Full-Scale Isogeometric Topology Optimization of Cellular Structures Based on Kirchhoff-Love Shells

Cellular thin-shell structures are widely applied in ultralightweight designs due to their high bearing capacity and strength-to-weight ratio.In this paper,a full-scale isogeometric topology optimization(ITO)method based on Kirchhoff-Love shells for designing cellular tshin-shell structures with excellent damage tolerance ability is proposed.This method utilizes high-order continuous nonuniform rational B-splines(NURBS)as basis functions for Kirchhoff-Love shell elements.The geometric and analysis models of thin shells are unified by isogeometric analysis(IGA)to avoid geometric approximation error and improve computational accuracy.The topological configurations of thin-shell structures are described by constructing the effective density field on the controlmesh.Local volume constraints are imposed in the proximity of each control point to obtain bone-like cellular structures.To facilitate numerical implementation,the p-norm function is used to aggregate local volume constraints into an equivalent global constraint.Several numerical examples are provided to demonstrate the effectiveness of the proposed method.After simulation and comparative analysis,the results indicate that the cellular thin-shell structures optimized by the proposed method exhibit great load-carrying behavior and high damage robustness.

Chinese Culture,Classical Philosophy,and the Cultivation of Life

This paper explores the intricate relationship between Chinese culture and the nation’s rise,emphasizing the indispensable role of cultural education in fostering a robust national spirit and civilization.Drawing from classical Chinese texts and contemporary philosophical insights,the study examines how cultural virtues and educational practices can lead to societal harmony,national rejuvenation,and global contributions.The analysis highlights the enduring relevance of Confucian principles and their potential to address modern challenges,advocating for a renewed focus on cultural education to achieve a prosperous and peaceful world.Additionally,it underscores the necessity of integrating traditional values with modern educational practices to create a holistic approach that fosters ethical leadership and global cooperation.

Love Donation

At my school,we made donations to children in the flooded areas last week.All the teachers and students volunteered,so did I.Besides books,I donated schoolbags,clothes,toys and so on.I am willing giving①away these things,because I feel it's my duty to help those in trouble.

Analyzing the Differences in the Concepts of Love Between Korean and American Women Using the Female Characters in Kim Ji-young,Born in 1982 and The Sun Also Rises as Examples

This paper scrutinizes the differences in the conceptualization of love between Korean and American women.Grounded in an analysis of literary figures,Brett and Kim Ji-young,the study unravels the intricate interplay of cultural,historical,and societal forces shaping these perspectives.The contrasting landscapes of the United States,driven by ideals of freedom and individualism,and Korea,entrenched in Confucian values and collectivism,serve as crucibles for forming women’s roles,self-perception,and societal expectations.The examination extends to communication styles,illuminating the directness of American expression versus Korea’s reliance on formalism.Through this exploration,the paper illustrates the profound impact of cultural contexts on the intricate tapestry of love,offering a nuanced understanding of divergent viewpoints within a global context.

A Few Important and Original Aspects of Carlo Cattaneo’s Philosophical-Linguistic Ideas

The essay has two main purposes.The first is a general reconstruction of Cattaneo’s linguistic thought,highlighting the most important aspects of both his reflections on the connection between language and the community of speakers,and his study of the functions and properties of language.The latter includes an analysis of the influence Cattaneo’s philosophy had on the sphere of Italian linguistics at the turn of the 20th century.

基于改进Frequency-Bessel变换法的主动源Love波频散分析

近年来,Love波多道分析技术在浅地表结构探测中受到越来越广泛的应用.与Rayleigh波相比,Love波相速度不受纵波速度影响,其反演参数较少,可使反演过程更加稳定、求解的横波速度模型更加可靠.高分辨率和多模式面波频散分析是面波多道分析技术中至关重要的一环.本文利用改进Frequency-Bessel变换法对主动源Love波进行频散分析.通过改进的0阶Frequency-Bessel变换,将时间-空间域多道Love波记录变换到频率-波数域,获得其频散能量谱.通过公式推导和数值模拟,验证了该方法的有效性.实例测试表明,该方法具有较高的分辨率和多模式分辨能力,为多分量面波勘探提供了一种有效的频散分析手段.

Love型槽波三维地震物理模拟试验研究

三维槽波地震物理模拟技术一直以来都是超声地震物理模拟的一个难题,国内外开展的相关工作较少。要成功模拟出Love型槽波,需要从槽波波场特征、模型设计浇筑、数据采集系统、固体采集耦合等方面系统考虑。针对三维槽波地震物理模拟成功的关键技术参数分析、发射接收系统关键器件-换能器的性能特征、不同直径换能器组合的激发接收方式、槽波物理模型设计制作以及固体模型数据采集等方面开展试验研究,成功模拟出了特征明显的Love型透射槽波。研究结果表明:①模型设计时煤层厚度不能大于30 mm,但必须大于换能器尺寸的2倍以上,且应与探头激发的波长相当,否则无法成功激发出明显的Love型槽波;②直径1 mm的点状换能器和直径8 mm的平面换能器,在无负载条件下,从能量传输效率、子波幅频特性等方面对比,平面换能器均优于点状换能器;③点状换能器和平面换能器不同组合方式作为激发、接收点,在铝板和有机玻璃板为负载的综合试验情况下,要在现有设备条件下实现三维槽波物理模拟只能采用平面换能器作为接收点,激发源可任意选择;④平面换能器激发接收的Love型槽波信噪比高、艾里相能量强,能清晰分辨模型中断层,而点状换能器激发接收的槽波记录信噪比、艾里相能量较弱,无法识别模型中的构造。

Philosophy Does Not Mean Love for Wisdom:Case study of Hebrew Old Testament Phalasaphiya,i.e.,False——Prophecy,Produced Philosophy

The study digs deep into the Semitic-Hebrew Old Testament roots of the word“philosophy”particularly,noting Judges 6:13,Hebrew“Niphilo-tha esh sophru-lanu-abbotenu”transliterated into koine Greek New Testament as“phi-lo-sophia”which means“wonder stories(or teachings)taught us by our fathers;with the figurative meaning as,‘Are you sure God exists?’”.The study,through its Semitic textual linguistic methodology,also identified Deuteronomy 25:3,Hebrew“Ha-Philo ha-Shophet”,which means“Human Judgments”,is another form of the Hebrew“Phenosophi”(i.e.,human additions,Deut 25:3);then,2 Samuel 3:34,Hebrew“Na-Phala-yo-shophim”(i.e.,outdated or dead);please see Colossians 2:8,or to fall and die;also,2 Kings 10:23,Hebrew“Phen-Yeo-Shophu”(i.e.,Godless people seen also in Job 9:24,Hebrew“Phenoshophet”(i.e.,Godless or blind Judgements=Note also Job 22:13,Hebrew“Ara-Phel-yi-shophet”=blind or bad judges;also in 2 Corinthians 4:4,Greek New Testament“Tuphlosen(i.e.,blindness).The study observed that 1 Chro 2:47,Hebrew“Epha-we-shaaph”is the Noun form of the Verb“E-phala-shaaphi”,which means“cleverly invented,vague,obscure or added”.The study recommends more studies on the origins and true meaning of philosophy;particularly,looking at Genesis 50:1,Hebrew“Phiolyoseph”which means,“worthless and helpless human knowledge”,while Genesis 48:11,Hebrew“Philalyoseph means,“I thought(I will not see)you again(yoseph=Joseph).If we go to the Septuagint Greek Old Testament Genesis 37:3-4,the Greek“Phileo-Yoseph”means“(Israel),loved Joseph”.The same Septuagint transliterated Daniel 1:20,Hebrew“Haheretumim and“Ha(philah)shaphim”,as Sophoi and Philosophoi,i.e.,magicians and wizards.The study has also included Hebrew O.T.words or dictionary which produced the word“philosophy”.

带有旋转的压电半导体层状结构中的广义Love波

研究了半空间上带有旋转压电半导体覆盖层状结构中的广义Love波.以弹性半空间材料为基底,带有厚度为h的压电半导体覆盖层.基于压电半导体材料的本构方程以及考虑旋转效应的控制方程,结合边界条件以及广义Love波函数的试探解,推导出考虑旋转效应的压电半导体层状结构中广义Love波的波速方程,从而为压电半导体材料在工程中的应用提供理论基础.

Love型槽波物理模拟及对断层的响应研究

槽波地震勘探因为具有分辨率高、能量衰减小的特点,在煤矿井下隐伏致灾体的地球物理勘探中已得到了广泛的应用。但现阶段的槽波探测精度尚无法满足矿山智能化的要求。目前,物理模拟多以二维模型条件下的Rayleigh型槽波模拟为主,Love型槽波研究较少。为了掌握Love型槽波的传播规律,进行了三维槽波物理模拟中的Love型槽波研究。首先,通过波动方程和频散曲线分析,研究了Love型槽波的波动及质点振动特征;然后以相似性原则为基础,通过构建类比于野外采集的激发、接收、同步装置,搭建了槽波物理模拟平台;随后通过硅橡胶和树脂等材料的配比选择,制作了符合实际地层岩层属性的地震物理模型;最后通过设计的3种典型观测系统,进行槽波超声物理模拟,成功观测到了物理模型中的Love型槽波。通过对煤层和围岩中2条测线的波场记录和频散曲线的对比分析,特别是理论曲线的符合程度进一步验证了模拟的有效性。同时,通过对横穿断层和正常煤层的2条测线Love型槽波波场的对比发现,断层前后波场频率成分发生了以Airy相为分界的明显转换,而且过断层后槽波能量几乎全部被衰减。研究结果将为后续定量、精细化槽波地震勘探提供采集、处理及解释等方法技术的理论支撑。

The Essence of Sport and Tourism-Commonplace and Philosophical Interpretation

The paper is aimed at presentation of the two basic ways of human cognition,which have been used for ages to get to the essence of the human phenomenon of sport and tourism.The first of them is connected mainly with the commonplace standpoint on sport,which is considerably more popular and known by modern people than the second-the philosophical one.The latter is usually used as a point of departure for objective,methodical,and purposeful attempts at getting to the very essence of sport through systematic research,various ideological disputes,various publications,etc.Hence the basic aim of the paper is an attempt at answering the question:which of the abovementioned ways-if any-leads to the final explanation of the essence of sport and tourism?It requires however further philosophical research,further comparative studies,detailed systematic analyses,etc.,and the presented paper is only an initial contribution to them.

Muslim Confucian Philosophy:Islamic-Confucian Dialogue and the Integration of Civilizations

At the end of the Ming Dynasty and at the beginning of the Qing Dynasty,a new theory of learning was created-Muslim Confucian Study(Chinese Islamic Philosophy)-on the basis of Islamic philosophy and under the influence of Confucianism.Wang Daiyu(1570-1660)and Liu Zhi(1660-1739)were two great Huiru(Muslim Confucian)scholars at that time.They published Zhengjiao zhenquan(The real commentary on the tire teaching),Tianfang xingli(Nature and principle in Islam)major books.Their approach is distinguished from that of other Muslim scholars in that they addressed the basic articles of Islamic thought with Confucian terminology and categories.The study deals with the Islamic worldview,and with the practices that make it possible for people to bring themselves into conformity with that worldview.However,the teaching of the Muslim Confucian was continuous with those of Mainstream Islam.In my research,I attempted to answer two questions:(a)How did Muslim Confucian Study Inherit the Mainstream Islamic Thought?(b)What is the value and contribution of the World Islamic philology and civilization?

因难见巧:诗歌First Love的不可译因素汉译

在中西翻译史上,关于诗歌可译性和不可译性的争论由来已久。不可译因素的客观存在给诗歌翻译带来了诸多困难和障碍,本文以约翰•克莱尔的诗歌First Love的不同译本,分析音步、押韵和诗歌风格等不可译因素的翻译策略,探讨译者如何巧妙地化“不可译”为“可译”。

Research on Unreliable Narration of Love Writing in “The Bear Came over the Mountain”

Alice Munro,a famous Canadian Canadian short-story writer.She gained the Nobel Prize for Literature in 2013.Munro’s works focus on women and adolescents.She also writes about the illness and love of the elderly.“The Bear Came over the Mountain”is one of them.In this story,Munro adopts unreliable narration to depict love between Grant and Fiona.This paper aims to study the love writing and its unreliable narration in this story.Based on the text of love writing,this paper analyzes the specific strategies of unreliable narration.The author believes that the unreliable narration of the love text in the story can be divided into the unreliable narration of character type and information type.Through analysis of these two types of narration in the story,special meaning of unreliable narration to describe love can be found.Besides,Munro’s description also contains her own insight of love:the course of true love does not always run smooth.

Reflections on the Three Controversies in Economic Methodology by Virtue of the Philosophy of Science

The philosophical foundation of the mainstream neoclassical economics is empirical philosophy.The controversies of economic methodology over inductive and deductive methods,over verificationistic and falsificationistic approaches,and over positive and normative analyses in the evolution of economics are associated with those in the philosophy of science.The evolution of philosophy of science suggests that the above-mentioned pairs of economic methodologies should be appropriately combined when used in economics.It is not sensible to overemphasize either one inside each pair of economic methodologies.

Embodiment of Rationality:Philosophical Interpretation of Embodied Cognition

Under the influence of European rationalism,which holds that human rationality is higher than,or at least independent of human sensory cognition,the first generation of cognitive science advocates for disembodied cognition,manifesting the concept of dualism of mind and body.With the development of cognitive science in the 1980s,the second generation of cognitive science redefines the relationship between mind and body,thought and behavior,and reason and feeling and puts forward the concept of embodied cognition,representing monism of mind and body.It is claimed that the formation of concepts,categorical cognition and the evolution of rational thinking are characterized by embodiment,which is the necessary condition and basis for the formation of human rationality.The current study traces the shift of cognitive science from dualism to monism of mind and body and explores the relationship between rationality and sensibility from the perspective of philosophical basis and interpretations,with an aim to achieve a better understanding and thorough interpretation of human rationality.In this heated discussion about embodied cognition,there are still some fundamental questions that need to be further clarified,such as the essence and mechanism of human cognition,the ways that human body participates in cognitive activities,especially imagination and reasoning.The research paradigm of embodied cognition and its relevant theory have not been established and developed yet,and empirical research from interdisciplinary perspectives is far from enough to provide hard evidence for embodied cognition.

Mother’s Love

We all need love,and we also need to show love to others.The person I care about the most is my mom.Her name is Miss Zhao.She is 41 years old and has long hair.She’s tall and a little bit fat.She’s a kind and hard-working person.She likes to dance and she’s really good at cooking tasty food.She comes from Anhui,and she can speak both Mandarin and Anhui dialect.

新发展理念助力新质生产力加快形成:理论逻辑与实现路径

“新质生产力”的提出作为马克思主义中国化的新发展具有重要理论意义和现实意义。新质生产力的提出绝不是对马克思主义历史唯物论生产力概念的否定,而是新时代对生产力概念守正创新的重要发展。在加快形成新质生产力的过程中要坚定不移贯彻新发展理念,将创新理念作为加快形成新质生产力的第一动力,将协调发展理念作为加快形成新质生产力的内在要求,将绿色发展理念作为加快形成新质生产力的重要方向,将开放发展理念作为加快形成新质生产力的有效途径,将共享发展理念作为加快形成新质生产力的本质要求。新时代应坚定地以新发展理念推动新质生产力加快形成,为我国经济高质量发展赋予新动能。