矩阵的扩充与紧支撑正交小波

从矩阵的扩充出发给出了尺度因子a=4时紧支撑正交小波的一种构造方法，同时说明了补空间Wj在a=4时可以进一步分解为三个子空间的正交直和，实现Wj的细致化．     

龙门山彭灌地区大鱼洞-九甸坪-龙溪滑覆体的变形特征及形成

论述了彭灌地区大鱼洞—九甸坪—龙溪滑覆体的构造变形特征，将其划分为南北两个滑覆体，二者以侧向镶嵌方式相连。北段为滑褶式，由两个呈上叠方式的次级滑覆体组成；南段为滑片式。滑覆体是在挤压推覆构造的后期具松弛性质的地球动力学环境下形成的，其来源于映秀—北川断裂东侧地区。滑覆活动于印支晚期至早燕山期。     

Ulmus harutoriensis Oishi et Huzioka角质层特征及古环境意义

根据大量室内实验分析，对产于云南腾冲的植物化石Ulmus harutorensis Oishi et Huzioka的角质层进行了细致研究，揭示了Ulmus harutoriensis叶的表皮构造，其主要特征为：上表皮厚1．1μm，下表皮厚小于1μm，上表皮细胞大于下表皮细胞、毛基少、气孔器很小、只在下表皮发育、无规则型、散生、下陷较浅，在此基础上结合其他资料推测了古气候变化，并与现生Umlus pumila L。同时进行了气孔密度和气孔指数的统计，用生物学的方法推测了古大气CO2浓度，讨论了Berner的碳平衡模型。     

略述丁日昌外交思想的成因

丁日昌的外交思想形成于19世纪60～70年代。这对中国外交的近代化起了很大的推动作用。其内容有:坚守条约的和平外交思想,“自强为本”的实力外交思想,“遣使设领”、“保护华侨”以及主张实行“均势外交”的外交策略等等。从三方面对丁日昌外交思想的成因作一略述。     

Archaeal acylamino acid releasing enzyme/lipase:Crystallization and preliminary crystallographic analysis in a new crystal form

A primitive orthorhombic crystal form of acylamino acid releasing enzyme‘lipase(APE1547)from hyperthermophilic archaeon Aeropyrum pernix strain K1 has been obtained at 291K.The diffraction pattern of the crystal extends to 0.27nm resolution at 100K using Cu Kαradiation.The crystal belongs to the space group P212121 with unit cell dimensions of b=6.399,b=10.439and c=16.953nm.The presence of two molecules per asymmetric unit gives a crystal volume per protein mass(Vm)of 0.0022nm^3 Da^-1 and a solvent content of 43% by volume.A full set of X-ray diffraction data were collected to 0.3nm from the native crystal.     

Quaternary high-resolution opal record and its paleoproductivity implication at ODP Site 1143,southern South China Sea

The correlation of opal content and MAR with oxygen isotopic records of benthonic foraminifera at Site 1143, southern South China Sea indicates that,since about 900 ka,the increasing opal content and MAR during the interglacial periods is inferred to reflect the bigher surface productivity ,for the intensified summer monsoon during the interglacial periods would result in the enhanced upwelling and nutrient supply,Time-sequence spectral analyses of oxygen isotopic record ,opal content and MAR at intervals of 0-900 ka reveal that the changes of surface productivity were dominantly forced by the variations of the earth orbital cycles.     

A new Euprox from the Late Miocene of Yuanmou,Yunnan Province,China,with interpretation of its paleoenvironment

The Yuanmou Basin of Yunnan Province is a hotspot for the research of early homind evolution and its environmental background.During the implementation of the Program“Research of the Origin and Evolution of Early Man and Its Environmental Baqckground” from 1998 to 2001,a huge quantity of hominoid and mammal fossils were collected.The present report systematically describes an Euprox robustus sp.nov.identified during the recent laboratory work on the collected material.Euprox is a group of earliest cervids with true antlers.The new species is the third one of the genus discovered in China.Judged by its morphologic characteristics,the new species feed on juicy and tender leaves of dicotyledon.It implies that the vegetation of its epoch in the Yuanmou Basin is a kind of southern subtropical evergreen forest and the climate is humid and temperate with evident seasonality.The latter is mostly influenced by the monsoon and secondly by the latitude.     

Progress in the study of tectophysicochemistry

Tectophysicochemistry is a research area that deals with the interrelations between physical and chemical changes of crustal materials caused by tectonism. A given tectonic force may be resolved into two parts: homogeneous stress and differential stress. Homogeneous stress refers to isotopic pressure, which is superimposed on the original pressure and affects the equilibrium of various chemical reactions. It is also a factor that influences petrogenesis,metallogenesis and metamorphism. Differential stress is commonly produced when external forces act on a given solid body. It may cause deformation of crustal materials and generate various kinds of structural features. Tectophysicochemistry pays special attention to pressure, temperature and other physicochemical conditions produced or induced by tectonism and studies the influences of additional tectonic parameters on various chemical equilibria, so it gradually develops into an independent area of science.     

东营凹陷沙三段-沙二下亚段T-R层序特征及成因

将东营凹陷古近系沙三段沙二下亚段划分为 3个三级层序 ,即沙三下层序 (SSⅠ )、沙三中层序 (SSⅡ )和沙三上沙二下层序 (SSⅢ )。SSⅠ和SSⅡ层序由湖进体系域和湖退体系域组成T R旋回 ,其特征是代表层序边界的不整合分布局限 ,湖进体系域厚度小 ,主要为细粒沉积物 ,退积式叠加 ;湖退体系域较厚 ,由进积式叠加的砂岩、砾岩和泥岩组成。T R层序的形成主要是由于层序形成早期的构造沉降和气候起主导作用 ,其基底快速沉降 ,湖水供应充分 ,湖平面快速上升。在层序形成晚期 ,沉积物供给和气候起主导作用 ,沉积物供给多 ,快速向前推进 ,湖平面下降。构造沉降和沉积物供给因素对层序控制作用的转换促使其形成层序和体系域的边界。T R层序与三分层序之间的转换是由于层序形成的不同阶段的主控因素不同而引起的     

谁撑起中国未来经济——以2002年的8％为平台，我国经济新一轮加速增长周期即将来临!

作为着眼于长远发展的指导性文件．“十六大”报告中提到的多数发展战略都与调整结构和提高经济发展质量有关。“十六大”报告中提出了一个非常引人瞩目的新观点．即“扩大中等收入者比重”。只有当居民收入呈现“中间大、两头小”的橄榄状结构．绝大多数居民都比较富裕，而且彼此相差不太悬殊的时候．社会才最稳定，经济发展才最有后劲。