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Phase/grain boundary assisted-3D static globularization mechanism of TC17 alloy based on the microstructure reconstruction and in-situ TEM observation

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Journal of Materials Science & Technology 2023年第26期157卷 246-261页

作者： haoyu pang Yingang Liu Jiao Luo Cong Li Hong Li School of Materials Science and Engineering Northwestern Polytechnical UniversityXi’an 710072China

Lamellar globularization in the dual-phase titanium alloy is the key to improving plasticity and ***,the mechanism has not been fully elucidated so *** this work,the role of phase/grain bound-ary in the static globularization of TC17 alloy was systematically studied by setting differentαphase con-tent before annealing through low-and high-temperature *** compression causes the parallel distribution and fragmentation of 3Dαplates and few globularαparticles are formed at a strain rate of 1 s^(-1).Post-deformation annealing promotes the static globularization ofαphase while it is affected by initialαphase *** 730°C deformation,the development ofα/αinterface by absorbing dislocations promotes the formation of globularαgrains based on the nucleation of sepa-ratedαparticles and pre-recoveryαsubgrain during subsequent ***α/α/βandα/β/βtriple junctions formed due to highαcontent with about 36%volume fraction are favorable for the further nucleation and growth of globularαgrains by reducing interface energy,forming a 3D irregularα*** nucleation and growth of theβphase dominate the microstructure evolution during subsequent an-nealing,resulting in the local dissolution of the plate and formation ofα*** 850°C deformation,theαphase tends to nucleate at theβ/β/βtriple junctions and grow into a lamellar shape along the high energyβ/βgrain boundary due to lowαcontent with about 7%volume ***αnucleation that maintains the Burgers orientation relationship(BOR)with the surroundingβphase grows along the habit plane and thickens slowly,resulting in the formation of a precipitatedαplate with a flat surface and the suppression of static *** comprehensive investigation of lamellar globularization provides guidance for optimizing the 3D microstructure and properties of dual-phase titanium alloy.

关键词： Titanium alloy Static globularization 3D microstructure Phase/grain boundary Nucleation and growth In-situ TEM heating

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Interannual variability of boreal summer intraseasonal oscillation over the northwestern Pacific influenced by the Pacific Meridional Mode

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 6-11页

作者： haoyu Zhou pang-Chi Hsu Lin Chen Yitian Qian Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environmental Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science and TechnologyNanjingChina

During the boreal summer,intraseasonal oscillations exhibit significant interannual variations in intensity over two key regions:the central-western equatorial Pacific(5°S-5°N,150°E-150°W)and the subtropical Northwestern Pacific(10°-20°N,130°E-175°W).The former is well-documented and considered to be influenced by the ENSO,while the latter has received comparatively less attention and is likely influenced by the Pacific Meridional Mode(PMM),as suggested by partial correlation analysis *** elucidate the physical processes responsible for the enhanced(weakened)intraseasonal convection over the subtropical northwestern Pacific during warm(cold)PMM years,the authors employed a moisture budget *** findings reveal that during warm PMM years,there is an increase in summer-mean moisture over the subtropical northwestern *** increase interacts with intensified vertical motion perturbations in the region,leading to greater vertical moisture advection in the lower troposphere and consequently resulting in convective *** a process is pivotal in amplifying intraseasonal convection *** observational findings were further verified by model experiments forced by PMM-like sea surface temperature patterns.

关键词： Boreal summer intraseasonal oscillation Interannual variability Pacific Meridional Mode Moisture budget analysis

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Design of a cationic accelerator enabling ultrafast ion diffusion kinetics in aqueous zinc-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 377-384页

作者： Yawei Xiao Qianqian Gu haoyu Li Mengyao Li Yude Wang National Center for International Research on Photoelectric and Energy Materials School of Materials and Energy Yunnan University Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources School of Chemistry and Chemical Engineering Hainan University College of Chemical Engineering Fuzhou University Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies Yunnan University

Aqueous zinc-ion batteries are highly favored for grid-level energy storage owing to their low cost and high safety,but their practical application is limited by slow ion *** address this,a strategy has been developed to create a cation-accelerating electric field on the surface of the cathode to achieve ultrafast Zn2+diffusion *** employing electrodeposition to coat MoS2on the surface of BaV6O16·3H2O nanowires,the directional built-in electric field generated at the heterointerface acts as a cation accelerator,continuously accelerating Zn2+diffusion into the active *** optimized Zn2+diffusion coefficient in CC@BaV-6O16·3H2O@MoS2(7.5×10～8cm2s-1) surpasses that of most reported V-based ***,MoS2serving as a cathodic armor extends the cycling life of the Zn-CC@BaV6O16·3H2O@MoS2full batteries to over 10000 *** work provides valuable insights into optimizing ion diffusion kinetics for high-performance energy storage devices.

关键词： Zinc alloys

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LOD2和LOD3细节层次下IFC至CityGML的模型转换

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扬州大学学报（自然科学版） 2017年第3期20卷 26-30页

作者：虞铭尧庞浩宇 WARDLE Emma 墨尔本大学工程学院

基于可视化编程处理软件FME(feature manipulation engine),设计了语义信息过滤和几何信息提取与处理的方法,实现了IFC(industry foundation classes)至LOD2(level of detail 2)以及LOD3细节层次下CityGML(city geography markup language)的模型转换,并通过实验验证了该方法.结果表明:本文提出的方法能够根据表达尺度的需求,有效地将结构复杂的IFC模型转换为不同细节层次的CityGML模型,实现不同比例三维地图中建筑模型的可视化,避免了重复建模.

关键词： IFC CityGML FME 建筑信息模型三维地理信息系统空间数据互操作

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Morphology engineering of ZnO micro/nanostructures under mild conditions for optoelectronic application

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 498-503页

作者： Liang Chu haoyu Shen Hudie Wei Hongyu Chen Guoqiang Ma Wensheng Yan Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China

Zinc oxide(ZnO)serves as a crucial functional semiconductor with a wide direct bandgap of approximately 3.37 *** reaction is commonly used in the synthesis of ZnO micro/nanostructures,given its low cost,simplicity,and easy ***,ZnO morphology engineering has become desirable through the alteration of minor conditions in the reaction process,particularly at room *** this work,ZnO micro/nanostructures were synthesized in a solution by varying the amounts of the ammonia added at low temperatures(including room temperature).The formation of Zn^(2+)complexes by ammonia in the precursor regulated the reaction rate of the morphology engineering of ZnO,which resulted in various structures,such as nanoparticles,nanosheets,microflowers,and single ***,the obtained ZnO was used in the optoelectronic application of ultraviolet detectors.

关键词： morphology engineering low temperature ZnO nanosheets microflowers ultraviolet detector

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InNi alloy-induced interface effect promoting the parallel electron transfer: improved photothermal catalytic CO2 hydrogenation

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Science China Chemistry 2025年

作者： haoyu Zhang Yuhang Li Yu Nie Xinyu Dou Haodong Ji Xin Tan Jinhua Ye Tao Yu School of Chemical Engineering and Technology Tianjin University Eco-environment and Resource Efficiency Research Laboratory School of Environment and Energy Peking University Shenzhen Graduate School School of Environmental Science and Engineering Tianjin University Advanced Catalytic Materials Research Center School of Materials Science and Engineering Tianjin University Research Center for Solar Driven Carbon Neutrality Hebei University

Photothermal catalytic CO2hydrogenation is an effective means of utilizing carbon ***,it is severely limited in terms of kinetics and ***,it is necessary to meticulously design catalysts to solve this ***,a sandwich structured NiO@InNi/In2O3is designed to intrinsically regulate the direction of photogenerated carriers transfer,resulting in a CO yield of 42.97 mmol g-1h-1(1290.3μmol h-1) with a selectivity near to 100%.InNi alloy favors the collection of photogenerated carriers by the parallel way and enhancement of the adsorption and activation of *** grown on the surface of InNi alloy not only improves the adsorption of H2and provides sufficient H+for the reaction,but also makes InNi alloy more stable during the reaction *** photothermal effect caused by In2O3accelerates the transfer of photogenerated carriers and increases the surface temperature of the catalyst,thereby synergistically promoting the reaction from a kinetic *** work ameliorates the kinetic and thermodynamic limitations of the photothermal catalytic CO2hydrogenation process through rationally designing the electron transfer direction of the sandwich structured catalysts to parallel way.

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某喷油器喷孔内流穴蚀风险及疲劳寿命分析

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机械设计与制造工程 2022年第3期51卷 13-17页

作者：许磊张翼张宇庞浩宇宋猛中北大学能源与动力工程学院山西太原030051

为改善喷油器喷孔长期运行容易引起的穴蚀破坏问题,基于计算流体力学、空化穴蚀疲劳理论,通过Fluent软件中的UDF模块引入单气泡破裂对壁面影响经验公式,建立喷油器喷孔内流的经验公式穴蚀风险仿真模型。然后引入Workbench中Ncode模块针... 详细信息

为改善喷油器喷孔长期运行容易引起的穴蚀破坏问题,基于计算流体力学、空化穴蚀疲劳理论,通过Fluent软件中的UDF模块引入单气泡破裂对壁面影响经验公式,建立喷油器喷孔内流的经验公式穴蚀风险仿真模型。然后引入Workbench中Ncode模块针对喷孔寿命进行分析,研究不同喷孔几何形状、不同最大针阀升程对喷油器喷孔寿命的影响。经R_(rs)模型检验可知,经验公式穴蚀风险仿真模型具有可靠性。穴蚀损伤较大区域集中于喷孔入口处,相比于喷孔圆锥度的增加,最大针阀升程的降低对喷孔内壁面寿命所造成影响较小,故可优先调整喷孔的圆锥度以提高喷嘴的寿命。

关键词：喷油器喷嘴疲劳寿命空化穴蚀

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智能超表面辅助的通感一体化性能优化

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中山大学学报（自然科学版）（中英文） 2025年第1期64卷 83-92页

作者：庄宏成卢浩宇钭奕煊陈曾平庞高昆中山大学电子与通信工程学院广东深圳518107 荣耀终端有限公司广东深圳518040

为了解决因障碍物等遮挡导致的覆盖空洞和探测精度下降问题,提出了一种基于栅格化的智能超表面辅助的通感一体化优化方法。首先,建模了最小化均方位置误差问题,将弱通感区域和RIS可能部署区域栅格化以降低计算难度,并采用粒子群优化算... 详细信息

为了解决因障碍物等遮挡导致的覆盖空洞和探测精度下降问题,提出了一种基于栅格化的智能超表面辅助的通感一体化优化方法。首先,建模了最小化均方位置误差问题,将弱通感区域和RIS可能部署区域栅格化以降低计算难度,并采用粒子群优化算法和交替优化算法联合优化智能超表面期望反射角角度和部署位置。最后,引入探测需求因子,建模通感性能联合优化问题,并分析了探测需求因子对系统通感性能的影响。仿真结果显示:(1)相较于仅优化期望反射角,联合优化智能超表面的期望反射角和部署位置的方案,在平均信噪比仅有略微下降的情况下,可显著降低平均均方位置误差,平均均方位置误差降低10倍左右;(2)不同尺寸大小的智能超表面会对其最佳部署位置有影响;(3)联合优化智能超表面的期望反射角和部署位置提高了探测精度,最大化了通感整体性能。

关键词：智能超表面通感一体化 6G 期望反射角部署位置

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从“虚气留滞夹火”探讨应激敏化所致抑郁症辨治思路

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中国中医药信息杂志 2024年第1期31卷 11-14页

作者：陈旭曹竟贾茜麟郗凌云白杨庞浩宇洪霞北京中医药大学北京100029 中国中医科学院西苑医院北京100091

中医学认为“虚气留滞夹火”是抑郁症的核心病机,具有“虚气”为本,本虚在脾、标虚在脑,“留滞”为标,气滞、痰凝、血瘀留滞脑络,“夹火”灼脑络,郁生火热、火生虚滞的病机特点和演变规律。本文基于现代医学对抑郁症“应激敏化”发病机... 详细信息

中医学认为“虚气留滞夹火”是抑郁症的核心病机,具有“虚气”为本,本虚在脾、标虚在脑,“留滞”为标,气滞、痰凝、血瘀留滞脑络,“夹火”灼脑络,郁生火热、火生虚滞的病机特点和演变规律。本文基于现代医学对抑郁症“应激敏化”发病机制的认识,探讨其与中医学“虚气留滞夹火”核心病机的潜在关联,提出补虚、通滞、泻火是抑郁症的基本治法,通过抑制炎症反应,改善神经元及小胶质细胞的应激敏化状态,发挥中药复方多靶点及多维度的治疗特性。

关键词：抑郁症应激敏化虚气留滞夹火补虚通滞泻火

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基于“壮火食气”理论探讨双相情感障碍的辨治思路

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北京中医药 2024年第10期43卷 1159-1163页

作者：贾茜麟陈旭庞浩宇曹竟郗凌云白杨洪霞北京中医药大学北京100029 中国中医科学院研究生院北京100700 中国中医科学院西苑医院脑病科北京100091

双相情感障碍(BD)是临床难治性精神疾病之一,以循环、交替发作的抑郁和躁狂或轻躁狂为主要表现。洪霞教授认为“壮火食气”是BD的核心病机,BD患者长期情志不舒,气机郁结,久郁则从阳火化而成壮火,此时发为躁狂。壮火食气耗气,火随气而外... 详细信息

双相情感障碍(BD)是临床难治性精神疾病之一,以循环、交替发作的抑郁和躁狂或轻躁狂为主要表现。洪霞教授认为“壮火食气”是BD的核心病机,BD患者长期情志不舒,气机郁结,久郁则从阳火化而成壮火,此时发为躁狂。壮火食气耗气,火随气而外散,此时气虚而郁仍滞,发为抑郁。若再受环境、药食、七情引动亦可郁而生火,由郁转躁。故基于此提出“泻壮火”“益虚气”分治躁狂相与抑郁相,“补中兼清”以断循环,并将“畅气机”贯穿治疗始末,使壮火消、虚气壮、气机畅、郁滞通,循环得断而疾病自然向愈。

关键词：双相情感障碍壮火食气精神疾病泻壮火益虚气

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