枫香半同胞子代遗传变异研究

对幼林期枫香首批优树的半同胞自由授粉家系子代进行生长分析。结果表明，在参试家系间存在着丰富的遗传变异，树高、年高、地径、冠幅和分枝数的家系遗传力分别为：14．53％～47．58％，13．36％～35．43％，6．40％～37．04％，14．25％～35．30％，6．19％～18．78％；每个性状的单株遗传力则分别为21．26％～52．91％，16．97％～28．63％，13．23％～22．22％，18．76％～30．69％，9．03％～15．58％；各性状的相关程度较高，树高、年高、地径及冠幅和分枝数等性状的加性遗传变异系数分别为4．979％～9．667％，5．913％～12．783％，5．164％～6．731％，6．240％～10．567％，4．952％～11．780％；估算的中选优良家系树高和地径的遗传增益分别为6．52％～19．OO％和3．82％～24．32％。     

混凝沉淀对水中微量有机磷农药的去除研究

对含有微量敌敌畏、乐果、马拉硫磷、敌百虫的四种水样，均分别采用复合铝铁、三氯化铁、硫酸铝、聚合硫酸铁进行了混凝沉淀实验，实验结果表明：四种混凝剂对敌敌畏的去除率分别为12．0％，8．0％，4．0％，4．0％；对乐果的去除率分别为22．0％，8．0％，8．0％，4．0％；对马拉硫磷的去除率分别是8．0％，4．0％，4．0％，4．0％；对敌百虫的去除率分别是12．0％，16．0％，4．0％，16．0％．因此，混凝沉淀不能有效地去除水中微量有机磷农药。     

黄毛青冈群落的净第一性生产量研究

本文研究了滇中地区半湿润常绿阔叶林黄青冈群落的净第一性生产量，其净生产量为１４１１．７ｇ／ｍ￣２·ａ，其中ｔ树干占４０．０９％，枝占２０．０２％，叶占２０．１８％，根占１８．６１％，叶被采食量占１．１０％。优势种黄毛青冈占４９．２０％，其它栎类占１３．１５％，其它常绿树占２４．８３％，落叶树占８．６２％，灌木和草本植物各占３．５８％和０．６１％。     

元江栲群落的生物量研究

本文研究了滇中半湿润常绿阔叶林元江栲群落的生物量。群落的总生物量为２６９．７２９ｔ／ｈｍ￣２，其中树干占５４．６９％，枝占１６．６８％，叶占２．９２％，根占２２．４０％，凋落物占３．３１％。群落的活生物量为２６０．８１１／ｈｍ￣２，其中优势种元江栲占６５．４３％，其它栎类占１８．１０％，其它常绿树占９．３２％，落叶树占６．７５％，灌木种占０．２１％，草本植物占０．０２％。     

元江栲群落的净第一性生产量研究

本文研究了滇中半湿润常绿阔叶林元江栲群落的净第一性生产量，其净生产量为１９５０．０ｇ／ｍ￣２·ａ，其中树干占３３．０９％，枝占２５．４７％，叶占２１．４２％，根占１８．６０％，叶被采食量占１．４２％。优势种元江栲的净生产量占群落净生产量的６１．９１％，其它栎类占１７．２１％，其它常绿阔叶树占１１０．２４％，落叶树占８．７８％，灌木占０．７５％，草本植物占０．１３％。     

火龙果种仁营养成分的测定和评价

对火龙果种仁的营养成分进行了分析、研究结果表明，脂肪含量为32．02％(占种仁的质量分数，下同)，蛋白质含量为22．06％．其它营养成分含量为淀粉21．03％，粗纤维10．35％，水分5．80％，灰分3．18％，总糖1．75％．同时对种仁蛋白质的氨基酸组成和脂肪酸组成进行了分析，脂肪酸中不饱和脂肪酸含量高达80．83％(质量分数)，其中亚油酸的含量最高，为54．43％。     

导入大豆总DNA改良大麦籽粒营养品质

利用花粉管通道法和基因枪法将大豆总DNA直接导入大麦。采用微量凯氏定氮法和氨基酸自动分析仪进行大麦后代籽粒蛋白质含量和氨基酸含量分析。结果显示：(1)经花粉管通道法导入大豆总DNA获得的大麦后代有6个单株籽粒蛋白质含量明显超过对照(12．91％)，它们是18．23％，16．61％，16．42％，16．58％，16．22％和16．38％，占总数比例的7．06％；(2)经基因枪法导入大豆总DNA共获得12个单株籽粒蛋白质含量明显超过对照(13．29％)，它们的蛋白含量分别为16．70％，16．52％，17．9l％，19．59％，17．44％，18．56％，18．46％，17．3l％，16．5l％，18．8l％，18．8l％和19．02％，占总数比例的8．33％；(3)籽粒氨基酸含量分析显示在高蛋白变异后代中，随着籽粒蛋白质含量增加的同时，籽粒总氨基酸和各种必需氨基酸含量也有明显提高．经直线相关分析显示，导入大豆总DNA的后代籽粒赖氨酸等6种必需氨基酸含量与总氨基酸含量呈极显著正相关关系。本试验结果充分说明，直接导入大豆总DNA有可能提高大麦籽粒的蛋白质含量及质量。     

添加剂对废水中COD,N和P去除的影响

实验室规模的ＡＮＡＮＯＸ工艺（ＡＮａｅｒｏｂｉｃ－ＡＮｏｘｉｃ－ＯＸｉｃ）用来处理豆制品废水，阐明添加剂对此工艺去除ＣＯＤ、Ｎ和Ｐ能力．研究结果表明：ＴＣＯＤ去除９５．７％，ＳＣＯＤ去除９５．８％，去除９４．２％，去除８９．１％，ＴＫＮ去除８２．４％，ＴＰ去除８７．４％，ＳＰ去除７７．２％，ＳＳ去除９８．０％．比加添加剂之前去除率提高了ＴＣＯＤ９．９％，ＳＣＯＤ１０．３％，ＴＰ４１．４％，ＳＰ３０．８％，ＳＳ８．１％     

黄毛青冈群落的生物量研究

黄毛青冈群落是滇中半湿润常绿阔叶林的另一个群落类型。群落的总生物量为１３５，９０９ｔ／ｈｍ￣２，其中树干占４８．３６％，枝占１５．４４％，叶占４．５１％，根占２７．７６％，凋落量占３．９３％群落的活生物童为１３０．５６９ｔ／ｈｍ￣２，优势种黄毛青冈占５３．９５％，其它栎类占１６．５８％，其它常绿阔叶树占１８２８％，落叶树占７，１５％，灌木占３．８８％，草本植物占０．１６％。     

亚硫酸铵与尿素处理稻草的效果研究

分别用0％、4％、8％的亚硫酸铵和4％尿素处理稻草，水分调至45％，填紧压实，密封保存于贮罐内1个月， 然后用瘤胃尼龙袋法测定稻草有效降解率，分析相关营养指标。试验结果表明：4％和8％亚硫酸铵可显著提高稻草中CP、S及Ash含量，分别提高CP83．80％、174％，S370％、465％，Ash6．13％、2．76％；降低NDF、ADF含量，分别降低NDF5．48％、6．98％，ADF3．94％、14．16％。可显著提高（P＜0．05）稻草中DM、OM有效降解率，其中8％亚硫酸铵分别提高12．57％、13．11％，NDF有效降解率降低（P＜0．01）13．54％。与尿素处理稻草效果相比，亚硫酸铵不及4％尿素处理稻草的效果好。4％尿素可显著提高CP含量113．00％，分别降低NDF、ADF含量0．70％、9．60％；可极显著（P＜0．01）提高DM、OM、NDF有效降解率，分别提高22．80％、21．51％、10．30％。     

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…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

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.