Amyloid -peptide (A ) and Paraquat PQ induce oxidative stress in astrocytes by formation of reactive oxygen species (ROS). The present study determines the cellular response to oxidative stress by use of proton nuclear magnetic resonance ( 1 H-NMR) spectroscopy. The cellular response was studied in cultured primary astrocytes exposed directly to 5 mM PQ or 40 M A (1-40) in the NMR tube (directl...

An accurate time-frequency representation (TFR) can provide useful information in non stationary data analysis and processing. The traditional methods like short-time Fourier transform (STFT) and wavelet transform (WT) based TFR approaches are leads to a tradeoff between time and frequency resolution. A recently proposed synchrosqueezing transform (SST), which is an extension of the WT, has bee...

After PQ data of interest are obtained, a comprehensive PQ assessment can be carried out depending on the purpose of the study. This may include power system and equipment modeling verification, PQ problem mitigation and optimization, and data analysis [4,5]. In most cases, automated PQ assessment is desirable because manual analysis may be difficult to carry out due to lack of time and special...

In this paper, a data stream architecture is presented for electrical power quality (PQ) which is called PQStream. PQStream is developed to process and manage time-evolving data coming from the country-wide mobile measurements of electrical PQ parameters of the Turkish Electricity Transmission System. It is a full-fledged system with a data measurement module which carries out processing of con...

where in that special case c = 1 may be chosen. With exception of Subsection 1.2, all spaces in this paper are defined on R . This justifies to omit R in the sequel. One of the main aims of the paper is to study the appropriate counterparts of (1.1.1) and (1.1.2) for the spaces B pq and F s pq . That means for a given smoothness s we are looking for B p1q1 B s p2q2 ⊂ B pq (1.1.4) 1991 Mathemati...

In this paper, we begin a classification of the vertex-transitive tournaments of order pq where p and q are distinct odd primes. In particular we characterize the pq-circulant tournaments; see Theorem 4.3. Moreover, we determine 2-closed (in Wielandt’s sense) oddorder transitive permutation groups of degree p and pq by using the classifications of vertextransitive tournaments of order p and pq....

The power quality (PQ) issue is get new measurement because of power system rebuilding and moving pattern towards distributed generation. PQ comprises of an expansive number of unsettling influences, for example, voltage sags, swells, harmonics, notch, flicker and so forth. To conquer these issues identified with the PQ, FACTS gadgets are presented. A distribution static compensator (D-STATCOM)...

This paper demonstrates classification of PQ events utilizing wavelet transform (WT) energy features by artificial neural network (ANN) and SVM classifiers. The proposed scheme utilizes wavelet based feature extraction to be used for the artificial neural networks in the classification. Six different PQ events are considered in this study. Three types of neural network classifiers such as feed ...