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Quantum XY Spin Glass with Ferromagnetic Coupling in External Field

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Chinese Physics Letters 1998年第12期15卷 919-921页

作者： shang yu-min YAO Kai-lun Department of Physics Huazhong University of Science and TechnologyWuhan 430074

The quantum XY spin glass model with ferromagnetic coupling in an external field is investigated *** susceptibility exhibits the typical spin glass feature,the cusp of the transverse susceptibility corresponding to the phase transition is shifted to lower temperature by increasing *** addition to the crossover feature observed in CuMn,the specific heat exhibits the 2-dimensional Ising model-like feature.

关键词： field. susceptibility ferromagnetic

Properties of Quantum XY Spin Glass in Longitudinal Field

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Chinese Physics Letters 2001年第4期18卷 595-597页

作者： shang yu-min YAO Kai-Lun Department of Physics Huazhong University of Science and TechnologyWuhan 430074

By using the generalized static replica symmetry approximation,the quantum XY spin-glass model in a longitudinal field is *** thermodynamic quantities,spin-glass and self-interaction order parameters are calculated *** local susceptibility depending on temperature has the typical spin-glass plateau characteristic;the specific heat against temperature display a crossover feature which was discovered experimentally in the CuMn sample by Brodale et al.(***.31-34(1983)1331)and cusps sharper than that in the model with the Dzyaloshinskii-Moriya interaction.

关键词： interaction. symmetry quantities

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海上移动平台航行安全设备配备要求

船海工程 2020年第S1期49卷 48-53页

作者：于尚民中国船级社天津分社天津300457

针对业内忽视移动平台航行安全设备配备要求的现状,以中国旗移动平台为例,在对相关公约、法规详细梳理的基础上,分阶段对目前移动平台航行安全设备配备最常见问题进行分析,并对我国及其他船旗国特殊要求进行对比。

关键词：移动平台航行安全设备 MODU CODE 规则

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自升式移动平台齿轮齿条升降装置检验要求

船海工程 2022年第S1期51卷 88-92,96页

作者：于尚民中国船级社天津分社天津300457

考虑到自升式移动平台升降装置检验标准不统一、可操作性差,深入检查需要依靠原始设备制造信息,对比各船级社的检验要求,以某典型齿轮齿条升降装置为例,分析正常磨损及失效判定标准,并总结齿轮齿条升降装置定期以及移位期间应检查项目。

关键词：移动平台升降装置检验要求齿轮磨损

Unraveling the significance of cobalt on transformation kinetics,crystallography and impact toughness in high-strength steels

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International Journal of minerals,Metallurgy and Materials 2025年第2期32卷 380-390页

作者： Yishuang yu Jingxiao Zhao Xuelin Wang Hui Guo Zhenjia Xie Chengjia shang Collaborative Innovation Center of Steel Technology University of Science and Technology BeijingBeijing 100083China School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China

This work reveals the significant effects of cobalt(Co)on the microstructure and impact toughness of as-quenched highstrength steels by experimental characterizations and thermo-kinetic *** results show that the Co-bearing steel exhibits finer blocks and a lower ductile-brittle transition temperature than the steel without ***,the Co-bearing steel reveals higher transformation rates at the intermediate stage with bainite volume fraction ranging from around 0.1 to *** improved impact toughness of the Co-bearing steel results from the higher dense block boundaries dominated by the V1/V2 variant ***,the addition of Co induces a larger transformation driving force and a lower bainite start temperature(BS),thereby contributing to the refinement of blocks and the increase of the V1/V2 variant *** findings would be instructive for the composition,microstructure design,and property optimization of high-strength steels.

关键词： high-strength steel cobalt transformation kinetics crystallography impact toughness

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海上固定平台临时关停检验要求

船海工程 2019年第A1期48卷 27-31页

作者：于尚民中国船级社天津分社天津300457

在面对相关法律法规、技术要求欠缺的情况下,结合渤海海域某全国首例临时关停平台,讨论海上固定平台临时关停检验要求和具体实施方案,并对要点进行解析。

关键词：海上固定平台临时关停检验要求

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

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De novo synthesis of atropisomeric benzofurans via Cu/SPDO complex catalyzed asymmetric formal [3 + 2] annulation

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Science China Chemistry 2025年第1期68卷 174-180页

作者： Fan-Xiao Meng Xing-yu Wang Ka Lu Ju-Song Yang Fu-min Zhang Ai-Jun Ma Bao Du Yong-Qiang Tu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University School of Chemistry and Chemical Engineering Shanghai Jiao Tong University School of Biotechnology and Health Sciences Wuyi University

Herein, the de novo synthesis of atropisomeric benzofurans through the Cu/spirocyclic-pyrrolidine-oxazoline(SPDO) complex catalyze asymmetric formal [3 + 2] cycloaddition between quinones and ynamides is explored, producing a range of structurally diverse axially chiral benzofurans in satisfactory yields with good to excellent enantioselectivities. Furthermore, density functional theory calculations were applied to explain the possible reaction mechanism.

关键词： benzofuran atropisomers novel de novo synthetic strategy asymmetric formal [3 + 2] cycladdition Cu/SPDO complex DFT calculations

Systematic Acupuncture Explains Acupuncture at Baihui(GV20) and Fengchi(GB20) Targeting the Inflammatory Response to Regulate Migraine

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Journal of Traditional Chinese Medicine 2025年

作者： min yu ZHENG Meifeng SUN Ju PENG Zetong CAO Zhixian HUANG Xiaohua Medical College of Acu-Moxi and Rehabilitation， Guangzhou University of Chinese Medicine Department of Rehabilitation Medicine， the Affiliated Panyu Central Hospital of Guangzhou Medical University

Objective: To take Baihui (GV20) and Fengchi (GB20) targeting inflammatory response to regulate migraine as an example to describe a new method for studying the mechanism of stimulating ***: The target information of Baihui (GV20) and Fengchi (GB20) was retrieved， and after intersection with migraine， Kyoto Encyclopedia of Genes and Genomes (KEGG)， Reactome， and UniProt Keywords were used for functional enrichment. After selecting the main pathway， rats were selected and nitroglycerin was used for modeling， and the behavioral scores， inflammatory factors， heme oxygenase 1 (HMOX1)， protein kinase B (AKT1)， signal transducer and activator of transcription 3 (STAT3)， phosphorylated extracellular signal-regulated kinase 1/2 (P-ERK1/ERK2) and other states of the rats in the acupuncture， twisting， and electroacupuncture groups were ***: A total of 135 Baihui (GV20) targets and 27 Fengchi (GB20) targets were collected. A total of 73 target information were obtained after the intersection of these targets in migraine. These 73 targets have three main pathways: hypoxia-inducible factor 1 (HIF-1) signaling pathway， signaling by interleukins and inflammatory response. The main targets in the pathway were verified and found that interleukin-1 beta (IL-1β)， interleukin-6 (IL-6)， tumor necrosis factor-alpha (TNF-α) and HMOX1， AKT1， STAT3， P-ERK1/ERK2 can be regulated by Baihui (GV20) and Fengchi (GB20).Conclusion: Baihui (GV20) and Fengchi (GB20) can regulate migraine by regulating inflammatory factors and HMOX1， AKT1， STAT3， P-ERK1/ERK2 and other changes in HIF-1 signaling pathway， Signaling by Interleukins and Inflammatory response pathways. Based on systems biology and network pharmacology， and with the model of "acupoint-target-disease"， explore the research methods of systematic acupuncture and moxibustion. We believe this is a usable research direction for exploring the mechanism of acupuncture stimulation.

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