尼龙6/乙烯-1-辛烯共聚物接枝马来酸酐共混体系的亚微相态与性能

采用熔融挤出法制备了ＰＡ６／ＰＯＥ和ＰＡ６／ＰＯＥｇＭＡＨ共混合金,借助于力学试验机、ＴＥＭ、ＳＥＭ、Ｍｏｌａｕ实验和毛细管流变仪测定了共混合金的力学性能、亚微相态、冲击断口形貌和流变性能,系统地研究了ＰＯＥｇＭＡＨ对ＰＡ６的增容增韧作用。结果表明,ＰＯＥ与ＰＡ６是不相容体系,经ＭＡＨ接枝改性后的ＰＯＥ与ＰＡ６发生化学反应,生成的ＰＯＥｇＰＡ６共聚物起到了原位增容作用,细化了分散相尺寸,有效地改善了合金的力学性能,ＰＡ６／ＰＯＥｇＭＡＨ共混合金的缺口冲击强度是ＰＡ６的１２倍。     

水滑石及柱撑水滑石的制备和表征

制备了水滑石Ｍｇ６Ａｌ２（ＯＨ）１６ＣＯ３．４Ｈ２Ｏ和类水滑石Ｍｇ４Ａｌ２（ＯＨ）１２（ＮＯ３）２．４Ｈ２Ｏ，Ｚｎ６Ａｌ２（ＯＨ）１６ＣＯ３．４Ｈ２Ｏ它们的晶体结构基本相似，热稳定性都不很高，２００℃时将失去全部结晶水，２００～４５０℃时将失去全部层间阴离子，以及大部分ＯＨ＾－。用离子交换法和共沉淀法制轩了１，５－二萘磺酸柱撑水滑石Ｍｇ４Ａｌ２（ＯＨ）１２（Ｃ１０Ｈ６（ＳＯ３）２）．４Ｈ２Ｏ，其层     

HPMBP和HAP协同萃取部分Ln（Ⅲ）

研究了 １苯基３甲基４苯甲酰基吡唑酮５（ Ｈ Ｐ Ｍ Ｂ Ｐ）和４羟基安替比林（ Ｈ Ａ Ｐ）的氯仿溶液从硝酸介质中对 Ｌｎ（Ⅲ）（ Ｌｎ＝ Ｌａ, Ｐｒ, Ｎｄ, Ｓｍ , Ｇｄ）的协同萃取;通过斜率法确定了萃合物的组成为 Ｌａ２（ Ｐ Ｍ Ｂ Ｐ）６（ Ｈ Ａ Ｐ）３;考察了萃取剂浓度和溶液酸度对萃取机能的影响;测定了 Ｌａ３＋ , Ｐｒ３＋ , Ｎｄ３＋ , Ｓｍ ３＋ , Ｇｄ３＋ 的半萃取ｐ Ｈ 值分别为４．１２,３．６９,３．５４,３．５０,３．４２,合成了 Ｈ Ｐ Ｍ Ｂ Ｐ和 Ｈ Ａ Ｐ对 Ｌａ３＋ 的协同萃取配位化合物 Ｌａ２（ Ｐ Ｍ Ｂ Ｐ）６·（ Ｈ Ａ Ｐ）３。     

两种氟代哒嗪酮糖苷的合成

报道 ４氟３［２′,３′,４′,６′四 Ｏ乙酰基β Ｄ吡喃葡萄糖氧基］１苯基６哒嗪酮和 ４氟３羟基１（２′,３′,５′三 Ｏ苯甲酰基β Ｄ呋喃核糖基）６哒嗪酮的合成． 所得糖苷结构由 Ｉ Ｒ, Ｕ Ｖ, １ Ｈ Ｎ Ｍ Ｒ 和元素分析予以表征     

Na_3AlF_6-5%Al_2O_3熔体对铝电解机械掺杂碳阳极的润湿性研究

采用机械掺杂法制备了掺有不同复合氧化物粉末的碳阳极,并测试了熔融状态下Ｎａ３ＡｌＦ６５％ Ａｌ２Ｏ３ 熔体对不同掺杂电极的润湿性．实验结果表明,掺有ＬｉＡｌＯ２ 和ＣａＡｌ２Ｏ４ 的碳阳极对熔盐显示了较好的润湿性．     

新的六方晶钨氧化合物Na_xWO_3的制备

用热液法制备了ＮａｘＷＯ３,ｘ为０００１８～００３８０,这是一类新的六方晶钨氧化合物．斜方晶钨酸钠酸化水洗,再进行热液脱水;当钠含量≥１６０×１０－６时（质量分数）,得到斜方晶ＷＯ３·１３Ｈ２Ｏ单相,当钠含量≤４０×１０－６时,得到ＷＯ３·Ｈ２Ｏ单相,当钠含量在４０×１０－６～１６０×１０－６之间则为两相混合物．斜方晶ＷＯ３·１３Ｈ２Ｏ在２９０～４２０℃脱水得到六方晶ｈＮａｘＷＯ３;继续升高温度在４２０～４５０℃恒温处理,则得到单斜晶ｍＮａｘＷＯ３．     

十二烷基磺酸钠微乳状液的相行为及其结构转变

制备了Ｃ１２Ｈ２５ＳＯ３Ｎａ／ｎＣ４Ｈ９ＯＨ／ｎＣ７Ｈ１６／Ｈ２Ｏ和Ｎａ２ＳＯ４／Ｈ２Ｏ／Ｃ１２Ｈ２５ＳＯ３Ｎａ／ｎＣ４Ｈ９ＯＨ／ｎＣ７Ｈ１６体系在ｋｍ＝ＷＣ４Ｈ９ＯＨ／ＷＣ１２Ｈ２５ＳＯ３Ｎａ＝２时的相图．测定了起始含油质量分数为２１的上述表面活性剂辅助表面活性剂正庚烷体系在纯水和在不同浓度Ｎａ２ＳＯ４水溶液中单相微乳状液的电导率随含水量的变化曲线．由电导率曲线研究了微乳状液由Ｗ／Ｏ→二连续→Ｏ／Ｗ型的结构转变．     

系列Ln（Ⅲ）—羧基二聚物的电子光谱研究（Ln=Nd,Sm …

报道了自合成的３种含Ｌｎ＾３＋的二聚物晶体Ｎｄ２（ＣＨ３ＣＯＯ）４（ＯＮＯ２）２（Ｃ１２Ｈ８Ｎ２）２（Ａ）,Ｓｍ２（Ｃ６Ｈ５ＣＯＯ）６（Ｃ１２Ｈ８Ｎ２）２（Ｂ）,Ｅｕ２（Ｃ６Ｈ５ＣＯＯ）６（Ｃ１２Ｈ８Ｎ２）２（Ｃ）的ＵＶ－ＶＩＳ－ＮＩＲ光谱数据,依据Ｌｎ＾３＋能级图以及相应光谱项和选律,对各谱带进行了分析指认,并与Ｌｎ＾３＋离子和简单化合物Ｌｎ（ＮＯ３）．６Ｈ２ＨＯ光谱的对比,讨论了配位场对二聚物     

Dawson结构钨砷酸电荷转移配合物的合成与性质研究

以２∶１８钨砷酸为电子受体、喹啉（Ｃ９Ｈ７Ｎ）和８－羟基喹啉（Ｃ９Ｈ７ＯＮ）为电子给体合成了两种新型电荷转移配合物（Ｃ９Ｈ７ＮＨ）６［Ａｓ２Ｗ１８Ｏ６２］·Ｃ９Ｈ７Ｎ·３Ｈ２Ｏ（１）、（Ｃ９Ｈ７ＯＮＨ）６［Ａｓ２Ｗ１８Ｏ６２］·７Ｈ２Ｏ（２）．用元素分析、红外光谱、固体电子光谱、Ｘ射线粉末衍射、电子自旋共振以及循环伏安对它们进行了表征．结果表明：配合物（１）具有光致变色性质而８－羟基喹啉配合物（２）则不具有此性质．［Ａｓ２Ｗ１８Ｏ６２］６－在非质子介质（ＤＭＦ）中经历两步单电子可逆还原和两步单电子不可逆还原．     

用热分析方法研究制备了Ni／Al2O3催化剂过程中的热分…

以Ｎｉ（ＮＯ３）２．６Ｈ２Ｏ为参照物，用热重分析和差热分析方法，通过研究一系列不同Ｎｉ负载量的Ｎｉ（ＮＯ３）２／Ａｌ２Ｏ３的热分解过程发现，无论是在空气气氛还是氮气气氛中，纯Ｎｉ（ＮＯ３）２．６Ｈ２Ｏ的分解均是分五步进行的，其中前四步为脱水，后一步是Ｎｉ（ＮＯ３）２分解为Ｎｉ２Ｏ３．当Ｎｉ（ＮＯ３）２负载于Ａｌ２Ｏ３表面后，其分解情况随载Ｎｉ量的不同而发生变化。与纯Ｎｉ（ＮＯ３）２．６Ｈ２Ｏ相比，     

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.