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Investigation on RQ Embrittlement Mechanism of FeCuNbSiB Soft Magnetic Alloy

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Journal of Iron and Steel Research International 2000年第2期7卷 45-49页

作者： CAO Xing-guo huang Jin-liang CHEN Wen-zhi ZHOU Shou-xiong Luoyang Institute of Technology Central Iron & Steel Research Institute

The XRD, TEM, PAT, Curie temperature and internal friction methods were used to study systematically the embrittlement mechanism of rapidly quenched ( RQ ) nanocrystalline soft magnetic alloy *** test results confirmed that the RQ embrittlement mechanism of amorphous alloy FeCuNbSiB was not related to crystallization but that was related to structural relaxation. Furthermore, the structural relaxation temperature of amorphous alloy FeCuNbSiB was much lower than that of used commonly amorphous alloy Fe78B13Si9. It meant that the RQ embrittlement is easier to happen for nanocrystalline alloy FeCuNbSiB than amorphous alloy Fe-B-Si.

关键词： FeCuNbSiB RQ embrittlement mechanism structural relaxation crystallization

A Study on the Biocompatibility of MgO Coating Prepared by Anodic Oxidation Method on Magnesium Metal

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Journal of Bionic Engineering 2020年第1期17卷 76-91页

作者： Yangmei Chen Xugang Lu Fenghua Zhao Yi Hu Shibing xiong Yuqiang guo Ping huang Bangcheng Yang Engineering Research Center in Biomaterials Sichuan UniversityChengdu 610064China National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610064China Sichuan guojia Biomaterials Co. LtdChengdu 610064China Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Nanjing Normal UniversityNanjing 210046China Panzhihua International Research Institute of Vanadium and Titanium Panzhihua UniversityPanzhihua 617000China

Magnesium(Mg),is widely used for the bone repair in oral and orthopedic application due to excellent bioactivity,degradation and ***,the range of application is greatly limited because of the rapid degradation of Mg metal in the *** modification is an effective method to enhance the corrosion resistance and reduce the degradation rate of Mg *** the present study,pure Mg metal(P-Mg)was subjected to alkali-heat treatment(AT-Mg)or anodic oxidation-heat treatment(AO-HT-Mg).Both AT-Mg and AO-HT-Mg had a layer of MgO on their surfaces after *** the effects of MgO coating on corrosion resistance,bioactivity,Mesenchymal Stem Cells’(MSCs)proliferation,adhesion and osteogenic differentiation,and the bone repair capability of Mg metal were *** found both AT-Mg and AO-HT-Mg had stronger corrosion resistance than *** on both AT-Mg and AO-HT-Mg had higher expression of proteins and genes of ALP,OCN,Col-I and Runx2 than those on *** also showed better bone repair property than P-Mg in *** general,MgO layer formed by anodic oxidation-heat treatment had better resistance and biocompatibility than that produced by alkali-heat *** study indicated the MgO coating not only improved the corrosion resistance of Mg metal,but also promoted the osteogenic differentiation of MSCs and bone regeneration.

关键词： magnesium MgO coating alkali-heat treatment anodic oxidation-heat treatment corrosion resistance biomedical-materials

A wide-linear-range and low-hysteresis resistive strain sensor made of double-threaded conductive yarn for human movement detection

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Journal of Materials Science & Technology 2024年第5期172卷 202-212页

作者： Fei huang Jiyong Hu xiong Yan Shanghai Frontier Science Research Center for Modern Textiles Donghua UniversityShanghai 201620China

Yarn-based flexible strain sensors with advantages in wearability and integrability have attracted wide ***,it is still a big challenge to achieve yarn-based strain sensors with a wide linear strain range,low hysteresis,and durability synchronously that can be used for full range detection of human body ***,a new structure,double-threaded conductive yarn with rhythmic strain distribu-tion,is reported to markedly widen the linear strain range of microcrack-based stretchable strain sensors.A new method of winding and thermally adhering hot-melt filaments on the surface of the elastic fiber is used to achieve double-threaded yarn(DTY)with rhythmic strain *** proposed strategy,the integration of heterogeneous materials,is reported to significantly reduce the mechanical hysteresis of composite *** strain distribution of the DTY during stretching causes multi-level micro-cracks in different regions of the carbon nanotube(CNT)conductive layer deposited on the surface of the ***,the sensing performance of DTY-based strain sensor can be adjusted by designing the structural *** final prepared flexible strain sensor has the advantages of a wide linear strain range(100%),great sensitivity(GF=12.43),low hysteresis,rapid response(158 ms),high repeatability(>2000 cycles at 50%strain),and hydrophobicity,*** sensor can monitor human motion repeatedly and stably well,and shows great advantages in flexible wearable devices.

关键词： Double-threaded yarn Strain redistribution Hysteresis Human motion monitoring

Hydrothermal Synthesis and Crystal Structure of Iron Molybdophosphate Fe[Mo_6O_(12)(OH)_3(H_2PO_4)(HPO_4)_2(PO_4)]_2- [Fe(2,2′-bipy)(H_2O)_2]_2[Fe(2,2′-bipy)_3]_2·6H_2O

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Chinese Journal of Structural Chemistry 2005年第10期24卷 1117-1122页

作者： guo Hong-Xu LIU Shi-xiong Department of Chemistry Fuzhou University Fuzhou 350002 China Department of Chemistry Zhangzhou Teachers College Zhangzhou 363000 China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter The Chinese Academy of Sciences Fuzhou Fujian 350002 China

A molybdenum（V） phosphate supported by iron coordination complexes, Fe[Mo6O12（OH）3（H2PO4）（HPO4）2（PO4）]2[Fe（2,2′-bipy）（H2O）2]2[Fe（2,2′-bipy）3]2·6H2O （bipy = 2,2′-bipyridine） 1, has been synthesized by hydrothermal synthesis and characterized. The title complex crystallizes in the monoclinic system, space group P21/c with a = 14.0005（8）, b = 25.5229（12）, c = 17.9956（9） A, β = 103.470（2）°, V= 6253.5（6） A^3, Z= 2, Mr = 4114.03, Dc = 2.185 g/cm^3, F（000） = 4040, μ = 1.931 mm^-1, R = 0.0438 and wR = 0. 1168. The structure of the title polyoxometalate anion is based on a centrosymmetrical cluster Fe[Mo6O2（OH）3（H2PO4）（HPO4）2（PO4）]2 supported by two [Fe（2,2′-bipy）（H2O）2] subunits. The 2D network is formed through intermolecular hydrogen bonds.

关键词： molybdophosphate iron complex hydrothermal synthesis crystal structure

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新时代皖苏结合部共建自贸区港研究

安徽冶金科技职业学院学报 2019年第1期29卷 92-94页

作者：黄国雄王平李德俊杨根子王成武安徽省发展战略研究会马鞍山研究组安徽马鞍山243000

阐明新时代改革开放的一个重要特征就是设立自贸区、自贸港,在皖苏结合部的宁马共建自贸区、自贸港的必要性、可行性,以及对实施长三角区域一体化发展国家战略的意义。

关键词：新时代改革开放宁马共建自贸区港推进长三角一体化发展

Studies on Electronic Structure and Magnetic Properties of an Organic Magnet with Metallic Mn^2＋ and Cu^2＋ Ions

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Communications in Theoretical Physics 2004年第5X期42卷 798-800页

作者： YAOJian-guo PENGGuang-xiong DepartmentofBasicSciences HubeiAutomotiveIndustriesInstituteShiyan442002China InstituteofHighEnergyPhysics theChineseAcademyofSciencesBeijing100039China

The electronic structure and the magnetic properties of the non-pure organic ferromagnetic compound MnCu(pbaOH)(H2O)3 with pbaOH = 2-hydroxy-1, 3-propylenebis (oxamato) are studied by using the density-functional theory with local-spin-density approximation. The density of states, total energy, and the spin magnetic moment are calculated. The calculations reveal that the compound MnCu(pbaOH)(H20)3 has a stable metal-ferromagnetic ground state, and the spin magnetic moment per molecule is 2.208 μB, and the spin magnetic moment is mainly from Mn ion and Cu ion. An antiferromagnetic order is expected and the antiferromagnetic exchange interaction of d-electrons of Cu and Mn passes through the antiferromagnetic interaction between the adjacent C, O, and N atoms along the path linking the atoms Cu and Mn.

关键词：密度函数不纯有机磁铁电子结构铁磁体性质

Microstructure of phases in a Cu–Zr alloy

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Rare Metals 2015年第10期34卷 706-709页

作者： Li-Jun Peng Xu-Jun Mi Bai-Qing xiong Hao-Feng Xie guo-Jie huang State Key Laboratory of Nonferrous Metals and Processes General Research Institute for Nonferrous Metals

The morphology and crystallography of phases in the Cu-0.12% Zr alloy were investigated by scanning electron microscope(SEM), transmission electron microscope(TEM), and high-resolution transmission electron microscope(HRTEM). The results show that the as-cast microstructure of Cu–Zr alloy is mainly Cu matrix and eutectic structure which consist of Cu and Cu5Zr phases with a fine lamellar structure. The disk-shaped and plateliked Cu5Zr phases with fcc structure are found in the matrix, in which habit plane is parallel to {111}a plane of the *** the copper matrix and Cu5Zr phase,there exists an orientation relationship of [112]a|| [011]Cu5Zr;(111)a||(111)Cu5Zr. The space structure model of Cu5Zr phase can be established.

关键词： Cu–Zr alloy Microstructure Crystal structure Morph

Effects of cultivation on N_2O emission and seasonal quantitative variations of related microbes in a temperate grassland soil

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Journal of Environmental Sciences 2001年第3期13卷 376-379页

作者： huang Bin CHEN Guan xiong Laboratory of Terrestrial Ecological Process Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China.

Laboratory and in situ experiments were done to investigate the influences of cultivation on temperate semi arid grassland (for 17 years spring wheat planted once every two years without fertilization) on soil N 2O emission and quantitative variations of related soil microbes. In the laboratory (25℃ and soil moisture 18%), cultivation increased soil transformations of fertilizer nitrogen (100 μg N/g as NaNO 3, urea, or as urea with dicyandiamide 1 μg N/g). The N 2O emissions from the cultivated and uncultivated soils with or without nitrogen additions were relatively low, and mainly originated from the nitrification. The soil N 2O emission due to cultivation decreased somewhat upon no fertilization or NaNO 3 addition, but significantly upon urea addition. The role of dicyandiamide as nitrification inhibitor was only considerable in the cultivated soil, and had small influence on decreasing N 2O emission in the two soils. The influence of cultivation on soil N 2O emission was also reflected by the number variations of microbes related with soil nitrogen transformation in the two soils. Compared to the uncultivated grassland, in situ ammonifiers and denitrifiers in the cultivated grassland quantitatively averagely increased, and aerobic no symbiotic azotobacters were quantitatively similar, leading to the continued decrease of organic matter content and the decrease of N 2O emission from the cultivated grassland soil.

关键词： grassland cultivation N 2O emission nitrogen fertilizer microbes

Albumin-based multidrug delivery system enriched in Golgi apparatus against metastatic breast cancer

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Nano Research 2023年第4期16卷 5640-5652页

作者： Chenqi guo xiong Peng Ting Zhao Jiaxing Feng Zhaofei guo Mengying Wu Rongping Zhang Xun Sun Yuan huang Zhirong Zhang Tao Gong Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan UniversityChengdu 610041China

Breast cancer and metastasis remain great challenges in clinical *** with monotherapy,combination therapy,especially mediated by nanomedicine delivery strategy,significantly improves the therapeutic efficacy and reduces undesired ***-2(COX-2)inhibitors are widely used for adjuvant chemotherapy because COX-2 is overexpressed in virtually all cancer cell lines to regulate tumor progression by catalyzing prostaglandin E2(PGE2)*** drug combination strategy is still required to be improved due to some unsatisfactory clinical trial *** processes of tumor growth and metastasis are orchestrated by multiple proteins in addition to COX-2,which are modified and transported by Golgi ***,disrupting the structure and function of Golgi apparatus can inhibit the secretion of tumor-related proteins and further suppress carcinoma progression and *** COX-2 is also enriched within Golgi apparatus in tumor cells,COX-2 inhibitors and Golgi disrupting agents can be co-delivered to Golgi apparatus to maximize the *** this work,we developed a human serum albumin(HSA)nanoparticle encapsulating pirarubicin(THP),retinoic acid(RA),and indomethacin(IMC),called TIR-HSA,which was observed to be localized in Golgi complex of 4T1 *** to the synergistic effect of these three drugs,TIR-HSA inhibited the proliferation,migration,and invasion of tumor cells,enhanced the apoptotic rate,and improved the immunosuppressive tumor microenvironment,which remarkably regressed the tumor growth and metastasis and prolonged the survival period of 4T1-bearing mice.

关键词： albumin Golgi apparatus metastatic breast cancer adjuvant chemotherapy cyclooxygenase-2(COX-2)inhibitors