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.
In the business sector, it has always been a difficult task to predict the exact daily price of the stock market index, hence, there is a great deal of research being conducted regarding the prediction of the direction of stock price index movement. Many factors such as political events, general economic conditions, and traders' expectations may have an influence on the stock market index. There are...
The effect of Vlf communication is impacted by the environment factors, so the effect lacks the uniformity in the region of time, space and frequency. It made use of the prediction of the vlf wave propagation, applied the waveguide mode theory to set up the math model and process the computer simulation, predicted the signal field strength of vlf, the prediction results accord with the measuring data...
This paper analyze the influential factors of energy consumption volume. Use the concept of matter-element and correlation function to establish prediction model, the prediction results can be obtained by means of cluster analysis. Through analyzing and calculating the historical data of China, the results show that the model in the prediction of energy consumption volume is valid.
Grey theory was applied in constructing the model of the estimating nuclear explosion yield, to compensate the practical value of the existing nuclear explosion yield detecting methods and improve the accuracy of the yield estimate value. The methods of state estimation, bad data detection and identification were applied in grey system modeling to get some more reasonable results compared with the...
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.