高吸附率的主同分子微球合成及表征

采用无皂乳液聚合和表面铸型聚合二步法，合成了对Ｃｕ（Ⅱ）离子具有较高吸附率的高分子微球 ，考究了Ｃｕ（Ⅱ）离子浓度对生球形态的影响，羟基单体对微球大小的影响，并采ＦＴ－ＩＲ，ＳＥＭ和元素分析对微球进行表征。     

高吸附率的高分子微球合成及表征

采用无皂乳液聚合和表面铸型聚合二步法,合成了对Ｃｕ（Ⅱ）离子具有较高吸附率的高分子微球。考察了Ｃｕ（Ⅱ）离子浓度对微球形态的影响,羟基单体对微球大小的影响,并采用ＦＴ－ＩＲ,ＳＥＭ和元素分析对微球进行表征。     

铜,锌,镉在麦饭石上的吸附研究

报道了在水溶液中麦饭石对Ｃｕ（Ⅱ）、Ｚｎ（Ⅱ）、Ｃｄ（Ⅱ）的吸附行为．其吸附量（）随各金属离子平衡浓度的变化规律，可分别用Ｆｒｅｕｎｄｌｉｃｈ方程和Ｌａｎｇｍｕｉｒ方程描述．百分吸附量（％）随ｐＨ值变化曲线为正“Ｓ”型，麦饭石对三种金属离子交换能力大小顺序为：Ｃｕ（Ⅱ）＞Ｚｎ（Ⅱ）＞Ｃｄ（Ⅱ）．２５℃ｐＨ为６．０￣８．０条件下，三种离子的饱和吸附量次序与其相同．本文还对吸附机理进行了探讨．     

金属离子的反相微胶团萃取研究

研究了用正己烷－环己醇、异辛烷－正己醇作萃取溶剂,铬天青Ｓ作萃取剂,加入Ｎ－氯代十六烷基吡啶、十六烷基三甲基溴化铵等阳离子表面活性剂,在ＨＮＯ３和ＨＣｌ介质中Ｆｅ（Ⅱ）,Ｌａ（Ⅱ）,Ｃｕ（Ⅱ）和Ｐｄ（Ⅱ）等金属离子的反相微胶团萃取行为。讨论了不同浓度的电解质溶液和酸溶液对有机相中金属离子进行反萃取的影响,实现了Ｆｅ（Ⅲ）－Ｃｕ（Ⅱ）,Ｌａ（Ⅲ）－Ｃｕ（Ⅱ）等金属离子间的定量萃取分离。     

离子识别铸型高分子微球的合成

研究了苯乙烯（Ｓｔ）,丙烯酸丁酯（ＢＡ）,甲基丙烯酸（ＭＡＡ）与二乙烯苯（ＤＶＢ）铸型高分子微球的合成,讨论了微球的结构与吸附性能,分析了这种微球对铸型金属离子产生选择性吸附,即铸型效应的来源。     

聚丙烯酸甲酯—二乙烯苯微球的制备

通过无皂乳液聚合方法制备了单分散性好的丙烯酸甲酯（ＭＡ）－二乙烯苯（ＤＶＢ）交联微球。研究了引发剂、单体、交联剂的用量、温度、搅拌速率、离子强度对聚合反应速率和微球粒径的影响。得到了外形较规则、粒径为７３０ｎｍ左右、分布均匀的交联丙烯酸甲酯－二乙烯苯微球,其制备条件是：以双蒸馏水为反应体系,Ｃ（ＭＡ）０＝０．８７１ｍｏｌ／Ｌ,Ｃ（ＤＶＢ）＝０．０６７ｍｏｌ／Ｌ,Ｔ＝７０℃,转速为３００ｒ／ｍｉｎ,     

季铵化壳聚糖微球的制备及其对酸性媒介黑PV的吸附性能研究

本文采用反相悬浮交联法制备了壳聚糖微球,并以3-氯-2-羟基丙基三甲基氯化铵为改性剂在微球上引入了季铵盐基团．考察了改性后的微球对染料酸性媒介黑PV（PV）的吸附性能．实验结果表明季铵化壳聚糖微球对偶氮染料PV有较好的吸附能力．实验条件下,最大平衡吸附量为1759mg／g,等温吸附很好地符合Langmuir等温方程,表明为单分子层吸附．吸附量受染料初始浓度、温度和溶液pH等因素影响．负载染料的微球容易洗脱,洗脱再生后的微球可重复使用．     

聚硫醚主链的咪唑型螯合树脂合成及吸附性能

通过聚环硫氯丙烷与咪唑进行高分子反应，合成了以聚硫醚为主链、侧链带有咪唑基团的螯合树脂（简称ＰＳＩＭ）。该树脂对Ａｕ（Ⅲ）、Ｐｄ（Ⅱ）、Ｐｔ（Ⅳ）、Ａｇ（Ⅰ）等贵金属离子具有很强的吸附能力，吸附容量（ｍｍｏｌ金属离子每克树脂）分别达６．０１、５．５３、３．４３和４．７３，对Ｈｇ（Ⅱ）的吸附次之，对Ｃｕ（Ⅱ）、Ｚｎ（Ⅱ）、Ｃｄ（Ⅱ）很弱，而对Ｐｂ（Ⅱ）不吸附，并考察了介质酸浓度对ＰＳＩＭ树脂吸附性能的影响     

Cu（Ⅱ）钍试剂络合物吸附波

在ＮａＯＨ（０．０３２ｍｏｌ／Ｌ）介质中，钍试剂（Ｔｈｏｒｏｎ简记为Ｔｏｒ）给出一个吸附波，Ｅｐ＝－０．４８Ｖ（Ｖｓ·ＳＣＥ．），在该介质中Ｃｕ－Ｔｏｒ络合物给出一个很灵敏的络合物吸附波，Ｅｐ＝－０．５０Ｖ．峰电流与Ｃｕ（Ⅱ）的浓度在０．０４～０．７２μｇ／ｍＬ范围内成正比。研究了该波的特性与机理。     

绞股蓝中痕量铅和铜的测定──黄原酯棉分离富集火焰原子吸收光谱法

研究了自制黄原酯棉对ＣＵ（Ⅱ）和Ｐｂ（Ⅱ）的动态吸附条件及模拟量共存元素对吸附的干扰程度，拟定了用火焰原子吸收光谱法测定绞股蓝及其浸泡液中Ｃｕ和Ｐｂ的分析方法，并对方法进行了检验。结果表明：在ｐＨ＝３、黄原酯棉用量为０．２ｇ、流速为３ｍＬ／ｍｉｎ时，浓度不低于０．０２μｇ／ｍＬ的Ｃｕ（Ⅱ）和Ｐｂ（Ⅱ）能被定量吸附；用ＨＮＯ３或１∶１ＨＮＯ３（２ｍＬ）可完全解吸；当有Ｃａ２＋、Ｍｇ２＋、Ｋ”、Ｆｅ３＋（４０ｍｇ）、Ａｌ３＋、Ｃｍ４（１０ｍｇ），Ｍｎ２＋、Ｃｒ－（５ｍｇ）和Ｎａ＋（５００ｍｇ）之一共存时未出现干扰；模拟消化液中共存离子对校正曲线影响很少；校正曲线的相关系数为０．９９７（Ｃｕ）和０．９９６（Ｐｂ）；消化法标准回收率为９６％～１０４％（Ｐｂ）和９７％～１０３％（Ｃｕ），浸出液法标准回收率为９５％～１０２％（Ｐｂ）和９７％～１０１％（Ｃｕ）。     

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.