合成SDDC最佳条件的研究

实验室及工业生产上制备Ｎ，Ｎ－二甲二硫代氨基甲酸钠的最佳工艺条件为：１。原料体积为３０％ＮａＯＨ：９８％ＣＳ２：３３％（ＣＨ３）２ＮＨ＝７：３：６。２．反应温度：９５－１０５℃。３．反应时间；约２ｈ。按照本工艺生产的ＳＤＤＣ的产率为９６％。     

[Na（DB18C6）（H2O）2]2W6O19的合成与晶体结构

有关文献报道了［Ｎａ（ＤＢ１８Ｃ６）ＣＨ３ＯＨ２］２Ｗ６Ｏ１９的合成与晶体结构．本文应用相同的反应物，选用不同的实验条件合成出了另一种新型冠醚多酸超分子配合物，并进行了ｘ四圆衍射测定．该晶体Ｃ４９Ｈ８２Ｗ６Ｎ２Ｎａ２Ｏ４０为四方型，空间群为Ｐｒ／ｍｂｍ，α＝１．７０９５（３）ｎｍ，Ｃ＝２．８２４３（５）ｎｍ，Ｖ＝８．２５４（２）ｎｍ３，Ｚ＝５４，Ｍｒ＝２４８８．３３，Ｄｘ＝２．０３５／ｃｍ３，μ＝９．５１ｃｍ－１，Ｆ（０００）＝４７０４．最后一致性因子为Ｒ＝０．０５４６和Ｒｗ＝０．０６３２．该配合物由［Ｎａ（ＤＢ１８Ｃ６）（Ｈ２Ｏ）２］＋与Ｗ６Ｏ１９通过静电作用而组成     

化学需氧量COD_（Cr）测定条件改进的研究

本文提出以Ａｇ２ＳＯ４—Ａｌ２（ＳＯ４）３—ＭｇＳＯ４作催化剂，在Ｈ２ＳＯ４－Ｈ３ＰＯ４混酸溶液中快速测定废水ＣＯＤ的新方法．实验确定的最佳条件是：Ａｇ２ＳＯ４：Ａｌ２（ＳＯ４）３：ＭｇＳＯ４＝１∶１∶１（质量比），Ｈ２Ｏ４：Ｈ３ＰＯ４＝５∶１（体积比），回流时间０．５小时，通过对废水ＣＯＤ的测定，取得与标准法相近的结果．     

钴原子簇化学研究 Ⅷ.含桥基2-硫代乙内酰脲分子片配位及杂环卡宾的三核钴羰基硫簇合物的合成和结构

用乙酸、硫氰化铵与氨基酸反应，得到４个２－硫代乙内酰脲配体Ｓ＝ＣＮＨＣ（Ｏ）ＣＨ（Ｒ）Ｎ↓Ｈ，它们分别与Ｃｏ２（ＣＯ）８反应，合成出两类４个三核钴羰基硫簇合衍生物：Ｃｏ３（ＣＯ）７（μ３－Ｓ）〔μ－η２－ＳＣ＝ＮＣ（Ｏ）ＣＨ（Ｒ）Ｎ↓Ｈ（Ｉａ，Ｉｂ）和Ｃｏ３（ＣＯ）６（μ３－Ｓ）（μ－η２－ＳＣ＝ＮＣ（Ｏ）ＣＨ（Ｒ）Ｎ↓Ｈ）（：ＣＮＨＣ（Ｏ）ＣＨ（Ｒ）Ｎ↓Ｈ）（Ⅱｃ，Ⅱｄ）．对４个族合物进行了元素分析、ＩＲ谱、１ＨＮＭＲ和ＭＳ表征，并推测出它们的分子结构．     

N－间甲氧基苯基亚氨基二乙酸合铜（Ⅱ）二水化合物的晶体与分子结构

Ｎ－间甲氧基苯基亚胺基二乙酸合铜（Ⅱ）二水化合物［Ｃｕ（ＣＨ２ＣＯＯ）２ＮＣ６Ｈ４ＯＣＨ３］·２Ｈ２Ｏ属正交晶系，空间群Ｐｂｃａ，ａ＝１．０７２５（３），ｂ＝１．０８５１（４），ｃ＝２．１８２７（５）ｎｍ，ｖ＝２．５４０（２）ｎｍ３，Ｚ＝８，Ｍｒ＝３３６．８，Ｄｘ＝１．７６ｇｃｍ－３，μ＝１８．１ｍｍ－１，Ｆ（０００）＝１３７６。结构由直接法解出，偏离因子Ｒ＝０．０７８。Ｃｕ（Ⅱ）离子与亚氨基二乙酸分子中一个氮原子、两个水分子氧原子和两个羧基氧原子配位形成一变形四方单锥构型。Ｃｕ（Ⅱ）离子到四方单锥顶点Ｏ（７）原子（水２）的键长为２．２７９×１０－１（４）ｎｍ，长于配位基平面内Ｃｕ－Ｏ和Ｃｕ－Ｎ的平均键长［１．９３９×１０－１（４）和２．０５１×１０－１（４）ｎｍ］。     

水解磷酸氢钙制备羟基磷灰石粉末的研究--活性生物陶瓷研究之一

本文研究了水解磷酸氢钙（Ｂｒｕｓｈｉｔｅ, ＣａＨＰＯ４·２Ｈ２Ｏ, 简称ＤＣＰＤ） 并用ＣａＯ２·２Ｈ２Ｏ（简称ＣＣＤ） 熟化以制备化学计量的ＨＡＰ粉末的方法． 用产物的Ｃａ／Ｐ（摩尔比） 作为评价指标, 找出了最适宜的ＤＣＰＤ 水解条件： ｐＨ ７．５～８．０, 温度８０ ℃, 水解３ ｈ, 料／水比１ｖ５０, 以及熟化的最佳方案： 熟化三次 （每次１ ｈ）, ｐＨ １１, 温度４０ ℃, 每次ＣＣＤ掺量２０％ , 料／水比１ｖ２５． 合成了化学计量的ＨＡＰ粉末 （Ｃａ／Ｐ＝ １．６７）, 经ｘ 射线衍射分析鉴定确为ＨＡＰ．     

[Na(DB18C6)X_n]_2M_6O_(19)Y的合成与表征

本文合成了通式为［Ｎａ（ＤＢ１８Ｃ６）Ｘｎ］２Ｍ６Ｏ１９Ｙ（Ｍ＝Ｗ和Ｍｏ,Ｘ＝Ｈ２Ｏ和ＣＨ３ＯＨ,ｎ＝１和２,Ｙ＝（ＤＢ１８Ｃ６）·（ＣＨ３ＯＨ）和（ＤＭＦ）２·（ＣＨ３ＯＨ）３）的四种冠醚多酸超分子配合物,进行了红外、核磁和元素分析等表征,用四圆衍射测定了晶体结构,并对配合物的热分解过程进行了研究．结果表明,实验条件的变化,可导致相同的反应物形成键型不同、结构不同的产物．     

［Ag_2（α－Ph_2PPy）_2］_2（NO_3）_4的合成和晶体结构

ＡｇＮＯ＿３和ａ－ｐｈ＿２ｐｐｙ，（ａ－（Ｃ＿６Ｈ＿５）＿２Ｐ（ＮＣ＿５Ｈ＿５））在加有少量Ｈ＿２Ｏ＿２和ＮａＯＨ的Ｃ＿２Ｈ＿５ＯＨ水溶液中反应生成标题化合物的灰黑色晶体。属四方晶系，空间群Ｐ４＿１，ａ＝１．３００ｎｍ，Ｃ＝４．０７６ｎｍ，ｖ＝６．８８４ｎｍ￣３，Ｚ＝８，Ｄ＿ｃ＝１．６７ｇｃｍ￣（－３），Ｒ＝０．０５９，ｒ＿ω＝０．０７２．每一不对称单元中存在二套独立而结构基本相同的［Ａｇ＿２（ａ－ｐｈ＿２ＰＰｙ）＿２］￣２＋，它的二个Ａｇ原子和二个ａ－ｐｈ＿２ＰＰｙ中－Ｎ－Ｃ－Ｐ－桥的Ｎ，Ｐ原子联接成为一个稳定非共面八员环，而环内Ａｇ，Ａｇ间距分别是０．３１４，０．３ｌ０（ｎｍ），均未成键。不对称单元中的二个八员环通过的Ｏ原子与环上Ａｇ原子的弱成键而具有结构联系。环内还出现了罕见的三配位Ａｇ原子。     

L－酪氨酸高氯酸盐的晶体结构

在水溶液中制备了标题化合物Ｌ－酪氨酸ＨＣｌＯ４，并用Ｘ射线单晶衍射仪测定了其晶体结构。晶体属单斜晶系，Ｐ２１空间群。晶胞参数：ａ＝０．５３３５（１）ｎｍ，ｂ＝０．９８１７（２）ｎｍ，ｃ＝１．２０００（３）ｎｍ，β＝９４．７９（２）°，Ｖ＝０．６２６３（３）ｎｍ３，Ｚ＝２，Ｄｃ＝１．４９４ｇ／ｃｍ３     

(C_9H_8N)_2[MoO(S_2C_2(CN)_2)_3]·2H_2O的晶体和分子结构

（Ｃ９Ｈ８Ｎ）２［Ｍ０Ｏ（Ｓ２Ｃ２（ＣＮ）２）３］．２Ｈ２Ｏ晶体属于三斜晶系，空间群Ｐ， 晶胞参数：ａ＝ １１．３０５（６），ｂ＝１４．３８４（３），ｃ＝１４．２７８（３）Ａ，ａ＝５６．８６（２），β＝１１４．１１（２），ｙ＝１１１．１２（３） ｐ０ｂｓ＝１．６５４克／厘米３，Ｚ＝２（ρｃａｌｃ＝１．５７６克／厘米３）．晶体结构用Ｐａｔｔｅｒｓｏｎ函数法和Ｆｏｕｒｉｅｓ 合成法解出，经全矩阵最小二乘方精修，偏离因子Ｒ＝０．０４７．结构分析结果说明Ｍｏ原子与三个配 位基的六个硫原子和一个端基氧形成扭歪五角双锥结构．结晶水与［Ｍｏ０（Ｓ２Ｃ２（ＣＮ）２）３］２－络阴 离子和喹啉阳离子之间存在Ｏ－Ｈ…Ｎ和Ｎ－Ｈ…Ｏ氢键。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

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.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

A computer generator for randomly layered structures

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

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

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。     

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

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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     

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