A facile strategy was reported to anchore silver nanoparticles (Ag NPs) onto three-dimensional reduced graphene oxide (3D rGO) via green and simple method. An accurate and reliable electrochemical sensing platform...
In view of the varying amounts of information and the difference in information value in sanatorium performance evaluation, Deng’s development relation model based on information difference is proposed herein. Firstly, the definition of panel data on sanatorium performance evaluation and the construction criteria of its optimal vector are given. Simultaneously, the indicators are standardized. In order to objectively highlight the difference of effective information among indicators, the entropy weight method is introduced to determine the weight of performance evaluation indicators in sanatoriums on the basis of traditional Deng’s correlation model avoiding the limitation of subjective effects. Furthermore, the weight of the temporal index is employed to determine the weight of performance evaluation results in different years, based on the new information priority, to dynamically evaluate the development trend of annual sanatorium performance. Finally, the performances of TS, YZ, and XZ sanatoriums are dynamically evaluated by using the proposed new grey relational model. Combined with the weight of time index, the 5-year comprehensive performance value is given. It is found that the performance level of TS sanatorium is the highest followed by YZ sanatorium and XZ sanatorium, which verifies the practicability and effectiveness of the model.
We provide a detailed proof of the validity of the Minimal Model Program for threefolds over excellent Dedekind separated schemes whose residue fields do not have characteristic 2 or 3.
In this paper, the optimal operation system of circulating water of thermal power unit is perfected. Through field test and theoretical calculation in different thermal power plants, the optimal operation mode of circulating water of different modes is determined under different load, water temperature and exhaust steam pressure of low-pressure cylinder. Taking the coal consumption rate of power supply unit as the objective function of circulating water system optimization, the analysis and calculation model of circulating water system optimization was established. The influence coefficient of exhaust steam pressure on power and heat consumption rate between low load condition and rated condition was studied by field measurement and theoretical calculation method, so as to improve the accuracy of optimization conclusion in low load condition.
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