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Activating proper inflammation for wound-healing acceleration via mesoporous silica nanoparticle tissue adhesive

Nano Research 2020年第2期13卷 373-379页

作者： Zhao Pan Kai-run zhang Huai-Ling Gao Yong Zhou Bei-Bei Yan Chi Yang Zhi-Yuan zhang Liang Dong Si-Ming Chen Rui Xu Duo-Hong Zou Shu-Hong Yu Division of Nanomaterials&Chemistry Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Center for Excellence in NanoscienceHefei Science Center of CASCollaborative Innovation Center of Suzhou Nano Science and Techology Department of ChemistryUniversity of Science and Technology of ChinaHefei 230026China Department of Oral Surgery Ninth People's HospitalShanghai Jjiao Tong University School of MedicineShanghai Key Laboratory of StomatologyNational Clinical Research Center of StomatologyShanghai 200011China Key Laboratory of Oral Diseases Research ofAnhui Province Stomatologic Hospital&CollgeAnhui Medical University Heifei 230032China

Efficient initiation and resolution of inflammation are crucial for wound ***,with using tissue adhesives for wound repair,patients occasionally suffered from delayed healing process because slow elimination of those exogenous adhesives generally leads to chronic *** the demand for minimal invasive therapy continues to rise,desire for adhesive materials that can effectively reconnect surgical gaps and promote wound regeneration becomes increasingly ***,by exploiting the inherent porous structure and performance of adhesion to tissue of mesoporous silica nanoparticles(MSNs),we demonstrate a tissue adhesive that can elicit acute inflammatory response and get eliminated after tissue *** formation of nanocomposites in wound gaps,the injured tissues can get reconnected *** resultant accelerated healing process verifty that the strategy of exploiting unique properties of nanomaterials can effectively promote inflammation resolution and wound *** design strategy will inspire more innovative tissue adhesives for clinical applications.

关键词： mesoporous nanoparticle tissue adhesive wound repair inflammation accelerated healing

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Synthesis and Evaluation on Performance of Hydrogen Storage of Multi-Walled Carbon Nanotubes Decorated with Platinum

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Journal of Wuhan University of Technology(Materials Science) 2003年第3期18卷 33-35页

作者：木士春 State Key Labof Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

By means of chemical reduction,nanoparticles of platinum were deposited on the surface of multi walled carbon nanotubes (MWCNTs).The performance of hydrogen storage of as prepared MWCNTs decorated with platinum was *** results indicate that:(1) Hydrogen uptake is more quick and intense for decorated MWCNTs than that for not decorated ones at 10.931MPa and room *** saturation of hydrogen uptake of the former only lasts about 30min,while the latter needs about 150 min;(2) The amount of hydrogen uptake of decorated MWCNTs is about 1.13wt%, which is larger than that of not decorated ones(about 0.54wt%);(3) However,more than 37% hydrogen absorbed by decorated MWCNTs is chemisorbed.

关键词： nanoscale platinum carbon nanotubes hydrogen storage materials of energy resource Pt/carbon nanotubes catalysts

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Novel self-assembled porous yolk-shell NiO nanospheres with excellent electrochromic performance for smart windows

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Particuology 2024年第1期84卷 72-80页

作者： Baoshun Wang Ya Huang Siming Zhao run Li Di Gao Hairong Jiang Rufan zhang Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing100084China

With the rapid development of optoelectronics,electrochromic(EC)materials(ECMs)with the advan-tages of low power consumption,easy viewing,high contrast ratio,etc have attached more and more attention from the fields of smart windows,electronic billboards,emerging wearable and portable electronics,and other next-generation *** oxide(NiO)is a promising candidate for high-performance ECMs because of its neutral-colored states and low ***,NiO-based ECMs still face the problem of slow switching speed due to their low electrical conductivity and small lattice ***-organic frameworks(MOFs)are promising candidates to fabricate hollow and porous transition metal oxides(TMOs)with high ion transport efficiency,excellent specific capacitance,and electrochemical *** this work,porous yolk-shell NiO nanospheres(PYS-NiO NSs)were syn-thesized via a solvothermal and subsequent calcination process of Ni-MOF,which exhibited outstanding EC *** the large specific surface areas and hollow porous nanostructures were conducive to ionic transport,PYS-NiO NSs exhibited a fast coloring/bleaching speed(3.6/3.9 s per one coloring/bleaching cycle)and excellent cycling stability(82%of capacity retention after 3000 cycles).These superior EC properties indicated that the PYS-NiO NSs was a promising candidate for high-performance EC *** work provides a new and feasible strategy for the efficient preparation of TMOs ECMs with good EC performance,especially fast switching speed.

关键词： Electrochromic Nickel oxide Metal-organic frameworks Hollow structure Smart windows

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金属矿山高浓度充填管道磨损规律与防控技术

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金属矿山 2024年第6期 181-190页

作者：王小林张润邱征郭进平吴爱祥王洪江乔思凯顾清华卢才武西安建筑科技大学资源工程学院陕西西安710055 北京科技大学土木与资源工程学院北京100083

金属矿高浓度充填能有效消除尾矿库和采空区危害,但充填管道磨损问题也成为制约充填效率的因素之一。基于对管道磨损类型的划分,从颗粒性质、料浆性质、料浆—管壁接触条件、管材性质和管道所处外部环境5个方面综述了充填管道磨损的影... 详细信息

金属矿高浓度充填能有效消除尾矿库和采空区危害,但充填管道磨损问题也成为制约充填效率的因素之一。基于对管道磨损类型的划分,从颗粒性质、料浆性质、料浆—管壁接触条件、管材性质和管道所处外部环境5个方面综述了充填管道磨损的影响因素;基于理论分析和现场实测归纳了5种不同形式充填管道的磨损规律,以此总结了充填管道磨损的防控技术。现有研究结果表明,不满管流时,充填管道最主要的磨损形式是冲蚀磨损,料浆流速的影响最显著;满管流时,磨蚀和腐蚀对管道磨损起重要作用,料浆浓度的影响最显著。垂直管道中,料浆—空气交界面处磨损最严重,提高满管率并采用等倍线设计可有效控制其磨损。水平直管和倾斜直管底部磨损最严重,水平弯管的底部和垂直弯管外侧为易磨部位。使用新型管道结构和耐磨管材,提高料浆均质性,优化充填骨料级配,改进充填作业制度,全面监测管网压力,革新管道磨损数据获取手段,采用数值模拟技术深入揭示管道磨损规律等措施,可直接或间接对充填管道磨损防控起到积极作用。研究结果可为矿山充填管道磨损控制提供指导。

关键词：金属矿山高浓度充填管道磨损磨损规律磨损防控

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Histological,transcriptomic,and gene functional analyses reveal the regulatory events underlying gibberellin-induced parthenocarpy in tomato

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Horticultural Plant Journal 2024年第1期10卷 156-170页

作者： Shaobo Niu Yu He Siwei Yan Zhengliang Sun run Cai Yan zhang Shaanxi Engineering Research Center for Vegetables College of HorticultureNorthwest A&F UniversityYanglingShaanxi 712100China

Gibberellin(GA)is one of the major plant hormones that promote parthenocarpy,a highly valuable agronomic ***,we demonstrated that exogenous GA3application triggered the formation of parthenocarpic fruits with smaller size but unchanged shape in tomato(Solanum lycopersicum).These fruits exhibited a thicker pericarp,undeveloped ovules,and few jelly tissues,leading to smaller locules with empty *** investigation showed that GA treatment produced more cell layers with larger cells in the pericarp,suggesting its promotion in both cell division and *** analyses between GA-3and mock-treated unpollinated ovaries/fruits identified a large number of differentially expressed genes related to hormones,cell division,cell expansion,and transcription factors,implying that they coordinately regulated parthenocarpy conferred by *** particular,the downregulation of five reported repressors of tomato parthenocarpy,including two auxin signaling components,AUXIN RESPONSE FACTOR5(SlARF5)and Sl ARF7,and three MADS-box genes,TOMATO APETALA3(TAP3),TOMATO PISTILLATA(TPI),and AGAMOUS-LIKE6(SlAGL6),after GA treatment might play a key role in this ***,we found that the knockdown of a GA signaling factor SlMYB33,which was depressed by GA treatment,induced parthenocarpic fruit set in tomato,an effect that might have been achieved by enhancing GA biosynthesis and decreasing the expression of some repressors of tomato ***,our results provide a basis for understanding the regulatory mechanism of GA in tomato parthenocarpy.

关键词： Tomato Gibberellin Parthenocarpy Histology Transcriptome SlMYB33

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Fatigue Crack Initiation and Propagation Dominated by Crystallographic Factors in TiB/near α-Ti Composite

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Acta Metallurgica Sinica(English Letters) 2024年第5期37卷 763-776页

作者： Fanchao Meng Rui zhang Shuai Wang Fengbo Sun run Chen Lujun Huang Lin Geng School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China Waikato Centre for Advanced Materials and Manufacturing School of EngineeringUniversity of WaikatoHamilton 3240New Zealand State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001China

Discontinuously reinforced titanium matrix composites(DRTMCs)with a network structure have been extensively researched due to their superior combination of strength and ***,their fatigue performance has remained *** order to elucidate the fatigue behavior of DRTMCs,a tension-tension fatigue test was performed on a TiB/nearα-Ti composite with network *** results showed that the variability of fatigue lifetime increased as the stress level *** analysis indicated that fatigue crack initiation was associated with facet formation,while the subsequent propagation was hindered by the network structure comprising TiB whiskers and *** characterization further revealed that facets formed due to a combination of shear and normal *** reduction in fatigue lifetime was attributed to an increase in the effective slip length,which was influenced by the orientation of grains near the crack-initiation sites toward basal slip in the life-limiting *** in situ observation suggested that the crack initiation was facilitated by both basal and prismatic slip ofα-Ti as well as fracture of *** propagation was found to be associated with basal and prismatic slip systems with high Schmid factors,regardless of whether the crack was intergranular or intragranular.

关键词： Titanium matrix composite TiBw Fatigue lifetime variability Crack initiation Crack propagation

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中强震短临余震智能分析预测系统设计与实现

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电脑与电信 2024年第4期 68-72,79页

作者：张一驰冼永镇黄素颖安嘉诺张润杰蒋俊桂林电子科技大学计算机与信息安全学院广西桂林541004

鉴于全球地震活动的频繁性和中强震之后早期余震的破坏力,为解决现有余震预测系统中算法单一、功能离散化及可视化系统不足等问题,基于Vue、SpringBoot、Django主流Web框架技术与机器学习算法,设计并实现了一套集数据上传、数据集生成... 详细信息

鉴于全球地震活动的频繁性和中强震之后早期余震的破坏力,为解决现有余震预测系统中算法单一、功能离散化及可视化系统不足等问题,基于Vue、SpringBoot、Django主流Web框架技术与机器学习算法,设计并实现了一套集数据上传、数据集生成、数据可视化、模型训练以及预测评估为一体的余震智能分析预测系统。允许用户通过动态机制生成训练数据集,通过用户自定义算法机制和模型动态选择机制,使用户能够直接在系统中编写算法训练预测模型,同时采用当前主流的ECharts数据大屏技术对地震关键数据进行动态可视化,显著提高了地震数据分析的直观性和用户体验,为余震预测领域的研究人员提供了一套易用性高的平台系统,为地震领域研究与中强震短临余震提供支持。

关键词：余震预测智能系统机器学习 Springboot Vue Django

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Accumulation of freshwater in the permanent ice zone of the Canada Basin during summer 2008

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Acta Oceanologica Sinica 2017年第8期36卷 101-108页

作者： TONG Jinlu CHEN Min1 YANG Weifeng zhang run PAN Hong ZHENG Minfang QIU Yusheng HU Wangjiang ZENG Jian College of Ocean and Earth Sciences Xiamen UniversityXiamen 361102China State Key Laboratory of Marine Environmental Science Xiamen UniversityXiamen 361102China

A combination of 5180 and salinity data was employed to explore the freshwater balance in the Canada Basin in summer 2008. The Arctic river water and Pacific river water were quantitatively distinguished by using different saline end-members. The fractions of total river water, including the Arctic and Pacific river water, were high in the upper 50 m and decreased with depth as well as increasing latitude. In contrast, the fraction of Pacific river water increased gradually with depth but decreased toward north. The inventory of total river water in the Canada Basin was higher than other arctic seas, indicating that Canada Basin was a main storage region for river water in the Arctic Ocean. The fraction of Arctic river water was higher than Pacific river water in the upper 50 m while the opposite was true below 50 m. As a result, the inventories of Pacific river water were higher than those of Arctic river water, demonstrating that the Pacific inflow through the Bering Strait is the main source of freshwater in the Canada Basin. Both the river water and sea-ice melted water in the permanent ice zone were more abundant than those in the region with sea-ice just melted. The fractions of total river water, Arctic river water, Pacific river water increased northward to the north of 82°N, indicating an additional source of river water in the permanent ice zone of the northern Canada Basin. A possible reason for the extra river water in the permanent ice zone is the lateral advection of shelf waters by the Trans-Polar Drift. The penetration depth of sea-ice melted waters was less than 30 m in the southern Canada Basin, while it extended to 125 m in the northern Canada Basin. The inventory of sea- ice melted water suggested that sea-ice melted waters were also accumulated in the permanent ice zone, attributing to the trap of earlier melted waters in the permanent ice zone via the Beaufort Gyre.

关键词： 18O freshwater river water sea ice melted water Canada Basin

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Trends of 7 Organic Solvent-induced Occupational Diseases in Guangdong,from 2006 to 2015

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Biomedical and Environmental Sciences 2020年第11期33卷 862-866页

作者： LI Xu Dong TU Hong Wei CHEN Jia Bing YU Hong Wei zhang run Ze CHEN Pei Liang HU Shi Jie Guangdong Province Hospital for Occupational Disease Prevention and Treatment Guangzhou 510300GuangdongChina Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment Guangzhou 510300GuangdongChina Guangodng Provincial Center for Diseases Control and Prevention Guangzhou 511430GuangdongChina Department of Epidemiology School of Public HealthSouthern Medical UniversityGuangzhou 510515GuangdongChina

Occupational exposure to organic solvents and the resulting health damage caused by organic solvent-induced occupational diseases(OSODs)have raised concern[1],as they have accounted for more than 70%of occupational-poisoning cases in Guangdong province[2,3].However,there have been limited longitudinal studies examining OSOD patterns and temporal trends with a large sample in Guangdong.

关键词： Guangdong raised Occupational

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Basic Computer Teaching Research and Practice in Universities Based on Computational Thinking

Basic Computer Teaching Research and Practice in Universitie...

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2013教育技术与信息系统国际会议

作者： run zhang Junsheng Yang Computer and Network Center Communication University of China

With the rapid development and extensive application of information technology, basic computer education in universities is facing severe challenges. In this paper, we analysed the reason why computational thinking was introduced to basic computer teaching in *** proposed a targeted teaching idea based on computational thinking, elaborated the implementation of basic computer teaching reform in teaching design and teaching *** teaching results show that basic computer teaching based on computational thinking is a more effective way to improve quality of teaching.

关键词： Basic Computer Education Computational Thinking Teaching Iidea Teaching Design Teaching Pattern

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