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In this paper, a fractional-order model of hepatitis C virus (HCV) with inhibition due to infection is studied. Based on the basic reproduction number, backward bifurcation of such model is investigated under some conditions. When the efficacy of interferon-α therapy is low, it is shown that the phenomenon of backward bifurcation will appear in the model. It means that there coexist disease-free and...
During recent years, electronic business industry has been developed rapidly. Some companies in the industry have been listed on the security market overseas or in the domestic. They have achieved excellent performance in the stock market, and given great value returns to the shareholders. Chinese economy is experiencing an important period of transforming industrial and economic structures. More...
Since B-to-B commercial websites play a decisive role in electronic business and trade, the evaluation and selection of them are very important. There have existed many methods for evaluation on commercial websites nowadays. But there are very few patterns of evaluation that are widely recognized and accepted so far. To tolerate subjective and objective factors that might influence evaluation results,...
Experiential marketing has been illustrated and discussed by many scholars in the past several decades. But the application of experiential marketing in electronic business field can only be sourced to several years before. With the rapid development of information technology and knowledge economy, the prospect of experiential marketing in e-commerce area is foreseeable. Netizens and net customers...
The daily clearing price curve in electricity market varied with multi-period and strong fluctuation characteristic. When grey GM (1, 1) model is used in forecast, the forecast error exceeded the permitted precision. This is because GM (1, 1) model is invalidated only if the price series did not follow the rule of exponential growth. In this case, grey model with period residual modification is proposed,...
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