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Preparation of MXene-based hybrids and their application in neuromorphic devices

International Journal of Extreme Manufacturing 2024年第2期6卷 164-188页

作者： Zhuohao Xiao Xiaodong Xiao Ling Bing Kong hongbo dong Xiuying Li Bin He Shuangchen Ruan Jianpang Zhai Kun Zhou Qin Huang Liang Chu School of Materials Science and Engineering Jingdezhen Ceramic UniversityJingdezhen 333403JiangxiPeople’s Republic of China School of Mechanical and Vehicle Engineering Linyi UniversityLinyi 276000ShandongPeople’s Republic of China College of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118GuangdongPeople’s Republic of China School of Mechanical&Aerospace Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore Ningbo Institute of Materials Engineering and Technology Chinese Academy of ScienceNingbo 315201ZhejiangPeople’s Republic of China Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018ZhejiangPeople’s Republic of China

The traditional von Neumann computing architecture has relatively-low information processing speed and high power consumption,making it difficult to meet the computing needs of artificial intelligence(AI).Neuromorphic computing systems,with massively parallel computing capability and low power consumption,have been considered as an ideal option for data storage and AI computing in the ***,as the fourth basic electronic component besides resistance,capacitance and inductance,is one of the most competitive candidates for neuromorphic computing systems benefiting from the simple structure,continuously adjustable conductivity state,ultra-low power consumption,high switching speed and compatibility with existing CMOS *** memristors with applying MXene-based hybrids have attracted significant attention in recent ***,we introduce the latest progress in the synthesis of MXene-based hybrids and summarize their potential applications in memristor devices and neuromorphological *** explore the development trend of memristors constructed by combining MXenes with other functional materials and emphatically discuss the potential mechanism of MXenes-based memristor ***,the future prospects and directions of MXene-based memristors are briefly described.

关键词： MXene etching fabrication memristor neuromorphic

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煤矿用自动化钻机远程控制系统的研制

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煤田地质与勘探 2024年第5期52卷 151-159页

作者：董洪波姚宁平王天龙马斌彭光宇中煤科工西安研究院(集团)有限公司陕西西安710077

针对钻机在复杂施工环境下所面临的劳动强度大以及安全风险高等问题,采用电子电路技术、测量传感技术、远程控制技术、视频监测技术以及大数据技术,研制出一套适用于煤矿自动化钻机的远程监控系统。该系统以ZDY4500LFK型煤矿用钻机为主... 详细信息

针对钻机在复杂施工环境下所面临的劳动强度大以及安全风险高等问题,采用电子电路技术、测量传感技术、远程控制技术、视频监测技术以及大数据技术,研制出一套适用于煤矿自动化钻机的远程监控系统。该系统以ZDY4500LFK型煤矿用钻机为主体,实现了视距内控制、井下集控以及地面远程监控3种控制模式,并构建了云端自动化钻机管控平台。具体而言,视距内监控模式通过遥控器、控制器及配套传感器,实现了对井下视觉范围内钻机的精确操作;井下集控模式则集成了集控舱、隔爆兼本安型计算机、本安显示器、隔爆兼本安型交换机、本安摄像头以及本安操控箱等设备,实现了对井下危险钻场的钻机远距离安全监控;地面监控模式则通过地面操控台、地面服务器、显示器、交换机以及AI智能分析盒子等设备,为自动化钻机的地面远程监控提供了有力支持。此外,云端自动化钻机管控平台则主要用于自动化钻机群运行状态和施工状态的数据统计与分析。研制的远程控制系统应用于ZDY4500LFK、ZDY6500LDK型钻机,并实现了视距内遥控、井下集控以及地面远距离控制等多种控制方式的稳定运行。现场试验和测试研究结果表明:(1)钻机视距内遥控系统遥控器按键丰富、控制器具有CAN、RS485等丰富的接口,手机升级便捷方便,可广泛应用于钻机电控化升级和改造。(2)远程集中控制系统可以实现10km距离的远程控制,控制响应时间小于200ms。视频、参数采集数据响应及时无卡滞,可以满足井下钻机远程监控的需求。(3)地面远程监控系统可以实现地面钻机远程监控并具有AI识别功能,可实现人员闯入预警和停机功能。(4)自动化钻机管控平台经过功能、压力、并行、访问测试,功能正常,响应及时,系统无崩溃,可用于自动化钻机数据和工况的统计分析。该控制系统的应用在保证钻孔施工安全的同时也为煤矿钻机实现少人化、智能化、信息化提供了借鉴。

关键词：自动化钻机遥控远程控制地面监控集控煤矿

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THQ50-C镀铜焊丝表面锈蚀原因探讨与分析

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材料导报 2024年第S1期38卷 392-396页

作者：左茂方左青源马正伟王厚山董洪波山东工业职业学院冶金与汽车工程学院山东淄博256414 大连理工大学光电工程与仪器科学学院辽宁大连116024 临沂大学机械与车辆工程学院山东临沂276000

本工作对THQ50-C镀铜焊丝出现表面锈蚀的影响因素进行了研究和梳理,使用ZEISS-ULTRA场扫描电镜观察了镀铜焊丝表面SEM形貌和焊丝横截面镀铜层与母丝基体结合区SEM形貌,并测量了镀铜层厚度,分析了Cu、O、Fe三种元素的EDS能谱。利用OLYMPU... 详细信息

本工作对THQ50-C镀铜焊丝出现表面锈蚀的影响因素进行了研究和梳理,使用ZEISS-ULTRA场扫描电镜观察了镀铜焊丝表面SEM形貌和焊丝横截面镀铜层与母丝基体结合区SEM形貌,并测量了镀铜层厚度,分析了Cu、O、Fe三种元素的EDS能谱。利用OLYMPUS GX53光学显微镜观察了焊丝横截面镀铜层与母丝基体结合区OM形貌,并对以上观察结果进行了分析。结果表明,THQ50-C镀铜焊丝出现表面锈蚀的根本原因是焊丝加工过程的母丝表面残留了许多微细沟壑、单深坑、细麻点等表面缺陷,这些缺陷宏观表现为树皮棱状凸凹不平的状态。进一步分析认为以上缺陷是由于焊丝母材盘条原有的表面缺陷经拉拔加工后“遗传”到焊丝母丝表面所引起的,从而导致了焊丝表面镀铜层不能完全覆盖焊丝基体形成致密铜层,在焊丝储存过程中由于环境腐蚀而出现了锈蚀现象。

关键词：镀铜焊丝表面锈蚀镀铜层母材盘条划痕表面缺陷遗传

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MXenes and MXene-based composites for energy conversion and storage applications

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Journal of Materiomics 2023年第6期9卷 1067-1112页

作者： Zhuohao Xiao Xiaodong Xiao Ling Bing Kong hongbo dong Xiuying Li Xinyuan Sun Bin He Shuangchen Ruan Jianpang Zhai School of Mechanical and Vehicle Engineering Linyi UniversityLinyi276000ShandongChina School of Materials Science and Engineering Jingdezhen Ceramic UniversityJingdezhen333403JiangxiChina College of New Materials and New Energies Shenzhen Technology UniversityShenzhen518118GuangdongChina Department of Physics Jinggangshan UniversityJi'an343009JiangxiChina

MXenes have received extensive attention from scholars due to their unique layered structure,significant electrical conductivity,and excellent mechanical *** addition to their pristine forms,they could also be incorporated with other components for attaining hybrids and nanocomposites,accompanying with amplified *** has been widely used in lithium batteries,supercapacitors,electromagnetic shielding,tumor therapy,biosensors,photocatalysis,and other fields,and has shown great application potential in energy conversion and *** purpose of this article is to encyclopaedically overview the latest progress in synthesis and characterization of MXenes,while their potential applications in energy conversation such as water splitting and solar cells,as well as in energy storage such as Li-ion batteries,supercapacitors,and hydrogen energy will be comprehensively *** opportunities and challenges are summarized.

关键词： MXenes 2D materials Materials characterization Energy converstion Energy storage

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A Finite-Element Analysis on the Rheorolling Process of Semi-Solid Spring Steel

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Journal of Materials Science & Technology 2003年第Z1期19卷 62-64页

作者： hongbo dong Yonglin KANG Department of Material Processing and Controlling University of Science and Technology Beijing Beijing 100083 China Department of Material Processing and Controlling University of Science and Technology Beijing Beijing 100083 China

With a geometrical model of porous material, a 3D finite-element analysis on the rolling process of spring steel60Si2Mn in the semi-solid state is carried out using software MARC. In terms of flat and groove rolling conditions,stress field and strain field are studied. The simulation results show that the rigid-viscoplastic model can accuratelydescribe the semi-solid metal rolling process. Semi-solid slurry has the characteristics of low flow stress and goodfluidity. During groove rolling, distribution of stress and strain on the cross-section of deformation zone is moreuniform than that during flat rolling. The results of simulation are in good agreement with the experiment data, andshow that semi-solid material fits for groove rolling.

关键词： Finite-element analysis, Stress, Strain, Semi-solid metal

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Comparison and analysis of dislocation density,morphology and evolution in mi-crostructure of low-carbon steel produced using different technologies

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Journal of University of Science and Technology Beijing 2006年第5期13卷 406-410页

作者： Hao Yu Yonglin Kang hongbo dong Materials Science and Engineering School University of Science and Technology Beijing Beijing 100083 China Jinan Iron ＆ Steel Group Co. Jinan 250101 China

Three kinds of specimens were produced from hot strips of similar composition and same thickness （nominal gauge 4.0 mm） but produced using different technologies, and the dislocation density of these strips was quantitatively measured by positron annihilation technique test. The dislocation morphology and evolution in microstructure of each pass for producing the 1.9 mm hot strip using CSP （compact strip production） technology were observed under an H-800 transmission electron microscope; its density was also quantitatively measured using the positron annihilation technique test, and the factors influencing the dislocation density during the production process were analyzed. The experimental results show that the dislocation density in the microstructure produced using CSP technology is higher than that in the microstructure produced using conventional technology. This result was discussed and confirmed on the basis of the finite element simulation and the theory relevant to dislocations.

关键词： compact strip production (CSP) microstructure dislocation positron annihilation technique finite element simulation

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Pd single atoms cooperate with S vacancies in ZnIn_(2)S_(4) nanosheets for photocatalytic pure-water splitting

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Science China Chemistry 2024年第3期67卷 855-861页

作者： Lin Sun Huiping Peng Fei Xue Shangheng Liu Zhiwei Hu hongbo Geng Xiaozhi Liu dong Su Yong Xu Xiaoqing Huang State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices Collaborative Innovation Center of Advanced Energy MaterialsSchool of Materials and EnergyGuangdong University of TechnologyGuangzhou 510006China Max Planck Institute for Chemical Physics of Solids Nothnitzer Strasse 40Dresden 01187Germany School of Materials Engineering Changshu Institute of TechnologyChangshu 215500China Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of SciencesBeijing 100190China Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China

Photocatalytic water splitting has emerged as a new frontier for converting solar energy to green H_(2) and value-added ***,great challenges still remain for developing efficient photocatalysts for pure water splitting without sacrificial *** this work,we demonstrate that doping hexagonal ZnIn_(2)S_(4)(ZIS) with Pd single atoms(Pd_(0.03)/ZIS) can serve as a highly efficient photocatalyst for pure water splitting to simultaneously produce H_(2) and H_(2)O_(2) without any sacrificial *** from aberration-corrected high-angle annular dark field scanning transmission electron microscopy,X-ray fine spectroscopy,insitu electron paramagnetic resonance and diffuse Fourier transform infrared spectroscopy reveal that doping ZIS with Pd single atoms facilitates the formation of S vacancies(S_(v)),where the photogenerated electrons can transfer to Pd single atoms,as a result of enhanced separation of electron-hole pairs and improved photocatalytic ***,Pd_(0.03)/ZIS displays a stoichiometric ratio of H_(2) and H_(2)O_(2) with the productivity of 1,037.9 and 1,021.4μmol g^(-1)h^(-1),respectively,which has largely outperformed pure ZIS and other reported catalysts for pure water *** work provides an efficient photocatalyst for water splitting to produce H_(2) and H_(2)O_(2),which may attract rapid interest in materials science,chemistry,and heterogeneous catalysis.

关键词： ZnIn_(2)S_(4) Pd single atom S vacancy pure water splitting H_(2)O_(2)

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防暴雨面料的基材制备及其无氟防水整理工艺研究

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浙江理工大学学报（自然科学版） 2024年第2期51卷 210-219页

作者：张明飞章淑娟乔路阳董洪波金世豪王成龙郑今欢浙江理工大学纺织科学与工程学院(国际丝绸学院) 杭州310018 浙江省现代纺织技术创新中心(鉴湖实验室) 浙江绍兴312000 浙江东进新材料有限公司浙江绍兴312000

为进一步提高户外面料的防暴雨性能,通过分析防暴雨面料基材结构对户外面料防暴雨性能的影响,优化无氟防水整理工艺,测试面料的防暴雨性能,确定防暴雨面料基材结构及无氟防水整理工艺。结果表明:在确定面料基材其他结构参数的情况下,无... 详细信息

为进一步提高户外面料的防暴雨性能,通过分析防暴雨面料基材结构对户外面料防暴雨性能的影响,优化无氟防水整理工艺,测试面料的防暴雨性能,确定防暴雨面料基材结构及无氟防水整理工艺。结果表明:在确定面料基材其他结构参数的情况下,无弹和机械纬弹面料的防暴雨性能相较于机械四面弹更优异;防暴雨性能随着纱线纤度和面料经纬密的增加而增加,面料组织结构对防暴雨性能影响较小。选定机械纬弹、纱线纤度为167 dtex、经纬密度为376×300根/(10 cm)的平纹面料作为防暴雨面料基材,对其进行防水整理,整理工艺为无氟防水剂R3质量浓度40 g/L、交联剂TF-569P质量浓度12 g/L、带液率60%,一浸一轧,焙烘温度170℃,焙烘时间90 s。经防水整理后,洗前防泼水评分为100分,耐水洗测试20次后防泼水评分仍然可保持在95分,进一步对单布进行邦迪斯门防暴雨测试,测试10 min时的防水等级可达3~4级,吸水率为12.5%,透水量为10 mL。该研究结果可为防暴雨户外运动面料的制备提供参考。

关键词：面料弹性纤度经纬密度组织结构无氟防水整理

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Can spot urine measurement be a substitute for 24-hour urine measurement to estimate sodium intake in adolescents?

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Pediatric Investigation 2021年第1期5卷 12-20页

作者： Jie dong Xiaoyuan Zhao hongbo dong Yinkun Yan Jie Mi Pediatrics Research Institute of Hunan Province Hunan Children's HospitalChangshaHunanChina Department of Epidemiology Capital Institute of PediatricsBeijingChina Department of Non-communicable Disease Management Beijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina

Importance:Several methods have been established in recent decades that allow use of spot urine to estimate dietary sodium ***,their accuracies have been controversial in ***:To validate the performance of three commonly used methods-the Kawasaki,Tanaka,and International Cooperative Study on Salt,Other Factors,and Blood Pressure(INTERSALT)***,this study explored the accuracies of the Tanaka and INTERSALT methods by using spot urine samples taken at four separate ***:Forty-one adolescents aged 14 to 16 years completed two non-consecutive 24-hour urine collections and their mean values were used as reference *** second-morning urine was used for assessment with the Kawasaki method;a casual spot urine and spot urine samples taken at four separate times(morning,afternoon,evening,and overnight)were used for assessment with the Tanaka and INTERSALT ***:The mean differences were 1801 mg,542 mg,47 mg,and-31 mg for the Kawasaki,Tanaka,INTERSALT 1(with potassium),and INTERSALT2(without potassium)methods with their required spot urine,*** proportions of relative difference levels within±10%were 4.9%for the Kawasaki method,19.5%for the Tanaka method,36.6%for the INTERSALT 1 method,and 36.6%for the INTERSALT2 ***:The INTERSALT method seemed to provide minimally biased estimations of mean population sodium intake with casual spot ***,there is a need to be cautious regarding inconsistencies in estimation among different levels of sodium *** methods assessed in this study were unable to accurately estimate sodium intake at the individual level.

关键词： Adolescents Spot urine Sodium 24-hour urine

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Abiotic stress treatment reveals expansin like A gene OfEXLA1 improving salt and drought tolerance of Osmanthus fragrans by responding to abscisic acid

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Horticultural Plant Journal 2024年第2期10卷 573-585页

作者： Bin dong Qianqian Wang Dan Zhou Yiguang Wang Yunfeng Miao Shiwei Zhong Qiu Fang Liyuan Yang Zhen Xiao hongbo Zhao School of Landscape Architecture Zhejiang Agriculture and Forestry UniversityHangzhouZhejiang 311300China Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants HangzhouZhejiang 311300China Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants HangzhouZhejiang 311300China

Sweet osmanthus(Osmanthus fragrans) is a having general approval aromatic tree in China that is widely applied to landscaping and gardening. However, the evergreen tree adaptability is limited by many environmental stresses. Currently, limited information is available regarding the genetic analysis and functional identification of expansin genes in response to abiotic stress in sweet osmanthus. In this study, a total of 29 expansin genes were identified and divided into four groups by genome-wide analysis from the sweet osmanthus genome. Transcriptome and quantitative Real-time PCR analysis showed that the cell wall-localized protein expansin-like A(OfEXLA1) gene was significantly induced by salt and drought treatment. Histochemical GUS staining of transgenic Arabidopsis lines in which GUS activity was driven with the OfEXLA1 promoter, GUS activity was significantly induced by salt, drought, and exogenous abscisic acid(ABA). In yeast, we found OfEXLA1overexpression significantly improved the population of cells compared with wild-type strains after NaCl and polyethylene glycol(PEG)treatment. Additionally, OfEXLA1 overexpression not only promoted plant growth, but also improved the salt and drought tolerance in Arabidopsis. To gain insight into the role of ABA signaling in the regulation of OfEXLA1 improving abiotic tolerance in sweet osmanthus, four differentially expressed ABA Insensitive 5(ABI5)-like genes(OfABL4, OfABL5, OfABL7, and OfABL8) were identified from transcriptome, and dualluciferase(dual-LUC) and yeast one hybrid(Y1H) assay showed that OfABL4 and OfABL5 might bind to OfEXLA1 promoter to accumulate the OfEXLA1 expression by responding to ABA signaling to improve abiotic tolerance in sweet osmanthus. These results provide the information for understanding the molecular functions of expansin-like A gene and molecular breeding of sweet osmanthus in future.

关键词： Osmanthus fragrans Abiotic tolerance Expansin Abscisic acid

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