内蒙古草地牧草中氟（F）,硒（Se）含量及分布的调查研究

本文通过内蒙古草地上，四个地带性草地类型十个调查区域的１５４份优良牧草中，氟、硒的含量及分布调查分析表明：在草甸草原中氟、硒含量分别为０．０２ｍｇ／ｋｇ、０．０７ｍｇ／ｋｇ，在典型草原中氟硒含量分别为０．０１ｍｇ／ｋｇ，０．１４ｍｇ／ｋｇ，在荒漠化草原中氟硒含量分别为０．０２ｍｇ／ｋｇ，０．０９ｍｇ／ｋｇ，在草原化荒漠中氟硒含量分别为０．０７ｍｇ／ｋｇ，０．１０ｍｇ／ｋｇ．全区草地上生长的１６种牧草中，两项元素均被检出，但含量都比较低，经数理统计，四个地带性草地类型中氟和硒含量差异都不明显．研究氟和硒在牧草中的含量，对于环境化学，地方病防治和我区富牧业生产有一定的参考意义．     

利用粉煤灰提高粮食作物含硒量的研究

研究土施粉煤灰对水稻和小麦含硒量的影响，结果表明，土施粉煤灰可以显著提高水稻和小麦的含硒量，一次性施用粉煤灰２０ｇ／ｋｇ土（合每亩３０００ｋｇ）时，水稻精米和小麦籽粒含硒量均达到０．５ｍｇ／ｋｇ以上，但不超过１．０ｍｇ／ｋｇ，一次性施用粉煤灰不超过４０ｇ／ｋｇ二（合每亩６０００ｋｇ）时，水稻和小麦的产量分别增加１．０％～１７．１％和６５％～１４．５％，且水稻精米和小麦籽粒中Ｃｄ、Ｃｒ、Ｐｂ、Ａｓ等重金属的含量均未超过食品卫生标准。     

红豆杉细胞植板方法的研究

在红豆杉细胞植板中,适宜的培养基是优化的ＭＳ培养基,其中ＮＡＡ浓度为０．５ｍｇ／Ｌ,６ＢＡ浓度为０．５ｍｇ／Ｌ;培养细胞生长周期约４０ｄ;培养基中最优碳源浓度是：蔗糖３０ｇ／Ｌ、葡萄糖１０ｇ／Ｌ．无机盐最佳浓度是：ＮＨ＋４１０ｍｍｏｌ／Ｌ,ＮＯ－３４０ｍｍｏｌ／Ｌ,ＰＯ３－４１．２５ｍｍｏｌ／Ｌ．研究表明,培养基的ｐＨ值与植板率密切相关．氨基酸及维生素等有机成分能明显促进细胞生长．来自细胞悬浮培养物的条件培养基能显著地促进红豆杉培养细胞的单细胞在低密度植板时的克隆形成     

灵芝营养液的发酵法制备及分析

对灵芝营养液的制备条件进行了探讨。研究表明,筛选所获灵芝菌株在（２９±１）℃,ｐＨ４．０～５．０的适宜条件下,经９６ｈ深层通气培养可获得菌丝体鲜重＞３５０ｇ／Ｌ的发酵醪液。该研究采用的培养基适用性广,发酵醪液即可应用于营养液的制备。细胞破壁处理可有效地提高提取液中多糖及氨基酸的质量浓度,经低温浓缩后的灵芝营养液氨基酸构成全面,其质量浓度为１１．１２ｇ／Ｌ,氨基酸中必需氨基酸的质量分数为３２％;多糖的质量浓度为１２ｇ／Ｌ;还测得有核苷类、甾醇类物质。该营养液外观黑红色、不透明,重金属、大肠杆菌及其它致病菌等理化卫生指标符合国家有关规定。急性毒性实验表明受试物安全无毒（ＬＤ５０＞２１．５ｇ／ｋｇ）。经小鼠游泳耗竭实验证明灵芝营养液具有抗疲劳作用。     

红豆杉细胞植板方法的研究

在红豆杉细胞植板中、适宜的培养基是优化的ＭＳ培养基,其中ＮＡＡ浓度为０．５ｍｇ／Ｌ,６ＢＡ浓度为０．５ｍｇ／Ｌ,培养细胞生长周期为４０ｄ;培养在中最优碳源浓度是：蔗糖３０ｇ／Ｌ,葡萄糖１０ｇ／Ｌ,无机盐最佳浓度是：ＮＨ＾＋４１０ｍｍｏｌ／Ｌ,ＮＬ＾－３４０ｍｍｏｌ／Ｌ,ＰＯ＾３－４１．２５ｍｍｏｌ／Ｌ。研究表明,培养基的ｐＨ值与植板率在。氨基酸及维生素等有机成分能明显促进细胞生长。     

有机锌硒膨化玉米粉的研究

本文论述了有机锌硒的麦芽富集方法, 以富锌硒麦芽为强化剂生产膨化玉米粉的配方和工艺过程。富硒麦芽生产的最佳条件： 亚硒酸钠溶液浸种浓度２００ｐｐｍ 、温度２４ ℃～２５ ℃、时间６ｈ ～７ｈ。麦芽中有机硒含量６０ｐｐｍ 以上。富锌麦芽生产方法基本一样。有机锌转化率高达９０５ 。有机锌硒膨化玉米粉最佳配方： 玉米１２ｋｇ、白砂糖０１ｋｇ 、富锌麦芽汁８５９ｍｌ、富硒麦芽汁６７ｍｌ。产品色泽浅黄, 口感细腻,玉米风味浓郁。每１００ｇ 产品中含有机锌４ｍｇ～５ｍｇ , 有机硒１４μｇ ～１５μｇ , 实为老少皆宜产品。     

pH对麦角菌产麦角隐亭的影响

在不同ｐＨ（４．１～７．１）的种子培养基中培养的麦角菌（Ｃｌａｖｉｃｅｐｓｐｕｒｐｕｒｅａ（Ｆｒ．）Ｔｕｌ）ＡＴＣＣ２００１９的菌丝体经发酵后，其发酵液中麦角隐亭的产量以种子培养基起始ｐＨ５．２时最高．为４４．８５μｇ／ｇＬ，经方差分析，差异显著（Ｐ＜０．０１）；菌丝体干重则没有明显差异．ｐＨ５．２所得的种子菌丝体接入不同ｐＨ（４．１～８．１）的发酵培养基．结果：菌丝体干重无差异，发酵液中麦角隐亭的产量以发酵培养基起始ｐＨ５．２时最高，达５１．３１μｇ／ｍＬ，经方差分析，差异显著（Ｐ＜０．０１）．发酵过程中调节培养基的ｐＨ，使ｐＨ稳定在５．２，结果菌丝体干重从５７．３１增加到８３．２８ｍｇ／ｍＬ，但麦角隐亭产量未见明显提高．     

富硒鲍鱼菇的深层培养及其特性

报导在含有不同浓度无机硒的液体培养基中培养鲍鱼菇菌丝体，探讨其耐硒和富硒特性。结果表明：鲍鱼菇有较强的耐硒特性和很强的富硒能力，鲍鱼菇菌丝体硒含量随培养基质硒浓度的增加而增高，在培养基中添加硒量为５μｇ／ｍｌ时，富硒鲍鱼菇菌丝体含硒量可达２００μｇ／ｍｌ时，为对照的４０倍，硒回收率达３８．８％，其氨基酸及多糖含量均高于对照。     

棒曲霉UA—2木聚糖酶的蔗渣固态发酵

棒曲霉（Ａｓｐｅｒｇｉｌｕｓｃｌａｖａｔｕｓ）ＵＡ－２固态发酵蔗渣产木聚酶的培养基为每克蔗渣加营养液５ｍｌ，初始ｐＨ８．５．营养液的适宜组成为每升含：ＮＨ４ＮＯ３１０ｇ、Ｋ２ＨＰＯ４６ｇ、ＭｇＳＯ４·７Ｈ２Ｏ０．７５ｇ、ＣａＣｌ２０．７５ｇ、ＦｅＳＯ４·７Ｈ２Ｏ１１．２５ｍｇ、ＭｎＳＯ４·Ｈ２Ｏ３．７５ｍｇ、ＺｎＳＯ４３．０ｍｇ、ＣｏＣｌ２４．５ｍｇ．在上述培养基中接入其湿重１０％（Ｗ／Ｗ）的新鲜的ＵＡ－２种子曲，２８℃培养１０８ｈ，其木聚糖酶，滤纸降解酶和羧甲基纤维素酶的活力分别为２６９５．６、２８．５和４２．７ｕ／ｇ蔗渣．酶反应的最适ｐＨ５．０，最适温度５０℃；在ｐＨ４．０～１１．０内酶活性十分稳定．５０℃保温１ｈ，酶活剩余５５％，８℃下放置２３ｄ，活力几乎不变．磷酸盐，半胱氨酸对酶有激活作用，ＥＤＴＡ和对氯汞本甲酸对酶有抑制作用     

原子吸收解吸仪分离测定食品中镉

应用ＹＡＥ－２原子吸收解析仪自动萃取食品中的镉。结果表明，镉在ｐＨ８－９的氨缓冲溶液存在的条件下被ＥＤＴＡ富集柱富集，用１ ｍｏｌ／Ｌ硝酸溶液作洗脱载液，测定食品镉含量在１００－２０００μｇ／ｋｇ之间时，线性关系成立。标准差为０．００４２ｍｇ／ｋｇ，均值为０．２１７ｍｇ／ｋｇ，变异系数１．９３％，检出限为５μｇ／Ｌ。本方法适用于各种食品中镉的分析，是一种在线高速解吸的分离分析技术。     

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.