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New insights into the interactions between two‐dimensional ice and two‐dimensional materials

Droplet 2023年第4期2卷 103-111页

作者： Quoc Huy Thi Jiong Zhao thuc hue ly Department of Chemistry and Center of Super‐Diamond&Advanced Films(COSDAF) City University of Hong KongHong KongChina Shenzhen Research Institute City University of Hong KongShenzhenChina Department of Applied Physics The Hong Kong Polytechnic UniversityHong KongChina Shenzhen Research Institute The Hong Kong Polytechnic UniversityShenzhenChina Department of Chemistry and State Key Laboratory of Marine Pollution City University of Hong KongHong KongChina

Water is one of the most essential substances for life on Earth and plays a vital role in both natural and technological ***,there has been growing interest in studying the behavior of water molecules in confined spaces,particularly in low‐dimensional materials and *** of whether it is in the form of gas,liquid,or solid,water can interact and form interfaces with many low‐dimensional *** the current controversial understanding of two‐dimensional(2D)ice and the increasing interplay between water/ice and 2D materials such as graphene and transition‐metal dichalcogenides,we provide a brief overview of recent progresses on the interfaces of 2D ice and 2D van der Waals layered *** review highlights their potential contributions to the breakthroughs in tribology,membrane technology,nanofluidic,and nanodevice *** particular interest is the recent discovery of ultrahigh lubricity between 2D ice and 2D layered materials,as well as the ability to modulate the surface adhesion between *** findings have the potential to enable new technological advances in both electronics and various ***,this rapidly evolving field presents its own challenges,and we also discuss future directions for exploiting the interactions between 2D ice and 2D layered materials.

关键词： materials layered insight

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Precision Chemistry in Two-Dimensional Materials: Adding, Removing, and Replacing the Atoms at Will

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Accounts of Materials Research 2021年第10期2卷 863-868页

作者： Tiefeng Yang Lain-Jong Li Jiong Zhao thuc hue ly Department of Chemistry and Center of Super-Diamond and Advanced Films(COSDAF) City University of Hong KongKowloonHong Kong 518057China Department of Mechanical Engineering University of Hong KongHong KongHong Kong 518057China Department of Applied Physics The Hong Kong Polytechnic UniversityKowloonHong Kong 518057China

*** Two-dimensional(2D)materials are intriguing for wide applications such as electronics,optics,energy,catalysis,and so forth,which has rapidly fueled the development of nanoscience and technology in recent *** of their reduced dimensionality,large specific surface area,and atomic thickness,various novel behaviors and properties emerged,though the synthesis,preparation,and modification of 2D materials remain challenging on the atomic scale.

关键词： optics preparation dimensionality

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Numerical investigation of the influence of casting techniques on fiber orientation distribution in ECC

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Frontiers of Structural and Civil Engineering 2022年第11期16卷 1424-1435页

作者： Chung Nguyen VAN Hai TRAN THANH thuc Nhu NGUYEN Jianchun LI Faculty of Civil Engineering Ho Chi Minh City University of Technology and EducationHo Chi Minh 721400Vietnam School of Civil and Environmental Engineering University of Technology SydneySydneyNSW 2007Australia School of Civil Engineering Hue Industrial CollegeHue 49120Vietnam

Engineered cementitious composites(ECC),also known as bendable concrete,were developed based on engineering the interactions between fibers and cementitious *** orientation of fibers,in this regard,is one of the major factors influencing the ductile behavior of this *** this study,fiber orientation distributions in ECC beams influenced by different casting techniques are evaluated via numerical modeling of the casting *** casting directions and two casting positions of the funnel outlet with beam specimens are modeled using a particle-based smoothed particle hydrodynamics(SPH)*** this SPH approach,fresh mortar and fiber are discretized by separated mortar and fiber particles,which smoothly interact in the computational domain of *** movement of fiber particles is monitored during the casting ***,the fiber orientations at different sections of specimens are determined after the fresh ECC stops flowing in the *** simulation results show a significant impact of the casting direction on fiber orientation distributions along the longitudinal wall of beams,which eventually influence the flexural strength of *** addition,casting positions show negligible influences on the orientation distribution of fibers in the short ECC beam,except under the pouring position.

关键词： ECC fiber orientation distribution casting direction casting position

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汉越拒绝言语行为及其影响因素对比研究

汉越拒绝言语行为及其影响因素对比研究

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作者：刘淑慧（Luu thuc hue）大连外国语大学

学位级别：硕士

拒绝是日常生活的交际中常接触到的言语行为,也是最容易使交际失败的言语行为之一。若拒绝言语行为实施不好,往往会影响到交际双方的关系。因此,拒绝者会选用各种各样的拒绝策略来降低请求者的面子威胁程度。中越两国人民由于思维方式... 详细信息

拒绝是日常生活的交际中常接触到的言语行为,也是最容易使交际失败的言语行为之一。若拒绝言语行为实施不好,往往会影响到交际双方的关系。因此,拒绝者会选用各种各样的拒绝策略来降低请求者的面子威胁程度。中越两国人民由于思维方式、文化背景不同,采用的拒绝方式和拒绝策略也有所不同。所以,中国人和越南人交际时,很容易由于文化差异而误用不正确的拒绝策略,引起双方的误解和矛盾。本文运用言语行为理论、礼貌原则、合作原则、面子理论作为理论框架,并结合前人的研究成果。以中越影视剧本所收集到的语料为研究对象,采用总结归纳法、对比法、数据分析法,对汉越拒绝言语行为的定义、分类、特征进行研究。通过影视剧本语料归纳出汉越拒绝语的语用策略,并通过语料分析影响拒绝策略的因素,总结两国人民拒绝言语行为的共性与特性。以希望对中越的日常交际言语的研究做出一点贡献。研究发现,常用的汉越拒绝策略包括1种直接拒绝策略和17种间接拒绝策略。中国和越南都倾向于使用间接拒绝策略,主要集中在“说明理由策略”、“找借口策略”、“批评教育策略”、“反问策略”四类。汉语和越南语的间接策略除了能表示含蓄委婉地实施拒绝,维护对方面子以外。间接拒绝中的反问策略、批评教育策略、警告策略等这些策略语气比较强烈,可能威胁到对方的面子,违背了礼貌原则。本研究还从社会地位、社会距离及性别差异等三方面进一步探讨社会因素对汉越拒绝言语行为使用的影响。研究发现,中国和越南在社会地位的影响下,请求者的地位越高,拒绝者越礼貌。而在社会距离的影响下,距离越远,拒绝者采用的拒绝策略则越委婉、礼貌。但社会距离对中国人的影响比越南人影响更显著。性别因素的影响主要体现在中国男性和越南男性都倾向于使用“直接拒绝策略”和“说明理由策略”,而中国女性和越南女性都倾向于使用“直接拒绝策略”和“找借口策略”。

关键词：汉越对比拒绝言语行为拒绝策略影响因素

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