杂交抗虫棉“精、稀、简”栽培技术

杂交抗虫棉“精、稀、简”栽培技术，将杂交抗虫棉与“精、稀、简”栽培技术配合使用，结合杂交抗虫棉抗虫性强，单株产量潜力大等优势，有效发挥杂交抗虫棉的增产潜力，提高综合种植效益。该技术可减少用种量50％以上，减少用工量8％，增产量提高8-15％，种植效益提高30％。     

原子荧光光谱法测定汞、铅、锑的研究

建立了巯基葡聚糖凝胶分离富集-氢化物发生原子荧光法，用于测定汞、铅、锑的含量．采用微波消解样品，以巯基葡聚糖凝胶在不同的pH条件下分离富集汞、铅、锑，再以不同浓度的HCl洗脱后氢化物发生原子荧光光谱法测定含量．汞、铅、锑的线性检测范围分别为0～80，0～150，0～200／μg／L，方法检出限分别为0．05，0．30，0．25μg／L，样品加标回收率汞为99．0％～105．5％、铅为98．0％～101．5％、锑为99．8％～100．6％．本方法具有基体干扰小，灵敏度高，检出限低，线性范围宽的特点，应用于实际样品的测定，结果满意．     

高产夏玉米氮、磷、钾吸收、积累与分配态势的研究

本文研究了高产夏玉米器官中氮、磷、钾积累量和累进强度，以及在各部位中的分配与转移情况。结果表明，每公顷生产１１６１３ｋｇ籽粒，三要素的最高积累量氮为２３０．２５ｋｇ，磷为１０４．２５ｋｇ，钾为２１２．７０ｋｇ，生产１００ｋｇ籽粒需吸收氮、磷、钾分别为１．９８３，０．８９８，１．８３２ｋｇ，三者比例为２．２１：１：２．０４．成熟时，籽粒中氮、磷、钾分配比率分别为５８．９１％，８２．４２％，１２．５４％，氮、磷、钾的最高累进速度分别为４．８６，２．４９，７．６２ｋｇ／ｈｍ２·ｄ．籽粒中６８．７１％的氮和３８．７８％的磷来自于地上部其它器官。     

哈素海、岱海、黄旗海湿地鸟类的调查研究

在哈素海、岱海、黄旗海共观察记录到113种鸟类，隶属于16目35科71属．其中候鸟97种，占该3区鸟类总数的85．8％，留鸟16种，占该3区鸟类总数的14．2％．候鸟中夏候鸟56种，旅鸟41种．水鸟共有65种，占鸟类总数的57．5％．72种繁殖鸟中古北种57种，东洋种7种，广布种8种，分别占繁殖鸟类总数的79．2％、9．7％、11．1％．鸟类组成明显以古北种为主．3个湿地环境中国家重点保护鸟类有15种．     

黑龙江高校大学生性观念、性行为、性取向的调查分析报告

当前高校学生的性意识开放，公开化程度较高。21.2％的人对“性”感兴趣，有59.7％的人认为“性”不需要回避，14.6％的人表示对“性”无兴趣，表现出厌恶“性”的只占到3.1％。40.1%认为上大学谈恋爱正常,55％的人认为恋爱对学习没影响，18.9％认为恋爱影响学习；30.1％的人认为恋爱促进学习，31.4%认为恋爱是一种人生体验；14.5%认为是寂寞无聊；有占12.6认为随缘；而将恋爱作为结婚对现象仅占3.52%。在对婚姻最重要性”的调查中，49.6认为“爱情”重要，48.5％认为“责任”重要，4.98％认为志同道合，1.3％认为满足“性”。在调查中，24.5％认为“试婚”对婚姻有益。43.5％人对“试婚”选择模糊态度，不同意为32.4％。婚前性行为的调查中，11.70％不赞成，54.3％不支持也不赞成，33.6％赞成感情基础上的婚前性行为，5.3％认为满足生理需要，与结婚及感情无关，没感情也会发生性行为。44.8%认为婚前性行可以接受；48.1%认为双方愿意可以接受；10.2%认为应该谨慎。     

冷原子吸收与原子荧光法测定 As、Sb、Bi、Hg 的方法研究

样品经王水分解后，调制成１０％的ＨＣｌ介质。移至自制的Ｈｇ发生器中，加入ＳｎＯ２还原，以空气作载体，将Ｈｇ原子蒸气载入测Ｈｇ仪吸收管，冷原子吸收测Ｈｇ。便可实现一次溶矿与原子荧光连测样品中的微量Ａｓ、Ｓｂ、Ｂｉ、Ｈｇ。检出下限分别为：Ａｓ０．１８μｇ／ｇ；Ｓｂ０．０６７μｇ／ｇ；Ｂｉ０．０８７μｇ／ｇ；Ｈｇ０．０１１μｇ／ｇ。ＲＳＤ％分别为Ａｓ１１％；Ｓｂ６．３％Ｂｉ７．１％；Ｈｇ１．２％。     

含朱砂中成药中锌、镉、钴、镍的薄层扫描色谱测定

应用金属螯合物-薄层扫描色谱技术，研究建立了中药中锌、镉、钴、镍测定的新方法．本法操作简单，灵敏度高．应用于含朱砂中成药牛黄清心片、天王补心九中锌、镉、钴、镍的可溶态、有机态、无机态含量及总量的测定．与原子吸收光谱法测定结果相吻合．平均回收率分别为98．43％、103．5％、104．5％、98，65．     

乙草胺、草甘膦苗圃除草试验

化学除草是高效、省工、经济的除草方法。本试验采用两种除草剂在苗圃上试验，乙草胺除草效果为73．2-90．1％，草甘膦的除草效果为74．8％-87．7％，除草效果明显，值得在生产上进一步推广使用。     

2、3、5──三氯苯甲酸的合成

植物生产调节剂２、３、５－三氯苯甲酸可由六氯合苯经三步反应合成．第一步制 １、２、４－三氯苯，得率约８０％。第二步制２、３、５－三氯－ω－三氯甲基苯 得率约５０％。第三步水解制２、３、５──三氯苯甲酸，在最佳条件下水解率可达９０％。     

和谐、和睦与发展

一、21世纪头20年是中国发展的关键时期 1978年，中国开始实行邓小平先生倡导的改革开放新政策。1979到2004年的26年间，中国经济连续保持9.4％的年平均增长速度，居民消费水平年均增长7％，进出口贸易年均递增16，7％。到2004年末，国内生产总值达到了1．65万亿美元，外汇储备6000多亿美元，实际利用外商直接投资累计超过6600多亿美元。     

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.