12,519 research outputs found

    MVNC: A Multiview Network Computer Architecture

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    In this paper, MVNC, a multiview network computer system for a high usability thin-client computing environment, is introduced. MVNC uses a revised SBC model to offer a new framework for thin client computing. MVNC can be used as a full functional Windows machine, or used as a Linux workstation, or a~graphic terminal. Its multiview work style is achieved by the attempts on GUI seamless integration technology, device integration technology and local video playback support. MVNC is implemented in an embedded Linux environment using a MIPS-4KC microprocessor. Test results on video application show that MVNC system uses its client hardware more efficiently and the load of MVNC server is lightened

    Distributed entanglement induced by dissipative bosonic media

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    We describe a scheme with analytic result that allows to generate steady-state entanglement for two atoms over a dissipative bosonic medium. The resonant coupling between the mediating bosonic mode and cavity modes produces three collective atomic decay channels. This dissipative dynamics, together with the unitary process induced by classical microwave fields, drives the two atoms to the symmetric or asymmetric entangled steady state conditional upon the choice of the phases of the microwave fields. The effects on the steady-state entanglement of off-resonance mediating bosonic modes are analyzed. The entanglement can be obtained with high fidelity regardless of the initial state and there is a linear relation in the scaling of the fidelity with the cooperativity parameter. The fidelity is insensitive to the fluctuation of the Rabi frequencies of the classical driving fields.Comment: to appear in Europhysics Letter

    Protective effect of total flavonoids from boxthorn leaf against UVB irradiation-induced skin injury

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    Purpose: To investigate the protective effect of total flavonoids from boxthorn leaf against skin injury induced by UVB irradiation, and to elucidate the underlying mechanism of action. Method: Healthy female mice (n = 100) were randomly divided into four groups: normal control group, UV negative control group, cream base group, and boxthorn leaf total flavonoid (BLTF) group, with 25 mice in each group. The mice in each group were irradiated with ultraviolet B (UVB) irradiation instrument for 1.5 h daily for 3 weeks. Mice in the cream base group were smeared with cream base on their backs, while mice in BLTF group were smeared with 15 mg/g boxthorn BLTF cream. The control and negative control group mice were not treated. Changes in superoxide dismutase (SOD), malondialdehyde (MDA) and glutathione peroxidase (GSH-Px) levels were determined using standard methods. Results: Compared to the negative control group, the levels of SOD and GSH-Px in the control group and BLTF were significantly elevated, while MDA levels declined significantly (p < 0.05). Although higher GSH-Px and SOD levels, and lower MDA were seen in the cream base group than in negative control group, these indices were comparable for the two groups (p > 0.05). Conclusion: The total flavonoids of boxthorn leaves improve resistance to UVB-induced skin damage by regulating SOD, MDA and GSH-Px levels in the skin of mice. Thus, they exert protective effects on the skin
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