关于Perfect环的一个注记

对于交换环R,Chase[1]证明:对任意集A,若R^A是射影模,则R是一个Artin环.而对非交换环,有例子说明,此结论不成立.本文讨论了对什么环,当R是射影模时,R是一个Artin环.     

右Serial环中Jacobson猜想的刻划

本文的主要目的是从模的角度对右Serial环中的Jacobson猜想进行刻划,得到的主要结果是:定理设R是右Serial环,J是R的Jacobson根,则下列命题等价.     

微接触印刷法直接制备图案化TiO2薄膜

A novel process to gain clear and high edge acuity micropatterns of TiO2 thin films by direct microcontact printing was presented in this paper. Using TiO2 sol as the “ink”, poly (dimethylsiloxane) elastomeric stamp was taken to transfer the TiO2 colloids to the substrate. The process is different from the traditional process using the SAMS to induce the deposition of TiO2. The new way increases the transferred efficiency of the micropatterned TiO2 thin films. The optical micrographs and SEM show that the micropatterned structures of TiO2 were microscale and uniform over a large area as well.     

OPTICAL ISOTOPE SHIFTS AND CONFIGURATION MIXING AT THE LEVEL (26772)011/2 IN Nd II

Optical isotope shifts in the transition 4f⁴5d ⁶I_11/2-(26772)⁰_11/2 of Nd II were measured by using collinear fast-ion-beam laser spectroscopy. The configuration admixtures of the previously unclassified (26772)⁰_11/2 level were quantitatively analyzed to be 4f⁴6p, 4f³5d², and 4f³5d6s with mixing probabilities of 13%, 85%, 2%, respectively.     

(p,λ)-Koszul模和有线性表示的模(英文)

在本文中,主要讨论了(p,λ)-Koszul模范畴(K_λ~P(A))和线性表示模范畴(L(A))两者之间的关系.特别地,我们得到了K_λ~P(A)=L(A)的一些充分必要条件.     

多孔阳极氧化铝膜的制备及其在一维纳米材料合成中的应用

从一维纳米材料的研究范畴入手 ,综述了多孔阳极氧化铝膜的结构特征、形成机理以及作为模板在合成纳米导电聚合物、纳米金属、纳米半导体、纳米复合材料及碳纳米管等方面的研究与应用的最新进展 ,揭示了多孔阳极氧化铝模板在合成与组装纳米新材料方面的重要作用 .     

镧系配合物的荧光光谱

对镧系配合物荧光光谱的研究进展进行了评述,并对其光物理、光化学进行了归纳、分类,特别是对目前研究非常活跃的镧系离子荧光探针法在配合物和生物分子体系结构探测中的应用情况进行了总结。     

LaⅡ5d2 1G4→4f5d 1F3超精 细结构光谱测量

利用少有的共线快离子激光光谱学方法研究了LaⅡ的超精细结构,测量了5d² < sup>1G₄态→4f5d ¹F₃态的超精细结构光谱,分 别得出了相应的磁偶极矩和电四极矩的超精细相互作用常数. 关键词： 共线快离子束激光光谱学 超精细结构 共振激发     

3290LaⅡ5d21G4→4f5d1F3超精细结构光谱测量

利用少有的共线快离子激光光谱学方法研究了LaⅡ的超精细结构,测量了5d21G4态→4f5d1F3态的超精细结构光谱,分别得出了相应的磁偶极矩和电四极矩的超精细相互作用常数.     

溴代1-己基-3-甲基咪唑离子液体与丙酮的相互作用

1H and 13C NMR chemical shifts were determined to investigate the interactions of acetone with a room temperature ionic liquid 1-hexyl-3- methylimidazolium bromide C6mimBr at various mole fractions. Changes in chemical shifts of hydrogen nuclei and of carbon nuclei with the acetone concentration indicated the formation of hydrogen bond between anion of the ionic liquid and methyl protons of acetone. The NMR results were in good agreement with the ab initio computational results.