This article studied static deflection, natural frequency and nonlinear vibration of a clamped-clamped microbeam under discontinues electrostatic actuation. The electrostatic actuation was induced by applying AC-DC voltage between the microbeam and electrode plate. In contrast to previous works, it was assumed that length of the electrode plate was smaller than that of the microbeam. In additio...

Direct current cardioversion/defibrillation is an important part of the intensivist's armamentarium. Emergent application may be lifesaving. Elective cardioversion should be used cautiously, with attention to patient selection and proper techniques. Repetitive, futile attempts at direct current cardioversion should be avoided. Reducing or eliminating arrhythmia precipitants may be safer and mor...

The paper focuses on two particular phenomena which contribute to the poor collection efficiency of fine particles (from ~ 0.1 μm to ~ 2 μm) by electrostatic precipitators (ESPs). Firstly, the influence of turbulence on collection rate is considered as well as the fact that the charged fine particles are expected to give the main contribution in the generation of small eddies in ESPs. Experimen...

In this paper, results of Particle Image Velocimetry (PIV) measurements of the electrohydrodynamic (EHD) flow velocity fields in an electrostatic precipitator (ESP) are presented. The measurements were carried out for various densities of submicron dust. The ESP was an acrylic parallelepiped with a wire discharge electrode and two plate collecting electrodes. The positive DC voltage was applied...

The objective of this study was to develop a new protocol that could be used for large-scale separation of phosvitin from egg yolk using ethanol and salts. Yolk granules, which contain phosvitin, were precipitated after diluting egg yolk with 9 volumes of distilled water. The pH of the yolk solution was adjusted to pH 4.0 to 8.0 using 6 N HCl or NaOH, and then yolk granules containing phosvitin...

To the Editor—We read with great interest Kuberski and Yourison’s hypothesis that Coccidioides spp. and other dimorphic fungi may be the precipitants of sarcoidosis in a proportion of cases [1]. We would like to suggest additional ways to test this hypothesis, as well as suggesting that Cryptococcus spp. be included in the list of fungi considered possible precipitants. A single-center study of...