![]() ![]() It was found that with an increase in the mean value of the external electric field, the chain of dust particles is displaced as a whole in the direction opposite to the action of the electrostatic force on them. Dust particles also come from dead plant and animal matter, sea salt, desert, volcanic ash etc. National Aeronautics and Space Administration has collected cosmic dust particles directly from Earth’s stratosphere, where the concentration of terrestrial dust is low. Using high-altitude research aircraft, the U.S. PM10 also includes dust from construction sites, landfills and agriculture. Smaller particles experience less-severe heating and survive, eventually settling to Earth’s surface. It was shown that for a certain large value of the external electric field, the charge of the third dust particle is the smallest of all the particles in the chain. Particles are defined by their diameter for air quality regulatory purposes. Obtained data are in qualitative agreement with the experimental and numerical data presented in the literature. Particles larger than 10 m are not breathable, thus can only damage external organs mostly causing skin and eye irritations, conjunctivitis and enhanced susceptibility to ocular infection. Calculations showed that the charge of the first dust particle in the chain and the total charge of the entire chain, as well as the length of the chain, grow linearly with the external electric field strength. Cosmic dust also called extraterrestrial dust, space dust, or star dust is dust that occurs in outer space or has fallen onto Earth. Dust particle size is a key determinant of potential hazard to human health. We present 7-mm continuum observations of 14 low-mass pre-main-sequence stars in the Taurus-Auriga star. Particular attention is paid to the effect of plasma polarization around dust particles and the wake formation under the action of the external electric field. Large dust particles in disks around T Tauri stars. The model considers the motion of dust particles under the action of gravity, external electric field, the Coulomb repulsion, and the electrostatic force from the space charge surrounding the dust particles. Dust in homes is composed of about 2050 dead skin cells. On Earth, it generally consists of particles in the atmosphere that come from various sources such as soil lifted by wind (an aeolian process), volcanic eruptions, and pollution. ![]() This paper presents a numerical study of the structural parameters of a one-dimensional chain of three dust particles levitating in the near-electrode layer of an rf discharge or in the stratum of a dc discharge. Dust is made of fine particles of solid matter. ![]()
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