4,881 research outputs found

    Real-Time Pricing Strategy Based on the Stability of Smart Grid for Green Internet of Things

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    The ever increasing demand of energy efficiency and the strong awareness of environment have led to the enhanced interests in green Internet of things (IoTs). How to efficiently deliver power, especially, with the smart grid based on the stability of network becomes a challenge for green IoTs. Therefore, in this paper we present a novel real-time pricing strategy based on the network stability in the green IoTs enabled smart grid. Firstly, the outage is analyzed by considering the imbalance of power supply and demand as well as the load uncertainty. Secondly, the problem of power supply with multiple-retailers is formulated as a Stackelberg game, where the optimal price can be obtained with the maximal profit for retailers and users. Thirdly, the stability of price is analyzed under the constraints. In addition, simulation results show the efficiency of the proposed strategy

    KN and KbarN Elastic Scattering in the Quark Potential Model

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    The KN and KbarN low-energy elastic scattering is consistently studied in the framework of the QCD-inspired quark potential model. The model is composed of the t-channel one-gluon exchange potential, the s-channel one-gluon exchange potential and the harmonic oscillator confinement potential. By means of the resonating group method, nonlocal effective interaction potentials for the KN and KbarN systems are derived and used to calculate the KN and KbarN elastic scattering phase shifts. By considering the effect of QCD renormalization, the contribution of the color octet of the clusters (qqbar) and (qqq) and the suppression of the spin-orbital coupling, the numerical results are in fairly good agreement with the experimental data.Comment: 20 pages, 8 figure

    Two Solar Tornadoes Observed with the Interface Region Imaging Spectrograph

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    The barbs or legs of some prominences show an apparent motion of rotation, which are often termed solar tornadoes. It is under debate whether the apparent motion is a real rotating motion, or caused by oscillations or counter-streaming flows. We present analysis results from spectroscopic observations of two tornadoes by the Interface Region Imaging Spectrograph. Each tornado was observed for more than 2.5 hours. Doppler velocities are derived through a single Gaussian fit to the Mg~{\sc{ii}}~k~2796\AA{}~and Si~{\sc{iv}}~1393\AA{}~line profiles. We find coherent and stable red and blue shifts adjacent to each other across the tornado axes, which appears to favor the interpretation of these tornadoes as rotating cool plasmas with temperatures of 10410^4 K-10510^5 K. This interpretation is further supported by simultaneous observations of the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory, which reveal periodic motions of dark structures in the tornadoes. Our results demonstrate that spectroscopic observations can provide key information to disentangle different physical processes in solar prominences.Comment: 14 figures, accepted by Ap

    Practices of Market Making for Sustaining Electronic Auction

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    This article examines how technology may be used continuously in organizations. Particularly, it investigates the organizing practices that support continuous technology-use. Exploring such organizing practices is meaningful because they could sustain ongoing organizational innovation. A field study on the enterprise application of e-auction (electronic auction, or otherwise known as online reverse auction and electronic bidding) is used to illustrate how a marketplace is effectively maintained over a span of seven years. Our findings identify a set of market-making practices and its principles that underscore sustained use of e-auction. This research contributes to literature on technology-use and adoption, as well as adds to studies on the electronic marketplace. It also offers practical lessons to implementers who seek to adopt the e-auction to achieve significant cost-savings and streamline the supply chain

    DEVELOPING SUPPLY CHAIN DYNAMIC CAPABILITY TO REALIZE THE VALUE OF INTER-ORGANIZATIONAL SYSTEMS

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    In face of increasingly complex supply chain, firms are taking steps to develop different kinds of inter-organizational systems (IOS) to facilitate information sharing and sustain competitive competency. These systems are expected to provide great business value, however many of them do not fulfill the expected promise as these systems are relatively more complicated and the usage is across supply chains. Built upon process theory and the view of dynamic capability, this study has defined two supply chain dynamic capabilities (SDC) -- supply chain integration capability and supply chain cooperation capability and proposed that they might significantly moderate IOS performance. A general survey is conducted in Taiwan PC industry to validate the research model. A linear regression is used to testify the hypotheses. The results show that improving SDC can create greater IOS performance. Furthermore, supply chain integration capability has stronger moderating effect of IOS performance than supply chain cooperation capability. These findings contribute to the literature by confirming the influence of SDC on IOS performance and also by showing which SDC is of primary importance to firms
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