نتایج جستجو برای: electromagnetic wave absorption
تعداد نتایج: 409073 فیلتر نتایج به سال:
Nanostructures loaded on halloysite nanotubes (HNTs) have attracted global interest, because the nanotubular HNTs could extend the range of their potential applications. In this study, we fabricated a novel nanocomposite with hollow iron nanoparticles loaded on the surface of HNTs. The structure of the iron nanoparticles can be adjusted by ageing time. Owing to the increased remnant magnetizati...
Introduction Knowledge of snow parameters is important for climatology, meteorology, hydrology, flood prevention and hydropower industry. Liquid water in a snow pack shows a dominant effect on reflection, absorption and transmission of electromagnetic waves especially in microwave region. Liquid water in snow plays a major role in metamorphism, mechanics and hydrology of snow, and in soil engin...
In this study the structure, magnetic and microwave absorption properties of cerium (Ce) doped barium hexaferrite with general formulae BaCexFe12-xO19 (x=0.0, 0.05, 0.1, 0.15, 0.2) have been investigated. These samples have been prepared by sol- gel method. Influence of replacing Fe+3 ion by rare- earth Ce+3 ion on the structural, magnetic and microwave absorption properties have been investiga...
Electromagnetic properties of aircraft and missile skins have a large effect on radar cross sections and determine the level of stealth that is achieved over the various RF bands currently in use. RF absorption, reflection, and propagation along the skin surface all serve as important measures of the electromagnetic performance of the coated surfaces. Non-invasive probing of the electromagnetic...
With the increasingly serious electromagnetic wave (EMW) pollution, development of high-performance EMW absorbing materials (EWAMs) has become a hot topic. Carbon-based EWAMs have excellent chemical stability, high electrical conductivity, and strong dielectric loss. In particular, three-dimensional (3D) porous carbon-based been widely developed in absorption field. The 3D structure not only re...
Electromagnetic Wave Absorption Performance of Carbonized Rice Husk Obtained at Various Temperatures
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