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Effect of V and N on Microstructures and Properties of Grade-70 Tire Cord Steel during Cold Drawing

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Journal of Iron and Steel Research International 2015年第2期22卷 171-178页

作者： Hong-yu LIU Bao-yi WAN xiao-yu zeng Chong LIN Hong-jun WANG College of Science Wuhan University of Science and Technology Hubei Province Key Laboratory of Systems Science in Metallurgical Process Department of Physics and Astronomy Clemson University

Commercial grade-70 tire cord steel was microalloyed with V and N to explore the possibility of substitu- ting V for C and the effect of V and N on cementite dissolution during cold drawing process. Tensile strength, elon- gation and torsion laps of cold-drawn wires were determined. Microstructures of secondary phases were studied by transmission electron microscopy （TEM） and energy dispersive spectroscopy （EDS）. Saturation magnetization was measured by using a vibrating sample magnetometer （VSM） to evaluate cementite dissolution during cold drawing process. Experimental results showed that with the increase of V content, tensile strength increased, elongation slightly decreased, and the torsion laps of the cold-drawn wires decreased. Results also showed that with the increase of N content, a peak （increasing first and then decreasing） appeared in the tensile strength graph, and an increase of elongation and a decrease of torsion laps of the cold-drawn wires occured. N is soluble in ferrite when its content is low. The increase in the content of N to 82 × 10^-6 will result in the precipitation of the V-containing secondary pha- ses. Also, cementite tended to be stable during cold drawing process with the increase of V and N contents. Grade-80 tire cord steel can be replaced by grade 70 tire cord steel microalloyed with 0. 086 mass% V.

关键词： tire cord steel cold-drawn wire cementite dissolution vanadium nitrogen

Effects of congenital ptosis on the refractive development of eye and vision in children

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International Journal of Ophthalmology(English edition) 2020年第11期13卷 1788-1793页

作者： xiao-yu zeng Jia-Xing Wang xiao-Li Qi Xue-Han Qian Nan Wei Tianjin Medical University Eye Institute Tianjin Medical University Eye HospitalCollege of Optometry and OphthalmologyTianjin Medical UniversityTianjin 300384China Department of Ophthalmology Emory University School of MedicineAtlantaGeorgia 30322USA

AIM:To investigate the influence of unilateral congenital ptosis on the development of the eye and vision in ***:In this prospective observational study,41 patients with unilateral congenital ptosis were enrolled(age range 3-15y).The blepharoptosis was divided into 3 subgroups according to the margin reflex distance-1(MRD-1),including mild group(MRD-1>2 mm),moderate group(0

关键词： unilateral congenital ptosis axial length AL/CR ratio amblyopia

Organoid-derived human retinal progenitor cells promote early dedifferentiation of Müller glia in Royal College of Surgeons rats

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International Journal of Ophthalmology(English edition) 2023年第4期16卷 483-498页

作者： Qiang Guo yu-xiao zeng Shu-Dong Huang Ting Zou Zheng-Qin Yin Southwest Hospital/Southwest Eye Hospital Third Military Medical University(Army Medical University)Chongqing 400038China Key Lab of Visual Damage and Regeneration&Restoration of Chongqing Chongqing 400038China

AIM:To explore whether the subretinal transplantation of retinal progenitor cells from human embryonic stem cell-derived retinal organoid(h ERO-RPCs)could promote Müller glia dedifferentiation and transdifferentiation,thus improving visual function and delaying retinal degenerative ***:h ERO-RPCs were subretinally transplanted into Royal College of Surgeons(RCS)***(ERG)recording was performed at 4 and 8wk postoperation to assess retinal *** immunofluorescence,the changes in outer nuclear layer(ONL)thickness and retinal Müller glia were explored at 2,4,and 8wk *** verify the effect of h ERO-RPCs on Müller glia in vitro,we cocultured h ERO-RPCs with Müller glia with a Transwell *** coculture,Ki67 staining and quantitative polymerase chain reaction(q PCR)were performed to measure the proliferation and m RNA levels of Müller glia *** migration experiment was used to detect the effect of h ERO-RPCs on Müller glial *** between two groups were performed by the unpaired Student’s t-test,and comparisons among multiple groups were made with one-way ANOVA followed by Tukey’s multiple comparison ***:The visual function and ONL thickness of RCS rats were significantly improved by transplantation of h ERO-RPCs at 4 and 8wk *** addition to inhibiting gliosis at 4 and 8wk postoperation,h ERO-RPCs significantly increased the expression of dedifferentiation-associated transcriptional factor in Müller glia and promoted the migration at 2,4 and 8wk postoperation,but not the transdifferentiation of these cells in RCS *** vitro,using the Transwell system,we found that h ERO-RPCs promoted the proliferation and migration of primary rat Müller glia and induced their dedifferentiation at the m RNA ***:These results show that h ERO-RPCs might promote early dedifferentiation of Müller glia,which may provide novel insights into the mechanisms of stem cell

关键词： retinal degeneration retinal organoid retinal progenitor cells subretinal transplantation Muller glia dedifferentiation

Application of blunt dissection in ESD of a gastric submucosal tumor

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World Journal of Gastroenterology 2014年第21期20卷 6698-6700页

作者： Zong-Quan Wen Guang-Yao Wu Shao-Ping yu xiao-Dong Lin Song-Hu Li Xian-Guang Huang Fu Zhang xiao-yu zeng Hai-Yan Huang Ai-Mei Li Department of Gastroenterology Dongguan Kanghua Hospital Department of Endoscopy Centre Dongguan Kanghua Hospital

We performed endoscopic submucosal dissection of a gastric fundus *** was difficult to strip the tumor completely due to space limitation,and we used blunt dissection to remove the tumor quickly and ***,the basal area of the 2.5 cm submucosal tumor located in the gastric fundus was cut open,and the mucosa was *** tumor was difficult to peel,therefore,a snare was used and the tumor was pulled and tightened *** electronic coagulation was used during the *** tumor was then bluntly *** method ensured rapid and complete removal of the tumor.

关键词： Blunt dissection Endoscopic submucosal dissection Gastric fundus submucosal tumor

Recent Strategies and Advances in Hydrogel‑Based Delivery Platforms for Bone Regeneration

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Nano-Micro Letters 2025年第3期17卷 389-439页

作者： xiao Wang Jia zeng Donglin Gan Kun Ling Mingfang He Jianshu Li Yongping Lu Scientific and Technological Innovation Center for Biomedical Materials and Clinical Research Guangyuan Key Laboratory of Multifunctional Medical HydrogelGuangyuan Central HospitalGuangyuan 628000People’s Republic of China Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Bio‑Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023People’s Republic of China College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065People’s Republic of China

Bioactive molecules have shown great promise for effectively regulating various bone formation processes,rendering them attractive therapeutics for bone ***,the widespread application of bioactive molecules is limited by their low accumulation and short half-lives in *** have emerged as ideal carriers to address these challenges,offering the potential to prolong retention times at lesion sites,extend half-lives in vivo and mitigate side effects,avoid burst release,and promote adsorption under physiological *** review systematically summarizes the recent advances in the development of bioactive molecule-loaded hydrogels for bone regeneration,encompassing applications in cranial defect repair,femoral defect repair,periodontal bone regeneration,and bone regeneration with underlying ***,this review discusses the current strategies aimed at improving the release profiles of bioactive molecules through stimuli-responsive delivery,carrier-assisted delivery,and sequential ***,this review elucidates the existing challenges and future directions of hydrogel encapsulated bioactive molecules in the field of bone regeneration.

关键词： Hydrogel Bone regeneration Bioactive molecules Drug delivery Nano-/microscale carriers

一类p-Kirchhoff方程基态解的存在性与唯一性

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数学学报（中文版） 2019年第6期62卷 879-888页

作者：王壮壮曾小雨武汉理工大学理学院

对于下面p-Kirchhoff型泛函Ep(u)=a/p∫Rn|■u|pdx+b/2p(∫Rn|■u|pdx)2-1/s∫Rn||u|sdx,我们证明了约束在流形Sc:={u∈W1,p(Rn):∫Rn}|u|pdx=cp}上全局极小点或山路型临界点的存在性与唯一性,且这些临界点是某个Gagliardo-Nirenberg不等式的最优化子,特别当p∈(1,2]时,它们在不计平移意义下是唯一的.我们扩展了已有文献中p=2的情形的相关结果.

关键词： Lp归一化临界点 p-Kirchhoff方程唯一性

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Beta在线匹配

电子学报 2017年第5期45卷 1268-1271页

作者：黄晓宇曾青松杨磊华南理工大学经济与贸易学院广东广州510006 广州番禺职业技术学院信息工程学院广东广州511483

二部图的在线匹配问题最早由Karp等人在1990年提出,该问题在近年得到了广泛的关注,在日常生活中有大量的应用.本文引入了Beta分布作为二部图节点间的邻接关系的统计先验,提出了最大化节点的预留匹配能力准则作为在线匹配策略的评价度量... 详细信息

二部图的在线匹配问题最早由Karp等人在1990年提出,该问题在近年得到了广泛的关注,在日常生活中有大量的应用.本文引入了Beta分布作为二部图节点间的邻接关系的统计先验,提出了最大化节点的预留匹配能力准则作为在线匹配策略的评价度量,设计了在线匹配算法BetaOM,并证明了该算法的正确性.本文把BetaOM分别应用于基于人造数据和真实数据的在线匹配问题,实验的结果显示该算法优于经典的Greedy算法和Ranking算法.

关键词：二部图在线匹配 Beta分布随机优化

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： xiao Xiang Feng Gao yu-Gui Peng Peng Wu Zong-Lin Li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

Experimental Observing Damage Evolution in Cement Pastes Exposed to External Sulfate Attack by in situ X-ray Computed Tomography

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 164-170页

作者： WU Min CAO Kailei xiao Weirong yu Zetai CAO Jierong DING Qingjun LI Jinhui China Railway Construction Corporation Harbour and Channel Engineering Bureau Group Co. LTDZhuhai 519000China Con-struction Headquarters of Zhoushan Liuheng Bridge Phase II Project Zhoushan 316000China China Railway Construction Bridge En-gineering Bureau Group Co. LTDTianjin 300000China State Key Laboratory of Silicate Material for Architecture(Wuhan University of Technology) Wuhan 430070China College of Materials Science and Engineering Wuhan Textile UniversityWuhan 430200China

The paper presents experimental investigation results of crack pattern change in cement pastes caused by external sulfate attack(ESA).To visualize the formation and development of cracks in cement pastes under ESA,an X-ray computed tomography(X-ray CT)was used,i e,the tomography system of Zeiss Xradia 510 *** results indicate that X-CT can monitor the development process and distribution characteristics of the internal cracks of cement pastes under ESA with attack *** addition,the C3A content in the cement significantly affects the damage mode of cement paste specimens during sulfate *** damage of ordinary Portland cement(OPC)pastes subjected to sulfate attack with high C3A content are severe,while the damage of sulfate resistant Portland cement(SRPC)pastes is much smaller than that of OPC ***,a quadratic function describes the correlation between the crack volume fraction and development depth for two cement pastes immermed in sulfate solution.

关键词： concrete external sulfate attack damage evolution situ X-ray computed tomography