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Tailoring microstructure and electrical transportation through tensile stress in Bi_(2.Te_(3) thermoelectric fibers

Journal of Materiomics 2020年第3期6卷 467-475页

作者： Min Sun Guowu Tang Bowen huang Zhongjia Chen Yu-Jun Zhao Hanfu Wang Ziwen Zhao Dongdan Chen Qi Qian Zhongmin yang school of Physics and Optoelectronics South China University of TechnologyGuangzhou510640China State Key Laboratory of Luminescent Materials and Devices Institute of Optical Communication MaterialsGuangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and DevicesGuangdong Provincial Key Laboratory of Fiber Laser Material and Applied TechniquesSouth China University of TechnologyGuangzhou510640China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology of ChinaBeijing100190China Key Laboratory of Specialty Fiber Optics and Optical Access Networks Shanghai Institute for Advanced Communication and Data ScienceSchool of Communication and Information EngineeringShanghai UniversityShanghai200072China

Bismuth telluride(Bi_(2.Te_(3))has attracted much attention in the field of thermoelectrics since it is one kind of commercial room-temperature thermoelectric *** three kinds of Bi_(2.Te_(3) thermoelectric fibers with internal tensile stress are fabricated utilizing an optical fiber template *** effects of internal stress on the microstructure and the electrical transportation of Bi_(2.Te_(3) thermoelectric fibers are *** Bi_(2.Te_(3) cores in the fibers are highly crystalline and possess a tensile nanosheet structure with preferential orientation as evidenced by X-ray diffraction and Raman *** stress can enhance electrical properties of the *** a paper cup generator covered with 2. pieces of optimized fibers provides a μW-level output *** is inferred that tensile stress tuning can be an effective tool for the material optimization of thermoelectric performance.

关键词： Bi_(2.Te_(3) Thermoelectric fiber Tensile stress Electrical transportation

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Incidence and prognosis of olfactory and gustatory dysfunctions related to SARS-CoV-2.Omicron strain infection in China:A national multicenter survey of 35,566 individuals

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第2期10卷 113-120页

作者： Meng-Fan Liu Rui-Xia Ma Xian-Bao Cao Hua Zhang Shui-Hong Zhou Wei-Hong Jiang Yan Jiang Jing-Wu Sun Qin-Tai yang Xue-Zhong Li Ya-Nan Sun Li Shi Min Wang Xi-Cheng Song Fu-Quan Chen Xiao-Shu Zhang Hong-Quan Wei Shao-Qing Yu Dong-Dong Zhu Luo Ba Zhi-Wei Cao Xu-Ping Xiao Xin Wei Zhi-Hong Lin Feng-Hong Chen Chun-Guang Shan Guang-Ke Wang Jing Ye Shen-Hong Qu Chang-Qing Zhao Zhen-Lin Wang Hua-Bin Li Feng Liu Xiao-Bo Cui Sheng-Nan Ye Zheng Liu Yu Xu Xiao Cai Wei huang Ru-Xin Zhang Yu-Lin Zhao Guo-Dong Yu Guang-Gang Shi Mei-Ping Lu yang Shen Yu-Tong Zhao Jia-Hong Pei Shao-Bing Xie Long-Gang Yu Ye-Hai Liu Shao-Wei Gu Yu-Cheng yang Lei Cheng Jian-Feng liu Graduate school of Beijing university of Chinese Medicine BeijingChina Department of Otorhinolaryngology Head and Neck Surgery China-Japan Friendship HospitalBeijingChina Department of Otorhinolaryngology Head and Neck Surgery The First People's Hospital of YinchuanYinchuanChina Department of Otorhinolaryngology The First People's Hospital of Yunnan ProvinceKunmingChina Department of Otorhinolaryngology The First Affiliated Hospital of Xinjiang Medical UniversityUrumqiChina Department of Otorhinolaryngology Head and Neck Surgery The First Affiliated Hospital of Zhejiang University School of MedicineHangzhouChina Department of Otorhinolaryngology Head and Neck Surgery Xiangya Hospital Central South UniversityChangshaChina Department of Otorhinolaryngology Head and Neck Surgery The Affiliated Hospital of Qingdao UniversityQingdaoChina Department of Otorhinolaryngology Head and Neck Surgery The First Affiliated Hospital of USTCHefeiChina Department of Otorhinolaryngology Head and Neck Surgery The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina Department of Otorhinolaryngology Head and Neck Surgery Qilu Hospital of Shandong UniversityJinanChina Department of Otorhinolaryngology Head and Neck Surgery The Second Affiliated Hospital of Harbin Medical UniversityHarbinChina Department of Otolaryngology The Second Hospital of Shandong UniversityShandong UniversityJinanChina Department of Otorhinolaryngology Head and Neck Surgery Peking University People's HospitalBeijingChina Department of Otorhinolaryngology Head and Neck Surgery Yantai Yuhuangding HospitalQingdao UniversityYantaiChina Department of Otorhinolaryngology Head and Neck Surgery Xijing HospitalThe Fourth Military Medical UniversityXi'anChina Gansu Provincial Center for Disease Control and Prevention LanzhouChina Department of Otorhinolaryngology Head and Neck Surgery The First Affiliated Hospital of China Medical UniversityShenyangChina Department of Otorhinolaryngology Head and Neck Surgery Tongji Hospit

Objective:This cross-sectional study aimed to determine the epidemiology of olfactory and gustatory dysfunctions related to COVID-19 in ***:This study was conducted by 4. tertiary Grade-A hospitals in *** and offline questionnaire data were obtained from patients infected with COVID-19 between December 2.,2.2.,and February 2.,*** collected information included basic demographics,medical history,smoking and drinking history,vaccination history,changes in olfactory and gustatory functions before and after infection,and other postinfection symptoms,as well as the duration and improvement status of olfactory and gustatory ***:Complete questionnaires were obtained from 35,566 *** overall incidence of olfactory and taste dysfunction was 67.75%.Being female or being a cigarette smoker increased the likelihood of developing olfactory and taste *** received four doses of the vaccine or having good oral health or being a alcohol drinker decreased the risk of such *** infection,the average olfactory and taste VAS scores were 8.4. and 8.51,respectively;after infection,they decreased to 3.69 and 4.2. and recovered to 5.83 and 6.55 by the time of the *** median duration of dysosmia and dysgeusia was 15 and 12.days,respectively,with 0.5%of patients having symptoms lasting for more than 2. *** overall self-reported improvement rate was 59.16%.Recovery was higher in males,never smokers,those who received two or three vaccine doses,and those that had never experienced dental health issues,or chronic accompanying ***:The incidence of dysosmia and dysgeusia following infection with the SARS-CoV-2.virus is high in *** and prognosis are influenced by several factors,including sex,SARS-CoV-2.vaccination,history of head-facial trauma,nasal and oral health status,smoking and drinking history,and the persistence of accompanying symptoms.

关键词： epidemiologic studies incidence olfactory disorders prognosis SARS-CoV-2 taste disorders

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A Study of Two Cases Co-Infected with SARS-CoV-2.and Human Immunodeficiency Virus

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Virologica Sinica 2020年第6期35卷 849-852页

作者： Rong Zhang Xiaohua Chen Yuqing huang Qi Zhang Yan Cheng Nan Zhang Haibo Zhang Bo yang Fang Liu Yingle Liu Ke Lan Department of Clinical Laboratory General Hospital of Southern Theater CommandPLAGuangzhou 510000China Department of Clinical Laboratory General Hospital of Central Theater CommandPLAWuhan 430000China State Key Laboratory of Virology College of Life SciencesWuhan UniversityWuhan 430000China Department of Clinical Laboratory The 980st Hospital of the PLA Joint Logistics Support Force/Bethune International Peace HospitalShijiazhuang 050000China Department of Clinical Laboratory Jinling HospitalMedical School of Nanjing UniversityNanjing 210000China Department of information General Hospital of Southern Theater CommandPLAGuangzhou 510000China Department of Radiology General Hospital of Central Theater CommandPLAWuhan 430000China

Dear Editor,Since December 2.19,A new type of coronavirus pneumonia(coronavirus disease 2.19,COVID-19)has become endemic in Wuhan,*** far,COVID-19 has developed into a global *** body’s immune system plays an importa... 详细信息

关键词： Infect Cases China.

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基于深度学习和时空关联建模的降水数据地形订正方法

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太原理工大学学报 2024年第4期55卷 734-742页

作者：吴雪峰陈逸智王昌栋黄栋华南农业大学数学与信息学院广州510642 广东省气象数据中心广州510610 中山大学计算机学院广州510006

【目的】如何基于地形因素对降水数据进行误差订正(简称“地形订正”)是气象大数据研究的一个重要问题。但是,现有的降水数据地形订正方法存在两方面局限性:一是现有方法大多基于数据统计或传统机器学习而设计,未能拓展至特征学习能力... 详细信息

【目的】如何基于地形因素对降水数据进行误差订正(简称“地形订正”)是气象大数据研究的一个重要问题。但是,现有的降水数据地形订正方法存在两方面局限性:一是现有方法大多基于数据统计或传统机器学习而设计,未能拓展至特征学习能力更强的深度学习模型;二是现有方法亦未能结合气象数据的时间与空间关联信息以提升订正效果。【方法】提出一种基于深度学习与时空关联建模的降水数据地形订正方法。该方法首先对广东省降水数据和多源地形信息作预处理,结合经纬度进行对齐与编码,以构建相应的数据矩阵。进而结合各个格点的空间和时间邻域下的降水与地形数据进行多源时空信息建模,并结合降采样策略以缓解降水格点与非降水格点的数据不平衡性,最后构建深度神经网络进行回归订正。实验在广东省逾4.00个气象观测站点、逾15万气象格点的真实气象数据上进行。【结果】实验结果验证了时空关联建模策略对提升降水订正效果的显著作用以及所提出方法相比于其他对比方法的性能优势。

关键词：气象大数据深度学习降水量地形订正时空信息

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An NIR photothermal-responsive hybrid hydrogel for enhanced wound healing

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Bioactive Materials 2022年第10期7卷 162-172页

作者： Lin Jin Xiaoqing Guo Di Gao Yan Liu Jiahua Ni Zhiming Zhang Yiqiao huang Guibin Xu Zhe yang Xingcai Zhang Xianhan Jiang Department of Urology The Fifth Affiliated Hospital of Guangzhou Medical UniversityGuangzhou510700PR China International Joint Research Laboratory for Biomedical Nanomaterials of Henan Zhoukou Normal UniversityZhoukou466001PR China The Key Laboratory of Biomedical information Engineering of Ministry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’an710049PR China school of Engineering and Applied sciences Harvard UniversityCambridgeMA02138USA school of Engineering Massachusetts Institute of TechnologyCambridgeMA02139USA Research Institute of Xi’an Jiaotong university HangzhouZhejiang311200PR China

Moderately regulating vascularization and immune microenvironment of wound site is necessary to achieve scarless wound healing of the ***,we have prepared an angiogenesis-promoting and scar-preventing band-aid with a core-shell structure,that consists of MXene-loaded nanofibers(MNFs)as the core and dopamine-hyaluronic acid hydrogel(H)as the shell(MNFs@V-H@DA)to encapsulate a growth factor(vascular endothelial growth factor,VEGF,abbreviated as V)and H2. donor(diallyl trisulfide,DATS,abbreviated as DA).The continuous release of DA from this system produced H2.,which would successfully induce macrophages to polarize into M2.lile phenotype,regulating the immune microenvironment and inhibiting an excessive inflammatory response at the wound *** is conducive to the proliferation of skin cells,facilitating the wound *** addition,an appropriate amount of VEGF can be released from the MXene nanofibrous skeleton by adjusting the time of near-infrared(NIR)light exposure,preventing excessive neovascularization and extracellular matrix deposition at the wound ***,this NIR photothermal-responsive band-aid achieved scarless wound healing through gradient-controlled vascularization and a related immune sequential reaction of damaged skin tissue.

关键词： Angiogenesis promotion NIR response Hydrogel Nanofibers Scarless wound healing

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eVTOL飞行器冗余捷联惯性导航信息融合研究

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华南理工大学学报（自然科学版） 2024年第10期52卷 1-8页

作者：胡青春黄思陈兴彬张宁苏庆鹏华南理工大学机械与汽车工程学院广东广州510640 广东省生产力促进中心广东广州510700 广州汽车集团股份有限公司汽车工程研究院广东广州511434

电动垂直起降(eVTOL)飞行器的运用,作为一种未来城市交通的潜在解决方案,具有缓解城市交通拥堵和提高空中交通效率的巨大潜力。在其常用的导航系统中,通常采用组合导航和传感器余度技术来提高系统可靠性与安全性。然而,在当前导航系统... 详细信息

电动垂直起降(eVTOL)飞行器的运用,作为一种未来城市交通的潜在解决方案,具有缓解城市交通拥堵和提高空中交通效率的巨大潜力。在其常用的导航系统中,通常采用组合导航和传感器余度技术来提高系统可靠性与安全性。然而,在当前导航系统的传感器余度技术中,冗余传感器只起到备份数据的作用,导致测量数据的信息利用率不高。为解决这一问题,文中以三余度的捷联惯性导航系统(SINS)和全球导航卫星系统(GNSS)的组合导航系统为研究对象,提出了一种基于二阶互差分和惯性传感器(IMU)冗余信息的陀螺仪噪声实时估计方法,推导了在二余度和三余度情况下陀螺仪噪声估计的递推式;在获得陀螺仪的噪声估计值后,采用自适应扩展卡尔曼滤波方法将SINS和GNSS的导航信息进行融合,以提高组合导航系统的准确性和鲁棒性。通过对SINS/GNSS组合导航系统进行仿真和真实跑车实验,结果表明:文中方法能够准确估计陀螺仪噪声;相较于传统融合方法,引入陀螺仪噪声实时估计后,组合导航系统的导航精度和抗干扰能力得到了提高,具有实际的工程意义。

关键词：组合导航余度技术噪声估计二阶互差分

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薄膜铌酸锂声光调制器的研究进展(特邀)

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激光与光电子学进展 2024年第11期61卷 71-83页

作者：黄继莹万磊陈承渝陈玉萍李朝晖宁夏大学物理学院宁夏银川750021 暨南大学信息科学技术学院电子工程系广东广州510632 区域光纤通信网与新型光通信系统国家重点实验室上海交通大学物理与天文学院上海200240 中山大学光电子信息处理芯片与系统广东省重点实验室广东广州510275 南方海洋科学与工程广东实验室广东珠海519000

声表面波驱动的片上集成声光调制器因其体积小、高效率、低能耗、易集成等优点,成为微波到光波高效转换的关键技术。总结了薄膜铌酸锂声光调制器的最新研究进展,重点关注其在微波光子信息处理领域的应用。首先,介绍了薄膜铌酸锂声光调... 详细信息

声表面波驱动的片上集成声光调制器因其体积小、高效率、低能耗、易集成等优点,成为微波到光波高效转换的关键技术。总结了薄膜铌酸锂声光调制器的最新研究进展,重点关注其在微波光子信息处理领域的应用。首先,介绍了薄膜铌酸锂声光调制器的基本原理。然后,回顾了近些年来薄膜铌酸锂声光调制器的关键研究成果,包括调制速度、调制效率、光机耦合系数等性能指标的提升和优化。最后,还探讨了薄膜铌酸锂声光调制器在滤波器、声光频移与激光雷达、隔离器、微波-光波转换方面的应用潜力,并对片上声光调制器的未来研究趋势进行了简单的展望。

关键词：薄膜铌酸锂声光调制光机耦合微波-光波转换

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Semi-Implantable Bioelectronics

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Nano-Micro Letters 2022年第7期14卷 354-408页

作者： Jiaru Fang Shuang huang Fanmao Liu Gen He {2.ling Li Xinshuo huang Hui-jiuan Chen Xi Xie State Key Laboratory of Optoelectronic Materials and Technologies Guangdong Province Key Laboratory of Display Material and TechnologySchool of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510006People’s Republic of China

Developing techniques to effectively and real-time monitor and regulate the interior environment of biological objects is significantly important for many biomedical engineering and scientific applications, including drug delivery, electrophysiological recording and regulation of intracellular activities. Semi-implantable bioelectronics is currently a hot spot in biomedical engineering research area, because it not only meets the increasing technical demands for precise detection or regulation of biological activities, but also provides a desirable platform for externally incorporating complex functionalities and electronic integration. Although there is less definition and summary to distinguish it from the well-reviewed non-invasive bioelectronics and fully implantable bioelectronics, semi-implantable bioelectronics have emerged as highly unique technology to boost the development of biochips and smart wearable device. Here, we reviewed the recent progress in this field and raised the concept of “Semi-implantable bioelectronics”, summarizing the principle and strategies of semi-implantable device for cell applications and in vivo applications, discussing the typical methodologies to access to intracellular environment or in vivo environment, biosafety aspects and typical applications. This review is meaningful for understanding in-depth the design principles, materials fabrication techniques, device integration processes, cell/tissue penetration methodologies, biosafety aspects, and applications strategies that are essential to the development of future minimally invasive bioelectronics.

关键词： Semi-implantable bioelectronics Cell applications In vivo applications

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UAVs as remote sensing platforms in plant ecology:review of applications and challenges

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Journal of Plant Ecology 2021年第6期14卷 1003-1023页

作者： Zhongyu Sun Xiaonian Wang Zhihui Wang Long yang Yichun Xie Yuhui huang Guangdong Open Laboratory of Geospatial information technology and Application Guangzhou Institute of GeographyGuangdong Academy of SciencesGuangzhou 510070China school of Geographical sciences South China Normal UniversityGuangzhou 510631China Department of Geography and Geology Eastern Michigan UniversityYpsilantiMI 48197USA Guangdong Provincial Key Laboratory of Silviculture Protection and UtilizationGuangdong Academy of ForestryGuangzhou 510520China

Aims Unmanned aerial vehicles(UAVs),***,have recently emerged as cost-effective and flexible tools for acquiring remote sensing data with fine spatial and temporal *** provides a new method and opportunity for plant ecologists to study issues from individual to regional ***,as a new method,UAVs remote sensing applications in plant ecology are still *** needs of plant ecology research and the application development of UAVs remote sensing should be better *** This report provides a comprehensive review of UAV-based remote sensing applications in plant ecology to synthesize prospects of applying drones to advance plant ecology *** Findings Of the 4.0 references,59%were published in remote sensing journals rather than in plant ecology journals,reflecting a substantial gap between the interests of remote sensing experts and plant *** of the studies focused on UAV remote sensing’s technical aspects,such as data processing and remote sensing inversion,with little attention on answering ecological *** were 61%of studies involved community-scale *** and multispectral cameras were the most used sensors(75%).More ecologically meaningful parameters can be extracted from UAV data to better understand the canopy surface irregularity and community heterogeneity,identify geometrical characteristics of canopy gaps and construct canopy chemical assemblies from living vegetation *** cooperation between plant ecologists and remote sensing experts is needed to promote UAV remote sensing in advancing plant ecology research.

关键词： UAVs drones unmanned aircraft systems(UASs) plant ecology species identification community function

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Securing Parked Vehicle Assisted Fog Computing With Blockchain and Optimal Smart Contract Design

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IEEE/CAA Journal of Automatica Sinica 2020年第2期7卷 426-441页

作者： Xumin huang Dongdong Ye Rong Yu Lei Shu school of Automation Guangdong University of TechnologyGuangzhou 510006 Guangdong Key Laboratory of IoT information technology Guangdong University of TechnologyGuangzhou 510006China Guangdong-Hong Kong-Macao Joint Laboratory for Smart Discrete Manufacturing Guangzhou 510006China College of Engineering Nanjing Agricultural UniversityNanjing 210095China school of Engineering University of LincolnLincoln LN67TSUK

Vehicular fog computing(VFC)has been envisioned as an important application of fog computing in vehicular *** vehicles with embedded computation resources could be exploited as a supplement for *** cooperate with fog servers to process offloading requests at the vehicular network edge,leading to a new paradigm called parked vehicle assisted fog computing(PVFC).However,each coin has two *** is a follow-up challenging issue in the distributed and trustless computing *** centralized computation offloading without tamper-proof audit causes security *** could not guard against false-reporting,free-riding behaviors,spoofing attacks and repudiation ***,we leverage the blockchain technology to achieve decentralized *** posting,workload undertaking,task evaluation and reward assignment are organized and validated automatically through smart contract *** activities in computation offloading become transparent,verifiable and traceable to eliminate security *** this end,we introduce network entities and design interactive smart contract operations across *** optimal smart contract design problem is formulated and solved within the Stackelberg game framework to minimize the total payments for *** analysis and extensive numerical results are provided to demonstrate that our scheme has high security and efficiency guarantee.

关键词： Blockchain parked vehicle smart contract Stackelberg game vehicular fog computing(VFC)

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