基于代数约束的图像生成

介绍一种新的由两幅不同角度的参考图像生成另一幅新的视角图像的图像生成方法 .该方法在极线几何的基础上 ,通过研究物体在 3个不同透视投影平面上对应点之间的相互关系 ,得到描述不同图像上对应点关系的一个三线性张量 .由此张量和参考图像便能得到新图像和参考图像之间的关系 ,进而生成新的视角图像 .和其他基于图像的二次投影方法相比 ,这里仅需要两幅参考图像 ,且实现方法简单快速 .实验给出了令人较满意的效果     

hB1F and HNF1 work syner-gistically in the regulation of the function of HBV ENⅡ

Human B1 binding factor (hB1F) is a novel trans- cription factor cloned in our laboratory, which has the capacity of binding the B1 region of HBV enhancer Ⅱ (ENⅡ) and stimulating its activity. In this report, the functional relationship between hB1F and other liver-enriched activators of ENⅡ was investigated. The results of CAT assay indicated that there was only additive effect between hB1F and HNF4 as well as HNF3?. On the contrary, the presence of both hB1F and HNF1 would result in significant functional synergism. Further GST pull down assay indicated that hB1F could interact with HNF1 directly in vitro. This study provides the evidence that hB1F and HNF1 work synergistically in the regulation of the activity of HBV ENⅡ.     

财务报告在公司治理中的角色分析

通过对财务报告在公司外部、内部治理机制中的作用分析，探讨了财务报告在公司治理中的角色地位，从而揭示财务报告与公司治理之间的内在联系。     

20年来"佛经文学对中国小说影响"研究综述

佛教东传对中国古代小说，尤其是宋前小说的影响，是全方位、多角度的，它涉及小说故事题材、情节结构、思想内容等方面，近二十年对佛教与小说关系的研究日益增多，研究对象也逐渐由整体研究发展到个案研究，有关宣佛小说的价值与定位也相应起了变化。     

SF6的单取代和二取代物中^2JFF的半经验计算

运用最大键级杂化轨道这一计算方法，计算并拟合得到单取代和二取代的ＳＦ６衍生物中＾２ＪＦＦ的具体计算公式，由新公式得到的计算值与实验值基本吻合。     

《接骨师的女儿》中骨的意象与家族历史的发掘

《接骨师的女儿》是著名美籍华裔女作家谭恩美的第四部小说。在这部被视为自传体小说的作品中,谭恩美再一次展现出其细腻的写作特长,继续描写了华裔移民母女关系,展现了当代华裔作家的寻根思想。在这部小说中,作者显现了家园情结,并且将骨的意象及其家族历史得以发掘。     

《黑暗之心》的解构主义解读

《黑暗之心》讲述主人公马洛对库尔兹的寻觅之旅,小说以终极真理探寻失败的方式解构了西方"逻各斯中心主义"。通过揭示小说中语言的无能及二元对立项间关系的不稳定性,本文旨在说明《黑暗之心》不仅阐释了终极真理的不可得,并进一步解构了自身,表明文本意义具有多样性。     

A novel family of human major histocompatibility complex-related genes not mapping to chromosome 6

Thymocyte antigens CD1 [Thy,gp45,12] are thought to be the human counterparts of mouse thymus leukaemia (TL) antigens. Serological and biochemical analyses indicate that at least three subsets exist, the first of which (HTA 1/T6) was initially identified by the monoclonal antibody NA1/34. Like TL, CD1 are expressed on cortical thymocytes as well as on some lymphoid neoplasias, and resemble in structure major histocompatibility complex (MHC) class I antigens. However HTA 1/T6 is loosely associated with beta 2-microglobulin and is also found linked by a disulphide bridge to CD8(T8). A molecular genetic approach is needed to investigate the CD1 system, to clarify its relationship to TL antigens and to understand its regulation. We report the isolation of complementary DNA (cDNA) clones encoding a CD1 antigen. These clones reveal a novel family of genes which are MHC-related but are neither equivalent to mouse TL antigens nor linked to the MHC.     

Negative lattice expansion from the superconductivity--antiferromagnetism crossover in ruthenium copper oxides

The mechanism of high-transition-temperature (high-T(c)) superconductivity in doped copper oxides is an enduring problem. Antiferromagnetism is established as the competing order, but the relationship between the two states in the intervening 'pseudogap' regime has become a central puzzle. The role of the crystal lattice, which is important in conventional superconductors, also remains unclear. Here we report an anomalous increase of the distance between copper oxide planes on cooling, which results in negative thermal volume expansion, for layered ruthenium copper oxides that have been doped to the boundary of antiferromagnetism and superconductivity. We propose that a crossover between these states is driven by spin ordering in the ruthenium oxide layers, revealing a novel mechanism for negative lattice expansion in solids. The differences in volume and lattice strain between the distinct superconducting and antiferromagnetic states can account for the phase segregation phenomena found extensively in low-doped copper oxides, and show that Cooper pair formation is coupled to the lattice. Unusually large variations of resistivity with magnetic field are found in these ruthenium copper oxides at low temperatures through coupling between the ordered Ru and Cu spins.     

漫谈《无法斯文》的当代性

文学作品的当代性指作品的现实性和时代感。小说《无法斯文》深刻揭示了当代中国的社会矛盾、观念变化和精神状态，其中强烈的现实意义和艺术力量，使这篇小说具有了一定的当代性。