蝉花的化学成分分析

本文对麦角菌科真菌大蝉草ＣｏｒｄｙｃｅｐｓｃｉｃａｄｅＳｈｉｎｇ测定了蛋白质、氨基酸、多糖、微量元素、脂肪等的含量，结果显示蝉花含蛋白质总量为３９．３５％，含有１６种氨基酸，多糖含量为４．４４％，脂肪含量为６．９７％，并含有Ｃｕ、Ｍｎ、Ｚｎ、Ｃｄ、Ｐｂ、Ｃａ、Ｆｅ、Ｍｇ、Ｃｒ、Ｃｏ等元素．     

铸造—热压变形Pr17Fe76.5B5Cu1.5永磁合金的组织结构与性能

研究了Ｐｒ１７Ｆｅ７６．５Ｂ５Ｃｕ１．５永磁合金经铸造和热压变形量分别为０,３０％,５０％和７０％后,样品的成分、组织、性能随变形量的变化。随热压变形量的增加,样品的Ｐｒ和Ｃｕ的含量降低,而Ｆｅ和Ｂ的相对含量提高;各向异性和各种磁参量,如μ０Ｍｓ,Ｂｒ,ｉＨｃ,ｂＨｃ和（ＢＨ）ｍ均提高。热变形量大于８０％,并经最佳热处理后样品的性能达到：Ｂｒ＝１．２Ｔ,ｉＨｃ＝１．２２ＭＡ／ｍ,（ＢＨ）ｍ＝２６０ｋＪ／ｍ３,与烧结Ｐｒ－Ｆｅ－Ｂ永磁体的性能相当。     

蝮蛇短尾亚种体内元素定性定量分析

经电感耦合等离子体发射光谱法（ＩＣＰ－ＡＥＳ）测定，蝮蛇短尾亚种体内含有大量的宏量元素Ｃａ、Ｍｇ、Ｐ及微量元素Ｃｕ、Ｚｎ、Ｆｅ、Ｍｎ、Ｓｅ、Ｓｒ、Ａｌ、Ｃｒ、Ｂａ、Ｐｂ、Ｇｅ和Ｍｏ．但这些元素在各器官间的含量存在显著差异：Ｚｎ、Ｆｅ、Ａｌ、Ｃｒ在蛇体内含量较高；Ｃｕ、Ｍｎ含量中等；Ｓｅ、Ｓｒ、Ｂａ、Ｐｂ含量较少，而Ｇｅ、Ｍｏ含量甚微．结果提示蝮蛇短尾亚种体内各器官的微量元素分布特点是与其生理生化功能相适应的．     

Fe-Cr-Mo-C 系粉末压坯烧结致密化机理

研究了烧结温度对Ｆｅ－Ｃｒ－Ｍｏ－Ｃ系试样密度及性能的影响,探讨了实现烧结致密化的机理．结果表明,采用真空烧结工艺,在１１６０～１２６０℃范围内,Ｆｅ－（１３～２０）Ｃｒ－１．５Ｍｏ－（１．８～３．６）Ｃ粉末压块可实现液相烧结致密化,制得密度大于７．３ｇ／ｃｍ３,硬度ＨＲＡ７０以上的高Ｃｒ烧结铁基材料．适宜的液相烧结温度随Ｃ含量增加而降低．     

Expresion der Antigene CD44-v6 und E48 auf Tumorzellen der Plattenepithelkarzinome im Kopf-Hals-Bereich

ＦａｂｒｉｃｉｕｓＥ．Ｍ．１）ＧｕｓｃｈｍａｎｎＭ．２）ＬａｎｇｆｏｒｄＡ．１）ＨｅｌＢ．１）ＷｉｌｓｎｅｒＧ．Ｐ．３）ＬａｉＲ．４）ＶｏｇｅｌＭ．２）ＢｉｅｒＪ．１）（１）ＫｌｉｎｉｋｆüｒＭｕｎｄ－,Ｋｉｅｆｅｒ－ｕｎｄＧｅｓｉｃｈｔｓｃｈｉｒｕ...     

引种与野生绞股蓝药用成分比较研究

对海南岛引种与野生的６种绞股蓝总皂甙、氨基酸、微量元素及营养物质化学成分的含量变化．迸行了比较分析．结果表明：总皂甙、皂甙元高效薄层层析色谱（ＨＰＴＬＣ）主要斑点（９～１１）与人参皂甙基本一致，唯有引种的任梗绞股蓝斑点Ｒｆ值递变较大（０．２８～０．８９）；总氨基酸含量，不管野生或栽培种，均以绞股蓝＞喙果绞股蓝＞单叶绞股蓝＞疏花绞股蓝；微量元素含量是引种、野生的Ｓｉ、Ｆｅ、Ｍｎ普遍高于人参总皂甙；各种矿质元素含量变化差异依Ｓｉ＞Ｆｅ＞Ｚｎ＞Ｍｎ＞Ｓｒ＞Ｃｕ＞Ｓｂ＞Ｃｒ＞Ｐｂ＞Ｍｏ＞Ｓｅ＞Ｎｉ＞Ｖ＞Ｃｏ．     

黄蘑(Tricholomagambosum(Fr.)Gill)菌丝体营养生理特性的研究

黄蘑（Ｔｒｉｃｈｏｌｏｍ ａ ｇａｍ ｂｏｓｕｍ （Ｆｒ．） Ｇｉｌｌ）为内蒙古锡林郭勒草原的珍贵野生食用菌．通过对其菌丝体营养生理特性的初步研究,结果证实：１） 该菌在供试的Ｃ源中以麦芽汁利用最好;２） Ｎ 源的利用以（ＮＨ４ ）２ ＨＰＯ４ 效果最佳,而且该菌种也能够利用有机态的Ｎ（即蛋白胨）;３） 就供试的培养基来看,ＭＭＮ 为最适培养基;４） 黄蘑菌丝体对ｐＨ 值的适应范围比较广,但更喜欢偏碱性的环境     

高铬白口铸铁的组织与相结构研究

本文主要研究耐磨高铬白口铸铁的组织形貌与相结构问题。通过实验确定：比较 理想的合金主要化学组成为 Ｆｅ－１１．３％Ｃｒ－２．８８％Ｃ；经能谱、Ｘ射线及电子衍射 分析确认：该合金中的主要抗磨相为具有六方结构的（Ｃｒ．Ｆｅ，Ｍｏ）７Ｃ３型复合碳 化物、Ｈｖ１３００—１８００： 金相观测表明：该合金的显微组织形貌为：在强韧的回火马 氏体（或回火屈氏体）的连续基体上孤立匀称地分布着“菊花团伏”的高硬度共晶 碳化物（Ｃｒ，Ｆｅ，Ｍｏ）７Ｃ３。     

福建几种主要品种茶树鲜叶矿质元素含量

研究了福建几种主要品种茶树鲜叶中１８种矿质元素含量的数量级范围,大小顺序,（Ｋ〉Ｐ,Ｃａ,Ｍｇ〉ｌ,Ｎａ〉Ｍｎ,Ｆｅ〉Ｚｎ,Ｃｕ〉Ｓｒ,Ｂａ〉Ｎｉ,Ｔｉ〉Ｃｏ,Ｃｒ,Ｌａ〉Ｖ）,及其鲜叶中某些元素（如Ｃａ与Ｍｇ与Ｆｅ,Ｃｕ与Ｚｎ,Ｓｒ与Ｂａ）含量之间的相似性,除Ｋ,Ｎａ,Ｃｒ,Ｔｉ外,鲜叶中Ｃａ,Ｍｇ,Ｐ,Ａｌ,ｃＵ,Ｚｎ,Ｆｅ,Ｍｎ,Ｂａ,ＳＲ,Ｎｉ,Ｃｏ,Ｖ,Ｌａ的含量在茶树品种间差异显著,这     

脑血栓形成患者用精制蝮蛇抗栓酶(Svate-3)治疗前后头发微量元素分析

对１２６例脑血栓形成患者用精制蝮蛇抗栓酶（Ｓｖａｔｅ－３）治疗，检测用药前后头发中Ｃｒ、Ｍｎ、Ｓｅ、Ｍｏ、Ｃｏ元素含量。发现脑血检患者用Ｓｖａｔｅ－３治疗后发Ｃｒ、Ｍｎ、Ｓｅ含量明显高于用药前，它们之间都有显著性差异，Ｐ＜０．０１；Ｍｏ、Ｃｏ元素的含量在用药前后无显著性差异Ｐ＞０．０５，提示发Ｃｒ、Ｍｎ、Ｓｅ与脑血栓有关。     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.