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SYNTHESIS AND CRYSTAL STRUCTURE OF A NEW COMPOUND Sr_6Sn_2Nb_8O_30

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Journal of Wuhan University of Technology(Materials Science) 1999年第2期14卷 35-39页

作者： fang liang ZHANG hui WU Bolin YUAN Runzhang Wuhan University of Technology Wuhan University of Technology China State Key Lab. Adv. Tech. Mater. S. Wuhan Univ. of Tech. Wuhan 430070 China

A new compound Sr6Sn2Nb8O30 was found in the ternary system of SrO-SnO2-Nb2O5. The transparent colorless crystal with needle-like shape can be grown by flux method. The crystal structure of new compound was determined by X-ray diffraction, and its belongs to tungsten bronze structure. Sr6Sn2Nb8O30 crystallizes in orthorhombic system with unit cell parameters a= 17. 579 (DA,6= 17. 509(DA,c=7. 7880(5)A,Z = 4 and space group Cmm2.

关键词： Sr_6Sn_2Nb_8O_30 system new compound tungsten bronze structure

Synthesis and Characterization of a New Triple-layered PerovskiteKSr_2Nb_3O_(10 )and Its Protonated Compounds

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Journal of Wuhan University of Technology(Materials Science) 2002年第2期17卷 22-25页

作者：方亮 State Key Lab. of Advanced Tech. For Mater Synthesis and Processing Wuhan University of Technology Wuhan China

New layered perovskites, KSr2Nb3O10 and two new protonated niobates HSr2 Nb3O10·1.2H2O and HSr2Nb3O10,were synthesized by solid state reaction and ion-exchange reaction. These new compounds -were characterized by EPMA, AAS, XRD, IR, DTA and so on. The structure may be described as treble perovskite sheets [Sr2Nb3O10]- interleaved with K+ ,H3O + or H+. These new compounds are new members of the Dion-Jacob-sonseries with n=3 for the general formula M[An-1 NbnO3n+1], and their indexed X-ray powder diffraction data were first reported in the paper.

关键词： niobate peravskite structure ion exchange protonated

SYNTHESIS AND X-RAY POWDER DIFFRACTION DATA OF A NEW COMPOUND:K_6FeNb_(15)O_(42)

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Journal of Wuhan University of Technology(Materials Science) 1998年第3期13卷 16-18页

作者：方亮 Wuhan University of Technology China Res. Inst .Of Advanced /Mater. Wuhan Univ. of Tech. Wuhan 430070 China

A new compound K6FeNb15O42 was prepared for the first time by solid state reaction in K2O-Fe2O3-Nb2O5 ternary system. The X-ray powder diffraction data of the title compound was measured. K6FeNb15 O42 crystallizes in the hexagonal system with unit cell parameters, a = 9. 1320(4) A ,c = 12. 0670(9) A , and space group P63/mcm (193) , z = 1. The calculated and measured densities are 4. 489 g/cm3 and 4. 485 g. cm3, respectively.

关键词： K2O-Fe2O3-Nb2O3 system new com-pound powder diffraction data

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Determination of Protein via Resonance Light Scattering Technique with (NH_4)_2SO_4

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Chemical Research in Chinese Universities 2010年第2期26卷 189-193页

作者： WU Li-hang MU Dan liang fang-hui TIAN Yuan ZHANG Han-qi YU Ai-min WANG Xing-hua CHEN Ying College of Chemistry Jilin UniversityChangchun 130012P.R.China Department of Pharmaceutical Science Changchun Medical CollegeChangchun 130031P.R.China Jilin Province Center of Environmental Monitoring Changchun 130011P.R.China

Be able to form large particles with protein via electrostatic force to enhance the intensity of resonance light scattering（RLS）,（NH4）2SO4 was used as a RLS probe to determine bovine serum albumin（BSA）,human serum albumin（HSA） and ovum albumin（OVA）.The experimental conditions were investigated,including the acidity and saturation degree of （NH4）*** the optimum conditions,the enhanced RLS intensity is proportional to the concentration of BSA,HSA and OVA in the ranges of 5×10-8―1×10-6,2.5×10-8―8×10-7 and 5×10-8―1.5×10-6 mol/L,*** detection limits for BSA,HAS and OVA are 6.6×10-9,3.8×10-9 and 7.4×10-9 mol/L,*** effects of foreign substances were also *** practical and synthetic samples were analyzed with satisfactory results.

关键词： Resonance light scattering (NH4)2SO4 Bovine serum alumin Human serum alumin Ovum albumin

Ionic Liquid-based Microwave-assisted Liquid-liquid Microextraction and High Performance Liquid Chromatography Determination of Sulfonamides from Animal Oils

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Chemical Research in Chinese Universities 2013年第4期29卷 647-652页

作者： FENG Xu-dong liang fang-hui SU Rui WU Li-jie LI Xue-yuan WANG Xing-hua ZHANG Han-qi YU Ai-min College of Chemistry Jilin University Changehun 130012 P. R. China Department of Pharmacy Changchun Medical College Changchun 130117 P. R. China

The authors performed ionic liquid-based microwave-assisted liquid-liquid microextraction（IL-based MALLME） coupled with high performance liquid chromatographic separation for the determination of 6 sulfonamides （SAs） from animal oils. The target analytes were extracted from animal oil samples with sodium hydroxide solution containing 1-butyl-3-methylimidazolium tetrafluoroborateand as the extraction solvent under microwave irradiation. The experimental parameters of the IL-based MALLME, including types of ILs, volume of IL, amount of ion-pairing agent（NHaPF6）, pH value of sample solution, and extraction temperature and time were evaluated. The limits of detection and quantification obtained were in a range of 0.4--0.5μg/kg and a range of 1.2--1.8μg/kg, respectively. The accuracy of the method was evaluated by analyzing five spiked animal oil samples at two fortified levels（5 and 50μg/kg）, and the recoveries of SAs varied from 81.4% to 114.5% with relative standard deviations ranging from 0.8% to 9.0%.

关键词： Ionic liquid-based microwave-assisted liquid-liquid microextraction(IL-based MALLME) High perfor-mance liquid chromatography(HPLC) Sulfonamide Animal oil

Inactivation of Smad4 is a prognostic factor in intrahepatic cholangiocarcinoma

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Chinese Medical Journal 2013年第16期126卷 3039-3043页

作者： YAN Xue-qiang ZHANG Wei ZHANG Bi-xiang liang hui-fang ZHANG Wan-guang CHEN Xiao-ping Wuhan Medical & Health Center For Women and Children WuhanHubei 430016 China Department of Obstetrics and Gynecology Yongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei 430030 China Department of Hepatic Surgery Yongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei 430030 China

Background Smad4 is found mutated in many *** acts as a tumor suppressor in the regulation of TGF-β signaling *** objective of this work was to study the expression of Smad4 in intrahepatic cholangiocarcinoma （ICC） and its relationship with the biological behavior and prognosis of the *** Forty-nine paraffin-embedded ICC specimens and nine normal liver tissues were analyzed by immunohistochemical methods using Smad4 monoclonal *** expression of Smad4 was compared with the clinical pathological characteristics of the *** The expression of Smad4 was 100％ positive in normal liver tissues,which was higher than that in the ICC （44.9％）.Negative labeling of the Smad4 protein was found in 26.1％（6/23） of well-differentiated ICCs and 61.5％（16/26） of poorly to moderately differentiated ICCs,and 34.3％（12/35） and 71.4％（10/14） showed negative Smad4 labeling （P=0.018） of ICC at pathological Tumor Node Metastasis （pTNM） stage Ⅰ-Ⅱ and pTNM stage Ⅲ-Ⅳ ***,72％（8/11） of lymph node metastatic ICCs and 73.3％（11/15） of intrahepatic metastatic ICCs showed negative labeling of the Smad4 *** loss of Smad4 expression in those metastatic ICCs was significantly more severe compared with non-metastatic ICCs （P=0.000）.Conclusions The expression of Smad4 was associated with the histological grade,clinical stage,and metastasis of ICC （P ＜0.05）.The detection of Smad4 may be helpful in determining the degree of malignancy and prognosis of ICC.

关键词： Smad4 metastasis immunohistochemistry clinicalpathology intrahepatic cholangiocarcinoma

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定向结晶对多孔股骨柄室温拉伸性能的影响

材料工程 2009年第9期37卷 13-15,19页

作者：张伟刘慧梁芳慧黄永玲北京百慕航材高科技股份有限公司北京100095

采用医用钴铬钼合金,通过普通铸造和定向结晶铸造两种技术制得多孔股骨柄毛坯,经高温烧结制成多孔股骨柄。对比研究了普通铸造技术和定向结晶对多孔股骨柄的室温拉伸性能的影响,分析了两种股骨柄的宏观与显微组织以及断口形貌。结果表明... 详细信息

采用医用钴铬钼合金,通过普通铸造和定向结晶铸造两种技术制得多孔股骨柄毛坯,经高温烧结制成多孔股骨柄。对比研究了普通铸造技术和定向结晶对多孔股骨柄的室温拉伸性能的影响,分析了两种股骨柄的宏观与显微组织以及断口形貌。结果表明:经高温烧结的定向结晶铸造股骨柄,其宏观组织呈柱状晶,室温拉伸性能比高温烧结的普通铸造股骨柄显著提高,抗拉强度和延伸率分别至少提高了1.2倍和2倍。

关键词：定向结晶多孔股骨柄抗拉强度延伸率

Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-hui Chen Zuo-Tang liang Yu-Gang Ma Xin-Li Sheng Qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

利用槽膛形状的计算机仿真技术确定160kA预焙槽最佳铝液高度

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轻金属 2000年第1期 33-36页

作者：梁芳慧冯乃祥孙阳东北大学辽宁沈阳110006

本文利用计算机仿真技术，对我国某铝厂１６０ｋＡ大型预焙阳极电解槽在不同铝液水平时槽帮结壳的变化进行了计算研究，并确定了铝电解槽正常生产时最佳的铝液高度。

关键词：铝电解槽铝液高度计算机仿真槽帮结壳