Detection of the photochemical intermediate processes in phycobiliproteins

The delayed luminescence was applied to detect the intermediate processes of the excitedstate decay in the selectively excited phycobiliproteins. Phosphorescence spectra of the five types of phycobiliproteins, R-PE, CPC, APC, R-PC, PEC were reported in this article. The five phycobiliproteins showed different phosphorescence yields, the sequence of which was the same as that of the singlet oxygen yields. Based on the observation, it can be concluded that each of the chromophores possesses a characteristic phosphorescence emission. The delayed luminescence spectra of APC at different aggregation states (trimer, monomer and denatured APC) are researched. The lower aggregation APC showed less phosphorescence because of relative loose structures and less interaction with the surrounding proteins, while the denatured APC showed delayed fluorescence instead of phosphorescence because of triplet-triplet annihilation.     

Soliton squeezing generated in an all-fiber configuration

We experimentally demonstrate amplitude squeezed soliton utilizing intensity-dependent self-phase modulation in an asymmetric Sagnac interferometer. The system, whose components are connected via ferrule connector/physical connection （FC/PC） fiber connectors, constitutes all-fiber configuration to generate squeezed soliton. Soliton amplitude reduction measured by homodyne detection is near 4.0 dB below the shot-noise level. Optimal squeezing fields in both simple and compact all-fiber configuration are obtained.     

几乎满的ε-等距算子的等距逼近问题

我们从减弱文Vestfrid[1]中定理3中空间一致凸条件和加强ε-等距算子条件着手去研究Banach空间中几乎满的ε-等距算子的等距逼近问题．另外，我们结合完备的β-范（0〈β〈1）空间的性质得到一些相关结论．     

On Connected Components of Skew Group Algebras

Let A be a basic connected finite dimensional associative algebra over an algebraically closed field k and G be a cyclic group. There is a quiver Q_G with relations ρG such that the skew group algebras A[G] is Morita equivalent to the quotient algebra of path algebra kQ_G modulo ideal(ρ_G). Generally, the quiver Q_G is not connected. In this paper we develop a method to determine the number of connect components of Q_G. Meanwhile, we introduce th...     

用方阵乘幂求和法求线性方程组的数值解

介绍了一种新型的,不同于传统的雅克比或高斯塞德尔迭代法的,求解线性方程组的方阵乘幂求和法,并引入了方阵意义上求积分的龙贝格法.该算法成立须以方阵A为实阵,非奇异且主对角元素占优.该法较雅克比或高斯塞德尔迭代的计算量小,特别有助于求解大型线性方程组的问题.     

赋$\beta$-范空间中的最佳逼近问题

本文讨论赋$\beta$-范空间中的最佳逼近问题.以[1]引进的共轭锥为工具,借助[2]中关于$\beta$-次半范的Hahn-Banach延拓定理,第二节给出赋$\beta$-范空间的闭子空间中最佳逼近元的特征,第三节得到赋$\beta$-范空间中任何凸子集或子空间均为半Chebyshev集的充要条件是空间本身严格凸,文章最后证明了严格凸的赋$\beta$-范空间中任何有限维子空间都是Chebyshev集.     

二甲基甲酰胺催化的烯胺还原反应

用路易斯碱二甲基甲酰胺(DMF)催化三氯氢硅(HSiCl3)还原烯胺合成对应的胺,最佳反应条件为:烯胺0.1 mmol, DMF 0.5 eq., HSiCl3 4.0 eq., DCM 1 mL,于0 ℃反应12 h,胺的收率在93%以上.     

Investigation of some supersymmetric decay channels of theZ

We consider the decay of the intermediate vector bosonZ into two fermions and two Goldstone fermions in a model realizing supersymmetry in a nonlinear way. Since the Goldstone fermions are neutrino-like particles, the experimental signature would be two leptons or two jets together with missing energy. We show that for a scale of spontaneous supersymmetry breaking of the order 70 GeV the rate for this process should be detectable in LEP-experiments.     

关于参数设计中调节因子的一个注记

参数设计是日本质量专家田口倡导的一种质量工程方法,调节因子的存在性在参数设计中非常重要.在附加了分布假定的条件下,本文对傅珏生等的定理给出了证明,也指出了从函数结构上研究参数设计的重要性.