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Intra-channel nonlinear noise waveform is predicted by novel nonlinear models. The accuracy reaches 95% for various modulation formats and link configurations. Using the more accurate model, the compensation performance is increased by 1 dB.
Under the characteristics of the coal industry, this paper made related improvements to Michael Porter's “Diamond model”. Then this paper uses the improved model to analyze various factors of competitiveness of Henan coal industry. The conclusion is that competitiveness of Henan Coal Industry mainly comes from such factors as advantageous transportation, technological innovation. At the same time,...
To meet the requirements for being geared to the international standards and to meet the demand for self-development of an enterprise, it becomes more and more common for an enterprise to execute EPC projects. The EPC model compares with the traditional contract model, the risk of general contactor is the biggest undoubtedly. Through the analysis of the EPC model to determine the risk source and loss...
The dissipative particle dynamics simulation is usually used to study polymer in mesoscopic space. The traditional methods are resource intensive, especially when the scale of research is large. Therefore, improving computing efficiency is a key point in this research area. Two major issues are addressed in this paper. First, the DPD methods are analysed and the most time-consuming parts are identified:...
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