70,485 research outputs found

    Signal processing apparatus for multiplex transmission Patent

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    Sampling circuit for signal processing in multiplex transmission by Fourier analysi

    A netnography study on branded customer experience: Evidence from the red sea

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    This study addresses the question of what are the underlying dimensions and messages to self and others that constitute the construct of customer experience. The study uses a netnography method to validate or refute and extend a priori concepts that the literature identifies within the context of resort-hotel brands in a Sharm El Sheikh resort in Egypt. The results identify eight dimensions (comfort, educational, hedonic, novelty, recognition, relational, safety and sense of beauty) and unique configurations of these eight dimensions that extend prior research on customer experience

    Crowding effects in vehicular traffic

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    While the impact of crowding on the diffusive transport of molecules within a cell is widely studied in biology, it has thus far been neglected in traffic systems where bulk behavior is the main concern. Here, we study the effects of crowding due to car density and driving fluctuations on the transport of vehicles. Using a microscopic model for traffic, we found that crowding can push car movement from a superballistic down to a subdiffusive state. The transition is also associated with a change in the shape of the probability distribution of positions from negatively-skewed normal to an exponential distribution. Moreover, crowding broadens the distribution of cars' trap times and cluster sizes. At steady state, the subdiffusive state persists only when there is a large variability in car speeds. We further relate our work to prior findings from random walk models of transport in cellular systems.Comment: 23 pages, 11 figures, accepted for publication in PLoS ON

    Thermal Dynamics in Symmetric Magnetic Nanopillars Driven by Spin Transfer

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    We study the effects of spin transfer on thermally activated dynamics of magnetic nanopillars with identical thicknesses of the magnetic layers. The symmetric nanopillars exhibit anomalous dependencies of switching statistics on magnetic field and current. We interpret our data in terms of simultaneous current-induced excitation of both layers. We also find evidence for coupling between the fluctuations of the layers due to the spin transfer.Comment: 3 pages, 3 figure

    The Gauge Hierarchy Problem and Higher Dimensional Gauge Theories

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    We report on an attempt to solve the gauge hierarchy problem in the framework of higher dimensional gauge theories. Both classical Higgs mass and quadratically divergent quantum correction to the mass are argued to vanish. Hence the hierarchy problem in its original sense is solved. The remaining finite mass correction is shown to depend crucially on the choice of boundary condition for matter fields, and a way to fix it dynamically is presented. We also point out that on the simply-connected space S2S^2 even the finite mass correction vanishes.Comment: LaTeX2e. 12 pages, 3 Postscript figures; Added references, some comment

    Economic growth in low income countries: How the G20 can help to raise and sustain it

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    This paper aims to operationalise the G20 commitment to ensure that the benefits of global growth are shared with Low Income Countries. Growth is central to poverty reduction and the achievement of MDGs, and in developing countries it is episodic and volatile. However, while the current LICs have poor growth histories, the countries that started off the 1960s as LICs have had virtually the same average growth rates as other country groups. We review the evidence connecting long-run growth and growth accelerations and collapses to six areas of policy: trade, skills development, macro-stability, financial development, infrastructure investment and human development. Growth strategies have to be developed and owned by LIC governments and societies and they need to be tailored to individual country needs. However, there are some things which the G20 can do to help. We group these actions under three headings: mitigating downturns, boosting underlying growth rates and developing institutions and knowledge. A final annex describes how Korea’s spectacular growth strategy can be viewed through these lenses.growth, low income countries, G20
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