趣谈沙陀三王朝

沙陀是唐太宗贞观年间见于史书记载的一个西域小民族,从北庭内迁,在唐末逐渐强大。10世纪初,沙陀在中原先后建立了后唐、后晋、后汉三王朝,对中国历史的发展产生了重要影响。     

太原建设特色文化名城 文化立市是关键

2500年源远流长的古城文化.是太原的古老血脉,也是太原的立市之本. 我国共有99座历史文化名城,其中,西安、洛阳、开封、南京、杭州、北京被公认为六大古都,而太原被很多专家认为是七朝古都.它是赵国、前秦、北汉的都城,也是东魏、北齐、唐朝、后唐、后晋、后汉的陪都,古老的太原是李唐的"龙兴之地",是李渊发兵、建立唐朝的根据地.     

唐代沙陀人在西域的活动区域

沙陀是历史上唯一一个源自新疆并入主中原建立王朝的少数民族，但是沙陀早期是一个处于西突厥统治之下的弱小民族，作为夷狄其本身并无文字传记，这为我们系统了解沙陀早期历史造成了很大的麻烦。通过文献考证与实地考察相结合的方式较全面地复原沙陀早期的历史。     

试论李克用河东幕府的建立及其人员构成

晚唐时期,出身于沙陀族的李克用凭借战功得以成为河东节度使.在其征战的过程中,河东幕府逐渐形成,并成为李克用的河东集团向外扩张的有力工具.河东幕府中的人员构成,主要有三个来源:一是沙陀族中的同姓宗室;二是李克用收养的“义儿”;三是代北地区的“北边劲兵”.这些河东幕府的早期成员,后来成为推动后唐建立的骨干力量.     

论沙陀的汉化

沙陀是历史上唯一一个源自新疆、融于汉族,并在中原建立政权的少数民族。本文拟对沙陀汉化前的社会经济状况、沙陀汉化的表现进行的阐述,并在此基础上对沙陀的汉化略作评价。     

五代三大状元

五代历史短暂、战乱频仍，此期状元大多不得伸展其志，且相关资料散佚殆尽，然细读仅存的少数状元传记，其中仍不乏佼佼者，后汉状元王溥、王朴，南唐状元乐史，其立身行事便多有值得称道，乃至可供令人借、效法之处，堪称“五代三大状元”。     

十九世纪初期沙皇俄国骑兵服饰特征剖析

19世纪初期沙皇俄国骑兵由四个部分组成。即胸甲骑兵、龙骑兵、轻骑兵和枪骑兵。他们的服饰有其各自的特点，同时各种骑兵内部也通过各种不同的颜色来区分隶属单位。     

沙陀崛起河东原因之分析

沙陀原为西北边陲一弱小部族,内迁之后历经四代之奋斗,终崛起河东,定鼎中原,这在中国历史上实属罕见。笔者认为,沙陀崛起河东的主要原因有三:依托河东自然、人文之优势;积极拓展统治阶层;广与地方大姓通婚。     

论宋太宗任用禁军将领思想上的变化

宋太宗为了更好地防范禁军将领群体,达到维护北宋政权稳定的目的,在任用禁军将领的思想上与宋太祖相比出现了重大的变化,由重用外戚、笼络禁军将领发展成为重用潜邸亲随、控制禁军将领。这从一个侧面反映出北宋初年的政治逐步朝着加强专制的方向发展。     

大厚度、封闭结构马氏体不锈钢修复补焊工艺

沙陀水电站转轮上冠的连轴孔加工错位,采用气体保护焊的方法对错位孔进行补焊,获得了良好的效果。本文对其补焊工艺措施进行了论述。     

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…     

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.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.