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丙烯酸酯/液晶/POSS复合体系光聚合过程中的体积收缩

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高分子学报 2014年第10期24卷 1408-1412页

作者：倪名立彭海炎毕曙光周兴平解孝林华中科技大学化学与化工学院大型电池关键材料与系统教育部重点实验室华中科技大学国家防伪工程技术研究中心武汉430074

采用光-流变学方法研究了丙烯酸酯/液晶复合体系的光聚合凝胶时间及体积收缩率,并与密度法测量的体积收缩率进行了对比.结果表明,该复合体系的凝胶时间小于10 s,光-流变学方法可以在线测量丙烯酸酯单体/液晶复合体系的光聚合体积收缩.以... 详细信息

采用光-流变学方法研究了丙烯酸酯/液晶复合体系的光聚合凝胶时间及体积收缩率,并与密度法测量的体积收缩率进行了对比.结果表明,该复合体系的凝胶时间小于10 s,光-流变学方法可以在线测量丙烯酸酯单体/液晶复合体系的光聚合体积收缩.以2种不同结构的多面体齐聚倍半硅氧烷(POSS)掺杂丙烯酸酯/液晶复合体系,八甲基丙烯酰氧基倍半硅氧烷(MA-POSS)使丙烯酸酯/液晶复合体系的双键转化率略有降低,掺杂10 wt%MA-POSS使体系的光聚合体积收缩率仅降低了12%;而甲基丙烯酰氧基七异丁基倍半硅氧烷(MI-POSS)对体系双键转化率的影响较小,显著降低了体系的光聚合体积收缩,掺杂10 wt%MI-POSS使体系的光聚合体积收缩率降低29%.

关键词：丙烯酸酯/液晶复合体系多面体齐聚倍半硅氧烷体积收缩光聚合光-流变学

含Gemini表面活性剂的PVA分散液晶的微结构与性能

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高分子学报 2012年第6期22卷 628-632页

作者：毕曙光彭海炎廖永贵杨亚江 Bogumil Brycki 解孝林华中科技大学化学与化工学院、材料化学与服役失效湖北省重点实验室武汉430074 波兹南密茨凯维奇大学化学系波兹兰波兰华中科技大学国家防伪工程技术研究中心武汉430074

采用N,N'-二(十二烷基)-N,N,N',N',N″-五甲基-1,4,7-三氮杂双碘化氨为Gemini表面活性剂,液晶为4-正戊基-4'-氰基联苯(5CB),通过微胶囊法制备了聚乙烯醇(PVA)分散液晶薄膜,着重研究Gemini表面活性剂对PVA分散液晶薄膜的微结构、电光特... 详细信息

采用N,N'-二(十二烷基)-N,N,N',N',N″-五甲基-1,4,7-三氮杂双碘化氨为Gemini表面活性剂,液晶为4-正戊基-4'-氰基联苯(5CB),通过微胶囊法制备了聚乙烯醇(PVA)分散液晶薄膜,着重研究Gemini表面活性剂对PVA分散液晶薄膜的微结构、电光特性的影响.结果表明,加入Gemini表面活性剂仅略微增加了PVA与5CB液晶的相容性,PVA分散液晶仍保持较高的相分离程度,但是Gemini表面活性剂使液晶微滴尺寸明显变小,液晶相均匀分散地于PVA基体中,液晶指向矢构型由两极型变化为径向型,PVA分散液晶薄膜的对比度和响应速度明显提高,同时保持较低的驱动电压.

关键词：聚合物分散液晶 Gemini表面活性剂微结构电光特性

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面向VR/AR应用的全息高分子材料

高分子学报 2023年第4期54卷 418-431页

作者：倪名立杨松周兴平彭海炎孙其民解孝林南昌虚拟现实研究院股份有限公司国家虚拟现实创新中心华中科技大学化学与化工学院材料成形与模具技术国家重点实验室

虚拟现实(VR)/增强现实(AR)是新兴的人-机交互显示技术,其光学元件的集成化、轻量化与定制化是先进VR/AR技术的必然要求,全息高分子材料是关键.本文介绍了VR/AR近眼显示系统及重要参数,回顾了全息高分子材料在VR/AR显示中的重要应用,讨... 详细信息

虚拟现实(VR)/增强现实(AR)是新兴的人-机交互显示技术,其光学元件的集成化、轻量化与定制化是先进VR/AR技术的必然要求,全息高分子材料是关键.本文介绍了VR/AR近眼显示系统及重要参数,回顾了全息高分子材料在VR/AR显示中的重要应用,讨论了全息高分子材料的性能与VR/AR显示效果的关系,重点介绍了全息高分子材料的折射率调制度、光散射损失和体积收缩率的调控策略,最后指出了现有全息高分子材料在先进VR/AR应用中的不足,并展望了未来发展方向.

关键词：虚拟现实增强现实全息光学元件全息高分子材料

Advances in Graphene‑Based Electrode for Triboelectric Nanogenerator

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Nano-Micro Letters 2025年第1期17卷 378-403页

作者： Bin xie Yuanhui Guo Yun Chen Hao Zhang Jiawei xiao Maoxiang Hou Huilong Liu Li Ma Xin Chen Chingping Wong State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearable electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexible and efficient nanopower generation *** nanogenerator(TENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of TENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from problems such as durability,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in TENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of TENGs based on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-based TENGs in various scenarios as well as the enhancement of graphene electrodes for TENG performance are *** addition,the future development of graphene electrode-based TENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-based TENGs.

关键词： Triboelectric nanogenerator Precision processing Graphene electrode Self-powered sensor

完全腹腔镜脾切除加贲门周围血管离断术治疗肝硬化门静脉高压症效果分析

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中国当代医药 2016年第36期23卷 33-35,41页

作者：邓小红周林肖修林谢元财江西省赣州市人民医院肝胆外科江西赣州341000

目的评价完全腹腔镜脾切除加贲门周围血管离断术治疗肝硬化门静脉高压症患者的临床效果。方法选择2011年10月~2015年9月我院收治的66例确诊为肝硬化门静脉高压症并上消化道出血患者作为研究对象,根据治疗方法的不同分观察组（n=32）... 详细信息

目的评价完全腹腔镜脾切除加贲门周围血管离断术治疗肝硬化门静脉高压症患者的临床效果。方法选择2011年10月~2015年9月我院收治的66例确诊为肝硬化门静脉高压症并上消化道出血患者作为研究对象,根据治疗方法的不同分观察组（n=32）和对照组（n=34）,对照组患者采用传统脾切除联合贲门周围血管离断术,观察组观察采用完全腹腔镜脾切除加贲门周围血管离断术,比较两种手术方式的临床疗效。结果观察组术中出血量、术后引流量、总住院费用、并发症发生率与对照组比较,差异无统计学意义（P〉0.05）;观察组术后肛门排气时间、术后住院时间均明显短于对照组（P〈0.05）;观察组手术时间明显比对照组长,差异有统计学意义（P〈0.01）。观察组切口长度、禁食时间、术后镇痛次数均明显少于对照组,差异有统计学意义（P〈0.05）。结论完全腹腔镜脾切除加贲门周围血管离断术治疗肝硬化门静脉高压症是安全可行的手术方式。

关键词：脾切除贲门周围血管离断术肝硬化门静脉高压症传统开腹脾切除腹腔镜手术

基于AutoCAD2000及ObjectARX的蜗杆传动CAD系统开发

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邵阳高等专科学校学报 2001年第4期14卷 245-247页

作者：赵小林谢明邵阳高等专科学校机械工程系，湖南邵阳422004

介绍了基于AutoCAD2000平台，在Visual Basic 6.0开发环境中，采用面向对象技术的设计方法，开发的运行于Windows 2000操作系统的蜗杆传动CAD系统一些技术与方法。

关键词： AutoCAD2000 ObjectARX 蜗杆传动 CAD系统

Research on the Novel Double-Layer Multi-cavity Filter

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Chinese Journal of Electronics 2019年第4期28卷 878-883页

作者： ZENG Liuxing lin Fumin xiao Yujie xie Zhenxiong Guangdong University of Technology

A novel structure cavity filter, crosscoupled multi-cavity filter with double-layer structure is proposed. The transmission zero of cross coupling is analyzed qualitatively and quantitatively, while some of the design experience of simulation modeling are summed up and the magnetic coupling and electric coupling of synchronously tuned coupling resonators with double-layer structure are studied. Simulation and experimental results show that the cross-coupled multi-cavity filter with doublelayer structure not only can meet the high selectivity requirements, but also save space, which is conducive to miniaturization design. The feasibility, practicability and superior performance of the double-layer multi-cavity filter are fully verified by the experimental samples and the measurement results of the six-pole double-layer base station filter processed by the design model.

关键词： Cavity filter Double-layer multi-cavity filter Base station filter Double-layer cross-coupling filter

Kicking down the ladder： adding cleavable features to genetically encoded photocrosslinkers

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Science China Chemistry 2017年第2期60卷 167-169页

作者： Zhi lin xiao xie Peng R. Chen Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Synthetic and Functional Biomolecules Center Peking University Beijing 100871 China peking-Tsinghua Center for Life Sciences Beijing 100871 China

Protein-protein interactions(PPIs)play vital roles in biological ***,the discovery of transient and biologically relevant PPIs remain a formidable challenge using conventional strategies such as co-immunoprecipitation(CoIP),yeast two hybrids(Y2H)and Forster resonance energy transfer(FRET)[1].Genetically encoded photocrosslinkers have recently emerged as a powerful approach for probing intracellular PPIs with the capability for in situ studies,low perturbation to cells as well as the wide *** facile strategy also demonstrated an advantage of high spatiotemporal resolution,which offers a robust capture strategy for the discovery of transient and/or weak PPIs with lowered false-positive backgrounds[2].

关键词： Chemistry Synthesis (chemical)

Theoretical Study on the Dehydrogenation Reaction of H_2S by VS^+ (~3Σ^-)

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Chinese Journal of Structural Chemistry 2005年第10期24卷 1111-1116页

作者： GAO Shu-lin LIU Zheng-Mei xie xiao-Guang Department of Chemistry Yunnan University Kunming 650091 China School of Physics and Chemistry Guizhou Normal University Guiyang 550001 China

The dehydrogenation reaction of H2S by the ^3Σ^- ground state of VS^＋： VS^＋＋ H2S → VS2^＋＋ H2 has been studied by using Density Functional Theory （DPT） at the B3LYP/DZVP level. It is found that the reaction proceeds along two possible pathways （A and B） yielding two isomer dehydrogenation products VS2^＋-1 （^3B2） and VS2^＋-2 （^3A1）, respectively. For both pathways, the reaction has a two-step-reaction mechanism that involves the migration of two hydrogen atoms from S2 to V^＋, respectively. The migration of the second hydrogen via TS3 and that of the first via TS4 are the rate-determining steps for pathways A and B, respectively. The activation energy is 17.4 kcal/mol for pathway A and 22.8 kcal/mol for pathway B relative to the reactants. The calculated reaction heat of 9.9 kcal/mol indicates the endothermicity of pathway A and that of -11.9 kcal/mol suggests the exothermicity of pathway B.

关键词： density functional theory cationic transition metal sulfide,dehydrogenation reaction reaction mechanism