Observability of Boolean control networks with stochastic disturbances

In this paper, the observability problem of Boolean control networks (BCNs) with stochastic disturbances is investigated via two kinds of control schemes: deterministic control and state feedback control. Firstly, based on the proposed indicator matrix, a simplified system of the original augmented Boolean system is constructed. Based on the analysis of the auxiliary system, observability of the original BCN is converted to determine whether an observable set can be reached from another unobservable set. After that, some necessary and sufficient conditions are obtained to judge the observability of BCNs. At the same time, two algorithms are proposed for designing these two types of control sequences. Finally, numerical simulations are also provided to demonstrate feasibility of the theoretical results.     

Observability of singular Boolean control networks with state delays

This paper investigates the observability of singular Boolean control networks (SBCNs) with state delays. First, via Cheng product, the considered system is converted into its algebraic form. Then, under the uniqueness of the solution, two methods are proposed to transform the system into a general Boolean control network (BCN). Therefore, the considered system’s observability is equivalent to the BCN’s observability. Subsequently, the restricted input-state incidence matrix is introduced and some necessary and sufficient conditions are presented for the observability of BCNs with state delays. Finally, two illustrative examples are presented to show that the main results obtained are effective in analyzing the observability of SBCNs with state delays.     

合约可观察性与异质产品横向兼并效应

针对一部线性可观察性合约与不可观察性(保密)合约,比较分析了供应商、零售商横向兼并集中度提高对消费者福利的影响。结果表明:(1)当合约可观察时,供应商横向兼并对消费者产生不利影响,而零售商横向兼并对消费者产生的影响取决于产品替代性程度大小,若产品替代性程度较高,则将产生有利影响,反之将产生不利影响;(2)当合约不可观察时,供应商横向兼并一般将对零售商与消费者产生不利影响,而零售商横向兼并对消费者产生的影响取决于产品替代性程度大小,若产品替代性程度较大,则兼并将对消费者产生有利影响,否则将对消费者产生不利影响。     

图书馆服务的人性化向度

文章阐述图书馆要做到人性化服务,必须做好几个方面的服务,立体性:递送周到关怀;相融性:深入用户中间;互动性:搭建交流平台;亲和性:创设舒心环境.     

知识管理的维度与策略

知识经济时代企业不再依靠资本、自然资源和劳动力等传统资源创造价值，而是更多地依赖于知识，创造和传播知识已经成为企业核心能力的关键要素。企业中的知识可分为隐性知识和显性知识，两种知识的相互转化是知识创造和传播和源泉。人和技术是知识管理的两个重要维度，企业知识管理策略就是要在这两个维度上做出选择。基于此，本文提出了企业实施知识管理的信息化、人性化和综合化三种策略。     

Cultural Dimensions of Website Design and Content

The proposition that the technology of the Internet and Web offers a basis for culturally-neutral, computer-mediated communication was tested through a content analysis of 100 Mainland Chinese and American websites. It was found that the tools of the Internet and Web were neither fully neutral nor fully specific to the websites' 'home' cultures. Cultural hybridisation and diffusion of innovation are suggested as alternative explanations.     

企业市场知识能力体系的构建与测量

在回顾国内外市场知识能力研究的文献基础上,对市场知识能力的理论进行了分析.总结了市场知识能力的体系,认为市场知识能力应当由顾客知识能力、竞争对手知识能力以及集成知识能力三个维度所组成,并设计了相应的测量工具.通过对255家装备制造业企业的实证问卷调查,验证了测量量表的可靠性和有效性.     

科研体制中的权力维度

本文通过分析发展科研能力的必要性,提出高校和基金会制中,按一定规则赋予科研人员或科研组织一定的行政权力是促进科学发展的重要因素,     

合成生物学隐喻的双重维度

在合成生物学的叙事中,隐喻扮演着重要的角色。一方面,隐喻以形象的语言和图式帮助公众理解合成生物学所涉及的复杂的学科内涵;另一方面,由于隐喻的特征,易于引起人们的误读、误解,进而影响公众对合成生物学的价值判断。文章借助对隐喻理论的解读,分析隐喻在合成生物学的公众认知和价值判断方面带来的积极和消极影响,指出在合成生物学隐喻的使用及其诠释之间存在的间距,是造成人的价值判断偏颇的主要原因。认识到隐喻在合成生物学叙事中发挥的双重作用,可以帮助人们在科技传播中谨慎地使用隐喻。     

Charting Sociotechnical Dimensions of Values for Design Research

The relationship of values to technology is an important topic in the fields of information studies, human–computer interaction, media studies, and science and technology studies, but definitions and attributes of values differ within and among these fields. We suggest that researchers currently conflate multiple categories when they discuss values. Some of these categories are attributes of the source of values (i.e., people, systems, and hybrid assemblages), and others are attributes of the values themselves. This article disambiguates values in sociotechnical systems by providing a framework to describe where and how values are negotiated and enacted by people, institutions, and technology. The framework includes three dimensions that pertain to the source of values (agency, unit, and assemblage) and three dimensions that pertain to attributes of values (salience, intention, and enactment) to enable precision and comparison across this research trajectory. We illustrate each dimension with examples from the values and design literature.     

公司创业导向的诠释和研究维度

阐述了创业导向的三个分析层面,诠释了公司创业导向的内涵,并分别分析了创业导向的创新性、风险承担性、先动性、竞争积极性、自治性五个维度的特征,建议立足于公司层面,从五个维度对创业导向构念进行研究。     

信息检索中相关性的维度与度量

本文对信息检索中不同维度在相关性度量公式中的体现进行了讨论,并给出了改进相关性度量的几点建议。     

论企业的多维满意循环

在市场经济和全球化的大潮中,企业间的竞争也越来越激烈。企业只有先让自己的员工满意,员工才会让企业的顾客满意,顾客才会让企业的投资者满意,投资者才会让经营者满意,经营者才又会让员工满意,从而形成一个多维满意循环。为了长期生存和可持续发展,企业应该维系并不断改善这个循环。     

服务创新维度间交互作用机制研究

本文从四维服务创新模型出发,在文献回顾的基础上,通过验证式因子分析,构建了测量服务概念创新、界面创新、组织创新和技术创新的量表.以知识密集型服务业为研究对象,使用结构方程技术和集合相关分析,研究了不同创新维度间的交互作用对新服务开发绩效的影响.研究结果显示,一个主导维度的创新,会促进其他创新维度发生变化,不同创新维度间的交互作用能够显著提高新服务开发绩效.     

论社会中介组织发展的努力方向

社会中介组织的健康发展,是促进社会结构调整、维护社会稳定的重要力量,而社会中介组织的发展,离不开经济的发展、政策的推动、管理的高效以及人员素质的提高。     

顾客知识管理体系的构建与测量

在回顾国内外顾客知识管理研究文献的基础上,对顾客知识管理的理论进行了分析,构建了顾客知识管理的体系,认为顾客知识管理应当由顾客自身特征知识管理、顾客对企业认知知识管理以及顾客对竞争对手认知知识管理三个方面工作所组成,并设计了相应的测量工具。通过对装备制造行业企业的实证问卷调查,验证了测量量表的可靠性和有效性。