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Physics-Informed Neural Networks:Current Progress and Challenges in Computational Solid and Structural Mechanics
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作者 Itthidet Thawon Duy Vo +6 位作者 Tinh QuocBui Kanya Rattanamongkhonkun Chakkapong Chamroon Nakorn Tippayawong Yuttana Mona Ramnarong Wanison Pana Suttakul 《Computer Modeling in Engineering & Sciences》 2026年第2期48-86,共39页
Physics-informed neural networks(PINNs)have emerged as a promising class of scientific machine learning techniques that integrate governing physical laws into neural network training.Their ability to enforce different... Physics-informed neural networks(PINNs)have emerged as a promising class of scientific machine learning techniques that integrate governing physical laws into neural network training.Their ability to enforce differential equations,constitutive relations,and boundary conditions within the loss function provides a physically grounded alternative to traditional data-driven models,particularly for solid and structural mechanics,where data are often limited or noisy.This review offers a comprehensive assessment of recent developments in PINNs,combining bibliometric analysis,theoretical foundations,application-oriented insights,and methodological innovations.A biblio-metric survey indicates a rapid increase in publications on PINNs since 2018,with prominent research clusters focused on numerical methods,structural analysis,and forecasting.Building upon this trend,the review consolidates advance-ments across five principal application domains,including forward structural analysis,inverse modeling and parameter identification,structural and topology optimization,assessment of structural integrity,and manufacturing processes.These applications are propelled by substantial methodological advancements,encompassing rigorous enforcement of boundary conditions,modified loss functions,adaptive training,domain decomposition strategies,multi-fidelity and transfer learning approaches,as well as hybrid finite element–PINN integration.These advances address recurring challenges in solid mechanics,such as high-order governing equations,material heterogeneity,complex geometries,localized phenomena,and limited experimental data.Despite remaining challenges in computational cost,scalability,and experimental validation,PINNs are increasingly evolving into specialized,physics-aware tools for practical solid and structural mechanics applications. 展开更多
关键词 Artificial Intelligence physics-informed neural networks computational mechanics bibliometric analysis solid mechanics structural mechanics
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Learning by Comparing:Effects of Cues Focusing on Chinese-Speaking Learners’Acquisition of English Articles
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作者 Mei Yang Qiying Guo Xiaomeng Yan 《Chinese Journal of Applied Linguistics》 2026年第1期57-75,160,共20页
This study examines whether and how cues focusing enhances Chinese-speaking English learners’engagement in comparison,thereby facilitating their acquisition of English articles within xu-based comparative continuatio... This study examines whether and how cues focusing enhances Chinese-speaking English learners’engagement in comparison,thereby facilitating their acquisition of English articles within xu-based comparative continuation writing tasks.Fifty English majors from a Chinese university were randomly assigned to three groups and each group was required to complete a comparative continuation task with one of three conditions:paired cues(cues presented in pairs),randomized cues(cues presented in random order),or implicit cues(no explicit cues provided).All participants undertook pretests,posttests,and delayed tests on English article knowledge,and ten of them volunteered to take follow-up interviews.The results indicate that:1)paired cues were more effective than randomized or implicit cues in promoting the acquisition of English articles;and 2)learners in the paired cues condition produced more target-like article usage in their continuation writings compared to those in the other two conditions.The effectiveness of paired cues is attributed to an enhanced contrast effect,which prompts learners to identify similarities and differences between cues within each pair,relates cue explanations and examples with actual article usage in the reading text,and reflects upon and compares their own article productions against those in the provided reading text.The study concludes that the process of learning through continuation is fundamentally supported by learners’capacity for comparison,reinforcing its role as a core element of xu-competence. 展开更多
关键词 comparison cues focusing acquisition of english articles xu-argument
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Simulation of the Specific Contributions of Molecular Weight,Orientation Degree,and Crystallinity to the Tensile Mechanics of Polyethylene Fibers
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作者 Tian-Hao Yang Jing-Han Wu +4 位作者 Ming-Ming Ding Wen Zhai Ke Wang Qiang Fu Yang Liu 《Chinese Journal of Polymer Science》 2026年第2期560-575,I0018,共17页
UHMWPE fibers exhibit impressive modulus and strength,but they have not reached their theoretical limits.Researchers focus on molecular weight,orientation,and crystallinity of UHMWPE,yet their contributions to mechani... UHMWPE fibers exhibit impressive modulus and strength,but they have not reached their theoretical limits.Researchers focus on molecular weight,orientation,and crystallinity of UHMWPE,yet their contributions to mechanical properties are unclear.Molecular dynamics simulations are valuable but often limited by computational constraints.Our aim is to simulate higher molecular weights to better represent real UHMWPE fibers.We used Packmol and Polyply methodologies to construct PE systems,with Polyply reproducing more reasonable properties of UHMWPE fibers.Additionally,tensile simulations showed that orientation and crystallinity greatly impact Young's modulus more than molecular weight.Energy decomposition indicated that higher molecular weights lead to covalent bonds that can withstand more energy during stretching,thus increasing breaking strength.Combining simulations with machine learning,we found that orientation has the most significant impact on Young's modulus,contributing 60%,and molecular weight plays the most crucial role in determining the breaking strength,accounting for 65%.This study provides a theoretical basis and guidelines for enhancing UHMWPE's modulus and strength. 展开更多
关键词 Molecular dynamics simulation Polyethylene fiber Mechanical properties
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Syntactic and Socially Responsible Machine Translation:A POS and DEP Integrated Framework for English–Tamil
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作者 Rama Sugavanam Mythili Ramu 《Computers, Materials & Continua》 2026年第4期2302-2326,共25页
When performing English-to-Tamil Neural Machine Translation(NMT),end users face several challenges due to Tamil's rich morphology,free word order,and limited annotated corpora.Although available transformer-based ... When performing English-to-Tamil Neural Machine Translation(NMT),end users face several challenges due to Tamil's rich morphology,free word order,and limited annotated corpora.Although available transformer-based models offer strong baselines,they compromise syntactic awareness and the detection and man-agement of offensive content in cluttered,noisy,and informal text.In this paper,we present POSDEP-Offense-Trans,a multi-task NMT framework that combines Part-of-Speech(POS)and Dependency Parsing(DEP)methods with a robust offensive language classification module.Our architecture enriches the Transformer encoder with syntax-aware embeddings and provides syntax-guided attention mechanisms.The architecture incorporates a structure-aware contrastive loss that reinforces syntactic consistency and deploys auxiliary classification heads for POS tagging,dependency parsing,and multi-class offensive detection.The classifier for offensive words operates at both sentence and token levels and obtains guidance from syntactic features and formal finite automata rules that model offensive language structures-hate speech,profanity,sarcasm,and threats.Using this architecture,we construct a syntactically enriched,socially annotated corpus.Experimental results show improvements in translation quality,with a BLEU score of 33.5,UAS/LAS parsing accuracies of 92.4%and 90%,and a 4.5%Fl-score gain in offensive content detection compared with baseline POS+DEP+Offense models.Also,the proposed model achieved 92.3%in offensive content neutralization,as confirmed by ablation studies.This comprehensive English-Tamil NMT model that unifies syntactic modelling and ethical filtering-laying the groundwork for applications in social media moderation,hate speech mitigation,and policy-compliant multilingual content generation. 展开更多
关键词 POS-awareNMT dependency parsing syntax-guided attention multi-task learning o.ensive language detection o.ensive language neutralization english–Tamil neural machine translation
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High-performance 316L stainless steel composites:tailoring microstructure and mechanics with WC reinforcement via selective laser melting
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作者 Hai-Bo Luo Mao Yang +4 位作者 Bin Han Zhi-Shuang Hao Bin-Chao Li Pei-Yuan Zheng Qi Zhang 《Journal of Iron and Steel Research International》 2026年第1期24-39,共16页
Incorporating ceramic particles into metal matrices is a proven strategy for boosting mechanical properties and wear resistance.The reinforcement potential of tungsten carbide(WC)particles in 316L stainless steel is r... Incorporating ceramic particles into metal matrices is a proven strategy for boosting mechanical properties and wear resistance.The reinforcement potential of tungsten carbide(WC)particles in 316L stainless steel is revealed,utilizing selective laser melting(SLM)to fabricate composites with 5 and 10 vol.%WC.The WC incorporation markedly alters the composite’s microstructure and mechanical attributes.Notably,5 vol.%WC-316L composite exhibits a refined submicron cellular structure,averaging 0.67μm in grain size.Elemental diffusion at WC-316L interface formed a 0.8μm gradient transition layer enriched with M_(2)C carbides(Fe,Cr,W),ensuring robust metallurgical bonding.Compared with unreinforced 316L,5%WC composite exhibits a 70%increase in tensile strength,reaching 1012.6 MPa,and a 25.3%rise in hardness,while maintaining acceptable ductility.10%WC composite achieves a 70.8%hardness enhancement,albeit with reduced elongation.Friction coefficient is reduced by up to 17.3%,and the wear mechanism shifts from adhesive to abrasive,significantly improving wear resistance. 展开更多
关键词 WC-reinforced 316L stainless steel composite Selective laser melting Particle reinforcement Microstructure refinement Enhanced mechanical property Enhanced tribological property
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李四光对地质力学(Geomechanics)的开创性贡献——纪念李四光诞辰135周年 被引量:1
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作者 童亨茂 《地质力学学报》 北大核心 2025年第1期1-7,共7页
中国学术界熟知李四光创立了地质力学,但学术界对该“地质力学”的理解还存差异,部分学者对李四光创立Geomechanics(地质力学)还存在疑问,导致对李四光学术贡献的理解存在偏颇,对李四光创立的“地质力学”和国际上使用的“geomechanics... 中国学术界熟知李四光创立了地质力学,但学术界对该“地质力学”的理解还存差异,部分学者对李四光创立Geomechanics(地质力学)还存在疑问,导致对李四光学术贡献的理解存在偏颇,对李四光创立的“地质力学”和国际上使用的“geomechanics”属于同一术语还明显存在争议,这或多或少地影响地质力学(Geomechanics)术语的使用和该学科的发展。笔者在长期从事地质力学研究实践的基础上,通过对李四光地质力学著作(尤其是李四光1945年版的《地质力学之基础与方法》一书)的系统研读和分析,结合深入的调研分析,确认李四光不仅创立了地质力学(Geomechanics),而且对地质力学及构造变形力学分析有一系列开创性贡献,如提出主应力平面和主应力的概念;把摩尔圆引入构造变形力学分析;建立了广义胡克定律的解析表达式等。在此基础上,简要评述了李四光创立的地质力学,并简要回顾了地质力学的发展历史并展望其发展前景。该文在李四光诞辰135周年之际完成,以此纪念其对地质力学的开创性贡献。 展开更多
关键词 李四光 地质力学 构造变形力学分析 构造体系
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APPLIED MATHEMATICS AND MECHANICS(ENGLISH EDITION) 2012 TOTAL CONTENTS
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《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2012年第12期I0001-I0008,共8页
关键词 APPLIED MATHEMATICS AND mechanics english EDITION MHD
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APPLIED MATHEMATICS AND MECHANICS (ENGLISH EDITION) 2011 TOTAL CONTENTS
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《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2011年第12期I0001-I0008,共8页
关键词 PING APPLIED MATHEMATICS AND mechanics english EDITION
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APPLIED MATHEMATICS AND MECHANICS(ENGLISH EDITION) 2019 TOTAL CONTENTS
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《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2019年第12期I0001-I0010,共10页
关键词 APPLIED MATHEMATICS AND mechanics english EDITION TOTAL CONTENTS
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APPLIED MATHEMATICS AND MECHANICS (ENGLISH EDITION)
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《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2009年第12期I0001-I0016,共16页
All authors of papers published in this volume are listed alphabetically according to the last name of each author. Full titles are included in each first author's entry.
关键词 PING Vol.30 AUTHOR INDEX APPLIED MATHEMATICS AND mechanics english EDITION mode
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APPLIED MATHEMATICS AND MECHANICS (ENGLISH EDITION)
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《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2010年第12期I0001-I0016,共16页
All authors of papers published in this volume are listed alphabetically according to the last name of each author. Full titles are included in each first author's entry.
关键词 2010 APPLIED MATHEMATICS AND mechanics english EDITION Vol.31 AUTHOR INDEX
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Research on the Reform Path of College English Teaching in the Era of Artificial Intelligence 被引量:1
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作者 Xin He 《Journal of Contemporary Educational Research》 2025年第1期135-139,共5页
The development of a new round of artificial intelligence(AI)science and technology provided good technical support and condition guarantee for college English teaching,but it also brought new challenges.It is necessa... The development of a new round of artificial intelligence(AI)science and technology provided good technical support and condition guarantee for college English teaching,but it also brought new challenges.It is necessary and inevitable for English teaching to experience reform and innovation.China’s AI digital teaching transformation is in the exploratory stage,and AI teaching mode has become the focus of future teaching development.Herein we propose a research method of integrating AI tools in college English teaching to adapt to the personalized learning of the new generation of college students,make the teaching process efficiently integrate the tide of the development of AI,promote the development of education evaluation system more accurately,and provide theoretical and data references for college English teaching reform. 展开更多
关键词 College english Artificial intelligence english teaching
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APPLIED MATHEMATICS AND MECHANICS (English Edition)
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《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2006年第11期F0003-F0003,共1页
关键词 APPLIED MATHEMATICS AND mechanics 2006 Vol.27 INDEX 袁益让 陈予恕 杨静平 刘宇 NG 李永 陈洪凯 杨桂
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Cultivation of Students’Critical Thinking Ability in College English Audio-Visual and Oral Teaching 被引量:1
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作者 Hui Zhang 《Journal of Contemporary Educational Research》 2025年第6期36-41,共6页
With the increasingly prominent trend of globalization,English,as the common language of international communication,plays an increasingly important role in university education.As a key link in English teaching,the c... With the increasingly prominent trend of globalization,English,as the common language of international communication,plays an increasingly important role in university education.As a key link in English teaching,the college English audio-visual oral course not only imparts language knowledge and skills,but also shoulders the important task of cultivating students’critical thinking.As one of the essential core qualities of modern talents,critical thinking ability plays an irreplaceable role in students’in-depth understanding of English knowledge,improving intercultural communication ability and cultivating innovative thinking.This paper expounds the significance of cultivating students’critical thinking ability in college English audio-visual and oral teaching,and puts forward a series of innovative teaching strategies to cultivate students’critical thinking ability combined with practical teaching experience and cutting-edge education theory,in order to provide new ideas and practical guidance for the improvement of college English teaching quality and the development of students’comprehensive quality. 展开更多
关键词 Critical thinking ability College english Audio-visual and oral teaching
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A Study on Curriculum-based Political and Moral Education in Public English Courses at Vocational Schools 被引量:1
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作者 Jia Zhang Hongyan Leng 《Journal of Contemporary Educational Research》 2025年第8期66-71,共6页
Public English carries significant moral education responsibilities as a core general education course in vocational schools.By organically integrating English teaching content with moral education,it achieves the uni... Public English carries significant moral education responsibilities as a core general education course in vocational schools.By organically integrating English teaching content with moral education,it achieves the unity of knowledge imparting and value guidance.The course should fully leverage its educational function by strengthening humanistic care and psychological counseling,guiding students to develop self-awareness,understand their responsibilities,and establish correct worldviews,outlooks on life,and values,ultimately fostering well-rounded development. 展开更多
关键词 Vocational school english Teaching Curriculum-based Political and Moral Education
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Developing a large language model for oil- and gas-related rock mechanics: Progress and challenges 被引量:1
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作者 Botao Lin Yan Jin +3 位作者 Qianwen Cao Han Meng Huiwen Pang Shiming Wei 《Natural Gas Industry B》 2025年第2期110-122,共13页
In recent years,large language models(LLMs)have demonstrated immense potential in practical applications to enhance work efficiency and decision-making capabilities.However,specialized LLMs in the oil and gas engineer... In recent years,large language models(LLMs)have demonstrated immense potential in practical applications to enhance work efficiency and decision-making capabilities.However,specialized LLMs in the oil and gas engineering area are rarely developed.To aid in exploring and developing deep and ultra-deep unconventional reservoirs,there is a call for a personalized LLM on oil-and gas-related rock mechanics,which may handle complex professional data and make intelligent predictions and decisions.To that end,herein,we overview general and industry-specific LLMs.Then,a systematic workflow is proposed for building this domain-specific LLM for oil and gas engineering,including data collection and processing,model construction and training,model validation,and implementation in the specific domain.Moreover,three application scenarios are investigated:knowledge extraction from textural resources,field operation with multidisciplinary integration,and intelligent decision assistance.Finally,several challenges in developing this domain-specific LLM are highlighted.Our key findings are that geological surveys,laboratory experiments,field tests,and numerical simulations form the four original sources of rock mechanics data.Those data must flow through collection,storage,processing,and governance before being fed into LLM training.This domain-specific LLM can be trained by fine-tuning a general open-source LLM with professional data and constraints such as rock mechanics datasets and principles.The LLM can then follow the commonly used training and validation processes before being implemented in the oil and gas field.However,there are three primary challenges in building this domain-specific LLM:data standardization,data security and access,and striking a compromise between physics and data when building the model structure.Some of these challenges are administrative rather than technical,and overcoming those requires close collaboration between the different interested parties and various professional practitioners. 展开更多
关键词 Large language model Oil and gas Rock mechanics Data processing Artificial intelligence
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Some Advice About Learning English
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作者 蔡冰 张超 《中学生英语》 2025年第11期6-6,共1页
Dear Xu Shengli,You asked me about learning English.Now I'd like to tell you how you should learn English.First,you should often read English aloud and try your best to learn important something1 by heart.So you c... Dear Xu Shengli,You asked me about learning English.Now I'd like to tell you how you should learn English.First,you should often read English aloud and try your best to learn important something1 by heart.So you can remember them easy2 and form a good habit of thinking in English.Second,you should listen a lot and communicate with others in English.With3 this way,both your listening ability and your spoken English will be improved.Third,you should keep a diary in English every day.I hope that the advice will be useful to you. 展开更多
关键词 english read english aloud spoken english memorization HABIT LEARNING learn englishfirstyou thinking english
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World Englishes Awareness:Insights From International Chinese Graduate Students in Thailand
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作者 Pimyupa W.Praphan Eric A.Ambele 《Chinese Journal of Applied Linguistics》 2025年第4期503-520,638,共19页
English is one of the world’s most widely studied and spoken languages now.In China,the local variety of English,referred to in this study as China English from the World Englishes perspective,has been widely debated... English is one of the world’s most widely studied and spoken languages now.In China,the local variety of English,referred to in this study as China English from the World Englishes perspective,has been widely debated regarding its recognition as an English variety among Chinese speakers.This study examines the perceptions of Chinese graduate students majoring in English in Thailand toward World Englishes,China English,and their tolerance of China English in the Chinese EFL classroom after completing a 15-week World Englishes course.Data were collected through semi-structured interviews with seven students and analyzed using qualitative content analysis.The findings indicated that while students acknowledged the legitimacy of World Englishes and China English in various contexts,they resisted its use in English language classrooms in China.Instead,they preferred conventional pedagogical approaches that prioritize native English varieties,particularly British and American English.These findings suggest that language educators in China should integrate diverse English varieties into the classroom by incorporating authentic learning materials and designing relevant learning activities.Such an approach would not only expose students to English diversity but also enhance their intercultural competence and global citizenship. 展开更多
关键词 World englishes China english Chinese students PERCEPTIONS Thailand
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English Language Teaching Goals:Embracing Global Varieties for Effective Communication
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作者 Qiuyue Lin 《Journal of Contemporary Educational Research》 2025年第5期320-325,共6页
In the contemporary era of globalization,English has evolved into a multifaceted tool for intercultural communication,transcending its traditional boundaries.This paper explores the shifting paradigms in English langu... In the contemporary era of globalization,English has evolved into a multifaceted tool for intercultural communication,transcending its traditional boundaries.This paper explores the shifting paradigms in English language teaching(ELT),moving away from the pursuit of native-like competence towards a more pragmatic focus on communicative proficiency in English as a Lingua Franca(ELF).Through an examination of global English varieties and ELT goals,the paper argues for a pedagogical approach that embraces linguistic diversity and prioritizes effective communication over conformity to native norms.Drawing on insights from ELF research and communicative language teaching methodologies,it advocates for empowering learners with the skills to navigate diverse linguistic contexts and engage in meaningful interactions with speakers from diverse cultural backgrounds. 展开更多
关键词 english as a Lingua Franca(ELF) Global englishes english language teaching Intercultural communication
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