573 research outputs found
Ideological and political teaching practice of electrical specialty courses in colleges and universities
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
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
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
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
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Characteristics of Oregon coast winter storm events from 1981-1990
The purpose of this paper is to identify significant storm events
occurring over a ten year period along the Oregon coast. The findings will be
used in a larger research framework to build an information base that looks into
the role of climatic forcing on coastal erosion and sediment transport processes.
The work involved analysis of climatic data for a ten year period (1981-1990)
during the months of December, January, February and March. The climatic
factors considered most relevant to characterizing storm activity on the Oregon
coast were: wind direction, wind speed and precipitation. The data was collected
from documents and computer records at weather stations in Astoria, Newport
and Cape Blanco. Tables and graphs were produced following arithmetic calculations.
The data was manipulated to show daily, monthly and yearly storm distribution.
Storm occurrence was plotted by time and location. A relationship of
greater storm frequency was observed with 1982-1983 ENSO climatic events.
Results showed that the greatest storm magnitude was found during the winter of
1982-1983. The prevailing wind direction during most winter storms was
southerly. In addition to the winter 1982-1983 storm period, two other major
storm periods were identified over the ten year study period. January 1990
appeared to be a major storm period at all three stations. When the three stations
were compared, Cape Blanco had the most intensive storm activity over the
ten year period
Renormalization formalism for superconducting phase transition with inner-Cooper-pair dynamics
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
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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