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.
Three indicators (R, I30, P), and all four indicators (R, I30, P, I) of erosive rainfall in Jia Zhaichuan small watershed of Song county are chosen respectively as the input vector to predict sedimentation volume with the two neural network of RBF and BP, and fit with the actual values. The results testify the fitting and predicted effects of RBF neural network are all better than BP network, as well...
Particle swarm optimization (PSO) algorithm can be used to solve optimization problem. The Back Propagation (BP) network convergence speed is very fast after being optimized by PSO, and it can also avoid the defects of local infinitesimal and constringent plateau. This text uses a project in Yanhe basin as an example, and applies evidence synthesis trained by particle swarm optimization neural network...
Based on the measured data of hillslope simulated rainfall experiment in the Loess Plateau of China, the method of back-propagation neural networks optimized by genetic algorithms was used to establish the hillslope runoff and infiltration model. The rainfall intensity, rainfall duration, initial soil water content and slope were selected as the model inputs, the runoff volume and infiltration volume...
In order to explore the water use characteristics of fruit tree and provide theoretical basis of effective and reasonable water conservation measures in Beijing. The transpiration of cherry was continuously monitored by heat pulse technology, and meteorological data were synchronously recorded. Because soil water contend (SWC), photosynthetically active radiation (PAR) and vapor pressure deficit (VPD)...
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.