Ferroelectric Class II ceramic capacitors allow for highly compact converter realizations, but are showing relatively high losses large-signal excitations which must be taken into account in the system dimensioning. Recent literature introduced iGSE-C Q , a Steinmetz model based on macroscopic c...

Abstract Estimating the elements of a matrix, when only margins (row and column sums) are known, but supposedly similar ‘reference matrix’ is available, standard problem in many disciplines. After discussing main types, issues applications these two-directional matrix adjustment problems paper concentrates on case negative models with quadratic objective functions. The solution Improved Normali...

nowadays, radar systems have many applications and radar imaging is one of the most important of these applications. inverse synthetic aperture radar (isar) is used to form an image from moving targets. conventional methods use fourier transform to retrieve doppler information. however, because of maneuvering of the target, the doppler spectrum becomes time-varying and the image is blurred. joi...

The important normalized maximum likelihood (NML) distribution is obtained via a normalization over all sequences of given length. It has two short-comings: the resulting model is usually not a random process, and in many cases, the normalizing integral or sum is hard to compute. In contrast, the recently proposed sequentially normalized maximum likelihood (SNML) models always comprise a random...

In January 2020, the coronavirus, known as COVID-19 launched first strike in Wuhan China, shutting down local economy and causing massive loss. The expeditious spread of then became a global epidemic. ubiquitous virus is jeopardizing both home life economical life. main objective this paper to examine how tourism, catering, hotel stock returns respond stress Covid-19 pandemic Chinese market. Se...

This paper follows a word-document co-clustering model independently introduced in 2001 by several authors such as I.S. Dhillon, H. Zha and C. Ding. This model consists in creating a bipartite graph based on word frequencies in documents, and whose vertices are both documents and words. The created bipartite graph is then partitioned in a way that minimizes the normalized cut objective function...

A segment-based C0 (the zero-th order of cepstral coefficient) adaptation scheme for PMC-based Mandarin speech recognition is proposed in this paper. It incorporates a new C0 model of speech signal into the PMC method to improve the gain matching between the clean-speech HMM models and the current noise model. The C0 model is constructed in the training phase by jointly modeling the normalized ...