Regularity of Poisson equation in some logarithmic space

In this note, the regularity of Poisson equation -△u = f with f lying in logarithmic function space Lp(LogL)a(Ω)(1＜p ＜∞, a ∈ R) is studied. The result of the note generalizes the W2,p estimate of Poisson equation in Lp(Ω).     

Exciton-Dependent Pre-formation Probability of Composite Particles

In Iwamoto-Harada model the whole phase space is full of fermions. When the momentum distributions of the exciton states are taken into account, the pre-formation probability of light composite particles could be improved, and the exciton state-dependent pre-formation probability has been proposed. The calculated results indicate that the consideration of the momentum distribution enhances the pre-formation probability of [1, m] configuration, and suppresses that of [ι 〉 1, m] configurations seriously.     

Pressure-Induced Shift of R-Line of MgO:Cr3+ with Electron-Phonon Interaction Effect

By means of improved ligand-field theory, the "pure electronic" pressure-induced shift (PS) and the PS due to electron-phonon interaction (EPI) of R-line of MgO:Cr3 have been calculated, respectively. The calculated results are in very good agreement with the experimental data. The behaviors of the pure electronic PS of R-line of MgO:Cr3 and the PS of its R-line due to EPI are different. It is the combined effect of them that gives rise to the total PS of R-line, which has satisfactorily explained the experimental results. The comparison between the feature of R-line PS of MgO:Cr3 and that of R1-line PS of ruby has been made.     

Quantum Corrections to the Radiation of Schwarzschild-anti-de Sitter Black Hole with Topological Defect

We extend Zhang and Zhao＇s recent work to the Schwarzschild-anti-de Sitter black hole with topological defect, whose Arnowitt-Deser-Misner （ADM） mass is no longer identical to its mass parameter. The behavior of the tunneling massive particle is investigated and the emission rate is calculated. The result satisfies an underlying unitary theory and takes the same functional form as that of the mass-less particle.     

《高等学校化学学报》征稿简则

《高等学校化学学报》是中华人民共和国教育部主办的化学学科综合性学术期刊,除重点报道我国高等学校师生基础研究和应用研究方面具有创造性的研究成果外,还积极报道中国科学院及其他研究机构所属研究人员的最新成果。1　栏目设置1.1　学术论文　报道学术水平高、社会效益或经济效益大并具有创新性的研究成果。全文(包括图、表、参考文献、中英文摘要及关键词等)一般在6000字左右。1.2　研究快报　及时报道重要研究领域和学科发展前沿的领先成果(来稿时请附发表快报理由,刊登后仍可发表论文),全文限3000字以内,不列中文摘要,英文摘要内容应…     

Lie-Form Invariance of a Type of Non-holonomic Singular Systems

In this paper, the Lie-form invariance of a type of non-holonomic singular systems is studied. The differential equations of motion of the systems are given. The definition and the criterions of the Lie-form invariance for the systems are presented. The Hojman conserved quantity and the Mei conserved quantity are obtained. An example is given to illustrate the application of the results.     

Structural stability and electrical properties of AlB2-type MnB2 under high pressure

The structural stability and electrical properties of AlB2-type MnB2 were studied based on high pressure angledispersive x-ray diffraction, in situ electrical resistivity measured in a diamond anvil cell(DAC) and first-principles calculations under high pressure. The x-ray diffraction results show that the structure of AlB2-type MnB2 remains stable up to 42.6 GPa. From the equation of state of MnB2, we obtained a bulk modulus value of 169.9±3.7 GPa with a fixed pressure derivative of 4, which indicates that AlB2-type MnB2 is a hard and incompressible material. The electrical resistance undergoes a transition at about 19.3 GPa, which can be explained by a transition of manganese 3d electrons from localization to delocalization under high pressure.     

第十二届全国周培源大学生力学竞赛(个人赛)试题

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《化学通报》网络版(Chemistry Online)2001年5月论文摘要

引用方法 :作者 (多位作者间以逗号隔开 ) .题目 .化学通报 ,年 ,卷 :Ｗ××× (×××为网络版目次中序号的后三位 ) .[Ｗ 0 1 0 4 3]多对强反应电解质形成的多移动化学反应界面研究Ｍｕｌｔｉ ｍｏｖｉｎｇＣｈｅｍｉｃａｌＲｅａｃｔｉｏｎＢｏｕｎｄａｒｉｅｓＦｏｒｍｅｄｂｙＭｕｌｔｉ ｐａｉｒｓｏｆＳｔｒｏｎｇＲｅａｃｔｉｏｎＥｌｅｃｔｒｏｌｙｔｅｓ周天承 (芜湖职业技术学院轻化系　安徽芜湖　 2 4 1 0 0 1 )文章推导出了由多对强反应电解质形成的多移动化学反应界面方程 (ＭＭＣＲＢＥ :Ｓ) ,通过与移动化学反应界面方程 (…