本文从经济学“投入-生产-产出”（IPO）范式的过程视角,探讨了以创新为核心思想的复杂产品生产能力（包括技术能力和管理能力）,并构建了从资源投入、组织范式到复杂产品生产,再到生产绩效产出的全过程能力分析框架。分析表明,相关分阶段研究理论基础已经比较清晰,但国家复杂产品生产能力是一个系统,需要用系统思维方式构建更为宏大的理论,本文迈出了起始的一步;以及,今后对国家复杂产品生产能力的研究,更要体现政策研究的规范性、描述性和工具性的统一。     

Adaptive synchronization of multi-agent systems via variable impulsive control

This paper mainly focuses on the adaptive synchronization problem of multi-agent systems via distributed impulsive control method. Different from the existing investigations of impulsive synchronization with fixed time impulsive inputs, the proposed distributed variable impulsive protocol allows that the impulsive inputs are chosen within a time period (namely impulsive time window) which can be described by the distances of the left (right) endpoints or the centers between two adjacent impulsive time windows. Obviously, this kind of flexible control scheme is more effective in practical systems (especially for the complex environment with physical restrictions). Moreover, the proposed adaptive control technique is helpful to solve the problem with uncertain system parameters. By means of Lyapunov stability theory, impulsive differential equations and adaptive control technique, three sufficient impulsive consensus conditions are given to realize the synchronization of a class of multi-agent nonlinear systems. Finally, two numerical simulations are provided to illustrate the validity of the theoretical analysis.     

园区循环经济系统有序度研究:基于复杂网络结构熵视角

为支持建立系统性的园区循环化改造评价方法,参考天然生态系统,在系统复杂网络建模基础上,选用度分布熵、吴氏结构熵和蔡氏结构熵研究循环化改造中系统的网络结构熵、项目平均熵贡献率、结构熵与网络拓扑参数的相关性,主要结论如下:(1)伴随网络规模增加和结构演化,系统网络结构熵上升,消除规模因素后项目平均熵贡献率下降,系统演化的有序度上升;(2)从点、边异构性同时评价系统有序度的吴氏结构熵更优;(3)园区循环经济系统复杂网络的度分布能起到与结构熵近似的有序度评价效果且形式简洁;(4)园区循环经济系统能量流、物质流网络兼有随机网络和星型网络拓扑特征。