基于完全因素分解模型的中国生产性能源消费量变动的实证研究

本文应用完全因素分解模型对中国1985年到2008年生产性能源消费量的变动进行分解。生产性能源消费指排除生活能源消费的用于各行业生产所投入的能源消费。能源消费量的变动分解为三种效应：由于整体经济的增长带来的经济规模效应、产业结构变动带来的结构效应和技术进步的效率效应。创新之处在于应用因素分解模型进行能源消费量变动的研究。 实证结果表明：24年来，实际GDP带来的经济规模效应是使得能源消费不断上升的最主要因素，效率效应的作用与经济规模效应相反，对于控制能源消费的增长起到了较大并且积极的作用，产业结构的调整对能源消费的控制并没有起到积极的作用。     

广东省工业经济能源消费碳排放的LMDI分析

我国工业经济能源消费是碳排放的主要来源．以广东省为例,从碳排放总量和碳排放强度等指标分析了1990—2011年广东省工业经济能源消费碳排放的现状与特征;用LMDI分解技术,将广东省工业经济能源消费碳排放因素分解为能源结构效应、能源强度效应、经济增长效应和人口规模效应4种因素;定量分析表明：经济增长效应是广东省工业经济能源消费碳排放增长的主导促进因素,人口规模效应为次主导促进因素;能源强度效应是广东省工业经济能源消费碳排放增长的主导抑制因素,能源结构效应是次主导抑制因素．     

中国生产性能源消费量变动的实证研究

应用完全因素分解模型对中国1985年到2008年生产性能源消费量的变动进行分解。能源消费量的变动分解为三种效应:由于整体经济的增长带来的经济规模效应、产业结构变动带来的结构效应和技术进步的效率效应。实证结果表明:24年来,实际GDP带来的经济规模效应是使得能源消费不断上升的最主要因素;效率效应的作用与经济规模效应相反,效率效应对于控制能源消费的增长起到了较大并且积极的作用;产业结构的调整对能源消费的控制并没有起到积极的作用。     

长江经济带能源消费驱动因素及区域差异分析

利用2001—2017年相关数据,对长江经济带、上中下游以及11个省市能源消费开展驱动因素分解,研究结果表明,经济发展、能源消费强度、人口规模和产业结构效应是影响能源消费变化的主要因素,但是驱动因素的作用方向不同,空间差异明显。经济发展是能源消费量增长的主要因素,能源消费强度效应对抑制能源消费效果显著,人口规模效应、产业结构效应拉动作用较弱。未来应从加快产业结构升级、推进节能减排、推行低碳生活方式等方面分区施策,积极应对,减少能源消费。     

中国未来能源需求趋势分析

为给中国能源发展规划提供参考,分析预测了中国未来能源需求状况。采用了国际间比较分析的方法,对不同国家在不同发展阶段人均国民生产总值(GDP)与人均能源消费总量、GDP能源消费强度、人均电力消费、交通用能之间的关系进行分析。结果表明,随着中国未来经济的发展,中国能源消费总量还将大幅度增长;中国未来GDP能源强度还有一定的下降空间,电力消费和油品消费在终端能源中的比例将进一步提高。     

明代中后期奢靡之风对社会发展的影响

明代中后期，消费凸显奢靡之风。尽管它冲击了封建礼制，有利于当时服务业与文化的发展，诱发了鲜活有力的新思想的萌生，但是它奔迟滞了明代中后期的社会发展。消费奢靡诱发了人们的消费欲望，使社会经济畸形发展，导致了重财重利的社会风：气，助长了统治阶级的贪欲，激化了阶级矛盾，是明代灭亡的重要因素之一。     

电子商务时代物流业能源消费研究

基于时间序列模型,研究了中国物流业能源消费问题.研究结果显示：物流业的能源消费增速较快,在承担大量货运业务的同时也消费了大量的能源;物流业能源消费、进出口贸易、物流业发展水平之间存在协整关系,后两者对物流业能源消费的影响较大且显著,从Granger因果关系来看,进出口贸易不是而物流业发展水平才是物流业能源消费的Granger原因;在电子商务时代,内需消费得到了拉动,但也略微拉大了物流业的能源消费.建议各地方政府合理规划交通运输设施建设,努力扩大外贸依存度,改善物流业的能源利用效率.     

我国煤化工技术最新发展研究

煤作为我国的重要的传统能源，在我国当前的能源消费结构中占有重要的地位。尽管近年来我国不断加快实施能源消毒多元化的方针，但是短期来看，煤在我国的能源消费格局中依然占有举足轻重的作用，因此，探讨我国煤化工技术的最新进展，不仅可以有效提高我国煤资源的使用效率，同时对于保护环境、节约资源来说也具有重大的现实意义。     

中国能源消费与经济增长关系的实证研究

为了研究中国能源消费与经济增长之间的关系,通过分析目前中国能源消费及经济增长的现状,发现两者具有一定的相关性;对国内生产总值和能源消费量数据采用平稳性检验,检验表明能源消费和国内生产总值均为二阶差分平稳变量;格兰杰因果检验结果表明GDP是能源消费的的格兰杰原因,而能源消费不是GDP的格兰杰原因,GDP每增加1%,就会增加0.546557%的能源消费;通过构建误差修正模型对中国1990～2017年能源消费与经济增长的关系进行实证分析,发现误差修正机制会将偏离均衡的状态负向调整至均衡。基于对这些结果的分析表明,中国的经济发展定会促进能源消费增长,但是能源消费不一定会促进经济发展。     

河南省新能源发展对策研究

河南省作为我国能源开发和消费大省,能源工业取得了长足发展,能源产业结构不断优化,为全省经济的持续快速的发展提供了有力保障。但是,随着河南省经济的快速发展,能源消费总量及人均能源消费迅猛增长,这种传统的能源消费结构给环境造成了巨大的压力,给河南省经济可持续发展、创造和谐社会设置了很大的障碍。因此要不断开发、利用新能源,使新能源在能源消费与供给比例中不断提高。     

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.     

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.     

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).     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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