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Unveiling the relationship between Fabry-Perot laser structures and optical field distribution via symbolic regression
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作者 LI Wenqiang WU Min +2 位作者 LI Weijun HAO Meilan YU Lina 《Optoelectronics Letters》 2025年第3期149-154,共6页
In recent years,machine learning(ML)techniques have been shown to be effective in accelerating the development process of optoelectronic devices.However,as"black box"models,they have limited theoretical inte... In recent years,machine learning(ML)techniques have been shown to be effective in accelerating the development process of optoelectronic devices.However,as"black box"models,they have limited theoretical interpretability.In this work,we leverage symbolic regression(SR)technique for discovering the explicit symbolic relationship between the structure of the optoelectronic Fabry-Perot(FP)laser and its optical field distribution,which greatly improves model transparency compared to ML.We demonstrated that the expressions explored through SR exhibit lower errors on the test set compared to ML models,which suggests that the expressions have better fitting and generalization capabilities. 展开更多
关键词 machine learning optoelectronic deviceshoweverasblack optical field distributionwhich symbolic regression symbolic regression sr technique Fabry Perot laser discovering explicit symbolic relationship optical field distribution
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Digital Dissemination and Consumption of Cultural Symbols in Lingnan’s Traditional Villages
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作者 Xinrui Cai 《Proceedings of Business and Economic Studies》 2025年第6期24-31,共8页
Ancient villages in Lingnan serve as crucial carriers of Lingnan culture.Their abundant cultural symbols now face the dual task of inheritance and innovation in the digital era.Drawing on Stuart Hall’s encoding/decod... Ancient villages in Lingnan serve as crucial carriers of Lingnan culture.Their abundant cultural symbols now face the dual task of inheritance and innovation in the digital era.Drawing on Stuart Hall’s encoding/decoding theory,this study explores how representative cultural symbols of Lingnan’s ancient villages are digitally translated and disseminated.By analyzing specific cases,it elucidates the logic of audience interaction and consumption during the decoding of these digital cultural symbols.This study aims to offer valuable insights for revitalizing ancient village culture and informing its sustainable industrial development. 展开更多
关键词 Ancient villages of Lingnan Cultural symbols Digital dissemination Encoding and decoding symbolic consumption
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Analysis of the Complexity and Symbolic Significance of Lensky’s Character in Eugene Onegin
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作者 Shiwei Liang 《Journal of Contemporary Educational Research》 2025年第3期67-72,共6页
The character of Lensky in Eugene Onegin is one of the most discussed figures in the novel.He is the friend of Eugene Onegin and represents a contradictory personality.In the novel,Lensky displays a complex set of cha... The character of Lensky in Eugene Onegin is one of the most discussed figures in the novel.He is the friend of Eugene Onegin and represents a contradictory personality.In the novel,Lensky displays a complex set of characteristics,appearing both elegant and noble on the outside,while concealing a deep inner loneliness and conflict.His attitude toward love and his dissatisfaction with society make him a dramatic and profound character in the story.By analyzing the character of Lensky,we can explore his role in the novel and his relationships with other characters.Lensky’s presence not only enriches the plot but also presents a figure filled with inner contradictions and emotional struggles.His friendship and rivalry with Eugene Onegin,as well as his admiration and helplessness in regard to Olga,showcase his complex inner world and reflections on life.Furthermore,the character of Lensky carries a certain symbolic significance.He can be seen as a metaphor for Russian society and culture at the time.His loneliness and inner conflict symbolize the limitations of Russian society and culture,while also reflecting Pushkin’s idealized pursuit of love and friendship,as well as his critical view of reality.In conclusion,through a deep analysis of Lensky’s character,we can better understand the portrayal of characters and the development of the plot in Eugene Onegin.It also provides readers with a perspective on Pushkin’s thoughts and observations on human nature,society,and culture. 展开更多
关键词 CHARACTER ANALYSIS PERSONALITY symbolic significance
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The Withered Rose and Decay of the South:Symbolic Systems in A Rose for Emily
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作者 MIN Hong-yan 《Journal of Literature and Art Studies》 2025年第5期383-390,共8页
William Faulkner’s Southern Gothic style features fragmented narratives and rich symbolism that explore characters’psychological complexity and the decay of Southern society.In his seminal work exploring Emily Grier... William Faulkner’s Southern Gothic style features fragmented narratives and rich symbolism that explore characters’psychological complexity and the decay of Southern society.In his seminal work exploring Emily Grierson’s tragic life,Faulkner employs a rich symbolic system that transcends mere literary decoration,instead functioning as a complex interpretative lens through which the disintegration of traditional Southern social structures can be understood.This paper argues that the symbolic framework in the narrative not only shapes Emily’s personal tragedy but also serves as a profound metaphorical representation of the collapse of the old Southern civilization-a system marked by rigid social hierarchies,racial tensions,and the slow erosion of aristocratic ideals in the face of inevitable social transformation.By dissecting the intricate symbolic elements-from the decaying mansion to the gothic imagery of death and preservation-this analysis reveals how Faulkner’s symbolic methodology becomes a nuanced historical and psychological commentary on the South’s traumatic transition from an antebellum past to a modernizing present. 展开更多
关键词 Southern Gothic symbolISM civilizational decay William Faulkner
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The Literary Effects of Metaphors and Symbolism:A Case Study on Invisible Man by Ralph Ellison
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作者 XIONG Zi-yan WANG Peng-fei 《Journal of Literature and Art Studies》 2025年第5期391-397,共7页
Invisible Man is a novel written by Ralph Ellison,talking about how the protagonist struggled in society as an African-American,sought his own identity and sense of belonging,and finally accepted the reality of being... Invisible Man is a novel written by Ralph Ellison,talking about how the protagonist struggled in society as an African-American,sought his own identity and sense of belonging,and finally accepted the reality of being“invisible”to live underground.The metaphors and symbols as key writing techniques in Invisible Man were analyzed in the paper with certain typical examples to reveal their research values for explorations of race issues in the book.The paper particularly highlights the tension embedded in the metaphors and the sarcasm conveyed through the symbols. 展开更多
关键词 Invisible Man metaphorical tension symbolic sarcasm
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Advancing Code Obfuscation: Novel Opaque Predicate Techniques to Counter Dynamic Symbolic Execution
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作者 Yan Cao Zhizhuang Zhou Yan Zhuang 《Computers, Materials & Continua》 2025年第7期1545-1565,共21页
Code obfuscation is a crucial technique for protecting software against reverse engineering and security attacks.Among various obfuscation methods,opaque predicates,which are recognized as flexible and promising,are w... Code obfuscation is a crucial technique for protecting software against reverse engineering and security attacks.Among various obfuscation methods,opaque predicates,which are recognized as flexible and promising,are widely used to increase control-flow complexity.However,traditional opaque predicates are increasingly vulnerable to Dynamic Symbolic Execution(DSE)attacks,which can efficiently identify and eliminate them.To address this issue,this paper proposes a novel approach for anti-DSE opaque predicates that effectively resists symbolic execution-based deobfuscation.Our method introduces two key techniques:single-way function opaque predicates,which leverage hash functions and logarithmic transformations to prevent constraint solvers from generating feasible inputs,and path-explosion opaque predicates,which generate an excessive number of execution paths,overwhelming symbolic execution engines.To evaluate the effectiveness of our approach,we implemented a prototype obfuscation tool and tested it against prominent symbolic execution engines.Experimental results demonstrate that our approach signifi-cantly increases resilience against symbolic execution attacks while maintaining acceptable performance overhead.This paper provides a robust and scalable obfuscation technique,contributing to the enhancement of software protection strategies in adversarial environments. 展开更多
关键词 Dynamic symbolic execution opaque predicates code obfuscation
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Conversion of Symbols According to the Relief Needs of the Buddhist Community in Binh Dinh Province,Vietnam
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作者 Nguyen Van Du 《Cultural and Religious Studies》 2025年第2期70-81,共12页
The two ancient stone statues worshiped at Nhan Son Pagoda in Nhon Hau Commune,An Nhon Town,Binh Dinh Province,Vietnam,have played different roles and been known by various names throughout history,each tied to myster... The two ancient stone statues worshiped at Nhan Son Pagoda in Nhon Hau Commune,An Nhon Town,Binh Dinh Province,Vietnam,have played different roles and been known by various names throughout history,each tied to mysterious and fascinating stories.To explain the shift from their role as Dharma protectors,known as Dvarapala,in the Do Ban capital temple complex of the Vijaya Dynasty,to their portrayal as close friends in Song Nghia Pagoda,and finally to their current identity as the Red and Black Gods who bless everyone,the author of this article conducted several field trips for deeper insight.The changing roles of these two stone statues at Nhan Son Pagoda reflect the flexible and creative engagement of the Buddhist community in Binh Dinh Province with spiritual symbols,adapting to evolving religious needs. 展开更多
关键词 Nhan Son Pagoda Binh Dinh Ong Do Ong Den symbol
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Symbol Labeling for LDPC Coded Delayed BICM in a Two-Way Relay Channel
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作者 Zhang Zhe Zhou Liang +1 位作者 Du Junyi Zhou Zhiheng 《China Communications》 2025年第10期170-178,共9页
This paper is concerned with design-ing symbol labeling for a low-density parity-check(LDPC)-coded delayed bit-interleaved coded modu-lation(DBICM)scheme in a two-way relay channel(TWRC).We first present some properti... This paper is concerned with design-ing symbol labeling for a low-density parity-check(LDPC)-coded delayed bit-interleaved coded modu-lation(DBICM)scheme in a two-way relay channel(TWRC).We first present some properties of symbol labeling within a phase shift keying(PSK)modula-tion.These properties reduce the candidate labeling search space.Based on this search space,we take DBICM capacity as the cost function and propose a general method for optimizing symbol labeling by em-ploying the differential evolution algorithm.Numeri-cal results show that our labeling obtains a signal-to-noise ratio(SNR)gain up to 0.45 dB with respect to Gray labeling. 展开更多
关键词 delayed BICM LDPC symbol labeling two-way relay channel
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The Solidifying Power of Myth in Cassirer’s Philosophy of Symbolic Forms
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作者 SHEN Bo 《Journal of Literature and Art Studies》 2025年第3期152-157,共6页
Cassirer argues that humans are animals of symbols,and these symbolic forms encompass not only the science of rational logic but also non-logical elements such as mythology and primitive religions.Previous research on... Cassirer argues that humans are animals of symbols,and these symbolic forms encompass not only the science of rational logic but also non-logical elements such as mythology and primitive religions.Previous research on Cassirer’s philosophy of symbolic forms has primarily focused on philosophical connotations,philosophical thoughts,cultural philosophy,and other aspects,yielding abundant results.By examining mythology within the context of symbolic forms,we discover a force within it,namely,the solidifying power.This solidifying power demands that mythology maintain fixed and established forms during its emergence and development,thereby distinguishing it from other symbolic forms.By exploring the development trends and manifestations of the solidifying power in mythology,we can gain a clearer understanding of the path of human intellectual development from childhood to maturity,thus answering the historical question of human essence. 展开更多
关键词 CASSIRER philosophy of symbolic forms MYTHOLOGY solidifying power
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Cultural Symbolism:Translating Costume Imagery in Chu Ci
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作者 YU Yan ZHOU Dan HUA Min 《Cultural and Religious Studies》 2025年第6期309-314,共6页
This paper offers a comprehensive analysis of the costume culture in the translation of Chu Ci,an influential work of Chinese literature.It examines the unique features of Chu Ci’s costume culture,including its histo... This paper offers a comprehensive analysis of the costume culture in the translation of Chu Ci,an influential work of Chinese literature.It examines the unique features of Chu Ci’s costume culture,including its historical and cultural significance,as well as the role of literary imagery in expressing cultural symbolism.The paper also delves into the challenges faced by translators in translating Chu Ci’s highly symbolic costumes and delivering their cultural connotations.The analysis provides insights into the issues of polysemy and translation choices,which are significant obstacles that require careful consideration of contextual usage to achieve meaningful translations.Furthermore,the paper highlights the importance of humanistic implications in interpreting Chu Ci’s costume culture,with the aim of promoting the appreciation and understanding of traditional Chinese culture worldwide. 展开更多
关键词 Chu Ci Chinese literature TRANSLATION costume culture cultural symbolism
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Low-Complexity Digital Backpropagation for High-Symbol-Rate Coherent Optical Fiber Communication Systems
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作者 Tang Du Wu Zhen +4 位作者 Tang Xizi Luo Jiating Luo Ji Zheng Bofang Qiao Yaojun 《China Communications》 2025年第7期170-185,共16页
To achieve a low-complexity nonlinearity compensation(NLC)in high-symbol-rate(HSR)systems,we propose a modified weighted digital backpropagation(M-W-DBP)by jointly shifting the calculated position of nonlinear phase n... To achieve a low-complexity nonlinearity compensation(NLC)in high-symbol-rate(HSR)systems,we propose a modified weighted digital backpropagation(M-W-DBP)by jointly shifting the calculated position of nonlinear phase noise and considering the correlation of neighboring symbols in the NLC section of DBP.Based on this model,with the aid of neural network optimization,a learned version of M-W-DBP(M-W-LDBP)is also proposed and explored.Furthermore,enough technical details are revealed for the first time,including the principle of our proposed M-W-DBP and M-W-LDBP,the training process,and the complexity analysis of different DBPclass NLC algorithms.Evaluated numerically with QPSK,16QAM,and PS-64QAM modulation formats,1-step-per-span(1-StPS)M-W-DBP/LDBP achieves up to 1.29/1.49 dB and 0.63/0.74 dB signal-to-noise ratio improvement compared to chromatic dispersion compensation(CDC)in 90-GBaud and 128-GBaud 1000-km single-channel transmission systems,respectively.Moreover,1-StPS M-W-DBP/LDBP provides a more powerful NLC ability than 2-StPS LDBP but only needs about 60%of the complexity.The effectiveness of the proposed M-W-DBP and M-W-LDBP in the presence of laser phase noise is also verified and the necessity of using the learned version of M-WDBP is also discussed.This work is a comprehensive study of M-W-DBP/LDBP and other DBP-class NLC algorithms in HSR systems. 展开更多
关键词 digital backpropagation fiber nonlinearity fiber optic communication high symbol rate
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The Symbolism of the Marsh Plant,Typha latifolia,in Botticelli’s The Birth of Venus
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作者 Liana De Girolami Cheney 《Journal of Literature and Art Studies》 2025年第9期665-677,共13页
Botticelli’s The Birth of Venus continues to serve as an iconographic enigma and remains an enduring subject of scholarly analysis concerning the significance of mythological art and its symbolism during the Italian ... Botticelli’s The Birth of Venus continues to serve as an iconographic enigma and remains an enduring subject of scholarly analysis concerning the significance of mythological art and its symbolism during the Italian Renaissance.Therefore,it is particularly noteworthy to examine further the symbolic elements embedded within the imagery.This essay focuses on a specific component in the landscape of The Birth of Venus-the marsh plant on the riverbank,commonly known as cattail in English,tifa or stiancia in Italian,and Typha latifolia in Latin.Botticelli’s The Birth of Venus,executed between 1485 and 1490,is a tempera on canvas with gesso and gold applications.It was commissioned with specific aesthetic,cultural,and intellectual objectives and was intended to be displayed in a private chamber for personal viewing by members of the Medici family.Situated initially within the Medicean Villa at Castello,it has been exhibited at the Galleria degli Uffizi in Florence since 1815.This mythological painting exemplifies the Italian Renaissance principles of both physical and metaphysical humanism,visualized in a fusion of pagan and Christian iconography and iconology,incorporating symbolism that engages with antiquity and classical mythology.It also incorporates Italian Renaissance Neoplatonic philosophy,reflects Renaissance love poetry,demonstrates inventive patronage,and embodies spirituality directed towards a higher purpose. 展开更多
关键词 ANTIQUITY humanism mythology Italian Neoplatonism Italian Renaissance poetry BOTTICELLI Medici symbolISM marsh plant cattails
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RED,WHITE AND BLACK:METHODOLOGIES FOR UNDERSTANDING COLOR SYMBOLISM IN MESOPOTAMIAN MAGIC AND RITUAL
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作者 Shiyanthi Thavapalan 《Journal of Ancient Civilizations》 2025年第1期1-23,113,共24页
The color cluster red,black and white occurs in the artistic,ritual and magical activities of virtually all cultures around the world,suggesting their preeminence in human symbolic thought.Among the various explanatio... The color cluster red,black and white occurs in the artistic,ritual and magical activities of virtually all cultures around the world,suggesting their preeminence in human symbolic thought.Among the various explanations that have been brought forth to account for the special status of these three colors are:1)evolutionary/ecological arguments,drawing support from vision science,perceptual philosophy and primate biology;2)cognitive arguments,which pay attention to how human beings categorize and create meaning out of perceptual experiences;3)linguistic arguments,as these are the earliest lexicalized color words in most languages;4)and diverse socio-cultural arguments.This paper will explore the manifestation of red,black and white–both in concrete terms,through the use and manipulation of materials,as well as abstract ideas–in Assyrian and Babylonian magical and ritual activities.It will highlight how meaning is created and communicated by relating colors to natural and supernatural phenomena and will further attempt to provide a methodological framework for the analysis of color symbolism. 展开更多
关键词 Akkadian color terminology color symbolism Mesopotamian magic and ritual MATERIALITY SEMIOTICS solid metaphors
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The Collapse of Cooperation:Extreme Violations of Grice’s Maxims in Emily Grierson’s Dialogue and Their Symbolic Significance
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作者 HUANG Li-hua 《Journal of Literature and Art Studies》 2025年第10期786-789,共4页
This paper argues that the dialogues of Emily Grierson in William Faulkner’s “A Rose for Emily” systematically and profoundly violate H.P. Grice’s Cooperative Principle and its component maxims: Quantity, Quality,... This paper argues that the dialogues of Emily Grierson in William Faulkner’s “A Rose for Emily” systematically and profoundly violate H.P. Grice’s Cooperative Principle and its component maxims: Quantity, Quality, Relation, and Manner, which is not merely a manifestation of her personal eccentricity but also a powerful linguistic act of resistance. Through her non-cooperative speeches, Emily asserts her autonomy, defies the probing and judgmental gaze of her community, and maintains the integrity of her isolated world. Ultimately, she symbolizes the Old South’s desperate, tragic, and often grotesque struggle against the inevitable forces of change and modernization. 展开更多
关键词 Grice’s cooperative principle conversation analysis “A Rose for Emily” non-cooperation symbolISM
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几类常循环码的最小symbol-pair距离
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作者 黄佳怡 夏永波 《湖北大学学报(自然科学版)》 2025年第5期645-652,共8页
高密度数据存储技术旨在以相对较低的成本设计高容量存储。为实现这一目标,文献[1]中引入了新的编码框架并将在此框架下进行编码译码的码称为symbol-pair码。随后,学者们对symbol-pair码进行了广泛研究。在本文中,利用常循环码生成多项... 高密度数据存储技术旨在以相对较低的成本设计高容量存储。为实现这一目标,文献[1]中引入了新的编码框架并将在此框架下进行编码译码的码称为symbol-pair码。随后,学者们对symbol-pair码进行了广泛研究。在本文中,利用常循环码生成多项式的特点以及有限域上解方程组的技巧,给出常循环码的symbol-pair距离达到其Hamming距离两倍的充分条件,确定几类循环码的最小symbol-pair距离,在一些特殊情况下获得几类MDS symbol-pair码。已知的很多结果为本文中所得结果的特殊情况。 展开更多
关键词 symbol-pair码 symbol-pair距离 常循环码 生成多项式
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基于CMSATE和DTCAE的风电机组偏航轴承服役状态评估
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作者 王晓龙 杨秀彬 +4 位作者 陆志鹏 金韩微 张博文 陶振哲 韩会龙 《动力工程学报》 北大核心 2026年第1期138-147,156,共11页
针对难以准确检测风电机组偏航轴承早期退化时刻的问题,提出了一种基于复合多尺度符号注意熵和趋势约束自编码器的服役状态评估模型。首先利用复合多尺度符号注意熵方法从偏航轴承原始振动信号中提取多尺度退化特征,然后利用趋势约束自... 针对难以准确检测风电机组偏航轴承早期退化时刻的问题,提出了一种基于复合多尺度符号注意熵和趋势约束自编码器的服役状态评估模型。首先利用复合多尺度符号注意熵方法从偏航轴承原始振动信号中提取多尺度退化特征,然后利用趋势约束自编码器将多尺度退化特征进行压缩降维,构造出能够准确反映偏航轴承服役状态的健康指标,最后结合切比雪夫不等式的自适应健康阈值策略实现偏航轴承服役状态评估。结果表明:该模型能够准确跟踪偏航轴承的运行状态,及时捕捉到初始退化时刻,实现偏航轴承服役状态的准确评估。 展开更多
关键词 偏航轴承 复合多尺度符号注意熵 趋势约束自编码器 服役状态评估
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基于前后端联合分析的Java Web漏洞挖掘方法
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作者 邹福泰 姜开达 +2 位作者 占天越 施纬 张亮 《计算机研究与发展》 北大核心 2026年第1期214-226,共13页
精准高效地挖掘Web应用当中存在的安全漏洞具有极高的研究价值。Web漏洞挖掘相关研究大多是针对PHP应用的,无法直接应用于Java Web漏洞挖掘。且现有的Web漏洞挖掘方法难以适应批量高效的需求,即难以在保持静态代码分析的性能下取得动态... 精准高效地挖掘Web应用当中存在的安全漏洞具有极高的研究价值。Web漏洞挖掘相关研究大多是针对PHP应用的,无法直接应用于Java Web漏洞挖掘。且现有的Web漏洞挖掘方法难以适应批量高效的需求,即难以在保持静态代码分析的性能下取得动态分析的精确度。为解决上述问题,提出了一种前后端联合分析的Web漏洞挖掘方法,利用前端解析提取污点源信息来帮助后端分析进行剪枝,提高漏洞覆盖率和检测性能;同时在漏洞挖掘时利用程序的动静态信息进行代码建模,结合数据流分析、污点分析、符号执行以及轻量动态求解技术完成漏洞的挖掘和验证,在引入较少开销前提下带来较大的效果提升。选取了CVE(common vulnerabilities and exposure)漏洞、开源CMS(content management system)以及开源社区应用中共105个Java Web漏洞对所提出的方法进行了实验,证明了各模块具有较好的分析效果,整体具有较强的漏洞挖掘能力。 展开更多
关键词 WEB安全 JAVA 漏洞挖掘 污点分析 符号执行
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虚实共生视角下目的地文旅IP开发模式探索——基于洛阳IP的符号机制研究
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作者 蔡礼彬 鲁懿慧 《四川师范大学学报(社会科学版)》 北大核心 2026年第1期148-157,205,206,共12页
新时代文旅IP化趋势,导致旅游目的地正突破单一地理空间限制,向虚实共生的多维度时空延伸。以洛阳IP为案例,从媒介与场景双维度切入,对文旅IP虚实共生的内在逻辑与演化机制的研究发现:文旅IP实现虚实共生的闭环,需先利用数字媒介建构地... 新时代文旅IP化趋势,导致旅游目的地正突破单一地理空间限制,向虚实共生的多维度时空延伸。以洛阳IP为案例,从媒介与场景双维度切入,对文旅IP虚实共生的内在逻辑与演化机制的研究发现:文旅IP实现虚实共生的闭环,需先利用数字媒介建构地方文化符号与虚拟互动场域,再通过技术与文化赋能重构目的地线下体验场景,形成虚拟与现实的交互共生;洛阳IP的实践模式,既为目的地拓宽消费市场、构建创新体验场景提供了具体开发方向,也为通过跨媒介叙事实现文旅资源的创造性转化提供了可行思路。构建市场-体验的文旅IP开发四维矩阵,可从巩固优化、传播拓展、场景深化和引领变革四个维度,为开发更具可持续性的文旅IP提供关键策略指引。 展开更多
关键词 文旅IP 旅游目的地 虚实共生 符号机制
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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 被引量:2
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作者 张亚辉 张传印 高丽 《眼科学报》 CAS 2021年第12期951-958,共8页
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... 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。 展开更多
关键词 Lea symbols视力表 HOTV视力表 儿童 视力
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水利遗产的中华民族共同体意蕴及其价值实现路径
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作者 李然 任凤 《三峡大学学报(人文社会科学版)》 2026年第1期9-16,116,共9页
中华民族在长期治水实践中留下大量珍贵水利遗产,承载着中华民族大一统的政治智慧、各民族交融的历史记忆与共生发展的文化基因。从政治构建、民族交融、文化符号三个维度可以揭示水利遗产中的铸牢中华民族共同体意识生成机制。在中华... 中华民族在长期治水实践中留下大量珍贵水利遗产,承载着中华民族大一统的政治智慧、各民族交融的历史记忆与共生发展的文化基因。从政治构建、民族交融、文化符号三个维度可以揭示水利遗产中的铸牢中华民族共同体意识生成机制。在中华民族历史上,大型水利工程的兴建整合了地理文化空间,奠定了“大一统”政治基础;各民族共同治水历史故事的传播,形成超越地域和族群的集体记忆;共享的中华文化符号凝聚着中华民族精神和对中华文明的认同。因此,需要系统挖掘水利遗产中的“三交”史,支撑中华民族共同体史料体系建设;提炼中华文化符号,彰显水利遗产时代价值;文旅融合,重构各民族交融的文化空间;践行“以文化人”理念,增强文化认同与自信。通过创造性转化和创新性发展水利遗产资源,助力铸牢中华民族共同体意识有形有效有感。 展开更多
关键词 水利遗产 铸牢中华民族共同体意识 大一统构建 民族交融 中华文化符号
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