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Mixed State and High Effective Utilization of Pilbara Blending Iron Ore Powder

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Journal of Iron and Steel Research International 2011年第9期18卷 1-5页

作者： CAO Yong-guo WU Sheng-li HAN hong-liang WANG hong-wei XUE Fang LIU Xiao-qin School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China

Pilbara blending iron ore powder （PB powder） is blending ores with good and poor quality iron ores, so how to use PB power effectively is a problem. The self-characteristics of PB powder and its single-components were studied respectively such as the macroscopic properties, microscopic properties, and high-temperature properties the behavior and effect in the sintering were mastered. Then based on the new ore-proportioning idea of iron ores sintering characteristics complementary, the principles on the effective use of PB powder were discussed, and was fur ther validated through the sintering pot test and industrial production. The results show that PB powder is composed of three kinds of iron ore, and the sintering characteristics of different iron ores are obviously discrepant. With the ore-proportioning optimization based on the iron ores sintering characteristics complementary, the proportion of PB iron ore powder can be increased to more than 45 %.

关键词： Pilbara blending ore sintering mixed state high effective utilization

Re-study of Nucleon Pole Contribution in J/ψ → NN^-π Decay

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Communications in Theoretical Physics 2006年第3X期46卷 507-513页

作者： ZONG Yuan-Yuan SHEN Peng-Nian ZOU Bing-Song LIU Ji-Feng liang wei-hong Institute of High Energy Physics the Chinese Academy of Sciences P.O. Box 918(4) Beijing 100049 China Department of Physics Guangxi Normal University Guilin 541004 China Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator Lanzhou 730000 China Institute of Theoretical Physics the Chinese Academy of Sciences Beijing 100080 China

We re-study nucleon pole contribution in J/ψ → NN^-π decays by including the imaginary part for the propagator of the off-shell nucleon with energy above π N threshold. It is found that when including the imaginary part in the propagator, the branching ratio of the decay width will descend about 11% compared with the result without including the imaginary part, no matter whether including the off-shell form factors or not. It also leads to a phase of up to 25° for the off-shell nucleon propagator at invariant mass around 1400 MeV. This effect needs to be considered for detailed partial wave analysis of N^＊ resonances around this mass region.

关键词： J/ψ decay form factor

Cloning and Expression Analysis of a Mitogen-Activated Protein Kinase Gene OsMPK14 in Rice

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Rice science 2010年第4期17卷 269-275页

作者： liang wei-hong BI Jia-jia PENG wei-feng ZHANG Fan SHI hong-hao LI Li College of Life Science Henan Normal University Xinxiang 453007 China

Mitogen activated-protein kinases （MAPKs） are important components in signal transduction pathways responding to various biotic and abiotic stresses. An MAPK gene, OsMPK14 （GenBank Accession No. GQ265780） from rice （Oryza sativa L.）, was cloned by RT-PCR. The full-length cDNA of OsMPK14 consists of 1660 bp in size, containing an open reading frame of 1629 bp, which encodes a 542-amino-acid polypeptide and has a typical protein kinase domain and a phosphorylation activation motif TDY. Sequence alignment and analysis revealed that OsMPK14 was located on rice chromosome 5, and composed of nine exons and eight introns in the coding region. Semi-quantitative RT-PCR was performed to detect the expression patterns of OsMPK14 in rice shoots and roots under darkness, drought, high salinity, low temperature and abscisic acid treatments. The OsMPK14 mRNA was induced by abscisic acid, low temperature and high salinity, but weakly inhibited by drought. In addition, the expression of OsMPK14 was up-regulated in roots, but down-regulated in shoots by light. The results indicate that OsMPK14 could be implicated in diverse rice stimuli-responsive signaling cascades, and its expression might be regulated by multiple factors.

关键词： rice mitogen-activated protein kinase gene gene clone abiotic stress expression analysis

A Study of GaN Grown on SiH_(4) Pre-Treated 6H-SiC Substrates

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Chinese Physics Letters 2012年第1期29卷 268-271页

作者： SONG Shi-wei liang hong-wei LIU Yang XIA Xiao-Chuan SHEN Ren-Sheng LUO Ying-Min DU Guo-Tong School of Physics and Optoelectronic Technology Dalian University of TechnologyDalian 116024 State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012

GaN thin films are grown on Si-terminated (0001) 6H-SiC substrates pre-treated with SiH_(4) in a metal organic chemical vapor deposition *** influence of the SiH_(4) pre-treatment conditions on the SiC surface is carefully *** is found that SiH_(4) could react with the SiC surface oxide,which will change the surface ***,our experiments demonstrate that SiH_(4) pre-treatment can distinctly influence the AlGaN nucleation layer and the basic characteristics of GaN.

关键词： GaN AlGaN (4)

Classification of breast microcalcifications: radiological-pathological correlation

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Chinese Medical Journal 2005年第17期118卷 1429-1435页

作者： SUN Zhe liang hong-wei XU Hui-mian Department of Oncological Surgery First Affiliated Hospital of China Medical University Shenyang 110001 China

Microcalcifications play a very important role in detection of breast cancer, especially early stage breast cancer. However, ambiguity still exists in understanding the relationship between radiological and pathological characteristics of microcalcifications. The definitive indication of a biopsy has not been established. The purpose of this study is to evaluate the relationship of classification of breast microcalcifications using full-field digital mammography to the pathological characteristics.

关键词： calcinosis breast neoplasms mammography

Expression Patterns of OsPIL11,a Phytochrome-Interacting Factor in Rice,and Preliminary Analysis of Its Roles in Light Signal Transduction

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Rice science 2012年第4期19卷 263-268页

作者： LI Li PENG wei-feng LIU Qian-qian ZHOU Jin-jun liang wei-hong XIE Xian-zhi High-Tech Research Center Shandong Academy of Agricultural Sciences College of Life Science Henan Normal University College of Life Sciences Shandong Normal University

The expression patterns of OsPILll, one of six putative phytochrome-interacting factors, were analyzed in different organs of transgenic tobacco （Nicotiana tabacum）. The expression of OsPIL 11 was organ-specific and was regulated by leaf development, abscisic acid （ABA）, jasmonic acid （JA） and salicylic acid （SA）. To further explore the role of OsPIL 11 in plant light signal transduction, a plant expression vector of OsPILll was constructed and introduced into tobacco. When grown under continuous red light, OsPILll-overexpressed transgenic tobacco exhibited shorter hypocotyls and larger cotyledons and leaves compared to wild-type seedlings. When grown under continuous far-red light, however, transgenic and wild-type seedlings showed similar phenotypes. These results indicate that OsPILll is involved in red light induced de-etiolation, but not in far-red light induced de-etiolation in transgenic tobacco, which lays the foundation for dissecting the function of OsPIL11 in phytochrome-mediated light signal transduction in rice.

关键词： rice phytochrome-interacting factor transgenic tobacco light signal transduction

Improvement of the Quality of a GaN Epilayer by Employing a SiN_(x) Interlayer

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Chinese Physics Letters 2012年第8期29卷 257-260页

作者： YANG De-Chao liang hong-wei SONG Shi-wei LIU Yang SHEN Ren-Sheng LUO Ying-Min ZHAO Hai-Feng DU Guo-Tong State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130023 School of Physics and Optoelectronic Technology Dalian University of TechnologyDalian 116024 Key Laboratory of Excited State Processes Changshun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033

GaN epilayers with a porous SiN_(x) interlayer were grown by metal-organic chemical vapor deposition on c-plane sapphire *** is found that the crystalline qualities are significantly improved with SiN_(x) *** improvement is attributed to the reduction of the density of threading dislocations(TDs)by an over-growth process of GaN grown on a SiN_(x) *** influence mechanism of SiN_(x) interlayers on GaN growth mode is also discussed.

关键词： GaN sapphire interlayer

Global Well-posedness of the Generalized Long-short Wave Equations

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Chinese Quarterly Journal of Mathematics 2006年第4期21卷 538-544页

作者： ZHANG Rui-feng liang hong-wei College of Mathematics and Information Science Henan University Kaifeng 475001 China

In the present paper, we investigate the well-posedness of the global solutionfor the Cauchy problem of generalized long-short wave equations. Applying Kato＇s methodfor abstract quasi-linear evolution equations and a... 详细信息

关键词： the generalized long-short wave equations Kato's method uniformly a prioriestimate global well-posedness

Cloning and Analysis of the Promoters of Two OsRhoGDIs Genes from Rice

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Agricultural Sciences in China 2008年第7期7卷 789-795页

作者： ZHANG Li-juan liang wei-hong LIU Yue-xia LIU Xiao-fei HOU Cheng-qian BI Jia-jia College of Life Science Henan Normal University Xinxiang 453007 P.R. China

OsRacD, belonging to rice （Oryza sativa L. ssp. japonica） Rho family of the small GTPases, is a pivotal gene involved in rice photoperiod fertility conversion of photoperiod sensitive genic male sterile rice which influences the rice fertility via controlling the pollen tube growth. Using OsRacD as bait, two GDP dissociation inhibitor genes designated as OsRhoGDI1 and OsRhoGDI2 were screened by yeast two-hybrid system. To further study the regulation mechanism of OsRhoGDIs, and also the relationships between OsRhoGDIs and OsRacD, the upstream regulation sequences of OsRhoGDI1 and OsRhoGDI2 were cloned by PCR, and the cis-elements in the promoters were predicted using internet tools in this study. The results showed that there were several kinds of response elements, such as phytohormone response elements, lightregulated elements and adversity induced elements in the promoters of OsRhoGDIs, some of which were similar. Comparing with the promoter of OsRacD, several pollen tube germination related elements were found. On one hand, the expression and regulation mechanism of OsRhoGDIs were complex, they may be regulated by several signaling pathways commonly, and the regulation mechanisms were similar to some extent. On the other hand, it was suggested that the fertility of photoperiod sensitive genic male sterile rice may be controlled by the cooperative expression of OsRhoGDIs and OsRacD.

关键词： rice OsRhoGDIs Rho OsRacD cis-acting elements