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International Journal of Minerals,Metallurgy and Materials 2012年第11期19卷 1029-1035页

作者： ming-jie Dong Zhi-ming Gao Yong-chang liu Xun Wang li-ming yu School of Materials Science&Engineering Tianjin Key Laboratory of Advanced Jointing TechnologyTianjin UniversityTianjin 300072China

The microstructural formation and properties of Sn-2.5Bi-xln-lZn-0.3Ag （in wt%） alloys and the evolution of soldered interfaces on a Cu substrate were investigated. Apart from the relatively low melting point （about 195C）, which is close to that of conventional eutectic Sn-Pb solder, the investigated solder presents superior wettability, solderability, and ductility. The refined equiaxial grains enhance the me- chanical properties, and the embedded bulk intermetallic compounds （IMCs）（Cu6Sn5 and CusZns） and granular Bi particles improve the joint reliability. The addition of In reduces the solubility of Zn in the 13-Sn matrix and strongly influences the separation and growth behaviors of the IMCs. The soldered interface of Sn-2.5Bi-xln-lZn-0.3Ag/Cu consists of Cu-Zn and Cu-Sn IMC layers.

关键词： soldering alloys indium microstrucmre interfaces melting point intermetallics

Effects of aluminum and titanium on the microstructure of ODS steels fabricated by hot pressing

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International Journal of Minerals,Metallurgy and Materials 2018年第10期25卷 1156-1165页

作者： Qian Zhao li-ming yu Yong-chang liu yuan Huang Zong-qing Ma Hui-jun li State Key Lab of Hydraulic Engineering Simulation and Safety School of Materials Science & Engineering Tianjin University

Three oxide-dispersion-strengthened(ODS)steels with compositions of Fe-14Cr-2W-0.2V-0.07Ta-0.3Y_2O_3(wt%,so as the follows)(14Y),Fe-14Cr-2W-0.2V-0.07Ta-1Al-0.3Y_2O_3(14YAl),and Fe-14Cr-2W-0.2V-0.07Ta-0.3Ti-0.3 Y_2O_3(14YTi)were fabricated by hot *** electron microscopy(TEM)was used to characterize the microstructures and nanoparticles of these ODS *** to the TEM results,14Y,14YAl,and 14YTi ODS steels present similar bimodal structures containing both large and small *** addition of Al or Ti has no obvious effect on the microstructure of the *** spatial and size distribution of the nanoparticles was also *** results indicate that the average size of nanoparticles in the 14YTi ODS steel is smaller than that in the 14YAl ODS *** such as Y_2O_3,Y_3Al_5O_(12) and YAlO_3,and Y_2Ti_2O_7 were identified in the 14Y,14YAl,and 14YTiODS steels,respectively.

关键词： hot pressing ODS steel mechanical alloying bimodal structure nanoparticle aluminum titanium

One-pot synthesis of network supported catalyst using supramolecular gel as template

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Chinese Chemical Letters 2010年第8期21卷 991-994页

作者： Yong liang li ming Tang yu Xia Kai Chen Bo Tian li Xin Jin Laboratory of Advanced Materials Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

A simple and general strategy is described for preparing network supported catalyst through a one-pot synthetic procedure using supramolecular gel as *** procedure directly attaches ligand to support during fabricating the *** this strategy,supported CuBr/di-（2-picolyl） amine catalyst with U-shaped fibrillar network was prepared and used in atom transfer radical polymerization of methyl *** and SEM characterization of the catalyst revealed homogeneous distribution of ligand,sufficient reactive sites,adequate mechanical strength and *** polymerization results demonstrated high activity and reusability of such *** strategy might be extended to other supported catalysts used in column reactors.

关键词： One-pot synthesis Network supported catalyst Supramolecular gel Atom transfer radical polymerization

Effect of deformation twinning on high-temperature performance of cold-rolled S31042 steel

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Journal of Iron and Steel Research International 2019年第7期26卷 704-711页

作者： Yan-mo li Yong-chang liu li-ming yu Chen-xi liu Chong li yuan Huang Hui-jun li Zong-qing Ma State Key Lab of Hydraulic Engineering Simulation and Safety School of Materials Science and Engineering Tianjin University Tianjin 300354 China

Influence of deformation twinning on high-temperature instantaneous performance of cold-rolled S31042 steel was investigated by optical microscopy, scanning electron microscopy, transmission electron microscopy, and high-temperature tensile test. An increasing number of deformation twins have formed as the cold rolling reduction degree increases during the cold rolling process. During the tensile process at 700 ℃, M23C6 particles generated along the deformation twin boundaries, and NbCrN nanoparticles dispersedly precipitated throughout the austenite grains. For the high-temperature tensile sample subjected to cold reduction for 80%, it is observed from the fractured cross section that numerous defor-mation twin boundaries were decorated by discontinuous M23C6 particles. Therefore, austenite grains were divided into several independent zones by the deformation twins, and the grains were refined. Due to the grain refinement strengthening and precipitation strengthening, the high-temperature temporal strength of the 80% cold-rolled sample was significantly improved, and simultaneously, this sample exhibited favorable high-temperature elongation.

关键词： S31042 steel Cold rolling Deformation twinning Carbide precipitation High-temperature performance

Fabrication of GaAs Nanowires by Colloidal lithography and Dry Etching

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Chinese Physics Letters 2012年第3期29卷 165-168页

作者： CHEN Ke HE Jian-Jun li ming-yu LaPierre R State Key Laboratory of Modern Optical Instrumentation Zhejiang UniversityHangzhou 310027 Department of Engineering Physics McMaster UniversityHamiltonONL8S 4L7Canada

A method for the fabrication of well-ordered periodic GaAs nanowires(NWs)is developed based on a combination of colloidal lithography and an inductively coupled plasma(ICP)etching technique using CHF_(3)/Ar and Cl_(2)/N_(2)/BCl_(3)*** effects of etching parameters such as flow rate,and etching duration on NW fabrication are *** reflectance spectra of the GaAs NW samples are measured and compared with NWs fabricated by molecular beam epitaxy.

关键词： nanowires reflectance ordered

Pharmacological Study on Antitumor Activity of 5-Fluorouracil-1-Acetic Acid and Its Rare Earth Complexes

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Journal of Rare Earths 2000年第2期18卷 140-143页

作者： Yang, Zheng-Yin Wang, liu-Fang Yang, Xin-Ping Wang, Da-Wei li, yu-ming Dept. of Chem. Lanzhou Univ. Lanzhou 730000 China

The antitumor activity of 5 fluorouracil 1 acetic acid(HFAA) and its lanthanide complexes(La(FAA) 3, Eu(FAA) 3) were studied. The results show that HFAA, La(FAA) 3 and Eu(FAA) 3 with the concentrations of 1 0×10 -5 ～1 0×10 -2 μg·ml -1 inhibit the colony formation of leukemia cells(L 1210 ) and the growth of transplanted tumor sarcoma 180(S 180 ), hepatic carcinoma(HEPA) and ehrlich ascites tumor(EC) as well. The maximum inhibitory rate of Eu(FAA) 3 for S 180 is 38 4%, that HFAA and La(FAA) 3 for EC are 22 4% and 43 4%, respectively. The life prolongation rate of Eu(FAA) 3 for HEPA bearing mice is as long as 284%.

关键词： rare earths antitumor activity 5 fluorouracil 1 acetic acid

Synthesis and characterization of poly[(4-vinylphenyl)dimethyl-silane]-b-polybutadiene-b-poly[(4-vinylphenyl)dimethylsilane](PVPDMS-b-PBd-b-PVPDMS)

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Chinese Chemical Letters 2011年第11期22卷 1371-1374页

作者： Hong Wei Ma Bai Wang Chun Qing Zhang Yang li Yan ming Hu yu Rong Wang liaoning Key Laboratory of Polymer Science and Engineering School of Chemical Engineering Dalian University of Technology Dalian Liaoning 116024 China

The novel functionalized triblock copolymers,poly[（4-vinylphenyl）dimethylsilane]-b-polybutadiene-b-poly[（4-vinylphenyl）-dimethylsilane] （PVPDMS-b-PBd-b-PVPDMS）,were synthesized by anionic polymerization method using high vacuum technique. The hydrocarbon-soluble dilithium initiator synthesized from l,3-di[l-（methylphenyl）ethenyl]benzene（MPEB） was used to synthesize polybutadiene（PBd） precursors and the triblock copolymers in the presence of *** precursors and copolymers were characterized by size exclusion chromatography（SEC）,~1HNMR and DSC techniques.

关键词： Anionic polymerization Functionalized triblock copolymers High vacuum technique

In situ Molecular Self-assembly and Sensitive Label-free Detection of Streptavidin via a Wavelength Interrogated Surface Plasmon Resonance Sensor

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Chemical Research in Chinese Universities 2013年第6期29卷 1219-1224页

作者： yu Yong-jiang ZHOU Ying li Qiu-shun YANG Yan SHI Jian-guo li ming-yu YAO Wei-guo WANG Jun-nan DONG Wen-fei QI Zhi-mei State Key Laboratory on Integrated Optoelectronics College of Integrated OptoelectronicsJilin University Changchun 130012 P.R.China Key Biosensor Laboratory of Shandong Province Biology Institute of Shandong Academy of SciencesJinan 250014 P.R.China State Key Laboratory of Modern Optical Instrumentation Zhejiang University Hangzhou 310027 P.R.China Key Laboratory of Automobile Materials Ministry of Education Department of Materials Science and EngineeringJilin University Changchun 130025 P.R.China The Second Hospital of Jilin University Changehun 130041 P. R. China State Key Laboratory of Transducer Technology Institute of Electronics Chinese Academy of Sciences Beijing 100190 P. R. China

The sensing sensitivity of wavelength interrogated surface plasmon resonance（WISPR） biosensor is improved by self-assembly of polyelectrolyte multilayer（PEM） film of poly（allylamine hydrochloride）（PAH）/ poly（sodium-p-styrenesulfonate）（PSS） on the Au film coated glass chip via the layer-by-layer（LBL） technique. The home-made WISPR with Krestchmann configuration consists of a tungsten-halogen lamp as a photon source and a charge coupled device（CCD） camera as the detector. The influence of PEM film thickness on the optical properties of WISPR biosensors was investigated theoretically and experimentally. In order to achieve higher sensing sensitivity, the PEM film thickness has to be designed as ca.14 nm at an Au layer thickness of 50 nm and an incidental angle of 11.8°. Furthermore, the PEM coated WISPR biosensor can serve as highly sensitive biosensor, in which the biotin-streptavidin is used as bioconjugate pair. After deposition of the PEM film of （biotin/PAH）（PSS/PAH）3, the modified WISPR biosensor is more sensitive to the low concentration（〈0.01 mg/mL） of streptavidin. And the sensing sensitivity can be further increased by one order of magnitude compared with that of the biotin/PAH coated WISPR biosensor. Thus, such low-cost, high-performance and efficient PEM-coated WISPR biosensors have great potentials in a diverse array of fields such as medical diagnostics, drug screening, food safety analysis, environmental monitoring, and homeland security.

关键词： Polyelectrolyte multilayer Sensing sensitivity Biosensor Wavelength interrogated surface plasmon resonance

Multi-Analysis of Non-Thyrogenous Masses of the Neck

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Chinese Journal of Clinical Oncology 2007年第3期4卷 172-178页

作者： Yong li ming Gao Yang yu Yigong li Yan Zhang Xiaolong li Department of Head and Neck Tianjin Cancer Institute and Hospital Tianjin 300060 China.

OBJECTIVE To systematically analyze and summarize non-thyroge-nous masses of the neck(NTMN)by consideration of new areas,a large sample size and multiple-aspect *** Our research involved 3,125 NTMN *** summarized the proportion of various NTMN and the distribution of the neck diseases based on the new international *** clinical traits such as sexual proportion and age,etc,were analyzed along with the unknown pri-mary cervical metastatic carcinomas(UPCMC),multiple nodular NTMN and tubercular *** There were 68 different diseases *** all the NTMN,the percentage of metastatic carcinomas was 63.3%.The neck masses with a focus above the clavicle comprised 62.3% of the metastatic carcinomas whose focuses were ***,other results almost sup-ported the “rule of 80%”.There was an obvious distribution of traits at every sub *** example,there were 23 different diseases in level III,of which the most common was *** made up 12.3% of all metastatic *** NTMN were composed of lymphoma,metastatic car-cinoma and tubercular lymphadenitis,*** tubercular lymphadenitis pa-tients,the patients without tubercular toxic symptoms comprised 77.1% of all tubercular lymphadenitis *** NTMN are complex and various,with a definite distribu-tion in each neck *** relating the sex ratio,UPCMC,multiple nodular NTMN and tubercular lymphadenitis to the clinical traits of NTMN will provide support for clinical applications.

关键词： neck non-thyrogenous mass international classification analysis

Crust-derived felsic magmatism in the Emeishan large igneous Province:New evidence from zircon U-Pb-Hf-O isotope from the Yangtze Block,China

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Geoscience Frontiers 2022年第3期13卷 139-155页

作者： Hao Zou Cheng-Hui Hu M.Santosh Hai-Feng Chen Chang-Cheng Huang Xin-Wei Chen Hong-Kui li Xin Jin li-ming yu Min li State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu 610059China Key Laboratory of Tectonic Controls on Mineralisation and Hydrocarbon Accumulation of Ministry of Land and Resources Chengdu University of TechnologyChengdu 610059China School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China Department of Earth Science University of AdelaideAdelaideSA 5005Australia

Numerous intrusive bodies of mafic–ultramafic to felsic compositions are exposed in association with volcanic rocks in the Late Permian Emeishan large igneous province(EliP),southwestern *** of the granitic rocks in the EliP were derived by differentiation of basaltic magmas with a mantle connection,and crustal magmas have rarely been *** we investigate a suite of mafic dykes and Ⅰ-type granites that yield zircon U-Pb emplacement ages of 259.9±1.2 Ma and 259.3±1.3 Ma,*** εHf(t)values of zircon from the DZ mafic dyke are–0.3 to 9.4,and their corresponding TDM1 values are in the range of 919–523 *** εHf(t)values of zircon from the DSC Ⅰ-type granite are between–1 and 3,with TDM1 values showing a range of 938–782 *** also present zircon O isotope data on crust-derived felsic intrusions from the EliP for the first *** δ18O values of zircon from the DSC Ⅰ-type granite ranges from 4.87‰to 7.5‰.The field,petrologic,geochemical and isotopic data from our study lead to the following salient findings.(i)The geochronological study of mafic and felsic intrusive rocks in the EliP shows that the ages of mafic and felsic magmatism are similar.(ii)The DZ mafic dyke and high-Ti basalts have the same source,i.e.,the Emeishan mantle *** mafic dyke formed from magmas sourced at the transitional depth between from garnet-lherzolite and spinel-lherzolite,with low degree partial melting(liP is considered to be mafic–ultramafic magmas generated by a mantle plume,which partially melted the overlying crust,generating the felsic magma.

关键词： Emeishan Large Igneous Province Mafic and felsic magmatism Zircon U-Pb-Hf-O isotopes Crustal partial melting Mantle plume