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射频识别RFID(Radio Frequency Identification),即指应用射频识别信号对目标物进行识别,是非接触式自动识别技术的一种。它通过射频信号自动识别目标对象并获取相关数据。识别工作无须人工干预,可工作于各种恶劣环境。 相似文献
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传统的防伪技术不具备惟一性和独占性,易复制,起不到真正防伪的作用。目前,国际防伪领域逐渐兴起了一股利用电子技术防伪的潮流,射频标签引起了防伪界的广泛关注。长期以来,假冒伪劣商品不仅严重影响着国家的经济发展,还危及着企业和消费者的 相似文献
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传统防伪理论具有很大的局限性
①企图自己制造一种防伪特征,却指望造假者仿造不了。但凡是人工制造的东西,人就一定能再次仿制成功,这只是一个时间问题和成本问题。而且,造假者的成本一定会低于生产者。因为生产者承担了全部开发成本,而造假者只需直接克隆。 相似文献
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对射频识别(BFID)技术进行了深入的分析,揭示了该技术的作用原理,阐明了它在防伪工作中的作用。RFID在证件和防伪技术方面的应用将越来越多,最终形成RFID产业的重要领域。 相似文献
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通过对现行人民币的防伪技术分析,基于国家十二五规划对物联网发展的要求,结合RFID技术的特点,浅析RFID在人民币的防伪技术中的应用,探索人民币的防伪新技术,为国民经济持续稳定发展提供有力技术保障。 相似文献
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吴迪 《中国新技术新产品》2012,(2):244
本文首先介绍了RFID(无线射频识别)系统的组成,RFID技术较之条形码技术具有的优越性,适合未来高校图书馆的管理和服务发展。在此基础上,阐述了RFID技术在高校图书馆的应用所带来的巨大的优势,最后,分析了图书馆在应用RFID的过程中面临的问题,并展望了RFID在图书馆的应用前景。 相似文献
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RFID是一种非接触识别技术,具有广阔的应用前景。针对有线门禁系统布线繁琐的缺点,设计了一种基于无线传输的门禁系统。系统采用RFID技术,对用户刷卡信息和密码进行认证。门禁控制器通过无线数据传输模块连接到管理计算机,对用户信息和卡信息进行文件和数据库管理。实际应用结果表明,系统运行稳定,实时性好。 相似文献
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ⅠDevelopment of RFID
RFID (Radio Frequency Identification) is a new auto-identification technology developed in the 1990s. 相似文献
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《Advanced Powder Technology》1999,10(4):323-352
It is about 10 years ago since the author of this invited paper started to apply percolation theory in the field of (pharmaceutical) powder technology. Thus the invited paper summarizes 10 years of experience in the application of percolation theory. The goal of the paper is to share this experience and to stimulate a broader use of percolation theory. The application of percolation theory is a fast growing field in very different areas of science and technology. However, percolation theory has not yet reached as broad an application in the field of powder technology as it should deserve. For this purpose, within this article a strong emphasis is put on a condensed but still rigorous introduction to the concepts of percolation theory to facilitate a broader application in powder technology. In this respect it is important to get a deeper knowledge and understanding of the basic power law of percolation theory to describe a desired property X = S* (p - pc)q, where S* is the scaling factor, p is the (bond or site) occupation probability, pc is the percolation threshold and q is the critical exponent, close to the percolation threshold. A prerequisite is a geometrical or a physical phase transition at pc. An explicit statement about the nature of the percolation threshold phenomenon should be part of the system and model analyzed. The question of the universal character of a critical exponent q, which depends only on the dimensionality d of a system, plays an important role as well as the concept of percolation threshold pc, which reflects the microstructure of a system. Different examples illustrate the successful application of percolation theory in (pharmaceutical) powder technology, covering important unit operations such as the compression of powder and the dissolution of an active substance from a binary powder compact, etc. Percolation theory provides key tools for a more rational design of pharmaceutical dosage forms and for the development of robust formulations. Thus the development time can be speeded up and time to market can be reduced. The examples presented show the range of application and possible limitations of percolation theory. An outlook is given for a broader application as well as for a possible fruitful application of percolation theory in nanoscience and nanotechnology. 相似文献
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In price-sensitive markets, price promotions coupled with an appropriate item replenishment strategy can be effective in controlling
the total costs of servicing the market. In supply chains that handle perishable products, inventory management is already
a complex problem and the management of products in a dynamic-pricing environment is even more challenging. Monitoring and
control of time-sensitive products can be facilitated by the application of radio frequency identification (RFID) technology,
which enables non-contact, real-time data collection and efficient interfacing with the management control system in the supply
chain. This paper describes an integrated framework for inventory management and pricing in a discrete time (periodic review
and ordering) framework, and describes an efficient algorithm, including a new approximation, for the related optimization
problem. We then propose a suitable architecture for the application of RFID technology in this context, to realize the potential
benefits. 相似文献
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川东北超深高酸性气田勘探开发工程技术 总被引:3,自引:0,他引:3
川东北地区高含H2S,CO2及复杂的地质和环境条件给勘探开发工程带来了世界级难题。通过引进攻关和实践,逐步形成了适合超深高酸性气田勘探开发的钻井、测试、生产完井等配套技术,实现了国内首个超深高酸整装普光气田的安全投产运行。笔者对川东北地区超深高酸性气田勘探开发工程技术进行了简要梳理,为国内同类气田勘探开发提供参考,并对超深高酸性气田的勘探开发工程技术发展提出了建议。 相似文献
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超颖材料的奇异特性和近几年的研究进展使该材料成为人们研究的重点,其发展前景引起了学术界,产业界,尤其是军方的无限遐想。针对超颖材料在隐身方面的应用对其基本特性和实验成果进行了总结,并对该材料在隐身和其它方面的应用前景进行了描述。 相似文献
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The inception of radioisotope and its application in China are introduced. The research,development, production, application progress and the future development prospect of radioisotope and its products are described. 相似文献
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《低温学》2006,46(2-3):105-110
An energy efficient cryogenic transfer line with magnetic suspension has been prototyped and cryogenically tested. The prototype transfer line exhibits cryogen saving potential of 30–35% in its suspension state as compared to its solid support state. Key technologies developed include novel magnetic levitation using multiple-pole high temperature superconductor (HTS) and rare earth permanent-magnet (PM) elements and a smart cryogenic actuator as the warm support structure. These technologies have vast applications in extremely low thermal leak cryogenic storage/delivery containers, superconducting magnetic bearings, smart thermal switches, etc. This paper reviews the development work and discusses future applications of established technologies. 相似文献
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《Materials Science & Technology》2013,29(9-10):857-863
AbstractDisc brake manufacturing for railway vehicles has become a popular fieldfor assessing the possibilities of MMC application during recent years. The substitution of conventional ferrous materials by light alloys allows for a significant reduction in the rotating masses in a vehicle bogie which leads to a decrease in energy consumption. The use of conventional aluminium casting alloys is not suitable to solve this. Castable MMC materials are a highly promising alternative. Under economic pressure MMC solutions are required to be not only mechanically superior but also cost effective, and due to the low ductility of these particle reinforced materials there is a needfor new concepts. Locally optimised discs consist of a ductile carrier (body) with wear resistant rubbing surfaces. This led to several prototype disc brakes being manufactured by various casting processes. This paper gives an overview of the state of the art and newly developed manufacturing routes and materials, metallic and non-metallic, for rail disc brake applications. 相似文献