نتایج جستجو برای: particle deposition
تعداد نتایج: 262943 فیلتر نتایج به سال:
The early stages of thin film formation are described by a simple hybrid model that couples a set of discrete kinetic rate equations to a Fokker-Planck (FP)-type continuum. Unique features of the atomic processes in energetic particle deposition are outlined and discussed. A thermal atom deposition process is benchmarked with Zinsmeister's analytical theory [~7] to demonstrate the simplicity an...
Four cyclone concentrators were designed and fabricated to compare their particle separation and concentration behavior, such as the major, minor, outlet, and wall deposition fractions. Two of the cyclone concentrators were the conventional type, with the minor flow tube connected to the particle outlet at the bottom of the cyclone. The others were modified cyclone concentrators with a gap betw...
We report on the production of multi-phase WO3 and WO3-x (where x could vary between 0.2 and 0.33) nanostructures synthesized by CO2-laser pyrolysis technique at varying laser wavelengths (9.22-10.82 μm) and power densities (17-110 W/cm). The average spherical particle sizes for the wavelength variation samples ranged between 113-560 nm and the average spherical particle sizes for the power den...
To relate exposure to adverse health effects, it is necessary to know where particles in the submicron range deposit in the respiratory tract. The possibly higher vulnerability of children requires specific inhalation studies. However, radio-aerosol deposition experiments involving children are rare because of ethical restrictions related to radiation exposure. Thus, an in vivo study was conduc...
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