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1.
介绍了数字资源公共服务平台功能设计,提出了数字资源公共服务平台的系统技术指标,分析了数字资源公共服务平台的系统构成和各个子系统的功能要求,并对一些重要指标进行了论述。  相似文献   

2.
本文针对传统软件开发模式设计的数字校园系统普遍存在的一些问题,提出采用面向服务架构(SOA)技术设计数字校园信息平台的新构想,在分析了SOA体系结构和关键技术的基础上,形成了基于SOA的搭建式数字校园信息平台开发思想,并在此思想指导下,对数字校园信息平台总体架构和功能模块进行了设计。  相似文献   

3.
数字校园应用支撑平台的建设是高校信息化、现代化的表现。文章从高校数字化校园建设的角度提出了数字校园应用系统和支撑平台建设意义与整体建设思路,并对统一数据集成平台、统一应用集成平台、统一服务提供平台、统一资源管理平台、统一业务处理平台以及统一系统管理平台等六个支撑平台设计进行了较为详细的阐述,为高校数字校园建设提供了整体技术参考。  相似文献   

4.
赵筱斌 《科技信息》2012,(29):20-21
项目以浙江建设职业技术学院校园三维虚拟场景为研究对象,研究基于VR-Platform虚拟现实平台对三维数字虚拟校园漫游项目进行设计与开发的方案与实践过程。特别对实现过程中的关键技术进行具体研究,以保证实现过程简便易行的同时,力求三维数字校园系统仿真度高、效率高、成本低,便于在数字校园及今后的数字城市等的建设中进一步推广应用。  相似文献   

5.
针对高校数字校园建设过程中存在的问题,提出了一种基于微服务架构的数字校园平台改造及持续集成框架,并以云南师范大学为例进行数字校园平台改造及集成分析,探讨通过微服务架构改造实现数字校园在数据层、业务流层和展示层的整合和封装.  相似文献   

6.
数字校园三维仿真系统设计与应用   总被引:3,自引:0,他引:3  
以福建师范大学旗山校区为实例,建立基于IMAGIS平台的数字校园三维仿真系统,以仿真的模型再现校区空间结构,实现数字校园的空间信息三维可视化和空间地理信息分析查询,为校园管理和服务提供一个科学简便、形象直观的可视化人机交互平台.通过数字校园系统,利用宽带流和金字塔技术在WEB与Google Earth上实现校园交互漫游查询,建立校园谷歌,增强数字校园信息现代化管理以提高学校的知名度和影响力.  相似文献   

7.
上海市多媒体公共服务平台(以下简称"多媒体平台")是由上海市科委和长宁区政府于2004年共同出资组建的,于2005年1月1日开始正式对外提供服务.多媒体平台是为服务上海市数字媒体产业的发展而建设的公共服务支撑平台,同时也是上海研发公共服务平台多媒体领域的专业服务机构.  相似文献   

8.
校园GIS平台--基础地理信息数据库的建立   总被引:4,自引:0,他引:4  
“数字校园”(校园GIS)是各大学期望建立的校务处理和辅助决策平台,而“数字校园”的基础是校园基础地理信息数据库.利用GIS软件,阐述了建立校园基础地理信息数据库的技术、过程和内容,完成了建立校园基础地理信息数据库的初步研究,并提出了建设校园GIS的目标。  相似文献   

9.
以数字校园数据集中为背景,对数字校园建设中存在的"信息孤岛"问题进行了分析,并针对这一问题,介绍了如何利用集中的数据交换思路来解决这一问题;并以统一数据交换模式在数字校园中的应用为例介绍了西安交通大学统一数据交换平台的核心设计与实现.  相似文献   

10.
依托校园一卡通构建网上交易系统   总被引:2,自引:0,他引:2  
介绍了一卡通在数字化校园中的应用,同时结合网上交易的概念和方法,提出了利用一卡通电子钱包实现校园网环境中的网上交易系统,并给出了一个具体的应用实例,它可以作为数字化校园公共服务的支付平台,具有很好的推广价值.  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.
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   

13.
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   

14.
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   

15.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

16.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

17.
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.  相似文献   

18.
In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.  相似文献   

19.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

20.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

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