so far, the financial experts could not calculate independent earnings to have a necessary quality. in this case, they can reach a range of earnings, which show a more correct form of quality of earnings, of course with performing the suitable equitabilities. therefore, the concept of quality of earnings is not a fixed defining. however, it is a relative concept that depends to its relation to ...

In the competitive market of B2B E-commerce platform, the former entrant has the advantage of switching cost while the later entrant has the advantage of declining IT cost. Considering the variable investment cost due to the improvement of platform quality, the paper develops an IT investment model to investigate the best investment strategy for B2B E-commerce platform under the impact of switc...

The economic and stable operation was affected seriously by coal quality disturbance for power plants. Based on model analysis, influence of the disturbance can be considered as gain change of control system. Power capability coefficient of coal was constructed to inhibit it. Accuracy of the coefficient was verified by operating data. Then coal quality disturbance free system based on gain sche...

The proposed method is based on estimating software modules’ complexity by means of metrics. Indices of source code complexity are the input data for the method. Ranged selection software modules with faults form the output data for the method. The verification of the method has been performed on the basis of representative selection of experimental data for five systems. An appropriate coeffic...

For any given potential, linear response theory tells us the size that the von Weizsäcker coefficient must assume in order to obtain the correct energy in the weak coupling limit. With this necessarily imposed choice, the quality of results is investigated as the coupling is strengthened. From the study of a number of model problems (the harmonic oscillator, the Yukawa well and the Mathieu pote...