缩小差距，加速陕西物流发展的途径探讨

论文分析了陕西物流的供需情况,介绍了陕西物流近年的发展状况、物流发展的差距,分析了产生差距的根本原因,指出了物流发展的后发优势,提出切实可行的赶超方法和途径。     

对中国汽车物流的几点思考

随着我国汽车工业的快速成长和汽车进出口的快速增长,我国的汽车物流业得以迅速发展。同时,中国巨大的汽车物流市场吸引了众多的国外著名的物流企业纷纷抢滩中国。在发展机遇与挑战面前,我们只有看到自身的不足,找到差距,才能在激烈的市场竞争中立足。本文从不同的角度出发分析了中国汽车物流的问题所在,并提出了一些解决问题的方法及发展建议。     

发挥产学研协同优势 创建高校技术创新基地——以构建上海高校智慧物流技术创新与应用示范基地为例

在全球金融危机背景下,中国制造业成本不断上升,作为"第三方利润源泉"的物流在国民经济发展过程中扮演着越来越重要的角色。中国的物流产业与国外发达经济国家相比还存在较大差距,而科技的迅猛发展无疑为中国物流产业的转型升级带来了巨大的机遇,在此背景下,由高校牵头搭建平台,促成政府、企业、高校、研发机构的协调与合作,通过共同努力和具体措施,有助于我国"智慧物流"产业的健康快速发展。     

关于第三方物流理论研究探讨

第三方物流起源于20世纪80年代的欧美国家,第三方物流作为一种专业化的物流组织模式,经过近20年的发展,在欧美已经形成具有一定规模的产业,占据了物流市场的重要地位。与国际上第三方物流的发展相比,中国的第三方物流无论理论研究还是实践探索都存在较大的差距。虽然我国近几年来涌现了不少第三方物流理论研究的论文和专著,第三方物流理论研究逐渐成为当前的热点,但目前尚未形成一个成熟的第三方物流理论体系,本为将对第三方物流理论做一些研究和探讨。     

提升我国第三方物流企业竞争力的战略选择

20世纪90年代中期，第三方物流的概念开始传到我国，它是运输、仓储等基础服务行业的一个重要发展。中国的物流产业尚处于起步阶段，与发达国家相比差距较大。美国、日本等国家使用第三方物流企业的比例已达30％以上；而在中国的工业企业中，把原材料物流交给第三方     

第三方物流——中外企业运作差距

阐述了国内外对第三方物流的不同理解，介绍了国内外第三方物流的发展，找出中外物流运作存在的差距，探讨了提升我国第三方物流管理水平的对策。     

基于顾客满意的第三方物流行业服务质量模型的建立及应用

首先对顾客满意的涵义及服务、服务质量的相关理论进行了阐述,并且对服务质量差距模型进行了分析.然后,结合上述理论的分析,初步构建了基于顾客满意的第三方物流行业服务质量模型.最后以该模型为依据,指出了第三方物流企业需要缩短的差距,为提高第三方物流企业的顾客满意提供了相应的建议.     

浅析高职物流管理专业建设

物流行业具有强大的生存空间和发展潜力。高校培养的物流管理人才数量和质量与社会需求存在差距。高职院校应加强物流管理专业建设,改革课程体系,提高师资队伍素质,创新人才培养模式,适应社会需求的培养出物流管理人才。     

基于专利挖掘的数字物流技术领域国际竞争态势与前沿热点研究

传统物流业向数字物流方向转型已成为必然趋势。深入研究数字物流技术的国际竞争态势和前沿热点,从而为我国产业链供应链数字化转型的前瞻性布局与政策制定提供重要参考。基于incoPat专利数据库,采用Logistic模型、专利计量分析、社会网络分析等方法,从时间发展、主要竞争国家对比、技术分析等3个角度,对数字物流领域技术生命周期、国际竞争态势、前沿热点领域进行分析。研究发现,数字物流技术的前沿热点集中在信息通信、数据图像处理、机械分拣、无线传感等领域;中国、美国、日本、韩国、德国在全球数字物流领域具备较强的竞争优势。其中,中国数字物流技术研究起步较晚,但后发优势较强,近十年专利申请量呈“指数”爆炸式增长。但是,与美国相比,中国在数字物流前沿与核心技术领域依然存在较大差距。建议围绕“数字+物流”关键共性技术领域加强基础研究和产学研协同创新,实现数字物流技术的“软硬”自主可控。     

民族地区绿色物流发展对策研究

要加快我国民族地区发展,应不断探索适合民族地区经济、社会与人口资源环境相协调的开发模式.绿色物流业应该成为民族地区经济发展的优先选择.在分析了民族地区绿色物流的发展现状及差距的基础上,从社会物流和企业物流两个方面提出促进民族地区绿色物流发展的具体对策.     

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.