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 functional analytic method was developed by E.K.Ifantis in 1987 to prove that certain non-linear ordinary differential equation (ODEs) have a unique power series solution which converges absolutely in a specified disc of the complex plane. In this thesis, we extended this method to certain systems of two non-linear ordinary differential equations.We then applied the result to an nonlinear differential...
It selects three different axial clearances in a special humidity-removing stage of steam turbine. It is assumed that the position dropped off the coarse droplets is the trailing edge of the stationary blade, based on the formation of the coarse droplets. Ten sites are set on the trailing edge averagely along the blade height. Three representative water droplets ejecting from these sites are investigated...
Based on LabVIEW, the measurement system of I-V characteristics of solar energy is designed with a solar simulator, a Keithley 2400 Source Meter and a GPIB port. The system can quickly describe the I-V characteristic curves and calculate the basic characteristic parameters and focus on the analysis of the series resistance (Rs) and shunt resistance (Rsh). The results of the measurement demonstrate...
The non-uniform flow field around high-speed flying vehicle “bends” the ray and imposes an imaging deviation on the imaging plane. This deviation seriously affects the airborne imaging applications. In this study, the factors that influence the imaging deviation are cataloged into two classes: the vehicle-related factors and the flow-field-related factors. Flow density computations are discussed....
The least squares support vector machines (LS-SVM) is sensitive to noises or outliers. To address the drawback, a least squares support vector machines model incorporated with a prior knowledge on data is presented. Information of noise distribution for samples is introduced in the training process. A strategy based on the sample affinity is presented to discriminate data and noises. A fuzzy membership...
Electronic coupons have been accepted as a useful means in e-commerce. Multi-coupons are a special type of coupons, which are more efficient than single coupons in practice. So far, the application of multi-coupon systems is plagued by two main issues, i.e. how to provide efficient and flexible mechanism for redeeming, and how to implement the issuing protocol efficiently. In this paper, we give a...
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.