基于复杂网络的企业创新网络级联失效可靠性模型

在企业创新网络演化模型的基础上提出节点的创新能力概念,构建企业创新网络级联失效可靠性模型,并对动荡、动态平衡和萎缩3种类型网络进行仿真实验研究。仿真数据表明:随机攻击节点条件下,动荡网络的节点失效率高于其他两种网络,但在攻击度中心性较高节点时动态平衡网络的节点级联失效率要高于动荡网络;随着度中心性变小,动态平衡网络的节点失效率逐渐低于动荡网络,而萎缩网络的节点失效率则一直处于最低;除此之外,如果攻击流介数中心性节点,动荡网络的创新能力损失率一直较高。实验结果表明,动荡网络的网络综合创新能力最高,但是可靠性较低。     

基于复杂系统理论的知识型人才流动与产业集群发展动力机制研究

在复杂多变的国内外经济新形势下,知识型人才流动对产业集群发展影响巨大。通过综述复杂系统理论,利用耗散结构理论分析知识型人才流动与产业集群发展系统的自组织形成条件,并在协同学理论分析的基础上,构建出由决策主体、资源、技术、信息、政策(制度)、社会文化六大子系统构成的知识型人才流动与产业集群发展动力机制模型;最后再以探讨该系统动力形成原理与过程为基础,提出保障动力机制系统自组织运作、确保动机机制系统主要控制参量发挥作用、为系统主体提供更加公平的合作与竞争平台、充分发挥各子系统的辅助作用四方面实施意见。     

Technological paradigms and complex technical systems—The case of Smart Homes

This paper explores the concept of technological paradigms in the context of complex technical systems. It presents a review of Thomas Kuhn's notion of scientific paradigms and their early adoption as technological paradigms. This review reveals that an important feature of scientific paradigms has not been fully utilized in the analysis of technological change—the distinction between a paradigm as an exemplar and as a shared group commitment. Using the case of Smart Homes, I advocate that this distinction is critical in understanding the dynamics of open technical systems where multiple industries jointly shape innovation. I discuss the implications with regard to both the concept of technological paradigms and innovation of complex technical systems.     

关于复正定矩阵行列式的不等式

讨论复正定矩阵行列式的估计式,指出并纠正了文[2]的一些错误,得到了一系列复正定矩阵行列式的不等式。     

钾对镍—钴复合氧化物催化剂表面状态及电子性能的影响

用Ｘ光电子能谱研究了镍—钴复合氧化物催化剂添加助剂Ｋ＋后的结构及表面组成,并结合电导率的测定结果与反应性能相关联,考察了它们之间的关系．研究表明：助剂Ｋ＋的掺入对镍—钴尖晶石复合氧化物的电子性能、表面状态均有影响,能使电子激活能降低,元素结合能减小,氧化反应活性增高．     

An efficient adaptive degree-based heuristic algorithm for influence maximization in hypergraphs

Influence maximization (IM) has shown wide applicability in immense fields over the past decades. Previous researches on IM mainly focused on the dyadic relationship but lacked the consideration of higher-order relationship between entities, which has been constantly revealed in many real systems. An adaptive degree-based heuristic algorithm, i.e., Hyper Adaptive Degree Pruning (HADP) which aims to iteratively select nodes with low influence overlap as seeds, is proposed in this work to tackle the IM problem in hypergraphs. Furthermore, we extend algorithms from ordinary networks as baselines. Results on 8 empirical hypergraphs show that HADP surpasses the baselines in terms of both effectiveness and efficiency with a maximally 46.02% improvement. Moreover, we test the effectiveness of our algorithm on synthetic hypergraphs generated by different degree heterogeneity. It shows that the improvement of our algorithm effectiveness increases from 2.66% to 14.67% with the increase of degree heterogeneity, which indicates that HADP shows high performance especially in hypergraphs with high heterogeneity, which is ubiquitous in real-world systems.     

The construction of national identity in South Korea and the tradition of masculinity in Korean Abstract Painting

ABSTRACT

Korean Modern Art History began to be produced in the 1970s, when Western Modernist Art History, based on Formalism, was introduced as a matrix to map the ‘evolution’ of 20th century Korean Art. Korean modern art history is based in the same paradigm as the West, beginning with Impressionism and ‘ending’ with Abstract Expressionism. First introduced to the country from the West immediately after the Korean War, Korean Abstract Expressionism is now deemed as South Korea’s ultimate ‘progressive’ and ‘modern’ art form, a ‘Korean’ painting style combining the Western art form with traditional artistic concepts of ‘Scholarly Painting’ (muninhwa). Japanese‐influenced painting styles originating in the colonial period (1910–45) are rejected as ‘non‐authentic.’ The problem is that Scholarly Painting was a gender and class specific art born from the rigid Confucian culture of pre‐modern Korea, and thus its revival as an ‘ultimate modern’ and ‘Korean’ form has the consequence of locating traditionally‐gendered notions of art and artist at the core of the South’s modern art. This essay uses a Semiotic approach to deconstruct this gendered modernist rhetoric by tracing the emergence of the sign ‘Koreaness’ in South Korean modern art, showing how it is defined within Korean Abstract Painting as an ‘ultimate Korean sign’ and how its use of anti‐Japanese rhetoric covers up the traumatic history of the Korean War.     

光造型中的纤维-树脂复合材料机械性能研究

对于快速成型中的光造型制作工艺,通过在光敏树脂中加入短纤维而制得复合材料.实验发现复合材料制作的样件的弹性模量和拉伸强度明显高于纯树脂固化样件,且其在后固化过程中的收缩量也比后者小.实验结果为光造型系统的制造提供最优的操作参数.     

Research on ultrasonic detection of complex surfaces

INTRODUCTION Parts of complex surfaces have found wide ap-plications today in airplane,ship,automobile industry,medical science,etc.How to detect the internal de-fects of parts of complex surfaces efficiently and ac-curately is an important issue.Due to its special ad-vantages of high sensitivity,good detection,strong penetration ability,and harmlessness to human body,ultrasonic detection has become a most important method of Nondestructive Test(NDT).However,at present in China,to detec…     

谵语与对话--巴赫金对话诗学窥隐

巴赫金的对话理论来源于陀思妥耶夫基小说的复调性、对话性，不过却否认与疯癫之间的联系，显然是不符合文本事实的。因为第一，巴赫金恰恰是在陀氏的而非其他作家的作品中发现了“对话”的，而疯癫却正是陀氏小说明显的特征；第二，实际上，巴氏所举的“对话”例子，从形式上看并不是“对话”而是某种“拷问”，从内容上看，更象精神分裂病患者的谵语。据此，可以说明“对话”与“疯癫”之间的联系并由此角度审视“对话”的价值。