Estimating the globally attractive set and positively invariant set of a unified chaotic system

By constructing two suitable generalized Lyapunov functions,we derived a generalized ellipsoidal estimate of the globally attractive set and positively invariant set of the unified chaotic system with the parameters α=1/29 and 1/29<α<2/29,respectively,which extends some related results of Li,et al. [Li DM,Lu JA,Wu XQ,Chen GR,Estimating the global basin of attraction and positively invariant set for the Lorenz system and a unified chaotic system,Journal of Mathematical Analysis and Applications,2006,323(2): 844-853]. The theoretical results obtained in this paper will find wide application in chaos control and synchronization.

A call for the reengineering of Iranian ESP textbooks

Having paramount importance in any ESP （English for Special Purpose） classroom, textbooks are known as one of the most visible parts of any ESP teaching program. Enjoying an undeniable position, essentially in the societies where English is used as the second or foreign language, such textbooks should have some features on which the needs and objectives of the ESP teaching program are met. Concerning such an importance, this paper intends to evaluate critically the current status of the Iranian ESP textbooks developed and published by The Organization for Research and Compiling University Textbooks in Humanities （SAMT）, as the main governmental organization in studying and compiling ESP university textbooks. Obtaining such an end, it tries： （1） to present the importance of ESP materials development; （2） to provide a clear picture of ESP and ESP materials development in Iran; （3） to introduce the essential drawbacks which such textbooks suffer from; and （4） to present some practical suggestions and solutions to tackle the significant problems and drawbacks of the current ESP textbooks practiced in the Iranian academic setting.

Computational Unified Set Theory and Application

The computational unified set model (CUSM) as the latest progress of Unified Set theory is introduced in this paper. The model combines unified set theory, information granule, complex adaptive system and cognitive science to present a new approach to simulate the cognition of human beings that can be viewed as the evolutionary process through the automatic learning from data sets. The information granule, which is the unit of cognition in CUSM, can be synthesized and created by the basic operators. It also can form the granule network by linking with other granules. With the learning from database, the system can evolve under the pressure of selection. As the adaptive results, fuzzy sets, vague sets and rough sets, etc can emerge out spontaneously. The CUSM answers the question of the origin of the uncertainties in thinking process described by unified set theory, that is due to the emergent properties of a holistic system of multiple cognitive units. And also the CUSM creates a dynamic model that can adapt to the environment. As a result, the “closed world” limitation in machine learning may be broken. The paper also discusses the applications of CUSM in rules discovery, problem solving, clustering analysis and data mining etc. The main features of the model comparing with the classical approaches toward those problems are its adaptability, flexibility and robustness but not accuracy.

A Study on Unified Testing Method for IEC 61850 Based Server with Focus on Setting Group Function

The digital substation system consists of an Intelligent Electronic Device (IED) which requires information for the supervision, protection, and control, as well as a client operating system for substation operation. IEC 61850 communication standard has been defined for information exchange between heterogeneous digital devices in such substations. Currently, the Korea Electric Power Corporation (KEPCO) digital substation system uses unbuffered reporting and Generic Object Oriented Substation Events (GOOSE) communication functions for monitoring, protection and control automation. However, it is expected that the Setting Group function will be needed to operate adaptive intelligent substation system. The Setting Group function is advantageous in that it is possible to change the setting of the IED in one unified way through the client operating system, rather than changing the correction value of an IED through different manufacturer-based engineering tools. In order to utilize the Setting Group function of the IED in real substation scenario, it is necessary to test both the communication function with the host operating device and the electric functional test to ensure that correction value is properly changed. In this paper, we introduce the IEC 61850 Setting Group function, and propose a method that can integrate communication function and electrical function test of an IED conforming to the setting group functionality. We also tested the Setting Group function of the actual IED device through the proposed integrated functional test method and analyzed the results. We were able to simplify the process of testing both the electrical and communication signals in digital substations.

Reachable set estimation for discrete-time Markovian jump neural networks with unified uncertain transition probability

This paper focuses on the reachable set estimation for Markovian jump neural networks with time delay.By allowing uncertainty in the transition probabilities,a framework unifies and enhances the generality and realism of these systems.To fully exploit the unified uncertain transition probabilities,an equivalent transformation technique is introduced as an alternative to traditional estimation methods,effectively utilizing the information of transition probabilities.Furthermore,a vector Wirtinger-based summation inequality is proposed,which captures more system information compared to existing ones.Building upon these components,a novel condition that guarantees a reachable set estimation is presented for Markovian jump neural networks with unified uncertain transition probabilities.A numerical example is illustrated to demonstrate the superiority of the approaches.

A Fuzzy Set-Based Approach for Model-Based Internet-Banking System Security Risk Assessment

A fuzzy set-based evaluation approach is demonstrated to assess the security risks for internet-banking System. The Internet-banking system is semi-formally described using Unified Modeling Language （UML） to specify the behavior and state of the system on the base of analyzing the existing qualitative risk assessment methods. And a quantitative method based on fuzzy set is used to measure security risks of the system, A case study was performed on the WEB server of the Internet-banking System using fuzzy-set based assessment algorithm to quantitatively compute the security risk severity. The numeric result also provides a method to decide the most critical component which should amuse the system administrator enough attention to take the appropriate security measure or controls to alleviate the risk severity. The experiments show this method can be used to quantify the security properties for the Internet-banking System in practice.

义务教育语文统编教材修订的整体思路与主要做法

2024年9月,新修订的义务教育语文统编教材起始年级投入使用。教材修订仍保留了原有教材的内容特色,以党的二十大精神为指引,适应《义务教育语文课程标准(2022年版)》的新要求,实现“稳中求进”的完善提升。本次教材修订,课文调整主要对“三种文化”进行充实提升,教材单元和栏目进行了微调,整体关注核心素养的培养与知识能力点的落实,依然强调读书的重要性。教师教学要遵循课标精神,尊重教学实际,用好新修订的义务教育语文统编教材。

统编普通高中思想政治教材的劳动精神内容分析

运用内容分析法对统编普通高中思想政治教材中的劳动精神内容进行梳理和分析,研究发现,教材中劳动精神内容呈现以下样态:理论性突出但实践性尚显不足,正辅文配合呈现但编排稍显零散,隐性呈现较多而显性呈现较少,重视思维发展的层次性但高阶思维培养取向或有不足。基于上述样态,研究认为,教师在教学中应采取以下策略:增强实践体验促进知行合一,有效利用教材内容组织大单元教学,加强教师对教材的分析和利用,依托学习活动和评价促进学生高阶思维发展。

统编教材使用中铸牢中华民族共同体意识的优化路径

统编教材因其具有鲜明的意识形态属性而与铸牢中华民族共同体意识教育有着密切联系,二者目标互构、内容相通、实践契合。然而,在具体实施中面临教师对统编教材存在“知识逻辑”与“价值逻辑”的认识困境、学校层面对统编教材使用中铸牢中华民族共同体意识教育的系统设计困境、教师对统编教材使用中铸牢中华民族共同体意识教育存在能力困境。为此,需深化统编教材负载的构筑中华民族共同体意识的价值体系和精神内核的认识、完善学校层面对统编教材使用中铸牢中华民族共同体意识教育的课程顶层设计、提升教师对统编教材的教学转化能力,为使用统编教材中开展铸牢中华民族共同体意识教育的实践落地提供保障。

历史学科核心素养综合培养的学理逻辑及实施

如何综合培养学生的历史学科核心素养是目前中学历史教学需要解决的问题。历史学科核心素养的综合培养先要厘清五个历史学科核心素养的逻辑关系,即以家国情怀素养为最高层次的素养培养目标,以历史解释素养为核心,以唯物史观、时空观念和史料实证素养为基础形成逻辑关系结构;在进行教学设计时要按照核心素养的逻辑关系规划核心素养综合培养的路径;在教学过程中要按照核心素养综合培养路径组织学生开展探究活动。

统编《语文》教材助力国家通用语言文字教育:挑战、困境和新征程

在民族地区中小学使用国家统编教材,是党中央作出的关于加强民族地区国家通用语言文字教育的重大决策部署。根据国家教材政策,民族地区中小学校全面推行使用三科统编教材,逐步实现与全国接轨。但由于历史发展、经济水平、教育基础等方面的原因,在新旧教材过渡时期,统编版教材在民族地区的推行使用必然遇到较大挑战和诸多问题。深入基层、深入学校、深入一线、深入师生,才能了解教材使用的实际问题。以“课堂观察”为主线,主要采用“看、听、评、引”四面一体的研究策略,及时调研统编版《语文》教材在民族地区中小学教学实践中的使用成效、现实困境和现实需求,进而探索解决策略,并付诸行动,提出针对性建议,从而尽快提高教材的推行力度和使用质量,不断提升民族地区学校国家通用语言文字应用水平。

统编小学《道德与法治》教材的学术成就

统编小学《道德与法治》教材取得的成功基于其学术底蕴。教材学术性的标准在于教材编写基于研究、教材体现理论自觉、教材对学术问题有所突破。本套教材以研究为基本编写方式,在伦理观、德育观、教材观和教学观上都有学术理论的指导。本套教材探明了儿童经验进教材的路径,厘清了道德教育与法律教育的关系,摸索出了在传统文化教育中体现儿童立场的方法,突破了一些学术难题。“内容至上”的倾向,“应试”化的教学氛围以及对“副科”的轻视,是发扬本套教材学术成就的主要挑战。弘扬教材的学术性,将教材的学术成就转化为实践进步,需要各方面教育主体的共同努力。

统编教材铸牢中华民族共同体意识的逻辑与进路

中华民族共同体意识是实现国家繁荣、民族团结和文化传承的着力点。统编教材作为集中体现国家意志和民族利益的重要载体,必然承载着铸牢中华民族共同体意识的使命。这就要求统编教材在内容选择时充分体现国家意志、凸显文化价值并连接学生的生活。构建中华民族共同体意识应实现从政治意识到知识表达,进而到教育实践的转换;综合考虑学生的认同规律、意识层次和发展难题;引导学生实现从认知到意义,再到生活的转变。在推进实践时要依循规范编写、有效选用、合理使用和系统评价的进路。

教科书里的文明形象塑造——基于初中统编版教科书的探究

增强学生文明素养是“十四五”时期建设高质量教育体系的重要目标,也是落实立德树人根本任务的一项重要举措。教科书里的文明形象塑造是学生文明素养的形象化表达,引导学生理解现实世界和建构意义世界,帮助学生确证着自身作为社会存在的本质,同时指引学生成为更加文明的社会存在。基于“学生文明素养框架”对初中统编版道德与法治、语文、历史教科书进行文本分析,发现教科书在内容上塑造了物质文明生活中的劳动者形象、精神文明生活中的缔造者形象、政治文明生活中的捍卫者形象、社会文明生活中的模范者形象、生态文明生活中的守护者形象;在形式上以文学作品、历史叙事和探究活动为载体,分别侧重文明形象的艺术性塑造、真实性塑造和生活化塑造。同时,仍需要通过完善教科书中整体文明生活的文明形象塑造、突出典型化文明形象的生活意义等内容深化措施,以及注重塑造手法对学生想象空间的拓宽、加强人物叙事与学生生活世界的关联、生动呈现文明形象的文明行动等形式细化措施,进一步优化教科书中的学生文明素养培育内容与形式。

中医教材历史沿革与建设探讨

教材不仅是培养高素质人才的知识传递载体、开展教育活动的主要依据,也是高等院校开展教学任务的重要工具。按照时期划分教材的发展阶段,分析中医药高等教育第一至十一版统编教材的历史背景、内容特点,以此了解中医教材的历史沿革,并采用历史制度主义的理论视角,从中医教材建设的深层结构、路径依赖和动力机制三个方面分析其演变规律,为中医教材的深层次研究开辟了新思路、新视野。有利于提升教材质量的同时,对丰富中医药高等教育统编教材的理论和实证研究具有重要意义。

统编版小学语文教科书中劳动人物形象使用研究——基于教师教科书使用水平视角

从教师对劳动人物形象的理解与研究、利用劳动人物形象进行备课、运用劳动人物形象开展教学、使用劳动人物形象后的反思这4个维度,对小学语文教师使用劳动人物形象的水平进行调查。研究发现:教师能够主动制定劳育目标,内容组织较为灵活,但对劳动课标等上位材料及劳动人物形象的认知不足,教学方法较为传统;劳动教育资源利用较为充分,时间安排充足,但劳动人物形象使用效果不佳,使用中经常遇到困难。这提示教师应吃透国家有关劳动教育政策,树立正确的劳动教育理念;深入分析劳动人物形象,充分挖掘人物的价值意蕴;围绕劳动人物形象特征,实现人物教学方法的多元化;将经历转化为经验,提升劳动人物的使用效果。

中华文明的五个突出特性在统编高中历史教材中的体现

教材编写是国家事权,集中体现国家主流意识形态。习近平总书记关于中华文明具有五个突出特性的重要论述,深刻阐释了中华文明的本质特性,是习近平文化思想的重要组成部分,应成为基础教育阶段历史教材编写的指导思想。统编高中历史教材是在习近平新时代中国特色社会主义思想指导下编成的,其内容在“连续性是中华文明存续的基础”“创新性决定了中华民族的进取精神”“统一性是中国核心利益的核心”“包容性促进多元一体格局的形成”“和平性促进人类命运共同体理念的形成”五个方面高度契合了国家主流意识形态,体现了习近平新时代中国特色社会主义思想与统编高中历史教材之间的指导关系,成为习近平文化思想与基础教育教材相结合的典范,为基础教育教材建设提供了借鉴。

叙事学视域下中华民族共同体意识在统编语文教材中建构的内涵与理路

统编语文教材是中小学铸牢中华民族共同体意识教育的重要载体。中华民族共同体意识在教材中的建构强调引导学生坚定五个认同,增进共同性是建构的基础和方向。教材采用语言与非语言相结合的叙述方式,叙述中华民族共同体“四个共同”的故事,以构成教材的核心内容。“人文主题”加“语文要素”的主题单元叙事结构展现中华民族共同体故事脉络,并以多模态呈现中华优秀传统文化、革命文化、社会主义先进文化等中华民族共同体符号。此外,统编语文教材中学习支架的搭建,体现了对学生主体地位的观照,助力学生铸牢中华民族共同体意识。

基于类型教育定位的中职语文统编教材特色分析

国家以法律法规形式明确了“职业教育是与普通教育具有同等重要地位的教育类型”。中等职业学校语文统编教材基于类型教育定位编写,具有以下特色:基于中职属性,统筹设计教学模块,突出职业教育育人导向;创新教材体系,双线组元构建专题,彰显职业教育育人特色;立足核心素养,精挑细选经典文本,深化职业教育育人内涵;对接职业生活,循序渐进设计任务,强化职业教育育人目标;融合专业特色,创设多样言语活动,提升职业教育育人实效。