573 research outputs found

    Ideological and political teaching practice of electrical specialty courses in colleges and universities

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    In the personnel training wo rk in colleges and universities, the basic task of establishing a person through each link, is always the goal that our country’s higher education pursues. In the background of the new period, how to penetrate the ideological and political content in the electrical course, construct the new model of the course ideological and political, become the key topic that the electrical teacher needs to explore. In order to cultivate the students of this major into high-quality talents with both morality and ability, the teachers of electrical major courses need to establish the ideological and political teaching model suitable for this major course as soon as possible. Based on this, this paper probes into the practical strategies of ideological and political teaching of electrical major courses in colleges and universities, in order to provide valuable reference for the majority of colleagues

    Forced response characteristics of random mistuned blade disk based on weibull distribution and monte carlo simulation

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    This paper presents a method of mistuning identification of a random mistuned bladed parameter, to predict the forced vibration characteristics of random mistuned blade disk of aeroengine compressor, based on the prestress mode synthesis method, substructure finite element reduction model was adopted, the identification method combines Weibull distribution with Monte Carlo simulation to identify the random mistuned blade parameters. The vibration characteristics of mistuned bladed disks under different engine orders of excitation were calculated, and the vibration characteristics of mistuned bladed disk systems under different mistuning standard deviations were discussed. Vibration localization characteristics of mistuned bladed disk system were analysed by using localization factor. The correctness of the identification method was verified by calculating the vibration amplitude of mistuned bladed disk system under different mistuning standard deviations

    Quality Scalability Compression on Single-Loop Solution in HEVC

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    This paper proposes a quality scalable extension design for the upcoming high efficiency video coding (HEVC) standard. In the proposed design, the single-loop decoder solution is extended into the proposed scalable scenario. A novel interlayer intra/interprediction is added to reduce the amount of bits representation by exploiting the correlation between coding layers. The experimental results indicate that the average Bjøntegaard delta rate decrease of 20.50% can be gained compared with the simulcast encoding. The proposed technique achieved 47.98% Bjøntegaard delta rate reduction compared with the scalable video coding extension of the H.264/AVC. Consequently, significant rate savings confirm that the proposed method achieves better performance

    Autocorrelation Based Transmission Power Control in WBANs

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    In this paper, we propose an autocorrelation-based transmission power control (A-TPC) method to increase the transmission reliability and reduce the energy consumption. In A-TPC, data packets from multiple sensor nodes are scheduled in the TDMA-fashion. The transmission power level and the slot scheduling are jointly optimized based on a temporal autocorrelation model. The channel datasets collected from real WBAN daily scenarios are imported into our simulation model to evaluate the performance of A-TPC. Simulation results demonstrate that A-TPC significantly improves the transmission reliability and reduces the energy consumption

    Renormalization formalism for superconducting phase transition with inner-Cooper-pair dynamics

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    As charge carrier of the macroscopic superconductivity, the Cooper pair is a composite particle of two paired electrons, which has both center-of-mass and inner-pair degrees of freedom. In most cases, these two different degrees of freedom can be well described by the macroscopic Ginzburg-Landau theory and the microscopic Bardeen-Cooper-Schrieffer (BCS) theory, respectively. Near the superconducting phase transition where the Cooper pair is fragile and unstable because of the small binding energy, there are non-trivial couplings between these two different degrees of freedom due to such as finite energy and/or momentum transfer. The non-trivial couplings make the original derivation of the Ginzburg-Landau theory from the BCS theory fail in principle as where these two different degrees of freedom should not be decoupled. In this manuscript, we will present a renormalization formalism for an extended Ginzburg-Landau action for the superconducting phase transition where there is finite energy transfer between the center-of-mass and the inner-pair degrees of freedom of Cooper pairs. This formalism will provide a theoretical tool to study the unusual effects of the inner-pair time-retarded physics on the superconducting phase transition.Comment: 10 pages, 4 figure

    Research and practice on training mode of applied talents for electrical engineering majors in universities

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    The training of applied talents focuses on students’ innovation ability and engineering practice ability, which requires electrical engineering teachers to fully embody the integration of theoretical knowledge and engineering practice in their teaching. In the teaching reform work, teachers should pay attention to optimize the teaching Settings, starting from two aspects of theory and practice, to promote students to obtain more knowledge of electricity, eff ectively develop students’ application level of electric electronic technology, and help students develop comprehensively. Colleges and universities should pay more attention to the training of application-oriented talents and train more qualifi ed talents for the development of social production. Based on this, this paper analyzes the practical strategies for the training mode of applied talents for electrical engineering majors in colleges and universities, in order to provide references for educators
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