Showing papers in "Journal of Electrostatics in 1997"

TL;DR: In this article, an analysis of optical emission spectra was used for the detection of O, H and OH radicals, and the effects of the physicochemical parameters and discharge conditions on radical formation were studied.

TL;DR: In this paper, the authors explored the application of the MST method to dielectrophoresis (DEP) and electrorotation (ROT) studies and derived the general expressions for DEP force and ROT torque generated by electrical fields of arbitrary configuration.

TL;DR: In this paper, the experimental difficulties in this field and current progress towards a satisfactory theory are discussed and some recent experimental results are shown and unanswered questions identified, but reproducible experiments remain a challenge and a generally agreed upon theory of insulator-insulator charging remains elusive.

TL;DR: The dielectrophoretic manipulation of a rod-shaped virus, tobacco mosaic virus (TMV) by means of non-uniform AC electric fields is described, and the potential use of dielectophoresis for the collection and manipulation of sub-micron particles using microelectrode arrays is pointed to.

TL;DR: In this article, the dependence of nonthermal plasma behavior of volatile organic compounds (VOCs) on their chemical structures was investigated, using methane, ethane, ethylene, butane, 1,1,2-trichloroethane, trichlorocethylene, and tetrachloroethylene as target VOCs.

TL;DR: In this paper, a computer model has been developed for analysing the deposition of inhaled electro-aerosols in human airways and the effect of electrostatic charges on the total aerosol deposition efficiency in the human respiratory tract has been investigated based on measured data.

TL;DR: In this paper, the effects of the shape of treatment chamber and the addition of bactericides on pulse sterilization were studied, and three types of electrode systems (a needle-plate electrode system, and a plateplate electrode with and without edge systems) were used in this research.

TL;DR: In this article, the authors developed a mathematical model of the human lung which is implemented on a personal computer, which is of value for studies of airborne pollutant particle hazards, the administration of drugs and for the diagnosis of lung disease.

TL;DR: In this article, a new approach to describe VOC decomposition by nonthermal plasma processes is presented, which takes into account the influence of electron impact that is transferred to VOC molecules during decomposition process which time scale is involved.

TL;DR: In this article, a positive stainless-steel needle and a negative aluminum plate were used to generate an electrical discharge in a bubble formed by electrolysis and an intense light emission due to the generation of OH radical could be observed.

TL;DR: In this article, the authors focus on particle size distribution, fluidity, charging characteristics and their effects on the first pass transfer efficiency of powder coating and demonstrate the importance of characterizing physical parameters and control techniques to achieve desirable performance.

TL;DR: In this paper, the data, concepts, and criteria being used to develop safety guidance for industry are reviewed and outstanding problems considered, including static electricity is a potential ignition risk in a wide range of industrial operations.

TL;DR: In this article, the charging characteristics of polymer particles were investigated in order to develop an electrostatic separator for plastic-plastic mixtures which are to be recycled, and the charging section of the proposed separator utilizes a vibrating feeder equipped with a charging plate.

TL;DR: In this article, a non-thermal plasma with catalyst (copper coated zeolite catalyst i.e. Cu-ZSM-5) was studied to enhance NO removal efficiency of the plasma chemical reactions.

TL;DR: In this paper, two-dimensional turbulent gas flow and particle trajectories under the influence of an electric field are calculated by using the commercial computational fluid dynamics (CFD) package, FLUENT, combined with a finite-volume solver for the electric field and ion charge.

TL;DR: In this paper, a mathematical model of electrical field strength and space-charge density in an electrostatic precipitator is presented, based upon the time-dependent, linearized equations derived from the classical electrostatic equations on two-dimensional domain.

TL;DR: In this paper, a nonlinear model was developed to assess the time-dependent evolution of an infinite electrified jet, which assumes inviscid, axisymmetric flow in the jet and utilizes boundary element methods to describe unsteady jet evolution.

TL;DR: In this article, the conduction model for estimating the attraction force between two spheres is presented along with some experimental results and problems raised by the electrorheological fluids such as the prediction of their static yield stress and their apparent viscosity.

TL;DR: In this paper, the electrostatic properties of double-cantilevered micro-electromechanical silicon actuators are examined for possible use in large-scale, deformable mirror arrays.

TL;DR: In this paper, a retrofit type electrode suitable for the generation of a methane radical shower by replacing corona wires in electrostatic precipitators was used for the removal of NOx from simulated flue gases.

TL;DR: A simplified analysis of the double-layer electret with a frozen space charge leads to the conclusion that such a structure can show a piezoelectric effect when the elasticity coefficients of the layers differ as discussed by the authors.

TL;DR: In this paper, the authors investigated the behavior of electrostatic precipitators in coal-powered power plants and found that the plate spacings, the characteristics of the ash generated by each type of coal, and the mass load of ash in the gas flow affect the efficiency of the precipitator.

TL;DR: In this paper, the influence of a 50Hz sinusoidal electric field on flowing water-in-oil emulsions is reported, where a horizontal rectangular duct was used, with emulsion flowing through at flow rates up to 100 litre/min, giving Reynolds numbers in the range 1000 to 12,000.

TL;DR: In this article, the problems of formation and structure of the corona discharge from the surface of a conducting liquid sprayed electrohydrodynamically at the outlet of a capillary maintained at high potential are discussed.

TL;DR: In this paper, a numerical algorithm for simulating the electric field distribution and particle trajectories in tribo-charge powder coating systems is presented, where the particle-in-cell technique is used to couple both methods, which are applied iteratively until a self-consistent solution is obtained.

TL;DR: In this article, the saturation surface potential of monodisperse polystyrene has been measured as a function of film thickness, and it was shown that charges appear to be trapped within about 30 nm of the surface.

TL;DR: In this paper, the authors dealt with the variation of flame shape and soot emission for acetylene diffusion flame by applying electric field, and the efficiency of soot suppression exceeded 90% in a high-voltage region over 7 kV.

TL;DR: In this article, the authors demonstrate that cone discharges may also occur in case of highly insulating fine powders, however, in this case the equivalent energy is much lower than for coarse product.

TL;DR: In this article, the authors examined the process of charge development in powders for two different configurations: one is a fluidized bed between two porous electrodes, the other is a flow in a pneumatic conveyer.

TL;DR: In this article, a new electrical process to produce powders with defined chemical composition, size distribution, and morphology (shape and structure) is presented; first, the production of charged droplets with defined mass of solute per unit charge is achieved by electrosprays of two liquids in opposite polarities.