7,466 research outputs found

    A proposed NFC payment application

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    This article has been made available through the Brunel Open Access Publishing Fund. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Near Field Communication (NFC) technology is based on a short range radio communication channel which enables users to exchange data between devices. With NFC technology, mobile services establish a contactless transaction system to make the payment methods easier for people. Although NFC mobile services have great potential for growth, they have raised several issues which have concerned the researches and prevented the adoption of this technology within societies. Reorganizing and describing what is required for the success of this technology have motivated us to extend the current NFC ecosystem models to accelerate the development of this business area. In this paper, we introduce a new NFC payment application, which is based on our previous “NFC Cloud Wallet” model [1] to demonstrate a reliable structure of NFC ecosystem. We also describe the step by step execution of the proposed protocol in order to carefully analyse the payment application and our main focus will be on the Mobile Network Operator (MNO) as the main player within the ecosystem

    A relapsing inflammatory syndrome and HHV-8

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    超声波与冲击波促进骨折愈合的基础研究与临床应用

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    2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    Revisit of the Cardiac Inward Rectifier Potassium Current IK1

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    Inward rectifier potassium currents are present in different types of cells. In the heart, the inward rectifier potassium current IK1 plays a crucial role in maintaining cardiac resting membrane potential and excitability. It is generally believed that the strong inward rectification of cardiac IK1 channels makes it conduct substantial current near the resting potential but carry little or no current at depolarized potentials. However, recent studies in native cardiac myocytes and HEK 293 cell line stably expressing human Kir2.1 gene have demonstrated that a significant transient outward current carried by IK1 channels is activated by the upstroke of action potential. This review will revisit cardiac IK1 channels, especially the previously-ignored transient outward component of IK1 carried by Kir2.1 channels.published_or_final_versio

    On mechanical properties of metallic glass and its liquid vitrification characteristics

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    A systematic survey of the available data such as elastic constants, density, molar mass, and glass transition temperature of 45 metallic glasses is conducted. It is found that a critical strain controlling the onset of plastic deformation is material-independent. However, the correlation between elastic constants of solid glass and vitrification characteristics of its liquid does not follow a simple linear relation, and a characteristic volume, viz. molar volume, maybe relating to the characteristic size of a shear transformation zone (STZ), should be involved

    Phylogenetic diversity and relationships among species of genus Nicotiana using RAPDs analysis

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    Fifty six Nicotiana species were used to construct phylogenetic trees and to asses the genetic relationships between them. Genetic distances estimated from RAPD analysis was used to construct phylogenetic trees using Phylogenetic Inference Package (PHYLIP). Since phylogenetic relationships estimated for closely related species are more reliable than that estimated for distantly related species,analyses were conducted separately for groups of taxonomically related species. The results of the present investigation are broadly similar to the inferences by Goodspeed (1954) on the divergence andevolution of Nicotiana species. As would be expected, species included in the same or related subgeneric sections showed greater genetic affinity than species included in distant subgeneric sections. Available information on the geographical distribution of species, their karyotype differentiation in evolution, genome size variation and chromosome affinity in interspecific hybrids were used to interpret the results. The study has confirmed that the RAPD analysis is suitable for studying phylogenetic relationships between related species
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