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The bipolar configuration is regarded as a promising way for the integration of distributed/centralized energy resources (CER and DER) in future meshed DC grid. In order to achieve a DC-DC voltage conversion capability with bipolar integration, a monopolar-to-bipolar DC-DC converter interface is usually requested for the inner power collection network of a given CER/DER with the monopolar configuration...
The large finite element software ANSYS and the CFD software FLUENT are used to analyze the dynamic response of TLP's tendon in current load effect. ANSYS is used to figure out the hydrodynamic forces of tendon. The hydrodynamic forces are transferred to the tendon through flow field. The tendon is considered as two tips end-fixed and its dynamic response is solved in different pretensions. The results...
To separate the mixture of two radar fuze signals - the linear frequency modulation (LFM) and sinusoidal frequency modulation (SFM) signals overlapped both in time and frequency domain in single channel, the method of zero phase filtering in fractional Fourier domain is proposed. The fractional Fourier transform (FRFT) of mixed signal is derived and it can be found that separation in the improved...
Energy efficiency is an important issue in radio cellular network planning due to the increasing awareness of environmental protection and cost-efficiency. Heterogenous cloud computing technology is introduced to cellular networks in recent years, which can improve energy utilization by employing lower power cells to reduce the distance between users and base stations, as well as simplifying the system...
Under the software environment of MATLAB/Simulink, the communication system of direct sequence spread spectrum (DSSS) is dynamically modeled and simulated over a new practical Rayleigh channel, and the relationship curves of the bit error rate (BER) with the signal-to-noise ratio (SNR) of DSSS communication systems are presented. It is analyzed that DSSS system can effectively overcome multipath fading...
According to a semi-submersible platform, the platform air gap response is studied by the method of nonlinear time domain coupled analysis. In the numerical simulation, the wave surface elevations and the wave forces are calculated by boundary element and perturbation expansion methods, the mooring forces are calculated by piecewise extrapolating method, and the platform motions are calculated by...
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