河南省体育旅游者消费行为的现状调查

本文采用了文献资料法、问卷调查法及数理统计法,对河南省1100名体育旅游者的消费动机、行为方式及消费水平进行了调查分析,旨在为河南省体育旅游业的开展提供参考依据.     

中国技术创新理论前沿共词知识图谱分析

运用科学计量学中的共词分析方法及可视化技术,对中国技术创新理论研究的19个代表性期刊进行了科学计量分析。研究得出,当前中国技术创新理论研究存在8个前沿知识群,其研究主题主要集中在技术创新与知识管理、人力资源管理的关系,企业技术创新与风险投资、知识创新、制度创新关系,企业战略管理、高新技术企业、产业集群、制造业的创新能力,技术创新能力评价,公司治理与资本市场的关系,科技创新的评价,企业的管理模式与企业绩效,企业信息化与科研管理关系等,并对研究结果进行讨论与展望。     

开放存取期刊质量评价指标研究

针对我国最近六年来发表的开放存取期刊研究论文进行统计,分析开放存取期刊质量评价的研究现状,对开放存取期刊质量评价的定性与定量指标进行研究,指出在建立开放存取期刊评价指标中急需解决的问题。      

术语标准研制方法及在信息与文献领域中的应用

介绍术语3种标准研制方法及ISO/TC 37制定的主要术语方法论标准,分析总结ISO 5127信息与文献术语国际标准制定中国际专家提出的增删词、结构化显示、概念框架一致性等意见和建议,提出国际标准一致性、术语选择、国际意见等意见处理原则,最后设计ISO 5127术语国际标准维护和发展的结构化SKOS显示方案。     

基于文献数据规律的机构知识库数据转换模型研究

针对高校图书馆机构知识库构建中普遍存在的数据来源与组织难题,通过文献数据预处理和数据模型的设计,将高校科研成果的文献数据原貌保存到机构知识库中,并实现文献实体与高校实体间的精准关联。基于模型继续探索文献数据规律,发现题录实体分布中普遍存在的“二八”定律现象对于拥有海量、动态科研成果数据的机构知识库的管理和运营具有主要参考价值。     

我国企业海外并购价值创造决定因素实证研究

本研究利用296个中国企业海外并购事件的相关数据,统计分析了17个因素对我国企业海外并购价值创造的决定作用.结果表明:并购企业所有权性质与价值创造显著负相关,即民营企业并购绩效显著优于国有企业;并购双方相对规模、文化距离以及治理因素中的并购目标对抗董事权力指数对海外并购价值创造具有显著正向预测作用;美元对人民币汇率并购交易值以及治理因素中的集中度、法律体系等对我国企业海外并购累计超常收益有显著负面影响.此研究结果对于引导我国企业有效进行海外并购,推动“走出去”战略有效实施具有重要价值.     

Event-triggered backstepping control for attitude stabilization of spacecraft

To decrease the communication frequency between the controller and the actuator, this paper addresses the spacecraft attitude control problem by adopting the event-triggered strategy. First of all, a backstepping-based inverse optimal attitude control law is proposed, where both the virtual control law and the actual control law are respectively optimal with respect to certain cost functionals. Then, an event-triggered scheme is proposed to realize the obtained inverse optimal attitude control law. By designing the event triggering mechanism elaborately, it is guaranteed that the trivial solution of the closed-loop system is globally exponentially stable and there is no Zeno phenomenon in the closed-loop system. Further, the obtained event-triggered attitude control law is modified and extended to the more general case when the disturbance torque cannot be ignored. It is proved that all states of the closed-loop system are bounded, the attitude error can be made arbitrarily small ultimately by choosing appropriate design parameters and the Zeno phenomenon is excluded in the closed-loop system. In the proposed event-triggered attitude control approaches, the control signal transmitted from the controller to the actuator is only updated at the triggered time instant when the accumulated error exceeds the threshold defined elaborately. Simulation results show that by using the proposed event-triggered attitude control approach, the communication burden can be significantly reduced compared with the traditional spacecraft control schemes realized in the time-triggered way.     

State feedback design for set stabilization of probabilistic Boolean control networks

Set stabilization of probabilistic Boolean control networks (PBCNs) is investigated in this paper and some interesting results are derived. The main results consist of three parts. (1) A definition of set stabilizability with probability one by closed-loop control is proposed for PBCNs, which is not a natural extension from deterministic Boolean control networks to PBCNs due to the random feature of PBCNs. (2) A necessary and sufficient set stabilizability condition is provided for PBCNs. (3) An algorithm for designing a state feedback controller is developed. It is guaranteed that all designed controllers can stabilize a PBCN to a given subset with probability one. The design method is constructive, so it is convenient to use this method in practical application. The results derived above are fundamental and important, since based on them many problems about PBCNs can be solved, for example partial stabilization, synchronization, and so on. Finally, a practical example is employed to show the effectiveness of our results.     

考虑电子口碑累积效果的手机APP BASS扩散过程的研究

随着移动互联网的飞速发展和智能手机的普及,手机APP作为智能手机接入移动互联网最重要的入口,与人们的生活息息相关。探究移动APP的推广及扩散机理,对企业制定IT营销及开发策略具有重要的意义。本文在经典BASS模型的基础上,引入了电子口碑这一影响因素,利用多智能体模拟技术,借助建模软件AnyLogic,建立了手机APP在移动互联网中的仿真扩散模型。对比实际案例中手机APP的扩散情况,本文验证了模型的有效性。由于电子口碑的累积效果,APP的扩散过程与传统产品的扩散过程明显不同,不同的电子口碑累积效果,将导致APP不同的扩散趋势。     

知识产权证券化资产池构建的影响因素

通过发放问卷的形式,针对在将知识产权进行证券化的过程中资产池创建的相关影响因素进行研究。共选取30个主要影响因素指标并进行筛选与排序,建立关于资产池创建影响因素的评价模型,最终具体分为:基础资产自身性质、基础资产归属、基础资产风险、基础资产市场因素、被许可人及管理人相关影响、证券化后影响因素六类,为知识产权证券化在我国进一步发展提供理论依据。