Security Risk Assessment of Cyber Physical Power System Based on Rough Set and Gene Expression Programming

Risk assessment is essential for the safe and reliable operation of cyber physical power system. Traditional security risk assessment methods do not take integration of cyber system and physical system of power grid into account. In order to solve this problem, security risk assessment algorithm of cyber physical power system based on rough set and gene expression programming is proposed. Firstly, fast attribution reduction based on binary search algorithm is presented. Secondly, security risk assessment function for cyber physical power system is mined based on gene expression programming. Lastly, security risk levels of cyber physical power system are predicted and analyzed by the above function model. Experimental results show that security risk assessment function model based on the proposed algorithm has high efficiency of function mining, accuracy of security risk level prediction and strong practicality. © 2014 Chinese Association of Automation.

Building up a general selection strategy and catalytic performance prediction expressions of heteronuclear double-atom catalysts for N_(2)reduction

The severe environmental problems and the demand for energy urgently require electrocatalysis to replace Haber-Bosch for the nitrogen reduction reaction(NRR).The descriptors and important properties of single-atom and homonuclear double-atom catalysts have been preliminarily explored,but the relationship between the inherent properties and catalytic activity of heteronuclear double-atom catalysts with better performance remains unclear.Therefore,it is very significant to explore the prediction expressions of catalytic activity of heteronuclear double-atom catalysts based on their inherent properties and find the rule for selecting catalytic centers.Herein,by summarizing the free energy for the key steps of NRR on 55 catalysts calculated through the first-principle,the expressions of predicting the free energy and the corresponding descriptors are deduced by the machine learning,and the strategy for selecting the appropriate catalytic center is proposed.The selection strategy for the central atom of heteronuclear double-atom catalysts is that the atomic number of central B atom should be between group VB and VIIIB,and the electron difference between central A atom and B atom should be large enough,and the selectivity of NRR or hydrogen evolution reaction(HER)could be calculated through the prediction formula.Moreover,five catalysts are screened to have low limiting potential and excellent selectivity,and are further analyzed by electron transfer.This work explores the relationship between the inherent properties of heteronuclear double-atom catalysts and the catalytic activity,and puts forward the rules for selecting the heteronuclear double-atom catalytic center,which has guiding significance for the experiment.

The Limit to the Liberty of Expression in the Western World from the Perspective of Jurisprudence

The liberty of expression is one of the most important values in the human society, and a tolerant, unconstrained social atmosphere can provide personal development with a healthy and harmonious environment. Since the modern times, the liberty of expression has been gradually deemed by academic circles and all walks of life as a basic human right, and also has been fixed as a basic right of citizens through the legal form. The purpose of this paper is to clearly analyze the kernel and value of the liberty of expression through a historical review, so as to specifically sort out the development course of the liberty of expression and also excavate its implied meanings. In addition, the embodiment of the liberty of expression in both theory and practice since the modern times is analyzed around the limit theory of the liberty of expression, and then the opinions of the author are drawn up. Thus, some new ideas and views are provided for the future development of the liberty of expression from a new perspective.

The Advertisement Translation Based on the Prototype Theory

Based on the Prototype Theory,the prototypical feature of advertisement is found to be the combination of three language functions:the informative function,the expressive function,and the vocative function.The advertisement translation means the adjustment of the informative function and the expressive function according to the differences between languages or cultures in order to maximize the vocative function.The faithful translation is the closest to the prototype of the source text but not necessarily the best translation.

中国特色课程论话语体系建构刍议

建构中国话语体系成为新时代亟待解决的一项重大战略任务。建构中国特色课程论话语体系既是时代使命亟需,也是当前中国课程论话语深化研究迫切。中国特色课程论话语体系是中国基于本土社会需要和特定的理念,在课程领域核心价值、本体功能、政策部署和内在属性等方面提出的系统性思想,是由标识性概念、核心目标、实践机制等话语相互作用而形构的话语复合体,是话语主体的中国在讲述自己课程故事时采用的话语模式、话语风格与话语结构。剖析发现中国课程论话语供给不足表现在,先天性“中国”话语不足、过程性“自主”话语不足和国际性“学术”话语不足三大现实问题,其建构应凸显政治立场、实践立场和原创立场三大立场定位,以中国特色为引领努力推进中国课程论话语体系建构,要强调中国立场和国际表达,加快中国自主课程论知识体系建设。

Derivation of Martin-Hou Equation of State from Hard-particle Perturbation Theory

In this paper, the Martin-Hou equation of state is derived by using a power series representation of radial distribution function and an analytic representation of multi-section potential based on the Barker-Henderson hard-particle perturbation theory including high-order terms. In the derivation, a theoretical form of Martin-Hou equation was obtained. It had a similar form and the same capability to predict P-V-T properties as the Martin-Hou equation and no additional data were required for evaluating the constants. The characteristic constants of the theoretical expression have certain relationships with the molecular parameters.

Development of the Emergent Theory of Aesthetic Nursing Practice (AesNURP)

Theory is necessary to science and science grounds legitimate and essential practice. This is true for Nursing as a discipline of knowledge and a practicing profession. Nevertheless, should all science or research within a scientific field be focused on theoretical development and testing? Currently, various nursing theories exist to describe and explain the phenomena of nursing. Often, the development of nursing theory is in response to advancing ontologies and epistemologies of nursing. The advent of technology is one of these advances challenging the professional practice of nursing. How will nursing practice be made visible and realistic in the face of traditional nursing care practice? Nursing practice processes, derived from theories of nursing, provide opportunities for demonstrating practice grounded in the science of nursing. The purpose of this article is to describe the development of the emergent theory of Aesthetic Nursing Practice, focus on illuminating caring for person through the process of encountering, co-creating caring relationships, and meaningful engaging between the nurse and nursed through caring encounters occurring in caring situations. Five assumptions and a model of practice are described. As a contemporary theory of Nursing, it describes caring for persons who remain wholes and enhance their well-being.

An Improved Three-Dimensional Model for Emotion Based on Fuzzy Theory

Emotion Model is the basis of facial expression recognition system. The constructed emotional model should not only match facial expressions with emotions, but also reflect the location relationship between different emotions. In this way, it is easy to understand the current emotion of an individual through the analysis of the acquired facial expression information. This paper constructs an improved three-dimensional model for emotion based on fuzzy theory, which corresponds to the facial features to emotions based on the basic emotions proposed by Ekman. What’s more, the three-dimensional model for motion is able to divide every emotion into three different groups which can show the positional relationship visually and quantitatively and at the same time determine the degree of emotion based on fuzzy theory.

Linguistic Reflection on the Online Catchword of Appreciation —From the Perspective of Usage-based Language Model and Complex Adaptive System Theory

Language is a special social phenomenon and is always on the changing process with the development of society. During the evolving process of language, new language varieties will continuously emerge due to the changes of some social and cultural factors. Cyber language is universally accepted as one type of the social language varieties. Basically, cyber language can be treated as a complex adaptive system which is influenced by the interaction between users’ cognition, social culture and the surrounding environments. Thus it is safe to say that cyber language is always undergoing a dynamic evolving process. With the usage-based language model as the theoretical foundation, this paper proposes a Complex Adaptive System (CAS) approach to analyze the expression of Appreciation to explore the complex, dynamic and nonlinear development of cyber language from the angle of meaning construction, grammaticalization and functional adaption respectively. It is found that the expression of Appreciation is experiencing adaptively a semantic connotations development and a process of grammatical functions expansion as well. This paper suggests that the emergence and development of cyber language is a novel and trendy social language phenomenon. Network language can achieve its process and evolution under the huge impact of social changes and social promotions. When faced with the changing surroundings, cyber language itself enjoys a timely adaption and responsive development to keep up with the new environments, which reflects the basic principle of language development, namely, language changes with the development of society.

民国初期中医理论哲学化表达的自觉——从恽铁樵“形能”思想切入

以西医为主导的现代医疗卫生体系在民国初期已完成构建并不断完善,现代解剖学、细菌学等对中医理论造成了严重冲击。以恽铁樵为代表的中医人士借鉴西方新知,主张在了解人体解剖基础上洞察生命运行和疾病变化规律,创造性提出了“形能”思想。原本注重由“形”入“能”,但在实践中却常常脱“形”重“能”,中医脏腑、寒热等概念都成为哲学“话题”而不是医学“课题”,推动了中医理论哲学化表达的自觉。这固然让中医界摆脱了以西医理论来论证自身理论之是非的可能,却也造成了理解上的混乱以及空疏的学风。

基于有效性完整表达的白芍质量标志物研究

目的:基于中药质量标志物(Q-marker)有效性原则,采用“性-效-物”三元论研究思路,从药性(味)和药效角度揭示白芍Q-marker。方法:采用液相色谱-质谱联用法(LC-MS),解析白芍、炒白芍、赤芍化学物质组;在此基础上,通过分子对接方法,选择白芍中各结构类型代表化合物为配体小分子,通过与苦、酸味受体进行分子对接实验,预测白芍潜在药性(味)物质基础;采用网络药理学方法,通过SwissTargetPrediction、中药系统药理学数据库与分析平台(TCMSP)等数据库预测化合物潜在作用靶点,并进行生物信息学分析,构建化合物-靶点-信号通路-药理作用-功效网络,进一步以体外抗炎药效筛选模型,验证白芍及关键化合物的抗炎药效作用,明晰基于药效的白芍物质基础,进而基于有效性完整表达结果确定白芍Q-marker。结果:共解析出白芍中42个成分、炒白芍中41个成分、赤芍中34个成分。其中单萜及其苷类化合物可能为白芍最主要的苦味物质基础,带有没食子酰基的鞣质类化合物可能为白芍最主要的酸味物质基础。网络药理学结果发现,白芍中17个成分通过作用于191个潜在靶点干预了165条相关通路,可发挥促进骨髓造血功能、抑制子宫收缩、抗炎、镇痛、保肝、抗高血压和抑制汗腺分泌等作用;验证实验表明,白芍中8个主要成分可通过下调白细胞介素-6、肿瘤坏死因子-α和一氧化氮等炎症因子的表达发挥抗炎作用。结论:初步确定芍药苷、芍药内酯苷、氧化芍药苷、没食子酰芍药苷、苯甲酰芍药苷、儿茶素、五没食子酰葡萄糖及没食子酸为基于有效性完整表达的白芍Q-marker。

从中国审美传统特质看中国文论话语自主性

在现代化的狂飚突进中,现代性的话语霸权造成了中国文论叙事方式被同化的趋势。它使我们从一个“他者”视角读出以往不曾读出的含义,但也导致中国审美传统之固有特质的遮蔽,更深远的影响是中国文论话语体系自主性的隐遁。中国文化重体认和亲证的基本旨趣,规定了中国文艺批评的特有方式和取向。与西方审美传统重再现、求形似、偏写实不同,中国古典审美方式重表现、求神似、偏写意。中国的审美创造总有一个道德负荷,即发挥伦理教化功能,因而拒绝唯美主义。中国文化本质上是审美的,是诗意化的文化。在应对现代性挑战中,如何维系并捍卫中国文化的自主性,是我们必须直面的任务。建构中国文论自主话语体系,就是其中一个不可或缺的重要方面。

“表达驱动”教学理论赋能国际中文读写教材编写实践——以《立体中国·国际中文读写课本》为例

教学理论对于教材研发具有重要指导意义。“表达驱动”教学理论的产生经历了酝酿、探索与实践三个阶段,具有深厚的理论实践基础,适用于国际中文读写教材的编写。教材单元体例设计包含四个模块八个构件:表达需求驱动、表达过程调节(表达初体验、阅读输入、沉浸体验、互动协商、体验调节)、表达输出和表达评价。国际中文教育读写教材编写要注重读写主题的相关性与真实性;读写技能的互促性与系统性;习题设置的层次性与实践性。

高职院校学生学习需求的表达与创生——一项基于扎根理论的质性研究

学业评价是保障高职院校人才培养质量的重要手段,而学业评价的关键在于对高职学生学习需求的把握。选取长三角地区10所高职院校的19名在校学生,基于扎根理论的编码范式,呈现学生学习需求的真实图景:有用的学习成果、快乐的学习体验、非传统的人才培养模式、高质量的第二课堂是学生的显性学习需求;理论知识的学习、通用知识与软性技能的觉醒、获得全面公正的评价与反馈是被主流评价系统忽视和压抑的学习需求;实现个人梦想、承担国家社会责任、政治参与等宏大需求无法得到学生的充分言说,需要通过深度的师生互动、联合的教育生活予以澄清和创生。

快递市场监管问题何以进入政策议程?——基于多源流理论模型的分析

研究运用多源流理论,结合中国情境,对《快递市场管理办法》的政策议程设置进行整体分析,揭示快递市场监管问题在政策议程中的形成机制。研究发现,快递业健康发展的阻梗问题构成了问题源流,地方法律法规的探索和政策创新家的建言汇聚成政策源流,快递业发展理念和公众需求倾向变化共同交织成政治源流,邮政强国战略和政策创新家持续推动,开启“政策之窗”并促使三个源流实现汇合,《快递市场管理办法》最终进入政策议程设置。

镜像理论视阈下的女性服装选择与身份建构

运用拉康的镜像理论,探讨女性服装选择如何影响其身份建构和社会身份、自我认同的形成。研究分析了在性别角色多样化背景下,女性如何通过服装表达自我。女性的服装选择受到社会预期、文化规范和个人心理需求的影响,反映了审美偏好和社会角色。服装选择不仅是个人行为,也是社会文化现象,对理解女性在当代社会的角色和地位具有研究价值。

精神分裂症患者表情识别异常与心理推理能力和共情缺损的关系

目的:探讨精神分裂症患者表情识别、心理推理能力和共情的缺损,并考察其表情识别能力与心理推理能力和共情的关系。方法:招募47例符合精神障碍诊断与统计手册第5版(DSM-5)诊断标准的精神分裂症患者和35例正常对照。采用表情识别任务(FEIT)评估表情识别,Yoni任务评估认知与情感心理推理能力,认知与情感共情问卷(QCAE)评估共情,主要指标为任务正确率和问卷得分。结果:精神分裂症患者组6种表情识别正确率、心理推理任务表现以及QCAE认知共情得分和情感共情远端反应得分均低于对照组(均P<0.05);回归分析显示Yoni任务认知条件正确率(β=0.33,P<0.01)和情感条件正确率(β=0.33,P<0.01)均与高兴表情识别正确率存在正向关联;QCAE认知共情得分与中性表情识别正确率呈负向关联(β=-0.23,P<0.05);精神分裂症患者Yoni任务情感条件正确率(β=-0.23,P<0.05)和QCAE认知共情得分(β=-0.34,P<0.01)更低。结论:精神分裂症患者表情识别、心理推理能力和共情存在缺损,并且患者表情识别的异常与其心理推理能力和共情的缺损相关。

可拓理论在技术演化与预测中的应用潜力

[目的/意义]可拓理论是一种围绕矛盾问题本质和转化变换机理寻求解决问题途径的方法论,将其引入技术演化与预测分析,是应对当下国际科技竞合环境、面向国家科技自立自强需求的创新融合举措。在揭示复杂技术创新过程中,不仅可以强化分析方法科学性,提高信度和效度,也为更深入地理解技术演化机制,寻找潜在发展机会提供可能。[方法/过程]本文在系统梳理技术演化与预测主流方法、可拓理论在知识管理与技术创新典型应用的基础上,总结当前方法存在的不足。以面向农业遥感领域作物估产问题为例,进行可拓分析和定性验证。[结果/结论]从理论基础、表达方式和分析过程3个角度,探讨可拓理论用于挖掘领域技术发展前沿方向的意义与潜力,指出利用可拓理论分析领域技术演化过程需要注意的问题,并通过案例分析证明理论思想的适用性。

基于超网络理论的高铁快运枢纽节点选址与分级研究

随着我国高速铁路的发展,大幅度实现了客货分流的既有目标,运力充足促进了高铁快运的发展,然而我国尚未形成以枢纽节点为中心的高铁快运网络,货物的集疏运效率较低,作业系统尚未完善,因而对枢纽节点的选择和分级是提高高铁快运效率的重要手段。首先分析我国高铁快运的发展现状,结合超网络理论对高铁快运枢纽城市进行选择与分级,计算节点静态拓扑参数得到枢纽节点初选集,再从节点失效后对网络韧性的影响角度出发对初选集中节点进行筛选,计算网络鲁棒性来衡量线网韧性从而证明结论合理性,确定节点位置集合;使用Logit模型标定高速铁路货运占比,计算节点加权介数,最后利用LSTM网络对货运量进行预测,确定我国高铁快运一级枢纽节点集合,按服务区域统筹货物集疏运工作,提高高铁快运的市场竞争力。

考虑海运竞争影响的中欧班列运营商竞合关系研究

中欧班列(简称班列)市场竞争分为内部竞争与外部竞争,内部竞争来自班列运营商间的同质化竞争,外部竞争来自海运的差异化竞争。目前班列正陆续开展区域化合作探索。为探究在海运竞争影响下,班列运营商采取何种竞合策略效益更优,分别构建合作与非合作模式下,两班列运营商与海运班轮公司竞争的博弈模型。同时考虑班列运营商间的地理位置差异,采用Hotelling模型分析合作模式下两班列运营商的收益分配。选取已初步开展合作的班列运营商相关数据及海运运营数据进行实证分析。研究结果表明:1)从市场化运营发展来看,班列运营商开展合作模式可同时提高自身均衡运价及总市场份额,更有利于班列市场的扩张;班列运营商可在开展合作模式的同时适当提高运价,进一步开放高附加值货物市场,促进班列的高质量发展。2)班列运营商可以统一定价的形式开展合作,以运输成本及空间地理位置差异产生的费用为依据明确各自运货量,实现合作模式下班列运营商效益分配的初步探索。3)若给定班列实际运营参数,可根据非合作模式班列运营商竞争强度对总收益的影响确定阈值点,当实际竞争强度小于该阈值时,班列运营商选择合作模式更优;班列运输时效性的增加对合作模式下班列运营商总效益的影响更为显著,可作为合作模式发展的优化方向。研究可为班列运营商竞争与合作决策及班列高质量发展提供参考。