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Pressure-induced crystallite breaking in La_(0.7)Sr_(0.3)Mn_(0.9)Fe_(0.1)O_3 nanosolids

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Chinese science Bulletin 1998年第6期43卷 458-461页

作者： ZHENG Fanlei 1, 2, SUI Yu 1, 3, XU Dapeng 1 and SU Wenhui 1, 4 1. department of Physics, jilin university, changchun 130023, china 2. changchun Institute of Physics, Chinese Academy of sciences, changchun 130021, china 3. Institute of Metal R department of Physics Jilin University Changchun Chinas changchun Institute of Physics Chinese Academy of Sciences Changchun China Institute of Metal Research Chinese Academy of Sciences Shenyang China International Center for Materials Physics Chinese Academy of Sceinces Shenyang China Center for Condensed Matter and Radiation Physics CCAST (World Lab.) Beijing China

In the compacting process of the La 0.7Sr 0.3Mn 0.9Fe 0.1O 3 nanosolids under the pressure range of 0.0-4.5 GPa, the apparent pressure-induced crystallite breaking phenomenon in these nanosolids was observed. With increasing pressure up to 4.5 GPa, the average grain size decreases by 46% while the magnetization of nanosolids decrease by 40% and their coercive increases by 35%. This kind of breaking has a close relation to the existence of oxygen deficiency in La 0.7Sr 0.3Mn 0.9Fe 0.1O 3 nanoparticles. A simple and convenient method for preparing the bulk nanosolids with a large number of clean interfaces has been suggested.

关键词： nanosolid pressure-induced breaking high pressure.

Construction of EGFP-tagged rBCG of *** and distribution in chickens

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science china(Life sciences) 2009年第3期52卷 278-283页

作者： WANG QiuYue1,LI JianHua1,ZHANG XiChen1,LIU ChengWu2,CAO LiLi1,REN KeYan3,GONG PengTao1,CAI YaNan11 College of Animal science and Veterinary Medicine,jilin university,changchun 130062,china 2 Shenyang Police Dog Training School,Shenyang 110034,china 3 Veterinary science Institute of jilin Province,changchun 130062,china 1. College of Animal science and Veterinary Medicine Jilin University Changchun 130062 China 2. Shenyang Police Dog Training School Shenyang 110034 China 3. Veterinary science Institute of jilin Province Changchun 130062 China

Chicken coccidiosis is a major parasitic disease with substantial economic burden to the poultry *** green fluorescent protein(EGFP) tagged recombinant Bacille Calmette-Guerin(rBCG),as a fusion protein with coccidian rhomboid antigen was constructed to track rBCG in vivo in chickens in this *** of chickens with one dose of rBCG pMV361-Rho/EGFP induced humoral immune *** colonization of rBCG in liver,spleen,lung,kidney and caecum was observed by laser confocal ***-time quantitative RT-PCR showed a rise expression level of rhomboid protein on the 7th day and a peak on the 14th day and disappearance on the 28th day after *** results have significant implications for the development of rBCG vaccines against avian coccidiosis.

关键词： coccidiosis rBCG EGFP rhomboid laser confocal microscopy real-time RT-PCR

Efficient estimation for additive hazards regression with bivariate current status data

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science china Mathematics 2012年第4期55卷 763-774页

作者： TONG XingWei 1,,HU Tao 2 & SUN JianGuo 3,4 1 School of Mathematical sciences,Beijing Normal university,Beijing 100875,china 2 School of Mathematical sciences,Capital Normal university,Beijing 100048,china 3 School of Mathematics,jilin university,changchun 130012,china 4 department of Statistics,university of Missouri,Columbia,MO 65211,USA 1. School of Mathematical sciences Beijing Normal University Beijing 100875 China2. School of Mathematical Sciences Capital Normal University Beijing 100048 China3. School of Mathematics Jilin University Changchun 130012 China4. Department of Statistics University of Missouri Columbia MO 65211 USA

This paper discusses efficient estimation for the additive hazards regression model when only bivariate current status data are available. Current status data occur in many fields including demographical studies and tumorigenicity experiments （Keiding, 1991; Sun, 2006） and several approaches have been proposed for the additive hazards model with univariate current status data （Linet M., 1998; Martinussen and Scheike, 2002）. For bivariate data, in addition to facing the same problems as those with univariate data, one needs to deal with the association or correlation between two related failure time variables of interest. For this, we employ the copula model and an efficient estimation procedure is developed for inference. Simulation studies are performed to evaluate the proposed estimates and suggest that the approach works well in practical situations. An illustrative example is provided.

关键词： bivariate current status data copula model counting processes efficient estimation joint survivalfunction

ALUMINUM CONTENT OF TEA LEAVES AND FACTORSAFFECTING THE UPTAKE OF ALUMINUM FROMSOIL INTO TEA LEAVES

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Chinese Geographical science 2001年第1期11卷 87-91页

作者： XIE Zhong-lei, DONG De-ming, BAO Guo-zhang, WANG Sheng-tian, DU Yao-guo,QIU Li-min (department of Environmental science and engineering, jilin university, changchun 130023, P. R. china department of Chemistry, Northeast Normal university, changchun 13002 department of Environmental science and engineering Jilin University Changchun P. R. China department of Chemistry Northeast Normal University Changchun P. R. China

Numerous studies indicated that aluminum, the most abundant metallic element within the lithosphere, was considered to be related to some human diseases especially the Alzheimer’s disease. Tea, economically an important beverage in the world, has been found to contain higher concentration of aluminum than many other drinks and foods. Therefore, tea would be a potentially important source of dietary aluminum. In order to understand the sources of aluminum in tea leaves and factors related with aluminum content of tea leaves, an experiment was designed to investigate the relationships of aluminum in tea leaves with leaf age, soil properties and forms of aluminum in soils. The results showed that there were great distinctions in the concentration of aluminum in tea leaves with different leaf age (Alold leaf> Almature leaf> Alyoung leaf). Moreover, soil pH was the major factor controlling the uptake of aluminum from soil into tea leaves. Furthermore, the content of aluminum in tea leaves was better predicated by the soluble aluminum extracted by 0.02mol/L CaCl2.

关键词： aluminum tea leaf soil properties

SOME QUALITATIVE PROPERTIES OF SOLUTIONSTO A SECOND-ORDER NONLINEAR BOUNDARY VALUE PROBLEM ON[0,+∞)

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Systems science and Mathematical sciences 1999年第3期12卷 281-288页

作者： KONG Lingbin(department of Mathematics, Daqing Petroleum Institute, Anda, 151400, china)WANG Junyu(department of mathematics, jilin university, changchun 130023, china) 大庆石油学院数学系黑龙江安达 151400 吉林大学数学系吉林长春 130023

The authors explore some qualitative properties of solutions to a second-ordernonlinear boundary value problem on , which arises in the search of similaritysolutions for a power-law fluid or a generalized diffusion pr... 详细信息

关键词： Nonlinear boundary value problem compact support monotonicity uniqueness dependence upon the parameter.

EFFECT OF CURRENT DENSITY ON AMORPHOUS Al-Mn ELECTRODEPOSITON

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中国有色金属学会会刊：英文版 1998年第2期8卷 114-116页

作者： Li Jianchen, Lu Xiaoxia and Jiang Qingdepartment of Materials science and engineering, jilin university of Technology, changchun 13.025, P. R. china

ＥＦＦＥＣＴＯＦＣＵＲＲＥＮＴＤＥＮＳＩＴＹＯＮＡＭＯＲＰＨＯＵＳＡｌＭｎＥＬＥＣＴＲＯＤＥＰＯＳＩＴＯＮ①ＬｉＪｉａｎｃｈｅｎ，ＬｕＸｉａｏｘｉａａｎｄＪｉａｎｇＱｉｎｇＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓ... 详细信息

ＥＦＦＥＣＴＯＦＣＵＲＲＥＮＴＤＥＮＳＩＴＹＯＮＡＭＯＲＰＨＯＵＳＡｌＭｎＥＬＥＣＴＲＯＤＥＰＯＳＩＴＯＮ①ＬｉＪｉａｎｃｈｅｎ，ＬｕＸｉａｏｘｉａａｎｄＪｉａｎｇＱｉｎｇＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃｅａｎｄＥｎｇｉｎｅｒ...

关键词： current density amorphous AlMn electrodeposition composition of electrodeposition

Data Acquisition and Processing of Electronic Compass for Mobile Robot Autonomous Navigation

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Data Acquisition and Processing of Electronic Compass for Mo...

Lattice Boltzmann solver of Rossler equation

2012 National Conference on Information Technology and Computer science

作者： Jingwei QIN department of computer,jilin Business and Technology College,changchun,china Yimu GUO department of electrical engineering,changchun university of science and Technology,changchun,china Miaolei ZHOU department of control science and engineering,jilin university,changchun,china

Electronic compass is a kind of absolute sensor that can measure the azimuth by use of the earth’s magnetic *** compass is widely applied in mobile robot autonomous *** electronic compass applied to a certain kind of out-door mobile robot is introduced in this *** format of electronic compass is *** acquisition method in Linux operating system is presented in *** results show that the proposed method can obtain stable angle data,can meet the navigation demand of outdoor autonomous mobile robot.

关键词： electronic compass data acquisition USB communication robot

来源： cnki会议评论

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Communications in Nonlinear science and Numerical Simulation 2000年第2期5卷 64-68页

作者： Guangwu YAN and Li RUAN (LSEC Institute of Computational Mathematics, Academy of Mathematics and System sciences, Chinese Academy of sciences, Beijing 100080, china department of Mathematics, jilin university, changchun 130023, china) LSEC Institute of Computational Mathematics Academy of Mathematics and System Sciences Chinese Academy of Sciences Beijing 100080 China department of Mathematics Jilin University Changchun 130023 China

We proposed a lattice Boltzmann model for the Rossler equation. Using a method of multiscales in the lattice Boltzmann model, we get the ditheion reaction as a special case. If the diffusion effect disappeared, we can obtain the lattice Boltzmann solution of the Rossler equation on the mesescopic scale. The numericale results show the method can be used to simulate Rossler equation.

关键词： lattice Boltzmann method multiscale technique Rossler equation

Ab initio theoretical studies on N_(28),B_4N_(24),B_(12)N_(16), and B_(16)N_(12) with T_d symmetry

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Chinese Journal of Chemistry 1996年第6期14卷 490-496页

作者： JIANG, Xin-Tian HU, Xu-Guang LI, Qian-Shu department of Chemistry, Shaanxi Teachers university, Xi’an, Shanxi 710062, china Institute of Theoretical Chemistry, National Laboratory of Theoretical and Computational Chemistry, jilinuniversity, changchun, jilin 130023, chinaSchool of Chemical engineering and Materials science, Beijing Institute of Technology, Beijing 100081,china department of Chemistry Shaanxi Teachers University Xi'an Shanxi 710062 China Institute of Theoretical Chemistry National Laboratory of Theoretical and Computational Chemistry Jilin University Changchun Jilin 130023 China School of Chemical engineering and Materials science Beijing Institute of Technology Beijing 100081 China

Structures, energies and vibrational frequencies have been calculated for hollow cage clusters N28, B4N24, B12N16, and B16N12 with Td symmetry using ab initio quantum mechanical methods at the RHF/3-21G level. Each species is predicted to be both chemically and kinetically stable. Skeletal polyhedrons of all considered boron nitride hollow cage clusters are constructed from 5- and 6-membered rings.

关键词： Nitrogen cluster boron nitride cluster ab initio molecular orbital theory fullerene