Bioinformatics Assisted Gene Discovery and Annotation of Human Genome

IntroductionBioinformatics is coming with Human GenomeProject(HGP) . With the explosions of sequence,structural and other information available ,bioinformatics is playing an increasingly large rolein the study of fundamental biomedical problems.At present and in the near future,it is the mainchallenge for bioinformatists to make gene dicoveryand annotation of human genome sequences whenthe vast amount of data is produced by the highthroughput genome sequencing in a large scale andautomated m…     

C(膜)/Si(SiO2)(纳米微粒)/C(膜) 的光致发光性质研究

用直流辉光溅射法结合真空镀膜法制备出了一种"多层三明治结构"的光致发光材料-C(膜)/Si(SiO2)(纳米微粒)/C(膜)夹层膜,然后分别在400、650和750℃退火1 h.在波长为250 nm的紫外光激发下,刚制备出来未经退火处理的样品具有一个在398nm(3.12 eV)处的紫光宽带PL1峰.在650℃退火后,又出现了一个在360nm(3.44eV)附近的PL2峰.PL1和PL2峰形状和峰位与退火温度和激发波长无关,但强度却与退火温度和激发波长密切相关.结合形态结构分析可知,紫光PL1峰可用量子限制-发光中心(QC-LCs)模型进行解释:即光激发发生在8iO2微粒内部,而光发射源于SiO2与Si界面上的缺陷中心.紫外荧光PL2峰则源自SiC内部的电子-空穴复合发光.     

A Fluorescence Optical Fiber Sensor for Amrinon Using a New Oxazole Compound

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The Elastic Continuum Limit of the Tight Binding Model

The authors consider the simplest quantum mechanics model of solids,the tight binding model,and prove that in the continuum limit,the energy of tight binding model converges to that of the continuum elasticity model obtained using Cauchy-Born rule.The technique in this paper is based mainly on spectral perturbation theory for large matrices.