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Transport for a System with Additive Temporal-Spatial Noise

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Communications in Theoretical Physics 2004年第2期41卷 215-218页

作者： lijing-Hui HANYin-Xia CHENShi-Gang CenterforNonlinearStudies InstituteofAppliedPhysicsandComputationalMathematicsP.O.Box8009（28）Beijing100088China GraduateSchoolofChinaAcademyofEngineeringPhysics P.O.Box2101Beijing100088China

In this paper, we study the transport of the system with the additive temporal-spatial noise, by two models, i.e., a spatial asymmetry model and a spatial symmetry model. The study shows that the correlation of the ad... 详细信息

关键词： transport temporal-spatial noise

Calculation of Quark Condensate in Nuclear Matter with the Chiral Symmetry Spontaneous Breaking Lagrangian

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Communications in Theoretical Physics 2001年第2期36卷 195-198页

作者： lijing－Wu LUXiao－Fu DepartmentofPhysics SichuanUniversityChengdu610064China DepartmentofPhysics SichuanUniversityCheng

Using the chiral symmetry spontaneous breaking Lagrangian with mean-field approximation, we investigate the in-medium quark condensate . It is found that the condensate decreases as the nuclear matter density increases. Meanwhile, the desent deviates from the linear decrease and becomes remarkably slow as the density of the nuclear matter further increases. It shows that the chiral symmetry spontaneous breaking is only partially restored in densed nuclear matter.

关键词： chiral symmetry spontaneous breaking Lagrangian mean-field theory effective mass Hellmann-Feynman theory quark condensate

Effect of Zr Addition on Resistance to High Temperature Softening and Resistivity of 6082 Al-Mg-Si Alloys

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材料热处理学报 2004年第5期25卷 143-146页

作者： JINMan SUNBao-liang ZHANGPei-pei lijing SHAOGuang-jie MaterialScienceDepartment ShanghaiUniversity200072ShanghaiChina ShanghaiHuizhongAutomotiveManufacturingCo. Ltd.ShanghaiChina

The influence of zirconium on the resistance to high temperature softening of 6082 Al-Mg-Si alloys has been researched. The softening process of 6082 alloys with Zr and without Zr, isothermally conditioned at 250°C, has been investigated. The results show the inclusion of Zr inhibits the decrease of HB in hardness(HB) compared with the alloys without Zr. This is due to the Zr and Al forming coherent dispersoid-A!3Zr, and Al3Zr particles within an Al matrix, which effectively restricts grain boundary movement. A study is also carried out to investigate the changes in resistivity, which occurs during the ageing of alloys containing Zr, compared to those without Zr. It is found that in both cases there is an initial rapid rise in resistivity followed by a slower rise in resistivity as ageing proceeds. The value of resistivity is lower for 6082 alloys with Zr compared with 6082 alloys without Zr; this is explained in terms of the role of Zr in the 6082 alloys.

关键词：高温软化阻力 6082Al-Mg-Si合金锆

2017 was the Warmest Year on Record for the Global Ocean

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Advances in Atmospheric Sciences 2018年第3期35卷 261-263页

作者： lijing CHENG Jiang ZHU International Center for Climate and Environment Sciences Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

2017 was the warmest year on record for the global ocean according to an updated Institute of Atmospheric Physics, Chinese Academy of Sciences （IAR CAS： http：//english. ***/） ocean analysis.

关键词： was the Warmest Year on Record for the Global Ocean IAP XBT

Transport for System with Three-Value Poissonian Noise

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Communications in Theoretical Physics 2004年第6X期42卷 835-838页

作者： HANYin-Xia lijing-Hui CHENShi-Gang GraduateSchooloftheChineseAcademyofEngineeringPhysics P.O.Box2101Beijing100088China//CenterforNonlinearStudiesInstituteofAppliedPhysicsandComputationalMathematicsP.O.Box8009(28)Beijing100088China CenterforNonlinearStudies InstituteofAppliedPhysicsandComputationalMathematicsP.O.Box8009(28)Beijing100088//ChinaCCAST(WorldLaboratory)P.O.Box8730Beijing100080China

The transport of the overdamped Brownian particles in a spatially periodic potential subject to the three value Poissonian noise in the stationary state is considered. We show that for the spatially periodic potential, no matter whether it is asymmetric, or is symmetric, flux can be induced. But the mechanism is different. The former is the common action of broken reflection symmetry and transition among three-value Poissonian noise in a cyclic way; the latter is single behavior of transition among three-value Poissonian noise in a cyclic way.

关键词：三值泊松噪音主方程数学模型周期对称传播

HARNACK'S INEQUALITY FOR GENERALIZED SUBELLIPTIC SCHRDINGER OPERATORS

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Analysis in Theory and Applications 2008年第3期24卷 247-259页

作者： lijing Sun University of Wisconsin-Milwaukee USA

We prove a uniform Harnack μu = 0, where △G is a sublaplacian, μ is scale-invariant Kato condition. inequality for nonnegative solutions of △u - a non-negative Radon measure and satisfying

关键词： Harnack's inequality Subelliptic Schrodinger equation

Study and Commercial Application of Graded Optimization of Catalysts for Fixed Bed Residue Upgrading Unit

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China Petroleum Processing & Petrochemical Technology 2007年第2期9卷 29-33页

作者： Han Zhaoming Jiang lijing Fushun Research Institute of Petroleum and Petrochemicals Fushun 113001

The SHIFT-G technology of inverse catalyst loading is used to optimize the catalyst grading in the residue hydrotreating unit. The results, taken from pilot tests and commercial units, have showed that the optimized catalyst grading system can reasonably distribute the reaction load, effectively improve the prop- erties of hydrotreated products, prolong the operating cycle and promote economic benefits.

关键词： residue hydrotreating fixed bed catalyst grading load commercial application

Flux for a System with Infinite Globally Coupled Oscillators Driven by Temporal-Spatial Noises

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Communications in Theoretical Physics 2003年第6X期40卷 665-668页

作者： HANYin-Xia lijing-Hui CHENShi-Gang CenterforNonlinearStudies InstituteofAppliedPhysicsandComputationalMathematicsP.O.Box8009(28)Beijing100088China GraduateSchoolofChinaAcademyofEngineeringPhysics P.O.Box2101Beijing100088China

The transport of a spatially periodic system with infinite globally coupled oscillators driven by temporalspatial noises is investigated. The probability current shows that the correlation of the multiplicative noises with the space, the spatial asymmetry, and the coupling among the different oscillators are ingredients for the transport of particles. It is a new phenomenon that the correlation of the multiplicative noises with the space can induce the nonzero flux.

关键词：时空噪声传输空间周期系统球形振荡器多腔噪声非零流

The Algorithm of Fractal Image Block Coding Based on the Ortho Difference Sum

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The Algorithm of Fractal Image Block Coding Based on the Ort...