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Chinese Physics B 2014年第5期23卷 397-403页

作者：李联和刘官厅 College of Mathematics science Inner Mongolia Normal University College of Physical science and technology Inner Mongolia University inner mongolia Key Laboratory of Nanoscience and Nanotechnology

The complex variable method for solving the two-dimensional thermal stress problem of icosahedral quasicrystals is stated. The closed-form solutions for icosahedral quasicrystals containing an elliptical hole subjected to a remote uniform heat flow are obtained. When the hole degenerates into a crack, the explicit solutions for the stress intensity factors is presented.

关键词： icosahedral quasicrystals thermal stress elliptic hole stress intensity factors

Photoluminescence and cathodoluminescence properties of a novel CaLaGa_3O_7:Dy^(3+) phosphor

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Chinese science Bulletin 2012年第7期57卷 827-831页

作者： ZHAO WenYu1,2, AN Shengli1, FAN Bin1, li SongBo1 & DAI YaTang3 1 School of Metallurgical and Ecological Engineering, university of science and technology Beijing, Beijing 100083, China 2 School of Chemistry and Chemical Engineering, inner mongolia university of science and technology, baotou 014010, China 3 School of Materials science and Engineering, Southwest university of science and technology, Mianyang 621000, China School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing China School of Chemistry and Chemical Engineering Inner Mongolia University of Science and Technology Baotou China School of Materials science and Engineering Southwest University of Science and Technology Mianyang China

A single host white emitting phosphor, CaLaGa3O7:Dy3+, was synthesized by chemical co-precipitation. Field emission scanning electron microscopy, X-ray diffraction, laser particle size analysis, and photoluminescence and cathodoluminescence spectra were used to investigate the structural and optical properties of the phosphor. The phosphor particles were composed of microspheres with a slight tendency to agglomerate, and an average diameter was of about 1.0 μm. The Dy3+ ions acted as luminescent centers, and substituted La3+ ions in the single crystal lattice of CaLaGa3O7 where they were located in Cs sites. Under excitation with ultraviolet light and a low voltage electron beam, the CaLaGa3O7:Dy3+ phosphor exhibited the characteristic emission of Dy3+ (4F9/2-6H15/2 and 4F9/2-6H13/2 transitions) with intense yellow emission at about 573 nm. The chromaticity coordinates for the phosphor were in the white region. The relevant luminescence mechanisms of the phosphor are investigated. This phosphor may be applied in both field emission displays and white light-emitting diodes.

关键词：光致发光阴极射线荧光粉镝离子场发射扫描电子显微镜白色发光二极管特性 X射线衍射仪

Complex genetic algorithm in continuous space

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Chinese science Bulletin 1999年第10期44卷 954-960页

作者： li Qiang and ZHOU Ji Department of Mechanical Engineering, inner mongolia Polytechnic university, Hohhot 010062, China CAD Center, Huazhong university of science and technology , Wuhan 430072, China Department of Mechanical Engineering Inner Mongolia Polytechnic University Hohhot China CAD Center Huazhong University of Science and Technology Wuhan China

A new artificial intelligent optimization method, complex genetic algorithm, is presented, and the theoretical analysis for the effective optima-seeking mechanism of the algorithm is finished. The example calculation ... 详细信息

关键词： continuous space complex genetic algorithm artificial intelligent optimization.

Comparative Study of Impacting Factors of Grain Production of inner mongolia Region in Different Periods

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Asian Agricultural Research 2011年第2期3卷 49-52页

作者： HAN Xiu-feng baotou Teachers College,inner mongolia university of science and technology,baotou 014030,China

On the basis of grey correlation analysis,8 factors impacting grain production prominently as follows are selected to establish indices system:yield per unit(X1),grain planting area(X2),agricultural labor forces(X3),the total power of agricultural machinery(X4),using amount of fertilizer(X5),the damaged area of crops(X6),effective irrigation area(X7),and agricultural fixed assets investment(X8).According to the relevant data of inner mongolia Statistical Yearbook from 1988 to 2008,we use the method of grey correlation analysis to analyze the factors impacting grain production in inner mongolia,quantify the correlation degree of the total grain output and all factors,and finally conclude the impacting capacity of all factors on grain production in the light of correlation degree *** results show that yield per unit still is the principal factor impacting the total output of grain in inner mongolia;the area of grain planting and the area of affected crops are the two most important factors responsible for the decrease of grain output;effective irrigation area the total power of agricultural machinery are the two primary factors impacting the increase of grain output;the using amount of fertilizer shows dwindling impact on grain production;agricultural fixed assets investment still hovers at the minuscule impact degree on grain production.

关键词： Grain production Grey correlation analysis inner M

Complex variable method for plane elasticity of icosahedral quasicrystals and elliptic notch problem

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science China(Physics,Mechanics & Astronomy) 2008年第7期51卷 773-780页

作者： li lianHe1,2 & FAN TianYou1 1 Department of Physics, Beijing Institute of technology, Beijing 100081, China 2 College of Mathematics science, inner mongolia Normal university, Hohhot 010022, China Department of Physics Beijing Institute of Technology Beijing China College of Mathematics science Inner Mongolia Normal University Hohhot China

The complex variable method for the plane elasticity theory of icosahedral quasicrystals is developed. Based on the general solution obtained previously, complex representations of stress and displacement components of phonon and phason fields in the quasicrystals are given. With the help of conformal transformation, an analytic solution for the elliptic notch problem of the material is presented. The solution of the Griffith crack problem can be observed as a special case of the results. The stress intensity factor and energy release rate of the crack are also obtained.

关键词： icosahedral quasicrystals plane elasticity elliptic notch complex variable method

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稀土蓝绿色荧光体性能分析

稀土 2004年第3期25卷 20-22页

作者：李玉林内蒙古科技大学生物与化学工程学院内蒙古包头014010

对自制蓝绿色荧光体Sr4-x1-x2Mx1Eux2Al14O25(M=Ca,Ba,Mg)进行了X光衍射分析、粒度分析、光通维持性和热稳定性测试,结果表明,所合成的荧光体适用于具有高显色指数的多频带发射荧光灯。

关键词：蓝绿色荧光体性能测试

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稀土重轨钢的静态再结晶研究

中国稀土学报 2011年第4期29卷 407-410页

作者：包喜荣陈林李刚内蒙古科技大学材料与冶金学院

通过Gleeble-1500D型热模拟机对REⅡ稀土重轨钢进行应变速率为5 s-1、变形量均为25%的双道次热压缩模拟试验,分别测定820,850,880,1000℃下的真应力-真应变曲线,采用后插法计算奥氏体等温变形后道次间隙时间1～1200 s内的软化率,研究RE... 详细信息

通过Gleeble-1500D型热模拟机对REⅡ稀土重轨钢进行应变速率为5 s-1、变形量均为25%的双道次热压缩模拟试验,分别测定820,850,880,1000℃下的真应力-真应变曲线,采用后插法计算奥氏体等温变形后道次间隙时间1～1200 s内的软化率,研究REⅡ稀土重轨钢的静态再结晶规律。结果显示:当变形温度为>1000℃时,REⅡ重轨钢完成静态再结晶弛豫时间<90 s;当变形温度<820℃时,静态再结晶很难进行,即使弛豫时间延长至1000 s,再结晶百分数也只有38.8%;当变形温度为850和880℃时,再结晶过程会出现析出现象,对抑制静态再结晶的进行有影响,导致软化率曲线上出现了平台。

关键词：重轨钢静态再结晶软化率稀土

Effect of hormonal status and metabolic changes of restricted ewes during late pregnancy on their fetal growth and development

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science China(life sciences) 2007年第6期50卷 766-772页

作者： GAO feng1, HOU XianZhi1 & liU YingChun2 1 College of Animal science and Animal Medicine, inner mongolia Agricultural university, Huhhot 010018, China 2 College of Biotechnology and Bioengineering, inner mongolia Agricultural university, Huhhot 010018, China College of Animal science and Animal Medicine Inner Mongolia Agricultural University Huhhot China College of Biotechnology and Bioengineering Inner Mongolia Agricultural University Huhhot China

This study investigated the effects of hormonal status; metabolic changes of restricted ewes during late pregnancy on the ovine fetus growth; development. One hundred mongolian ewes, synchronized for oestrus; mated, were divided into three groups; offered 0.175 MJME·kgw[0.75]·d[1] (Restricted Group 1, RG1), 0.33 MJME·kgw[0.75]·d[1] (Restricted Group 2, RG2); ad libitum access to feed (Control Group, CG) during their late pregnancy respectively. The results suggested that with the supply of exogenous energy decreasing during late pregnancy, maternal body weight; net body weight loss in RG2; RG1 were lower than those of CG (Ps0.01). The insulin; IGF-1 concentrations of ewes in RG2; RG1 tended to be lower than those of CG (P>0.05), but the GH concentrations in RG2; RG1 were enhanced; there was significant difference between RG1; CG on d 120 of gestation (P0.05). However, the NEFA; FAA concentrations of ewes in RG1 were reduced from d 90 to d 120 of gestation, then enhanced from d 120 to d 140 of gestation. During the late pregnancy, with the supply of nutrition decreasing, the negatively physiological; biochemical maternal reactions to restriction became worse, which significantly reduced the average lamb birth weight; daily growth rate of fetus in RG2 (P<0.05); RG1 (P<0.01).

关键词： late pregnancy restricted ewes fetus growth development

Effect of interaction and temperature on quantum phase transition in anisotropic square-octagon lattice

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Chinese Physics B 2015年第5期24卷 257-261页

作者：保安张雪峰章晓中 Laboratory of Advanced Materials School of Materials Science and Engineering Tsinghua University School of Mathematics Physics and Biological Engineering Inner Mongolia University of Science and Technology

We investigate the effect of interaction, temperature, and anisotropic parameter on the quantum phase transitions in an anisotropic square-octagon lattice with fermions under the framework of the single band Hubbard model through using the combination of cellular dynamical mean field theory and a continuous time Monte Carlo algorithm. The competition between interaction and temperature shows that with the increase of the anisotropic parameter, the critical on-site repulsive interaction for the metal-insulator transition increases for fixed temperature. The interaction-anisotropic parameter phase diagram reveals that with the decrease of temperature, the critical anisotropic parameter for the Mott transition will increase for fixed interaction cases.

关键词： anisotropic square-octagon lattice fermions quantum phase transition cellular dynamical mean field theory