纯品枸杞多糖对小鼠抗疲劳的效果

将纯品枸杞多糖分为５,１０,２０,５０,１００ｍｇ．ｋｇ＾－１．ｄ＾－１等５个不同剂量的实验组,灌喂小鼠,观察其对小鼠抗疲劳的效果。纯品枸杞多糖能显地增加小鼠肌糖原,肝糖原储备量;提高运动前及游泳后９０ｍｉｎ及１５０ｍｉｎ ＬＤＨ总活力,降低小鼠剧烈运动后血尿素氮增量,加快运动后血尿素氮的恢复速度;以１０ｍｇ．ｋｇ＾－１．ｄ＾－１剂量组效果最佳。     

采后河套蜜瓜（Cucmismelocv.Hetao）软化的生理生化研究

采后河套蜜瓜贮存中,呼吸强度和内源乙烯含量均发生跃变,并都在采后６ｄ达到最大值,分别为７６．６ｍｇＣｏ２．ｋｇ＾－１,ｈ＾－１和１８．５５ｎｍｏｌ．ｍｌ＾－１。     

珍珠花丛生芽的诱导及生根条件的研究

诱导珍珠花（Ｓｔａｐｈｙｌｅａ ｂｕｍａｌｄａ ＤＣ）丛生芽的最佳培养基为ＭＳ基本培养基附加ＮＡＡ０．２ｍｇ．Ｌ＾－１和ＢＡ５ＭＧ．ｌ＾－１,无菌苗在１／２ＭＳ培养基中附加ＮＡＡ１ｍｇ．Ｌ＾－１、活性碳０．４５ｇ．Ｌ＾－１、硫胺素１ｍｇ．Ｌ＾－１、蔗糖２０ｇ．Ｌ＾－１能长根形成完整植株。     

包被微量元素对猪生产性能及在体内存留量的影响

选用７０～８０日龄长本杂种猪２４头，随机分为４组，每组６头，以测定不同添加水平的石蜡包被处理微量元素对育肥猪生产性能及组织器官器中存留量的影响。Ａ组为对照组，不添加微量元素，Ｂ组按日粮中Ｃｕ，４ｍｇ·ｋｇ－１；Ｍｎ，１５．５ｍｇ·ｋｇ－１；Ｆｅ，３９ｍｇ·ｋｇ－１；Ｚｎ，６０ｍｇ·ｋｇ－１；Ｓｅ，０．１５ｍｇ·ｋｇ－１；Ｉ，０．１４ｍｇ·ｋｇ－１添加，Ｃ组和Ｄ组几种元素的添加水平分别为Ｂ组的１．５和２．０倍。结果表明，添加包被处理的微量元素能明显促进猪的生长，提高日增重，降低料重比。但试验组间无明显差异（Ｐ＞０．０５）。猪组织器官中Ｃｕ，Ｚｎ，Ｆｅ，Ｍｎ４种元素的含量，都随日粮中元素含量的提高，在心、肝、脾、肾、胰、肌肉中的含量有不同程度的提高     

黄泛平原砂土钾素状况及钾肥效应研究

通过田间长期定位施肥、室内模拟及大量室内分析对黄泛区砂质潮土进行了研究，结果表明：砂质潮土速效钾含量中等偏低，缓效钾含量高，二者平均分别为７６．４ｍｇ．ｋｇ＾－１和６３１．７ｍｇ．ｋｇ＾－１，各形态钾含量为水溶态钾＜代换态钾＜非代换态钾＜矿物态钾，代换态钾与非代换态钾分别占全钾的０．３２％和３．５％，代换态和非代换钾与土壤物理性粘粒显著正相关，水溶性钾与之成相关，土壤粘土矿物以云母为主，土壤缓效钾     

海南一些港湾海水的水化学特征

测定了海南岛亚龙湾，鹿回头湾及石梅湾沿岩海水的水化学和。结果表明，溶解氧为５．８５－６．８６ｍｇ．ｌ＾－１，总碱度为２．６８－５．８３ｍｍｏｌ．ｌ＾－１，总磷为０．０３３－０．０５３ｍｇ．ｌ＾－１，总氨为２．７８－３．７４ｍｇ．ｌ＾－１，总有机碳为９．７－１０．９ｍｇ．ｌ＾－１。     

温度和光照等因素对荸荠试管球茎形成的影响

“桂林马蹄”和“余杭大红袍”的荸蔼茎尖接种在ＭＳ＋ＫＴ０．１ｍｇ．Ｌ＾－１地培养基上１５ｄ后,诱导出的试管苗在ＭＳ＋６－ＢＡ２．０ｍｇ．Ｌ＾－１＋ＮＡＡ１．０ｍｇ．Ｌａ＾－１培养基上增殖培养２５ｄ后,再经６０ｄ培养可诱导出试管球茎,供试两品种试管球茎形成的最适增减其分别为ＭＳ＋６－ＢＡ１．０ｍｇ．Ｌ＾－１＋蔗糖９０ｇ．Ｌ＾－１和ＭＳ＋６－ＢＡ０．８ｍｇ．Ｌ＾－１＋蔗糖９０ｇ．Ｌ＾－１,最适培养条件     

NaHSO3对草莓生理学的影响

在草莓花期喷施２００ｍｇ．Ｌ＾－１的光呼吸抑制剂ＮａＨＳＯ３，经测试，草莓植株叶绿素含量增加，光合速率增强，比叶重提高，硝酸还原酶活性受抑制，单果重增加。草莓果实品质明显改善，可溶性总糖含量增加２１％，提早成熟４－７天，亩产量增加１２％。     

张掖地区玉米施用锌肥效果评价

张掖地区玉米施用锌肥效果评价张树清，顿志恒，李宏斌（甘肃省土肥站７３００００）（张掖地区土肥站７３４０００）１土壤有效锌分布及丰缺程度张掖地区耕种土壤有效锌含量平均值为０．４８ｍｇ／ｋｇ，变化幅度为０．１６－１．４３ｍｇ／ｋｇ，按有效锌临界值０．５ｍ...     

稀土元素对胡麻生长发育的影响

喷施稀土液对胡麻营养生长和经济性状影响的研究结果表明，喷施５００ｍｇ·Ｌ－１以内稀土液促进根系生长．在３００～５００ｍｇ·Ｌ－１时提高植株高和工艺长度，且茎粗和分茎数明显增加，３００～４００ｍｇ·Ｌ－１时增加叶密度和叶面积，提高叶绿素的含量３００～５００ｍｇ·Ｌ－１时明显增加分枝数和株果数，千粒重和株粒重显著提高．     

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.