A Method Based on FBM Self similar Image Model for Digital Hologram SynthesisSupported by National Natural Science Foundation of China.

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Synthesis,structural characterization and electrochemical recognition of metal ions of two new ferrocenylhydrazone‐based receptors

Two new ferrocenylhydrazone‐based receptors FcL₁ and FcL₂ were prepared and the X‐ray crystal structure of FcL₁ was described. The electrochemical studies reveal that the receptor FcL₁ is responsive to Hg²⁺ and Cr³⁺, whereas, receptor FcL₂ only responsive to Hg²⁺. The maximum electrochemical shift of FcL₁ for Cr³⁺ is about 56 mV. Copyright © 2009 John Wiley & Sons, Ltd.     

MODIFICATION OF TRYPTOPHAN RESIDUES OF IgGRF AND ITS EFFECT ON THE ADSORPTION CAPACITY

1. INTRODUCTION Rheumatoid arthritis (RA) is one of the typical autoimmune diseases characterized by destructive joint inflammation and the excessively production of rheumatoid factors (RFs) [1~3]. It is evident that RFs play an important role in RA, whi…     

求统计量极限分布的一个方法

一九四九年第一届Berkeley会议的论文集上刊印了一篇长达40多页的论文,在这篇论文(见[1])中,许宝騄先生用一个统一的方法,一举解决了一元、多元统计分析中近20个统计量的极限分布。这一方法的想法是非常明确的,它充分利用了数理统计的特点:样本是一组独立同分布的随机变量(或随机向量)。可惜的是后来的许多教科书和专著中,都没有把这一方法给以介绍和展开,其实,现在新提出的某些统计量,它们的极限分布是可以用这一方法求出的,因此,籍助几个重要的例子来说明这一方法还是值得的,本文就是为此目的而写的。     

BAYESIAN ANALYSIS, LIKELIHOOD RATIO AND INFORMATION

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可靠性统计分析中“倒挂”数据的处理方法

在贮存可靠性中,经常会出现“倒挂”数据.本文讨论了“倒挂”数据的处理方法.在合适的数学模型下,用Bayes方法得到了一些有用的结果.     

球分布类中统计量分布唯一性的条件

This paper gives the necessary and sufficient conditions, which are very simple for checking the uniqueness of the distribution of a statistic in those classes of the matrix spherical distributions and improve the results of Kariya [1].     

Syntheses, crystal structures and properties of two 1-D cadmium(II) coordination polymers based on 1,1′-(1,3-propanediyl)bis-1H-benzimidazole

The combination of framework-builders 1,1′-(1,3-propanediyl)bis-1H-benzimidazole (pbbm), Cd(II) ion and framework-regulator ClO₄⁻ or SO₄²⁻ provides two new coordination polymers [Cd(pbbm)₂(ClO₄)₂]_n(1) and {[Cd(pbbm)SO₄(H₂O)₂]·CH₃OH}_n(2). Both of them display 1-D chain framework, but their detailed structures are clearly different from each other. 1 displays a 1-D ribbon of rings framework, 2 features an interesting infinite 1-D looped chain structure composed of two kinds of rings, the smaller 8-membered ring and the larger 20-membered ring. The antimicrobial activities of the two polymers were tested by the agar diffusion method and the results indicated that they exhibited antimicrobial activities against bacterial strands. The measurement of the non-isothermal kinetics of the thermal decomposition of 2 reveals that there are at least three steps that occur in its decomposition process.     

Rational design and syntheses of 0-D, 1-D, and 2-D metal-organic frameworks (MOFs) from ferrocenedicarboxylate tetrametallic macrocyclic building units and subsidiary ligands

We have designed and synthesized three new metal-1,1′-ferrocenedicarboxylate complexes containing tetrametallic macrocyclic building units, namely, [Cd₂(η²-O₂CFcCO₂-η²)₂(phen)₂(H₂O)₂] · 4CH₃OH (1) (Fc = (η⁵-C₅H₄)Fe(C₅H₄-η⁵), phen = 1,10-phenanthroline), {[Cd(η²-O₂CFcCO₂)(pebbm)(H₂O)] · 2H₂O}_n (2) (pebbm = 1,1′-(1,5-pentanediyl)bis-1H-benzimidazole) and {[Cd(η²-O₂CFcCO₂-η²)(prbbm)(H₂O)] · 3H₂O}_n (3) (prbbm = 1,1′-(1,3-propanediyl)bis-1H-benzimidazole). Compound 1 is a 0-D discrete tetrametallic macrocyclic framework. Compound 2 features an infinite 1-D ribbon of rings structure constructed by the subsidiary ligands pebbm connecting tetrametallic macrocyclic building units. For 3, its tetrametallic macrocyclic building units are linked by the subsidiary ligands prbbm to form a 2-D network structure. The structural features of these complexes indicate that the ferrocenedicarboxylate tetrametallic macrocycle can be used as a successful molecular building unit and the shapes and conformational flexibility of subsidiary ligands play a crucial role in the manipulation of the configuration of the resultant MOFs. Their fluorescence spectra in solid state at room temperature suggest that the fluorescence emissions of 1-3 are ruled by 1,1′-ferrocenedicarboxylate ligand.