The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Customer credit scoring is an important concern for numerous domestic and global industries. It is difficult to achieve satisfactory performance by traditional models constructed on the assumption that the training and test data are subject to the same distribution, because the customers usually come from different districts and may be subject to different distributions in reality. This study combines...
This paper applies panel methodology to examine the short-run dynamics, the long-run equilibrium relationships and the causal relationship between energy consumption and economic growth. It is based on China's 37 industrial sectors over the period 1998 to 2010. Tests for panel unit roots, co integration in heterogeneous panels and panel causality are employed in a bivariate panel vector error correction...
On the basis of a binary stochastic differential game model representing the relationship between cartelized energy suppliers and a government on behalf of consumers, we study the decision-making behaviors of a government and suppliers with time-inconsistent preference in both cooperative and non-cooperative scenarios by making comparison with the benchmark model for game players with time-consistent...
During the gasoline engine start process, both fuel quantity and fuel film parameter change, fuel film dynamics in intake pipe is not balance, which makes the fuel quantity from nozzle and fuel quantity into the cylinder not be equaled. In order to control the air fuel ratio accurately in gasoline engine start process, fuel film model of intake pipe need to be established accurately. The costumed...
During the gasoline engine start process, air fuel ratio of gasoline engine always greatly departs the theoretical air fuel ratio by the affection of intake pipe fuel film. To decrease exhaust emission in engine start process, the dynamic characteristic of intake pipe fuel film is analyzed; a new dynamic fuel film model of intake pipe based on Aquino model is presented, and a fuel compensation method...
Drying characteristics of sewage sludge were investigated using hot air of a temperature range of 50~80degC and an air velocity range of 0.60~1.48 m/s at a laboratory scale dryer. Several mathematical models available in the literatures were fitted to the experimental data by multiple nonlinear regression analysis. Four statistical parameters: coefficient of determination (R2), reduced chi-square...
The combustion reaction kinetics of two Chinese straws were investigated by a differential thermal balance , volume fraction of reactive gas was N2: O2 = 80:20 and heating rate was 30degC/min. Reaction of samples were mainly composed volatile and fixed carbon combustion phase, ranges of them were 425 K - 650 K and 650 K - 810 K in round numbers according to TG, DTG and DTA curves. Reaction kinetic...
In this paper, a hierarchical fuzzy logic traffic controller is constructed for a real intersection of fourteen vehicle lanes and two pedestrian crossings controlled by signals with seven light phases. The hierarchical fuzzy controller has seven inputs as queue lengths of the seven light phases, and one output as green time of the selected phase. In the hierarchical fuzzy controller, there are six...
Formal methods are introduced into system design process that use rigorously specified mathematical models to build target systems. It can establish a precise and unambiguous model of a complex system. This paper takes an example for a complex NP-complete problem such as a class scheduling problem. By using the specification language Z, it designs and describes a formal mathematical model of a class...
During the gasoline engine transient process, both fuel quantity and fuel film parameter change, fuel film dynamics balance in intake pipe is destroyed, which makes the fuel quantity from nozzle and fuel quantity into the cylinder not be equaled. Therefore, fuel film model need to be established accurately in order to control the air fuel ratio accurately. The costumed fuel film model of Aquino is...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.