氯化稀土与丙氨酸固体配合物的研究

在水相介质中制得６个氯化稀土与丙氨酸的配合物,通式为ＬｎＣｌ３·Ｌ·６Ｈ２Ｏ和ＬｎＣｌ３·３Ｌ·ｎＨ２Ｏ（Ｌｎ为Ｎｄ,Ｄｙ,Ｙｂ;Ｌ为丙氨酸）。通过化学分析、元素分析、红外光谱、热重分析及Ｘ光粉末衍射等方法对这些配合物进行了物理化学性质及结构表征。     

高氯酸铽,六氟磷酸铽与二苯基亚砜,苯丁基亚砜配合…

合成了Ｔｂ（ＤＰＳＯ）６·（ＣｌＯ４）３、Ｔｂ（ＤＰＳＯ）７·（ＰＦ）及Ｔｂ（ＰＢＳＯ）６·（ＣｌＯ４）３配合物（ＤＰＳＯ为二苯基亚砜ＰＢＳＯ为苯丁基亚砜）。在室温下测定了它们的固体粉末荧光激发和发射光谱，结果表明Ｔｂ（ＤＰＳＯ）６·（ＣｌＯ４）３配合物中Ｔｂ＾３＋的发光强度最高，其中＾５Ｄ４→＾７Ｆ５跃迁谱带强度高达８０６．２ｃｄ，Ｔｂ（ＤＰＳＯ）７（ＰＦ６）３配合物中Ｔｂ＾３＋发光强度次之，Ｔ     

轻稀土与联吡啶和菲罗啉三元配合物的合成与表征

合成了稀土（Ｌｎ）与２，２－联吡啶（Ｌ１）、１，１０－菲罗啉（Ｌ２）的三元固态配合物。通过元素分析、ＩＲ谱、ＴＧＡ谱和摩尔电导等对该系列配合物进行了表征，实测结果与通式ＬｎＬ１Ｌ２Ｃｌ３·３Ｈ２Ｏ符合较好。抗菌试验表明，该系列配合物有较强的广谱抗菌作用。     

稀土硝酸盐与5-Br-PADAP固体配合物的合成及性质研究

在丙酮中合成出部分镧系硝酸盐与５　Ｂｒ－ＰＡＤＡ Ｐ 的固态配合物Ｌｎ（５—Ｂｒ— ＰＡＤＡＰ），（ＮＯ３）３·ｎＨ２Ｏ（Ｌｎ＝Ｌａ．Ｈｏ，Ｔｍ，ｎ＝１；Ｌｎ＝Ｓｍ，Ｅｕ，Ｇｄ，Ｔｂ，ｎ＝ ２）．屋过元素分析．红外光谱，紫外－可见光谱，热分析，Ｘ光粉末衍射物相分 析．溶解性及摩尔电导等测定．研究了配合物的有关性质。     

高氯酸铕,六氟磷酸铕二苯亚砜及苯丁基亚砜配合物的荧…

合成了高氯酸铕二苯亚砜Ｅｕ（ＤＰＳＯ）７（ＣｌＯ４）３以及六氟磷酸铕二苯亚砜Ｅｕ（ＤＰＳＯ）７·（ＰＦ６）３及高氯酸铕苯丁基亚砜Ｅｕ（ＰＢＳＯ）７·（ＣｌＯ４）３配合物。从配合物的荧光激发和发射光谱可以看出：Ｅｕ＾３＋的发光系配体亚砜敏化所致。二苯亚砜配合物的发光强度高于苯丁基亚砜配合物。＾５Ｄ０→＾７Ｆ２谱带在二苯亚砜配合物中发生劈裂，且强度高于＾５Ｄｏ→＾７Ｆ１，这表明Ｅｕ＾３＋在二苯亚砜配合     

草酰胺桥联的新型［Cu_3~ⅡLn~Ⅲ］四核配合物的合成和表征

合成和表征了三个以草酰胺为桥的新型杂四核配合物Ｃｕ３（ｏｘａｅ）３Ｌｎ（ＣｌＯ４）３［其中，ｏｘａｅ为Ｎ，Ｎ’－二（２－氨乙基）草酰胺根阴离子；Ｌｎ为Ｅｕ，Ｇｄ，Ｐｒ］。基于红外光谱、元素分析、电导测定、电子光谱、ＥＳＲ谱以及磁性测量认为这些配合物具有草酰胺桥联结构。测定了Ｃｕ３（ｏｘａｅ）３Ｇｄ（ＣｌＯ４）３·Ｈ２Ｏ的变温磁化率（４～３００Ｋ），求得交换积分Ｊ（ｃｕ－Ｇｄ）为２．７２ｃｍ－１．结果表明，Ｃｕ（Ⅱ）和Ｇｄ（Ⅲ）离子间有弱的铁磁性超交换作用。     

高氯酸铕、六氟磷酸铕二苯亚砜及苯丁基亚砜配合物的荧光光谱

合成了高氯酸铕二苯亚砜Ｅｕ（ＤＰＳＯ）７（ＣｌＯ４）３以及六氟磷酸铕二苯亚砜Ｅｕ（ＤＰＳＯ）７·（ＰＦ６）３及高氯酸铕苯丁基亚砜Ｅｕ（ＰＢＳＯ）７·（ＣｌＯ４）３配合物．从配合物的荧光激发和发射光谱可以看出：Ｅｕ３＋的发光系配体亚砜敏化所致．二苯亚砜配合物的发光强度高于苯丁基亚砜配合物．５Ｄ０→７Ｆ２谱带在二苯亚砜配合物中发生劈裂，且强度高于５Ｄ０→７Ｆ１，这表明Ｅｕ３＋在二苯亚砜配合物中所处格位对称性较低而在苯丁基亚砜配合物中所处格位对称性较高．     

三元体系La（ClO_4）_3·3H_2O—18C6－CH_3COCH_3（25℃）的研究

为了探讨稀土高氯酸盐与冠醚１８Ｃ６在不同溶剂中相平衡行为的规律性，采用半微量相平衡方法研究了三元体系Ｌａ（ＣｌＯ４）３·３Ｈ２Ｏ—１８Ｃ６—ＣＨ３ＣＯＣＨ３在２５℃时的相平衡行为，测定了饱和液相的折光率，并绘制了相应的相图和饱和液相的折光率曲线．结果表明，饱和溶液的折光率曲线与相图中的溶解度曲线相吻合；体系形成了两种化学计量的配合物：Ｌａ（ＣｌＯ４）３·１８Ｃ６·３Ｈ２Ｏ·２ＣＨ３ＣＯＣＨ３和Ｌａ（ＣｌＯ４）３·２（１８Ｃ６）·３Ｈ２Ｏ·ＣＨ３ＣＯＣＨ３考察了相平衡过程中水的行为及不同溶剂对Ｌａ（ＣｌＯ４）３·３Ｈ２Ｏ与１８Ｃ６间配合行为的影响，结果指出：不论是在液相中还是在湿固相中，Ｈ２Ｏ与Ｌａ（ＣｌＯ４）３的摩尔比总是３：１，从而证明了相平密结果的可靠性；从合成固态配合物角度出发，用丙酮和乙醇作溶剂比较恰当．     

吡唑－3，5－二羧酸稀土配合物的合成及表征

报道８种稀土－吡唑－３，５－二羧酸（Ｐ２ｏＡ）配合物的合成，通过元素分析、红外、紫光光谱、差热对配合物的结构进行了表征。配合物的通式为：Ｌｎ＿２Ｌ＿３·ｕＨ＿２Ｏ（Ｌｎ￣（３＋）＝Ｌａ￣（３＋）、Ｐｒ￣（３＋）、Ｎｄ￣（３＋）、Ｓｍ￣（３＋）、Ｅｕ￣（３＋）、Ｔｂ￣（３＋）、Ｈｏ￣（３＋）、Ｙ￣（３＋）；Ｌ￣（２－）＝Ｐ２ＤＡ￣（２－）；ｎ＝６～１１）。     

稀土烯丙基化合物的研究(XV)——含环戊二烯基或吡咯基的异核混配型稀土烯丙基配合物的合成

以２－甲基烯丙基氯化镁与无水稀土氯化物低温下反应,得到含镁２－甲基烯丙基稀土配合物（Ｌｎ（Ｃ４Ｈ７）２（Ｍｇ２Ｃｌ５（ＴＨＦ）４）．该配合物与环戊二烯或吡咯进行配体取代反应,分别得到两个系列的含环戊二烯基（Ｃ５Ｈ５）或吡咯基（Ｃ４Ｈ４Ｎ）的异核混配型稀土烯丙基配合物（Ｌｎ２（Ｃ５Ｈ５）３（Ｃ４Ｈ７）Ｍｇ３Ｃｌ８（ＴＨＦ）６,Ｌｎ２（Ｃ４Ｈ４Ｎ）３（Ｃ４Ｈ７）Ｍｇ３Ｃｌ８（ＴＨＦ）６（Ｌｎ＝Ｃｅ,Ｐｒ,Ｎｄ））．这２个配合物均经元素分析、红外光谱、质谱鉴定及摩尔电导的测定     

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)

正~~     

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.