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.
A two-scale model modified by improved geometrical optics (GO) is proposed. The improved geometrical optics considers the short waves diffraction and obtains the same accuracy as zero order Kirchhoff. Simulation shows that the modified two-scale model obtains satisfied accuracy as well as retains the simple representation in the frequency band which classical two scale model can not be applied. The...
In this paper, a three-phase 12/8 switched reluctance generator is taken as the study object and a control system based on that generator is designed. In that system, the digital signal controller applied for is dsPIC30F6010, and power converter circuit adopt asymmetric half-bridge topology, and the main switches use power MOSFET. The paper analyzes the process of power generation and the basic structure...
Levitation controllers have become a litmus test for control algorithms. A new control algorithm that simultaneously optimizes time and frequency performance is applied to a linearized model of a levitation system. It is shown that the resulting control presents superior performances to other controls algorithms applied to the same system.
This paper presents the results of analyses of the transient resistance and inductance of spark plasma, parameters which have been obtained using the hydrodynamic approach described in [2], and a new model for plasma resistance. A lumped RLC model to represent the transient process in the spark-discharge plasma has been built and solved using PSpice simulation software. The dynamic plasma resistance,...
Researchers have not specifically considered the determinants of post-purchase intention with regard to online insurance purchases. By consulting DeLone and McLean's ISS model, this study develops and empirically examines a model of the impact of system quality, information quality, and perceived product complexity on post-purchase intention in this context. Data collected from 177 online-insurance...
This paper presents the transmittance estimations for touch panel (TP) film with Cr and Cr2O3 coating by using neural network (NN) model. The NN model with quasi-Newton learning method was used to obtain the mapping between TP transmittance and its all possible influencing factors. This study tries to develop an artificial intelligent (AI) evaporation decision mechanism which can help the technician...
In this paper, a transmittance estimator of touch panel decoration film by using neural network is presented. In the evaporation process, the coating material and the related control parameters are all important influencing factors in obtaining the desired transmittance. The relationship among the transmittance and these factors are very complex and nonlinear. It's very hard to use the certain mathematical...
Surface acoustic wave (SAW) devices are of great interest for chemical and biochemical sensing applications. As the new piezoelectric materials are produced and the development of SAW device substrates expands from single-layer to multi-layer, analyzing the properties of piezoelectric substrates becomes more and more difficult. In this paper, a method that applies finite element (FEM) simulator to...
In this paper, we study bandwidth management of a wireless/optical based access/metro network in support of voice and data services. For voice services, we use a finite state Markov Chain to estimate the blocking probability of voice circuits over an Adaptive modulation and coding wireless channel, as a function of the channel parameters. For data services, we evaluate a rate matching and a buffer...
In this paper, we propose the design procedures for model conversion and digital redesign of a singular system, which is controllable at finite and impulsive modes. In order to attain a standard regular problem, we use some techniques to decompose the singular system into a reduced-order regular and nondynamic subsystem. As a result, some well-known design methodologies for a regular system can be...
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.