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1.
应用灰色系统理论中关联分析方法和GM(1,1)预测模型,对我国城镇居民消费结构转变过程和发展趋势进行了灰色关联和预测分析,揭示我国城镇居民消费结构的转变规律。  相似文献   

2.
进入21世纪以来,我国社会主义市场经济体制逐渐完善的同时,城镇居民消费结构也发生了较大的变迁,我国城镇居民消费结构实现了优化、升级。本文运用扩展线性支出系统模型(ELES)对我国2000年和2005年城镇居民边际消费倾向和需求收入弹性进行实证研究,得出我国城镇居民已经结束了满足吃、穿着为主的生存型消费需求阶段,逐步向发展型和享受型阶段过渡的消费特征。  相似文献   

3.
王雷 《科技信息》2011,(35):318-319
本研究主要采用文献资料法、数理统计法,逻辑分析法,运用定性和定量相结合分析手段,对我国各个省市的城镇居民消费结构与十运会各个省市成绩积分进行相关分析研究。结果表明:我国城镇居民在消费结构的各个指标上普遍与竞技体育有很大的相关性.说明我国城镇居民的消费结构指标都直接或间接的对十运会成绩积分产生深远的影响。  相似文献   

4.
我国城镇居民消费结构的实证分析与预测   总被引:2,自引:0,他引:2  
根据客观实际的统计资料,对我国城镇居民的消费结构进行了量化分析,揭示了居民消费结构的变化.通过分析,了解我省城镇居民的消费状况和消费水平,为研究我省城镇居民的消费需求及变化提供重要信息.对我省21世纪初城镇居民的消费结构作出预测.  相似文献   

5.
本文运用因子分析法对我国1995年~2005年间城镇居民消费结构的变动进行了实证分析,详细分析了城市居民消费结构的调整及变化趋势。在此基础上,有针对性地提出了增加城镇居民收入、建立健全居民生活风险与保障体系和积极发展旅游业等一系列启动居民消费的对策。  相似文献   

6.
应用SAS软件,对我国2004年城镇居民人均消费支出的统计资料进行对应分析,城镇居民的消费结构中存在的问题提出了一些有益的建议。  相似文献   

7.
田军 《科技信息》2007,(1):127-128
本文采用扩展线性支出系统模型(ELES),对安徽省城镇居民消费结构进行静态分析,在此基础上针对安徽城镇居民现阶段消费结构的特点和变化趋势,同时结合制约消费的影响因素,对于进一步改善安徽省城镇居民消费结构提出了相关对策和建议。  相似文献   

8.
在拉动经济的三驾马车中,消费是最重要的因素之一。在当前经济条件下,扩大内需与刺激消费成为推动我国经济发展的关键因素,而消费结构与扩大内需作为反映居民消费本质的重要概念,是密不可分的。以山西省2005—2011年的数据为基础,在分析山西省城镇居民消费结构现状的基础上,得出应该对山西省城镇居民的消费结构进行合理优化,从而刺激消费来更大程度地扩大内需的结构。然后通过建立一元线性回归模型,分析了居民消费结构对扩大内需的影响。最后,根据对模型的分析,提出了对山西省城镇居民消费结构进行优化的对策建议。  相似文献   

9.
本文依据2005-2010年国家统计局公布的数据,研究并分析了河南省城镇居民的消费结构、消费增长率、平均消费倾向以及边际消费倾向的变化。结果表明河南省城镇居民消费结构不合理,人们的消费主要还停留在食品、衣着上。进而提出了改善河南省城镇居民消费结构的三点对策和建议。  相似文献   

10.
我国城镇居民消费结构发生了很大的变化。制约和影响消费结构的因素是多种多样的,本文将把它们分成两个基本的类别,一类是常规性经济因素,一类是非常规性经济因素。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
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.  相似文献   

15.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

16.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

17.
以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.  相似文献   

18.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

19.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

20.
Quality traits in wheat (Triticum aestirum L.) were studied by quantitative trait locus (QTL) analysis in a recombinant inbred line (RIL) population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross (ChSh). Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.  相似文献   

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