AHP层次分析法在行政决策中的应用

公共行政决策是公共行政管理的中心环节.由于公共行政决策的决策标准具有复杂性、模糊性和难以量化的特点,这让行政决策者常常在几个备择方案中难以取舍,最后行政决策过程就变成了决策主体非理性的,经验型的,举手或者民主投票的意见集中过程.这显然与决策的科学性要求相悖,也容易造成决策的失误.本文将层次分析法引入公共行政决策领域中,通过分析,我们认为层次分析法定量与定性相结合分析问题的特点,可以有效提高行政决策的质量和效率.     

信息技术对公共行政的几点影响

信息化是当代社会的一大趋势，它正推动着公共行政现代化的进程。信息技术的发展对诸如行政人员、行政决策、行政组织、行政方法、行政公文、政府管理模式等公共行政要素和过程产生着深远的影响。     

信息技术对公共行政的影响

社会信息化是当代社会的一种大趋势，它正推动着公共行政现代化的进程。阐述了信息技术的发展对行政人员、行政决策、行政组织、行政方法、政府管理模式等诸多公共行政要素和过程产生的影响。     

网上支付的使用决策分析

本文简要介绍了网上支付的使用情况，并把影响消费者选择网上支付和离线支付的因素归结为金融成本、信用成本、环境成本、技术成本4类，并运用层次分析法解决用户在选择网上支付与离线支付的决策过程中各类影响因素的相互作用，得出决策的层次分析法的数学模型．     

数学建模的层次分析法

阐述了数学建模层次分析法的基本思想、方法和核心问题，运用层次分析法建立数学模型的一般步骤和计算方法，并通过实例分析，说明了层次分析法在决策中的有效性．     

基于层次分析法的汽车系统分析

层次分析法是一种新的系统分析方法，也是一种结合定量和定性分析的方法。它不仅可以于工程技术、经济管理及社会活动中的决策过程，而且可以进行分析、预报，或为控制提供依据。本文介绍层次分析法的原理及分析过程的基本步骤。基于层次分析法进行汽车系统分析，优选家庭轿车车型。结果表明层次分析法所得结果与实际相符。     

层次分析法在煤炭建设项目投资决策中的应用

研究了层次分析法在煤炭建设项目决策中的应用,解决了层次分析法在多目标决策中难以建立判断矩阵的问题,扩展了层次分析法的应用范围,对煤炭建设项目多方案择优提供了一种可供参考的方法。     

基于AHP的一种新方法

在层次分析法的基础上，结合集对理论，提出了一种新的层次分析方法，该方法与传统的层次分析法相比较，是一种更有效、更实用的决策方法．     

基于层次分析法的汽车系统分析

层次分析法是一种新的系统分析方法 ,也是一种结合定量和定性分析的方法 它不仅可以应用于工程技术、经济管理及社会活动中的决策过程 ,而且可以进行分析、预报 ,或为控制提供依据 本文介绍层次分析法的原理及分析过程的基本步骤 基于层次分析法进行汽车系统分析 ,优选家庭轿车车型 结果表明层次分析法所得结果与实际相符     

探析公共行政决策失误的根源与防范对策

公共行政决策失误是一个普遍的现象.造成公共行政决策失误的原因有主观方面的,亦有客观方面的.在深入探析主、客观因素的基础上,有针对性地提出防范控制公共行政决策失误的对策:培训提高公共行政决策人员的道德伦理和素质能力;强化决策失误责任追究制度;创新公共行政决策的辅助机制一一建立决策失误的评估机制、辨析决策失误的影响因素、实施多元参与的决策模式、健全行政决策的监督体系.     

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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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。     

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.     

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