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Two-dimensional mesoporous materials:From fragile coatings to flexible membranes

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Chinese Chemical Letters 2013年第2期24卷 89-92页

作者： zheng-long yang Jiao-Li Li Cheng-Liang Zhang Yun-Feng Lu Zhen-Zhong yang School of Chemistry and Materials Science Ludong University lnstitute of Chemistry Chinese Academy of Sciences Institute of Chemistry Chinese Academy of Sciences Department of Chemical and Biomolecular Engineering.University of California at Los Angeles Los AngelesCA 90095USA

Received 30 November 2012 Received in revised form 24 December 2012 Accepted 26 December 2012 Available online 29 January 2013

关键词： Mesoporous materialsTwo-dimensional materialsCoatingsMembranes

Solvothermal synthesis of PbTe/SnTe hybrid nanocrystals

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Chinese Chemical Letters 2014年第6期25卷 849-853页

作者： Wei Jiang zheng-long yang Ding Weng Jun-Wei Wang Yun-Feng Lu Min-Juan Zhang Zhen-Zhong yang School of Chemistry and Materials Science Ludong University Department of Chemical and Biomolecular Engineering University of California at Los Angeles Materials Research Department Toyota Motor Engineering and Manufacturing North AmericaInc.1555 Woodridge AvenueAnn ArborMI 48105USA Institute of Chemistry Chinese Academy of Sciences

PbTe/SnTe hybrid nanocrystals with designed shape, chemical composition and narrow size distribution were synthesized by an efficient solvothermal approach. This approach enables mass and economical synthesis of PbTe-based nanocrystals. The organic ligands were completely removed by pretreatment with a super-hydride solution, making it possible to fabricate fully dense and robust thermoelectric devices with increased electrical conductivity.

关键词： Lead telluride Tin telluride Hybrid nanocrystal Solvothermal synthesis

High Hydrostatic Pressure Exacerbates Bladder Fibrosis through Activating Piezo1

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Current Medical Science 2024年第4期44卷 718-725页

作者： Bo-lang DENG Dong-xu LIN Zhi-peng LI Kang LI Peng-yu WEI Chang-cheng LUO Meng-yang ZHANG Quan ZHOU zheng-long yang Zhong CHEN Department and Institute of Urology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Rehabilitation Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China School of Mechanical Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China

Objective Bladder outlet obstruction(BOO)results in significant fibrosis in the chronic stage and elevated bladder ***1 is a type of mechanosensitive(MS)channel that directly responds to mechanical *** identify new targets for intervention in the treatment of BOO-induced fibrosis,this study investigated the impact of high hydrostatic pressure(HHP)on Piezo1 activity and the progression of bladder *** Immunofluorescence staining was conducted to assess the protein abundance of Piezo1 in fibroblasts from obstructed rat *** fibroblasts were cultured under normal atmospheric conditions(0 cmH_(2)O)or exposed to HHP(50 cmH_(2)O or 100 cmH_(2)O).Agonists or inhibitors of Piezo1,YAP1,and ROCK1 were used to determine the underlying *** The Piezo1 protein levels in fibroblasts from the obstructed bladder exhibited an elevation compared to the control *** significantly promoted the expression of various pro-fibrotic factors and induced proliferation of ***,the protein expression levels of Piezo1,YAP1,ROCK1 were elevated,and calcium influx was increased as the pressure *** effects were attenuated by the Piezo1 inhibitor *** Piezo1 activator Yoda1 induced the expression of pro-fibrotic factors and the proliferation of fibroblasts,and elevated the protein levels of YAP1 and ROCK1 under normal atmospheric conditions in ***,these effects could be partially inhibited by YAP1 or ROCK inhibitors.

关键词： high hydrostatic pressure bladder outlet obstruction fibrosis Piezo1

Multi boron-doping effects in hard carbon toward enhanced sodium ion storage

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Journal of Energy Chemistry 2025年第1期100卷 730-738页

作者： Peng zheng Wang Zhou Ying Mo Biao zheng Miaomiao Han Qin Zhong Wenwen yang Peng Gao Lezhi yang Jilei Liu College of Materials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan University Greater Bay Area Institute for Innovation Hunan University Changsha Research Institute of Mining & Metallurgy Co. LTD.

Hard carbon （HC） has been considered as promising anode material for sodium-ion batteries （SIBs）.The optimization of hard carbon’s microstructure and solid electrolyte interface （SEI） property are demonstrated effective in enhancing the Na+storage capability,however,a one-step regulation strategy to achieve simultaneous multi-scale structures optimization is highly ***,we have systematically investigated the effects of boron doping on hard carbon’s microstructure and interface chemistry.A variety of structure characterizations show that appropriate amount of boron doping can increase the size of closed pores via rearrangement of carbon layers with improved graphitization degree,which provides more Na+storage ***-situ Fourier transform infrared spectroscopy/electrochemical impedance spectroscopy （FTIR/EIS） and X-ray photoelectron spectroscopy （XPS） analysis demonstrate the presence of more BC3and less B–C–O structures that result in enhanced ion diffusion kinetics and the formation of inorganic rich and robust SEI,which leads to facilitated charge transfer and excellent rate *** a result,the hard carbon anode with optimized boron doping content exhibits enhanced rate and cycling *** general,this work unravels the critical role of boron doping in optimizing the pore structure,interface chemistry and diffusion kinetics of hard carbon,which enables rational design of sodium-ion battery anode with enhanced Na+storage performance.

关键词： X ray photoelectron spectroscopy

Synergistic promotion strategy of “dual-site” and “dual-path” to enhance the C–C coupling between CO2 and HCHO driven by photoelectrocatalysis

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Journal of Energy Chemistry 2025年第1期100卷 39-49页

作者： Hongqiang yang Jianfeng zheng Guoyu Wang Yifei Gao Yatao yang Jia Li Xiaojin Han Yan Cui Zhanggen Huang National Key Laboratory of High Efficiency and Low Carbon Utilization of Coal Institute of Coal Chemistry Chinese Academy of Science University of Chinese Academy of Science Shenyang University of Chemical Technology

Photoelectrocatalytic coupling CO2and volatile organic compounds （VOCs） is a promising green strategy for the synergistic conversion of the two carbon-containing resources to *** catalytic efficiency is always at the mercy of chemical inertness of CO2and the competitive hydrogen evolution of ***,a modified g-C3N4/ZnAl-LDH Z-scheme heterojunction catalyst with dual reaction site was rationally designed and precisely *** Faraday efficiency of ethanol reached 68.67%with a corresponding formation rate of 227.3μmol *** revealed by in-situ characterizations and density functional theory calculations,CO2and HCHO were absorbed at Zn site and N site,***,*CO generated from CO2and HCHO was converted to*CH3O and*CHO on the dual-active-site *** detailed reaction mechanism experiments indicated that C–C coupling only occurred between*CO and*CH3O in electrocatalysis *** from the“*CO+*CH3O”path,another“*CO+*CHO”coupling path was also detected in photoelectrocatalytic *** selectivity of ethanol was significantly enhanced due to the synthesis of dual-site catalyst and the dual-path coupling path between CO2and HCHO simultaneously driven by light and electricity.

关键词： Photoelectrocatalysis Z-scheme C–C coupling Ethanol

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单镜头无人机飞行参数优化方案

桂林理工大学学报 2021年第3期41卷 596-601页

作者：郑阳龙徐文兵梁丹浙江农林大学环境与资源学院杭州311300 同济大学测绘与地理信息学院上海200092 浙江同创空间技术有限公司杭州311300

针对无人机倾斜摄影测量的特点,提出最优飞行参数,满足单镜头无人机影像采集和三维模型重建的要求。利用单镜头无人机,分别采用3种航高(60、110和150 m)和3种云台俯仰角(-60°、-45°和-30°)进行无人机影像数据采集,另外,航高为110 m... 详细信息

针对无人机倾斜摄影测量的特点,提出最优飞行参数,满足单镜头无人机影像采集和三维模型重建的要求。利用单镜头无人机,分别采用3种航高(60、110和150 m)和3种云台俯仰角(-60°、-45°和-30°)进行无人机影像数据采集,另外,航高为110 m的影像数据采用了5种像控点密度分别进行建模;将RTK和地面激光雷达分别测量地面点位坐标和建筑物墙立面线段长度作为真实值,验证各飞行参数下地面点空间位置和建筑物墙立面线段长度的精度。通过综合分析,得到航高110 m、云台俯仰角-45°和像控点密度32个/km^(2)为最优飞行参数,可满足国土资源调查的要求。

关键词：倾斜摄影测量无人机实景三维模型精度验证

MoS_(2)Lubricate‑Toughened MXene/ANF Composites for Multifunctional Electromagnetic Interference Shielding

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Nano-Micro Letters 2025年第2期17卷 358-371页

作者： Jiaen Wang Wei Ming longfu Chen Tianliang Song Moxi Yele Hao Zhang long yang Gegen Sarula Benliang Liang Luting Yan Guangsheng Wang School of Physical Science and Engineering Beijing Jiaotong UniversityBeijing 100044People’s Republic of China Key Laboratory of Bio‑Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191People’s Republic of China

The design and fabrication of high toughness electromagnetic interference(EMI)shielding composite films with diminished reflection are an imperative task to solve electromagnetic pollution *** MXene/ANF(aramid nanofibers)–MoS_(2)composite films with nacre-like layered structure here are fabricated after the introduction of MoS_(2)into binary MXene/ANF composite *** introduction of MoS_(2)fulfills an impressive“kill three birds with one stone”improvement effect:lubrication toughening mechanical performance,reduction in secondary reflection pollution of electromagnetic wave,and improvement in the performance of photothermal *** the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 50:50),the strain to failure and tensile strength increase from 22.1±1.7%and 105.7±6.4 MPa and to 25.8±0.7%and 167.3±9.1 MPa,*** toughness elevates from 13.0±4.1 to 26.3±0.8 MJ m^(−3)(~102.3%)*** the reflection shielding effectiveness(SE_(R))of MXene/ANF(mass ratio of 50:50)decreases~10.8%.EMI shielding effectiveness(EMI SE)elevates to 41.0 dB(8.2–12.4 GHz);After the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 60:40),the strain to failure increases from 18.3±1.9%to 28.1±0.7%(~53.5%),the SE_(R)decreases~22.2%,and the corresponding EMI SE is 43.9 *** MoS_(2)also leads to a more efficient photothermal conversion performance(~45 to~55℃).Additionally,MXene/ANF–MoS_(2)composite films exhibit excellent electric heating performance,quick temperature elevation(15 s),excellent cycle stability(2,2.5,and 3 V),and long-term stability(2520 s).Combining with excellent mechanical performance with high MXene content,electric heating performance,and photothermal conversion performance,EMI shielding ternary MXene/ANF–MoS_(2)composite films could be applied in many industrial *** work broadens how to achieve a balance between mechanical properties and versatility of composites in the case of high-function fillers.

关键词： MXene-MoS_(2) Lubrication toughening EMI shielding Photothermal conversion Electric heating performance

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沥青路面蠕变响应现场预估方法与试验

中国公路学报 2017年第9期30卷 10-17页

作者：潘勤学郑健龙杨博查旭东刘宏富长沙理工大学交通运输工程学院湖南长沙410004 长沙理工大学公路养护技术国家工程实验室湖南长沙410114

为了揭示在役沥青路面结构的黏弹特性,给基于黏弹性本构的沥青路面设计提供参考,针对现有沥青路面应变测试仍然基于弹性假设的现状,依据三维线黏弹本构理论,通过现场埋设应变和温度传感器,开展不同温度与轴载作用下的沥青路面静载蠕变... 详细信息

为了揭示在役沥青路面结构的黏弹特性,给基于黏弹性本构的沥青路面设计提供参考,针对现有沥青路面应变测试仍然基于弹性假设的现状,依据三维线黏弹本构理论,通过现场埋设应变和温度传感器,开展不同温度与轴载作用下的沥青路面静载蠕变试验。基于实测应变变化规律对现有表征沥青混合料黏弹性本构模型的适用性进行了判别,并分析温度、偏应力等外部影响因素对沥青层黏弹性参数的影响规律,由此建立沥青路面应变随外部因素变化的预估模型。结果表明:实测蠕变历时曲线呈现的黏弹特性很好地符合Burgers模型,拟合判定系数超过0.98;Burgers模型的4个参数(G_1,G_2,η_1及η_2)均随温度的提高而减小,随偏应力的增加而增大,与偏应力、温度分别呈良好的线性和指数函数关系,拟合相关系数均大于0.84,其中黏性参数η_1和η_2受温度和偏应力的影响显著;按应变预估模型计算得到的应变与同等工况下的实测应变历时曲线规律吻合,应变值的相对误差在10%以内,表明建立的基于三维黏弹本构关系的沥青面层应变预估方法合理、可行。

关键词：道路工程蠕变应变预估方法 Burgers模型外部因素模型光纤光栅传感器

A Novel Self-Supervised Learning Network for Binocular Disparity Estimation

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 209-229页

作者： Jiawei Tian Yu Zhou Xiaobing Chen Salman A.AlQahtani Hongrong Chen Bo yang Siyu Lu Wenfeng zheng Department of Computer Science and Engineering Major in Bio Artificial IntelligenceHanyang UniversityAnsan-si15577Republic of Korea School of Electrical and Computer Engineering Louisiana State UniversityBaton RougeLA 70803USA Department of Computer Engineering College of Computer and Information SciencesKing Saud UniversityRiyadh11574Saudi Arabia School of Automation University of Electronic Science and Technology of ChinaChengdu610054China

Two-dimensional endoscopic images are susceptible to interferences such as specular reflections and monotonous texture illumination,hindering accurate three-dimensional lesion reconstruction by surgical *** study proposes a novel end-to-end disparity estimation model to address these *** approach combines a Pseudo-Siamese neural network architecture with pyramid dilated convolutions,integrating multi-scale image information to enhance robustness against lighting *** study introduces a Pseudo-Siamese structure-based disparity regression model that simplifies left-right image comparison,improving accuracy and *** model was evaluated using a dataset of stereo endoscopic videos captured by the Da Vinci surgical robot,comprising simulated silicone heart sequences and real heart video *** results demonstrate significant improvement in the network’s resistance to lighting interference without substantially increasing ***,the model exhibited faster convergence during training,contributing to overall performance *** study advances endoscopic image processing accuracy and has potential implications for surgical robot applications in complex environments.

关键词： Parallax estimation parallax regression model self-supervised learning Pseudo-Siamese neural network pyramid dilated convolution binocular disparity estimation