Dependency-based importance measures of components in mechatronic systems with complex network theory

To compensate for the limitations of previous studies,a complex network-based method is developed for determining importance measures,which combines the functional roles of the components of a mechatronic system and their topological positions.First,the dependencies among the components are well-represented and well-calculated.Second,a mechatronic system is modeled as a weighted and directional functional dependency network(FDN),in which the node weights are determined by the functional roles of components in the system and their topological positions in the complex network whereas the edge weights are represented by dependency strengths.Third,given that the PageRank algorithm cannot calculate the dependency strengths among components,an improved PageRank importance measure(IPIM)algorithm is proposed,which combines the node weights and edge weights of complex networks.IPIM also considers the importance of neighboring components.Finally,a case study is conducted to investigate the accuracy of the proposed method.Results show that the method can effectively determine the importance measures of components.

A Study on the Rhetorical Structure of Xi Jinping's Important Speeches for the New Era

Based on the Rhetorical Structure Theory (hereinafter referred to as RST), the study selected and analyzed the English versions of ten important speeches made by President Xi for the new era and drew up rhetorical trees.Through a thorough investiga-tion of rhetorical structures of Xi's speeches on the basis of RST, the study found that:1) Elaboration, Background and Evidence re-lations are the dominant relations in President Xi's speeches;2) The preference of forward arrow direction is an unexpected find-ing;3) There are two patterns of macrostructure of rhetorical relations in Xi's speeches.

Evidence combination method in time domain based on reliability and importance

In order to achieve the information fusion in the time domain based on the evidence theory, an evidence combination method in the time domain based on reliability and importance is proposed according to the idea of evidence discount. Firstly, the distortion of the time-domain evidence is judged based on single exponential smoothing. The real-time reliability of the evidence at the adjacent time is obtained by the real-time reliability assessment method of the evidence based on the credibility decay model.Then, the relative importance of the evidence at the adjacent time is obtained by comprehensively considering improved conflict degree and uncertainty. Finally, based on the criterion of evidence discount and the Dempster’s rule of combination, the evidence combination is carried out to achieve the sequential combination of time-domain evidence. The numerical simulation and analysis show that this method has fully embodied the dynamic characteristics of time-domain evidence combination, and it has strong processing ability for conflict information and anti-disturbing ability.The proposed method has good applicability to information fusion in the time domain.

Generalization Rough Set Theory

In order to avoid the discretization in the classical rough set theory, a generlization rough set theory is proposed. At first, the degree of general importance of an attribute and attribute subsets are presented. Then, depending on the degree of general importance of attribute, the space distance can be measured with weighted method. At last, a generalization rough set theory based on the general near neighborhood relation is proposed. The proposed theory partitions the universe into the tolerant modules, and forms lower approximation and upper approximation of the set under general near neighborhood relationship, which avoids the discretization in Pawlak's rough set theory.

New judging model of fuzzy cluster optimal dividing based on rough sets theory

To investigate the judging problem of optimal dividing matrix among several fuzzy dividing matrices in fuzzy dividing space, correspondingly, which is determined by the various choices of cluster samples in the totality sample space, two algorithms are proposed on the basis of the data analysis method in rough sets theory： information system discrete algorithm （algorithm 1） and samples representatives judging algorithm （algorithm 2）. On the principle of the farthest distance, algorithm 1 transforms continuous data into discrete form which could be transacted by rough sets theory. Taking the approximate precision as a criterion, algorithm 2 chooses the sample space with a good representative. Hence, the clustering sample set in inducing and computing optimal dividing matrix can be achieved. Several theorems are proposed to provide strict theoretic foundations for the execution of the algorithm model. An applied example based on the new algorithm model is given, whose result verifies the feasibility of this new algorithm model.

An Overall Urban System: Integrating Central Place Theory and Urban Network Idea in the Greater Pearl River Delta of China

Following a half century of popularity, central place theory experienced 20 years of neglect when the new urban system theory of network modeling gained attention at the beginning of the 1990s. However, central place theory remains valid, and it seems there has been a reemergence with it. Using the Greater Pearl River Delta (Greater PRD) as an experimental study region, this paper intends to present an empirical study that validates central place theory and shows that it can be integrated into an overall regional urban system. The study uses the compound Central Place Importance (CPI) to evaluate whether there is a hierarchy among the urban centers within the study area. The results indicate the existence of a hierarchy. Furthermore, empirical observation finds distinct complementarity relationships, rank-size distributions, and co-operative actions between the different cities, thus substantiating the claim that central place theory can be incorporated into an overall regional urban system. Besides, the presence of the densely distributed modern infrastructure system also appears to constitute a dimension of the overall urban system. There need further theoretical and empirical studies in order to support this proposition.

A Case Study of China as an Exporter of Higher Education Using Push-Pull Theory

Developing countries establishing international branch campuses （IBCs） is an emerging trend, and currently compromises 17% percent of the market in terms of the number of IBCs. While researchers have applied different social science perspectives to analyze cross-border higher education and IBCs, they usually emphasize developed countries as exporters and developing countries as importers of higher education. The phenomenon of developing countries as exporters of higher education has seldom been looked at so far in the research. This paper first describes the current development of IBCs, then illustrates what social science perspectives have been used on this topic, followed by how push-pull theory relates to developing countries being exporters of IBCs. The paper aims to combine E.S. Lee＇s push-pull theory and Gu＇s push-pull framework to analyze the push and pull factors in their advertisement and marketing claims when higher education institutions （HEIs） from developing countries plan to establish branch campuses in foreign countries. Soochow University in Laos is used as a case study. Furthermore, intermediate barriers and solutions are also identified in this case study. However, this case study has its own uniqueness and only serves heuristic for future research.

习近平总书记教育重要论述的理论体系及其重大意义

党的十八大以来,习近平总书记全面深入分析大变革时代教育领域的重大理论和实践问题,始终坚持以人民为中心,围绕“办教育”“培养人”两大主线思考解答“教育之问”,系统回答了“什么是中国特色社会主义教育”“怎样坚持和发展中国特色社会主义教育”的重大问题,形成了习近平总书记教育重要论述。习近平总书记教育重要论述是新时代教育事业发展经验的理论总结,是中国化时代化的马克思主义在教育领域的理论创造,是对中华优秀传统文化和我们党优良教育传统的继承与发展,成为习近平新时代中国特色社会主义思想的重要组成部分。习近平总书记教育重要论述是一个系统全面、逻辑严密、内涵丰富、思想深邃、内在统一的科学理论体系,具有在实践中不断充实、自我完善的理论品质,必将随着实践的深入不断丰富发展。习近平总书记教育重要论述具有重大的政治意义、理论意义、实践意义、文化意义和世界意义。

A GROUP REPRESENTATION OF CANONICAL TRANSFORMATION

The mutual relationships between four generating functions F-1(q, Q), F-2(q, P), F-3(p, P), F-4(p, Q) and four kinds of canonical variables q, p, Q, P concerned in Hamilton's canonical transformations, can be got with linear transformations from seven basic formulae. All of them are Legendre's transformation, which are implemented by 32 matrices of 8 x 8 which are homomorphic to D-4 point group of 8 elements with correspondence of 4:1. Transformations and relationships of four state functions G(P, T), H(P, S), U(V, S), F(V, T) and four variables P, V, T, S in thermodynamics, are just the same Lagendre's transformations with the relationships of canonical transformations. The state functions of thermodynamics are summarily founded on experimental results of macroscope measurements, and Hamilton's canonical transformations are theoretical generalization of classical mechanics. Both group represents are the same, and it is to say, their mathematical frames are the same. This generality indicates the thermodynamical transformation is an example of one-dimensional Hamilton's canonical transformation.

民本之解蔽:先秦民本观的构型及调适

先秦民本观不宜宽泛地以“民本”统称,而是具体分为四种构型。以“民惟邦本”为代表的民本论呈现出功能主义的话语效用,为诸子所共享,但存在“民本悖论”这一有待突破的理论困境。孟子主张的“民贵君轻”可称为民贵论,具有一定的思辨性特征,但其极限版本“汤武革命”成本过高,不宜作为常态化的实践方案。民意论和民约论分别可从儒家和墨家思想中建构出来。儒家民意论是不同于官方民本论的一种理想化的理论形态,是中国传统政治哲学的现代性延伸。墨家民约论对儒家民意论具有调和作用,可以丰富后者的实践面向。此四种构型各有侧重,层层递进且互有补充,共同呈现了先秦诸子对人民地位的整体态度,并在后世得以发展完善,对当代中国及世界都具有较为深刻的历史镜鉴意义。

基于重要性—绩效的公共交通服务质量满意度分析

基于顾客满意度模型,挖掘政府购买服务背景下的公交满意度影响机理,从硬件(产品满意度)和软件(服务满意度)两维度构建公共交通满意评价体系;其次,利用结构方程模型确定各公交服务属性在预测整体满意度方面的重要性,采用重要性—绩效分析方法确定公共交通满意度指标的改善优先级;最后,以北京某区为例进行实证。结果显示,公共交通软件(服务满意度)的相对重要性高于硬件(产品满意度),采用重要性-绩效分析方法识别公共交通满意度属性的改善优先级,制定并实施改进策略后,满意度提升9.9%。研究为政府购买服务背景下的公共交通服务水平提升、政策建议和策略制定提供理论支撑。

复杂地质条件下沥青混凝土心墙坝风险识别方法

针对复杂地质条件下沥青心墙坝风险识别问题,本文从“三高一深”复杂地质条件、沥青混凝土心墙和传统土石坝三个风险维度,系统建立沥青混凝土心墙坝风险指标体系。针对主客观信息融合不充分问题,本文采用三角模糊层次分析法(TFAHP)确定风险指标主观权重,通过指标重要性评价法(CRITIC)确定其客观权重,并利用博弈论法(GT)计算最优组合权重,构建基于TFAHP-CRITIC-GT组合赋权模型的沥青心墙坝风险智能识别方法。实例分析表明,新疆奴尔沥青心墙坝工程复杂地质条件风险指标权重占比0.516,是该工程的重要风险因素。综合考虑复杂地质条件风险对于准确识别沥青心墙坝风险因素具有重要工程意义,本文提出的指标体系及识别方法对于西部地区复杂地质条件大坝风险识别及评价研究具有推广价值。

文化认同视域下文化旅游铸牢中华民族共同体意识实践研究--基于新疆地区的调研案例

文化认同是最深层次的认同,是铸牢中华民族共同体意识的长远和根本之策。新疆通过深入实施旅游兴疆战略和文化润疆工程,使文化旅游发展成为促进民族交流团结的稳疆产业,成为丰富完善多元一体中华文化的润疆产业,成为扩大就业和改善民生的重要兴疆产业,成为推动区域经济转型升级的建疆产业。新疆文化旅游铸牢中华民族共同体意识实践,依托“多元一体”中华文化的优势,大力发展具有区域比较优势的文化旅游产业,基于文化旅游业自身蕴含的开放机制、融合机制、交流机制以及内生机制,推动了民族地区的社会转型与文化重构进程,牢固了各民族之间的精神纽带,进一步增强了各民族对中华文化的认同,为新疆的和谐稳定与繁荣发展作出了积极贡献。

中国运动训练理论的历史演进与逻辑解析

采用文献资料、专家访谈、个案分析、历史追踪等方法,回溯新中国成立以来中国运动训练理论的发展轨迹,探讨中国运动训练理论的发展历程、建设成就、演进逻辑、现实问题。发现:中国运动训练理论历经3个历史发展阶段,通过实践界、理论界和科技界几代人的共同努力和单学科纵深发展、多学科融合发展、跨学科合作发展路径,已经构建了系统知识体系、创新学科体系和实践指导体系;通过重视历史经验的传承性、发展性和自觉性,强化指导实践的学理性、创新性和系统性,遵循理论演进的导向性、规律性和协同性等多种逻辑,实现了中国运动训练理论的科学升级和守正创新。

新时代高校思政课实践教学的内涵、价值及实现路径

习近平总书记在学校思想政治理论课教师座谈会上明确指出“要高度重视思政课的实践性”,实践教学作为高校思想政治理论课教学的重要组成部分,是推动思政课改革创新,落实立德树人根本任务的重要举措。加强高校思政课实践教学是提升思政课亲和力、针对性的重要举措,有效推进“大思政课”建设的题中之意,是培养担当民族复兴大任时代新人的必要举措。本文旨在把握高校思政课实践教学的内涵本质,理清其与“思政教育实践活动”“实践教学法”“专业课程实践教学”等相关概念的异同,通过明确教学目标、规范教学内容、创新教学方法、完善教学保障,探寻新时代高校思政课实践教学提升的有效路径。

高质量发展的体系化阐释

高质量发展已经形成由内涵、原则、路径、载体和领导力量等方面组成的科学体系。其丰富内涵可以从发展的阶段、形态、理念、战略、成效检验标准以及全面建设社会主义现代化国家的首要任务、中国式现代化的本质要求之一、新时代的硬道理来把握。其原则要求可以从理念的先导、质量的互变、改革开放的动力、美好生活的取向等四个维度来提炼。其路径选择可以从高水平科技自立自强、高标准市场体系、高品质生活等八个方面来梳理。其重要载体可以分为领域(行业)和空间(区域)两大类。其领导力量可以从党领导经济工作的制度安排、宏观经济治理以及领导干部能力等视角来理解和把握。

基于重要性-绩效性分析理论的新疆葡萄酒酒庄旅游产品优化策略

该文采用层次分析法(AHP),从“食、住、行、游、购、娱”旅游六要素层面,选取餐食品质、住宿环境、道路状况等24个指标,构建新疆葡萄酒酒庄旅游游客体验评价指标体系。选取新疆葡萄酒四大主产区具有代表性的10家葡萄酒酒庄作为调研对象,通过深度访谈和问卷调查,并基于重要性-绩效性分析(IPA)理论进行矩阵分析所收集的数据。结果表明,新疆酒庄旅游产品供给存在葡萄酒文化旅游资源开发力度较弱、资源开发关注点偏移、游客对葡萄酒文化关注度低及酒庄旅游产品缺乏地域文化特色等问题。针对上述问题,提出挖掘酒庄文化旅游资源,丰富产品类型;转移关注重心,优化产品设计;突出经营模式,打造葡萄酒文化创意产品;提高讲解员业务能力,丰富特色文化活动等新疆葡萄酒酒庄旅游产品优化策略。

复杂山区铁路隧道勘察设计工程质量风险识别及耦合演化分析

铁路隧道工程勘察设计阶段工作对整个工程的全生命周期质量具有重要影响。然而,山区地质条件复杂、自然灾害频发等特点给铁路隧道勘察设计带来极大挑战,而且铁路工程质量风险构成复杂,风险事件的发生通常是多风险耦合作用的结果。目前关于铁路隧道的研究多聚焦于隧道的关键技术、施工安全、绿色性能等方面,鲜有立足勘察设计阶段的山区铁路隧道质量风险耦合研究。为从勘察设计阶段提高隧道工程质量目标的成效,提出基于突变理论的质量风险耦合效应分析模型。首先从内部诱因(人员、技术、管理)和外部诱因(地质、社会、自然)2个维度辨识影响复杂山区铁路隧道勘察设计的质量风险源,并结合改进重要性-绩效分析法(IPA)对风险因子进行层级归类;其次分析多风险因素耦合的形成机理,基于突变理论从耦合度和稳定性2个方面分析铁路隧道勘察设计工程质量风险耦合效应,并构建尖点突变模型进行风险耦合路径演化分析;最后以某复杂山区铁路隧道为例,利用提出的方法进行验证,确定其风险耦合等级为Ⅲ级,存在高风险的耦合程度,质量风险需要警惕,但整体系统处于稳定状态。该研究可以为复杂山区铁路隧道勘察设计工程质量风险决策提供理论支撑。

新时代文艺发展根本问题的创造性探索与回答——习近平重要论述对马克思主义文艺理论的创新性贡献

习近平关于文艺工作的重要论述,从实现中华民族伟大复兴、推进中国式现代化建设和建设中华民族现代文明的高度,揭示了文艺工作的战略意义,在“为什么要实现文艺发展”的认识上达到新高度;阐明社会主义文艺的本质、灵魂和中心,深化和拓展了中国特色社会主义文艺的内涵,在“实现什么样的文艺发展”的认识上开辟了新境界;对我国文艺发展的领导力量、原则路径、人才支撑等进行了深远擘画,推动“怎样实现文艺发展”的认识迈向更高层次。系列重要论述具有重大创新性贡献,标识出当代中国马克思主义文艺理论的新高度,开辟了21世纪马克思主义文艺理论发展的新境界。

基于CRITIC和灰色系统理论的地铁深基坑工程施工风险评估:以岱山站深基坑工程为例

为了解决深基坑工程风险评估过程中不确定因素众多,风险评估难以量化和主观性过强难题,依托南昌轨道交通3号线岱山站深基坑工程,提出一种将CRITIC(criteria importance though intercrieria correlation)客观赋权法和灰色系统理论相结合的风险量化评估方法,建立了地铁深基坑工程施工期间风险评估指标体系,采用CRITIC法计算各指标的客观权重,结合灰色系统理论进行综合评估,确定地铁深基坑施工安全风险等级和风险值。结果表明:该方法能科学、可靠地评价出深基坑风险等级,减少专家主观因素带来的影响,考虑了指标间的相互联系,能够合理反映深基坑施工风险等级水平,适用于风险因素众多且模糊不定的基坑工程,可以为同类深基坑工程的风险管理提供决策依据。