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.
The use of deep neural networks (DNNs) for feature extraction and Gaussian mixture models (GMMs) for acoustic modelling is often termed a tandem system configuration and can be viewed as a Gaussian mixture density neural network (MDNN). Compared to the direct use of DNN output probabilities in the acoustic model, the tandem approach suffers from a major weakness in that the feature extraction stage...
This paper presents a low profile ultra-wideband HF skeletal wire duoconical monopole antenna with parasitic grounded poles, which is then optimally designed using an efficient tool called charge and current marching-on-in-time (CCMOT) algorithm for analyzing thin-wire antennas together with the genetic algorithm (GA). As a result, an ultra-wideband HF antenna working between 7.5MHz and 25MHz is obtained,...
We present a design of periodically arranged microslits in a gold film for nonlinear terahertz phonon spectroscopy. Global optimization of array parameters gives a field enhancement of more than 50, due to plasmonic coupling between individual slits.
By utilizing the scatter matrix method, a coaxial Bragg resonator for a cyclotron autoresonance maser (CARM) oscillator operating in the TE61 mode at frequency of 350 GHz, is designed, analyzed, and optimized. Peculiarities of both the reflector and resonator, including the frequency spectra, the resonant frequencies, the quality factors are calculated. Single mode and multimode results are compared,...
Designers of concurrent programs are faced with many choices of synchronization mechanisms, among which clear functional trade-offs exist. Making synchronization customizable is highly desirable as different deployment scenarios of the same program often prioritize synchronization choices differently. Unfortunately, such customizations cannot be accomplished in the conventional non-modular implementation...
BEPCII is the upgrade project of Beijing Electron Positron Collider (BEPC). The installation of its storage ring components except the superconducting (SC) insertion magnets was completed in early November, 2006. While the improvement of the cryogenic system for SC magnets is in progress, the commissioning of the synchrotron radiation (SR) mode for the so called back-up scheme with conventional magnets...
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.