上海“一网统管”建设探研与思考

推进国家治理体系和治理能力现代化,必须抓好城市治理体系和治理能力现代化。当前,上海正在大力探索超大型城市创新治理的新模式、新路径,全面提升城市综合治理效能。未来,在"一屏观天下,一网管全城"的目标定位下,上海"一网统管"的发展方向如何?文章对此进行了探索性研究和思考。     

可持续发展视域下城市污水治理能力提升策略

我国城市化的快速发展,导致城市人口快速扩张,这就使得城市压力在不断增加。在众多城市压力中城市污水是较为严重的问题,对城市污水的有效治理,有助于提升城市发挥其整体功能,为人们提供更加优质的生活环境。对城市污水治理能力的提升,是实现城市可持续发展的重要手段。该文通过对可持续发展视域下城市污水治理能力提升策略进行研究,以期为城市实现可持续发展提供一些建议。     

浅议城市社会公共服务的问题与发展趋向

在我国城市发展中,社会公共服务在供给、配套体系以及体制和机制等方面存在诸多问题。现代城市的发展需要政府树立服务型政府理念,加强城乡一体化社会公共服务治理,深化行政体制的治理变革,形成多元化的供给平台,不断提高城市社会公共服务供给能力。     

科技创新嵌入城市治理的体制机制

 科技创新是城市发展的新引擎,为城市提供智能化治理工具的同时,也形成了新的治理空白,加剧了治理过程的不确定性。两者间对立统一关系可以从国家战略实施、产业转型升级、城市治理工具更新、科技创新过程与结果等方面加以厘清。在“人本-创新-协同”的逻辑框架下,探讨了强化城市治理就要转变政府职能、突出主体示范引领、强化社会监督,明确各主体在城市治理中的定位与职责,坚持城市社会稳定、安全、人本的基本要求不动摇。分析表明,推进城市治理体系和治理能力现代化,需要就城市治理目标的实现路径、智能化工具的使用边界、城市公共服务的供给以及治理过程的动态监督等重点问题提出具体要求,重视法治德治的结合,完善和创新城市治理体制机制。     

城市社区体育治理体系现代化的逻辑思辨与推进

推进城市社区体育治理体系现代化是我国群众体育发展与改革的必然要求,在城市社区体育治理现代化过程中仍面临治理制度不完善、治理主体权责不清晰、治理体系法制不健全、治理手段落后等现实困境。提出健全社区体育治理制度、激发治理内在驱动力、优化治理能力架构、采取多元共治、健全法制体系、引入信息智能技术,提升现代化发展进程。     

政府责任在城市生活垃圾分类处理上的缺位与归位

在城市生活垃圾分类处理问题上政府负有政治责任、行政责任和法律责任。目前,各种原因造成各级城市在生活垃圾分类处理问题上存在着政府责任缺位。在中央不断推进国家治理体系和治理能力现代化的要求下,政府责任必须在城市生活垃圾分类处理问题上归位,以推动此项工作的顺利进行。     

合肥市城市综合转型发展路径研究

为适应经济发展新常态,城市需要从发展模式、城市功能、空间结构、生态环境、公共服务、城市治理等方面进行全方位的转型发展。本文以合肥市为例,在建设宜居宜业宜游幸福城市的视角下,从完善城市功能,优化生态环境,提升公共服务,推进社会治理四方面提出城市综合转型发展的路径。     

智慧城市视角下的政府治理改革与创新

正在"互联网+"的背景下,以大数据、云计算、智慧城市等为代表的新一代信息改革浪潮,给传统的政府治理模式带来了强烈冲击,也给政府治理改革提出了新要求。探讨智慧城市视角下政府治理的改革与创新问题,就有必要追问:是什么阻碍了政府治理改革与创新步伐、使之难以适应智慧城市发展的需要?如何才能顺应智慧城市的发展需要、实现政府治理改革与创新的战略目标?智慧城市与政府治理创新智慧城市的内涵与特征     

城市低碳经济发展路径的系统动力学模拟

面临全球变暖和环境污染问题,发展低碳经济成为城市可持续发展的必由之路.本文从经济、能源、环境三方面,对城市低碳经济发展进行系统动力学建模,并以吉林省四平市为例进行仿真模拟,考虑在现有因素影响下的经济发展模式,基于已有的低碳经济综合评价指标,从产业结构、能源消耗以及经济发展等方面,研究城市从高碳经济逐渐步入中碳经济,并向低碳经济发展的可行路径.针对具体城市,提出调整产业结构,提高污染治理能力,从源头上控制大气污染,是城市可持续发展的有效对策.     

城市智慧社区的发展路径研究

城市智慧社区是探索社区治理的新模式,在社区治理视角下分析城市智慧社区技术、制度与主体三个主要要素及其联系逻辑,并总结实践过程中城市智慧社区建设存在的技术与社区治理融合度不高、规范和标准支撑保障不足、多元主体协同度不畅等问题,提出了将现代科学技术与城市智慧社区治理逻辑融合发展、增强智慧社区的制度性供给和促进多元主体的有效参与三个路径,以此促进社区治理的现代化发展。     

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.