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Journal of Materials Science & Technology 2023年第25期156卷 118-128页

作者： Z.C.Meng M.M.Yang A.H.Feng S.J.qu F.Zhao L.Yang J.H.Yao Y.Yang Q.B.Fan H.Wang Interdisciplinary Centre for Additive Manufacturing (ICAM) School of Materials and ChemistryUniversity of Shanghai for Science and TechnologyShanghai 200093China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China School of Materials Science and Engineering Tongji UniversityShanghai 201804China Academy for Advanced Interdisciplinary Studies Southern University of Science and TechnologyShenzhen 518055China National Key Laboratory of Science and Technology on Materials Under Shock and Impact School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China beijing Institute of Technology Chongqing Innovation Center Chongqing 401135China

The interaction between{112}deformation twinning and grain boundary in coaxial polycrystalline tantalum under shock compression was studied with molecular dynamics simulation under different grain pair misorientation angles(MA)and geometric compatibility factor(m’).Generally,in the coaxial polycrystal,the value of MA determines the occurrence of twin transfer(TT)or twin blockage(Tb),i.e.,twin transfer occurs at MA≤29°with twin blockage otherwise.Under TT,the value of m’affects the selection of twin variants.,i.e.,the twin system with a larger m’is easier to active.The morphology of twin pairs is ruler-shaped and lenticular under TT and Tb,respectively,with different thickening mechanisms,including grain boundary dislocation emission.

关键词： Plasticity Grain boundary Twin Atomistic simulation Tantalum

A review on biodegradable biliary stents: materials and future trends

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bioactive Materials 2022年第11期7卷 488-495页

作者： Ge Song Hugh q.Zhao qing Liu Zhongyong fan beijing Advanced Medical Technologies Ltd Inc26 Yongwang West RoadBuilding 11DaxingBeijing102609PR China The Institute for Translational Nanomedicine Shanghai East HospitalThe Institute for Biomedical Engineering&Nano ScienceTongji University School of MedicineShanghai200092PR China Department of Materials Science Fudan UniversityShanghai200433PR China

biliary stricture is defined as the reduction and narrowing of the bile duct lumen, which can be caused by many factors such as cancer and inflammation. biliary stent placement can effectively alleviate benign and malignant biliary strictures. However, the commonly used plastic or metallic biliary stents are far from ideal and do not satisfy all clinical requirements,although several types of biodegradable biliary stents have been developed and used clinically. In this review, we summarized current development status of biodegradable stents with the emphasis on the stent materials. We also presented the future development trends based on the published literature.

关键词： biodegradable biliary stent biliary strictures Polydioxanone Poly(L-lactic acid) Drug-eluting stent

Potential role of the protein interactome in translating TCM theory and clinical practice into modern biomedical knowledge

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Chinese Journal of Natural Medicines 2024年第5期22卷 385-386页

作者： CHEN q. fan X. Pharmaceutical Informatics Institute College of Pharmaceutical Sciences Zhejiang University Hangzhou 310058 China National Key Laboratory of Chinese Medicine Modernization Innovation Center of Yangtze River Delta Zhejiang University Jiaxing 314100 China

With the awarding of the 2015 Nobel Prize in Physiology or Medicine to Chinese pharmacologist Tu Youyou,and the significant contributions of traditional Chinese medicine(TCM)for coronavirus disease 2019(COVID-19),TCM has garnered increasing attention and interest globally.Although advanced research progress has been made in the efficacy research,mechanism elucidation and target prediction of TCM in recent years[1].

关键词： Protein interactome Therapeutic effectiveness Traditional Chinese medicine

二甲双胍治疗病人对比剂管理指南的评价：共识、争议和差异

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国际医学放射学杂志 2023年第6期 747-748页

作者： Y.q.fan q.q.Cai S.H.Chen b.Zhang Y.X.Zhang J.H.Zhen 王倩

摘要目的现行的关于二甲双胍与对比剂同时使用的各指南规定间存在较大差异。该研究旨在评价这些指南，并总结各指南推荐规范之间的异同点。方法重点检索2018—

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Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel

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Journal of Materials Science & Technology 2019年第10期35卷 2213-2219页

作者： Y.H.fan b.Zhang J.q.Wang E.-H.Han W.Ke Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

The effect of grain size(in the range from 4 μm to 12 μm) on the hydrogen embrittlement(HE) of 304 austenitic stainless steel(ASS) was studied. HE susceptibility result shows that HE resistance increases with grain refinement. Electron backscattered diffraction kernel average misorientation(EbSD-KAM)mapping shows that the strain localization can be mitigated by grain refinement. Hence, strain localization sites which act as highways for hydrogen diffusion and preferred crack initiation sites can be reduced along with grain refinement, leading to a high HE resistance. Meanwhile, grain size shows no influence on the strain induced martensite(SIM) transformation during the hydrogen charging slow strain tensile test(SSRT). Hence, the SIM formed during hydrogen charging SSRT is not responsible for the different HE resistance of 304 ASSs with various grain sizes. Hydrogen diffusion is supposed to be controlled by a competition between short-circuit diffusion along random grain boundary(RGb) and hydrogen trapping at dislocations, leading to a maximum hydrogen diffusion coefficient in the 304 ASS with an average grain size of 8 μm.

关键词： Stainless steel Grain refinement Hydrogen embrittlement SEM EbSD

Stochastic Accelerated Alternating Direction Method of Multipliers for Hedging Communication Noise in Combined Heat and Power Dispatch

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CSEE Journal of Power and Energy Systems 2023年第2期9卷 696-706页

作者： Zhigang Li Xinyu Liang fan Hu Wen Xiong Renbo Wu J.H.Zheng q.H.Wu School of Electric Power Engineering South China University of TechnologyGuangzhou 510641China Guangzhou Power Supply bureau Guangdong Power Grid Co.LtdGuangzhouChina

Combined heat and power dispatch(CHPD)opens a new window for increasing operational flexibility and reducing wind power curtailment.Electric power and district heating systems are independently controlled by different system operators;therefore,a decentralized solution paradigm is necessary for CHPD,in which only minor boundary information is required to be exchanged via a communication network.However,a nonideal communication environment with noise could lead to divergence or incorrect solutions of decentralized algorithms.To bridge this gap,this paper proposes a stochastic accelerated alternating direction method of multipliers(SA-ADMM)for hedging communication noise in CHPD.This algorithm provides a general framework to address more types of constraint sets and separable objective functions than the existing stochastic ADMM.Different from the single noise sources considered in the existing stochastic approximation methods,communication noise from multiple sources is addressed in both the local calculation and the variable update stages.Case studies of two test systems validate the effectiveness and robustness of the proposed SAADMM.

关键词： Alternating direction method of multipliers combined heat and power dispatch communication noise decentralized optimization

Reduction effect of final-pass heavy reduction rolling on the texture development,tensile property and stretch formability of ZWK100 alloy plates

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Journal of Materials Science & Technology 2022年第16期111卷 211-223页

作者： b.q.Shi L.Y.Zhao X.L.Shang b.H.Nie D.C.Chen C.q.Li Y.q.Cheng School of Materials Science and Hydrogen Energy Foshan UniversityFoshan 528000China School of Materials and Energy Guangdong University of TechnologyGuangzhouGuangdong 510006China GD Midea Air-Conditioning Equipment Co. Ltd.Foshan 528311China Guangdong Key Laboratory of Hydrogen Energy Technology Foshan 528000China YunFu(Foshan)R&D Center of Hydrogen Energy Standardization Yunfu 527326China

Obviously planar anisotropy due to‘TD split’orthotropic texture(TD indicates Transverse direction)always exist in the Rare-earth(RE)or Ca containing Mg alloy sheets,which is likely caused by the lowreduction rolling(and annealing)as revealed in our previous research.In this work,the as-cast billets of a ZWK100 alloy were subjected to final-pass heavy reduction rolling(FHRR)at 500°C with different reductions(30%-70%)after rough rolling,aiming to investigate the reduction effect on the microstructure and texture formation.The results show that FHRR with higher reductions above 50%is in favor of shear banding formation but has little effect on the as-deformed texture components,and the excellent formability with single-pass reduction up to 70%is mainly ascribed to the activation of prismatic slip.FHRR with reduction above 50%and annealing can generate uniform grain structures of~10μm and symmetrical‘oblique-line split’texture in(0001)pole figures,with basal poles tilting by about 50°from ND(Normal direction)towards some oblique-line of TD and RD(Rolling direction)as well as uniform distribution of counter lines as an annular shape,resulting in excellent elongation to failure of~50%and ultra-low planar anisotropyΔr_of~0.1 and high stretch formability(Erichsen value:8.1).The formation‘oblique-line split’texture in(0001)pole figures is mainly correlated with the preferred growth tendency of grains with■//RD,which was suggested to relate to the high mobility of some special boundaries such as 40°-45°■.The influences of starting textures on the mechanical properties,planar anisotropy and related deformation modes,as well as their correlations with the stretch formability were comparatively investigated with the‘TD split’orthotropic texture as a counterpoint.

关键词： Magnesium alloys Texture Plane anisotropy Stretch formability Rolled sheets

Decentralized State Estimation of Combined Heat and Power System Considering Communication Packet Loss

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Journal of Modern Power Systems and Clean Energy 2020年第4期8卷 646-656页

作者： Wenjian Zheng Zhigang Li Xinyu Liang Jiehui Zheng q.H.Wu fan Hu School of Electric Power Engineering South China University of TechnologyGuangzhou 510641China Guangzhou Power Supply Guangdong Power Grid Co.Ltd.Guangzhou 510000China

In order to obtain an accurate state estimation of the operation in the combined heat and power system,it is necessary to carry out state estimation.Due to the limited information sharing among various energy systems,it is practical to perform state estimation in a decentralized manner.However,the possible communication packet loss is seldomly considered among various energy systems.This paper bridges this gap by proposing a relaxed alternating direction method of multiplier algorithm.It can also improve the computation efficiency compared with the conventional alternating direction of the multiplier algorithm.Case studies of two test systems are carried out to show the validity and superiority of the proposed algorithm.

关键词： Alternating direction of multiplier algorithm combined heat and power system communication packet loss decentralized optimization state estimation

bifurcation analysis of a discrete Phytoplankton-Zooplankton model with linear predational response function and toxic substance distribution

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International Journal of biomathematics 2023年第4期16卷 81-101页

作者： A.q.Khan F.Nazir M.b.Almatrafi Departmentof Mathematics University of Azad Jammu and Kashmir Muzaffarabad 13100 Pakistan Department of Mathematics College of Science Taibah University Al-Madinah Al-MunawarahSaudi Arabia

Phytoplanktons are drifting plants in an aquatic system.They provide food for marine animals and are compared to terrestrial plants in that having chlorophyll and carrying out photosynthesis.Zooplanktons are drifting animals found inside the aquatic bodies.For stable aquatic ecosystem,the growth of both Zooplankton and Phytoplankton should be in steady state but in previous eras,there has been a universal explosion in destructive Plankton or algal blooms.Many investigators used various mathematical methodologies to try to explain the bloom phenomenon.So,in this paper,a discretized two-dimensional Phytoplankton-Zooplankton model is investigated.The results for the existence and uniqueness,and conditions for local stability with topological classifications of the equilibrium solutions are determined.It is also exhibited that at trivial and semitrivial equilibrium solutions,discrete model does not undergo fip bifurcation,but it undergoes Neimark-Sacker bifurcation at interior equilibrium solution under certain conditions.Further,state feedback method is deployed to control the chaos in the under consideration system.The extensive numerical simulations are provided to demonstrate theoretical results.

关键词： Discrete model numerical simulation bifurcations chaos

免疫炎症反应和内皮祖细胞在肉鸡肺血管丛样病变形成中的作用（英文）

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Journal of Zhejiang University-Science b(biomedicine & biotechnology) 2017年第1期18卷 59-69页

作者： Xun TAN fan-guo JUAN Ali q.SHAH Department of Veterinary Medicine College of Animal Sciences Zhejiang University Hangzhou 310058 China

目的:肺血管丛样病变是重度肺动脉高压(PAH)病人的特征病变,病变血管周围常伴有单个核细胞浸润。肺血管丛样病变在常用实验动物上难以复制,但可在肉鸡(一种生长快速的肉用型鸡)肺脏中自发形成。内皮祖细胞(EPCs)在组织再生和血管修复过... 详细信息

目的:肺血管丛样病变是重度肺动脉高压(PAH)病人的特征病变,病变血管周围常伴有单个核细胞浸润。肺血管丛样病变在常用实验动物上难以复制,但可在肉鸡(一种生长快速的肉用型鸡)肺脏中自发形成。内皮祖细胞(EPCs)在组织再生和血管修复过程中发挥重要作用。本研究以肉鸡为模型,探讨EPCs与肺血管丛样病变形成之间的关系。创新点:证实EPCs参与了肺血管丛样病变的形成过程,并揭示了导致EPCs功能障碍的免疫学机制。方法:采集1~4周龄肉鸡肺组织,常规石蜡切片,观察肺血管丛样病变的形成情况;采用免疫组化法检测EPCs表面标志CD133和VEGFR-2的表达以及肝细胞生长因子(HGF)的表达;分离培养晚期EPCs,建立EPCs/淋巴细胞共培养体系,并在共培养体系中添加20 ng/ml HGF,观察EPCs增殖、凋亡和体外管样结构形成的变化。结论:在不同周龄的肉鸡肺组织中均可观察到处于不同发展阶段的肺血管丛样病变(图1)。早期的丛样病变主要由EPCs(CD133^+和VEGFR-2^+细胞)构成,HGF在病变实体中高表达(图2)。淋巴细胞共培养显著促进EPCs凋亡(图5),并能阻断HGF诱导的EPCs存活和体外管样结构形成(图6)。综上所述,肺血管丛样病变的形成可能与局部免疫炎症反应诱导EPCs凋亡并下调EPCs对促血管生成因子的反应性有关。

关键词：丛样病变内皮祖细胞免疫反应肝细胞生长因子肉鸡