热电动势法快速测定微碳铬铁中硅含量

用热电动势法快速测定了微碳铬铁中硅含量．当冷热端温度差为２８０℃和黄铜为参比极时，热电动势Ｅ＿ｔ与待测极微碳铬铁中硅含量［％Ｓｉ］间有如下关系：Ｅ＿ｔ＝１４．２３８—０．５８２［％Ｓｉ］，ｍＶ．其测量精度与化学法和光谱法相比．分别为±０．０４％Ｓｉ和±０．０２８％Ｓｉ．每次测试时间为３０ｓ．     

丙烯酸乙酯──醋酸乙烯酯与玉米淀粉的乳液共接枝聚合反应

本文以过硫酸钾与硫代硫酸钠组成ＫＰＳ—Ｎａ２Ｓ２Ｏ３氧化还原ｚ引发体系，首次研究了丙烯酸乙酯（ＥＡ）一醋酸乙烯酯（ＶＡＣ）与玉米淀粉的乳液共接枝反应规律，ＩＲ、ＳＥＭ表征了产物的结构．当［ＫＰＳ］＝６×１０－３Ｍ，［ＶＡＣ］＝１．５×１０－１Ｍ，［ＥＡ］＝２×１０－２Ｍ，Ｓ：Ｌ＝４：１００，ＣＥ＝０．６ｇ／１００ｍｌ，６０℃，反应６ｈ时，可以得到最佳的Ｇ％及Ｅ％值，文献中未见有与本文相同的报道．     

正常麻醉犬动脉血和脑脊液酸碱电解质关系的初步分析

３０只健康麻醉犬动脉血和脑脊液（ＣＳＦ）酸碱变量及主要电解质检测结果分析发现：ＣＳＦｐＨ、［Ｋ~＋］＜ｐＨａ和［Ｋ~＋］_ａ，相互之间相关显著，其回归方程分别为ＣＳＦｐＨ＝０．４７７×ｐＨａ＋３．７８，ＣＳＦ［Ｋ~＋］＝０．４１８×［Ｋ~＋］_ａ＋１．１２。ＣＳＦＰＣＯ２、［Ｃｌ~－］、［乳酸］［Ｌａｃｔ］＞ＰａＣＯ２、［Ｃｌ－］_ａ和［Ｌａｃｔ］_ａ，相互之间相关显著。其回归方程分别为ＣＳＦＰＣＯ２＝０．５６４×ＰａＣＯ２＋３．５３２５，ＣＳＦ［Ｃｌ~－］＝０．５×［Ｃｌ~－］_ａ＋７６．７，ＣＳＦ［Ｌａｃｔ］＋０．９５×［Ｌａｃｔ］_ａ＋１．０。ＣＳＦ［ＨＣＯ_３~－］与ＣＳＦＰＣＯ２相关显著，回归方程为ＣＳＦ［ＨＣＯ_３~－］＝１．８９８×ＣＳＦＰＣＯ２＋１０．６。     

具有生物活性的有机磷化合物的研究 Ⅺ．烷氧基－2－甲硫苯氧基磷酰胺酯的合成与杀虫活性

在甲苯溶剂中用“一锅反应法”,以４７．６％～９２．０％的收率合成了１４个通式为［ＲＯ（２－ＣＨ３ＳＣ６Ｈ４Ｏ）Ｐ（Ｏ）ＮＨＲ１］新的磷酰胺酯化合物,用元素分析、ＩＲ和ＮＭＲ进行了表征,生物试验发现４个目标化合物［４ａ：Ｒ＝Ｍｅ,Ｒ１＝Ｈ;４ｂ：Ｒ＝Ｍｅ,Ｒ１＝ｎＰｒ,４ｇ：Ｒ＝Ｍｅ,Ｒ１＝ｉＢｕ;４ｈ：Ｒ＝Ｅｔ,Ｒ１＝Ｈ］在０．０２５％的浓度下杀蚜虫的死亡率为９０．７％～９８．９％．     

高炉喷吹铁矿粉工业性试验结果分析

对鞍钢１０５０ｍ＾３高炉喷吹铁矿粉的工业性试验结果进行了分析。由于矿粉中氧化铁的氧化作用在喷矿近１０ｋｇ／ｔ条件下，生铁Ｓｉ含量由０．６３１％降至０．５８４％；硅氧化放热与铁矿粉分解及还原吸热大体相抵，所以喷吹后焦比未见升高。     

Banach空间中常微分方程Cauchy问题的近似解与解的关系

讨论Ｂａｎａｃｈ空间中常微分方程Ｃａｕｃｈｙ问题的近似解与解的关系，得到一个Ｃａｕｃｈｙ问题的近似解与解的关系的定理：定理设ｆ＿ｎ∈Ｃ［Ｒ＿０，Ｅ］（ｎ≥１），ｆ∈Ｃ［Ｒ＿０，Ｅ］，序列｛ｆ＿ｎ｝在Ｒ＿０上一致收敛于ｆ；又设０＜α≤ａ，ｘ＿ｎ∈Ｃ￣１［［ｔ＿０，ｔ＿０＋α］，Ｂ（ｘ＿０，ｂ）］，且满足Ｃａｕｃｈｙ问题ｘ＇＿ｎ（ｔ）＝ｆ＿ｎ（ｔ，ｘ＿ｎ（ｔ））ｘ＿ｎ（ｔ＿０）＝ｚ＿ｎ其中ｔ∈［ｔ＿０，ｔ＿０，ｔ＿０＋α］，ｎ＝１，２，…，ｚ＿ｎ∈Ｅ，ｚ＿ｎ→ｘ＿０（ｎ→∞），如果ｘ＿ｎ（ｔ）在［ｔ＿０，ｔ＿０＋α］上一致收敛于ｘ（ｔ），则ｘ∈Ｃ￣１［［ｔ＿０，ｔ＿０＋α］，Ｂ（ｘ＿０，ｂ）］，且对ｔ∈［ｔ＿０，ｔ＿０＋α］，有ｘ＇（ｔ）＝ｆ（ｔ，ｘ＿ｎ（ｔ））ｘ（ｔ＿０）＝ｘ＿０     

关于E^n中p维与q维超平面间的距离

设Ｅｎ中ｐ维与ｑ维超平面分别为πｐ：α１∧α２∧…∧αｐ∧（ｘ－ｘ０）＝０，πｑ：β１∧β２∧…∧βｑ∧（ｙ－ｙ０）＝０，｛γ１，γ２，…，γｔ｝是向量组｛α１，α２，…，αｐ，β１，β２，…，βｑ｝的一个极大线性无关组，则πｐ与πｑ间的距离平方为：ｄ２（πｐ，πｑ）＝｜δ０｜２－γ１δ０，…，γｔδ０［］γｉγｊ［］－１γ１δ０，…，γｔδ０［］Ｔ其中δ０＝ｘ０－ｙ０．     

丙烯酸异冰片基氧烷基酯聚合动力学及聚合物性能研究

本文研究了具有桥环侧基的丙烯酸异冰片基氧烷基酯的自由基聚合反应动力学，测试了聚合物的光、热、硬度等性能。得到了氧烷基为氧乙基、氧丙基、氧丁基的聚合反应动力学方程分别为：Ｒｐ＝ｋ［ＢＰＬ］＾０．５［ＩＢＯＥＡ］＾１．０，ｐ＝Ｋ［ＢＯＰ］＾０．５［ＩＢＯＰＡ］＾１．０，Ｒｐ＝ｋ［ＢＰＯ］＾０．５［ＩＢＯＢＡ］＾１．０；聚合反应表观活化能分别为：８７．９５ＫＪ／ｍｏｌ，８８．６２ｋＪ／ｍｏｌ，１０１．１     

Approximation of fixed points of strict Hemi contraction mapping

Ｌｅｍｍａ１［１］ＩｆＥｉｓａｕｎｉｆｏｒｍｌｙｓｍｏｏｔｈＢａｎａｃｈｓｐａｃｅ,ｔｈｅｒｅｅｘｉｓｔｓａｃｏｎｔｉｎｕｏｕｓｎｏｎｄｅｃｒｅａｓｉｎｇｆｕｎｃｔｉｏｎβ（ｔ）：［０,∞）→［０,∞）ｓｕｃｈｔｈａｔｌｉｍｔ→０＋β（ｔ）＝０,β...     

中立型线性微分—差分方程的稳定性

应用Ｌｉａｐｕｎｏｖ泛函法研究了［ｘ（ｔ）－Σｋｉ＝１Ａｉｘ（ｔ－τｉ）］′＝－Ｂ０ｘ（ｔ）－Σｋｉ＝１Ｂｉｘ（ｔ－τｉ）中立型微分－差分方程的稳定性，其中ｘ∈Ｒｎ，Ｂ０，Ａｉ，Ｂｉ（ｉ＝１，２，…，ｋ）皆为ｎ×ｎ阶实常阵，τｉ∈（０，＋∞）（ｉ＝１，２，…，ｋ）．得到了该方程平衡态稳定性的几个充分判据     

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.     

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.     

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.