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21.
简述web服务的关键技术以及其发展的过程,并对一些关键技术进行阐述,web服务是有自己独特的体系,拥有自己的一套架构,并且在这套架构上,web服务拥有自己的核心技术,当单个的web服务难以满足需求的时候,这时候web服务组合就出现了,它能够很好的解决单个web所不能解决的问题,这个很好的满足了现代社会的需求,最后提出web服务技术的未来,其中重点是说明web服务的核心技术。随着网络的兴起,web服务技术被广泛应用于大数据的海洋抓取,比如代购网站中,就需要用到数据的海洋抓取和存储。 相似文献
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Land exhibits diverse functions under the combined influence of natural and human forces. A production–living–ecology functional classification system was constructed by integrating land, ecosystem, and landscape functions. The land functional value was calculated by systematically integrating ecosystem service value assessments. The primary and secondary functions, as well as combinations of different land‐use types, were determined using vertical and horizontal comparison methods. The production–living–ecology ranges were then delineated in Puge County, which is a typical mountain county in China. The production–living–ecology functions identified were well connected with the current land‐use types. The “production–living–ecology” space in Puge County showed obvious multifunctionality and agglomeration. The function identification system proposed in this paper integrated multiple methods, overcame the difficulty of direct quantitative identification of land functions. The methods used to map and quantify land function will enhance our ability to understand and model land system changes and adequately inform policies and planning. Summary for Managers
- The function valuation method constructed in this paper could be used to reflect the multifunctionality and importance of land use and provide guidance and a quantitative basis for regional development planning.
- The spatial classification results provided in this paper could offer a valuable reference for the land management department to scientifically formulate land use planning.
- Under the goal of creating a group‐type urban development pattern and constructing an ecological protection pattern in Puge County, the hotspot analysis results of this paper can provide decision‐making tools and alternative spatial plans.
24.
《Journal of Location Based Services》2013,7(2):112-132
The objective of this study was to assess the response to location-based services (LBS) by three key demographic groups within the United Kingdom. This study took the form of a survey of relevant demographics, attitudes and consumer behaviour undertaken via a web-based survey. Results are based on over 1200 respondents, filtered and segmented into three demographic groups who are typically early adopters of new technology. There were positive attitudes towards a range of LBS, with the major exception being location-based advertising. There were mixed views towards location-based gaming and safety camera information. There were low levels of awareness of many services. The levels of use were typically under 20% for all types of LBS. 相似文献
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为满足客户日新月异的技术及运营需求,对车联网服务能力进行完善,发掘4G在新一代车联网应用中牵引作用,面向前装市场推出以云管端一体化为核心的和车连产品,引导车联网行业新变革. 相似文献
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针对现场采集数据实时远程监控的要求,根据LabVIEW强大的功能模块和Arduino灵活易用的开发特点,提出以Arduino为控制器,采用Arduino软件与LabVIEW软件交互编程的设计思想。为解决LabVIEW在本地服务器Web发布的局限性,同时简化系统的硬件设计,增加使用的灵活性,使用云计算作为服务器,设计实现了一种基于LabVIEW和Arduino的无线串口采控和实时同步Web发布的系统。测试结果表明,该系统界面友好,运行可靠,可扩展性很强,可以在整个互联网上通过网页建立Web请求。 相似文献
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José Manuel Cordero Edurne Alonso-Morán Roberto Nuño-Solinis Juan F. Orueta Regina Sauto Arce 《European Journal of Operational Research》2015
This paper uses a fully nonparametric approach to estimate efficiency measures for primary care units incorporating the effect of (exogenous) environmental factors. This methodology allows us to account for different types of variables (continuous and discrete) describing the main characteristics of patients served by those providers. In addition, we use an extension of this nonparametric approach to deal with the presence of undesirable outputs in data, represented by the rates of hospitalization for ambulatory care sensitive condition (ACSC). The empirical results show that all the exogenous variables considered have a significant and negative effect on efficiency estimates. 相似文献
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With the rapid development of the Internet of Things (IoT), Location-Based Services (LBS) are becoming more and more popular. However, for the users being served, how to protect their location privacy has become a growing concern. This has led to great difficulty in establishing trust between the users and the service providers, hindering the development of LBS for more comprehensive functions. In this paper, we first establish a strong identity verification mechanism to ensure the authentication security of the system and then design a new location privacy protection mechanism based on the privacy proximity test problem. This mechanism not only guarantees the confidentiality of the user’s information during the subsequent information interaction and dynamic data transmission, but also meets the service provider’s requirements for related data. 相似文献
30.
王源 《中国电子科学研究院学报》2006,1(3):219-222
服务计算是一种新的分布式计算模式。在服务计算中,跨组织广域分布的资源共享对安全提出了极大的挑战,特别是资源的动态变化及应用安全需求的动态变化对安全提出的挑战。本文给出了服务计算的安全模型,分析了这种应用逻辑与安全策略分离的基于信任域的安全模型的主要思想和优点。该模型可为信息栅格安全构建提供一种有效的解决思路。 相似文献