The aqueous electrochemistry of a number of anthraquinone derivatives was studied by using cyclic voltammetry at the surface of carbon paste electrode (CPE). From measurements of the half-wave potential as a function of pH, the potential - pH diagrams were constructed for each compound. The values of formal potentials and the pK'a of some different redox and acid-base couples inv...

C li n ic a l The TV minimization filter was applied to the clinical slices after reconstruction. After a comprehensive study with λ values (equal for all slices) ranging from 10 to 200, the λ value which enables the greater minimization of TV was chosen and the resultant image is shown. Fig. 2. 3D TV values for phantom unfiltered and filtered data plotted as a function of λ values. Fig. 3. ASF...

In this paper, a closed-form expression for the probability of error in a coherent BPSK system over Generalized Rayleigh fading channels is derived. An Lbranch equal gain combining diversity scheme is used. Theoretical results for the probability of error are plotted for various values of the number of degrees of freedom (n) and diversity order (L). A simulation is performed and the simulated r...

Background: Muscle fatigue is an important issue in neuromuscular rehabilitation. Better control of this phenomenon would result in better prevention of its consequent physiological damages.Objective: To provide a mathematical representation of muscle fatigue as a function of time.Methods: We conducted this study by combining the EMG-based estimation methods of muscle activation with the availa...

The most commonly used configurations in digital holography-namely Fourier holograms, Fresnel holograms, and image-plane holograms-are analyzed with respect to Seidel's wave aberration theory. This analysis is performed by taking into account the phase terms involved in the recording and reconstruction processes. The combined phase term from both processes is compared with the Gaussian-referenc...

Ground waves and sky waves measured 209 km and 250 km south of six triggered lightning flashes containing 30 strokes that occurred in the half-hour before sunset on 27 August 2015 are presented and analyzed. We use a cross-correlation technique to find the ionospheric effective reflection height and compare our results to previous techniques that calculate effective height based on the time del...

We have established a novel method to evaluate the redox properties of tea polyphenols by HPLC-coulometric-array analysis. We plotted the quantity of electricity (µC) on the vertical axis and the electric potential (mV), adjusted with the associated palladium reference electrode, on the horizontal axis to provide "quantity versus potential (QP) plot". The patterns of the plots correspond to the...