Detection of Turbulence Anomalies Using a Symbolic Classifier Algorithm in Airborne Quick Access Record(QAR)Data Analysis

As the risks associated with air turbulence are intensified by climate change and the growth of the aviation industry,it has become imperative to monitor and mitigate these threats to ensure civil aviation safety.The eddy dissipation rate(EDR)has been established as the standard metric for quantifying turbulence in civil aviation.This study aims to explore a universally applicable symbolic classification approach based on genetic programming to detect turbulence anomalies using quick access recorder(QAR)data.The detection of atmospheric turbulence is approached as an anomaly detection problem.Comparative evaluations demonstrate that this approach performs on par with direct EDR calculation methods in identifying turbulence events.Moreover,comparisons with alternative machine learning techniques indicate that the proposed technique is the optimal methodology currently available.In summary,the use of symbolic classification via genetic programming enables accurate turbulence detection from QAR data,comparable to that with established EDR approaches and surpassing that achieved with machine learning algorithms.This finding highlights the potential of integrating symbolic classifiers into turbulence monitoring systems to enhance civil aviation safety amidst rising environmental and operational hazards.

Approximately Bi-Similar Symbolic Model for Discretetime Interconnected Switched System

Dear Editor,This letter concerns the development of approximately bi-similar symbolic models for a discrete-time interconnected switched system(DT-ISS).The DT-ISS under consideration is formed by connecting multiple switched systems known as component switched systems(CSSs).Although the problem of constructing approximately bi-similar symbolic models for DT-ISS has been addressed in some literature,the previous works have relied on the assumption that all the subsystems of CSSs are incrementally input-state stable.

A Study on the Symbol-Based Narrative in the International Communication of Cities

Cultural symbols,a manifestation of cities’cultural resources,are not only signs that frame concepts but also forms that express meanings.Exploring the international communication of cities from the perspective of symbols,this paper analyzes in depth how cities create their cultural symbols in the dynamic process of international communication in an era of symbol-based digital media,and how they develop their narratives and explain meanings through the dissemination of symbols when telling their stories to international audiences,thus enhancing the efficiency and effectiveness of their international communication efforts.

Symbols in The Magic Barrel

The article takes the famous modern American Jewish writer Bernard Malamud’s novel The Magic Barrel as the object of study,and uses symbolism to interpret it,analyzing it one by one in terms of the magic barrel,the colors,the seasons and the windows,respectively,so as to reveal the process of getting rid of the childishness within the novel’s male protagonist,Leo Finkel,who is maturing,as well as the novel’s Jewish theme of searching for the soul of the self.

A Study on Introducing Logical Symbols with Stories to Improve Critical Thinking with a Comparative Experiment

Critical thinking is becoming more and more important in modern society.Logical thinking is one of the core abilities of critical thinking.However,teaching logic to children faces some challenges especially when introducing logical symbols such as the implication symbol.Using stories to introduce logical symbols will address this problem and improve critical thinking.

Camilla Guerrieri’s Portrait of Guidobaldo II della Rovere:Symbols of Honor and Power

The Altomani&Sons Collection owns a remarkable newly discovered portrait of Guidobaldo II della Rovere,Duke of Urbino(1514-1574),a historical military figure who was a condottiere,ruler of Urbino,Commander-in-chief of the Papal Estate,and Perfect of Rome,as well as a collector and patron of the Fine Arts.Camilla Guerrieri Nati(1628-1694),a seventeenth-century Italian painter from Fossombrone(in the province of Pesaro and Urbino),portrayed this heroic personage surrounded by emblems associated with his military courage and leadership,including his plumed burgonet helmet,metal gilded armor,a necklace with the golden fleece,and batons of secular and religious dominions.This oil painting on copper-considered a precious metal at the time-emphasizes the importance of the commission.The material and technique also reveals a unique artistic achievement in that it provides the painting with a smooth,reflective surface and vibrant coloration,symbolizing precious imagery.

Multidimensional Interpretation of National Spirit and Literary Education:Cultural and Educational Value of Color Symbols in Tolstoy’s Works

This article analyzes the symbolic colors red,white,and blue in Lev Tolstoy’s works,exploring their interrelation and educational significance in reflecting the Russian national spirit.The article first reviews the symbolic significance of red,white,and blue in Russian history,and then analyzes in depth the multiple connotations of colors in Tolstoy’s classic works Anna Karenina,War and Peace,and Resurrection.Through the combination of color symbols with characters’destinies,inner conflict,and historical background,this paper explores how Tolstoy’s literary works reflect the historical changes and national spirit of Russia,especially the important value in education and cultural inheritance,providing a new perspective for the study of literary education and emphasizing the educational role of color symbols in literary works in shaping national spirit and cultural identity.

研究型大学教师参与教学改革的动力及其特征研究-基于符号互动理论分析的视角

大学教学质量的提升需要不断探索教学改革,其具体执行靠一线教师,一线教师有动力参与其中是教学改革成功的关键。文章基于质性研究方法,采用访谈法、参与式观察法、实物收集法等收集资料;对18所研究型大学、共计11个一级学科的33位一线教师进行深度访谈;运用Nvivo软件按照三级编码的操作程序和扎根理论的方法取径完成了理论建构。研究发现,大学教师参与教学改革包括不同主体主导因素、实践过程主导因素、目标结果主导因素和情境场景主导因素共四类32种动力因素。基于符号互动理论分析视角发现,研究型大学教师参与教.学改革的动力具有情境性、能动性和变化性特征,其动力因素具有多元性、矛盾性和复杂性特征,各个动力因素之间具有开放性、互动性和共生性特征。基于前述特征,政府、高校、二级学院教学管理者等需要营造积极的教学改革文化,发挥教学制度的正面效应,提供相应的教学支持保障。

从网络文学到IP衍生:后期现代语境中民俗符号的表达转向

后期现代已成为当今人文科学研究的重要话语语境。网络文学及其IP衍生是“现代学”民俗的两个重要领域。随着融合媒介的成熟,按照其所蕴涵的三层逻辑,网络文学及其IP衍生两个领域中的民俗符号在技术层、主体层、空间层分别发生了表达转向。民俗符号化再现媒介从由语言系统规训的网络文学这一需要深读的“记谱媒介”转换为IP衍生中更符合当今图像化追求的“感官性媒介”;民俗话语主体发生变动,网络文学作者群作为民俗符号表达的话语主体在文学范围外让位于商业精英群,民俗文化产业的边界不断拓宽;民俗符号是文化空间中具有民俗性和艺术性的符号,其经由审美从网络文学“准不可能世界”化入实在世界的“日常生活”,使民众达到“超脱庸常”的境界。“现代学”层面的民俗符号在将来会激活更多意想不到的妙处,而民俗学研究也需要“新尺度和新形态”。

经济与情感:后现代消费中乡村民宿空间符号建构的双重逻辑及机制

后现代消费中民宿作为乡村旅游重要的消费场所和空间,其符号消费现象客观存在,探讨其消费空间的符号生产与建构有助于乡村民宿产业的高质量发展。基于符号消费和空间生产理论,提出后现代消费中乡村民宿空间符号建构分析框架,并以成都明月村为案例地的分析发现:后现代消费中乡村民宿空间符号的生产建构是一个涉及多主体、多要素、多层次的符号化运作和互动展演过程;符号消费的经济逻辑和文化体验的情感逻辑是乡村民宿空间符号建构的双重逻辑,二者彼此权衡又互为补充,共同促进乡村民宿空间符号的可持续生产和建构;后现代消费中乡村民宿空间符号建构机制包括双重逻辑、符号建构过程、符号建构主体、符号建构路径等内容。

民俗体育旅游同质化问题分析与评价体系构建

民俗体育旅游的同质化是制约民俗体育可持续发展和旅游产业多样化的关键因素。通过文献梳理,将民俗体育旅游同质化的表现归纳为产品内容与形式的相似性、受众需求和审美的趋同化、产品符号的简化与雷同,以及文化体验的单一化。进一步分析指出,人文环境资本化、旅游产品符号化、民俗体育旅游意象均质化是导致民俗体育旅游同质化的主要原因。采用德尔菲法构建了包括3个系统层、6个子系统层和18个指标层的评价体系,以科学评估民俗体育旅游发展的同质化水平。旨在为民俗体育旅游产业的政策制定与市场优化提供依据。

新不如旧?使用痕迹和产品类型对购买意愿的交互影响研究

本文探讨了产品使用痕迹与产品类型对购买意愿的交互效应和影响机制。通过实验1和实验2,发现对于实用品,有使用痕迹的产品广告能引发感知有效性进而提高购买意愿;而对于象征品,无使用痕迹的产品广告则能够通过降低感知自我形象威胁进而提高购买意愿。实验3针对实用品进一步检验了不同程度的使用痕迹的影响差异。结果表明,当使用痕迹严重到会影响消费者关于产品的质量判断时,原有效应会发生逆转,即使用痕迹会导致购买意愿的显著下降。本文的研究结论不仅拓展了广告和产品展示相关理论研究,同时也为品牌和营销人员如何选择或设计合适的产品展示方式提供了指导性建议。

Lea Symbols视力表与HOTV视力表在2.5~5.0岁儿童视力发育评价中的研究应用

目的:运用Lea Symbols视力表、HOTV视力表对2.5~5.0岁正常儿童视力发育情况进行探究,并评价2种视力表的应用效果。方法:以随机顺序先后应用Lea Symbols视力表与HOTV视力表对广州地区2所早教中心及3所幼儿园共461例儿童(922只眼)进行单眼视力检查,所有儿童提前1 d行小瞳下检影验光、眼前节裂隙灯检查、眼底情况、眼球活动、眼位检查,筛选无器质性眼病、屈光度在正常范围的儿童作为研究对象。视力值采用5分记录方法表示。结果:1)可测率(视力表使用配合程度)。407名儿童完成Lea Symbols视力检查,总体可测率92.08%;402名儿童完成HOTV视力检查,总体可测率90.95%;前者可测率高于后者,差异无统计学意义(χ^(2)=0.417,P=0.580)。进一步研究发现2种视力的可测率随年龄增长不断提高,儿童3岁之后基本都能完成2种视力的检查。2)2种视力结果及比较(5分记录法表示)。Lea视力值:右眼为4.89±0.05,左眼为4.90±0.05;HOTV视力值:右眼为4.84±0.05,左眼为4.85±0.04;前者视力好于后者,差异有统计学意义(右眼:t=3.171,P=0.003;左眼:t=3.230,P=0.003)。3)视力发育与年龄的相关性。2种视力发育与年龄存在显著正相关(P<0.001),即随着年龄的增长,视力水平逐渐提高。4)视力发育与眼别、性别的关系。左右眼之间的视力发育差异无统计学意义(P>0.05);男性儿童的视力发育好于女性,且差异有统计学意义(P<0.05)。结论:Lea Symbols及HOTV视力表建议用于年龄大于3岁儿童的视力检查,且儿童更容易接受Lea Symbols视力表的检查。伴随年龄的增长,儿童的视力发育呈现提高的趋势;Lea视力优于HOTV视力。视力的发育与眼别无关,男性儿童的视力发育快于女性儿童。

The Problems and Upgrade Strategies for City Symbolic Image of Yibin in Sichuan Province

The connotation of city symbolic image was redefined in this study.Based on this,the main shortages of Yibin City symbolic image were listed and analyzed with an emphasis.And then the specific strategies to improve intrinsic image and symbolic image of the city were proposed with a pertinence,so as to provide reference for establishment of Yibin City symbolic image and development of export-oriented economy.

Symbolic Meanings of “Rose” in A Rose for Emily

A Rose for Emily is one of William Faulkner's most famous short stories.Through the representing of patriarchy influence on Emily,Faulkner shows his readers Emily's tragic life.From the diverse meanings of the "Rose" to the debated themes,this story has been discussed before.This paper tries to analyze the three stages of Emily's struggle for love in order to represent the symbolism of the "Rose" from the perspective of feminism.It also represents the root of Emily's tragedy and the sympathy for the tragic fate of the Southern women.

近代戏院建筑立面语言与广告符号研究——以上海为例

近代开埠以来,随着工业和商贸的发展,城市开始以商品经济发展为主,传统戏曲和西方影戏成为日常娱乐消费内容,戏院建筑也开始具有商业属性,其立面形式成为吸引大众的“招牌”。在过往的研究中,戏院建筑研究集中在空间形式上,建筑立面的研究相对较少。因此,研究以近代报刊和档案中的戏院建筑记录为基础,将建筑立面语言元素作为单个概率事件,通过信息熵和相对丰富度计算,衡量近代上海戏院建筑语言多样性特征和发展趋向,提取标识性符号,并归纳建筑语言的构成特征和符号类型。发现存在社会认同变迁下新形式的迭代,消费层级分化也影响标志性形式塑造,在形式传播过程中出现符号化运用,形成普适性的广告符号。

Symbolism And The Theme of Works

In art and literature,writers like to use symbolism to reveal the themes of works.In this thesis,the writer will talk about the usage of symbolism in art and literature in brief.Then the writer will also discuss the usage of symbolism in the story of the Snake written by John.Steinbeck(a famous American novelist) by analyzing how the symbols in the story contribute to the meaning and the themes of the story.

Inverse kinematic deriving and actuator control of Delta robot using symbolic computation technology

In order to effectively derive the inverse kinematic solution of the Delta robot and realize actuator control a description of the linear graph principle for automatically generating kinematic equations in a mechanical system as well as the symbolic computation implementation of this procedure is reviewed and projected into the Delta robot. Based on the established linear graph representation the explicit symbolic expression of constraint equations and inverse kinematic solutions are obtained successfully using a symbolic computation engine Maple so that actuator control and trajectory tracking can be directly realized.Two practical motions the circular path and Adept motion are simulated for the validation of symbolic solutions respectively.Results indicate that the simulation satisfies the requirement of the quick motion within an acceptable threshold. Thus the precision of kinematic response can be confirmed and the correctness of inverse solution is verified.

CURRENT MODE CIRCUIT SYMBOLIC ANALYSIS WITH MATH-EMATICA

A practical method of current mode circuit symbolic analysis using Mathematica is proposed. With the powerful symbolic manipulation capacity of Mathematica, current mode circuit symbolic analysis can be significantly simplified. The active devices are modelled by nullors. The examples of current mode filters using CCIIs are presented.

The Symbolic Meanings of the Mysterious Colors in The Scarlet Letter

Nathaniel Hawthorne'masterpiece The Scarlet Letter is notable for its symbolism. Symbolism plays a significant role both in developing the theme of this book and enhancing the artistic effects of his work greatly. Symbolism is a literary device which is adopted to portray another object or individual. In The Scarlet Letter, Nathaniel Hawthorne often used a tangible object to represent an undefined idea, complex in scope and significance. This paper studies the symbol meanings of some important col?ors- red or scarlet, gray and green which are described in the novel to make the readers get a deeper and clearer understanding of the use of symbolism.