苏州住宅价格泡沫问题解析

本文主要围绕苏州住宅价格是否存在泡沫问题展开,通过指示指标法对苏州住宅市场泡沫进行测度,采用房价收入比、房价物价指数比、房价增长率与GDP增长率这几项指标,结论表明已出现了泡沫,应及时采取应对措施避免泡沫破灭而引发危害。     

浅析中国的房地产泡沫

本文试图探索目前中国房地产价格飞涨的原因,并从目前收入与房价比以及房屋空置率两个方面进行分析。研究结果表明目前我国房地产存在泡沫,应该以日本为鉴,对房地产泡沫破裂对经济影响进行预防。     

关于建设工程价款优先受偿权的几点思考

房地产繁荣背后却无法掩盖一个事实,那就是中国房地产业泡沫已经形成。无论是房屋租售比,还是房价收入比,中国各大城市的这些指标均远高于国际公认的合理水平。这两年房价的疯涨将中国房地产的泡沫被越吹越大。是泡沫总会破裂,只是时间和方式的问题。作为房地产链条中的施工企业届时受到影响将不会低于房地产开发企业本身。因此施工企业特别是国有大型施工企业应该未雨绸缪,制定防范房地产泡沫的风险预警机制,充分运用《中华人民共和国合同》第386条的规定,维护自身合法权益,确保经济利益不受损害。     

下半年楼市或进入新一轮调整期

正上半年我国楼市回顾:房价、地价齐涨,金融泡沫初现整体回暖、房价普涨、"地王"频现、去库存初步见效……已从"黄金时代"进入"白银时代"的中国楼市,在2016年上半年却表现抢眼。但过快的增长势头,也引起了人们对金融泡沫的隐忧。同比增幅位居各行业之首,对经济增长做出重要贡献7与15日,国家统计局公布上半年中国经济数据,房地产市场"期中考"部分成绩单出炉。商品房成交"量价齐升"、房地产投资稳步回暖、土地成交量     

从房地产政策看我国房地产发展趋势

近几年我国的房地产业发展的速度很快,这一行业是我国的重要部门,是关系到人们生活的重要方面。而且房地产的发展直接关系到经济的发展状况,对拉动消费水平,刺激经济的增长有重要的作用。发展房地产业还对解决就业问题也起到了巨大的作用。但是我们也可以看到,这些年来,我国的房价急剧的上升,房价与日俱增,就连一二线城市的房价都涨的惊人。房地产的泡沫极大。这种状况令人担忧。那么接下来我们就通过对房产政策的分析,来对我国房地产的发展趋势进行探讨。     

我国房地产市场平稳发展初探

近十年来,我国房地产市场不断升温.2007年来,部分城市房价飞涨.高房价使资产泡沫不断积累、扩大、破灭,像一颗＂定时炸弹＂随时会冲击我国的经济和产生负面影响.高房价的原因是多方面的,有房地产开发商、商业银行的原因,也有地方政府卖地和少数官员＂寻租＂等因素.要采取有效措施,遏制房价暴涨.要在政府主导解决好城市居民保障性住房;改革现行土地出让制度;减少地方政府对土地财政的依赖;运用银行信贷、财政税收调节房价;尽快建立二手房的评估制度;政府部门加强对房地产市场整顿、监管和查处力度;央企必须退出房地产业等六个方面入手,全面综合性解决问题.推动我国经济持续平衡快速健康发展.     

中国房地产市场的财富加速器模型与调控原则

通过文献回顾与分析,笔者提出并系统阐释了我国房地产市场存在的"财富加速器模型",任何投入房地产市场者,财富均受到"加速效应"的推动而迅速增长,而场外观望者,财富相对或绝对下降.财富加速器的推动力由国民经济的快速增长、城乡二元结构、财富异化和房地产市场高杠杆率合成.财富加速器模型比较理想完整地解释了我国房地产市场诸多现象.我国房地产市场调控必须采取切实弱化"财富加速器机制",使房地产由"财富性"回归"居住性",降低投资、投机需求,平抑房价,削弱房地产泡沫成分,以求房地产和国民经济的持续健康发展.     

未雨绸缪,防止房产市场的次贷危机——次贷危机对我国房地产市场的启示

美国次贷危机引起全球性的金融危机,近期进一步对世界经济产生深远的负面影响。我国经济已经成为世界的一部分,但由于房地产属于非贸易品,因此房产市场受到的影响相对的较小,而且是间接的。当前由于前期房产价格持续急速上扬、贷款快速增长,市场"泡沫"不容忽视,尽管国家有关部门联手"治市",但效果不尽理想。造成房价畸高成为普通百姓面前残酷的现实。其实,残酷的不是房价,比房价更残     

正确认识当前房地产形势 促进房地产市场平稳发展

2009年上半年,受鼓励住房消费政策刺激、国民经济形势好转、货币政策宽松等因素的影响,房地产市场呈现了由回暖到活跃的局面,房地产市场量价齐升,总体上反映出房地产市场已经回升。但一些大城市房价上涨较快,泡沫开始显现。预计下半年在国内经济企稳回升、国际经济正在筑底的环境下,房地产投资将继续快速回升,价格仍将上行,销售保持平稳。政策应正确处理防泡沫和保增长的关系,短期与近中期政策需一并考虑,促进房地产市场平稳发展。     

论房地产暴利的根源与治理

从我国商品房的利润来源分析入手,对我国商品房暴利形成的原因进行分析,认为是地方政府、商业银行与房地产开发结成的利益联盟的利益追求导致了房价狂涨。房地产暴利对我国社会政治、经济造成了严重危害,带来贫富分化加剧、社会矛盾加深、土地资源浪费、政府公信力下降等一系列问题。投资房价飙升以及房地产的暴利成为我国经济中的奇特现象,引起了公众关注和政府重视。     

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.     

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…     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

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